src/pcre2test.c - platform/external/pcre - Git at Google

 /*************************************************
 *             PCRE2 testing program              *
 *************************************************/

 /* PCRE2 is a library of functions to support regular expressions whose syntax
 and semantics are as close as possible to those of the Perl 5 language. In 2014
 the API was completely revised and '2' was added to the name, because the old
 API, which had lasted for 16 years, could not accommodate new requirements. At
 the same time, this testing program was re-designed because its original
 hacked-up (non-) design had also run out of steam.

                        Written by Philip Hazel
      Original code Copyright (c) 1997-2012 University of Cambridge
     Rewritten code Copyright (c) 2016-2022 University of Cambridge

 -----------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:

     * Redistributions of source code must retain the above copyright notice,
       this list of conditions and the following disclaimer.

     * Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in the
       documentation and/or other materials provided with the distribution.

     * Neither the name of the University of Cambridge nor the names of its
       contributors may be used to endorse or promote products derived from
       this software without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
 -----------------------------------------------------------------------------
 */


 /* This program supports testing of the 8-bit, 16-bit, and 32-bit PCRE2
 libraries in a single program, though its input and output are always 8-bit.
 It is different from modules such as pcre2_compile.c in the library itself,
 which are compiled separately for each code unit width. If two widths are
 enabled, for example, pcre2_compile.c is compiled twice. In contrast,
 pcre2test.c is compiled only once, and linked with all the enabled libraries.
 Therefore, it must not make use of any of the macros from pcre2.h or
 pcre2_internal.h that depend on PCRE2_CODE_UNIT_WIDTH. It does, however, make
 use of SUPPORT_PCRE2_8, SUPPORT_PCRE2_16, and SUPPORT_PCRE2_32, to ensure that
 it references only the enabled library functions. */

 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif

 #include <ctype.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <time.h>
 #include <locale.h>
 #include <errno.h>

 #if defined NATIVE_ZOS
 #include "pcrzoscs.h"
 /* That header is not included in the main PCRE2 distribution because other
 apparatus is needed to compile pcre2test for z/OS. The header can be found in
 the special z/OS distribution, which is available from www.zaconsultants.net or
 from www.cbttape.org. */
 #endif

 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif

 /* Debugging code enabler */

 /* #define DEBUG_SHOW_MALLOC_ADDRESSES */

 /* Both libreadline and libedit are optionally supported */
 #if defined(SUPPORT_LIBREADLINE) || defined(SUPPORT_LIBEDIT)
 #if defined(SUPPORT_LIBREADLINE)
 #include <readline/readline.h>
 #include <readline/history.h>
 #else
 #if defined(HAVE_EDITLINE_READLINE_H)
 #include <editline/readline.h>
 #elif defined(HAVE_EDIT_READLINE_READLINE_H)
 #include <edit/readline/readline.h>
 #else
 #include <readline.h>
 /* GNU readline defines this macro but libedit doesn't, if that ever changes
 this needs to be updated or the build could break */
 #ifdef RL_VERSION_MAJOR
 #include <history.h>
 #endif
 #endif
 #endif
 #endif

 /* Put the test for interactive input into a macro so that it can be changed if
 required for different environments. */

 #define INTERACTIVE(f) isatty(fileno(f))


 /* ---------------------- System-specific definitions ---------------------- */

 /* A number of things vary for Windows builds. Originally, pcretest opened its
 input and output without "b"; then I was told that "b" was needed in some
 environments, so it was added for release 5.0 to both the input and output. (It
 makes no difference on Unix-like systems.) Later I was told that it is wrong
 for the input on Windows. I've now abstracted the modes into macros that are
 set here, to make it easier to fiddle with them, and removed "b" from the input
 mode under Windows. The BINARY versions are used when saving/restoring compiled
 patterns. */

 #if defined(_WIN32) || defined(WIN32)
 #include <io.h>                /* For _setmode() */
 #include <fcntl.h>             /* For _O_BINARY */
 #define INPUT_MODE          "r"
 #define OUTPUT_MODE         "wb"
 #define BINARY_INPUT_MODE   "rb"
 #define BINARY_OUTPUT_MODE  "wb"

 #ifndef isatty
 #define isatty _isatty         /* This is what Windows calls them, I'm told, */
 #endif                         /* though in some environments they seem to   */
                                /* be already defined, hence the #ifndefs.    */
 #ifndef fileno
 #define fileno _fileno
 #endif

 /* A user sent this fix for Borland Builder 5 under Windows. */

 #ifdef __BORLANDC__
 #define _setmode(handle, mode) setmode(handle, mode)
 #endif

 /* Not Windows */

 #else
 #include <sys/time.h>          /* These two includes are needed */
 #include <sys/resource.h>      /* for setrlimit(). */
 #if defined NATIVE_ZOS         /* z/OS uses non-binary I/O */
 #define INPUT_MODE   "r"
 #define OUTPUT_MODE  "w"
 #define BINARY_INPUT_MODE   "rb"
 #define BINARY_OUTPUT_MODE  "wb"
 #else
 #define INPUT_MODE          "rb"
 #define OUTPUT_MODE         "wb"
 #define BINARY_INPUT_MODE   "rb"
 #define BINARY_OUTPUT_MODE  "wb"
 #endif
 #endif

 /* VMS-specific code was included as suggested by a VMS user [1]. Another VMS
 user [2] provided alternative code which worked better for him. I have
 commented out the original, but kept it around just in case. */

 #ifdef __VMS
 #include <ssdef.h>
 /* These two includes came from [2]. */
 #include descrip
 #include lib$routines
 /* void vms_setsymbol( char *, char *, int ); Original code from [1]. */
 #endif

 /* old VC and older compilers don't support %td or %zu, and even some that
 claim to be C99 don't support it (hence DISABLE_PERCENT_ZT). */

 #if defined(DISABLE_PERCENT_ZT) || (defined(_MSC_VER) && (_MSC_VER < 1800)) || \
   (!defined(_MSC_VER) && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)))
 #ifdef _WIN64
 #define PTR_FORM "lld"
 #define SIZ_FORM "llu"
 #else
 #define PTR_FORM "ld"
 #define SIZ_FORM "lu"
 #endif
 #else
 #define PTR_FORM "td"
 #define SIZ_FORM "zu"
 #endif

 /* ------------------End of system-specific definitions -------------------- */

 /* Glueing macros that are used in several places below. */

 #define glue(a,b) a##b
 #define G(a,b) glue(a,b)

 /* Miscellaneous parameters and manifests */

 #ifndef CLOCKS_PER_SEC
 #ifdef CLK_TCK
 #define CLOCKS_PER_SEC CLK_TCK
 #else
 #define CLOCKS_PER_SEC 100
 #endif
 #endif

 #define CFORE_UNSET UINT32_MAX    /* Unset value for startend/cfail/cerror fields */
 #define CONVERT_UNSET UINT32_MAX  /* Unset value for convert_type field */
 #define DFA_WS_DIMENSION 1000     /* Size of DFA workspace */
 #define DEFAULT_OVECCOUNT 15      /* Default ovector count */
 #define JUNK_OFFSET 0xdeadbeef    /* For initializing ovector */
 #define LOCALESIZE 32             /* Size of locale name */
 #define LOOPREPEAT 500000         /* Default loop count for timing */
 #define MALLOCLISTSIZE 20         /* For remembering mallocs */
 #define PARENS_NEST_DEFAULT 220   /* Default parentheses nest limit */
 #define PATSTACKSIZE 20           /* Pattern stack for save/restore testing */
 #define REPLACE_MODSIZE 100       /* Field for reading 8-bit replacement */
 #define VERSION_SIZE 64           /* Size of buffer for the version strings */

 /* Default JIT compile options */

 #define JIT_DEFAULT (PCRE2_JIT_COMPLETE|\
                      PCRE2_JIT_PARTIAL_SOFT|\
                      PCRE2_JIT_PARTIAL_HARD)

 /* Make sure the buffer into which replacement strings are copied is big enough
 to hold them as 32-bit code units. */

 #define REPLACE_BUFFSIZE 1024   /* This is a byte value */

 /* Execution modes */

 #define PCRE8_MODE   8
 #define PCRE16_MODE 16
 #define PCRE32_MODE 32

 /* Processing returns */

 enum { PR_OK, PR_SKIP, PR_ABEND };

 /* The macro PRINTABLE determines whether to print an output character as-is or
 as a hex value when showing compiled patterns. is We use it in cases when the
 locale has not been explicitly changed, so as to get consistent output from
 systems that differ in their output from isprint() even in the "C" locale. */

 #ifdef EBCDIC
 #define PRINTABLE(c) ((c) >= 64 && (c) < 255)
 #else
 #define PRINTABLE(c) ((c) >= 32 && (c) < 127)
 #endif

 #define PRINTOK(c) ((use_tables != NULL && c < 256)? isprint(c) : PRINTABLE(c))

 /* We have to include some of the library source files because we need
 to use some of the macros, internal structure definitions, and other internal
 values - pcre2test has "inside information" compared to an application program
 that strictly follows the PCRE2 API.

 Before including pcre2_internal.h we define PRIV so that it does not get
 defined therein. This ensures that PRIV names in the included files do not
 clash with those in the libraries. Also, although pcre2_internal.h does itself
 include pcre2.h, we explicitly include it beforehand, along with pcre2posix.h,
 so that the PCRE2_EXP_xxx macros get set appropriately for an application, not
 for building the library. */

 #define PRIV(name) name
 #define PCRE2_CODE_UNIT_WIDTH 0
 #include "pcre2.h"
 #include "pcre2posix.h"
 #include "pcre2_internal.h"

 /* We need access to some of the data tables that PCRE2 uses. Defining
 PCRE2_PCRETEST makes some minor changes in the files. The previous definition
 of PRIV avoids name clashes. */

 #define PCRE2_PCRE2TEST
 #include "pcre2_tables.c"
 #include "pcre2_ucd.c"

 /* 32-bit integer values in the input are read by strtoul() or strtol(). The
 check needed for overflow depends on whether long ints are in fact longer than
 ints. They are defined not to be shorter. */

 #if ULONG_MAX > UINT32_MAX
 #define U32OVERFLOW(x) (x > UINT32_MAX)
 #else
 #define U32OVERFLOW(x) (x == UINT32_MAX)
 #endif

 #if LONG_MAX > INT32_MAX
 #define S32OVERFLOW(x) (x > INT32_MAX || x < INT32_MIN)
 #else
 #define S32OVERFLOW(x) (x == INT32_MAX || x == INT32_MIN)
 #endif

 /* When PCRE2_CODE_UNIT_WIDTH is zero, pcre2_internal.h does not include
 pcre2_intmodedep.h, which is where mode-dependent macros and structures are
 defined. We can now include it for each supported code unit width. Because
 PCRE2_CODE_UNIT_WIDTH was defined as zero before including pcre2.h, it will
 have left PCRE2_SUFFIX defined as a no-op. We must re-define it appropriately
 while including these files, and then restore it to a no-op. Because LINK_SIZE
 may be changed in 16-bit mode and forced to 1 in 32-bit mode, the order of
 these inclusions should not be changed. */

 #undef PCRE2_SUFFIX
 #undef PCRE2_CODE_UNIT_WIDTH

 #ifdef   SUPPORT_PCRE2_8
 #define  PCRE2_CODE_UNIT_WIDTH 8
 #define  PCRE2_SUFFIX(a) G(a,8)
 #include "pcre2_intmodedep.h"
 #include "pcre2_printint.c"
 #undef   PCRE2_CODE_UNIT_WIDTH
 #undef   PCRE2_SUFFIX
 #endif   /* SUPPORT_PCRE2_8 */

 #ifdef   SUPPORT_PCRE2_16
 #define  PCRE2_CODE_UNIT_WIDTH 16
 #define  PCRE2_SUFFIX(a) G(a,16)
 #include "pcre2_intmodedep.h"
 #include "pcre2_printint.c"
 #undef   PCRE2_CODE_UNIT_WIDTH
 #undef   PCRE2_SUFFIX
 #endif   /* SUPPORT_PCRE2_16 */

 #ifdef   SUPPORT_PCRE2_32
 #define  PCRE2_CODE_UNIT_WIDTH 32
 #define  PCRE2_SUFFIX(a) G(a,32)
 #include "pcre2_intmodedep.h"
 #include "pcre2_printint.c"
 #undef   PCRE2_CODE_UNIT_WIDTH
 #undef   PCRE2_SUFFIX
 #endif   /* SUPPORT_PCRE2_32 */

 #define PCRE2_SUFFIX(a) a

 /* We need to be able to check input text for UTF-8 validity, whatever code
 widths are actually available, because the input to pcre2test is always in
 8-bit code units. So we include the UTF validity checking function for 8-bit
 code units. */

 extern int valid_utf(PCRE2_SPTR8, PCRE2_SIZE, PCRE2_SIZE *);

 #define  PCRE2_CODE_UNIT_WIDTH 8
 #undef   PCRE2_SPTR
 #define  PCRE2_SPTR PCRE2_SPTR8
 #include "pcre2_valid_utf.c"
 #undef   PCRE2_CODE_UNIT_WIDTH
 #undef   PCRE2_SPTR

 /* If we have 8-bit support, default to it; if there is also 16-or 32-bit
 support, it can be selected by a command-line option. If there is no 8-bit
 support, there must be 16-bit or 32-bit support, so default to one of them. The
 config function, JIT stack, contexts, and version string are the same in all
 modes, so use the form of the first that is available. */

 #if defined SUPPORT_PCRE2_8
 #define DEFAULT_TEST_MODE PCRE8_MODE
 #define VERSION_TYPE PCRE2_UCHAR8
 #define PCRE2_CONFIG pcre2_config_8
 #define PCRE2_JIT_STACK pcre2_jit_stack_8
 #define PCRE2_REAL_GENERAL_CONTEXT pcre2_real_general_context_8
 #define PCRE2_REAL_COMPILE_CONTEXT pcre2_real_compile_context_8
 #define PCRE2_REAL_CONVERT_CONTEXT pcre2_real_convert_context_8
 #define PCRE2_REAL_MATCH_CONTEXT pcre2_real_match_context_8

 #elif defined SUPPORT_PCRE2_16
 #define DEFAULT_TEST_MODE PCRE16_MODE
 #define VERSION_TYPE PCRE2_UCHAR16
 #define PCRE2_CONFIG pcre2_config_16
 #define PCRE2_JIT_STACK pcre2_jit_stack_16
 #define PCRE2_REAL_GENERAL_CONTEXT pcre2_real_general_context_16
 #define PCRE2_REAL_COMPILE_CONTEXT pcre2_real_compile_context_16
 #define PCRE2_REAL_CONVERT_CONTEXT pcre2_real_convert_context_16
 #define PCRE2_REAL_MATCH_CONTEXT pcre2_real_match_context_16

 #elif defined SUPPORT_PCRE2_32
 #define DEFAULT_TEST_MODE PCRE32_MODE
 #define VERSION_TYPE PCRE2_UCHAR32
 #define PCRE2_CONFIG pcre2_config_32
 #define PCRE2_JIT_STACK pcre2_jit_stack_32
 #define PCRE2_REAL_GENERAL_CONTEXT pcre2_real_general_context_32
 #define PCRE2_REAL_COMPILE_CONTEXT pcre2_real_compile_context_32
 #define PCRE2_REAL_CONVERT_CONTEXT pcre2_real_convert_context_32
 #define PCRE2_REAL_MATCH_CONTEXT pcre2_real_match_context_32
 #endif

 /* ------------- Structure and table for handling #-commands ------------- */

 typedef struct cmdstruct {
   const char *name;
   int  value;
 } cmdstruct;

 enum { CMD_FORBID_UTF, CMD_LOAD, CMD_LOADTABLES, CMD_NEWLINE_DEFAULT,
   CMD_PATTERN, CMD_PERLTEST, CMD_POP, CMD_POPCOPY, CMD_SAVE, CMD_SUBJECT,
   CMD_UNKNOWN };

 static cmdstruct cmdlist[] = {
   { "forbid_utf",      CMD_FORBID_UTF },
   { "load",            CMD_LOAD },
   { "loadtables",      CMD_LOADTABLES },
   { "newline_default", CMD_NEWLINE_DEFAULT },
   { "pattern",         CMD_PATTERN },
   { "perltest",        CMD_PERLTEST },
   { "pop",             CMD_POP },
   { "popcopy",         CMD_POPCOPY },
   { "save",            CMD_SAVE },
   { "subject",         CMD_SUBJECT }};

 #define cmdlistcount (sizeof(cmdlist)/sizeof(cmdstruct))

 /* ------------- Structures and tables for handling modifiers -------------- */

 /* Table of names for newline types. Must be kept in step with the definitions
 of PCRE2_NEWLINE_xx in pcre2.h. */

 static const char *newlines[] = {
   "DEFAULT", "CR", "LF", "CRLF", "ANY", "ANYCRLF", "NUL" };

 /* Structure and table for handling pattern conversion types. */

 typedef struct convertstruct {
   const char *name;
   uint32_t option;
 } convertstruct;

 static convertstruct convertlist[] = {
   { "glob",                   PCRE2_CONVERT_GLOB },
   { "glob_no_starstar",       PCRE2_CONVERT_GLOB_NO_STARSTAR },
   { "glob_no_wild_separator", PCRE2_CONVERT_GLOB_NO_WILD_SEPARATOR },
   { "posix_basic",            PCRE2_CONVERT_POSIX_BASIC },
   { "posix_extended",         PCRE2_CONVERT_POSIX_EXTENDED },
   { "unset",                  CONVERT_UNSET }};

 #define convertlistcount (sizeof(convertlist)/sizeof(convertstruct))

 /* Modifier types and applicability */

 enum { MOD_CTC,    /* Applies to a compile context */
        MOD_CTM,    /* Applies to a match context */
        MOD_PAT,    /* Applies to a pattern */
        MOD_PATP,   /* Ditto, OK for Perl test */
        MOD_DAT,    /* Applies to a data line */
        MOD_DATP,   /* Ditto, OK for Perl test */
        MOD_PD,     /* Applies to a pattern or a data line */
        MOD_PDP,    /* As MOD_PD, OK for Perl test */
        MOD_PND,    /* As MOD_PD, but not for a default pattern */
        MOD_PNDP,   /* As MOD_PND, OK for Perl test */
        MOD_CHR,    /* Is a single character */
        MOD_CON,    /* Is a "convert" type/options list */
        MOD_CTL,    /* Is a control bit */
        MOD_BSR,    /* Is a BSR value */
        MOD_IN2,    /* Is one or two unsigned integers */
        MOD_INS,    /* Is a signed integer */
        MOD_INT,    /* Is an unsigned integer */
        MOD_IND,    /* Is an unsigned integer, but no value => default */
        MOD_NL,     /* Is a newline value */
        MOD_NN,     /* Is a number or a name; more than one may occur */
        MOD_OPT,    /* Is an option bit */
        MOD_SIZ,    /* Is a PCRE2_SIZE value */
        MOD_STR };  /* Is a string */

 /* Control bits. Some apply to compiling, some to matching, but some can be set
 either on a pattern or a data line, so they must all be distinct. There are now
 so many of them that they are split into two fields. */

 #define CTL_AFTERTEXT                    0x00000001u
 #define CTL_ALLAFTERTEXT                 0x00000002u
 #define CTL_ALLCAPTURES                  0x00000004u
 #define CTL_ALLUSEDTEXT                  0x00000008u
 #define CTL_ALTGLOBAL                    0x00000010u
 #define CTL_BINCODE                      0x00000020u
 #define CTL_CALLOUT_CAPTURE              0x00000040u
 #define CTL_CALLOUT_INFO                 0x00000080u
 #define CTL_CALLOUT_NONE                 0x00000100u
 #define CTL_DFA                          0x00000200u
 #define CTL_EXPAND                       0x00000400u
 #define CTL_FINDLIMITS                   0x00000800u
 #define CTL_FINDLIMITS_NOHEAP            0x00001000u
 #define CTL_FULLBINCODE                  0x00002000u
 #define CTL_GETALL                       0x00004000u
 #define CTL_GLOBAL                       0x00008000u
 #define CTL_HEXPAT                       0x00010000u  /* Same word as USE_LENGTH */
 #define CTL_INFO                         0x00020000u
 #define CTL_JITFAST                      0x00040000u
 #define CTL_JITVERIFY                    0x00080000u
 #define CTL_MARK                         0x00100000u
 #define CTL_MEMORY                       0x00200000u
 #define CTL_NULLCONTEXT                  0x00400000u
 #define CTL_POSIX                        0x00800000u
 #define CTL_POSIX_NOSUB                  0x01000000u
 #define CTL_PUSH                         0x02000000u  /* These three must be */
 #define CTL_PUSHCOPY                     0x04000000u  /*   all in the same */
 #define CTL_PUSHTABLESCOPY               0x08000000u  /*     word. */
 #define CTL_STARTCHAR                    0x10000000u
 #define CTL_USE_LENGTH                   0x20000000u  /* Same word as HEXPAT */
 #define CTL_UTF8_INPUT                   0x40000000u
 #define CTL_ZERO_TERMINATE               0x80000000u

 /* Combinations */

 #define CTL_DEBUG            (CTL_FULLBINCODE|CTL_INFO)  /* For setting */
 #define CTL_ANYINFO          (CTL_DEBUG|CTL_BINCODE|CTL_CALLOUT_INFO)
 #define CTL_ANYGLOB          (CTL_ALTGLOBAL|CTL_GLOBAL)

 /* Second control word */

 #define CTL2_SUBSTITUTE_CALLOUT          0x00000001u
 #define CTL2_SUBSTITUTE_EXTENDED         0x00000002u
 #define CTL2_SUBSTITUTE_LITERAL          0x00000004u
 #define CTL2_SUBSTITUTE_MATCHED          0x00000008u
 #define CTL2_SUBSTITUTE_OVERFLOW_LENGTH  0x00000010u
 #define CTL2_SUBSTITUTE_REPLACEMENT_ONLY 0x00000020u
 #define CTL2_SUBSTITUTE_UNKNOWN_UNSET    0x00000040u
 #define CTL2_SUBSTITUTE_UNSET_EMPTY      0x00000080u
 #define CTL2_SUBJECT_LITERAL             0x00000100u
 #define CTL2_CALLOUT_NO_WHERE            0x00000200u
 #define CTL2_CALLOUT_EXTRA               0x00000400u
 #define CTL2_ALLVECTOR                   0x00000800u
 #define CTL2_NULL_SUBJECT                0x00001000u
 #define CTL2_NULL_REPLACEMENT            0x00002000u
 #define CTL2_FRAMESIZE                   0x00004000u

 #define CTL2_NL_SET                      0x40000000u  /* Informational */
 #define CTL2_BSR_SET                     0x80000000u  /* Informational */

 /* These are the matching controls that may be set either on a pattern or on a
 data line. They are copied from the pattern controls as initial settings for
 data line controls. Note that CTL_MEMORY is not included here, because it does
 different things in the two cases. */

 #define CTL_ALLPD  (CTL_AFTERTEXT|\
                     CTL_ALLAFTERTEXT|\
                     CTL_ALLCAPTURES|\
                     CTL_ALLUSEDTEXT|\
                     CTL_ALTGLOBAL|\
                     CTL_GLOBAL|\
                     CTL_MARK|\
                     CTL_STARTCHAR|\
                     CTL_UTF8_INPUT)

 #define CTL2_ALLPD (CTL2_SUBSTITUTE_CALLOUT|\
                     CTL2_SUBSTITUTE_EXTENDED|\
                     CTL2_SUBSTITUTE_LITERAL|\
                     CTL2_SUBSTITUTE_MATCHED|\
                     CTL2_SUBSTITUTE_OVERFLOW_LENGTH|\
                     CTL2_SUBSTITUTE_REPLACEMENT_ONLY|\
                     CTL2_SUBSTITUTE_UNKNOWN_UNSET|\
                     CTL2_SUBSTITUTE_UNSET_EMPTY|\
                     CTL2_ALLVECTOR)

 /* Structures for holding modifier information for patterns and subject strings
 (data). Fields containing modifiers that can be set either for a pattern or a
 subject must be at the start and in the same order in both cases so that the
 same offset in the big table below works for both. */

 typedef struct patctl {       /* Structure for pattern modifiers. */
   uint32_t  options;          /* Must be in same position as datctl */
   uint32_t  control;          /* Must be in same position as datctl */
   uint32_t  control2;         /* Must be in same position as datctl */
   uint32_t  jitstack;         /* Must be in same position as datctl */
    uint8_t  replacement[REPLACE_MODSIZE];  /* So must this */
   uint32_t  substitute_skip;  /* Must be in same position as patctl */
   uint32_t  substitute_stop;  /* Must be in same position as patctl */
   uint32_t  jit;
   uint32_t  stackguard_test;
   uint32_t  tables_id;
   uint32_t  convert_type;
   uint32_t  convert_length;
   uint32_t  convert_glob_escape;
   uint32_t  convert_glob_separator;
   uint32_t  regerror_buffsize;
    uint8_t  locale[LOCALESIZE];
 } patctl;

 #define MAXCPYGET 10
 #define LENCPYGET 64

 typedef struct datctl {       /* Structure for data line modifiers. */
   uint32_t  options;          /* Must be in same position as patctl */
   uint32_t  control;          /* Must be in same position as patctl */
   uint32_t  control2;         /* Must be in same position as patctl */
   uint32_t  jitstack;         /* Must be in same position as patctl */
    uint8_t  replacement[REPLACE_MODSIZE];  /* So must this */
   uint32_t  substitute_skip;  /* Must be in same position as patctl */
   uint32_t  substitute_stop;  /* Must be in same position as patctl */
   uint32_t  startend[2];
   uint32_t  cerror[2];
   uint32_t  cfail[2];
    int32_t  callout_data;
    int32_t  copy_numbers[MAXCPYGET];
    int32_t  get_numbers[MAXCPYGET];
   uint32_t  oveccount;
   uint32_t  offset;
   uint8_t   copy_names[LENCPYGET];
   uint8_t   get_names[LENCPYGET];
 } datctl;

 /* Ids for which context to modify. */

 enum { CTX_PAT,            /* Active pattern context */
        CTX_POPPAT,         /* Ditto, for a popped pattern */
        CTX_DEFPAT,         /* Default pattern context */
        CTX_DAT,            /* Active data (match) context */
        CTX_DEFDAT };       /* Default data (match) context */

 /* Macros to simplify the big table below. */

 #define CO(name) offsetof(PCRE2_REAL_COMPILE_CONTEXT, name)
 #define MO(name) offsetof(PCRE2_REAL_MATCH_CONTEXT, name)
 #define PO(name) offsetof(patctl, name)
 #define PD(name) PO(name)
 #define DO(name) offsetof(datctl, name)

 /* Table of all long-form modifiers. Must be in collating sequence of modifier
 name because it is searched by binary chop. */

 typedef struct modstruct {
   const char   *name;
   uint16_t      which;
   uint16_t      type;
   uint32_t      value;
   PCRE2_SIZE    offset;
 } modstruct;

 static modstruct modlist[] = {
   { "aftertext",                   MOD_PNDP, MOD_CTL, CTL_AFTERTEXT,              PO(control) },
   { "allaftertext",                MOD_PNDP, MOD_CTL, CTL_ALLAFTERTEXT,           PO(control) },
   { "allcaptures",                 MOD_PND,  MOD_CTL, CTL_ALLCAPTURES,            PO(control) },
   { "allow_empty_class",           MOD_PAT,  MOD_OPT, PCRE2_ALLOW_EMPTY_CLASS,    PO(options) },
   { "allow_lookaround_bsk",        MOD_CTC,  MOD_OPT, PCRE2_EXTRA_ALLOW_LOOKAROUND_BSK, CO(extra_options) },
   { "allow_surrogate_escapes",     MOD_CTC,  MOD_OPT, PCRE2_EXTRA_ALLOW_SURROGATE_ESCAPES, CO(extra_options) },
   { "allusedtext",                 MOD_PNDP, MOD_CTL, CTL_ALLUSEDTEXT,            PO(control) },
   { "allvector",                   MOD_PND,  MOD_CTL, CTL2_ALLVECTOR,             PO(control2) },
   { "alt_bsux",                    MOD_PAT,  MOD_OPT, PCRE2_ALT_BSUX,             PO(options) },
   { "alt_circumflex",              MOD_PAT,  MOD_OPT, PCRE2_ALT_CIRCUMFLEX,       PO(options) },
   { "alt_verbnames",               MOD_PAT,  MOD_OPT, PCRE2_ALT_VERBNAMES,        PO(options) },
   { "altglobal",                   MOD_PND,  MOD_CTL, CTL_ALTGLOBAL,              PO(control) },
   { "anchored",                    MOD_PD,   MOD_OPT, PCRE2_ANCHORED,             PD(options) },
   { "auto_callout",                MOD_PAT,  MOD_OPT, PCRE2_AUTO_CALLOUT,         PO(options) },
   { "bad_escape_is_literal",       MOD_CTC,  MOD_OPT, PCRE2_EXTRA_BAD_ESCAPE_IS_LITERAL, CO(extra_options) },
   { "bincode",                     MOD_PAT,  MOD_CTL, CTL_BINCODE,                PO(control) },
   { "bsr",                         MOD_CTC,  MOD_BSR, 0,                          CO(bsr_convention) },
   { "callout_capture",             MOD_DAT,  MOD_CTL, CTL_CALLOUT_CAPTURE,        DO(control) },
   { "callout_data",                MOD_DAT,  MOD_INS, 0,                          DO(callout_data) },
   { "callout_error",               MOD_DAT,  MOD_IN2, 0,                          DO(cerror) },
   { "callout_extra",               MOD_DAT,  MOD_CTL, CTL2_CALLOUT_EXTRA,         DO(control2) },
   { "callout_fail",                MOD_DAT,  MOD_IN2, 0,                          DO(cfail) },
   { "callout_info",                MOD_PAT,  MOD_CTL, CTL_CALLOUT_INFO,           PO(control) },
   { "callout_no_where",            MOD_DAT,  MOD_CTL, CTL2_CALLOUT_NO_WHERE,      DO(control2) },
   { "callout_none",                MOD_DAT,  MOD_CTL, CTL_CALLOUT_NONE,           DO(control) },
   { "caseless",                    MOD_PATP, MOD_OPT, PCRE2_CASELESS,             PO(options) },
   { "convert",                     MOD_PAT,  MOD_CON, 0,                          PO(convert_type) },
   { "convert_glob_escape",         MOD_PAT,  MOD_CHR, 0,                          PO(convert_glob_escape) },
   { "convert_glob_separator",      MOD_PAT,  MOD_CHR, 0,                          PO(convert_glob_separator) },
   { "convert_length",              MOD_PAT,  MOD_INT, 0,                          PO(convert_length) },
   { "copy",                        MOD_DAT,  MOD_NN,  DO(copy_numbers),           DO(copy_names) },
   { "copy_matched_subject",        MOD_DAT,  MOD_OPT, PCRE2_COPY_MATCHED_SUBJECT, DO(options) },
   { "debug",                       MOD_PAT,  MOD_CTL, CTL_DEBUG,                  PO(control) },
   { "depth_limit",                 MOD_CTM,  MOD_INT, 0,                          MO(depth_limit) },
   { "dfa",                         MOD_DAT,  MOD_CTL, CTL_DFA,                    DO(control) },
   { "dfa_restart",                 MOD_DAT,  MOD_OPT, PCRE2_DFA_RESTART,          DO(options) },
   { "dfa_shortest",                MOD_DAT,  MOD_OPT, PCRE2_DFA_SHORTEST,         DO(options) },
   { "dollar_endonly",              MOD_PAT,  MOD_OPT, PCRE2_DOLLAR_ENDONLY,       PO(options) },
   { "dotall",                      MOD_PATP, MOD_OPT, PCRE2_DOTALL,               PO(options) },
   { "dupnames",                    MOD_PATP, MOD_OPT, PCRE2_DUPNAMES,             PO(options) },
   { "endanchored",                 MOD_PD,   MOD_OPT, PCRE2_ENDANCHORED,          PD(options) },
   { "escaped_cr_is_lf",            MOD_CTC,  MOD_OPT, PCRE2_EXTRA_ESCAPED_CR_IS_LF, CO(extra_options) },
   { "expand",                      MOD_PAT,  MOD_CTL, CTL_EXPAND,                 PO(control) },
   { "extended",                    MOD_PATP, MOD_OPT, PCRE2_EXTENDED,             PO(options) },
   { "extended_more",               MOD_PATP, MOD_OPT, PCRE2_EXTENDED_MORE,        PO(options) },
   { "extra_alt_bsux",              MOD_CTC,  MOD_OPT, PCRE2_EXTRA_ALT_BSUX,       CO(extra_options) },
   { "find_limits",                 MOD_DAT,  MOD_CTL, CTL_FINDLIMITS,             DO(control) },
   { "find_limits_noheap",          MOD_DAT,  MOD_CTL, CTL_FINDLIMITS_NOHEAP,      DO(control) },
   { "firstline",                   MOD_PAT,  MOD_OPT, PCRE2_FIRSTLINE,            PO(options) },
   { "framesize",                   MOD_PAT,  MOD_CTL, CTL2_FRAMESIZE,             PO(control2) },
   { "fullbincode",                 MOD_PAT,  MOD_CTL, CTL_FULLBINCODE,            PO(control) },
   { "get",                         MOD_DAT,  MOD_NN,  DO(get_numbers),            DO(get_names) },
   { "getall",                      MOD_DAT,  MOD_CTL, CTL_GETALL,                 DO(control) },
   { "global",                      MOD_PNDP, MOD_CTL, CTL_GLOBAL,                 PO(control) },
   { "heap_limit",                  MOD_CTM,  MOD_INT, 0,                          MO(heap_limit) },
   { "hex",                         MOD_PAT,  MOD_CTL, CTL_HEXPAT,                 PO(control) },
   { "info",                        MOD_PAT,  MOD_CTL, CTL_INFO,                   PO(control) },
   { "jit",                         MOD_PAT,  MOD_IND, 7,                          PO(jit) },
   { "jitfast",                     MOD_PAT,  MOD_CTL, CTL_JITFAST,                PO(control) },
   { "jitstack",                    MOD_PNDP, MOD_INT, 0,                          PO(jitstack) },
   { "jitverify",                   MOD_PAT,  MOD_CTL, CTL_JITVERIFY,              PO(control) },
   { "literal",                     MOD_PAT,  MOD_OPT, PCRE2_LITERAL,              PO(options) },
   { "locale",                      MOD_PAT,  MOD_STR, LOCALESIZE,                 PO(locale) },
   { "mark",                        MOD_PNDP, MOD_CTL, CTL_MARK,                   PO(control) },
   { "match_invalid_utf",           MOD_PAT,  MOD_OPT, PCRE2_MATCH_INVALID_UTF,    PO(options) },
   { "match_limit",                 MOD_CTM,  MOD_INT, 0,                          MO(match_limit) },
   { "match_line",                  MOD_CTC,  MOD_OPT, PCRE2_EXTRA_MATCH_LINE,     CO(extra_options) },
   { "match_unset_backref",         MOD_PAT,  MOD_OPT, PCRE2_MATCH_UNSET_BACKREF,  PO(options) },
   { "match_word",                  MOD_CTC,  MOD_OPT, PCRE2_EXTRA_MATCH_WORD,     CO(extra_options) },
   { "max_pattern_length",          MOD_CTC,  MOD_SIZ, 0,                          CO(max_pattern_length) },
   { "memory",                      MOD_PD,   MOD_CTL, CTL_MEMORY,                 PD(control) },
   { "multiline",                   MOD_PATP, MOD_OPT, PCRE2_MULTILINE,            PO(options) },
   { "never_backslash_c",           MOD_PAT,  MOD_OPT, PCRE2_NEVER_BACKSLASH_C,    PO(options) },
   { "never_ucp",                   MOD_PAT,  MOD_OPT, PCRE2_NEVER_UCP,            PO(options) },
   { "never_utf",                   MOD_PAT,  MOD_OPT, PCRE2_NEVER_UTF,            PO(options) },
   { "newline",                     MOD_CTC,  MOD_NL,  0,                          CO(newline_convention) },
   { "no_auto_capture",             MOD_PAT,  MOD_OPT, PCRE2_NO_AUTO_CAPTURE,      PO(options) },
   { "no_auto_possess",             MOD_PATP, MOD_OPT, PCRE2_NO_AUTO_POSSESS,      PO(options) },
   { "no_dotstar_anchor",           MOD_PAT,  MOD_OPT, PCRE2_NO_DOTSTAR_ANCHOR,    PO(options) },
   { "no_jit",                      MOD_DATP, MOD_OPT, PCRE2_NO_JIT,               DO(options) },
   { "no_start_optimize",           MOD_PATP, MOD_OPT, PCRE2_NO_START_OPTIMIZE,    PO(options) },
   { "no_utf_check",                MOD_PD,   MOD_OPT, PCRE2_NO_UTF_CHECK,         PD(options) },
   { "notbol",                      MOD_DAT,  MOD_OPT, PCRE2_NOTBOL,               DO(options) },
   { "notempty",                    MOD_DAT,  MOD_OPT, PCRE2_NOTEMPTY,             DO(options) },
   { "notempty_atstart",            MOD_DAT,  MOD_OPT, PCRE2_NOTEMPTY_ATSTART,     DO(options) },
   { "noteol",                      MOD_DAT,  MOD_OPT, PCRE2_NOTEOL,               DO(options) },
   { "null_context",                MOD_PD,   MOD_CTL, CTL_NULLCONTEXT,            PO(control) },
   { "null_replacement",            MOD_DAT,  MOD_CTL, CTL2_NULL_REPLACEMENT,      DO(control2) },
   { "null_subject",                MOD_DAT,  MOD_CTL, CTL2_NULL_SUBJECT,          DO(control2) },
   { "offset",                      MOD_DAT,  MOD_INT, 0,                          DO(offset) },
   { "offset_limit",                MOD_CTM,  MOD_SIZ, 0,                          MO(offset_limit)},
   { "ovector",                     MOD_DAT,  MOD_INT, 0,                          DO(oveccount) },
   { "parens_nest_limit",           MOD_CTC,  MOD_INT, 0,                          CO(parens_nest_limit) },
   { "partial_hard",                MOD_DAT,  MOD_OPT, PCRE2_PARTIAL_HARD,         DO(options) },
   { "partial_soft",                MOD_DAT,  MOD_OPT, PCRE2_PARTIAL_SOFT,         DO(options) },
   { "ph",                          MOD_DAT,  MOD_OPT, PCRE2_PARTIAL_HARD,         DO(options) },
   { "posix",                       MOD_PAT,  MOD_CTL, CTL_POSIX,                  PO(control) },
   { "posix_nosub",                 MOD_PAT,  MOD_CTL, CTL_POSIX|CTL_POSIX_NOSUB,  PO(control) },
   { "posix_startend",              MOD_DAT,  MOD_IN2, 0,                          DO(startend) },
   { "ps",                          MOD_DAT,  MOD_OPT, PCRE2_PARTIAL_SOFT,         DO(options) },
   { "push",                        MOD_PAT,  MOD_CTL, CTL_PUSH,                   PO(control) },
   { "pushcopy",                    MOD_PAT,  MOD_CTL, CTL_PUSHCOPY,               PO(control) },
   { "pushtablescopy",              MOD_PAT,  MOD_CTL, CTL_PUSHTABLESCOPY,         PO(control) },
   { "recursion_limit",             MOD_CTM,  MOD_INT, 0,                          MO(depth_limit) },  /* Obsolete synonym */
   { "regerror_buffsize",           MOD_PAT,  MOD_INT, 0,                          PO(regerror_buffsize) },
   { "replace",                     MOD_PND,  MOD_STR, REPLACE_MODSIZE,            PO(replacement) },
   { "stackguard",                  MOD_PAT,  MOD_INT, 0,                          PO(stackguard_test) },
   { "startchar",                   MOD_PND,  MOD_CTL, CTL_STARTCHAR,              PO(control) },
   { "startoffset",                 MOD_DAT,  MOD_INT, 0,                          DO(offset) },
   { "subject_literal",             MOD_PATP, MOD_CTL, CTL2_SUBJECT_LITERAL,       PO(control2) },
   { "substitute_callout",          MOD_PND,  MOD_CTL, CTL2_SUBSTITUTE_CALLOUT,    PO(control2) },
   { "substitute_extended",         MOD_PND,  MOD_CTL, CTL2_SUBSTITUTE_EXTENDED,   PO(control2) },
   { "substitute_literal",          MOD_PND,  MOD_CTL, CTL2_SUBSTITUTE_LITERAL,    PO(control2) },
   { "substitute_matched",          MOD_PND,  MOD_CTL, CTL2_SUBSTITUTE_MATCHED,    PO(control2) },
   { "substitute_overflow_length",  MOD_PND,  MOD_CTL, CTL2_SUBSTITUTE_OVERFLOW_LENGTH, PO(control2) },
   { "substitute_replacement_only", MOD_PND,  MOD_CTL, CTL2_SUBSTITUTE_REPLACEMENT_ONLY, PO(control2) },
   { "substitute_skip",             MOD_PND,  MOD_INT, 0,                          PO(substitute_skip) },
   { "substitute_stop",             MOD_PND,  MOD_INT, 0,                          PO(substitute_stop) },
   { "substitute_unknown_unset",    MOD_PND,  MOD_CTL, CTL2_SUBSTITUTE_UNKNOWN_UNSET, PO(control2) },
   { "substitute_unset_empty",      MOD_PND,  MOD_CTL, CTL2_SUBSTITUTE_UNSET_EMPTY, PO(control2) },
   { "tables",                      MOD_PAT,  MOD_INT, 0,                          PO(tables_id) },
   { "ucp",                         MOD_PATP, MOD_OPT, PCRE2_UCP,                  PO(options) },
   { "ungreedy",                    MOD_PAT,  MOD_OPT, PCRE2_UNGREEDY,             PO(options) },
   { "use_length",                  MOD_PAT,  MOD_CTL, CTL_USE_LENGTH,             PO(control) },
   { "use_offset_limit",            MOD_PAT,  MOD_OPT, PCRE2_USE_OFFSET_LIMIT,     PO(options) },
   { "utf",                         MOD_PATP, MOD_OPT, PCRE2_UTF,                  PO(options) },
   { "utf8_input",                  MOD_PAT,  MOD_CTL, CTL_UTF8_INPUT,             PO(control) },
   { "zero_terminate",              MOD_DAT,  MOD_CTL, CTL_ZERO_TERMINATE,         DO(control) }
 };

 #define MODLISTCOUNT sizeof(modlist)/sizeof(modstruct)

 /* Controls and options that are supported for use with the POSIX interface. */

 #define POSIX_SUPPORTED_COMPILE_OPTIONS ( \
   PCRE2_CASELESS|PCRE2_DOTALL|PCRE2_LITERAL|PCRE2_MULTILINE|PCRE2_UCP| \
   PCRE2_UTF|PCRE2_UNGREEDY)

 #define POSIX_SUPPORTED_COMPILE_EXTRA_OPTIONS (0)

 #define POSIX_SUPPORTED_COMPILE_CONTROLS ( \
   CTL_AFTERTEXT|CTL_ALLAFTERTEXT|CTL_EXPAND|CTL_HEXPAT|CTL_POSIX| \
   CTL_POSIX_NOSUB|CTL_USE_LENGTH)

 #define POSIX_SUPPORTED_COMPILE_CONTROLS2 (0)

 #define POSIX_SUPPORTED_MATCH_OPTIONS ( \
   PCRE2_NOTBOL|PCRE2_NOTEMPTY|PCRE2_NOTEOL)

 #define POSIX_SUPPORTED_MATCH_CONTROLS  (CTL_AFTERTEXT|CTL_ALLAFTERTEXT)
 #define POSIX_SUPPORTED_MATCH_CONTROLS2 (CTL2_NULL_SUBJECT)

 /* Control bits that are not ignored with 'push'. */

 #define PUSH_SUPPORTED_COMPILE_CONTROLS ( \
   CTL_BINCODE|CTL_CALLOUT_INFO|CTL_FULLBINCODE|CTL_HEXPAT|CTL_INFO| \
   CTL_JITVERIFY|CTL_MEMORY|CTL_PUSH|CTL_PUSHCOPY| \
   CTL_PUSHTABLESCOPY|CTL_USE_LENGTH)

 #define PUSH_SUPPORTED_COMPILE_CONTROLS2 (CTL2_BSR_SET|CTL2_FRAMESIZE| \
   CTL2_NL_SET)

 /* Controls that apply only at compile time with 'push'. */

 #define PUSH_COMPILE_ONLY_CONTROLS   CTL_JITVERIFY
 #define PUSH_COMPILE_ONLY_CONTROLS2  (0)

 /* Controls that are forbidden with #pop or #popcopy. */

 #define NOTPOP_CONTROLS (CTL_HEXPAT|CTL_POSIX|CTL_POSIX_NOSUB|CTL_PUSH| \
   CTL_PUSHCOPY|CTL_PUSHTABLESCOPY|CTL_USE_LENGTH)

 /* Pattern controls that are mutually exclusive. At present these are all in
 the first control word. Note that CTL_POSIX_NOSUB is always accompanied by
 CTL_POSIX, so it doesn't need its own entries. */

 static uint32_t exclusive_pat_controls[] = {
   CTL_POSIX    | CTL_PUSH,
   CTL_POSIX    | CTL_PUSHCOPY,
   CTL_POSIX    | CTL_PUSHTABLESCOPY,
   CTL_PUSH     | CTL_PUSHCOPY,
   CTL_PUSH     | CTL_PUSHTABLESCOPY,
   CTL_PUSHCOPY | CTL_PUSHTABLESCOPY,
   CTL_EXPAND   | CTL_HEXPAT };

 /* Data controls that are mutually exclusive. At present these are all in the
 first control word. */

 static uint32_t exclusive_dat_controls[] = {
   CTL_ALLUSEDTEXT        | CTL_STARTCHAR,
   CTL_FINDLIMITS         | CTL_NULLCONTEXT,
   CTL_FINDLIMITS_NOHEAP  | CTL_NULLCONTEXT };

 /* Table of single-character abbreviated modifiers. The index field is
 initialized to -1, but the first time the modifier is encountered, it is filled
 in with the index of the full entry in modlist, to save repeated searching when
 processing multiple test items. This short list is searched serially, so its
 order does not matter. */

 typedef struct c1modstruct {
   const char *fullname;
   uint32_t    onechar;
   int         index;
 } c1modstruct;

 static c1modstruct c1modlist[] = {
   { "bincode",         'B',           -1 },
   { "info",            'I',           -1 },
   { "global",          'g',           -1 },
   { "caseless",        'i',           -1 },
   { "multiline",       'm',           -1 },
   { "no_auto_capture", 'n',           -1 },
   { "dotall",          's',           -1 },
   { "extended",        'x',           -1 }
 };

 #define C1MODLISTCOUNT sizeof(c1modlist)/sizeof(c1modstruct)

 /* Table of arguments for the -C command line option. Use macros to make the
 table itself easier to read. */

 #if defined SUPPORT_PCRE2_8
 #define SUPPORT_8 1
 #endif
 #if defined SUPPORT_PCRE2_16
 #define SUPPORT_16 1
 #endif
 #if defined SUPPORT_PCRE2_32
 #define SUPPORT_32 1
 #endif

 #ifndef SUPPORT_8
 #define SUPPORT_8 0
 #endif
 #ifndef SUPPORT_16
 #define SUPPORT_16 0
 #endif
 #ifndef SUPPORT_32
 #define SUPPORT_32 0
 #endif

 #ifdef EBCDIC
 #define SUPPORT_EBCDIC 1
 #define EBCDIC_NL CHAR_LF
 #else
 #define SUPPORT_EBCDIC 0
 #define EBCDIC_NL 0
 #endif

 #ifdef NEVER_BACKSLASH_C
 #define BACKSLASH_C 0
 #else
 #define BACKSLASH_C 1
 #endif

 typedef struct coptstruct {
   const char *name;
   uint32_t    type;
   uint32_t    value;
 } coptstruct;

 enum { CONF_BSR,
        CONF_FIX,
        CONF_FIZ,
        CONF_INT,
        CONF_NL
 };

 static coptstruct coptlist[] = {
   { "backslash-C", CONF_FIX, BACKSLASH_C },
   { "bsr",         CONF_BSR, PCRE2_CONFIG_BSR },
   { "ebcdic",      CONF_FIX, SUPPORT_EBCDIC },
   { "ebcdic-nl",   CONF_FIZ, EBCDIC_NL },
   { "jit",         CONF_INT, PCRE2_CONFIG_JIT },
   { "linksize",    CONF_INT, PCRE2_CONFIG_LINKSIZE },
   { "newline",     CONF_NL,  PCRE2_CONFIG_NEWLINE },
   { "pcre2-16",    CONF_FIX, SUPPORT_16 },
   { "pcre2-32",    CONF_FIX, SUPPORT_32 },
   { "pcre2-8",     CONF_FIX, SUPPORT_8 },
   { "unicode",     CONF_INT, PCRE2_CONFIG_UNICODE }
 };

 #define COPTLISTCOUNT sizeof(coptlist)/sizeof(coptstruct)

 #undef SUPPORT_8
 #undef SUPPORT_16
 #undef SUPPORT_32
 #undef SUPPORT_EBCDIC


 /* ----------------------- Static variables ------------------------ */

 static FILE *infile;
 static FILE *outfile;

 static const void *last_callout_mark;
 static PCRE2_JIT_STACK *jit_stack = NULL;
 static size_t jit_stack_size = 0;

 static BOOL first_callout;
 static BOOL jit_was_used;
 static BOOL restrict_for_perl_test = FALSE;
 static BOOL show_memory = FALSE;

 static int jitrc;                             /* Return from JIT compile */
 static int test_mode = DEFAULT_TEST_MODE;
 static int timeit = 0;
 static int timeitm = 0;

 clock_t total_compile_time = 0;
 clock_t total_jit_compile_time = 0;
 clock_t total_match_time = 0;

 static uint32_t code_unit_size;               /* Bytes */
 static uint32_t dfa_matched;
 static uint32_t forbid_utf = 0;
 static uint32_t maxlookbehind;
 static uint32_t max_oveccount;
 static uint32_t callout_count;
 static uint32_t maxcapcount;

 static uint16_t local_newline_default = 0;

 static VERSION_TYPE jittarget[VERSION_SIZE];
 static VERSION_TYPE version[VERSION_SIZE];
 static VERSION_TYPE uversion[VERSION_SIZE];

 static patctl def_patctl;
 static patctl pat_patctl;
 static datctl def_datctl;
 static datctl dat_datctl;

 static void *patstack[PATSTACKSIZE];
 static int patstacknext = 0;

 static void *malloclist[MALLOCLISTSIZE];
 static PCRE2_SIZE malloclistlength[MALLOCLISTSIZE];
 static uint32_t malloclistptr = 0;

 #ifdef SUPPORT_PCRE2_8
 static regex_t preg = { NULL, NULL, 0, 0, 0, 0 };
 #endif

 static int *dfa_workspace = NULL;
 static const uint8_t *locale_tables = NULL;
 static const uint8_t *use_tables = NULL;
 static uint8_t locale_name[32];
 static uint8_t *tables3 = NULL;         /* For binary-loaded tables */
 static uint32_t loadtables_length = 0;

 /* We need buffers for building 16/32-bit strings; 8-bit strings don't need
 rebuilding, but set up the same naming scheme for use in macros. The "buffer"
 buffer is where all input lines are read. Its size is the same as pbuffer8.
 Pattern lines are always copied to pbuffer8 for use in callouts, even if they
 are actually compiled from pbuffer16 or pbuffer32. */

 static size_t    pbuffer8_size  = 50000;        /* Initial size, bytes */
 static uint8_t  *pbuffer8 = NULL;
 static uint8_t  *buffer = NULL;

 /* The dbuffer is where all processed data lines are put. In non-8-bit modes it
 is cast as needed. For long data lines it grows as necessary. */

 static size_t dbuffer_size = 1u << 14;    /* Initial size, bytes */
 static uint8_t *dbuffer = NULL;


 /* ---------------- Mode-dependent variables -------------------*/

 #ifdef SUPPORT_PCRE2_8
 static pcre2_code_8             *compiled_code8;
 static pcre2_general_context_8  *general_context8, *general_context_copy8;
 static pcre2_compile_context_8  *pat_context8, *default_pat_context8;
 static pcre2_convert_context_8  *con_context8, *default_con_context8;
 static pcre2_match_context_8    *dat_context8, *default_dat_context8;
 static pcre2_match_data_8       *match_data8;
 #endif

 #ifdef SUPPORT_PCRE2_16
 static pcre2_code_16            *compiled_code16;
 static pcre2_general_context_16 *general_context16, *general_context_copy16;
 static pcre2_compile_context_16 *pat_context16, *default_pat_context16;
 static pcre2_convert_context_16 *con_context16, *default_con_context16;
 static pcre2_match_context_16   *dat_context16, *default_dat_context16;
 static pcre2_match_data_16      *match_data16;
 static PCRE2_SIZE pbuffer16_size = 0;   /* Set only when needed */
 static uint16_t *pbuffer16 = NULL;
 #endif

 #ifdef SUPPORT_PCRE2_32
 static pcre2_code_32            *compiled_code32;
 static pcre2_general_context_32 *general_context32, *general_context_copy32;
 static pcre2_compile_context_32 *pat_context32, *default_pat_context32;
 static pcre2_convert_context_32 *con_context32, *default_con_context32;
 static pcre2_match_context_32   *dat_context32, *default_dat_context32;
 static pcre2_match_data_32      *match_data32;
 static PCRE2_SIZE pbuffer32_size = 0;   /* Set only when needed */
 static uint32_t *pbuffer32 = NULL;
 #endif


 /* ---------------- Macros that work in all modes ----------------- */

 #define CAST8VAR(x) CASTVAR(uint8_t *, x)
 #define SET(x,y) SETOP(x,y,=)
 #define SETPLUS(x,y) SETOP(x,y,+=)
 #define strlen8(x) strlen((char *)x)


 /* ---------------- Mode-dependent, runtime-testing macros ------------------*/

 /* Define macros for variables and functions that must be selected dynamically
 depending on the mode setting (8, 16, 32). These are dependent on which modes
 are supported. */

 #if (defined (SUPPORT_PCRE2_8) + defined (SUPPORT_PCRE2_16) + \
      defined (SUPPORT_PCRE2_32)) >= 2

 /* ----- All three modes supported ----- */

 #if defined(SUPPORT_PCRE2_8) && defined(SUPPORT_PCRE2_16) && defined(SUPPORT_PCRE2_32)

 #define CASTFLD(t,a,b) ((test_mode == PCRE8_MODE)? (t)(G(a,8)->b) : \
   (test_mode == PCRE16_MODE)? (t)(G(a,16)->b) : (t)(G(a,32)->b))

 #define CASTVAR(t,x) ( \
   (test_mode == PCRE8_MODE)? (t)G(x,8) : \
   (test_mode == PCRE16_MODE)? (t)G(x,16) : (t)G(x,32))

 #define CODE_UNIT(a,b) ( \
   (test_mode == PCRE8_MODE)? (uint32_t)(((PCRE2_SPTR8)(a))[b]) : \
   (test_mode == PCRE16_MODE)? (uint32_t)(((PCRE2_SPTR16)(a))[b]) : \
   (uint32_t)(((PCRE2_SPTR32)(a))[b]))

 #define CONCTXCPY(a,b) \
   if (test_mode == PCRE8_MODE) \
     memcpy(G(a,8),G(b,8),sizeof(pcre2_convert_context_8)); \
   else if (test_mode == PCRE16_MODE) \
     memcpy(G(a,16),G(b,16),sizeof(pcre2_convert_context_16)); \
   else memcpy(G(a,32),G(b,32),sizeof(pcre2_convert_context_32))

 #define CONVERT_COPY(a,b,c) \
   if (test_mode == PCRE8_MODE) \
     memcpy(G(a,8),(char *)b,c); \
   else if (test_mode == PCRE16_MODE) \
     memcpy(G(a,16),(char *)b,(c)*2); \
   else if (test_mode == PCRE32_MODE) \
     memcpy(G(a,32),(char *)b,(c)*4)

 #define DATCTXCPY(a,b) \
   if (test_mode == PCRE8_MODE) \
     memcpy(G(a,8),G(b,8),sizeof(pcre2_match_context_8)); \
   else if (test_mode == PCRE16_MODE) \
     memcpy(G(a,16),G(b,16),sizeof(pcre2_match_context_16)); \
   else memcpy(G(a,32),G(b,32),sizeof(pcre2_match_context_32))

 #define FLD(a,b) ((test_mode == PCRE8_MODE)? G(a,8)->b : \
   (test_mode == PCRE16_MODE)? G(a,16)->b : G(a,32)->b)

 #define PATCTXCPY(a,b) \
   if (test_mode == PCRE8_MODE) \
     memcpy(G(a,8),G(b,8),sizeof(pcre2_compile_context_8)); \
   else if (test_mode == PCRE16_MODE) \
     memcpy(G(a,16),G(b,16),sizeof(pcre2_compile_context_16)); \
   else memcpy(G(a,32),G(b,32),sizeof(pcre2_compile_context_32))

 #define PCHARS(lv, p, offset, len, utf, f) \
   if (test_mode == PCRE32_MODE) \
     lv = pchars32((PCRE2_SPTR32)(p)+offset, len, utf, f); \
   else if (test_mode == PCRE16_MODE) \
     lv = pchars16((PCRE2_SPTR16)(p)+offset, len, utf, f); \
   else \
     lv = pchars8((PCRE2_SPTR8)(p)+offset, len, utf, f)

 #define PCHARSV(p, offset, len, utf, f) \
   if (test_mode == PCRE32_MODE) \
     (void)pchars32((PCRE2_SPTR32)(p)+offset, len, utf, f); \
   else if (test_mode == PCRE16_MODE) \
     (void)pchars16((PCRE2_SPTR16)(p)+offset, len, utf, f); \
   else \
     (void)pchars8((PCRE2_SPTR8)(p)+offset, len, utf, f)

 #define PCRE2_CALLOUT_ENUMERATE(a,b,c) \
   if (test_mode == PCRE8_MODE) \
      a = pcre2_callout_enumerate_8(compiled_code8, \
        (int (*)(struct pcre2_callout_enumerate_block_8 *, void *))b,c); \
   else if (test_mode == PCRE16_MODE) \
      a = pcre2_callout_enumerate_16(compiled_code16, \
        (int(*)(struct pcre2_callout_enumerate_block_16 *, void *))b,c); \
   else \
      a = pcre2_callout_enumerate_32(compiled_code32, \
        (int (*)(struct pcre2_callout_enumerate_block_32 *, void *))b,c)

 #define PCRE2_CODE_COPY_FROM_VOID(a,b) \
   if (test_mode == PCRE8_MODE) \
     G(a,8) = pcre2_code_copy_8(b); \
   else if (test_mode == PCRE16_MODE) \
     G(a,16) = pcre2_code_copy_16(b); \
   else \
     G(a,32) = pcre2_code_copy_32(b)

 #define PCRE2_CODE_COPY_TO_VOID(a,b) \
   if (test_mode == PCRE8_MODE) \
     a = (void *)pcre2_code_copy_8(G(b,8)); \
   else if (test_mode == PCRE16_MODE) \
     a = (void *)pcre2_code_copy_16(G(b,16)); \
   else \
     a = (void *)pcre2_code_copy_32(G(b,32))

 #define PCRE2_CODE_COPY_WITH_TABLES_TO_VOID(a,b) \
   if (test_mode == PCRE8_MODE) \
     a = (void *)pcre2_code_copy_with_tables_8(G(b,8)); \
   else if (test_mode == PCRE16_MODE) \
     a = (void *)pcre2_code_copy_with_tables_16(G(b,16)); \
   else \
     a = (void *)pcre2_code_copy_with_tables_32(G(b,32))

 #define PCRE2_COMPILE(a,b,c,d,e,f,g) \
   if (test_mode == PCRE8_MODE) \
     G(a,8) = pcre2_compile_8(G(b,8),c,d,e,f,g); \
   else if (test_mode == PCRE16_MODE) \
     G(a,16) = pcre2_compile_16(G(b,16),c,d,e,f,g); \
   else \
     G(a,32) = pcre2_compile_32(G(b,32),c,d,e,f,g)

 #define PCRE2_CONVERTED_PATTERN_FREE(a) \
   if (test_mode == PCRE8_MODE) pcre2_converted_pattern_free_8((PCRE2_UCHAR8 *)a); \
   else if (test_mode == PCRE16_MODE) pcre2_converted_pattern_free_16((PCRE2_UCHAR16 *)a); \
   else pcre2_converted_pattern_free_32((PCRE2_UCHAR32 *)a)

 #define PCRE2_DFA_MATCH(a,b,c,d,e,f,g,h,i,j) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_dfa_match_8(G(b,8),(PCRE2_SPTR8)c,d,e,f,G(g,8),h,i,j); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_dfa_match_16(G(b,16),(PCRE2_SPTR16)c,d,e,f,G(g,16),h,i,j); \
   else \
     a = pcre2_dfa_match_32(G(b,32),(PCRE2_SPTR32)c,d,e,f,G(g,32),h,i,j)

 #define PCRE2_GET_ERROR_MESSAGE(r,a,b) \
   if (test_mode == PCRE8_MODE) \
     r = pcre2_get_error_message_8(a,G(b,8),G(G(b,8),_size)); \
   else if (test_mode == PCRE16_MODE) \
     r = pcre2_get_error_message_16(a,G(b,16),G(G(b,16),_size/2)); \
   else \
     r = pcre2_get_error_message_32(a,G(b,32),G(G(b,32),_size/4))

 #define PCRE2_GET_OVECTOR_COUNT(a,b) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_get_ovector_count_8(G(b,8)); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_get_ovector_count_16(G(b,16)); \
   else \
     a = pcre2_get_ovector_count_32(G(b,32))

 #define PCRE2_GET_STARTCHAR(a,b) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_get_startchar_8(G(b,8)); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_get_startchar_16(G(b,16)); \
   else \
     a = pcre2_get_startchar_32(G(b,32))

 #define PCRE2_JIT_COMPILE(r,a,b) \
   if (test_mode == PCRE8_MODE) r = pcre2_jit_compile_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) r = pcre2_jit_compile_16(G(a,16),b); \
   else r = pcre2_jit_compile_32(G(a,32),b)

 #define PCRE2_JIT_FREE_UNUSED_MEMORY(a) \
   if (test_mode == PCRE8_MODE) pcre2_jit_free_unused_memory_8(G(a,8)); \
   else if (test_mode == PCRE16_MODE) pcre2_jit_free_unused_memory_16(G(a,16)); \
   else pcre2_jit_free_unused_memory_32(G(a,32))

 #define PCRE2_JIT_MATCH(a,b,c,d,e,f,g,h) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_jit_match_8(G(b,8),(PCRE2_SPTR8)c,d,e,f,G(g,8),h); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_jit_match_16(G(b,16),(PCRE2_SPTR16)c,d,e,f,G(g,16),h); \
   else \
     a = pcre2_jit_match_32(G(b,32),(PCRE2_SPTR32)c,d,e,f,G(g,32),h)

 #define PCRE2_JIT_STACK_CREATE(a,b,c,d) \
   if (test_mode == PCRE8_MODE) \
     a = (PCRE2_JIT_STACK *)pcre2_jit_stack_create_8(b,c,d); \
   else if (test_mode == PCRE16_MODE) \
     a = (PCRE2_JIT_STACK *)pcre2_jit_stack_create_16(b,c,d); \
   else \
     a = (PCRE2_JIT_STACK *)pcre2_jit_stack_create_32(b,c,d);

 #define PCRE2_JIT_STACK_ASSIGN(a,b,c) \
   if (test_mode == PCRE8_MODE) \
     pcre2_jit_stack_assign_8(G(a,8),(pcre2_jit_callback_8)b,c); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_jit_stack_assign_16(G(a,16),(pcre2_jit_callback_16)b,c); \
   else \
     pcre2_jit_stack_assign_32(G(a,32),(pcre2_jit_callback_32)b,c);

 #define PCRE2_JIT_STACK_FREE(a) \
   if (test_mode == PCRE8_MODE) \
     pcre2_jit_stack_free_8((pcre2_jit_stack_8 *)a); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_jit_stack_free_16((pcre2_jit_stack_16 *)a); \
   else \
     pcre2_jit_stack_free_32((pcre2_jit_stack_32 *)a);

 #define PCRE2_MAKETABLES(a,c) \
   if (test_mode == PCRE8_MODE) a = pcre2_maketables_8(G(c,8)); \
   else if (test_mode == PCRE16_MODE) a = pcre2_maketables_16(G(c,16)); \
   else a = pcre2_maketables_32(G(c,32))

 #define PCRE2_MAKETABLES_FREE(c,a) \
   if (test_mode == PCRE8_MODE) pcre2_maketables_free_8(G(c,8),a); \
   else if (test_mode == PCRE16_MODE) pcre2_maketables_free_16(G(c,16),a); \
   else pcre2_maketables_free_32(G(c,32),a)

 #define PCRE2_MATCH(a,b,c,d,e,f,g,h) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_match_8(G(b,8),(PCRE2_SPTR8)c,d,e,f,G(g,8),h); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_match_16(G(b,16),(PCRE2_SPTR16)c,d,e,f,G(g,16),h); \
   else \
     a = pcre2_match_32(G(b,32),(PCRE2_SPTR32)c,d,e,f,G(g,32),h)

 #define PCRE2_MATCH_DATA_CREATE(a,b,c) \
   if (test_mode == PCRE8_MODE) \
     G(a,8) = pcre2_match_data_create_8(b,G(c,8)); \
   else if (test_mode == PCRE16_MODE) \
     G(a,16) = pcre2_match_data_create_16(b,G(c,16)); \
   else \
     G(a,32) = pcre2_match_data_create_32(b,G(c,32))

 #define PCRE2_MATCH_DATA_CREATE_FROM_PATTERN(a,b,c) \
   if (test_mode == PCRE8_MODE) \
     G(a,8) = pcre2_match_data_create_from_pattern_8(G(b,8),G(c,8)); \
   else if (test_mode == PCRE16_MODE) \
     G(a,16) = pcre2_match_data_create_from_pattern_16(G(b,16),G(c,16)); \
   else \
     G(a,32) = pcre2_match_data_create_from_pattern_32(G(b,32),G(c,32))

 #define PCRE2_MATCH_DATA_FREE(a) \
   if (test_mode == PCRE8_MODE) \
     pcre2_match_data_free_8(G(a,8)); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_match_data_free_16(G(a,16)); \
   else \
     pcre2_match_data_free_32(G(a,32))

 #define PCRE2_PATTERN_CONVERT(a,b,c,d,e,f,g) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_pattern_convert_8(G(b,8),c,d,(PCRE2_UCHAR8 **)e,f,G(g,8)); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_pattern_convert_16(G(b,16),c,d,(PCRE2_UCHAR16 **)e,f,G(g,16)); \
   else \
     a = pcre2_pattern_convert_32(G(b,32),c,d,(PCRE2_UCHAR32 **)e,f,G(g,32))

 #define PCRE2_PATTERN_INFO(a,b,c,d) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_pattern_info_8(G(b,8),c,d); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_pattern_info_16(G(b,16),c,d); \
   else \
     a = pcre2_pattern_info_32(G(b,32),c,d)

 #define PCRE2_PRINTINT(a) \
   if (test_mode == PCRE8_MODE) \
     pcre2_printint_8(compiled_code8,outfile,a); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_printint_16(compiled_code16,outfile,a); \
   else \
     pcre2_printint_32(compiled_code32,outfile,a)

 #define PCRE2_SERIALIZE_DECODE(r,a,b,c,d) \
   if (test_mode == PCRE8_MODE) \
     r = pcre2_serialize_decode_8((pcre2_code_8 **)a,b,c,G(d,8)); \
   else if (test_mode == PCRE16_MODE) \
     r = pcre2_serialize_decode_16((pcre2_code_16 **)a,b,c,G(d,16)); \
   else \
     r = pcre2_serialize_decode_32((pcre2_code_32 **)a,b,c,G(d,32))

 #define PCRE2_SERIALIZE_ENCODE(r,a,b,c,d,e) \
   if (test_mode == PCRE8_MODE) \
     r = pcre2_serialize_encode_8((const pcre2_code_8 **)a,b,c,d,G(e,8)); \
   else if (test_mode == PCRE16_MODE) \
     r = pcre2_serialize_encode_16((const pcre2_code_16 **)a,b,c,d,G(e,16)); \
   else \
     r = pcre2_serialize_encode_32((const pcre2_code_32 **)a,b,c,d,G(e,32))

 #define PCRE2_SERIALIZE_FREE(a) \
   if (test_mode == PCRE8_MODE) \
     pcre2_serialize_free_8(a); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_serialize_free_16(a); \
   else \
     pcre2_serialize_free_32(a)

 #define PCRE2_SERIALIZE_GET_NUMBER_OF_CODES(r,a) \
   if (test_mode == PCRE8_MODE) \
     r = pcre2_serialize_get_number_of_codes_8(a); \
   else if (test_mode == PCRE16_MODE) \
     r = pcre2_serialize_get_number_of_codes_16(a); \
   else \
     r = pcre2_serialize_get_number_of_codes_32(a); \

 #define PCRE2_SET_CALLOUT(a,b,c) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_callout_8(G(a,8),(int (*)(pcre2_callout_block_8 *, void *))b,c); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_callout_16(G(a,16),(int (*)(pcre2_callout_block_16 *, void *))b,c); \
   else \
     pcre2_set_callout_32(G(a,32),(int (*)(pcre2_callout_block_32 *, void *))b,c);

 #define PCRE2_SET_CHARACTER_TABLES(a,b) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_character_tables_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_character_tables_16(G(a,16),b); \
   else \
     pcre2_set_character_tables_32(G(a,32),b)

 #define PCRE2_SET_COMPILE_RECURSION_GUARD(a,b,c) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_compile_recursion_guard_8(G(a,8),b,c); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_compile_recursion_guard_16(G(a,16),b,c); \
   else \
     pcre2_set_compile_recursion_guard_32(G(a,32),b,c)

 #define PCRE2_SET_DEPTH_LIMIT(a,b) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_depth_limit_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_depth_limit_16(G(a,16),b); \
   else \
     pcre2_set_depth_limit_32(G(a,32),b)

 #define PCRE2_SET_GLOB_SEPARATOR(r,a,b) \
   if (test_mode == PCRE8_MODE) \
     r = pcre2_set_glob_separator_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     r = pcre2_set_glob_separator_16(G(a,16),b); \
   else \
     r = pcre2_set_glob_separator_32(G(a,32),b)

 #define PCRE2_SET_GLOB_ESCAPE(r,a,b) \
   if (test_mode == PCRE8_MODE) \
     r = pcre2_set_glob_escape_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     r = pcre2_set_glob_escape_16(G(a,16),b); \
   else \
     r = pcre2_set_glob_escape_32(G(a,32),b)

 #define PCRE2_SET_HEAP_LIMIT(a,b) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_heap_limit_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_heap_limit_16(G(a,16),b); \
   else \
     pcre2_set_heap_limit_32(G(a,32),b)

 #define PCRE2_SET_MATCH_LIMIT(a,b) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_match_limit_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_match_limit_16(G(a,16),b); \
   else \
     pcre2_set_match_limit_32(G(a,32),b)

 #define PCRE2_SET_MAX_PATTERN_LENGTH(a,b) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_max_pattern_length_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_max_pattern_length_16(G(a,16),b); \
   else \
     pcre2_set_max_pattern_length_32(G(a,32),b)

 #define PCRE2_SET_OFFSET_LIMIT(a,b) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_offset_limit_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_offset_limit_16(G(a,16),b); \
   else \
     pcre2_set_offset_limit_32(G(a,32),b)

 #define PCRE2_SET_PARENS_NEST_LIMIT(a,b) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_parens_nest_limit_8(G(a,8),b); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_parens_nest_limit_16(G(a,16),b); \
   else \
     pcre2_set_parens_nest_limit_32(G(a,32),b)

 #define PCRE2_SET_SUBSTITUTE_CALLOUT(a,b,c) \
   if (test_mode == PCRE8_MODE) \
     pcre2_set_substitute_callout_8(G(a,8), \
       (int (*)(pcre2_substitute_callout_block_8 *, void *))b,c); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_set_substitute_callout_16(G(a,16), \
       (int (*)(pcre2_substitute_callout_block_16 *, void *))b,c); \
   else \
     pcre2_set_substitute_callout_32(G(a,32), \
       (int (*)(pcre2_substitute_callout_block_32 *, void *))b,c)

 #define PCRE2_SUBSTITUTE(a,b,c,d,e,f,g,h,i,j,k,l) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substitute_8(G(b,8),(PCRE2_SPTR8)c,d,e,f,G(g,8),h, \
       (PCRE2_SPTR8)i,j,(PCRE2_UCHAR8 *)k,l); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substitute_16(G(b,16),(PCRE2_SPTR16)c,d,e,f,G(g,16),h, \
       (PCRE2_SPTR16)i,j,(PCRE2_UCHAR16 *)k,l); \
   else \
     a = pcre2_substitute_32(G(b,32),(PCRE2_SPTR32)c,d,e,f,G(g,32),h, \
       (PCRE2_SPTR32)i,j,(PCRE2_UCHAR32 *)k,l)

 #define PCRE2_SUBSTRING_COPY_BYNAME(a,b,c,d,e) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substring_copy_byname_8(G(b,8),G(c,8),(PCRE2_UCHAR8 *)d,e); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substring_copy_byname_16(G(b,16),G(c,16),(PCRE2_UCHAR16 *)d,e); \
   else \
     a = pcre2_substring_copy_byname_32(G(b,32),G(c,32),(PCRE2_UCHAR32 *)d,e)

 #define PCRE2_SUBSTRING_COPY_BYNUMBER(a,b,c,d,e) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substring_copy_bynumber_8(G(b,8),c,(PCRE2_UCHAR8 *)d,e); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substring_copy_bynumber_16(G(b,16),c,(PCRE2_UCHAR16 *)d,e); \
   else \
     a = pcre2_substring_copy_bynumber_32(G(b,32),c,(PCRE2_UCHAR32 *)d,e)

 #define PCRE2_SUBSTRING_FREE(a) \
   if (test_mode == PCRE8_MODE) pcre2_substring_free_8((PCRE2_UCHAR8 *)a); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_substring_free_16((PCRE2_UCHAR16 *)a); \
   else pcre2_substring_free_32((PCRE2_UCHAR32 *)a)

 #define PCRE2_SUBSTRING_GET_BYNAME(a,b,c,d,e) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substring_get_byname_8(G(b,8),G(c,8),(PCRE2_UCHAR8 **)d,e); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substring_get_byname_16(G(b,16),G(c,16),(PCRE2_UCHAR16 **)d,e); \
   else \
     a = pcre2_substring_get_byname_32(G(b,32),G(c,32),(PCRE2_UCHAR32 **)d,e)

 #define PCRE2_SUBSTRING_GET_BYNUMBER(a,b,c,d,e) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substring_get_bynumber_8(G(b,8),c,(PCRE2_UCHAR8 **)d,e); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substring_get_bynumber_16(G(b,16),c,(PCRE2_UCHAR16 **)d,e); \
   else \
     a = pcre2_substring_get_bynumber_32(G(b,32),c,(PCRE2_UCHAR32 **)d,e)

 #define PCRE2_SUBSTRING_LENGTH_BYNAME(a,b,c,d) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substring_length_byname_8(G(b,8),G(c,8),d); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substring_length_byname_16(G(b,16),G(c,16),d); \
   else \
     a = pcre2_substring_length_byname_32(G(b,32),G(c,32),d)

 #define PCRE2_SUBSTRING_LENGTH_BYNUMBER(a,b,c,d) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substring_length_bynumber_8(G(b,8),c,d); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substring_length_bynumber_16(G(b,16),c,d); \
   else \
     a = pcre2_substring_length_bynumber_32(G(b,32),c,d)

 #define PCRE2_SUBSTRING_LIST_GET(a,b,c,d) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substring_list_get_8(G(b,8),(PCRE2_UCHAR8 ***)c,d); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substring_list_get_16(G(b,16),(PCRE2_UCHAR16 ***)c,d); \
   else \
     a = pcre2_substring_list_get_32(G(b,32),(PCRE2_UCHAR32 ***)c,d)

 #define PCRE2_SUBSTRING_LIST_FREE(a) \
   if (test_mode == PCRE8_MODE) \
     pcre2_substring_list_free_8((PCRE2_SPTR8 *)a); \
   else if (test_mode == PCRE16_MODE) \
     pcre2_substring_list_free_16((PCRE2_SPTR16 *)a); \
   else \
     pcre2_substring_list_free_32((PCRE2_SPTR32 *)a)

 #define PCRE2_SUBSTRING_NUMBER_FROM_NAME(a,b,c) \
   if (test_mode == PCRE8_MODE) \
     a = pcre2_substring_number_from_name_8(G(b,8),G(c,8)); \
   else if (test_mode == PCRE16_MODE) \
     a = pcre2_substring_number_from_name_16(G(b,16),G(c,16)); \
   else \
     a = pcre2_substring_number_from_name_32(G(b,32),G(c,32))

 #define PTR(x) ( \
   (test_mode == PCRE8_MODE)? (void *)G(x,8) : \
   (test_mode == PCRE16_MODE)? (void *)G(x,16) : \
   (void *)G(x,32))

 #define SETFLD(x,y,z) \
   if (test_mode == PCRE8_MODE) G(x,8)->y = z; \
   else if (test_mode == PCRE16_MODE) G(x,16)->y = z; \
   else G(x,32)->y = z

 #define SETFLDVEC(x,y,v,z) \
   if (test_mode == PCRE8_MODE) G(x,8)->y[v] = z; \
   else if (test_mode == PCRE16_MODE) G(x,16)->y[v] = z; \
   else G(x,32)->y[v] = z

 #define SETOP(x,y,z) \
   if (test_mode == PCRE8_MODE) G(x,8) z y; \
   else if (test_mode == PCRE16_MODE) G(x,16) z y; \
   else G(x,32) z y

 #define SETCASTPTR(x,y) \
   if (test_mode == PCRE8_MODE) \
     G(x,8) = (uint8_t *)(y); \
   else if (test_mode == PCRE16_MODE) \
     G(x,16) = (uint16_t *)(y); \
   else \
     G(x,32) = (uint32_t *)(y)

 #define STRLEN(p) ((test_mode == PCRE8_MODE)? ((int)strlen((char *)p)) : \
   (test_mode == PCRE16_MODE)? ((int)strlen16((PCRE2_SPTR16)p)) : \
   ((int)strlen32((PCRE2_SPTR32)p)))

 #define SUB1(a,b) \
   if (test_mode == PCRE8_MODE) G(a,8)(G(b,8)); \
   else if (test_mode == PCRE16_MODE) G(a,16)(G(b,16)); \
   else G(a,32)(G(b,32))

 #define SUB2(a,b,c) \
   if (test_mode == PCRE8_MODE) G(a,8)(G(b,8),G(c,8)); \
   else if (test_mode == PCRE16_MODE) G(a,16)(G(b,16),G(c,16)); \
   else G(a,32)(G(b,32),G(c,32))

 #define TEST(x,r,y) ( \
   (test_mode == PCRE8_MODE && G(x,8) r (y)) || \
   (test_mode == PCRE16_MODE && G(x,16) r (y)) || \
   (test_mode == PCRE32_MODE && G(x,32) r (y)))

 #define TESTFLD(x,f,r,y) ( \
   (test_mode == PCRE8_MODE && G(x,8)->f r (y)) || \
   (test_mode == PCRE16_MODE && G(x,16)->f r (y)) || \
   (test_mode == PCRE32_MODE && G(x,32)->f r (y)))


 /* ----- Two out of three modes are supported ----- */

 #else

 /* We can use some macro trickery to make a single set of definitions work in
 the three different cases. */

 /* ----- 32-bit and 16-bit but not 8-bit supported ----- */

 #if defined(SUPPORT_PCRE2_32) && defined(SUPPORT_PCRE2_16)
 #define BITONE 32
 #define BITTWO 16

 /* ----- 32-bit and 8-bit but not 16-bit supported ----- */

 #elif defined(SUPPORT_PCRE2_32) && defined(SUPPORT_PCRE2_8)
 #define BITONE 32
 #define BITTWO 8

 /* ----- 16-bit and 8-bit but not 32-bit supported ----- */

 #else
 #define BITONE 16
 #define BITTWO 8
 #endif


 /* ----- Common macros for two-mode cases ----- */

 #define BYTEONE (BITONE/8)
 #define BYTETWO (BITTWO/8)

 #define CASTFLD(t,a,b) \
   ((test_mode == G(G(PCRE,BITONE),_MODE))? (t)(G(a,BITONE)->b) : \
     (t)(G(a,BITTWO)->b))

 #define CASTVAR(t,x) ( \
   (test_mode == G(G(PCRE,BITONE),_MODE))? \
     (t)G(x,BITONE) : (t)G(x,BITTWO))

 #define CODE_UNIT(a,b) ( \
   (test_mode == G(G(PCRE,BITONE),_MODE))? \
   (uint32_t)(((G(PCRE2_SPTR,BITONE))(a))[b]) : \
   (uint32_t)(((G(PCRE2_SPTR,BITTWO))(a))[b]))

 #define CONCTXCPY(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     memcpy(G(a,BITONE),G(b,BITONE),sizeof(G(pcre2_convert_context_,BITONE))); \
   else \
     memcpy(G(a,BITTWO),G(b,BITTWO),sizeof(G(pcre2_convert_context_,BITTWO)))

 #define CONVERT_COPY(a,b,c) \
   (test_mode == G(G(PCRE,BITONE),_MODE))? \
   memcpy(G(a,BITONE),(char *)b,(c)*BYTEONE) : \
   memcpy(G(a,BITTWO),(char *)b,(c)*BYTETWO)

 #define DATCTXCPY(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     memcpy(G(a,BITONE),G(b,BITONE),sizeof(G(pcre2_match_context_,BITONE))); \
   else \
     memcpy(G(a,BITTWO),G(b,BITTWO),sizeof(G(pcre2_match_context_,BITTWO)))

 #define FLD(a,b) \
   ((test_mode == G(G(PCRE,BITONE),_MODE))? G(a,BITONE)->b : G(a,BITTWO)->b)

 #define PATCTXCPY(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     memcpy(G(a,BITONE),G(b,BITONE),sizeof(G(pcre2_compile_context_,BITONE))); \
   else \
     memcpy(G(a,BITTWO),G(b,BITTWO),sizeof(G(pcre2_compile_context_,BITTWO)))

 #define PCHARS(lv, p, offset, len, utf, f) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     lv = G(pchars,BITONE)((G(PCRE2_SPTR,BITONE))(p)+offset, len, utf, f); \
   else \
     lv = G(pchars,BITTWO)((G(PCRE2_SPTR,BITTWO))(p)+offset, len, utf, f)

 #define PCHARSV(p, offset, len, utf, f) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     (void)G(pchars,BITONE)((G(PCRE2_SPTR,BITONE))(p)+offset, len, utf, f); \
   else \
     (void)G(pchars,BITTWO)((G(PCRE2_SPTR,BITTWO))(p)+offset, len, utf, f)

 #define PCRE2_CALLOUT_ENUMERATE(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
      a = G(pcre2_callout_enumerate,BITONE)(G(compiled_code,BITONE), \
        (int (*)(struct G(pcre2_callout_enumerate_block_,BITONE) *, void *))b,c); \
   else \
      a = G(pcre2_callout_enumerate,BITTWO)(G(compiled_code,BITTWO), \
        (int (*)(struct G(pcre2_callout_enumerate_block_,BITTWO) *, void *))b,c)

 #define PCRE2_CODE_COPY_FROM_VOID(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(a,BITONE) = G(pcre2_code_copy_,BITONE)(b); \
   else \
     G(a,BITTWO) = G(pcre2_code_copy_,BITTWO)(b)

 #define PCRE2_CODE_COPY_TO_VOID(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = (void *)G(pcre2_code_copy_,BITONE)(G(b,BITONE)); \
   else \
     a = (void *)G(pcre2_code_copy_,BITTWO)(G(b,BITTWO))

 #define PCRE2_CODE_COPY_WITH_TABLES_TO_VOID(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = (void *)G(pcre2_code_copy_with_tables_,BITONE)(G(b,BITONE)); \
   else \
     a = (void *)G(pcre2_code_copy_with_tables_,BITTWO)(G(b,BITTWO))

 #define PCRE2_COMPILE(a,b,c,d,e,f,g) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(a,BITONE) = G(pcre2_compile_,BITONE)(G(b,BITONE),c,d,e,f,g); \
   else \
     G(a,BITTWO) = G(pcre2_compile_,BITTWO)(G(b,BITTWO),c,d,e,f,g)

 #define PCRE2_CONVERTED_PATTERN_FREE(a) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_converted_pattern_free_,BITONE)((G(PCRE2_UCHAR,BITONE) *)a); \
   else \
     G(pcre2_converted_pattern_free_,BITTWO)((G(PCRE2_UCHAR,BITTWO) *)a)

 #define PCRE2_DFA_MATCH(a,b,c,d,e,f,g,h,i,j) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_dfa_match_,BITONE)(G(b,BITONE),(G(PCRE2_SPTR,BITONE))c,d,e,f, \
       G(g,BITONE),h,i,j); \
   else \
     a = G(pcre2_dfa_match_,BITTWO)(G(b,BITTWO),(G(PCRE2_SPTR,BITTWO))c,d,e,f, \
       G(g,BITTWO),h,i,j)

 #define PCRE2_GET_ERROR_MESSAGE(r,a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     r = G(pcre2_get_error_message_,BITONE)(a,G(b,BITONE),G(G(b,BITONE),_size/BYTEONE)); \
   else \
     r = G(pcre2_get_error_message_,BITTWO)(a,G(b,BITTWO),G(G(b,BITTWO),_size/BYTETWO))

 #define PCRE2_GET_OVECTOR_COUNT(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_get_ovector_count_,BITONE)(G(b,BITONE)); \
   else \
     a = G(pcre2_get_ovector_count_,BITTWO)(G(b,BITTWO))

 #define PCRE2_GET_STARTCHAR(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_get_startchar_,BITONE)(G(b,BITONE)); \
   else \
     a = G(pcre2_get_startchar_,BITTWO)(G(b,BITTWO))

 #define PCRE2_JIT_COMPILE(r,a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     r = G(pcre2_jit_compile_,BITONE)(G(a,BITONE),b); \
   else \
     r = G(pcre2_jit_compile_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_JIT_FREE_UNUSED_MEMORY(a) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_jit_free_unused_memory_,BITONE)(G(a,BITONE)); \
   else \
     G(pcre2_jit_free_unused_memory_,BITTWO)(G(a,BITTWO))

 #define PCRE2_JIT_MATCH(a,b,c,d,e,f,g,h) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_jit_match_,BITONE)(G(b,BITONE),(G(PCRE2_SPTR,BITONE))c,d,e,f, \
       G(g,BITONE),h); \
   else \
     a = G(pcre2_jit_match_,BITTWO)(G(b,BITTWO),(G(PCRE2_SPTR,BITTWO))c,d,e,f, \
       G(g,BITTWO),h)

 #define PCRE2_JIT_STACK_CREATE(a,b,c,d) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = (PCRE2_JIT_STACK *)G(pcre2_jit_stack_create_,BITONE)(b,c,d); \
   else \
     a = (PCRE2_JIT_STACK *)G(pcre2_jit_stack_create_,BITTWO)(b,c,d); \

 #define PCRE2_JIT_STACK_ASSIGN(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_jit_stack_assign_,BITONE)(G(a,BITONE),(G(pcre2_jit_callback_,BITONE))b,c); \
   else \
     G(pcre2_jit_stack_assign_,BITTWO)(G(a,BITTWO),(G(pcre2_jit_callback_,BITTWO))b,c);

 #define PCRE2_JIT_STACK_FREE(a) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_jit_stack_free_,BITONE)((G(pcre2_jit_stack_,BITONE) *)a); \
   else \
     G(pcre2_jit_stack_free_,BITTWO)((G(pcre2_jit_stack_,BITTWO) *)a);

 #define PCRE2_MAKETABLES(a,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_maketables_,BITONE)(G(c,BITONE)); \
   else \
     a = G(pcre2_maketables_,BITTWO)(G(c,BITTWO))

 #define PCRE2_MAKETABLES_FREE(c,a) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_maketables_free_,BITONE)(G(c,BITONE),a); \
   else \
     G(pcre2_maketables_free_,BITTWO)(G(c,BITTWO),a)

 #define PCRE2_MATCH(a,b,c,d,e,f,g,h) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_match_,BITONE)(G(b,BITONE),(G(PCRE2_SPTR,BITONE))c,d,e,f, \
       G(g,BITONE),h); \
   else \
     a = G(pcre2_match_,BITTWO)(G(b,BITTWO),(G(PCRE2_SPTR,BITTWO))c,d,e,f, \
       G(g,BITTWO),h)

 #define PCRE2_MATCH_DATA_CREATE(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(a,BITONE) = G(pcre2_match_data_create_,BITONE)(b,G(c,BITONE)); \
   else \
     G(a,BITTWO) = G(pcre2_match_data_create_,BITTWO)(b,G(c,BITTWO))

 #define PCRE2_MATCH_DATA_CREATE_FROM_PATTERN(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(a,BITONE) = G(pcre2_match_data_create_from_pattern_,BITONE)(G(b,BITONE),G(c,BITONE)); \
   else \
     G(a,BITTWO) = G(pcre2_match_data_create_from_pattern_,BITTWO)(G(b,BITTWO),G(c,BITTWO))

 #define PCRE2_MATCH_DATA_FREE(a) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_match_data_free_,BITONE)(G(a,BITONE)); \
   else \
     G(pcre2_match_data_free_,BITTWO)(G(a,BITTWO))

 #define PCRE2_PATTERN_CONVERT(a,b,c,d,e,f,g) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_pattern_convert_,BITONE)(G(b,BITONE),c,d,(G(PCRE2_UCHAR,BITONE) **)e,f,G(g,BITONE)); \
   else \
     a = G(pcre2_pattern_convert_,BITTWO)(G(b,BITTWO),c,d,(G(PCRE2_UCHAR,BITTWO) **)e,f,G(g,BITTWO))

 #define PCRE2_PATTERN_INFO(a,b,c,d) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_pattern_info_,BITONE)(G(b,BITONE),c,d); \
   else \
     a = G(pcre2_pattern_info_,BITTWO)(G(b,BITTWO),c,d)

 #define PCRE2_PRINTINT(a) \
  if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_printint_,BITONE)(G(compiled_code,BITONE),outfile,a); \
   else \
     G(pcre2_printint_,BITTWO)(G(compiled_code,BITTWO),outfile,a)

 #define PCRE2_SERIALIZE_DECODE(r,a,b,c,d) \
  if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     r = G(pcre2_serialize_decode_,BITONE)((G(pcre2_code_,BITONE) **)a,b,c,G(d,BITONE)); \
   else \
     r = G(pcre2_serialize_decode_,BITTWO)((G(pcre2_code_,BITTWO) **)a,b,c,G(d,BITTWO))

 #define PCRE2_SERIALIZE_ENCODE(r,a,b,c,d,e) \
  if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     r = G(pcre2_serialize_encode_,BITONE)((G(const pcre2_code_,BITONE) **)a,b,c,d,G(e,BITONE)); \
   else \
     r = G(pcre2_serialize_encode_,BITTWO)((G(const pcre2_code_,BITTWO) **)a,b,c,d,G(e,BITTWO))

 #define PCRE2_SERIALIZE_FREE(a) \
  if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_serialize_free_,BITONE)(a); \
   else \
     G(pcre2_serialize_free_,BITTWO)(a)

 #define PCRE2_SERIALIZE_GET_NUMBER_OF_CODES(r,a) \
  if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     r = G(pcre2_serialize_get_number_of_codes_,BITONE)(a); \
   else \
     r = G(pcre2_serialize_get_number_of_codes_,BITTWO)(a)

 #define PCRE2_SET_CALLOUT(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_callout_,BITONE)(G(a,BITONE), \
       (int (*)(G(pcre2_callout_block_,BITONE) *, void *))b,c); \
   else \
     G(pcre2_set_callout_,BITTWO)(G(a,BITTWO), \
       (int (*)(G(pcre2_callout_block_,BITTWO) *, void *))b,c);

 #define PCRE2_SET_CHARACTER_TABLES(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_character_tables_,BITONE)(G(a,BITONE),b); \
   else \
     G(pcre2_set_character_tables_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_COMPILE_RECURSION_GUARD(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_compile_recursion_guard_,BITONE)(G(a,BITONE),b,c); \
   else \
     G(pcre2_set_compile_recursion_guard_,BITTWO)(G(a,BITTWO),b,c)

 #define PCRE2_SET_DEPTH_LIMIT(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_depth_limit_,BITONE)(G(a,BITONE),b); \
   else \
     G(pcre2_set_depth_limit_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_GLOB_ESCAPE(r,a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     r = G(pcre2_set_glob_escape_,BITONE)(G(a,BITONE),b); \
   else \
     r = G(pcre2_set_glob_escape_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_GLOB_SEPARATOR(r,a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     r = G(pcre2_set_glob_separator_,BITONE)(G(a,BITONE),b); \
   else \
     r = G(pcre2_set_glob_separator_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_HEAP_LIMIT(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_heap_limit_,BITONE)(G(a,BITONE),b); \
   else \
     G(pcre2_set_heap_limit_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_MATCH_LIMIT(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_match_limit_,BITONE)(G(a,BITONE),b); \
   else \
     G(pcre2_set_match_limit_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_MAX_PATTERN_LENGTH(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_max_pattern_length_,BITONE)(G(a,BITONE),b); \
   else \
     G(pcre2_set_max_pattern_length_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_OFFSET_LIMIT(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_offset_limit_,BITONE)(G(a,BITONE),b); \
   else \
     G(pcre2_set_offset_limit_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_PARENS_NEST_LIMIT(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_parens_nest_limit_,BITONE)(G(a,BITONE),b); \
   else \
     G(pcre2_set_parens_nest_limit_,BITTWO)(G(a,BITTWO),b)

 #define PCRE2_SET_SUBSTITUTE_CALLOUT(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_set_substitute_callout_,BITONE)(G(a,BITONE), \
       (int (*)(G(pcre2_substitute_callout_block_,BITONE) *, void *))b,c); \
   else \
     G(pcre2_set_substitute_callout_,BITTWO)(G(a,BITTWO), \
       (int (*)(G(pcre2_substitute_callout_block_,BITTWO) *, void *))b,c)

 #define PCRE2_SUBSTITUTE(a,b,c,d,e,f,g,h,i,j,k,l) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substitute_,BITONE)(G(b,BITONE),(G(PCRE2_SPTR,BITONE))c,d,e,f, \
       G(g,BITONE),h,(G(PCRE2_SPTR,BITONE))i,j, \
       (G(PCRE2_UCHAR,BITONE) *)k,l); \
   else \
     a = G(pcre2_substitute_,BITTWO)(G(b,BITTWO),(G(PCRE2_SPTR,BITTWO))c,d,e,f, \
       G(g,BITTWO),h,(G(PCRE2_SPTR,BITTWO))i,j, \
       (G(PCRE2_UCHAR,BITTWO) *)k,l)

 #define PCRE2_SUBSTRING_COPY_BYNAME(a,b,c,d,e) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substring_copy_byname_,BITONE)(G(b,BITONE),G(c,BITONE),\
       (G(PCRE2_UCHAR,BITONE) *)d,e); \
   else \
     a = G(pcre2_substring_copy_byname_,BITTWO)(G(b,BITTWO),G(c,BITTWO),\
       (G(PCRE2_UCHAR,BITTWO) *)d,e)

 #define PCRE2_SUBSTRING_COPY_BYNUMBER(a,b,c,d,e) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substring_copy_bynumber_,BITONE)(G(b,BITONE),c,\
       (G(PCRE2_UCHAR,BITONE) *)d,e); \
   else \
     a = G(pcre2_substring_copy_bynumber_,BITTWO)(G(b,BITTWO),c,\
       (G(PCRE2_UCHAR,BITTWO) *)d,e)

 #define PCRE2_SUBSTRING_FREE(a) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_substring_free_,BITONE)((G(PCRE2_UCHAR,BITONE) *)a); \
   else G(pcre2_substring_free_,BITTWO)((G(PCRE2_UCHAR,BITTWO) *)a)

 #define PCRE2_SUBSTRING_GET_BYNAME(a,b,c,d,e) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substring_get_byname_,BITONE)(G(b,BITONE),G(c,BITONE),\
       (G(PCRE2_UCHAR,BITONE) **)d,e); \
   else \
     a = G(pcre2_substring_get_byname_,BITTWO)(G(b,BITTWO),G(c,BITTWO),\
       (G(PCRE2_UCHAR,BITTWO) **)d,e)

 #define PCRE2_SUBSTRING_GET_BYNUMBER(a,b,c,d,e) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substring_get_bynumber_,BITONE)(G(b,BITONE),c,\
       (G(PCRE2_UCHAR,BITONE) **)d,e); \
   else \
     a = G(pcre2_substring_get_bynumber_,BITTWO)(G(b,BITTWO),c,\
       (G(PCRE2_UCHAR,BITTWO) **)d,e)

 #define PCRE2_SUBSTRING_LENGTH_BYNAME(a,b,c,d) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substring_length_byname_,BITONE)(G(b,BITONE),G(c,BITONE),d); \
   else \
     a = G(pcre2_substring_length_byname_,BITTWO)(G(b,BITTWO),G(c,BITTWO),d)

 #define PCRE2_SUBSTRING_LENGTH_BYNUMBER(a,b,c,d) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substring_length_bynumber_,BITONE)(G(b,BITONE),c,d); \
   else \
     a = G(pcre2_substring_length_bynumber_,BITTWO)(G(b,BITTWO),c,d)

 #define PCRE2_SUBSTRING_LIST_GET(a,b,c,d) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substring_list_get_,BITONE)(G(b,BITONE), \
       (G(PCRE2_UCHAR,BITONE) ***)c,d); \
   else \
     a = G(pcre2_substring_list_get_,BITTWO)(G(b,BITTWO), \
       (G(PCRE2_UCHAR,BITTWO) ***)c,d)

 #define PCRE2_SUBSTRING_LIST_FREE(a) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(pcre2_substring_list_free_,BITONE)((G(PCRE2_SPTR,BITONE) *)a); \
   else \
     G(pcre2_substring_list_free_,BITTWO)((G(PCRE2_SPTR,BITTWO) *)a)

 #define PCRE2_SUBSTRING_NUMBER_FROM_NAME(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     a = G(pcre2_substring_number_from_name_,BITONE)(G(b,BITONE),G(c,BITONE)); \
   else \
     a = G(pcre2_substring_number_from_name_,BITTWO)(G(b,BITTWO),G(c,BITTWO))

 #define PTR(x) ( \
   (test_mode == G(G(PCRE,BITONE),_MODE))? (void *)G(x,BITONE) : \
   (void *)G(x,BITTWO))

 #define SETFLD(x,y,z) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) G(x,BITONE)->y = z; \
   else G(x,BITTWO)->y = z

 #define SETFLDVEC(x,y,v,z) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) G(x,BITONE)->y[v] = z; \
   else G(x,BITTWO)->y[v] = z

 #define SETOP(x,y,z) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) G(x,BITONE) z y; \
   else G(x,BITTWO) z y

 #define SETCASTPTR(x,y) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(x,BITONE) = (G(G(uint,BITONE),_t) *)(y); \
   else \
     G(x,BITTWO) = (G(G(uint,BITTWO),_t) *)(y)

 #define STRLEN(p) ((test_mode == G(G(PCRE,BITONE),_MODE))? \
   G(strlen,BITONE)((G(PCRE2_SPTR,BITONE))p) : \
   G(strlen,BITTWO)((G(PCRE2_SPTR,BITTWO))p))

 #define SUB1(a,b) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(a,BITONE)(G(b,BITONE)); \
   else \
     G(a,BITTWO)(G(b,BITTWO))

 #define SUB2(a,b,c) \
   if (test_mode == G(G(PCRE,BITONE),_MODE)) \
     G(a,BITONE))(G(b,BITONE),G(c,BITONE)); \
   else \
     G(a,BITTWO))(G(b,BITTWO),G(c,BITTWO))

 #define TEST(x,r,y) ( \
   (test_mode == G(G(PCRE,BITONE),_MODE) && G(x,BITONE) r (y)) || \
   (test_mode == G(G(PCRE,BITTWO),_MODE) && G(x,BITTWO) r (y)))

 #define TESTFLD(x,f,r,y) ( \
   (test_mode == G(G(PCRE,BITONE),_MODE) && G(x,BITONE)->f r (y)) || \
   (test_mode == G(G(PCRE,BITTWO),_MODE) && G(x,BITTWO)->f r (y)))


 #endif  /* Two out of three modes */

 /* ----- End of cases where more than one mode is supported ----- */


 /* ----- Only 8-bit mode is supported ----- */

 #elif defined SUPPORT_PCRE2_8
 #define CASTFLD(t,a,b) (t)(G(a,8)->b)
 #define CASTVAR(t,x) (t)G(x,8)
 #define CODE_UNIT(a,b) (uint32_t)(((PCRE2_SPTR8)(a))[b])
 #define CONCTXCPY(a,b) memcpy(G(a,8),G(b,8),sizeof(pcre2_convert_context_8))
 #define CONVERT_COPY(a,b,c) memcpy(G(a,8),(char *)b, c)
 #define DATCTXCPY(a,b) memcpy(G(a,8),G(b,8),sizeof(pcre2_match_context_8))
 #define FLD(a,b) G(a,8)->b
 #define PATCTXCPY(a,b) memcpy(G(a,8),G(b,8),sizeof(pcre2_compile_context_8))
 #define PCHARS(lv, p, offset, len, utf, f) \
   lv = pchars8((PCRE2_SPTR8)(p)+offset, len, utf, f)
 #define PCHARSV(p, offset, len, utf, f) \
   (void)pchars8((PCRE2_SPTR8)(p)+offset, len, utf, f)
 #define PCRE2_CALLOUT_ENUMERATE(a,b,c) \
    a = pcre2_callout_enumerate_8(compiled_code8, \
      (int (*)(struct pcre2_callout_enumerate_block_8 *, void *))b,c)
 #define PCRE2_CODE_COPY_FROM_VOID(a,b) G(a,8) = pcre2_code_copy_8(b)
 #define PCRE2_CODE_COPY_TO_VOID(a,b) a = (void *)pcre2_code_copy_8(G(b,8))
 #define PCRE2_CODE_COPY_WITH_TABLES_TO_VOID(a,b) a = (void *)pcre2_code_copy_with_tables_8(G(b,8))
 #define PCRE2_COMPILE(a,b,c,d,e,f,g) \
   G(a,8) = pcre2_compile_8(G(b,8),c,d,e,f,g)
 #define PCRE2_CONVERTED_PATTERN_FREE(a) \
   pcre2_converted_pattern_free_8((PCRE2_UCHAR8 *)a)
 #define PCRE2_DFA_MATCH(a,b,c,d,e,f,g,h,i,j) \
   a = pcre2_dfa_match_8(G(b,8),(PCRE2_SPTR8)c,d,e,f,G(g,8),h,i,j)
 #define PCRE2_GET_ERROR_MESSAGE(r,a,b) \
   r = pcre2_get_error_message_8(a,G(b,8),G(G(b,8),_size))
 #define PCRE2_GET_OVECTOR_COUNT(a,b) a = pcre2_get_ovector_count_8(G(b,8))
 #define PCRE2_GET_STARTCHAR(a,b) a = pcre2_get_startchar_8(G(b,8))
 #define PCRE2_JIT_COMPILE(r,a,b) r = pcre2_jit_compile_8(G(a,8),b)
 #define PCRE2_JIT_FREE_UNUSED_MEMORY(a) pcre2_jit_free_unused_memory_8(G(a,8))
 #define PCRE2_JIT_MATCH(a,b,c,d,e,f,g,h) \
   a = pcre2_jit_match_8(G(b,8),(PCRE2_SPTR8)c,d,e,f,G(g,8),h)
 #define PCRE2_JIT_STACK_CREATE(a,b,c,d) \
   a = (PCRE2_JIT_STACK *)pcre2_jit_stack_create_8(b,c,d);
 #define PCRE2_JIT_STACK_ASSIGN(a,b,c) \
   pcre2_jit_stack_assign_8(G(a,8),(pcre2_jit_callback_8)b,c);
 #define PCRE2_JIT_STACK_FREE(a) pcre2_jit_stack_free_8((pcre2_jit_stack_8 *)a);
 #define PCRE2_MAKETABLES(a,c) a = pcre2_maketables_8(G(c,8))
 #define PCRE2_MAKETABLES_FREE(c,a) pcre2_maketables_free_8(G(c,8),a)
 #define PCRE2_MATCH(a,b,c,d,e,f,g,h) \
   a = pcre2_match_8(G(b,8),(PCRE2_SPTR8)c,d,e,f,G(g,8),h)
 #define PCRE2_MATCH_DATA_CREATE(a,b,c) G(a,8) = pcre2_match_data_create_8(b,G(c,8))
 #define PCRE2_MATCH_DATA_CREATE_FROM_PATTERN(a,b,c) \
   G(a,8) = pcre2_match_data_create_from_pattern_8(G(b,8),G(c,8))
 #define PCRE2_MATCH_DATA_FREE(a) pcre2_match_data_free_8(G(a,8))
 #define PCRE2_PATTERN_CONVERT(a,b,c,d,e,f,g) a = pcre2_pattern_convert_8(G(b,8),c,d,(PCRE2_UCHAR8 **)e,f,G(g,8))
 #define PCRE2_PATTERN_INFO(a,b,c,d) a = pcre2_pattern_info_8(G(b,8),c,d)
 #define PCRE2_PRINTINT(a) pcre2_printint_8(compiled_code8,outfile,a)
 #define PCRE2_SERIALIZE_DECODE(r,a,b,c,d) \
   r = pcre2_serialize_decode_8((pcre2_code_8 **)a,b,c,G(d,8))
 #define PCRE2_SERIALIZE_ENCODE(r,a,b,c,d,e) \
   r = pcre2_serialize_encode_8((const pcre2_code_8 **)a,b,c,d,G(e,8))
 #define PCRE2_SERIALIZE_FREE(a) pcre2_serialize_free_8(a)
 #define PCRE2_SERIALIZE_GET_NUMBER_OF_CODES(r,a) \
   r = pcre2_serialize_get_number_of_codes_8(a)
 #define PCRE2_SET_CALLOUT(a,b,c) \
   pcre2_set_callout_8(G(a,8),(int (*)(pcre2_callout_block_8 *, void *))b,c)
 #define PCRE2_SET_CHARACTER_TABLES(a,b) pcre2_set_character_tables_8(G(a,8),b)
 #define PCRE2_SET_COMPILE_RECURSION_GUARD(a,b,c) \
   pcre2_set_compile_recursion_guard_8(G(a,8),b,c)
 #define PCRE2_SET_DEPTH_LIMIT(a,b) pcre2_set_depth_limit_8(G(a,8),b)
 #define PCRE2_SET_GLOB_ESCAPE(r,a,b) r = pcre2_set_glob_escape_8(G(a,8),b)
 #define PCRE2_SET_GLOB_SEPARATOR(r,a,b) r = pcre2_set_glob_separator_8(G(a,8),b)
 #define PCRE2_SET_HEAP_LIMIT(a,b) pcre2_set_heap_limit_8(G(a,8),b)
 #define PCRE2_SET_MATCH_LIMIT(a,b) pcre2_set_match_limit_8(G(a,8),b)
 #define PCRE2_SET_MAX_PATTERN_LENGTH(a,b) pcre2_set_max_pattern_length_8(G(a,8),b)
 #define PCRE2_SET_OFFSET_LIMIT(a,b) pcre2_set_offset_limit_8(G(a,8),b)
 #define PCRE2_SET_PARENS_NEST_LIMIT(a,b) pcre2_set_parens_nest_limit_8(G(a,8),b)
 #define PCRE2_SET_SUBSTITUTE_CALLOUT(a,b,c) \
   pcre2_set_substitute_callout_8(G(a,8), \
     (int (*)(pcre2_substitute_callout_block_8 *, void *))b,c)
 #define PCRE2_SUBSTITUTE(a,b,c,d,e,f,g,h,i,j,k,l) \
   a = pcre2_substitute_8(G(b,8),(PCRE2_SPTR8)c,d,e,f,G(g,8),h, \
     (PCRE2_SPTR8)i,j,(PCRE2_UCHAR8 *)k,l)
 #define PCRE2_SUBSTRING_COPY_BYNAME(a,b,c,d,e) \
   a = pcre2_substring_copy_byname_8(G(b,8),G(c,8),(PCRE2_UCHAR8 *)d,e)
 #define PCRE2_SUBSTRING_COPY_BYNUMBER(a,b,c,d,e) \
   a = pcre2_substring_copy_bynumber_8(G(b,8),c,(PCRE2_UCHAR8 *)d,e)
 #define PCRE2_SUBSTRING_FREE(a) pcre2_substring_free_8((PCRE2_UCHAR8 *)a)
 #define PCRE2_SUBSTRING_GET_BYNAME(a,b,c,d,e) \
   a = pcre2_substring_get_byname_8(G(b,8),G(c,8),(PCRE2_UCHAR8 **)d,e)
 #define PCRE2_SUBSTRING_GET_BYNUMBER(a,b,c,d,e) \
   a = pcre2_substring_get_bynumber_8(G(b,8),c,(PCRE2_UCHAR8 **)d,e)
 #define PCRE2_SUBSTRING_LENGTH_BYNAME(a,b,c,d) \
     a = pcre2_substring_length_byname_8(G(b,8),G(c,8),d)
 #define PCRE2_SUBSTRING_LENGTH_BYNUMBER(a,b,c,d) \
     a = pcre2_substring_length_bynumber_8(G(b,8),c,d)
 #define PCRE2_SUBSTRING_LIST_GET(a,b,c,d) \
   a = pcre2_substring_list_get_8(G(b,8),(PCRE2_UCHAR8 ***)c,d)
 #define PCRE2_SUBSTRING_LIST_FREE(a) \
   pcre2_substring_list_free_8((PCRE2_SPTR8 *)a)
 #define PCRE2_SUBSTRING_NUMBER_FROM_NAME(a,b,c) \
   a = pcre2_substring_number_from_name_8(G(b,8),G(c,8));
 #define PTR(x) (void *)G(x,8)
 #define SETFLD(x,y,z) G(x,8)->y = z
 #define SETFLDVEC(x,y,v,z) G(x,8)->y[v] = z
 #define SETOP(x,y,z) G(x,8) z y
 #define SETCASTPTR(x,y) G(x,8) = (uint8_t *)(y)
 #define STRLEN(p) (int)strlen((char *)p)
 #define SUB1(a,b) G(a,8)(G(b,8))
 #define SUB2(a,b,c) G(a,8)(G(b,8),G(c,8))
 #define TEST(x,r,y) (G(x,8) r (y))
 #define TESTFLD(x,f,r,y) (G(x,8)->f r (y))


 /* ----- Only 16-bit mode is supported ----- */

 #elif defined SUPPORT_PCRE2_16
 #define CASTFLD(t,a,b) (t)(G(a,16)->b)
 #define CASTVAR(t,x) (t)G(x,16)
 #define CODE_UNIT(a,b) (uint32_t)(((PCRE2_SPTR16)(a))[b])
 #define CONCTXCPY(a,b) memcpy(G(a,16),G(b,16),sizeof(pcre2_convert_context_16))
 #define CONVERT_COPY(a,b,c) memcpy(G(a,16),(char *)b, (c)*2)
 #define DATCTXCPY(a,b) memcpy(G(a,16),G(b,16),sizeof(pcre2_match_context_16))
 #define FLD(a,b) G(a,16)->b
 #define PATCTXCPY(a,b) memcpy(G(a,16),G(b,16),sizeof(pcre2_compile_context_16))
 #define PCHARS(lv, p, offset, len, utf, f) \
   lv = pchars16((PCRE2_SPTR16)(p)+offset, len, utf, f)
 #define PCHARSV(p, offset, len, utf, f) \
   (void)pchars16((PCRE2_SPTR16)(p)+offset, len, utf, f)
 #define PCRE2_CALLOUT_ENUMERATE(a,b,c) \
    a = pcre2_callout_enumerate_16(compiled_code16, \
      (int (*)(struct pcre2_callout_enumerate_block_16 *, void *))b,c)
 #define PCRE2_CODE_COPY_FROM_VOID(a,b) G(a,16) = pcre2_code_copy_16(b)
 #define PCRE2_CODE_COPY_TO_VOID(a,b) a = (void *)pcre2_code_copy_16(G(b,16))
 #define PCRE2_CODE_COPY_WITH_TABLES_TO_VOID(a,b) a = (void *)pcre2_code_copy_with_tables_16(G(b,16))
 #define PCRE2_COMPILE(a,b,c,d,e,f,g) \
   G(a,16) = pcre2_compile_16(G(b,16),c,d,e,f,g)
 #define PCRE2_CONVERTED_PATTERN_FREE(a) \
   pcre2_converted_pattern_free_16((PCRE2_UCHAR16 *)a)
 #define PCRE2_DFA_MATCH(a,b,c,d,e,f,g,h,i,j) \
   a = pcre2_dfa_match_16(G(b,16),(PCRE2_SPTR16)c,d,e,f,G(g,16),h,i,j)
 #define PCRE2_GET_ERROR_MESSAGE(r,a,b) \
   r = pcre2_get_error_message_16(a,G(b,16),G(G(b,16),_size/2))
 #define PCRE2_GET_OVECTOR_COUNT(a,b) a = pcre2_get_ovector_count_16(G(b,16))
 #define PCRE2_GET_STARTCHAR(a,b) a = pcre2_get_startchar_16(G(b,16))
 #define PCRE2_JIT_COMPILE(r,a,b) r = pcre2_jit_compile_16(G(a,16),b)
 #define PCRE2_JIT_FREE_UNUSED_MEMORY(a) pcre2_jit_free_unused_memory_16(G(a,16))
 #define PCRE2_JIT_MATCH(a,b,c,d,e,f,g,h) \
   a = pcre2_jit_match_16(G(b,16),(PCRE2_SPTR16)c,d,e,f,G(g,16),h)
 #define PCRE2_JIT_STACK_CREATE(a,b,c,d) \
   a = (PCRE2_JIT_STACK *)pcre2_jit_stack_create_16(b,c,d);
 #define PCRE2_JIT_STACK_ASSIGN(a,b,c) \
   pcre2_jit_stack_assign_16(G(a,16),(pcre2_jit_callback_16)b,c);
 #define PCRE2_JIT_STACK_FREE(a) pcre2_jit_stack_free_16((pcre2_jit_stack_16 *)a);
 #define PCRE2_MAKETABLES(a,c) a = pcre2_maketables_16(G(c,16))
 #define PCRE2_MAKETABLES_FREE(c,a) pcre2_maketables_free_16(G(c,16),a)
 #define PCRE2_MATCH(a,b,c,d,e,f,g,h) \
   a = pcre2_match_16(G(b,16),(PCRE2_SPTR16)c,d,e,f,G(g,16),h)
 #define PCRE2_MATCH_DATA_CREATE(a,b,c) G(a,16) = pcre2_match_data_create_16(b,G(c,16))
 #define PCRE2_MATCH_DATA_CREATE_FROM_PATTERN(a,b,c) \
   G(a,16) = pcre2_match_data_create_from_pattern_16(G(b,16),G(c,16))
 #define PCRE2_MATCH_DATA_FREE(a) pcre2_match_data_free_16(G(a,16))
 #define PCRE2_PATTERN_CONVERT(a,b,c,d,e,f,g) a = pcre2_pattern_convert_16(G(b,16),c,d,(PCRE2_UCHAR16 **)e,f,G(g,16))
 #define PCRE2_PATTERN_INFO(a,b,c,d) a = pcre2_pattern_info_16(G(b,16),c,d)
 #define PCRE2_PRINTINT(a) pcre2_printint_16(compiled_code16,outfile,a)
 #define PCRE2_SERIALIZE_DECODE(r,a,b,c,d) \
   r = pcre2_serialize_decode_16((pcre2_code_16 **)a,b,c,G(d,16))
 #define PCRE2_SERIALIZE_ENCODE(r,a,b,c,d,e) \
   r = pcre2_serialize_encode_16((const pcre2_code_16 **)a,b,c,d,G(e,16))
 #define PCRE2_SERIALIZE_FREE(a) pcre2_serialize_free_16(a)
 #define PCRE2_SERIALIZE_GET_NUMBER_OF_CODES(r,a) \
   r = pcre2_serialize_get_number_of_codes_16(a)
 #define PCRE2_SET_CALLOUT(a,b,c) \
   pcre2_set_callout_16(G(a,16),(int (*)(pcre2_callout_block_16 *, void *))b,c);
 #define PCRE2_SET_CHARACTER_TABLES(a,b) pcre2_set_character_tables_16(G(a,16),b)
 #define PCRE2_SET_COMPILE_RECURSION_GUARD(a,b,c) \
   pcre2_set_compile_recursion_guard_16(G(a,16),b,c)
 #define PCRE2_SET_DEPTH_LIMIT(a,b) pcre2_set_depth_limit_16(G(a,16),b)
 #define PCRE2_SET_GLOB_ESCAPE(r,a,b) r = pcre2_set_glob_escape_16(G(a,16),b)
 #define PCRE2_SET_GLOB_SEPARATOR(r,a,b) r = pcre2_set_glob_separator_16(G(a,16),b)
 #define PCRE2_SET_HEAP_LIMIT(a,b) pcre2_set_heap_limit_16(G(a,16),b)
 #define PCRE2_SET_MATCH_LIMIT(a,b) pcre2_set_match_limit_16(G(a,16),b)
 #define PCRE2_SET_MAX_PATTERN_LENGTH(a,b) pcre2_set_max_pattern_length_16(G(a,16),b)
 #define PCRE2_SET_OFFSET_LIMIT(a,b) pcre2_set_offset_limit_16(G(a,16),b)
 #define PCRE2_SET_PARENS_NEST_LIMIT(a,b) pcre2_set_parens_nest_limit_16(G(a,16),b)
 #define PCRE2_SET_SUBSTITUTE_CALLOUT(a,b,c) \
   pcre2_set_substitute_callout_16(G(a,16), \
     (int (*)(pcre2_substitute_callout_block_16 *, void *))b,c)
 #define PCRE2_SUBSTITUTE(a,b,c,d,e,f,g,h,i,j,k,l) \
   a = pcre2_substitute_16(G(b,16),(PCRE2_SPTR16)c,d,e,f,G(g,16),h, \
     (PCRE2_SPTR16)i,j,(PCRE2_UCHAR16 *)k,l)
 #define PCRE2_SUBSTRING_COPY_BYNAME(a,b,c,d,e) \
   a = pcre2_substring_copy_byname_16(G(b,16),G(c,16),(PCRE2_UCHAR16 *)d,e)
 #define PCRE2_SUBSTRING_COPY_BYNUMBER(a,b,c,d,e) \
   a = pcre2_substring_copy_bynumber_16(G(b,16),c,(PCRE2_UCHAR16 *)d,e)
 #define PCRE2_SUBSTRING_FREE(a) pcre2_substring_free_16((PCRE2_UCHAR16 *)a)
 #define PCRE2_SUBSTRING_GET_BYNAME(a,b,c,d,e) \
   a = pcre2_substring_get_byname_16(G(b,16),G(c,16),(PCRE2_UCHAR16 **)d,e)
 #define PCRE2_SUBSTRING_GET_BYNUMBER(a,b,c,d,e) \
   a = pcre2_substring_get_bynumber_16(G(b,16),c,(PCRE2_UCHAR16 **)d,e)
 #define PCRE2_SUBSTRING_LENGTH_BYNAME(a,b,c,d) \
     a = pcre2_substring_length_byname_16(G(b,16),G(c,16),d)
 #define PCRE2_SUBSTRING_LENGTH_BYNUMBER(a,b,c,d) \
     a = pcre2_substring_length_bynumber_16(G(b,16),c,d)
 #define PCRE2_SUBSTRING_LIST_GET(a,b,c,d) \
   a = pcre2_substring_list_get_16(G(b,16),(PCRE2_UCHAR16 ***)c,d)
 #define PCRE2_SUBSTRING_LIST_FREE(a) \
   pcre2_substring_list_free_16((PCRE2_SPTR16 *)a)
 #define PCRE2_SUBSTRING_NUMBER_FROM_NAME(a,b,c) \
   a = pcre2_substring_number_from_name_16(G(b,16),G(c,16));
 #define PTR(x) (void *)G(x,16)
 #define SETFLD(x,y,z) G(x,16)->y = z
 #define SETFLDVEC(x,y,v,z) G(x,16)->y[v] = z
 #define SETOP(x,y,z) G(x,16) z y
 #define SETCASTPTR(x,y) G(x,16) = (uint16_t *)(y)
 #define STRLEN(p) (int)strlen16((PCRE2_SPTR16)p)
 #define SUB1(a,b) G(a,16)(G(b,16))
 #define SUB2(a,b,c) G(a,16)(G(b,16),G(c,16))
 #define TEST(x,r,y) (G(x,16) r (y))
 #define TESTFLD(x,f,r,y) (G(x,16)->f r (y))


 /* ----- Only 32-bit mode is supported ----- */

 #elif defined SUPPORT_PCRE2_32
 #define CASTFLD(t,a,b) (t)(G(a,32)->b)
 #define CASTVAR(t,x) (t)G(x,32)
 #define CODE_UNIT(a,b) (uint32_t)(((PCRE2_SPTR32)(a))[b])
 #define CONCTXCPY(a,b) memcpy(G(a,32),G(b,32),sizeof(pcre2_convert_context_32))
 #define CONVERT_COPY(a,b,c) memcpy(G(a,32),(char *)b, (c)*4)
 #define DATCTXCPY(a,b) memcpy(G(a,32),G(b,32),sizeof(pcre2_match_context_32))
 #define FLD(a,b) G(a,32)->b
 #define PATCTXCPY(a,b) memcpy(G(a,32),G(b,32),sizeof(pcre2_compile_context_32))
 #define PCHARS(lv, p, offset, len, utf, f) \
   lv = pchars32((PCRE2_SPTR32)(p)+offset, len, utf, f)
 #define PCHARSV(p, offset, len, utf, f) \
   (void)pchars32((PCRE2_SPTR32)(p)+offset, len, utf, f)
 #define PCRE2_CALLOUT_ENUMERATE(a,b,c) \
    a = pcre2_callout_enumerate_32(compiled_code32, \
      (int (*)(struct pcre2_callout_enumerate_block_32 *, void *))b,c)
 #define PCRE2_CODE_COPY_FROM_VOID(a,b) G(a,32) = pcre2_code_copy_32(b)
 #define PCRE2_CODE_COPY_TO_VOID(a,b) a = (void *)pcre2_code_copy_32(G(b,32))
 #define PCRE2_CODE_COPY_WITH_TABLES_TO_VOID(a,b) a = (void *)pcre2_code_copy_with_tables_32(G(b,32))
 #define PCRE2_COMPILE(a,b,c,d,e,f,g) \
   G(a,32) = pcre2_compile_32(G(b,32),c,d,e,f,g)
 #define PCRE2_CONVERTED_PATTERN_FREE(a) \
   pcre2_converted_pattern_free_32((PCRE2_UCHAR32 *)a)
 #define PCRE2_DFA_MATCH(a,b,c,d,e,f,g,h,i,j) \
   a = pcre2_dfa_match_32(G(b,32),(PCRE2_SPTR32)c,d,e,f,G(g,32),h,i,j)
 #define PCRE2_GET_ERROR_MESSAGE(r,a,b) \
   r = pcre2_get_error_message_32(a,G(b,32),G(G(b,32),_size/4))
 #define PCRE2_GET_OVECTOR_COUNT(a,b) a = pcre2_get_ovector_count_32(G(b,32))
 #define PCRE2_GET_STARTCHAR(a,b) a = pcre2_get_startchar_32(G(b,32))
 #define PCRE2_JIT_COMPILE(r,a,b) r = pcre2_jit_compile_32(G(a,32),b)
 #define PCRE2_JIT_FREE_UNUSED_MEMORY(a) pcre2_jit_free_unused_memory_32(G(a,32))
 #define PCRE2_JIT_MATCH(a,b,c,d,e,f,g,h) \
   a = pcre2_jit_match_32(G(b,32),(PCRE2_SPTR32)c,d,e,f,G(g,32),h)
 #define PCRE2_JIT_STACK_CREATE(a,b,c,d) \
   a = (PCRE2_JIT_STACK *)pcre2_jit_stack_create_32(b,c,d);
 #define PCRE2_JIT_STACK_ASSIGN(a,b,c) \
   pcre2_jit_stack_assign_32(G(a,32),(pcre2_jit_callback_32)b,c);
 #define PCRE2_JIT_STACK_FREE(a) pcre2_jit_stack_free_32((pcre2_jit_stack_32 *)a);
 #define PCRE2_MAKETABLES(a,c) a = pcre2_maketables_32(G(c,32))
 #define PCRE2_MAKETABLES_FREE(c,a) pcre2_maketables_free_32(G(c,32),a)
 #define PCRE2_MATCH(a,b,c,d,e,f,g,h) \
   a = pcre2_match_32(G(b,32),(PCRE2_SPTR32)c,d,e,f,G(g,32),h)
 #define PCRE2_MATCH_DATA_CREATE(a,b,c) G(a,32) = pcre2_match_data_create_32(b,G(c,32))
 #define PCRE2_MATCH_DATA_CREATE_FROM_PATTERN(a,b,c) \
   G(a,32) = pcre2_match_data_create_from_pattern_32(G(b,32),G(c,32))
 #define PCRE2_MATCH_DATA_FREE(a) pcre2_match_data_free_32(G(a,32))
 #define PCRE2_PATTERN_CONVERT(a,b,c,d,e,f,g) a = pcre2_pattern_convert_32(G(b,32),c,d,(PCRE2_UCHAR32 **)e,f,G(g,32))
 #define PCRE2_PATTERN_INFO(a,b,c,d) a = pcre2_pattern_info_32(G(b,32),c,d)
 #define PCRE2_PRINTINT(a) pcre2_printint_32(compiled_code32,outfile,a)
 #define PCRE2_SERIALIZE_DECODE(r,a,b,c,d) \
   r = pcre2_serialize_decode_32((pcre2_code_32 **)a,b,c,G(d,32))
 #define PCRE2_SERIALIZE_ENCODE(r,a,b,c,d,e) \
   r = pcre2_serialize_encode_32((const pcre2_code_32 **)a,b,c,d,G(e,32))
 #define PCRE2_SERIALIZE_FREE(a) pcre2_serialize_free_32(a)
 #define PCRE2_SERIALIZE_GET_NUMBER_OF_CODES(r,a) \
   r = pcre2_serialize_get_number_of_codes_32(a)
 #define PCRE2_SET_CALLOUT(a,b,c) \
   pcre2_set_callout_32(G(a,32),(int (*)(pcre2_callout_block_32 *, void *))b,c)
 #define PCRE2_SET_CHARACTER_TABLES(a,b) pcre2_set_character_tables_32(G(a,32),b)
 #define PCRE2_SET_COMPILE_RECURSION_GUARD(a,b,c) \
   pcre2_set_compile_recursion_guard_32(G(a,32),b,c)
 #define PCRE2_SET_DEPTH_LIMIT(a,b) pcre2_set_depth_limit_32(G(a,32),b)
 #define PCRE2_SET_GLOB_ESCAPE(r,a,b) r = pcre2_set_glob_escape_32(G(a,32),b)
 #define PCRE2_SET_GLOB_SEPARATOR(r,a,b) r = pcre2_set_glob_separator_32(G(a,32),b)
 #define PCRE2_SET_HEAP_LIMIT(a,b) pcre2_set_heap_limit_32(G(a,32),b)
 #define PCRE2_SET_MATCH_LIMIT(a,b) pcre2_set_match_limit_32(G(a,32),b)
 #define PCRE2_SET_MAX_PATTERN_LENGTH(a,b) pcre2_set_max_pattern_length_32(G(a,32),b)
 #define PCRE2_SET_OFFSET_LIMIT(a,b) pcre2_set_offset_limit_32(G(a,32),b)
 #define PCRE2_SET_PARENS_NEST_LIMIT(a,b) pcre2_set_parens_nest_limit_32(G(a,32),b)
 #define PCRE2_SET_SUBSTITUTE_CALLOUT(a,b,c) \
   pcre2_set_substitute_callout_32(G(a,32), \
     (int (*)(pcre2_substitute_callout_block_32 *, void *))b,c)
 #define PCRE2_SUBSTITUTE(a,b,c,d,e,f,g,h,i,j,k,l) \
   a = pcre2_substitute_32(G(b,32),(PCRE2_SPTR32)c,d,e,f,G(g,32),h, \
     (PCRE2_SPTR32)i,j,(PCRE2_UCHAR32 *)k,l)
 #define PCRE2_SUBSTRING_COPY_BYNAME(a,b,c,d,e) \
   a = pcre2_substring_copy_byname_32(G(b,32),G(c,32),(PCRE2_UCHAR32 *)d,e)
 #define PCRE2_SUBSTRING_COPY_BYNUMBER(a,b,c,d,e) \
   a = pcre2_substring_copy_bynumber_32(G(b,32),c,(PCRE2_UCHAR32 *)d,e);
 #define PCRE2_SUBSTRING_FREE(a) pcre2_substring_free_32((PCRE2_UCHAR32 *)a)
 #define PCRE2_SUBSTRING_GET_BYNAME(a,b,c,d,e) \
   a = pcre2_substring_get_byname_32(G(b,32),G(c,32),(PCRE2_UCHAR32 **)d,e)
 #define PCRE2_SUBSTRING_GET_BYNUMBER(a,b,c,d,e) \
   a = pcre2_substring_get_bynumber_32(G(b,32),c,(PCRE2_UCHAR32 **)d,e)
 #define PCRE2_SUBSTRING_LENGTH_BYNAME(a,b,c,d) \
     a = pcre2_substring_length_byname_32(G(b,32),G(c,32),d)
 #define PCRE2_SUBSTRING_LENGTH_BYNUMBER(a,b,c,d) \
     a = pcre2_substring_length_bynumber_32(G(b,32),c,d)
 #define PCRE2_SUBSTRING_LIST_GET(a,b,c,d) \
   a = pcre2_substring_list_get_32(G(b,32),(PCRE2_UCHAR32 ***)c,d)
 #define PCRE2_SUBSTRING_LIST_FREE(a) \
   pcre2_substring_list_free_32((PCRE2_SPTR32 *)a)
 #define PCRE2_SUBSTRING_NUMBER_FROM_NAME(a,b,c) \
   a = pcre2_substring_number_from_name_32(G(b,32),G(c,32));
 #define PTR(x) (void *)G(x,32)
 #define SETFLD(x,y,z) G(x,32)->y = z
 #define SETFLDVEC(x,y,v,z) G(x,32)->y[v] = z
 #define SETOP(x,y,z) G(x,32) z y
 #define SETCASTPTR(x,y) G(x,32) = (uint32_t *)(y)
 #define STRLEN(p) (int)strlen32((PCRE2_SPTR32)p)
 #define SUB1(a,b) G(a,32)(G(b,32))
 #define SUB2(a,b,c) G(a,32)(G(b,32),G(c,32))
 #define TEST(x,r,y) (G(x,32) r (y))
 #define TESTFLD(x,f,r,y) (G(x,32)->f r (y))

 #endif

 /* ----- End of mode-specific function call macros ----- */


 /*************************************************
 *         Alternate character tables             *
 *************************************************/

 /* By default, the "tables" pointer in the compile context when calling
 pcre2_compile() is not set (= NULL), thereby using the default tables of the
 library. However, the tables modifier can be used to select alternate sets of
 tables, for different kinds of testing. Note that the locale modifier also
 adjusts the tables. */

 /* This is the set of tables distributed as default with PCRE2. It recognizes
 only ASCII characters. */

 static const uint8_t tables1[] = {

 /* This table is a lower casing table. */

     0,  1,  2,  3,  4,  5,  6,  7,
     8,  9, 10, 11, 12, 13, 14, 15,
    16, 17, 18, 19, 20, 21, 22, 23,
    24, 25, 26, 27, 28, 29, 30, 31,
    32, 33, 34, 35, 36, 37, 38, 39,
    40, 41, 42, 43, 44, 45, 46, 47,
    48, 49, 50, 51, 52, 53, 54, 55,
    56, 57, 58, 59, 60, 61, 62, 63,
    64, 97, 98, 99,100,101,102,103,
   104,105,106,107,108,109,110,111,
   112,113,114,115,116,117,118,119,
   120,121,122, 91, 92, 93, 94, 95,
    96, 97, 98, 99,100,101,102,103,
   104,105,106,107,108,109,110,111,
   112,113,114,115,116,117,118,119,
   120,121,122,123,124,125,126,127,
   128,129,130,131,132,133,134,135,
   136,137,138,139,140,141,142,143,
   144,145,146,147,148,149,150,151,
   152,153,154,155,156,157,158,159,
   160,161,162,163,164,165,166,167,
   168,169,170,171,172,173,174,175,
   176,177,178,179,180,181,182,183,
   184,185,186,187,188,189,190,191,
   192,193,194,195,196,197,198,199,
   200,201,202,203,204,205,206,207,
   208,209,210,211,212,213,214,215,
   216,217,218,219,220,221,222,223,
   224,225,226,227,228,229,230,231,
   232,233,234,235,236,237,238,239,
   240,241,242,243,244,245,246,247,
   248,249,250,251,252,253,254,255,

 /* This table is a case flipping table. */

     0,  1,  2,  3,  4,  5,  6,  7,
     8,  9, 10, 11, 12, 13, 14, 15,
    16, 17, 18, 19, 20, 21, 22, 23,
    24, 25, 26, 27, 28, 29, 30, 31,
    32, 33, 34, 35, 36, 37, 38, 39,
    40, 41, 42, 43, 44, 45, 46, 47,
    48, 49, 50, 51, 52, 53, 54, 55,
    56, 57, 58, 59, 60, 61, 62, 63,
    64, 97, 98, 99,100,101,102,103,
   104,105,106,107,108,109,110,111,
   112,113,114,115,116,117,118,119,
   120,121,122, 91, 92, 93, 94, 95,
    96, 65, 66, 67, 68, 69, 70, 71,
    72, 73, 74, 75, 76, 77, 78, 79,
    80, 81, 82, 83, 84, 85, 86, 87,
    88, 89, 90,123,124,125,126,127,
   128,129,130,131,132,133,134,135,
   136,137,138,139,140,141,142,143,
   144,145,146,147,148,149,150,151,
   152,153,154,155,156,157,158,159,
   160,161,162,163,164,165,166,167,
   168,169,170,171,172,173,174,175,
   176,177,178,179,180,181,182,183,
   184,185,186,187,188,189,190,191,
   192,193,194,195,196,197,198,199,
   200,201,202,203,204,205,206,207,
   208,209,210,211,212,213,214,215,
   216,217,218,219,220,221,222,223,
   224,225,226,227,228,229,230,231,
   232,233,234,235,236,237,238,239,
   240,241,242,243,244,245,246,247,
   248,249,250,251,252,253,254,255,

 /* This table contains bit maps for various character classes. Each map is 32
 bytes long and the bits run from the least significant end of each byte. The
 classes that have their own maps are: space, xdigit, digit, upper, lower, word,
 graph, print, punct, and cntrl. Other classes are built from combinations. */

   0x00,0x3e,0x00,0x00,0x01,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
   0x7e,0x00,0x00,0x00,0x7e,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0xfe,0xff,0xff,0x07,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0xfe,0xff,0xff,0x07,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
   0xfe,0xff,0xff,0x87,0xfe,0xff,0xff,0x07,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0x00,0x00,0x00,0x00,0xfe,0xff,0xff,0xff,
   0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,
   0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0x00,0x00,0x00,0x00,0xfe,0xff,0x00,0xfc,
   0x01,0x00,0x00,0xf8,0x01,0x00,0x00,0x78,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

   0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

 /* This table identifies various classes of character by individual bits:
   0x01   white space character
   0x02   letter
   0x04   decimal digit
   0x08   hexadecimal digit
   0x10   alphanumeric or '_'
   0x80   regular expression metacharacter or binary zero
 */

   0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*   0-  7 */
   0x00,0x01,0x01,0x01,0x01,0x01,0x00,0x00, /*   8- 15 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  16- 23 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  24- 31 */
   0x01,0x00,0x00,0x00,0x80,0x00,0x00,0x00, /*    - '  */
   0x80,0x80,0x80,0x80,0x00,0x00,0x80,0x00, /*  ( - /  */
   0x1c,0x1c,0x1c,0x1c,0x1c,0x1c,0x1c,0x1c, /*  0 - 7  */
   0x1c,0x1c,0x00,0x00,0x00,0x00,0x00,0x80, /*  8 - ?  */
   0x00,0x1a,0x1a,0x1a,0x1a,0x1a,0x1a,0x12, /*  @ - G  */
   0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  H - O  */
   0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  P - W  */
   0x12,0x12,0x12,0x80,0x80,0x00,0x80,0x10, /*  X - _  */
   0x00,0x1a,0x1a,0x1a,0x1a,0x1a,0x1a,0x12, /*  ` - g  */
   0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  h - o  */
   0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  p - w  */
   0x12,0x12,0x12,0x80,0x80,0x00,0x00,0x00, /*  x -127 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 128-135 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 136-143 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 144-151 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 152-159 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 160-167 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 168-175 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 176-183 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 184-191 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 192-199 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 200-207 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 208-215 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 216-223 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 224-231 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 232-239 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 240-247 */
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};/* 248-255 */

 /* This is a set of tables that came originally from a Windows user. It seems
 to be at least an approximation of ISO 8859. In particular, there are
 characters greater than 128 that are marked as spaces, letters, etc. */

 static const uint8_t tables2[] = {
 0,1,2,3,4,5,6,7,
 8,9,10,11,12,13,14,15,
 16,17,18,19,20,21,22,23,
 24,25,26,27,28,29,30,31,
 32,33,34,35,36,37,38,39,
 40,41,42,43,44,45,46,47,
 48,49,50,51,52,53,54,55,
 56,57,58,59,60,61,62,63,
 64,97,98,99,100,101,102,103,
 104,105,106,107,108,109,110,111,
 112,113,114,115,116,117,118,119,
 120,121,122,91,92,93,94,95,
 96,97,98,99,100,101,102,103,
 104,105,106,107,108,109,110,111,
 112,113,114,115,116,117,118,119,
 120,121,122,123,124,125,126,127,
 128,129,130,131,132,133,134,135,
 136,137,138,139,140,141,142,143,
 144,145,146,147,148,149,150,151,
 152,153,154,155,156,157,158,159,
 160,161,162,163,164,165,166,167,
 168,169,170,171,172,173,174,175,
 176,177,178,179,180,181,182,183,
 184,185,186,187,188,189,190,191,
 224,225,226,227,228,229,230,231,
 232,233,234,235,236,237,238,239,
 240,241,242,243,244,245,246,215,
 248,249,250,251,252,253,254,223,
 224,225,226,227,228,229,230,231,
 232,233,234,235,236,237,238,239,
 240,241,242,243,244,245,246,247,
 248,249,250,251,252,253,254,255,
 0,1,2,3,4,5,6,7,
 8,9,10,11,12,13,14,15,
 16,17,18,19,20,21,22,23,
 24,25,26,27,28,29,30,31,
 32,33,34,35,36,37,38,39,
 40,41,42,43,44,45,46,47,
 48,49,50,51,52,53,54,55,
 56,57,58,59,60,61,62,63,
 64,97,98,99,100,101,102,103,
 104,105,106,107,108,109,110,111,
 112,113,114,115,116,117,118,119,
 120,121,122,91,92,93,94,95,
 96,65,66,67,68,69,70,71,
 72,73,74,75,76,77,78,79,
 80,81,82,83,84,85,86,87,
 88,89,90,123,124,125,126,127,
 128,129,130,131,132,133,134,135,
 136,137,138,139,140,141,142,143,
 144,145,146,147,148,149,150,151,
 152,153,154,155,156,157,158,159,
 160,161,162,163,164,165,166,167,
 168,169,170,171,172,173,174,175,
 176,177,178,179,180,181,182,183,
 184,185,186,187,188,189,190,191,
 224,225,226,227,228,229,230,231,
 232,233,234,235,236,237,238,239,
 240,241,242,243,244,245,246,215,
 248,249,250,251,252,253,254,223,
 192,193,194,195,196,197,198,199,
 200,201,202,203,204,205,206,207,
 208,209,210,211,212,213,214,247,
 216,217,218,219,220,221,222,255,
 0,62,0,0,1,0,0,0,
 0,0,0,0,0,0,0,0,
 32,0,0,0,1,0,0,0,
 0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,255,3,
 126,0,0,0,126,0,0,0,
 0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,255,3,
 0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,12,2,
 0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,
 254,255,255,7,0,0,0,0,
 0,0,0,0,0,0,0,0,
 255,255,127,127,0,0,0,0,
 0,0,0,0,0,0,0,0,
 0,0,0,0,254,255,255,7,
 0,0,0,0,0,4,32,4,
 0,0,0,128,255,255,127,255,
 0,0,0,0,0,0,255,3,
 254,255,255,135,254,255,255,7,
 0,0,0,0,0,4,44,6,
 255,255,127,255,255,255,127,255,
 0,0,0,0,254,255,255,255,
 255,255,255,255,255,255,255,127,
 0,0,0,0,254,255,255,255,
 255,255,255,255,255,255,255,255,
 0,2,0,0,255,255,255,255,
 255,255,255,255,255,255,255,127,
 0,0,0,0,255,255,255,255,
 255,255,255,255,255,255,255,255,
 0,0,0,0,254,255,0,252,
 1,0,0,248,1,0,0,120,
 0,0,0,0,254,255,255,255,
 0,0,128,0,0,0,128,0,
 255,255,255,255,0,0,0,0,
 0,0,0,0,0,0,0,128,
 255,255,255,255,0,0,0,0,
 0,0,0,0,0,0,0,0,
 128,0,0,0,0,0,0,0,
 0,1,1,0,1,1,0,0,
 0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,
 1,0,0,0,128,0,0,0,
 128,128,128,128,0,0,128,0,
 28,28,28,28,28,28,28,28,
 28,28,0,0,0,0,0,128,
 0,26,26,26,26,26,26,18,
 18,18,18,18,18,18,18,18,
 18,18,18,18,18,18,18,18,
 18,18,18,128,128,0,128,16,
 0,26,26,26,26,26,26,18,
 18,18,18,18,18,18,18,18,
 18,18,18,18,18,18,18,18,
 18,18,18,128,128,0,0,0,
 0,0,0,0,0,1,0,0,
 0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,
 1,0,0,0,0,0,0,0,
 0,0,18,0,0,0,0,0,
 0,0,20,20,0,18,0,0,
 0,20,18,0,0,0,0,0,
 18,18,18,18,18,18,18,18,
 18,18,18,18,18,18,18,18,
 18,18,18,18,18,18,18,0,
 18,18,18,18,18,18,18,18,
 18,18,18,18,18,18,18,18,
 18,18,18,18,18,18,18,18,
 18,18,18,18,18,18,18,0,
 18,18,18,18,18,18,18,18
 };


 #if !defined(VPCOMPAT) && !defined(HAVE_MEMMOVE)
 /*************************************************
 *    Emulated memmove() for systems without it   *
 *************************************************/

 /* This function can make use of bcopy() if it is available. Otherwise do it by
 steam, as there are some non-Unix environments that lack both memmove() and
 bcopy(). */

 static void *
 emulated_memmove(void *d, const void *s, size_t n)
 {
 #ifdef HAVE_BCOPY
 bcopy(s, d, n);
 return d;
 #else
 size_t i;
 unsigned char *dest = (unsigned char *)d;
 const unsigned char *src = (const unsigned char *)s;
 if (dest > src)
   {
   dest += n;
   src += n;
   for (i = 0; i < n; ++i) *(--dest) = *(--src);
   return (void *)dest;
   }
 else
   {
   for (i = 0; i < n; ++i) *dest++ = *src++;
   return (void *)(dest - n);
   }
 #endif   /* not HAVE_BCOPY */
 }
 #undef memmove
 #define memmove(d,s,n) emulated_memmove(d,s,n)
 #endif   /* not VPCOMPAT && not HAVE_MEMMOVE */


 #ifndef HAVE_STRERROR
 /*************************************************
 *     Provide strerror() for non-ANSI libraries  *
 *************************************************/

 /* Some old-fashioned systems (e.g. SunOS4) didn't have strerror() in their
 libraries. They may no longer be around, but just in case, we can try to
 provide the same facility by this simple alternative function. */

 extern int   sys_nerr;
 extern char *sys_errlist[];

 char *
 strerror(int n)
 {
 if (n < 0 || n >= sys_nerr) return "unknown error number";
 return sys_errlist[n];
 }
 #endif /* HAVE_STRERROR */


 /*************************************************
 *            Local memory functions              *
 *************************************************/

 /* Alternative memory functions, to test functionality. */

 static void *my_malloc(PCRE2_SIZE size, void *data)
 {
 void *block = malloc(size);
 (void)data;
 if (show_memory)
   {
   if (block == NULL)
     {
     fprintf(outfile, "** malloc() failed for %" SIZ_FORM "\n", size);
     }
   else
     {
     fprintf(outfile, "malloc  %5" SIZ_FORM, size);
 #ifdef DEBUG_SHOW_MALLOC_ADDRESSES
     fprintf(outfile, " %p", block);   /* Not portable */
 #endif
     if (malloclistptr < MALLOCLISTSIZE)
       {
       malloclist[malloclistptr] = block;
       malloclistlength[malloclistptr++] = size;
       }
     else
       fprintf(outfile, " (not remembered)");
     fprintf(outfile, "\n");
     }
   }
 return block;
 }

 static void my_free(void *block, void *data)
 {
 (void)data;
 if (show_memory && block != NULL)
   {
   uint32_t i, j;
   BOOL found = FALSE;

   fprintf(outfile, "free");
   for (i = 0; i < malloclistptr; i++)
     {
     if (block == malloclist[i])
       {
       fprintf(outfile, "    %5" SIZ_FORM, malloclistlength[i]);
       malloclistptr--;
       for (j = i; j < malloclistptr; j++)
         {
         malloclist[j] = malloclist[j+1];
         malloclistlength[j] = malloclistlength[j+1];
         }
       found = TRUE;
       break;
       }
     }
   if (!found) fprintf(outfile, " unremembered block");
 #ifdef DEBUG_SHOW_MALLOC_ADDRESSES
   fprintf(outfile, " %p", block);  /* Not portable */
 #endif
   fprintf(outfile, "\n");
   }
 free(block);
 }


 /*************************************************
 *       Callback function for stack guard        *
 *************************************************/

 /* This is set up to be called from pcre2_compile() when the stackguard=n
 modifier sets a value greater than zero. The test we do is whether the
 parenthesis nesting depth is greater than the value set by the modifier.

 Argument:  the current parenthesis nesting depth
 Returns:   non-zero to kill the compilation
 */

 static int
 stack_guard(uint32_t depth, void *user_data)
 {
 (void)user_data;
 return depth > pat_patctl.stackguard_test;
 }


 /*************************************************
 *         JIT memory callback                    *
 *************************************************/

 static PCRE2_JIT_STACK*
 jit_callback(void *arg)
 {
 jit_was_used = TRUE;
 return (PCRE2_JIT_STACK *)arg;
 }


 /*************************************************
 *      Convert UTF-8 character to code point     *
 *************************************************/

 /* This function reads one or more bytes that represent a UTF-8 character,
 and returns the codepoint of that character. Note that the function supports
 the original UTF-8 definition of RFC 2279, allowing for values in the range 0
 to 0x7fffffff, up to 6 bytes long. This makes it possible to generate
 codepoints greater than 0x10ffff which are useful for testing PCRE2's error
 checking, and also for generating 32-bit non-UTF data values above the UTF
 limit.

 Argument:
   utf8bytes   a pointer to the byte vector
   vptr        a pointer to an int to receive the value

 Returns:      >  0 => the number of bytes consumed
               -6 to 0 => malformed UTF-8 character at offset = (-return)
 */

 static int
 utf82ord(PCRE2_SPTR8 utf8bytes, uint32_t *vptr)
 {
 uint32_t c = *utf8bytes++;
 uint32_t d = c;
 int i, j, s;

 for (i = -1; i < 6; i++)               /* i is number of additional bytes */
   {
   if ((d & 0x80) == 0) break;
   d <<= 1;
   }

 if (i == -1) { *vptr = c; return 1; }  /* ascii character */
 if (i == 0 || i == 6) return 0;        /* invalid UTF-8 */

 /* i now has a value in the range 1-5 */

 s = 6*i;
 d = (c & utf8_table3[i]) << s;

 for (j = 0; j < i; j++)
   {
   c = *utf8bytes++;
   if ((c & 0xc0) != 0x80) return -(j+1);
   s -= 6;
   d |= (c & 0x3f) << s;
   }

 /* Check that encoding was the correct unique one */

 for (j = 0; j < utf8_table1_size; j++)
   if (d <= (uint32_t)utf8_table1[j]) break;
 if (j != i) return -(i+1);

 /* Valid value */

 *vptr = d;
 return i+1;
 }


 /*************************************************
 *             Print one character                *
 *************************************************/

 /* Print a single character either literally, or as a hex escape, and count how
 many printed characters are used.

 Arguments:
   c            the character
   utf          TRUE in UTF mode
   f            the FILE to print to, or NULL just to count characters

 Returns:       number of characters written
 */

 static int
 pchar(uint32_t c, BOOL utf, FILE *f)
 {
 int n = 0;
 char tempbuffer[16];

 if (PRINTOK(c))
   {
   if (f != NULL) fprintf(f, "%c", c);
   return 1;
   }

 if (c < 0x100)
   {
   if (utf)
     {
     if (f != NULL) fprintf(f, "\\x{%02x}", c);
     return 6;
     }
   else
     {
     if (f != NULL) fprintf(f, "\\x%02x", c);
     return 4;
     }
   }

 if (f != NULL) n = fprintf(f, "\\x{%02x}", c);
   else n = sprintf(tempbuffer, "\\x{%02x}", c);

 return n >= 0 ? n : 0;
 }


 #ifdef SUPPORT_PCRE2_16
 /*************************************************
 *    Find length of 0-terminated 16-bit string   *
 *************************************************/

 static size_t strlen16(PCRE2_SPTR16 p)
 {
 PCRE2_SPTR16 pp = p;
 while (*pp != 0) pp++;
 return (int)(pp - p);
 }
 #endif  /* SUPPORT_PCRE2_16 */


 #ifdef SUPPORT_PCRE2_32
 /*************************************************
 *    Find length of 0-terminated 32-bit string   *
 *************************************************/

 static size_t strlen32(PCRE2_SPTR32 p)
 {
 PCRE2_SPTR32 pp = p;
 while (*pp != 0) pp++;
 return (int)(pp - p);
 }
 #endif  /* SUPPORT_PCRE2_32 */


 #ifdef SUPPORT_PCRE2_8
 /*************************************************
 *         Print 8-bit character string           *
 *************************************************/

 /* Must handle UTF-8 strings in utf8 mode. Yields number of characters printed.
 For printing *MARK strings, a negative length is given, indicating that the
 length is in the first code unit. If handed a NULL file, this function just
 counts chars without printing (because pchar() does that). */

 static int pchars8(PCRE2_SPTR8 p, int length, BOOL utf, FILE *f)
 {
 uint32_t c = 0;
 int yield = 0;
 if (length < 0) length = *p++;
 while (length-- > 0)
   {
   if (utf)
     {
     int rc = utf82ord(p, &c);
     if (rc > 0 && rc <= length + 1)   /* Mustn't run over the end */
       {
       length -= rc - 1;
       p += rc;
       yield += pchar(c, utf, f);
       continue;
       }
     }
   c = *p++;
   yield += pchar(c, utf, f);
   }

 return yield;
 }
 #endif


 #ifdef SUPPORT_PCRE2_16
 /*************************************************
 *           Print 16-bit character string        *
 *************************************************/

 /* Must handle UTF-16 strings in utf mode. Yields number of characters printed.
 For printing *MARK strings, a negative length is given, indicating that the
 length is in the first code unit. If handed a NULL file, just counts chars
 without printing. */

 static int pchars16(PCRE2_SPTR16 p, int length, BOOL utf, FILE *f)
 {
 int yield = 0;
 if (length < 0) length = *p++;
 while (length-- > 0)
   {
   uint32_t c = *p++ & 0xffff;
   if (utf && c >= 0xD800 && c < 0xDC00 && length > 0)
     {
     int d = *p & 0xffff;
     if (d >= 0xDC00 && d <= 0xDFFF)
       {
       c = ((c & 0x3ff) << 10) + (d & 0x3ff) + 0x10000;
       length--;
       p++;
       }
     }
   yield += pchar(c, utf, f);
   }
 return yield;
 }
 #endif  /* SUPPORT_PCRE2_16 */


 #ifdef SUPPORT_PCRE2_32
 /*************************************************
 *           Print 32-bit character string        *
 *************************************************/

 /* Must handle UTF-32 strings in utf mode. Yields number of characters printed.
 For printing *MARK strings, a negative length is given, indicating that the
 length is in the first code unit. If handed a NULL file, just counts chars
 without printing. */

 static int pchars32(PCRE2_SPTR32 p, int length, BOOL utf, FILE *f)
 {
 int yield = 0;
 (void)(utf);  /* Avoid compiler warning */
 if (length < 0) length = *p++;
 while (length-- > 0)
   {
   uint32_t c = *p++;
   yield += pchar(c, utf, f);
   }
 return yield;
 }
 #endif  /* SUPPORT_PCRE2_32 */


 /*************************************************
 *       Convert character value to UTF-8         *
 *************************************************/

 /* This function takes an integer value in the range 0 - 0x7fffffff
 and encodes it as a UTF-8 character in 0 to 6 bytes. It is needed even when the
 8-bit library is not supported, to generate UTF-8 output for non-ASCII
 characters.

 Arguments:
   cvalue     the character value
   utf8bytes  pointer to buffer for result - at least 6 bytes long

 Returns:     number of characters placed in the buffer
 */

 static int
 ord2utf8(uint32_t cvalue, uint8_t *utf8bytes)
 {
 int i, j;
 if (cvalue > 0x7fffffffu)
   return -1;
 for (i = 0; i < utf8_table1_size; i++)
   if (cvalue <= (uint32_t)utf8_table1[i]) break;
 utf8bytes += i;
 for (j = i; j > 0; j--)
  {
  *utf8bytes-- = 0x80 | (cvalue & 0x3f);
  cvalue >>= 6;
  }
 *utf8bytes = utf8_table2[i] | cvalue;
 return i + 1;
 }


 #ifdef SUPPORT_PCRE2_16
 /*************************************************
 *           Convert string to 16-bit             *
 *************************************************/

 /* In UTF mode the input is always interpreted as a string of UTF-8 bytes using
 the original UTF-8 definition of RFC 2279, which allows for up to 6 bytes, and
 code values from 0 to 0x7fffffff. However, values greater than the later UTF
 limit of 0x10ffff cause an error. In non-UTF mode the input is interpreted as
 UTF-8 if the utf8_input modifier is set, but an error is generated for values
 greater than 0xffff.

 If all the input bytes are ASCII, the space needed for a 16-bit string is
 exactly double the 8-bit size. Otherwise, the size needed for a 16-bit string
 is no more than double, because up to 0xffff uses no more than 3 bytes in UTF-8
 but possibly 4 in UTF-16. Higher values use 4 bytes in UTF-8 and up to 4 bytes
 in UTF-16. The result is always left in pbuffer16. Impose a minimum size to
 save repeated re-sizing.

 Note that this function does not object to surrogate values. This is
 deliberate; it makes it possible to construct UTF-16 strings that are invalid,
 for the purpose of testing that they are correctly faulted.

 Arguments:
   p          points to a byte string
   utf        true in UTF mode
   lenptr     points to number of bytes in the string (excluding trailing zero)

 Returns:     0 on success, with the length updated to the number of 16-bit
                data items used (excluding the trailing zero)
              OR -1 if a UTF-8 string is malformed
              OR -2 if a value > 0x10ffff is encountered in UTF mode
              OR -3 if a value > 0xffff is encountered when not in UTF mode
 */

 static int
 to16(uint8_t *p, int utf, PCRE2_SIZE *lenptr)
 {
 uint16_t *pp;
 PCRE2_SIZE len = *lenptr;

 if (pbuffer16_size < 2*len + 2)
   {
   if (pbuffer16 != NULL) free(pbuffer16);
   pbuffer16_size = 2*len + 2;
   if (pbuffer16_size < 4096) pbuffer16_size = 4096;
   pbuffer16 = (uint16_t *)malloc(pbuffer16_size);
   if (pbuffer16 == NULL)
     {
     fprintf(stderr, "pcre2test: malloc(%" SIZ_FORM ") failed for pbuffer16\n",
       pbuffer16_size);
     exit(1);
     }
   }

 pp = pbuffer16;
 if (!utf && (pat_patctl.control & CTL_UTF8_INPUT) == 0)
   {
   for (; len > 0; len--) *pp++ = *p++;
   }
 else while (len > 0)
   {
   uint32_t c;
   int chlen = utf82ord(p, &c);
   if (chlen <= 0) return -1;
   if (!utf && c > 0xffff) return -3;
   if (c > 0x10ffff) return -2;
   p += chlen;
   len -= chlen;
   if (c < 0x10000) *pp++ = c; else
     {
     c -= 0x10000;
     *pp++ = 0xD800 | (c >> 10);
     *pp++ = 0xDC00 | (c & 0x3ff);
     }
   }

 *pp = 0;
 *lenptr = pp - pbuffer16;
 return 0;
 }
 #endif


 #ifdef SUPPORT_PCRE2_32
 /*************************************************
 *           Convert string to 32-bit             *
 *************************************************/

 /* In UTF mode the input is always interpreted as a string of UTF-8 bytes using
 the original UTF-8 definition of RFC 2279, which allows for up to 6 bytes, and
 code values from 0 to 0x7fffffff. However, values greater than the later UTF
 limit of 0x10ffff cause an error.

 In non-UTF mode the input is interpreted as UTF-8 if the utf8_input modifier
 is set, and no limit is imposed. There is special interpretation of the 0xff
 byte (which is illegal in UTF-8) in this case: it causes the top bit of the
 next character to be set. This provides a way of generating 32-bit characters
 greater than 0x7fffffff.

 If all the input bytes are ASCII, the space needed for a 32-bit string is
 exactly four times the 8-bit size. Otherwise, the size needed for a 32-bit
 string is no more than four times, because the number of characters must be
 less than the number of bytes. The result is always left in pbuffer32. Impose a
 minimum size to save repeated re-sizing.

 Note that this function does not object to surrogate values. This is
 deliberate; it makes it possible to construct UTF-32 strings that are invalid,
 for the purpose of testing that they are correctly faulted.

 Arguments:
   p          points to a byte string
   utf        true in UTF mode
   lenptr     points to number of bytes in the string (excluding trailing zero)

 Returns:     0 on success, with the length updated to the number of 32-bit
                data items used (excluding the trailing zero)
              OR -1 if a UTF-8 string is malformed
              OR -2 if a value > 0x10ffff is encountered in UTF mode
 */

 static int
 to32(uint8_t *p, int utf, PCRE2_SIZE *lenptr)
 {
 uint32_t *pp;
 PCRE2_SIZE len = *lenptr;

 if (pbuffer32_size < 4*len + 4)
   {
   if (pbuffer32 != NULL) free(pbuffer32);
   pbuffer32_size = 4*len + 4;
   if (pbuffer32_size < 8192) pbuffer32_size = 8192;
   pbuffer32 = (uint32_t *)malloc(pbuffer32_size);
   if (pbuffer32 == NULL)
     {
     fprintf(stderr, "pcre2test: malloc(%" SIZ_FORM ") failed for pbuffer32\n",
       pbuffer32_size);
     exit(1);
     }
   }

 pp = pbuffer32;

 if (!utf && (pat_patctl.control & CTL_UTF8_INPUT) == 0)
   {
   for (; len > 0; len--) *pp++ = *p++;
   }

 else while (len > 0)
   {
   int chlen;
   uint32_t c;
   uint32_t topbit = 0;
   if (!utf && *p == 0xff && len > 1)
     {
     topbit = 0x80000000u;
     p++;
     len--;
     }
   chlen = utf82ord(p, &c);
   if (chlen <= 0) return -1;
   if (utf && c > 0x10ffff) return -2;
   p += chlen;
   len -= chlen;
   *pp++ = c | topbit;
   }

 *pp = 0;
 *lenptr = pp - pbuffer32;
 return 0;
 }
 #endif /* SUPPORT_PCRE2_32 */


 /* This function is no longer used. Keep it around for a while, just in case it
 needs to be re-instated. */

 #ifdef NEVERNEVERNEVER

 /*************************************************
 *         Move back by so many characters        *
 *************************************************/

 /* Given a code unit offset in a subject string, move backwards by a number of
 characters, and return the resulting offset.

 Arguments:
   subject   pointer to the string
   offset    start offset
   count     count to move back by
   utf       TRUE if in UTF mode

 Returns:   a possibly changed offset
 */

 static PCRE2_SIZE
 backchars(uint8_t *subject, PCRE2_SIZE offset, uint32_t count, BOOL utf)
 {
 if (!utf || test_mode == PCRE32_MODE)
   return (count >= offset)? 0 : (offset - count);

 else if (test_mode == PCRE8_MODE)
   {
   PCRE2_SPTR8 pp = (PCRE2_SPTR8)subject + offset;
   for (; count > 0 && pp > (PCRE2_SPTR8)subject; count--)
     {
     pp--;
     while ((*pp & 0xc0) == 0x80) pp--;
     }
   return pp - (PCRE2_SPTR8)subject;
   }

 else  /* 16-bit mode */
   {
   PCRE2_SPTR16 pp = (PCRE2_SPTR16)subject + offset;
   for (; count > 0 && pp > (PCRE2_SPTR16)subject; count--)
     {
     pp--;
     if ((*pp & 0xfc00) == 0xdc00) pp--;
     }
   return pp - (PCRE2_SPTR16)subject;
   }
 }
 #endif  /* NEVERNEVERNEVER */


 /*************************************************
 *           Expand input buffers                 *
 *************************************************/

 /* This function doubles the size of the input buffer and the buffer for
 keeping an 8-bit copy of patterns (pbuffer8), and copies the current buffers to
 the new ones.

 Arguments: none
 Returns:   nothing (aborts if malloc() fails)
 */

 static void
 expand_input_buffers(void)
 {
 int new_pbuffer8_size = 2*pbuffer8_size;
 uint8_t *new_buffer = (uint8_t *)malloc(new_pbuffer8_size);
 uint8_t *new_pbuffer8 = (uint8_t *)malloc(new_pbuffer8_size);

 if (new_buffer == NULL || new_pbuffer8 == NULL)
   {
   fprintf(stderr, "pcre2test: malloc(%d) failed\n", new_pbuffer8_size);
   exit(1);
   }

 memcpy(new_buffer, buffer, pbuffer8_size);
 memcpy(new_pbuffer8, pbuffer8, pbuffer8_size);

 pbuffer8_size = new_pbuffer8_size;

 free(buffer);
 free(pbuffer8);

 buffer = new_buffer;
 pbuffer8 = new_pbuffer8;
 }


 /*************************************************
 *        Read or extend an input line            *
 *************************************************/

 /* Input lines are read into buffer, but both patterns and data lines can be
 continued over multiple input lines. In addition, if the buffer fills up, we
 want to automatically expand it so as to be able to handle extremely large
 lines that are needed for certain stress tests, although this is less likely
 now that there are repetition features for both patterns and data. When the
 input buffer is expanded, the other two buffers must also be expanded likewise,
 and the contents of pbuffer, which are a copy of the input for callouts, must
 be preserved (for when expansion happens for a data line). This is not the most
 optimal way of handling this, but hey, this is just a test program!

 Arguments:
   f            the file to read
   start        where in buffer to start (this *must* be within buffer)
   prompt       for stdin or readline()

 Returns:       pointer to the start of new data
                could be a copy of start, or could be moved
                NULL if no data read and EOF reached
 */

 static uint8_t *
 extend_inputline(FILE *f, uint8_t *start, const char *prompt)
 {
 uint8_t *here = start;

 for (;;)
   {
   size_t rlen = (size_t)(pbuffer8_size - (here - buffer));

   if (rlen > 1000)
     {
     size_t dlen;

     /* If libreadline or libedit support is required, use readline() to read a
     line if the input is a terminal. Note that readline() removes the trailing
     newline, so we must put it back again, to be compatible with fgets(). */

 #if defined(SUPPORT_LIBREADLINE) || defined(SUPPORT_LIBEDIT)
     if (INTERACTIVE(f))
       {
       size_t len;
       char *s = readline(prompt);
       if (s == NULL) return (here == start)? NULL : start;
       len = strlen(s);
       if (len > 0) add_history(s);
       if (len > rlen - 1) len = rlen - 1;
       memcpy(here, s, len);
       here[len] = '\n';
       here[len+1] = 0;
       free(s);
       }
     else
 #endif

     /* Read the next line by normal means, prompting if the file is a tty. */

       {
       if (INTERACTIVE(f)) printf("%s", prompt);
       if (fgets((char *)here, rlen,  f) == NULL)
         return (here == start)? NULL : start;
       }

     dlen = strlen((char *)here);
     here += dlen;

     /* Check for end of line reached. Take care not to read data from before
     start (dlen will be zero for a file starting with a binary zero). */

     if (here > start && here[-1] == '\n') return start;

     /* If we have not read a newline when reading a file, we have either filled
     the buffer or reached the end of the file. We can detect the former by
     checking that the string fills the buffer, and the latter by feof(). If
     neither of these is true, it means we read a binary zero which has caused
     strlen() to give a short length. This is a hard error because pcre2test
     expects to work with C strings. */

     if (!INTERACTIVE(f) && dlen < rlen - 1 && !feof(f))
       {
       fprintf(outfile, "** Binary zero encountered in input\n");
       fprintf(outfile, "** pcre2test run abandoned\n");
       exit(1);
       }
     }

   else
     {
     size_t start_offset = start - buffer;
     size_t here_offset = here - buffer;
     expand_input_buffers();
     start = buffer + start_offset;
     here = buffer + here_offset;
     }
   }

 /* Control never gets here */
 }


 /*************************************************
 *         Case-independent strncmp() function    *
 *************************************************/

 /*
 Arguments:
   s         first string
   t         second string
   n         number of characters to compare

 Returns:    < 0, = 0, or > 0, according to the comparison
 */

 static int
 strncmpic(const uint8_t *s, const uint8_t *t, int n)
 {
 while (n--)
   {
   int c = tolower(*s++) - tolower(*t++);
   if (c != 0) return c;
   }
 return 0;
 }


 /*************************************************
 *          Scan the main modifier list           *
 *************************************************/

 /* This function searches the modifier list for a long modifier name.

 Argument:
   p         start of the name
   lenp      length of the name

 Returns:    an index in the modifier list, or -1 on failure
 */

 static int
 scan_modifiers(const uint8_t *p, unsigned int len)
 {
 int bot = 0;
 int top = MODLISTCOUNT;

 while (top > bot)
   {
   int mid = (bot + top)/2;
   unsigned int mlen = strlen(modlist[mid].name);
   int c = strncmp((char *)p, modlist[mid].name, (len < mlen)? len : mlen);
   if (c == 0)
     {
     if (len == mlen) return mid;
     c = (int)len - (int)mlen;
     }
   if (c > 0) bot = mid + 1; else top = mid;
   }

 return -1;

 }


 /*************************************************
 *        Check a modifer and find its field      *
 *************************************************/

 /* This function is called when a modifier has been identified. We check that
 it is allowed here and find the field that is to be changed.

 Arguments:
   m          the modifier list entry
   ctx        CTX_PAT     => pattern context
              CTX_POPPAT  => pattern context for popped pattern
              CTX_DEFPAT  => default pattern context
              CTX_DAT     => data context
              CTX_DEFDAT  => default data context
   pctl       point to pattern control block
   dctl       point to data control block
   c          a single character or 0

 Returns:     a field pointer or NULL
 */

 static void *
 check_modifier(modstruct *m, int ctx, patctl *pctl, datctl *dctl, uint32_t c)
 {
 void *field = NULL;
 PCRE2_SIZE offset = m->offset;

 if (restrict_for_perl_test) switch(m->which)
   {
   case MOD_PNDP:
   case MOD_PATP:
   case MOD_DATP:
   case MOD_PDP:
   break;

   default:
   fprintf(outfile, "** '%s' is not allowed in a Perl-compatible test\n",
     m->name);
   return NULL;
   }

 switch (m->which)
   {
   case MOD_CTC:  /* Compile context modifier */
   if (ctx == CTX_DEFPAT) field = PTR(default_pat_context);
     else if (ctx == CTX_PAT) field = PTR(pat_context);
   break;

   case MOD_CTM:  /* Match context modifier */
   if (ctx == CTX_DEFDAT) field = PTR(default_dat_context);
     else if (ctx == CTX_DAT) field = PTR(dat_context);
   break;

   case MOD_DAT:    /* Data line modifier */
   case MOD_DATP:   /* Allowed for Perl test */
   if (dctl != NULL) field = dctl;
   break;

   case MOD_PAT:    /* Pattern modifier */
   case MOD_PATP:   /* Allowed for Perl test */
   if (pctl != NULL) field = pctl;
   break;

   case MOD_PD:   /* Pattern or data line modifier */
   case MOD_PDP:  /* Ditto, allowed for Perl test */
   case MOD_PND:  /* Ditto, but not default pattern */
   case MOD_PNDP: /* Ditto, allowed for Perl test */
   if (dctl != NULL) field = dctl;
     else if (pctl != NULL && (m->which == MOD_PD || m->which == MOD_PDP ||
              ctx != CTX_DEFPAT))
       field = pctl;
   break;
   }

 if (field == NULL)
   {
   if (c == 0)
     fprintf(outfile, "** '%s' is not valid here\n", m->name);
   else
     fprintf(outfile, "** /%c is not valid here\n", c);
   return NULL;
   }

 return (char *)field + offset;
 }


 /*************************************************
 *            Decode a modifier list              *
 *************************************************/

 /* A pointer to a control block is NULL when called in cases when that block is
 not relevant. They are never all relevant in one call. At least one of patctl
 and datctl is NULL. The second argument specifies which context to use for
 modifiers that apply to contexts.

 Arguments:
   p          point to modifier string
   ctx        CTX_PAT     => pattern context
              CTX_POPPAT  => pattern context for popped pattern
              CTX_DEFPAT  => default pattern context
              CTX_DAT     => data context
              CTX_DEFDAT  => default data context
   pctl       point to pattern control block
   dctl       point to data control block

 Returns: TRUE if successful decode, FALSE otherwise
 */

 static BOOL
 decode_modifiers(uint8_t *p, int ctx, patctl *pctl, datctl *dctl)
 {
 uint8_t *ep, *pp;
 long li;
 unsigned long uli;
 BOOL first = TRUE;

 for (;;)
   {
   void *field;
   modstruct *m;
   BOOL off = FALSE;
   unsigned int i, len;
   int index;
   char *endptr;

   /* Skip white space and commas. */

   while (isspace(*p) || *p == ',') p++;
   if (*p == 0) break;

   /* Find the end of the item; lose trailing whitespace at end of line. */

   for (ep = p; *ep != 0 && *ep != ','; ep++);
   if (*ep == 0)
     {
     while (ep > p && isspace(ep[-1])) ep--;
     *ep = 0;
     }

   /* Remember if the first character is '-'. */

   if (*p == '-')
     {
     off = TRUE;
     p++;
     }

   /* Find the length of a full-length modifier name, and scan for it. */

   pp = p;
   while (pp < ep && *pp != '=') pp++;
   index = scan_modifiers(p, pp - p);

   /* If the first modifier is unrecognized, try to interpret it as a sequence
   of single-character abbreviated modifiers. None of these modifiers have any
   associated data. They just set options or control bits. */

   if (index < 0)
     {
     uint32_t cc;
     uint8_t *mp = p;

     if (!first)
       {
       fprintf(outfile, "** Unrecognized modifier '%.*s'\n", (int)(ep-p), p);
       if (ep - p == 1)
         fprintf(outfile, "** Single-character modifiers must come first\n");
       return FALSE;
       }

     for (cc = *p; cc != ',' && cc != '\n' && cc != 0; cc = *(++p))
       {
       for (i = 0; i < C1MODLISTCOUNT; i++)
         if (cc == c1modlist[i].onechar) break;

       if (i >= C1MODLISTCOUNT)
         {
         fprintf(outfile, "** Unrecognized modifier '%c' in '%.*s'\n",
           *p, (int)(ep-mp), mp);
         return FALSE;
         }

       if (c1modlist[i].index >= 0)
         {
         index = c1modlist[i].index;
         }

       else
         {
         index = scan_modifiers((uint8_t *)(c1modlist[i].fullname),
           strlen(c1modlist[i].fullname));
         if (index < 0)
           {
           fprintf(outfile, "** Internal error: single-character equivalent "
             "modifier '%s' not found\n", c1modlist[i].fullname);
           return FALSE;
           }
         c1modlist[i].index = index;     /* Cache for next time */
         }

       field = check_modifier(modlist + index, ctx, pctl, dctl, *p);
       if (field == NULL) return FALSE;

       /* /x is a special case; a second appearance changes PCRE2_EXTENDED to
       PCRE2_EXTENDED_MORE. */

       if (cc == 'x' && (*((uint32_t *)field) & PCRE2_EXTENDED) != 0)
         {
         *((uint32_t *)field) &= ~PCRE2_EXTENDED;
         *((uint32_t *)field) |= PCRE2_EXTENDED_MORE;
         }
       else
         *((uint32_t *)field) |= modlist[index].value;
       }

     continue;    /* With tne next (fullname) modifier */
     }

   /* We have a match on a full-name modifier. Check for the existence of data
   when needed. */

   m = modlist + index;      /* Save typing */
   if (m->type != MOD_CTL && m->type != MOD_OPT &&
       (m->type != MOD_IND || *pp == '='))
     {
     if (*pp++ != '=')
       {
       fprintf(outfile, "** '=' expected after '%s'\n", m->name);
       return FALSE;
       }
     if (off)
       {
       fprintf(outfile, "** '-' is not valid for '%s'\n", m->name);
       return FALSE;
       }
     }

   /* These on/off types have no data. */

   else if (*pp != ',' && *pp != '\n' && *pp != ' ' && *pp != 0)
     {
     fprintf(outfile, "** Unrecognized modifier '%.*s'\n", (int)(ep-p), p);
     return FALSE;
     }

   /* Set the data length for those types that have data. Then find the field
   that is to be set. If check_modifier() returns NULL, it has already output an
   error message. */

   len = ep - pp;
   field = check_modifier(m, ctx, pctl, dctl, 0);
   if (field == NULL) return FALSE;

   /* Process according to data type. */

   switch (m->type)
     {
     case MOD_CTL:
     case MOD_OPT:
     if (off) *((uint32_t *)field) &= ~m->value;
       else *((uint32_t *)field) |= m->value;
     break;

     case MOD_BSR:
     if (len == 7 && strncmpic(pp, (const uint8_t *)"default", 7) == 0)
       {
 #ifdef BSR_ANYCRLF
       *((uint16_t *)field) = PCRE2_BSR_ANYCRLF;
 #else
       *((uint16_t *)field) = PCRE2_BSR_UNICODE;
 #endif
       if (ctx == CTX_PAT || ctx == CTX_DEFPAT) pctl->control2 &= ~CTL2_BSR_SET;
         else dctl->control2 &= ~CTL2_BSR_SET;
       }
     else
       {
       if (len == 7 && strncmpic(pp, (const uint8_t *)"anycrlf", 7) == 0)
         *((uint16_t *)field) = PCRE2_BSR_ANYCRLF;
       else if (len == 7 && strncmpic(pp, (const uint8_t *)"unicode", 7) == 0)
         *((uint16_t *)field) = PCRE2_BSR_UNICODE;
       else goto INVALID_VALUE;
       if (ctx == CTX_PAT || ctx == CTX_DEFPAT) pctl->control2 |= CTL2_BSR_SET;
         else dctl->control2 |= CTL2_BSR_SET;
       }
     pp = ep;
     break;

     case MOD_CHR:  /* A single character */
     *((uint32_t *)field) = *pp++;
     break;

     case MOD_CON:  /* A convert type/options list */
     for (;; pp++)
       {
       uint8_t *colon = (uint8_t *)strchr((const char *)pp, ':');
       len = ((colon != NULL && colon < ep)? colon:ep) - pp;
       for (i = 0; i < convertlistcount; i++)
         {
         if (strncmpic(pp, (const uint8_t *)convertlist[i].name, len) == 0)
           {
           if (*((uint32_t *)field) == CONVERT_UNSET)
             *((uint32_t *)field) = convertlist[i].option;
           else
             *((uint32_t *)field) |= convertlist[i].option;
           break;
           }
         }
       if (i >= convertlistcount) goto INVALID_VALUE;
       pp += len;
       if (*pp != ':') break;
       }
     break;

     case MOD_IN2:    /* One or two unsigned integers */
     if (!isdigit(*pp)) goto INVALID_VALUE;
     uli = strtoul((const char *)pp, &endptr, 10);
     if (U32OVERFLOW(uli)) goto INVALID_VALUE;
     ((uint32_t *)field)[0] = (uint32_t)uli;
     if (*endptr == ':')
       {
       uli = strtoul((const char *)endptr+1, &endptr, 10);
       if (U32OVERFLOW(uli)) goto INVALID_VALUE;
       ((uint32_t *)field)[1] = (uint32_t)uli;
       }
     else ((uint32_t *)field)[1] = 0;
     pp = (uint8_t *)endptr;
     break;

     /* PCRE2_SIZE_MAX is usually SIZE_MAX, which may be greater, equal to, or
     less than ULONG_MAX. So first test for overflowing the long int, and then
     test for overflowing PCRE2_SIZE_MAX if it is smaller than ULONG_MAX. */

     case MOD_SIZ:    /* PCRE2_SIZE value */
     if (!isdigit(*pp)) goto INVALID_VALUE;
     uli = strtoul((const char *)pp, &endptr, 10);
     if (uli == ULONG_MAX) goto INVALID_VALUE;
 #if ULONG_MAX > PCRE2_SIZE_MAX
     if (uli > PCRE2_SIZE_MAX) goto INVALID_VALUE;
 #endif
     *((PCRE2_SIZE *)field) = (PCRE2_SIZE)uli;
     pp = (uint8_t *)endptr;
     break;

     case MOD_IND:    /* Unsigned integer with default */
     if (len == 0)
       {
       *((uint32_t *)field) = (uint32_t)(m->value);
       break;
       }
     /* Fall through */

     case MOD_INT:    /* Unsigned integer */
     if (!isdigit(*pp)) goto INVALID_VALUE;
     uli = strtoul((const char *)pp, &endptr, 10);
     if (U32OVERFLOW(uli)) goto INVALID_VALUE;
     *((uint32_t *)field) = (uint32_t)uli;
     pp = (uint8_t *)endptr;
     break;

     case MOD_INS:   /* Signed integer */
     if (!isdigit(*pp) && *pp != '-') goto INVALID_VALUE;
     li = strtol((const char *)pp, &endptr, 10);
     if (S32OVERFLOW(li)) goto INVALID_VALUE;
     *((int32_t *)field) = (int32_t)li;
     pp = (uint8_t *)endptr;
     break;

     case MOD_NL:
     for (i = 0; i < sizeof(newlines)/sizeof(char *); i++)
       if (len == strlen(newlines[i]) &&
         strncmpic(pp, (const uint8_t *)newlines[i], len) == 0) break;
     if (i >= sizeof(newlines)/sizeof(char *)) goto INVALID_VALUE;
     if (i == 0)
       {
       *((uint16_t *)field) = NEWLINE_DEFAULT;
       if (ctx == CTX_PAT || ctx == CTX_DEFPAT) pctl->control2 &= ~CTL2_NL_SET;
         else dctl->control2 &= ~CTL2_NL_SET;
       }
     else
       {
       *((uint16_t *)field) = i;
       if (ctx == CTX_PAT || ctx == CTX_DEFPAT) pctl->control2 |= CTL2_NL_SET;
         else dctl->control2 |= CTL2_NL_SET;
       }
     pp = ep;
     break;

     case MOD_NN:              /* Name or (signed) number; may be several */
     if (isdigit(*pp) || *pp == '-')
       {
       int ct = MAXCPYGET - 1;
       int32_t value;
       li = strtol((const char *)pp, &endptr, 10);
       if (S32OVERFLOW(li)) goto INVALID_VALUE;
       value = (int32_t)li;
       field = (char *)field - m->offset + m->value;      /* Adjust field ptr */
       if (value >= 0)                                    /* Add new number */
         {
         while (*((int32_t *)field) >= 0 && ct-- > 0)   /* Skip previous */
           field = (char *)field + sizeof(int32_t);
         if (ct <= 0)
           {
           fprintf(outfile, "** Too many numeric '%s' modifiers\n", m->name);
           return FALSE;
           }
         }
       *((int32_t *)field) = value;
       if (ct > 0) ((int32_t *)field)[1] = -1;
       pp = (uint8_t *)endptr;
       }

     /* Multiple strings are put end to end. */

     else
       {
       char *nn = (char *)field;
       if (len > 0)                    /* Add new name */
         {
         if (len > MAX_NAME_SIZE)
           {
           fprintf(outfile, "** Group name in '%s' is too long\n", m->name);
           return FALSE;
           }
         while (*nn != 0) nn += strlen(nn) + 1;
         if (nn + len + 2 - (char *)field > LENCPYGET)
           {
           fprintf(outfile, "** Too many characters in named '%s' modifiers\n",
             m->name);
           return FALSE;
           }
         memcpy(nn, pp, len);
         }
       nn[len] = 0 ;
       nn[len+1] = 0;
       pp = ep;
       }
     break;

     case MOD_STR:
     if (len + 1 > m->value)
       {
       fprintf(outfile, "** Overlong value for '%s' (max %d code units)\n",
         m->name, m->value - 1);
       return FALSE;
       }
     memcpy(field, pp, len);
     ((uint8_t *)field)[len] = 0;
     pp = ep;
     break;
     }

   if (*pp != ',' && *pp != '\n' && *pp != ' ' && *pp != 0)
     {
     fprintf(outfile, "** Comma expected after modifier item '%s'\n", m->name);
     return FALSE;
     }

   p = pp;
   first = FALSE;

   if (ctx == CTX_POPPAT &&
      (pctl->options != 0 ||
       pctl->tables_id != 0 ||
       pctl->locale[0] != 0 ||
       (pctl->control & NOTPOP_CONTROLS) != 0))
     {
     fprintf(outfile, "** '%s' is not valid here\n", m->name);
     return FALSE;
     }
   }

 return TRUE;

 INVALID_VALUE:
 fprintf(outfile, "** Invalid value in '%.*s'\n", (int)(ep-p), p);
 return FALSE;
 }


 /*************************************************
 *             Get info from a pattern            *
 *************************************************/

 /* A wrapped call to pcre2_pattern_info(), applied to the current compiled
 pattern.

 Arguments:
   what        code for the required information
   where       where to put the answer
   unsetok     PCRE2_ERROR_UNSET is an "expected" result

 Returns:      the return from pcre2_pattern_info()
 */

 static int
 pattern_info(int what, void *where, BOOL unsetok)
 {
 int rc;
 PCRE2_PATTERN_INFO(rc, compiled_code, what, NULL);  /* Exercise the code */
 PCRE2_PATTERN_INFO(rc, compiled_code, what, where);
 if (rc >= 0) return 0;
 if (rc != PCRE2_ERROR_UNSET || !unsetok)
   {
   fprintf(outfile, "Error %d from pcre2_pattern_info_%d(%d)\n", rc, test_mode,
     what);
   if (rc == PCRE2_ERROR_BADMODE)
     fprintf(outfile, "Running in %d-bit mode but pattern was compiled in "
       "%d-bit mode\n", test_mode,
       8 * (FLD(compiled_code, flags) & PCRE2_MODE_MASK));
   }
 return rc;
 }


 #ifdef SUPPORT_PCRE2_8
 /*************************************************
 *             Show something in a list           *
 *************************************************/

 /* This function just helps to keep the code that uses it tidier. It's used for
 various lists of things where there needs to be introductory text before the
 first item. As these calls are all in the POSIX-support code, they happen only
 when 8-bit mode is supported. */

 static void
 prmsg(const char **msg, const char *s)
 {
 fprintf(outfile, "%s %s", *msg, s);
 *msg = "";
 }
 #endif  /* SUPPORT_PCRE2_8 */


 /*************************************************
 *                Show control bits               *
 *************************************************/

 /* Called for mutually exclusive controls and for unsupported POSIX controls.
 Because the bits are unique, this can be used for both pattern and data control
 words.

 Arguments:
   controls    control bits
   controls2   more control bits
   before      text to print before

 Returns:      nothing
 */

 static void
 show_controls(uint32_t controls, uint32_t controls2, const char *before)
 {
 fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
   before,
   ((controls & CTL_AFTERTEXT) != 0)? " aftertext" : "",
   ((controls & CTL_ALLAFTERTEXT) != 0)? " allaftertext" : "",
   ((controls & CTL_ALLCAPTURES) != 0)? " allcaptures" : "",
   ((controls & CTL_ALLUSEDTEXT) != 0)? " allusedtext" : "",
   ((controls2 & CTL2_ALLVECTOR) != 0)? " allvector" : "",
   ((controls & CTL_ALTGLOBAL) != 0)? " altglobal" : "",
   ((controls & CTL_BINCODE) != 0)? " bincode" : "",
   ((controls2 & CTL2_BSR_SET) != 0)? " bsr" : "",
   ((controls & CTL_CALLOUT_CAPTURE) != 0)? " callout_capture" : "",
   ((controls2 & CTL2_CALLOUT_EXTRA) != 0)? " callout_extra" : "",
   ((controls & CTL_CALLOUT_INFO) != 0)? " callout_info" : "",
   ((controls & CTL_CALLOUT_NONE) != 0)? " callout_none" : "",
   ((controls2 & CTL2_CALLOUT_NO_WHERE) != 0)? " callout_no_where" : "",
   ((controls & CTL_DFA) != 0)? " dfa" : "",
   ((controls & CTL_EXPAND) != 0)? " expand" : "",
   ((controls & CTL_FINDLIMITS) != 0)? " find_limits" : "",
   ((controls & CTL_FINDLIMITS_NOHEAP) != 0)? " find_limits_noheap" : "",
   ((controls2 & CTL2_FRAMESIZE) != 0)? " framesize" : "",
   ((controls & CTL_FULLBINCODE) != 0)? " fullbincode" : "",
   ((controls & CTL_GETALL) != 0)? " getall" : "",
   ((controls & CTL_GLOBAL) != 0)? " global" : "",
   ((controls & CTL_HEXPAT) != 0)? " hex" : "",
   ((controls & CTL_INFO) != 0)? " info" : "",
   ((controls & CTL_JITFAST) != 0)? " jitfast" : "",
   ((controls & CTL_JITVERIFY) != 0)? " jitverify" : "",
   ((controls & CTL_MARK) != 0)? " mark" : "",
   ((controls & CTL_MEMORY) != 0)? " memory" : "",
   ((controls2 & CTL2_NL_SET) != 0)? " newline" : "",
   ((controls & CTL_NULLCONTEXT) != 0)? " null_context" : "",
   ((controls2 & CTL2_NULL_REPLACEMENT) != 0)? " null_replacement" : "",
   ((controls2 & CTL2_NULL_SUBJECT) != 0)? " null_subject" : "",
   ((controls & CTL_POSIX) != 0)? " posix" : "",
   ((controls & CTL_POSIX_NOSUB) != 0)? " posix_nosub" : "",
   ((controls & CTL_PUSH) != 0)? " push" : "",
   ((controls & CTL_PUSHCOPY) != 0)? " pushcopy" : "",
   ((controls & CTL_PUSHTABLESCOPY) != 0)? " pushtablescopy" : "",
   ((controls & CTL_STARTCHAR) != 0)? " startchar" : "",
   ((controls2 & CTL2_SUBSTITUTE_CALLOUT) != 0)? " substitute_callout" : "",
   ((controls2 & CTL2_SUBSTITUTE_EXTENDED) != 0)? " substitute_extended" : "",
   ((controls2 & CTL2_SUBSTITUTE_LITERAL) != 0)? " substitute_literal" : "",
   ((controls2 & CTL2_SUBSTITUTE_MATCHED) != 0)? " substitute_matched" : "",
   ((controls2 & CTL2_SUBSTITUTE_OVERFLOW_LENGTH) != 0)? " substitute_overflow_length" : "",
   ((controls2 & CTL2_SUBSTITUTE_REPLACEMENT_ONLY) != 0)? " substitute_replacement_only" : "",
   ((controls2 & CTL2_SUBSTITUTE_UNKNOWN_UNSET) != 0)? " substitute_unknown_unset" : "",
   ((controls2 & CTL2_SUBSTITUTE_UNSET_EMPTY) != 0)? " substitute_unset_empty" : "",
   ((controls & CTL_USE_LENGTH) != 0)? " use_length" : "",
   ((controls & CTL_UTF8_INPUT) != 0)? " utf8_input" : "",
   ((controls & CTL_ZERO_TERMINATE) != 0)? " zero_terminate" : "");
 }


 /*************************************************
 *                Show compile options            *
 *************************************************/

 /* Called from show_pattern_info() and for unsupported POSIX options.

 Arguments:
   options     an options word
   before      text to print before
   after       text to print after

 Returns:      nothing
 */

 static void
 show_compile_options(uint32_t options, const char *before, const char *after)
 {
 if (options == 0) fprintf(outfile, "%s <none>%s", before, after);
 else fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
   before,
   ((options & PCRE2_ALT_BSUX) != 0)? " alt_bsux" : "",
   ((options & PCRE2_ALT_CIRCUMFLEX) != 0)? " alt_circumflex" : "",
   ((options & PCRE2_ALT_VERBNAMES) != 0)? " alt_verbnames" : "",
   ((options & PCRE2_ALLOW_EMPTY_CLASS) != 0)? " allow_empty_class" : "",
   ((options & PCRE2_ANCHORED) != 0)? " anchored" : "",
   ((options & PCRE2_AUTO_CALLOUT) != 0)? " auto_callout" : "",
   ((options & PCRE2_CASELESS) != 0)? " caseless" : "",
   ((options & PCRE2_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
   ((options & PCRE2_DOTALL) != 0)? " dotall" : "",
   ((options & PCRE2_DUPNAMES) != 0)? " dupnames" : "",
   ((options & PCRE2_ENDANCHORED) != 0)? " endanchored" : "",
   ((options & PCRE2_EXTENDED) != 0)? " extended" : "",
   ((options & PCRE2_EXTENDED_MORE) != 0)? " extended_more" : "",
   ((options & PCRE2_FIRSTLINE) != 0)? " firstline" : "",
   ((options & PCRE2_LITERAL) != 0)? " literal" : "",
   ((options & PCRE2_MATCH_INVALID_UTF) != 0)? " match_invalid_utf" : "",
   ((options & PCRE2_MATCH_UNSET_BACKREF) != 0)? " match_unset_backref" : "",
   ((options & PCRE2_MULTILINE) != 0)? " multiline" : "",
   ((options & PCRE2_NEVER_BACKSLASH_C) != 0)? " never_backslash_c" : "",
   ((options & PCRE2_NEVER_UCP) != 0)? " never_ucp" : "",
   ((options & PCRE2_NEVER_UTF) != 0)? " never_utf" : "",
   ((options & PCRE2_NO_AUTO_CAPTURE) != 0)? " no_auto_capture" : "",
   ((options & PCRE2_NO_AUTO_POSSESS) != 0)? " no_auto_possess" : "",
   ((options & PCRE2_NO_DOTSTAR_ANCHOR) != 0)? " no_dotstar_anchor" : "",
   ((options & PCRE2_NO_UTF_CHECK) != 0)? " no_utf_check" : "",
   ((options & PCRE2_NO_START_OPTIMIZE) != 0)? " no_start_optimize" : "",
   ((options & PCRE2_UCP) != 0)? " ucp" : "",
   ((options & PCRE2_UNGREEDY) != 0)? " ungreedy" : "",
   ((options & PCRE2_USE_OFFSET_LIMIT) != 0)? " use_offset_limit" : "",
   ((options & PCRE2_UTF) != 0)? " utf" : "",
   after);
 }


 /*************************************************
 *           Show compile extra options           *
 *************************************************/

 /* Called from show_pattern_info() and for unsupported POSIX options.

 Arguments:
   options     an options word
   before      text to print before
   after       text to print after

 Returns:      nothing
 */

 static void
 show_compile_extra_options(uint32_t options, const char *before,
   const char *after)
 {
 if (options == 0) fprintf(outfile, "%s <none>%s", before, after);
 else fprintf(outfile, "%s%s%s%s%s%s%s%s",
   before,
   ((options & PCRE2_EXTRA_ALLOW_SURROGATE_ESCAPES) != 0)? " allow_surrogate_escapes" : "",
   ((options & PCRE2_EXTRA_BAD_ESCAPE_IS_LITERAL) != 0)? " bad_escape_is_literal" : "",
   ((options & PCRE2_EXTRA_ALT_BSUX) != 0)? " extra_alt_bsux" : "",
   ((options & PCRE2_EXTRA_MATCH_WORD) != 0)? " match_word" : "",
   ((options & PCRE2_EXTRA_MATCH_LINE) != 0)? " match_line" : "",
   ((options & PCRE2_EXTRA_ESCAPED_CR_IS_LF) != 0)? " escaped_cr_is_lf" : "",
   after);
 }


 #ifdef SUPPORT_PCRE2_8
 /*************************************************
 *                Show match options              *
 *************************************************/

 /* Called for unsupported POSIX options. */

 static void
 show_match_options(uint32_t options)
 {
 fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s",
   ((options & PCRE2_ANCHORED) != 0)? " anchored" : "",
   ((options & PCRE2_COPY_MATCHED_SUBJECT) != 0)? " copy_matched_subject" : "",
   ((options & PCRE2_DFA_RESTART) != 0)? " dfa_restart" : "",
   ((options & PCRE2_DFA_SHORTEST) != 0)? " dfa_shortest" : "",
   ((options & PCRE2_ENDANCHORED) != 0)? " endanchored" : "",
   ((options & PCRE2_NO_JIT) != 0)? " no_jit" : "",
   ((options & PCRE2_NO_UTF_CHECK) != 0)? " no_utf_check" : "",
   ((options & PCRE2_NOTBOL) != 0)? " notbol" : "",
   ((options & PCRE2_NOTEMPTY) != 0)? " notempty" : "",
   ((options & PCRE2_NOTEMPTY_ATSTART) != 0)? " notempty_atstart" : "",
   ((options & PCRE2_NOTEOL) != 0)? " noteol" : "",
   ((options & PCRE2_PARTIAL_HARD) != 0)? " partial_hard" : "",
   ((options & PCRE2_PARTIAL_SOFT) != 0)? " partial_soft" : "");
 }
 #endif  /* SUPPORT_PCRE2_8 */


 /*************************************************
 *      Show memory usage info for a pattern      *
 *************************************************/

 static void
 show_memory_info(void)
 {
 uint32_t name_count, name_entry_size;
 size_t size, cblock_size;

 /* One of the test_mode values will always be true, but to stop a compiler
 warning we must initialize cblock_size. */

 cblock_size = 0;
 #ifdef SUPPORT_PCRE2_8
 if (test_mode == PCRE8_MODE) cblock_size = sizeof(pcre2_real_code_8);
 #endif
 #ifdef SUPPORT_PCRE2_16
 if (test_mode == PCRE16_MODE) cblock_size = sizeof(pcre2_real_code_16);
 #endif
 #ifdef SUPPORT_PCRE2_32
 if (test_mode == PCRE32_MODE) cblock_size = sizeof(pcre2_real_code_32);
 #endif

 (void)pattern_info(PCRE2_INFO_SIZE, &size, FALSE);
 (void)pattern_info(PCRE2_INFO_NAMECOUNT, &name_count, FALSE);
 (void)pattern_info(PCRE2_INFO_NAMEENTRYSIZE, &name_entry_size, FALSE);

 /* The uint32_t variables are cast before multiplying to stop code analyzers
 grumbling about potential overflow. */

 fprintf(outfile, "Memory allocation (code space): %" SIZ_FORM "\n", size -
   (size_t)name_count * (size_t)name_entry_size * (size_t)code_unit_size -
   cblock_size);

 if (pat_patctl.jit != 0)
   {
   (void)pattern_info(PCRE2_INFO_JITSIZE, &size, FALSE);
   fprintf(outfile, "Memory allocation (JIT code): %" SIZ_FORM "\n", size);
   }
 }


 /*************************************************
 *       Show frame size info for a pattern       *
 *************************************************/

 static void
 show_framesize(void)
 {
 size_t frame_size;
 (void)pattern_info(PCRE2_INFO_FRAMESIZE, &frame_size, FALSE);
 fprintf(outfile, "Frame size for pcre2_match(): %" SIZ_FORM "\n", frame_size);
 }


 /*************************************************
 *         Get and output an error message        *
 *************************************************/

 static BOOL
 print_error_message(int errorcode, const char *before, const char *after)
 {
 int len;
 PCRE2_GET_ERROR_MESSAGE(len, errorcode, pbuffer);
 if (len < 0)
   {
   fprintf(outfile, "\n** pcre2test internal error: cannot interpret error "
     "number\n** Unexpected return (%d) from pcre2_get_error_message()\n", len);
   }
 else
   {
   fprintf(outfile, "%s", before);
   PCHARSV(CASTVAR(void *, pbuffer), 0, len, FALSE, outfile);
   fprintf(outfile, "%s", after);
   }
 return len >= 0;
 }


 /*************************************************
 *     Callback function for callout enumeration  *
 *************************************************/

 /* The only differences in the callout emumeration block for different code
 unit widths are that the pointers to the subject, the most recent MARK, and a
 callout argument string point to strings of the appropriate width. Casts can be
 used to deal with this.

 Argument:
   cb            pointer to enumerate block
   callout_data  user data

 Returns:    0
 */

 static int callout_callback(pcre2_callout_enumerate_block_8 *cb,
   void *callout_data)
 {
 uint32_t i;
 BOOL utf = (FLD(compiled_code, overall_options) & PCRE2_UTF) != 0;

 (void)callout_data;  /* Not currently displayed */

 fprintf(outfile, "Callout ");
 if (cb->callout_string != NULL)
   {
   uint32_t delimiter = CODE_UNIT(cb->callout_string, -1);
   fprintf(outfile, "%c", delimiter);
   PCHARSV(cb->callout_string, 0,
     cb->callout_string_length, utf, outfile);
   for (i = 0; callout_start_delims[i] != 0; i++)
     if (delimiter == callout_start_delims[i])
       {
       delimiter = callout_end_delims[i];
       break;
       }
   fprintf(outfile, "%c  ", delimiter);
   }
 else fprintf(outfile, "%d  ", cb->callout_number);

 fprintf(outfile, "%.*s\n",
   (int)((cb->next_item_length == 0)? 1 : cb->next_item_length),
   pbuffer8 + cb->pattern_position);

 return 0;
 }


 /*************************************************
 *        Show information about a pattern        *
 *************************************************/

 /* This function is called after a pattern has been compiled if any of the
 information-requesting controls have been set.

 Arguments:  none

 Returns:    PR_OK     continue processing next line
             PR_SKIP   skip to a blank line
             PR_ABEND  abort the pcre2test run
 */

 static int
 show_pattern_info(void)
 {
 uint32_t compile_options, overall_options, extra_options;
 BOOL utf = (FLD(compiled_code, overall_options) & PCRE2_UTF) != 0;

 if ((pat_patctl.control & (CTL_BINCODE|CTL_FULLBINCODE)) != 0)
   {
   fprintf(outfile, "------------------------------------------------------------------\n");
   PCRE2_PRINTINT((pat_patctl.control & CTL_FULLBINCODE) != 0);
   }

 if ((pat_patctl.control & CTL_INFO) != 0)
   {
   int rc;
   void *nametable;
   uint8_t *start_bits;
   BOOL heap_limit_set, match_limit_set, depth_limit_set;
   uint32_t backrefmax, bsr_convention, capture_count, first_ctype, first_cunit,
     hasbackslashc, hascrorlf, jchanged, last_ctype, last_cunit, match_empty,
     depth_limit, heap_limit, match_limit, minlength, nameentrysize, namecount,
     newline_convention;

   /* Exercise the error route. */

   PCRE2_PATTERN_INFO(rc, compiled_code, 999, NULL);
   (void)rc;

   /* These info requests may return PCRE2_ERROR_UNSET. */

   switch(pattern_info(PCRE2_INFO_HEAPLIMIT, &heap_limit, TRUE))
     {
     case 0:
     heap_limit_set = TRUE;
     break;

     case PCRE2_ERROR_UNSET:
     heap_limit_set = FALSE;
     break;

     default:
     return PR_ABEND;
     }

   switch(pattern_info(PCRE2_INFO_MATCHLIMIT, &match_limit, TRUE))
     {
     case 0:
     match_limit_set = TRUE;
     break;

     case PCRE2_ERROR_UNSET:
     match_limit_set = FALSE;
     break;

     default:
     return PR_ABEND;
     }

   switch(pattern_info(PCRE2_INFO_DEPTHLIMIT, &depth_limit, TRUE))
     {
     case 0:
     depth_limit_set = TRUE;
     break;

     case PCRE2_ERROR_UNSET:
     depth_limit_set = FALSE;
     break;

     default:
     return PR_ABEND;
     }

   /* These info requests should always succeed. */

   if (pattern_info(PCRE2_INFO_BACKREFMAX, &backrefmax, FALSE) +
       pattern_info(PCRE2_INFO_BSR, &bsr_convention, FALSE) +
       pattern_info(PCRE2_INFO_CAPTURECOUNT, &capture_count, FALSE) +
       pattern_info(PCRE2_INFO_FIRSTBITMAP, &start_bits, FALSE) +
       pattern_info(PCRE2_INFO_FIRSTCODEUNIT, &first_cunit, FALSE) +
       pattern_info(PCRE2_INFO_FIRSTCODETYPE, &first_ctype, FALSE) +
       pattern_info(PCRE2_INFO_HASBACKSLASHC, &hasbackslashc, FALSE) +
       pattern_info(PCRE2_INFO_HASCRORLF, &hascrorlf, FALSE) +
       pattern_info(PCRE2_INFO_JCHANGED, &jchanged, FALSE) +
       pattern_info(PCRE2_INFO_LASTCODEUNIT, &last_cunit, FALSE) +
       pattern_info(PCRE2_INFO_LASTCODETYPE, &last_ctype, FALSE) +
       pattern_info(PCRE2_INFO_MATCHEMPTY, &match_empty, FALSE) +
       pattern_info(PCRE2_INFO_MINLENGTH, &minlength, FALSE) +
       pattern_info(PCRE2_INFO_NAMECOUNT, &namecount, FALSE) +
       pattern_info(PCRE2_INFO_NAMEENTRYSIZE, &nameentrysize, FALSE) +
       pattern_info(PCRE2_INFO_NAMETABLE, &nametable, FALSE) +
       pattern_info(PCRE2_INFO_NEWLINE, &newline_convention, FALSE)
       != 0)
     return PR_ABEND;

   fprintf(outfile, "Capture group count = %d\n", capture_count);

   if (backrefmax > 0)
     fprintf(outfile, "Max back reference = %d\n", backrefmax);

   if (maxlookbehind > 0)
     fprintf(outfile, "Max lookbehind = %d\n", maxlookbehind);

   if (heap_limit_set)
     fprintf(outfile, "Heap limit = %u\n", heap_limit);

   if (match_limit_set)
     fprintf(outfile, "Match limit = %u\n", match_limit);

   if (depth_limit_set)
     fprintf(outfile, "Depth limit = %u\n", depth_limit);

   if (namecount > 0)
     {
     fprintf(outfile, "Named capture groups:\n");
     for (; namecount > 0; namecount--)
       {
       int imm2_size = test_mode == PCRE8_MODE ? 2 : 1;
       uint32_t length = (uint32_t)STRLEN(nametable + imm2_size);
       fprintf(outfile, "  ");

       /* In UTF mode the name may be a UTF string containing non-ASCII
       letters and digits. We must output it as a UTF-8 string. In non-UTF mode,
       use the normal string printing functions, which use escapes for all
       non-ASCII characters. */

       if (utf)
         {
 #ifdef SUPPORT_PCRE2_32
         if (test_mode == PCRE32_MODE)
           {
           PCRE2_SPTR32 nameptr = (PCRE2_SPTR32)nametable + imm2_size;
           while (*nameptr != 0)
             {
             uint8_t u8buff[6];
             int len = ord2utf8(*nameptr++, u8buff);
             fprintf(outfile, "%.*s", len, u8buff);
             }
           }
 #endif
 #ifdef SUPPORT_PCRE2_16
         if (test_mode == PCRE16_MODE)
           {
           PCRE2_SPTR16 nameptr = (PCRE2_SPTR16)nametable + imm2_size;
           while (*nameptr != 0)
             {
             int len;
             uint8_t u8buff[6];
             uint32_t c = *nameptr++ & 0xffff;
             if (c >= 0xD800 && c < 0xDC00)
               c = ((c & 0x3ff) << 10) + (*nameptr++ & 0x3ff) + 0x10000;
             len = ord2utf8(c, u8buff);
             fprintf(outfile, "%.*s", len, u8buff);
             }
           }
 #endif
 #ifdef SUPPORT_PCRE2_8
         if (test_mode == PCRE8_MODE)
           fprintf(outfile, "%s", (PCRE2_SPTR8)nametable + imm2_size);
 #endif
         }
       else  /* Not UTF mode */
         {
         PCHARSV(nametable, imm2_size, length, FALSE, outfile);
         }

       while (length++ < nameentrysize - imm2_size) putc(' ', outfile);

 #ifdef SUPPORT_PCRE2_32
       if (test_mode == PCRE32_MODE)
         fprintf(outfile, "%3d\n", (int)(((PCRE2_SPTR32)nametable)[0]));
 #endif
 #ifdef SUPPORT_PCRE2_16
       if (test_mode == PCRE16_MODE)
         fprintf(outfile, "%3d\n", (int)(((PCRE2_SPTR16)nametable)[0]));
 #endif
 #ifdef SUPPORT_PCRE2_8
       if (test_mode == PCRE8_MODE)
         fprintf(outfile, "%3d\n", (int)(
         ((((PCRE2_SPTR8)nametable)[0]) << 8) | ((PCRE2_SPTR8)nametable)[1]));
 #endif

       nametable = (void*)((PCRE2_SPTR8)nametable + nameentrysize * code_unit_size);
       }
     }

   if (hascrorlf)     fprintf(outfile, "Contains explicit CR or LF match\n");
   if (hasbackslashc) fprintf(outfile, "Contains \\C\n");
   if (match_empty)   fprintf(outfile, "May match empty string\n");

   pattern_info(PCRE2_INFO_ARGOPTIONS, &compile_options, FALSE);
   pattern_info(PCRE2_INFO_ALLOPTIONS, &overall_options, FALSE);
   pattern_info(PCRE2_INFO_EXTRAOPTIONS, &extra_options, FALSE);

   /* Remove UTF/UCP if they were there only because of forbid_utf. This saves
   cluttering up the verification output of non-UTF test files. */

   if ((pat_patctl.options & PCRE2_NEVER_UTF) == 0)
     {
     compile_options &= ~PCRE2_NEVER_UTF;
     overall_options &= ~PCRE2_NEVER_UTF;
     }

   if ((pat_patctl.options & PCRE2_NEVER_UCP) == 0)
     {
     compile_options &= ~PCRE2_NEVER_UCP;
     overall_options &= ~PCRE2_NEVER_UCP;
     }

   if ((compile_options|overall_options) != 0)
     {
     if (compile_options == overall_options)
       show_compile_options(compile_options, "Options:", "\n");
     else
       {
       show_compile_options(compile_options, "Compile options:", "\n");
       show_compile_options(overall_options, "Overall options:", "\n");
       }
     }

   if (extra_options != 0)
     show_compile_extra_options(extra_options, "Extra options:", "\n");

   if (jchanged) fprintf(outfile, "Duplicate name status changes\n");

   if ((pat_patctl.control2 & CTL2_BSR_SET) != 0 ||
       (FLD(compiled_code, flags) & PCRE2_BSR_SET) != 0)
     fprintf(outfile, "\\R matches %s\n", (bsr_convention == PCRE2_BSR_UNICODE)?
       "any Unicode newline" : "CR, LF, or CRLF");

   if ((FLD(compiled_code, flags) & PCRE2_NL_SET) != 0)
     {
     switch (newline_convention)
       {
       case PCRE2_NEWLINE_CR:
       fprintf(outfile, "Forced newline is CR\n");
       break;

       case PCRE2_NEWLINE_LF:
       fprintf(outfile, "Forced newline is LF\n");
       break;

       case PCRE2_NEWLINE_CRLF:
       fprintf(outfile, "Forced newline is CRLF\n");
       break;

       case PCRE2_NEWLINE_ANYCRLF:
       fprintf(outfile, "Forced newline is CR, LF, or CRLF\n");
       break;

       case PCRE2_NEWLINE_ANY:
       fprintf(outfile, "Forced newline is any Unicode newline\n");
       break;

       case PCRE2_NEWLINE_NUL:
       fprintf(outfile, "Forced newline is NUL\n");
       break;

       default:
       break;
       }
     }

   if (first_ctype == 2)
     {
     fprintf(outfile, "First code unit at start or follows newline\n");
     }
   else if (first_ctype == 1)
     {
     const char *caseless =
       ((FLD(compiled_code, flags) & PCRE2_FIRSTCASELESS) == 0)?
       "" : " (caseless)";
     if (PRINTOK(first_cunit))
       fprintf(outfile, "First code unit = \'%c\'%s\n", first_cunit, caseless);
     else
       {
       fprintf(outfile, "First code unit = ");
       pchar(first_cunit, FALSE, outfile);
       fprintf(outfile, "%s\n", caseless);
       }
     }
   else if (start_bits != NULL)
     {
     int i;
     int c = 24;
     fprintf(outfile, "Starting code units: ");
     for (i = 0; i < 256; i++)
       {
       if ((start_bits[i/8] & (1u << (i&7))) != 0)
         {
         if (c > 75)
           {
           fprintf(outfile, "\n  ");
           c = 2;
           }
         if (PRINTOK(i) && i != ' ')
           {
           fprintf(outfile, "%c ", i);
           c += 2;
           }
         else
           {
           fprintf(outfile, "\\x%02x ", i);
           c += 5;
           }
         }
       }
     fprintf(outfile, "\n");
     }

   if (last_ctype != 0)
     {
     const char *caseless =
       ((FLD(compiled_code, flags) & PCRE2_LASTCASELESS) == 0)?
       "" : " (caseless)";
     if (PRINTOK(last_cunit))
       fprintf(outfile, "Last code unit = \'%c\'%s\n", last_cunit, caseless);
     else
       {
       fprintf(outfile, "Last code unit = ");
       pchar(last_cunit, FALSE, outfile);
       fprintf(outfile, "%s\n", caseless);
       }
     }

   if ((FLD(compiled_code, overall_options) & PCRE2_NO_START_OPTIMIZE) == 0)
     fprintf(outfile, "Subject length lower bound = %d\n", minlength);

   if (pat_patctl.jit != 0 && (pat_patctl.control & CTL_JITVERIFY) != 0)
     {
 #ifdef SUPPORT_JIT
     if (FLD(compiled_code, executable_jit) != NULL)
       fprintf(outfile, "JIT compilation was successful\n");
     else
       {
       fprintf(outfile, "JIT compilation was not successful");
       if (jitrc != 0 && !print_error_message(jitrc, " (", ")"))
         return PR_ABEND;
       fprintf(outfile, "\n");
       }
 #else
       fprintf(outfile, "JIT support is not available in this version of PCRE2\n");
 #endif
     }
   }

 if ((pat_patctl.control & CTL_CALLOUT_INFO) != 0)
   {
   int errorcode;
   PCRE2_CALLOUT_ENUMERATE(errorcode, callout_callback, 0);
   if (errorcode != 0)
     {
     fprintf(outfile, "Callout enumerate failed: error %d: ", errorcode);
     if (errorcode < 0 && !print_error_message(errorcode, "", "\n"))
       return PR_ABEND;
     return PR_SKIP;
     }
   }

 return PR_OK;
 }


 /*************************************************
 *              Handle serialization error        *
 *************************************************/

 /* Print an error message after a serialization failure.

 Arguments:
   rc         the error code
   msg        an initial message for what failed

 Returns:     FALSE if print_error_message() fails
 */

 static BOOL
 serial_error(int rc, const char *msg)
 {
 fprintf(outfile, "%s failed: error %d: ", msg, rc);
 return print_error_message(rc, "", "\n");
 }


 /*************************************************
 *        Open file for save/load commands        *
 *************************************************/

 /* This function decodes the file name and opens the file.

 Arguments:
   buffptr     point after the #command
   mode        open mode
   fptr        points to the FILE variable
   name        name of # command

 Returns:      PR_OK or PR_ABEND
 */

 static int
 open_file(uint8_t *buffptr, const char *mode, FILE **fptr, const char *name)
 {
 char *endf;
 char *filename = (char *)buffptr;
 while (isspace(*filename)) filename++;
 endf = filename + strlen8(filename);
 while (endf > filename && isspace(endf[-1])) endf--;

 if (endf == filename)
   {
   fprintf(outfile, "** File name expected after %s\n", name);
   return PR_ABEND;
   }

 *endf = 0;
 *fptr = fopen((const char *)filename, mode);
 if (*fptr == NULL)
   {
   fprintf(outfile, "** Failed to open '%s': %s\n", filename, strerror(errno));
   return PR_ABEND;
   }

 return PR_OK;
 }


 /*************************************************
 *               Process command line             *
 *************************************************/

 /* This function is called for lines beginning with # and a character that is
 not ! or whitespace, when encountered between tests, which means that there is
 no compiled pattern (compiled_code is NULL). The line is in buffer.

 Arguments:  none

 Returns:    PR_OK     continue processing next line
             PR_SKIP   skip to a blank line
             PR_ABEND  abort the pcre2test run
 */

 static int
 process_command(void)
 {
 FILE *f;
 PCRE2_SIZE serial_size;
 size_t i;
 int rc, cmd, cmdlen, yield;
 uint16_t first_listed_newline;
 const char *cmdname;
 uint8_t *argptr, *serial;

 yield = PR_OK;
 cmd = CMD_UNKNOWN;
 cmdlen = 0;

 for (i = 0; i < cmdlistcount; i++)
   {
   cmdname = cmdlist[i].name;
   cmdlen = strlen(cmdname);
   if (strncmp((char *)(buffer+1), cmdname, cmdlen) == 0 &&
       isspace(buffer[cmdlen+1]))
     {
     cmd = cmdlist[i].value;
     break;
     }
   }

 argptr = buffer + cmdlen + 1;

 if (restrict_for_perl_test && cmd != CMD_PATTERN && cmd != CMD_SUBJECT)
   {
   fprintf(outfile, "** #%s is not allowed after #perltest\n", cmdname);
   return PR_ABEND;
   }

 switch(cmd)
   {
   case CMD_UNKNOWN:
   fprintf(outfile, "** Unknown command: %s", buffer);
   break;

   case CMD_FORBID_UTF:
   forbid_utf = PCRE2_NEVER_UTF|PCRE2_NEVER_UCP;
   break;

   case CMD_PERLTEST:
   restrict_for_perl_test = TRUE;
   break;

   /* Set default pattern modifiers */

   case CMD_PATTERN:
   (void)decode_modifiers(argptr, CTX_DEFPAT, &def_patctl, NULL);
   if (def_patctl.jit == 0 && (def_patctl.control & CTL_JITVERIFY) != 0)
     def_patctl.jit = JIT_DEFAULT;
   break;

   /* Set default subject modifiers */

   case CMD_SUBJECT:
   (void)decode_modifiers(argptr, CTX_DEFDAT, NULL, &def_datctl);
   break;

   /* Check the default newline, and if not one of those listed, set up the
   first one to be forced. An empty list unsets. */

   case CMD_NEWLINE_DEFAULT:
   local_newline_default = 0;   /* Unset */
   first_listed_newline = 0;
   for (;;)
     {
     while (isspace(*argptr)) argptr++;
     if (*argptr == 0) break;
     for (i = 1; i < sizeof(newlines)/sizeof(char *); i++)
       {
       size_t nlen = strlen(newlines[i]);
       if (strncmpic(argptr, (const uint8_t *)newlines[i], nlen) == 0 &&
           isspace(argptr[nlen]))
         {
         if (i == NEWLINE_DEFAULT) return PR_OK;  /* Default is valid */
         if (first_listed_newline == 0) first_listed_newline = i;
         }
       }
     while (*argptr != 0 && !isspace(*argptr)) argptr++;
     }
   local_newline_default = first_listed_newline;
   break;

   /* Pop or copy a compiled pattern off the stack. Modifiers that do not affect
   the compiled pattern (e.g. to give information) are permitted. The default
   pattern modifiers are ignored. */

   case CMD_POP:
   case CMD_POPCOPY:
   if (patstacknext <= 0)
     {
     fprintf(outfile, "** Can't pop off an empty stack\n");
     return PR_SKIP;
     }
   memset(&pat_patctl, 0, sizeof(patctl));   /* Completely unset */
   if (!decode_modifiers(argptr, CTX_POPPAT, &pat_patctl, NULL))
     return PR_SKIP;

   if (cmd == CMD_POP)
     {
     SET(compiled_code, patstack[--patstacknext]);
     }
   else
     {
     PCRE2_CODE_COPY_FROM_VOID(compiled_code, patstack[patstacknext - 1]);
     }

   if (pat_patctl.jit != 0)
     {
     PCRE2_JIT_COMPILE(jitrc, compiled_code, pat_patctl.jit);
     }
   if ((pat_patctl.control & CTL_MEMORY) != 0) show_memory_info();
   if ((pat_patctl.control2 & CTL2_FRAMESIZE) != 0) show_framesize();
   if ((pat_patctl.control & CTL_ANYINFO) != 0)
     {
     rc = show_pattern_info();
     if (rc != PR_OK) return rc;
     }
   break;

   /* Save the stack of compiled patterns to a file, then empty the stack. */

   case CMD_SAVE:
   if (patstacknext <= 0)
     {
     fprintf(outfile, "** No stacked patterns to save\n");
     return PR_OK;
     }

   rc = open_file(argptr+1, BINARY_OUTPUT_MODE, &f, "#save");
   if (rc != PR_OK) return rc;

   PCRE2_SERIALIZE_ENCODE(rc, patstack, patstacknext, &serial, &serial_size,
     general_context);
   if (rc < 0)
     {
     fclose(f);
     if (!serial_error(rc, "Serialization")) return PR_ABEND;
     break;
     }

   /* Write the length at the start of the file to make it straightforward to
   get the right memory when re-loading. This saves having to read the file size
   in different operating systems. To allow for different endianness (even
   though reloading with the opposite endianness does not work), write the
   length byte-by-byte. */

   for (i = 0; i < 4; i++) fputc((serial_size >> (i*8)) & 255, f);
   if (fwrite(serial, 1, serial_size, f) != serial_size)
     {
     fprintf(outfile, "** Wrong return from fwrite()\n");
     fclose(f);
     return PR_ABEND;
     }

   fclose(f);
   PCRE2_SERIALIZE_FREE(serial);
   while(patstacknext > 0)
     {
     SET(compiled_code, patstack[--patstacknext]);
     SUB1(pcre2_code_free, compiled_code);
     }
   SET(compiled_code, NULL);
   break;

   /* Load a set of compiled patterns from a file onto the stack */

   case CMD_LOAD:
   rc = open_file(argptr+1, BINARY_INPUT_MODE, &f, "#load");
   if (rc != PR_OK) return rc;

   serial_size = 0;
   for (i = 0; i < 4; i++) serial_size |= fgetc(f) << (i*8);

   serial = malloc(serial_size);
   if (serial == NULL)
     {
     fprintf(outfile, "** Failed to get memory (size %" SIZ_FORM ") for #load\n",
       serial_size);
     fclose(f);
     return PR_ABEND;
     }

   i = fread(serial, 1, serial_size, f);
   fclose(f);

   if (i != serial_size)
     {
     fprintf(outfile, "** Wrong return from fread()\n");
     yield = PR_ABEND;
     }
   else
     {
     PCRE2_SERIALIZE_GET_NUMBER_OF_CODES(rc, serial);
     if (rc < 0)
       {
       if (!serial_error(rc, "Get number of codes")) yield = PR_ABEND;
       }
     else
       {
       if (rc + patstacknext > PATSTACKSIZE)
         {
         fprintf(outfile, "** Not enough space on pattern stack for %d pattern%s\n",
           rc, (rc == 1)? "" : "s");
         rc = PATSTACKSIZE - patstacknext;
         fprintf(outfile, "** Decoding %d pattern%s\n", rc,
           (rc == 1)? "" : "s");
         }
       PCRE2_SERIALIZE_DECODE(rc, patstack + patstacknext, rc, serial,
         general_context);
       if (rc < 0)
         {
         if (!serial_error(rc, "Deserialization")) yield = PR_ABEND;
         }
       else patstacknext += rc;
       }
     }

   free(serial);
   break;

   /* Load a set of binary tables into tables3. */

   case CMD_LOADTABLES:
   rc = open_file(argptr+1, BINARY_INPUT_MODE, &f, "#loadtables");
   if (rc != PR_OK) return rc;

   if (tables3 == NULL)
     {
     (void)PCRE2_CONFIG(PCRE2_CONFIG_TABLES_LENGTH, &loadtables_length);
     tables3 = malloc(loadtables_length);
     }

   if (tables3 == NULL)
     {
     fprintf(outfile, "** Failed: malloc failed for #loadtables\n");
     yield = PR_ABEND;
     }
   else if (fread(tables3, 1, loadtables_length, f) != loadtables_length)
     {
     fprintf(outfile, "** Wrong return from fread()\n");
     yield = PR_ABEND;
     }

   fclose(f);
   break;
   }

 return yield;
 }


 /*************************************************
 *               Process pattern line             *
 *************************************************/

 /* This function is called when the input buffer contains the start of a
 pattern. The first character is known to be a valid delimiter. The pattern is
 read, modifiers are interpreted, and a suitable local context is set up for
 this test. The pattern is then compiled.

 Arguments:  none

 Returns:    PR_OK     continue processing next line
             PR_SKIP   skip to a blank line
             PR_ABEND  abort the pcre2test run
 */

 static int
 process_pattern(void)
 {
 BOOL utf;
 uint32_t k;
 uint8_t *p = buffer;
 unsigned int delimiter = *p++;
 int errorcode;
 void *use_pat_context;
 uint32_t use_forbid_utf = forbid_utf;
 PCRE2_SIZE patlen;
 PCRE2_SIZE valgrind_access_length;
 PCRE2_SIZE erroroffset;

 /* The perltest.sh script supports only / as a delimiter. */

 if (restrict_for_perl_test && delimiter != '/')
   {
   fprintf(outfile, "** The only allowed delimiter after #perltest is '/'\n");
   return PR_ABEND;
   }

 /* Initialize the context and pattern/data controls for this test from the
 defaults. */

 PATCTXCPY(pat_context, default_pat_context);
 memcpy(&pat_patctl, &def_patctl, sizeof(patctl));

 /* Find the end of the pattern, reading more lines if necessary. */

 for(;;)
   {
   while (*p != 0)
     {
     if (*p == '\\' && p[1] != 0) p++;
       else if (*p == delimiter) break;
     p++;
     }
   if (*p != 0) break;
   if ((p = extend_inputline(infile, p, "    > ")) == NULL)
     {
     fprintf(outfile, "** Unexpected EOF\n");
     return PR_ABEND;
     }
   if (!INTERACTIVE(infile)) fprintf(outfile, "%s", (char *)p);
   }

 /* If the first character after the delimiter is backslash, make the pattern
 end with backslash. This is purely to provide a way of testing for the error
 message when a pattern ends with backslash. */

 if (p[1] == '\\') *p++ = '\\';

 /* Terminate the pattern at the delimiter, and compute the length. */

 *p++ = 0;
 patlen = p - buffer - 2;

 /* Look for modifiers and options after the final delimiter. */

 if (!decode_modifiers(p, CTX_PAT, &pat_patctl, NULL)) return PR_SKIP;

 /* Note that the match_invalid_utf option also sets utf when passed to
 pcre2_compile(). */

 utf = (pat_patctl.options & (PCRE2_UTF|PCRE2_MATCH_INVALID_UTF)) != 0;

 /* The utf8_input modifier is not allowed in 8-bit mode, and is mutually
 exclusive with the utf modifier. */

 if ((pat_patctl.control & CTL_UTF8_INPUT) != 0)
   {
   if (test_mode == PCRE8_MODE)
     {
     fprintf(outfile, "** The utf8_input modifier is not allowed in 8-bit mode\n");
     return PR_SKIP;
     }
   if (utf)
     {
     fprintf(outfile, "** The utf and utf8_input modifiers are mutually exclusive\n");
     return PR_SKIP;
     }
   }

 /* The convert and posix modifiers are mutually exclusive. */

 if (pat_patctl.convert_type != CONVERT_UNSET &&
     (pat_patctl.control & CTL_POSIX) != 0)
   {
   fprintf(outfile, "** The convert and posix modifiers are mutually exclusive\n");
   return PR_SKIP;
   }

 /* Check for mutually exclusive control modifiers. At present, these are all in
 the first control word. */

 for (k = 0; k < sizeof(exclusive_pat_controls)/sizeof(uint32_t); k++)
   {
   uint32_t c = pat_patctl.control & exclusive_pat_controls[k];
   if (c != 0 && c != (c & (~c+1)))
     {
     show_controls(c, 0, "** Not allowed together:");
     fprintf(outfile, "\n");
     return PR_SKIP;
     }
   }

 /* Assume full JIT compile for jitverify and/or jitfast if nothing else was
 specified. */

 if (pat_patctl.jit == 0 &&
     (pat_patctl.control & (CTL_JITVERIFY|CTL_JITFAST)) != 0)
   pat_patctl.jit = JIT_DEFAULT;

 /* Now copy the pattern to pbuffer8 for use in 8-bit testing and for reflecting
 in callouts. Convert from hex if requested (literal strings in quotes may be
 present within the hexadecimal pairs). The result must necessarily be fewer
 characters so will always fit in pbuffer8. */

 if ((pat_patctl.control & CTL_HEXPAT) != 0)
   {
   uint8_t *pp, *pt;
   uint32_t c, d;

   pt = pbuffer8;
   for (pp = buffer + 1; *pp != 0; pp++)
     {
     if (isspace(*pp)) continue;
     c = *pp++;

     /* Handle a literal substring */

     if (c == '\'' || c == '"')
       {
       uint8_t *pq = pp;
       for (;; pp++)
         {
         d = *pp;
         if (d == 0)
           {
           fprintf(outfile, "** Missing closing quote in hex pattern: "
             "opening quote is at offset %" PTR_FORM ".\n", pq - buffer - 2);
           return PR_SKIP;
           }
         if (d == c) break;
         *pt++ = d;
         }
       }

     /* Expect a hex pair */

     else
       {
       if (!isxdigit(c))
         {
         fprintf(outfile, "** Unexpected non-hex-digit '%c' at offset %"
           PTR_FORM " in hex pattern: quote missing?\n", c, pp - buffer - 2);
         return PR_SKIP;
         }
       if (*pp == 0)
         {
         fprintf(outfile, "** Odd number of digits in hex pattern\n");
         return PR_SKIP;
         }
       d = *pp;
       if (!isxdigit(d))
         {
         fprintf(outfile, "** Unexpected non-hex-digit '%c' at offset %"
           PTR_FORM " in hex pattern: quote missing?\n", d, pp - buffer - 1);
         return PR_SKIP;
         }
       c = toupper(c);
       d = toupper(d);
       *pt++ = ((isdigit(c)? (c - '0') : (c - 'A' + 10)) << 4) +
                (isdigit(d)? (d - '0') : (d - 'A' + 10));
       }
     }
   *pt = 0;
   patlen = pt - pbuffer8;
   }

 /* If not a hex string, process for repetition expansion if requested. */

 else if ((pat_patctl.control & CTL_EXPAND) != 0)
   {
   uint8_t *pp, *pt;

   pt = pbuffer8;
   for (pp = buffer + 1; *pp != 0; pp++)
     {
     uint8_t *pc = pp;
     uint32_t count = 1;
     size_t length = 1;

     /* Check for replication syntax; if not found, the defaults just set will
     prevail and one character will be copied. */

     if (pp[0] == '\\' && pp[1] == '[')
       {
       uint8_t *pe;
       for (pe = pp + 2; *pe != 0; pe++)
         {
         if (pe[0] == ']' && pe[1] == '{')
           {
           uint32_t clen = pe - pc - 2;
           uint32_t i = 0;
           unsigned long uli;
           char *endptr;

           pe += 2;
           uli = strtoul((const char *)pe, &endptr, 10);
           if (U32OVERFLOW(uli))
             {
             fprintf(outfile, "** Pattern repeat count too large\n");
             return PR_SKIP;
             }

           i = (uint32_t)uli;
           pe = (uint8_t *)endptr;
           if (*pe == '}')
             {
             if (i == 0)
               {
               fprintf(outfile, "** Zero repeat not allowed\n");
               return PR_SKIP;
               }
             pc += 2;
             count = i;
             length = clen;
             pp = pe;
             break;
             }
           }
         }
       }

     /* Add to output. If the buffer is too small expand it. The function for
     expanding buffers always keeps buffer and pbuffer8 in step as far as their
     size goes. */

     while (pt + count * length > pbuffer8 + pbuffer8_size)
       {
       size_t pc_offset = pc - buffer;
       size_t pp_offset = pp - buffer;
       size_t pt_offset = pt - pbuffer8;
       expand_input_buffers();
       pc = buffer + pc_offset;
       pp = buffer + pp_offset;
       pt = pbuffer8 + pt_offset;
       }

     for (; count > 0; count--)
       {
       memcpy(pt, pc, length);
       pt += length;
       }
     }

   *pt = 0;
   patlen = pt - pbuffer8;

   if ((pat_patctl.control & CTL_INFO) != 0)
     fprintf(outfile, "Expanded: %s\n", pbuffer8);
   }

 /* Neither hex nor expanded, just copy the input verbatim. */

 else
   {
   strncpy((char *)pbuffer8, (char *)(buffer+1), patlen + 1);
   }

 /* Sort out character tables */

 if (pat_patctl.locale[0] != 0)
   {
   if (pat_patctl.tables_id != 0)
     {
     fprintf(outfile, "** 'Locale' and 'tables' must not both be set\n");
     return PR_SKIP;
     }
   if (setlocale(LC_CTYPE, (const char *)pat_patctl.locale) == NULL)
     {
     fprintf(outfile, "** Failed to set locale '%s'\n", pat_patctl.locale);
     return PR_SKIP;
     }
   if (strcmp((const char *)pat_patctl.locale, (const char *)locale_name) != 0)
     {
     strcpy((char *)locale_name, (char *)pat_patctl.locale);
     if (locale_tables != NULL)
       {
       PCRE2_MAKETABLES_FREE(general_context, (void *)locale_tables);
       }
     PCRE2_MAKETABLES(locale_tables, general_context);
     }
   use_tables = locale_tables;
   }

 else switch (pat_patctl.tables_id)
   {
   case 0: use_tables = NULL; break;
   case 1: use_tables = tables1; break;
   case 2: use_tables = tables2; break;

   case 3:
   if (tables3 == NULL)
     {
     fprintf(outfile, "** 'Tables = 3' is invalid: binary tables have not "
       "been loaded\n");
     return PR_SKIP;
     }
   use_tables = tables3;
   break;

   default:
   fprintf(outfile, "** 'Tables' must specify 0, 1, 2, or 3.\n");
   return PR_SKIP;
   }

 PCRE2_SET_CHARACTER_TABLES(pat_context, use_tables);

 /* Set up for the stackguard test. */

 if (pat_patctl.stackguard_test != 0)
   {
   PCRE2_SET_COMPILE_RECURSION_GUARD(pat_context, stack_guard, NULL);
   }

 /* Handle compiling via the POSIX interface, which doesn't support the
 timing, showing, or debugging options, nor the ability to pass over
 local character tables. Neither does it have 16-bit or 32-bit support. */

 if ((pat_patctl.control & CTL_POSIX) != 0)
   {
 #ifdef SUPPORT_PCRE2_8
   int rc;
   int cflags = 0;
   const char *msg = "** Ignored with POSIX interface:";
 #endif

   if (test_mode != PCRE8_MODE)
     {
     fprintf(outfile, "** The POSIX interface is available only in 8-bit mode\n");
     return PR_SKIP;
     }

 #ifdef SUPPORT_PCRE2_8
   /* Check for features that the POSIX interface does not support. */

   if (pat_patctl.locale[0] != 0) prmsg(&msg, "locale");
   if (pat_patctl.replacement[0] != 0) prmsg(&msg, "replace");
   if (pat_patctl.tables_id != 0) prmsg(&msg, "tables");
   if (pat_patctl.stackguard_test != 0) prmsg(&msg, "stackguard");
   if (timeit > 0) prmsg(&msg, "timing");
   if (pat_patctl.jit != 0) prmsg(&msg, "JIT");

   if ((pat_patctl.options & ~POSIX_SUPPORTED_COMPILE_OPTIONS) != 0)
     {
     show_compile_options(
       pat_patctl.options & (uint32_t)(~POSIX_SUPPORTED_COMPILE_OPTIONS),
         msg, "");
     msg = "";
     }

   if ((FLD(pat_context, extra_options) &
        (uint32_t)(~POSIX_SUPPORTED_COMPILE_EXTRA_OPTIONS)) != 0)
     {
     show_compile_extra_options(
       FLD(pat_context, extra_options) &
         (uint32_t)(~POSIX_SUPPORTED_COMPILE_EXTRA_OPTIONS), msg, "");
     msg = "";
     }

   if ((pat_patctl.control & (uint32_t)(~POSIX_SUPPORTED_COMPILE_CONTROLS)) != 0 ||
       (pat_patctl.control2 & (uint32_t)(~POSIX_SUPPORTED_COMPILE_CONTROLS2)) != 0)
     {
     show_controls(
       pat_patctl.control & (uint32_t)(~POSIX_SUPPORTED_COMPILE_CONTROLS),
       pat_patctl.control2 & (uint32_t)(~POSIX_SUPPORTED_COMPILE_CONTROLS2),
       msg);
     msg = "";
     }

   if (local_newline_default != 0) prmsg(&msg, "#newline_default");
   if (FLD(pat_context, max_pattern_length) != PCRE2_UNSET)
     prmsg(&msg, "max_pattern_length");
   if (FLD(pat_context, parens_nest_limit) != PARENS_NEST_DEFAULT)
     prmsg(&msg, "parens_nest_limit");

   if (msg[0] == 0) fprintf(outfile, "\n");

   /* Translate PCRE2 options to POSIX options and then compile. */

   if (utf) cflags |= REG_UTF;
   if ((pat_patctl.control & CTL_POSIX_NOSUB) != 0) cflags |= REG_NOSUB;
   if ((pat_patctl.options & PCRE2_UCP) != 0) cflags |= REG_UCP;
   if ((pat_patctl.options & PCRE2_CASELESS) != 0) cflags |= REG_ICASE;
   if ((pat_patctl.options & PCRE2_LITERAL) != 0) cflags |= REG_NOSPEC;
   if ((pat_patctl.options & PCRE2_MULTILINE) != 0) cflags |= REG_NEWLINE;
   if ((pat_patctl.options & PCRE2_DOTALL) != 0) cflags |= REG_DOTALL;
   if ((pat_patctl.options & PCRE2_UNGREEDY) != 0) cflags |= REG_UNGREEDY;

   if ((pat_patctl.control & (CTL_HEXPAT|CTL_USE_LENGTH)) != 0)
     {
     preg.re_endp = (char *)pbuffer8 + patlen;
     cflags |= REG_PEND;
     }

   rc = regcomp(&preg, (char *)pbuffer8, cflags);

   /* Compiling failed */

   if (rc != 0)
     {
     size_t bsize, usize;
     int psize;

     preg.re_pcre2_code = NULL;     /* In case something was left in there */
     preg.re_match_data = NULL;

     bsize = (pat_patctl.regerror_buffsize != 0)?
       pat_patctl.regerror_buffsize : pbuffer8_size;
     if (bsize + 8 < pbuffer8_size)
       memcpy(pbuffer8 + bsize, "DEADBEEF", 8);
     usize = regerror(rc, &preg, (char *)pbuffer8, bsize);

     /* Inside regerror(), snprintf() is used. If the buffer is too small, some
     versions of snprintf() put a zero byte at the end, but others do not.
     Therefore, we print a maximum of one less than the size of the buffer. */

     psize = (int)bsize - 1;
     fprintf(outfile, "Failed: POSIX code %d: %.*s\n", rc, psize, pbuffer8);
     if (usize > bsize)
       {
       fprintf(outfile, "** regerror() message truncated\n");
       if (memcmp(pbuffer8 + bsize, "DEADBEEF", 8) != 0)
         fprintf(outfile, "** regerror() buffer overflow\n");
       }
     return PR_SKIP;
     }

   /* Compiling succeeded. Check that the values in the preg block are sensible.
   It can happen that pcre2test is accidentally linked with a different POSIX
   library which succeeds, but of course puts different things into preg. In
   this situation, calling regfree() may cause a segfault (or invalid free() in
   valgrind), so ensure that preg.re_pcre2_code is NULL, which suppresses the
   calling of regfree() on exit. */

   if (preg.re_pcre2_code == NULL ||
       ((pcre2_real_code_8 *)preg.re_pcre2_code)->magic_number != MAGIC_NUMBER ||
       ((pcre2_real_code_8 *)preg.re_pcre2_code)->top_bracket != preg.re_nsub ||
       preg.re_match_data == NULL ||
       preg.re_cflags != cflags)
     {
     fprintf(outfile,
       "** The regcomp() function returned zero (success), but the values set\n"
       "** in the preg block are not valid for PCRE2. Check that pcre2test is\n"
       "** linked with PCRE2's pcre2posix module (-lpcre2-posix) and not with\n"
       "** some other POSIX regex library.\n**\n");
     preg.re_pcre2_code = NULL;
     return PR_ABEND;
     }

   return PR_OK;
 #endif  /* SUPPORT_PCRE2_8 */
   }

 /* Handle compiling via the native interface. Controls that act later are
 ignored with "push". Replacements are locked out. */

 if ((pat_patctl.control & (CTL_PUSH|CTL_PUSHCOPY|CTL_PUSHTABLESCOPY)) != 0)
   {
   if (pat_patctl.replacement[0] != 0)
     {
     fprintf(outfile, "** Replacement text is not supported with 'push'.\n");
     return PR_OK;
     }
   if ((pat_patctl.control & ~PUSH_SUPPORTED_COMPILE_CONTROLS) != 0 ||
       (pat_patctl.control2 & ~PUSH_SUPPORTED_COMPILE_CONTROLS2) != 0)
     {
     show_controls(pat_patctl.control & ~PUSH_SUPPORTED_COMPILE_CONTROLS,
                   pat_patctl.control2 & ~PUSH_SUPPORTED_COMPILE_CONTROLS2,
       "** Ignored when compiled pattern is stacked with 'push':");
     fprintf(outfile, "\n");
     }
   if ((pat_patctl.control & PUSH_COMPILE_ONLY_CONTROLS) != 0 ||
       (pat_patctl.control2 & PUSH_COMPILE_ONLY_CONTROLS2) != 0)
     {
     show_controls(pat_patctl.control & PUSH_COMPILE_ONLY_CONTROLS,
                   pat_patctl.control2 & PUSH_COMPILE_ONLY_CONTROLS2,
       "** Applies only to compile when pattern is stacked with 'push':");
     fprintf(outfile, "\n");
     }
   }

 /* Convert the input in non-8-bit modes. */

 errorcode = 0;

 #ifdef SUPPORT_PCRE2_16
 if (test_mode == PCRE16_MODE) errorcode = to16(pbuffer8, utf, &patlen);
 #endif

 #ifdef SUPPORT_PCRE2_32
 if (test_mode == PCRE32_MODE) errorcode = to32(pbuffer8, utf, &patlen);
 #endif

 switch(errorcode)
   {
   case -1:
   fprintf(outfile, "** Failed: invalid UTF-8 string cannot be "
     "converted to %d-bit string\n", (test_mode == PCRE16_MODE)? 16:32);
   return PR_SKIP;

   case -2:
   fprintf(outfile, "** Failed: character value greater than 0x10ffff "
     "cannot be converted to UTF\n");
   return PR_SKIP;

   case -3:
   fprintf(outfile, "** Failed: character value greater than 0xffff "
     "cannot be converted to 16-bit in non-UTF mode\n");
   return PR_SKIP;

   default:
   break;
   }

 /* The pattern is now in pbuffer[8|16|32], with the length in code units in
 patlen. If it is to be converted, copy the result back afterwards so that it
 ends up back in the usual place. */

 if (pat_patctl.convert_type != CONVERT_UNSET)
   {
   int rc;
   int convert_return = PR_OK;
   uint32_t convert_options = pat_patctl.convert_type;
   void *converted_pattern;
   PCRE2_SIZE converted_length;

   if (pat_patctl.convert_length != 0)
     {
     converted_length = pat_patctl.convert_length;
     converted_pattern = malloc(converted_length * code_unit_size);
     if (converted_pattern == NULL)
       {
       fprintf(outfile, "** Failed: malloc failed for converted pattern\n");
       return PR_SKIP;
       }
     }
   else converted_pattern = NULL;  /* Let the library allocate */

   if (utf) convert_options |= PCRE2_CONVERT_UTF;
   if ((pat_patctl.options & PCRE2_NO_UTF_CHECK) != 0)
     convert_options |= PCRE2_CONVERT_NO_UTF_CHECK;

   CONCTXCPY(con_context, default_con_context);

   if (pat_patctl.convert_glob_escape != 0)
     {
     uint32_t escape = (pat_patctl.convert_glob_escape == '0')? 0 :
       pat_patctl.convert_glob_escape;
     PCRE2_SET_GLOB_ESCAPE(rc, con_context, escape);
     if (rc != 0)
       {
       fprintf(outfile, "** Invalid glob escape '%c'\n",
         pat_patctl.convert_glob_escape);
       convert_return = PR_SKIP;
       goto CONVERT_FINISH;
       }
     }

   if (pat_patctl.convert_glob_separator != 0)
     {
     PCRE2_SET_GLOB_SEPARATOR(rc, con_context, pat_patctl.convert_glob_separator);
     if (rc != 0)
       {
       fprintf(outfile, "** Invalid glob separator '%c'\n",
         pat_patctl.convert_glob_separator);
       convert_return = PR_SKIP;
       goto CONVERT_FINISH;
       }
     }

   PCRE2_PATTERN_CONVERT(rc, pbuffer, patlen, convert_options,
     &converted_pattern, &converted_length, con_context);

   if (rc != 0)
     {
     fprintf(outfile, "** Pattern conversion error at offset %" SIZ_FORM ": ",
       converted_length);
     convert_return = print_error_message(rc, "", "\n")? PR_SKIP:PR_ABEND;
     }

   /* Output the converted pattern, then copy it. */

   else
     {
     PCHARSV(converted_pattern, 0, converted_length, utf, outfile);
     fprintf(outfile, "\n");
     patlen = converted_length;
     CONVERT_COPY(pbuffer, converted_pattern, converted_length + 1);
     }

   /* Free the converted pattern. */

   CONVERT_FINISH:
   if (pat_patctl.convert_length != 0)
     free(converted_pattern);
   else
     PCRE2_CONVERTED_PATTERN_FREE(converted_pattern);

   /* Return if conversion was unsuccessful. */

   if (convert_return != PR_OK) return convert_return;
   }

 /* By default we pass a zero-terminated pattern, but a length is passed if
 "use_length" was specified or this is a hex pattern (which might contain binary
 zeros). When valgrind is supported, arrange for the unused part of the buffer
 to be marked as no access. */

 valgrind_access_length = patlen;
 if ((pat_patctl.control & (CTL_HEXPAT|CTL_USE_LENGTH)) == 0)
   {
   patlen = PCRE2_ZERO_TERMINATED;
   valgrind_access_length += 1;  /* For the terminating zero */
   }

 #ifdef SUPPORT_VALGRIND
 #ifdef SUPPORT_PCRE2_8
 if (test_mode == PCRE8_MODE && pbuffer8 != NULL)
   {
   VALGRIND_MAKE_MEM_NOACCESS(pbuffer8 + valgrind_access_length,
     pbuffer8_size - valgrind_access_length);
   }
 #endif
 #ifdef SUPPORT_PCRE2_16
 if (test_mode == PCRE16_MODE && pbuffer16 != NULL)
   {
   VALGRIND_MAKE_MEM_NOACCESS(pbuffer16 + valgrind_access_length,
     pbuffer16_size - valgrind_access_length*sizeof(uint16_t));
   }
 #endif
 #ifdef SUPPORT_PCRE2_32
 if (test_mode == PCRE32_MODE && pbuffer32 != NULL)
   {
   VALGRIND_MAKE_MEM_NOACCESS(pbuffer32 + valgrind_access_length,
     pbuffer32_size - valgrind_access_length*sizeof(uint32_t));
   }
 #endif
 #else  /* Valgrind not supported */
 (void)valgrind_access_length;  /* Avoid compiler warning */
 #endif

 /* If #newline_default has been used and the library was not compiled with an
 appropriate default newline setting, local_newline_default will be non-zero. We
 use this if there is no explicit newline modifier. */

 if ((pat_patctl.control2 & CTL2_NL_SET) == 0 && local_newline_default != 0)
   {
   SETFLD(pat_context, newline_convention, local_newline_default);
   }

 /* The null_context modifier is used to test calling pcre2_compile() with a
 NULL context. */

 use_pat_context = ((pat_patctl.control & CTL_NULLCONTEXT) != 0)?
   NULL : PTR(pat_context);

 /* If PCRE2_LITERAL is set, set use_forbid_utf zero because PCRE2_NEVER_UTF
 and PCRE2_NEVER_UCP are invalid with it. */

 if ((pat_patctl.options & PCRE2_LITERAL) != 0) use_forbid_utf = 0;

 /* Compile many times when timing. */

 if (timeit > 0)
   {
   int i;
   clock_t time_taken = 0;
   for (i = 0; i < timeit; i++)
     {
     clock_t start_time = clock();
     PCRE2_COMPILE(compiled_code, pbuffer, patlen,
       pat_patctl.options|use_forbid_utf, &errorcode, &erroroffset,
         use_pat_context);
     time_taken += clock() - start_time;
     if (TEST(compiled_code, !=, NULL))
       { SUB1(pcre2_code_free, compiled_code); }
     }
   total_compile_time += time_taken;
   fprintf(outfile, "Compile time %.4f milliseconds\n",
     (((double)time_taken * 1000.0) / (double)timeit) /
       (double)CLOCKS_PER_SEC);
   }

 /* A final compile that is used "for real". */

 PCRE2_COMPILE(compiled_code, pbuffer, patlen, pat_patctl.options|use_forbid_utf,
   &errorcode, &erroroffset, use_pat_context);

 /* Call the JIT compiler if requested. When timing, we must free and recompile
 the pattern each time because that is the only way to free the JIT compiled
 code. We know that compilation will always succeed. */

 if (TEST(compiled_code, !=, NULL) && pat_patctl.jit != 0)
   {
   if (timeit > 0)
     {
     int i;
     clock_t time_taken = 0;

     for (i = 0; i < timeit; i++)
       {
       clock_t start_time;
       SUB1(pcre2_code_free, compiled_code);
       PCRE2_COMPILE(compiled_code, pbuffer, patlen,
         pat_patctl.options|use_forbid_utf, &errorcode, &erroroffset,
         use_pat_context);
       start_time = clock();
       PCRE2_JIT_COMPILE(jitrc, compiled_code, pat_patctl.jit);
       time_taken += clock() - start_time;
       }
     total_jit_compile_time += time_taken;
     fprintf(outfile, "JIT compile  %.4f milliseconds\n",
       (((double)time_taken * 1000.0) / (double)timeit) /
         (double)CLOCKS_PER_SEC);
     }
   else
     {
     PCRE2_JIT_COMPILE(jitrc, compiled_code, pat_patctl.jit);
     }
   }

 /* If valgrind is supported, mark the pbuffer as accessible again. The 16-bit
 and 32-bit buffers can be marked completely undefined, but we must leave the
 pattern in the 8-bit buffer defined because it may be read from a callout
 during matching. */

 #ifdef SUPPORT_VALGRIND
 #ifdef SUPPORT_PCRE2_8
 if (test_mode == PCRE8_MODE)
   {
   VALGRIND_MAKE_MEM_UNDEFINED(pbuffer8 + valgrind_access_length,
     pbuffer8_size - valgrind_access_length);
   }
 #endif
 #ifdef SUPPORT_PCRE2_16
 if (test_mode == PCRE16_MODE)
   {
   VALGRIND_MAKE_MEM_UNDEFINED(pbuffer16, pbuffer16_size);
   }
 #endif
 #ifdef SUPPORT_PCRE2_32
 if (test_mode == PCRE32_MODE)
   {
   VALGRIND_MAKE_MEM_UNDEFINED(pbuffer32, pbuffer32_size);
   }
 #endif
 #endif

 /* Compilation failed; go back for another re, skipping to blank line
 if non-interactive. */

 if (TEST(compiled_code, ==, NULL))
   {
   fprintf(outfile, "Failed: error %d at offset %d: ", errorcode,
     (int)erroroffset);
   if (!print_error_message(errorcode, "", "\n")) return PR_ABEND;
   return PR_SKIP;
   }

 /* If forbid_utf is non-zero, we are running a non-UTF test. UTF and UCP are
 locked out at compile time, but we must also check for occurrences of \P, \p,
 and \X, which are only supported when Unicode is supported. */

 if (forbid_utf != 0)
   {
   if ((FLD(compiled_code, flags) & PCRE2_HASBKPORX) != 0)
     {
     fprintf(outfile, "** \\P, \\p, and \\X are not allowed after the "
       "#forbid_utf command\n");
     return PR_SKIP;
     }
   }

 /* Remember the maximum lookbehind, for partial matching. */

 if (pattern_info(PCRE2_INFO_MAXLOOKBEHIND, &maxlookbehind, FALSE) != 0)
   return PR_ABEND;

 /* Remember the number of captures. */

 if (pattern_info(PCRE2_INFO_CAPTURECOUNT, &maxcapcount, FALSE) < 0)
   return PR_ABEND;

 /* If an explicit newline modifier was given, set the information flag in the
 pattern so that it is preserved over push/pop. */

 if ((pat_patctl.control2 & CTL2_NL_SET) != 0)
   {
   SETFLD(compiled_code, flags, FLD(compiled_code, flags) | PCRE2_NL_SET);
   }

 /* Output code size and other information if requested. */

 if ((pat_patctl.control & CTL_MEMORY) != 0) show_memory_info();
 if ((pat_patctl.control2 & CTL2_FRAMESIZE) != 0) show_framesize();
 if ((pat_patctl.control & CTL_ANYINFO) != 0)
   {
   int rc = show_pattern_info();
   if (rc != PR_OK) return rc;
   }

 /* The "push" control requests that the compiled pattern be remembered on a
 stack. This is mainly for testing the serialization functionality. */

 if ((pat_patctl.control & CTL_PUSH) != 0)
   {
   if (patstacknext >= PATSTACKSIZE)
     {
     fprintf(outfile, "** Too many pushed patterns (max %d)\n", PATSTACKSIZE);
     return PR_ABEND;
     }
   patstack[patstacknext++] = PTR(compiled_code);
   SET(compiled_code, NULL);
   }

 /* The "pushcopy" and "pushtablescopy" controls are similar, but push a
 copy of the pattern, the latter with a copy of its character tables. This tests
 the pcre2_code_copy() and pcre2_code_copy_with_tables() functions. */

 if ((pat_patctl.control & (CTL_PUSHCOPY|CTL_PUSHTABLESCOPY)) != 0)
   {
   if (patstacknext >= PATSTACKSIZE)
     {
     fprintf(outfile, "** Too many pushed patterns (max %d)\n", PATSTACKSIZE);
     return PR_ABEND;
     }
   if ((pat_patctl.control & CTL_PUSHCOPY) != 0)
     {
     PCRE2_CODE_COPY_TO_VOID(patstack[patstacknext++], compiled_code);
     }
   else
     {
     PCRE2_CODE_COPY_WITH_TABLES_TO_VOID(patstack[patstacknext++],
       compiled_code); }
   }

 return PR_OK;
 }


 /*************************************************
 *          Check heap, match or depth limit      *
 *************************************************/

 /* This is used for DFA, normal, and JIT fast matching. For DFA matching it
 should only be called with the third argument set to PCRE2_ERROR_DEPTHLIMIT.

 Arguments:
   pp        the subject string
   ulen      length of subject or PCRE2_ZERO_TERMINATED
   errnumber defines which limit to test
   msg       string to include in final message

 Returns:    the return from the final match function call
 */

 static int
 check_match_limit(uint8_t *pp, PCRE2_SIZE ulen, int errnumber, const char *msg)
 {
 int capcount;
 uint32_t min = 0;
 uint32_t mid = 64;
 uint32_t max = UINT32_MAX;

 PCRE2_SET_MATCH_LIMIT(dat_context, max);
 PCRE2_SET_DEPTH_LIMIT(dat_context, max);
 PCRE2_SET_HEAP_LIMIT(dat_context, max);

 for (;;)
   {
   uint32_t stack_start = 0;

   /* If we are checking the heap limit, free any frames vector that is cached
   in the match_data so we always start without one. */

   if (errnumber == PCRE2_ERROR_HEAPLIMIT)
     {
     PCRE2_SET_HEAP_LIMIT(dat_context, mid);

 #ifdef SUPPORT_PCRE2_8
     if (code_unit_size == 1)
       {
       match_data8->memctl.free(match_data8->heapframes,
         match_data8->memctl.memory_data);
       match_data8->heapframes = NULL;
       match_data8->heapframes_size = 0;
       }
 #endif

 #ifdef SUPPORT_PCRE2_16
     if (code_unit_size == 2)
       {
       match_data16->memctl.free(match_data16->heapframes,
         match_data16->memctl.memory_data);
       match_data16->heapframes = NULL;
       match_data16->heapframes_size = 0;
       }
 #endif

 #ifdef SUPPORT_PCRE2_32
     if (code_unit_size == 4)
       {
       match_data32->memctl.free(match_data32->heapframes,
         match_data32->memctl.memory_data);
       match_data32->heapframes = NULL;
       match_data32->heapframes_size = 0;
       }
 #endif
     }

   /* No need to mess with the frames vector for match or depth limits. */

   else if (errnumber == PCRE2_ERROR_MATCHLIMIT)
     {
     PCRE2_SET_MATCH_LIMIT(dat_context, mid);
     }
   else
     {
     PCRE2_SET_DEPTH_LIMIT(dat_context, mid);
     }

   /* Do the appropriate match */

   if ((dat_datctl.control & CTL_DFA) != 0)
     {
     stack_start = DFA_START_RWS_SIZE/1024;
     if (dfa_workspace == NULL)
       dfa_workspace = (int *)malloc(DFA_WS_DIMENSION*sizeof(int));
     if (dfa_matched++ == 0)
       dfa_workspace[0] = -1;  /* To catch bad restart */
     PCRE2_DFA_MATCH(capcount, compiled_code, pp, ulen, dat_datctl.offset,
       dat_datctl.options, match_data,
       PTR(dat_context), dfa_workspace, DFA_WS_DIMENSION);
     }

   else if ((pat_patctl.control & CTL_JITFAST) != 0)
     PCRE2_JIT_MATCH(capcount, compiled_code, pp, ulen, dat_datctl.offset,
       dat_datctl.options, match_data, PTR(dat_context));

   else
     {
     PCRE2_MATCH(capcount, compiled_code, pp, ulen, dat_datctl.offset,
       dat_datctl.options, match_data, PTR(dat_context));
     }

   if (capcount == errnumber)
     {
     if ((mid & 0x80000000u) != 0)
       {
       fprintf(outfile, "Can't find minimum %s limit: check pattern for "
         "restriction\n", msg);
       break;
       }

     min = mid;
     mid = (mid == max - 1)? max : (max != UINT32_MAX)? (min + max)/2 : mid*2;
     }
   else if (capcount >= 0 ||
            capcount == PCRE2_ERROR_NOMATCH ||
            capcount == PCRE2_ERROR_PARTIAL)
     {
     /* If we've not hit the error with a heap limit less than the size of the
     initial stack frame vector (for pcre2_match()) or the initial stack
     workspace vector (for pcre2_dfa_match()), the heap is not being used, so
     the minimum limit is zero; there's no need to go on. The other limits are
     always greater than zero. */

     if (errnumber == PCRE2_ERROR_HEAPLIMIT && mid < stack_start)
       {
       fprintf(outfile, "Minimum %s limit = 0\n", msg);
       break;
       }
     if (mid == min + 1)
       {
       fprintf(outfile, "Minimum %s limit = %d\n", msg, mid);
       break;
       }
     max = mid;
     mid = (min + max)/2;
     }
   else break;    /* Some other error */
   }

 return capcount;
 }


 /*************************************************
 *        Substitute callout function             *
 *************************************************/

 /* Called from pcre2_substitute() when the substitute_callout modifier is set.
 Print out the data that is passed back. The substitute callout block is
 identical for all code unit widths, so we just pick one.

 Arguments:
   scb         pointer to substitute callout block
   data_ptr    callout data

 Returns:      nothing
 */

 static int
 substitute_callout_function(pcre2_substitute_callout_block_8 *scb,
   void *data_ptr)
 {
 int yield = 0;
 BOOL utf = (FLD(compiled_code, overall_options) & PCRE2_UTF) != 0;
 (void)data_ptr;   /* Not used */

 fprintf(outfile, "%2d(%d) Old %" SIZ_FORM " %" SIZ_FORM " \"",
   scb->subscount, scb->oveccount,
   scb->ovector[0], scb->ovector[1]);

 PCHARSV(scb->input, scb->ovector[0], scb->ovector[1] - scb->ovector[0],
   utf, outfile);

 fprintf(outfile, "\" New %" SIZ_FORM " %" SIZ_FORM " \"",
   scb->output_offsets[0], scb->output_offsets[1]);

 PCHARSV(scb->output, scb->output_offsets[0],
   scb->output_offsets[1] - scb->output_offsets[0], utf, outfile);

 if (scb->subscount == dat_datctl.substitute_stop)
   {
   yield = -1;
   fprintf(outfile, " STOPPED");
   }
 else if (scb->subscount == dat_datctl.substitute_skip)
   {
   yield = +1;
   fprintf(outfile, " SKIPPED");
   }

 fprintf(outfile, "\"\n");
 return yield;
 }


 /*************************************************
 *              Callout function                  *
 *************************************************/

 /* Called from a PCRE2 library as a result of the (?C) item. We print out where
 we are in the match (unless suppressed). Yield zero unless more callouts than
 the fail count, or the callout data is not zero. The only differences in the
 callout block for different code unit widths are that the pointers to the
 subject, the most recent MARK, and a callout argument string point to strings
 of the appropriate width. Casts can be used to deal with this.

 Arguments:
   cb                a pointer to a callout block
   callout_data_ptr  the provided callout data

 Returns:            0 or 1 or an error, as determined by settings
 */

 static int
 callout_function(pcre2_callout_block_8 *cb, void *callout_data_ptr)
 {
 FILE *f, *fdefault;
 uint32_t i, pre_start, post_start, subject_length;
 PCRE2_SIZE current_position;
 BOOL utf = (FLD(compiled_code, overall_options) & PCRE2_UTF) != 0;
 BOOL callout_capture = (dat_datctl.control & CTL_CALLOUT_CAPTURE) != 0;
 BOOL callout_where = (dat_datctl.control2 & CTL2_CALLOUT_NO_WHERE) == 0;

 /* The FILE f is used for echoing the subject string if it is non-NULL. This
 happens only once in simple cases, but we want to repeat after any additional
 output caused by CALLOUT_EXTRA. */

 fdefault = (!first_callout && !callout_capture && cb->callout_string == NULL)?
   NULL : outfile;

 if ((dat_datctl.control2 & CTL2_CALLOUT_EXTRA) != 0)
   {
   f = outfile;
   switch (cb->callout_flags)
     {
     case PCRE2_CALLOUT_BACKTRACK:
     fprintf(f, "Backtrack\n");
     break;

     case PCRE2_CALLOUT_STARTMATCH|PCRE2_CALLOUT_BACKTRACK:
     fprintf(f, "Backtrack\nNo other matching paths\n");
     /* Fall through */

     case PCRE2_CALLOUT_STARTMATCH:
     fprintf(f, "New match attempt\n");
     break;

     default:
     f = fdefault;
     break;
     }
   }
 else f = fdefault;

 /* For a callout with a string argument, show the string first because there
 isn't a tidy way to fit it in the rest of the data. */

 if (cb->callout_string != NULL)
   {
   uint32_t delimiter = CODE_UNIT(cb->callout_string, -1);
   fprintf(outfile, "Callout (%" SIZ_FORM "): %c",
     cb->callout_string_offset, delimiter);
   PCHARSV(cb->callout_string, 0,
     cb->callout_string_length, utf, outfile);
   for (i = 0; callout_start_delims[i] != 0; i++)
     if (delimiter == callout_start_delims[i])
       {
       delimiter = callout_end_delims[i];
       break;
       }
   fprintf(outfile, "%c", delimiter);
   if (!callout_capture) fprintf(outfile, "\n");
   }

 /* Show captured strings if required */

 if (callout_capture)
   {
   if (cb->callout_string == NULL)
     fprintf(outfile, "Callout %d:", cb->callout_number);
   fprintf(outfile, " last capture = %d\n", cb->capture_last);
   for (i = 2; i < cb->capture_top * 2; i += 2)
     {
     fprintf(outfile, "%2d: ", i/2);
     if (cb->offset_vector[i] == PCRE2_UNSET)
       fprintf(outfile, "<unset>");
     else
       {
       PCHARSV(cb->subject, cb->offset_vector[i],
         cb->offset_vector[i+1] - cb->offset_vector[i], utf, f);
       }
     fprintf(outfile, "\n");
     }
   }

 /* Unless suppressed, re-print the subject in canonical form (with escapes for
 non-printing characters), the first time, or if giving full details. On
 subsequent calls in the same match, we use PCHARS() just to find the printed
 lengths of the substrings. */

 if (callout_where)
   {
   if (f != NULL) fprintf(f, "--->");

   /* The subject before the match start. */

   PCHARS(pre_start, cb->subject, 0, cb->start_match, utf, f);

   /* If a lookbehind is involved, the current position may be earlier than the
   match start. If so, use the match start instead. */

   current_position = (cb->current_position >= cb->start_match)?
     cb->current_position : cb->start_match;

   /* The subject between the match start and the current position. */

   PCHARS(post_start, cb->subject, cb->start_match,
     current_position - cb->start_match, utf, f);

   /* Print from the current position to the end. */

   PCHARSV(cb->subject, current_position, cb->subject_length - current_position,
     utf, f);

   /* Calculate the total subject printed length (no print). */

   PCHARS(subject_length, cb->subject, 0, cb->subject_length, utf, NULL);

   if (f != NULL) fprintf(f, "\n");

   /* For automatic callouts, show the pattern offset. Otherwise, for a
   numerical callout whose number has not already been shown with captured
   strings, show the number here. A callout with a string argument has been
   displayed above. */

   if (cb->callout_number == 255)
     {
     fprintf(outfile, "%+3d ", (int)cb->pattern_position);
     if (cb->pattern_position > 99) fprintf(outfile, "\n    ");
     }
   else
     {
     if (callout_capture || cb->callout_string != NULL) fprintf(outfile, "    ");
       else fprintf(outfile, "%3d ", cb->callout_number);
     }

   /* Now show position indicators */

   for (i = 0; i < pre_start; i++) fprintf(outfile, " ");
   fprintf(outfile, "^");

   if (post_start > 0)
     {
     for (i = 0; i < post_start - 1; i++) fprintf(outfile, " ");
     fprintf(outfile, "^");
     }

   for (i = 0; i < subject_length - pre_start - post_start + 4; i++)
     fprintf(outfile, " ");

   if (cb->next_item_length != 0)
     fprintf(outfile, "%.*s", (int)(cb->next_item_length),
       pbuffer8 + cb->pattern_position);
   else
     fprintf(outfile, "End of pattern");

   fprintf(outfile, "\n");
   }

 first_callout = FALSE;

 /* Show any mark info */

 if (cb->mark != last_callout_mark)
   {
   if (cb->mark == NULL)
     fprintf(outfile, "Latest Mark: <unset>\n");
   else
     {
     fprintf(outfile, "Latest Mark: ");
     PCHARSV(cb->mark, -1, -1, utf, outfile);
     putc('\n', outfile);
     }
   last_callout_mark = cb->mark;
   }

 /* Show callout data */

 if (callout_data_ptr != NULL)
   {
   int callout_data = *((int32_t *)callout_data_ptr);
   if (callout_data != 0)
     {
     fprintf(outfile, "Callout data = %d\n", callout_data);
     return callout_data;
     }
   }

 /* Keep count and give the appropriate return code */

 callout_count++;

 if (cb->callout_number == dat_datctl.cerror[0] &&
     callout_count >= dat_datctl.cerror[1])
   return PCRE2_ERROR_CALLOUT;

 if (cb->callout_number == dat_datctl.cfail[0] &&
     callout_count >= dat_datctl.cfail[1])
   return 1;

 return 0;
 }


 /*************************************************
 *       Handle *MARK and copy/get tests          *
 *************************************************/

 /* This function is called after complete and partial matches. It runs the
 tests for substring extraction.

 Arguments:
   utf       TRUE for utf
   capcount  return from pcre2_match()

 Returns:    FALSE if print_error_message() fails
 */

 static BOOL
 copy_and_get(BOOL utf, int capcount)
 {
 int i;
 uint8_t *nptr;

 /* Test copy strings by number */

 for (i = 0; i < MAXCPYGET && dat_datctl.copy_numbers[i] >= 0; i++)
   {
   int rc;
   PCRE2_SIZE length, length2;
   uint32_t copybuffer[256];
   uint32_t n = (uint32_t)(dat_datctl.copy_numbers[i]);
   length = sizeof(copybuffer)/code_unit_size;
   PCRE2_SUBSTRING_COPY_BYNUMBER(rc, match_data, n, copybuffer, &length);
   if (rc < 0)
     {
     fprintf(outfile, "Copy substring %d failed (%d): ", n, rc);
     if (!print_error_message(rc, "", "\n")) return FALSE;
     }
   else
     {
     PCRE2_SUBSTRING_LENGTH_BYNUMBER(rc, match_data, n, &length2);
     if (rc < 0)
       {
       fprintf(outfile, "Get substring %d length failed (%d): ", n, rc);
       if (!print_error_message(rc, "", "\n")) return FALSE;
       }
     else if (length2 != length)
       {
       fprintf(outfile, "Mismatched substring lengths: %"
         SIZ_FORM " %" SIZ_FORM "\n", length, length2);
       }
     fprintf(outfile, "%2dC ", n);
     PCHARSV(copybuffer, 0, length, utf, outfile);
     fprintf(outfile, " (%" SIZ_FORM ")\n", length);
     }
   }

 /* Test copy strings by name */

 nptr = dat_datctl.copy_names;
 for (;;)
   {
   int rc;
   int groupnumber;
   PCRE2_SIZE length, length2;
   uint32_t copybuffer[256];
   int namelen = strlen((const char *)nptr);
 #if defined SUPPORT_PCRE2_16 || defined SUPPORT_PCRE2_32
   PCRE2_SIZE cnl = namelen;
 #endif
   if (namelen == 0) break;

 #ifdef SUPPORT_PCRE2_8
   if (test_mode == PCRE8_MODE) strcpy((char *)pbuffer8, (char *)nptr);
 #endif
 #ifdef SUPPORT_PCRE2_16
   if (test_mode == PCRE16_MODE)(void)to16(nptr, utf, &cnl);
 #endif
 #ifdef SUPPORT_PCRE2_32
   if (test_mode == PCRE32_MODE)(void)to32(nptr, utf, &cnl);
 #endif

   PCRE2_SUBSTRING_NUMBER_FROM_NAME(groupnumber, compiled_code, pbuffer);
   if (groupnumber < 0 && groupnumber != PCRE2_ERROR_NOUNIQUESUBSTRING)
     fprintf(outfile, "Number not found for group '%s'\n", nptr);

   length = sizeof(copybuffer)/code_unit_size;
   PCRE2_SUBSTRING_COPY_BYNAME(rc, match_data, pbuffer, copybuffer, &length);
   if (rc < 0)
     {
     fprintf(outfile, "Copy substring '%s' failed (%d): ", nptr, rc);
     if (!print_error_message(rc, "", "\n")) return FALSE;
     }
   else
     {
     PCRE2_SUBSTRING_LENGTH_BYNAME(rc, match_data, pbuffer, &length2);
     if (rc < 0)
       {
       fprintf(outfile, "Get substring '%s' length failed (%d): ", nptr, rc);
       if (!print_error_message(rc, "", "\n")) return FALSE;
       }
     else if (length2 != length)
       {
       fprintf(outfile, "Mismatched substring lengths: %"
         SIZ_FORM " %" SIZ_FORM "\n", length, length2);
       }
     fprintf(outfile, "  C ");
     PCHARSV(copybuffer, 0, length, utf, outfile);
     fprintf(outfile, " (%" SIZ_FORM ") %s", length, nptr);
     if (groupnumber >= 0) fprintf(outfile, " (group %d)\n", groupnumber);
       else fprintf(outfile, " (non-unique)\n");
     }
   nptr += namelen + 1;
   }

 /* Test get strings by number */

 for (i = 0; i < MAXCPYGET && dat_datctl.get_numbers[i] >= 0; i++)
   {
   int rc;
   PCRE2_SIZE length;
   void *gotbuffer;
   uint32_t n = (uint32_t)(dat_datctl.get_numbers[i]);
   PCRE2_SUBSTRING_GET_BYNUMBER(rc, match_data, n, &gotbuffer, &length);
   if (rc < 0)
     {
     fprintf(outfile, "Get substring %d failed (%d): ", n, rc);
     if (!print_error_message(rc, "", "\n")) return FALSE;
     }
   else
     {
     fprintf(outfile, "%2dG ", n);
     PCHARSV(gotbuffer, 0, length, utf, outfile);
     fprintf(outfile, " (%" SIZ_FORM ")\n", length);
     PCRE2_SUBSTRING_FREE(gotbuffer);
     }
   }

 /* Test get strings by name */

 nptr = dat_datctl.get_names;
 for (;;)
   {
   PCRE2_SIZE length;
   void *gotbuffer;
   int rc;
   int groupnumber;
   int namelen = strlen((const char *)nptr);
 #if defined SUPPORT_PCRE2_16 || defined SUPPORT_PCRE2_32
   PCRE2_SIZE cnl = namelen;
 #endif
   if (namelen == 0) break;

 #ifdef SUPPORT_PCRE2_8
   if (test_mode == PCRE8_MODE) strcpy((char *)pbuffer8, (char *)nptr);
 #endif
 #ifdef SUPPORT_PCRE2_16
   if (test_mode == PCRE16_MODE)(void)to16(nptr, utf, &cnl);
 #endif
 #ifdef SUPPORT_PCRE2_32
   if (test_mode == PCRE32_MODE)(void)to32(nptr, utf, &cnl);
 #endif

   PCRE2_SUBSTRING_NUMBER_FROM_NAME(groupnumber, compiled_code, pbuffer);
   if (groupnumber < 0 && groupnumber != PCRE2_ERROR_NOUNIQUESUBSTRING)
     fprintf(outfile, "Number not found for group '%s'\n", nptr);

   PCRE2_SUBSTRING_GET_BYNAME(rc, match_data, pbuffer, &gotbuffer, &length);
   if (rc < 0)
     {
     fprintf(outfile, "Get substring '%s' failed (%d): ", nptr, rc);
     if (!print_error_message(rc, "", "\n")) return FALSE;
     }
   else
     {
     fprintf(outfile, "  G ");
     PCHARSV(gotbuffer, 0, length, utf, outfile);
     fprintf(outfile, " (%" SIZ_FORM ") %s", length, nptr);
     if (groupnumber >= 0) fprintf(outfile, " (group %d)\n", groupnumber);
       else fprintf(outfile, " (non-unique)\n");
     PCRE2_SUBSTRING_FREE(gotbuffer);
     }
   nptr += namelen + 1;
   }

 /* Test getting the complete list of captured strings. */

 if ((dat_datctl.control & CTL_GETALL) != 0)
   {
   int rc;
   void **stringlist;
   PCRE2_SIZE *lengths;
   PCRE2_SUBSTRING_LIST_GET(rc, match_data, &stringlist, &lengths);
   if (rc < 0)
     {
     fprintf(outfile, "get substring list failed (%d): ", rc);
     if (!print_error_message(rc, "", "\n")) return FALSE;
     }
   else
     {
     for (i = 0; i < capcount; i++)
       {
       fprintf(outfile, "%2dL ", i);
       PCHARSV(stringlist[i], 0, lengths[i], utf, outfile);
       putc('\n', outfile);
       }
     if (stringlist[i] != NULL)
       fprintf(outfile, "string list not terminated by NULL\n");
     PCRE2_SUBSTRING_LIST_FREE(stringlist);
     }
   }

 return TRUE;
 }


 /*************************************************
 *            Show an entire ovector              *
 *************************************************/

 /* This function is called after partial matching or match failure, when the
 "allvector" modifier is set. It is a means of checking the contents of the
 entire ovector, to ensure no modification of fields that should be unchanged.

 Arguments:
   ovector      points to the ovector
   oveccount    number of pairs

 Returns:       nothing
 */

 static void
 show_ovector(PCRE2_SIZE *ovector, uint32_t oveccount)
 {
 uint32_t i;
 for (i = 0; i < 2*oveccount; i += 2)
   {
   PCRE2_SIZE start = ovector[i];
   PCRE2_SIZE end = ovector[i+1];

   fprintf(outfile, "%2d: ", i/2);
   if (start == PCRE2_UNSET && end == PCRE2_UNSET)
     fprintf(outfile, "<unset>\n");
   else if (start == JUNK_OFFSET && end == JUNK_OFFSET)
     fprintf(outfile, "<unchanged>\n");
   else
     fprintf(outfile, "%ld %ld\n", (unsigned long int)start,
       (unsigned long int)end);
   }
 }


 /*************************************************
 *               Process a data line              *
 *************************************************/

 /* The line is in buffer; it will not be empty.

 Arguments:  none

 Returns:    PR_OK     continue processing next line
             PR_SKIP   skip to a blank line
             PR_ABEND  abort the pcre2test run
 */

 static int
 process_data(void)
 {
 PCRE2_SIZE len, ulen, arg_ulen;
 uint32_t gmatched;
 uint32_t c, k;
 uint32_t g_notempty = 0;
 uint8_t *p, *pp, *start_rep;
 size_t needlen;
 void *use_dat_context;
 BOOL utf;
 BOOL subject_literal;

 PCRE2_SIZE *ovector;
 PCRE2_SIZE ovecsave[3];
 uint32_t oveccount;

 #ifdef SUPPORT_PCRE2_8
 uint8_t *q8 = NULL;
 #endif
 #ifdef SUPPORT_PCRE2_16
 uint16_t *q16 = NULL;
 #endif
 #ifdef SUPPORT_PCRE2_32
 uint32_t *q32 = NULL;
 #endif

 subject_literal = (pat_patctl.control2 & CTL2_SUBJECT_LITERAL) != 0;

 /* Copy the default context and data control blocks to the active ones. Then
 copy from the pattern the controls that can be set in either the pattern or the
 data. This allows them to be overridden in the data line. We do not do this for
 options because those that are common apply separately to compiling and
 matching. */

 DATCTXCPY(dat_context, default_dat_context);
 memcpy(&dat_datctl, &def_datctl, sizeof(datctl));
 dat_datctl.control |= (pat_patctl.control & CTL_ALLPD);
 dat_datctl.control2 |= (pat_patctl.control2 & CTL2_ALLPD);
 strcpy((char *)dat_datctl.replacement, (char *)pat_patctl.replacement);
 if (dat_datctl.jitstack == 0) dat_datctl.jitstack = pat_patctl.jitstack;

 if (dat_datctl.substitute_skip == 0)
     dat_datctl.substitute_skip = pat_patctl.substitute_skip;
 if (dat_datctl.substitute_stop == 0)
     dat_datctl.substitute_stop = pat_patctl.substitute_stop;

 /* Initialize for scanning the data line. */

 #ifdef SUPPORT_PCRE2_8
 utf = ((((pat_patctl.control & CTL_POSIX) != 0)?
   ((pcre2_real_code_8 *)preg.re_pcre2_code)->overall_options :
   FLD(compiled_code, overall_options)) & PCRE2_UTF) != 0;
 #else
 utf = (FLD(compiled_code, overall_options) & PCRE2_UTF) != 0;
 #endif

 start_rep = NULL;
 len = strlen((const char *)buffer);
 while (len > 0 && isspace(buffer[len-1])) len--;
 buffer[len] = 0;
 p = buffer;
 while (isspace(*p)) p++;

 /* Check that the data is well-formed UTF-8 if we're in UTF mode. To create
 invalid input to pcre2_match(), you must use \x?? or \x{} sequences. */

 if (utf)
   {
   uint8_t *q;
   uint32_t cc;
   int n = 1;
   for (q = p; n > 0 && *q; q += n) n = utf82ord(q, &cc);
   if (n <= 0)
     {
     fprintf(outfile, "** Failed: invalid UTF-8 string cannot be used as input "
       "in UTF mode\n");
     return PR_OK;
     }
   }

 #ifdef SUPPORT_VALGRIND
 /* Mark the dbuffer as addressable but undefined again. */
 if (dbuffer != NULL)
   {
   VALGRIND_MAKE_MEM_UNDEFINED(dbuffer, dbuffer_size);
   }
 #endif

 /* Allocate a buffer to hold the data line; len+1 is an upper bound on
 the number of code units that will be needed (though the buffer may have to be
 extended if replication is involved). */

 needlen = (size_t)((len+1) * code_unit_size);
 if (dbuffer == NULL || needlen >= dbuffer_size)
   {
   while (needlen >= dbuffer_size) dbuffer_size *= 2;
   dbuffer = (uint8_t *)realloc(dbuffer, dbuffer_size);
   if (dbuffer == NULL)
     {
     fprintf(stderr, "pcre2test: realloc(%d) failed\n", (int)dbuffer_size);
     exit(1);
     }
   }
 SETCASTPTR(q, dbuffer);  /* Sets q8, q16, or q32, as appropriate. */

 /* Scan the data line, interpreting data escapes, and put the result into a
 buffer of the appropriate width. In UTF mode, input is always UTF-8; otherwise,
 in 16- and 32-bit modes, it can be forced to UTF-8 by the utf8_input modifier.
 */

 while ((c = *p++) != 0)
   {
   int32_t i = 0;
   size_t replen;

   /* ] may mark the end of a replicated sequence */

   if (c == ']' && start_rep != NULL)
     {
     long li;
     char *endptr;

     if (*p++ != '{')
       {
       fprintf(outfile, "** Expected '{' after \\[....]\n");
       return PR_OK;
       }

     li = strtol((const char *)p, &endptr, 10);
     if (S32OVERFLOW(li))
       {
       fprintf(outfile, "** Repeat count too large\n");
       return PR_OK;
       }

     p = (uint8_t *)endptr;
     if (*p++ != '}')
       {
       fprintf(outfile, "** Expected '}' after \\[...]{...\n");
       return PR_OK;
       }

     i = (int32_t)li;
     if (i-- <= 0)
       {
       fprintf(outfile, "** Zero or negative repeat not allowed\n");
       return PR_OK;
       }

     replen = CAST8VAR(q) - start_rep;
     needlen += replen * i;

     if (needlen >= dbuffer_size)
       {
       size_t qoffset = CAST8VAR(q) - dbuffer;
       size_t rep_offset = start_rep - dbuffer;
       while (needlen >= dbuffer_size) dbuffer_size *= 2;
       dbuffer = (uint8_t *)realloc(dbuffer, dbuffer_size);
       if (dbuffer == NULL)
         {
         fprintf(stderr, "pcre2test: realloc(%d) failed\n", (int)dbuffer_size);
         exit(1);
         }
       SETCASTPTR(q, dbuffer + qoffset);
       start_rep = dbuffer + rep_offset;
       }

     while (i-- > 0)
       {
       memcpy(CAST8VAR(q), start_rep, replen);
       SETPLUS(q, replen/code_unit_size);
       }

     start_rep = NULL;
     continue;
     }

   /* Handle a non-escaped character. In non-UTF 32-bit mode with utf8_input
   set, do the fudge for setting the top bit. */

   if (c != '\\' || subject_literal)
     {
     uint32_t topbit = 0;
     if (test_mode == PCRE32_MODE && c == 0xff && *p != 0)
       {
       topbit = 0x80000000;
       c = *p++;
       }
     if ((utf || (pat_patctl.control & CTL_UTF8_INPUT) != 0) &&
       HASUTF8EXTRALEN(c)) { GETUTF8INC(c, p); }
     c |= topbit;
     }

   /* Handle backslash escapes */

   else switch ((c = *p++))
     {
     case '\\': break;
     case 'a': c = CHAR_BEL; break;
     case 'b': c = '\b'; break;
     case 'e': c = CHAR_ESC; break;
     case 'f': c = '\f'; break;
     case 'n': c = '\n'; break;
     case 'r': c = '\r'; break;
     case 't': c = '\t'; break;
     case 'v': c = '\v'; break;

     case '0': case '1': case '2': case '3':
     case '4': case '5': case '6': case '7':
     c -= '0';
     while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
       c = c * 8 + *p++ - '0';
     break;

     case 'o':
     if (*p == '{')
       {
       uint8_t *pt = p;
       c = 0;
       for (pt++; isdigit(*pt) && *pt != '8' && *pt != '9'; pt++)
         {
         if (++i == 12)
           fprintf(outfile, "** Too many octal digits in \\o{...} item; "
                            "using only the first twelve.\n");
         else c = c * 8 + *pt - '0';
         }
       if (*pt == '}') p = pt + 1;
         else fprintf(outfile, "** Missing } after \\o{ (assumed)\n");
       }
     break;

     case 'x':
     if (*p == '{')
       {
       uint8_t *pt = p;
       c = 0;

       /* We used to have "while (isxdigit(*(++pt)))" here, but it fails
       when isxdigit() is a macro that refers to its argument more than
       once. This is banned by the C Standard, but apparently happens in at
       least one MacOS environment. */

       for (pt++; isxdigit(*pt); pt++)
         {
         if (++i == 9)
           fprintf(outfile, "** Too many hex digits in \\x{...} item; "
                            "using only the first eight.\n");
         else c = c * 16 + tolower(*pt) - ((isdigit(*pt))? '0' : 'a' - 10);
         }
       if (*pt == '}')
         {
         p = pt + 1;
         break;
         }
       /* Not correct form for \x{...}; fall through */
       }

     /* \x without {} always defines just one byte in 8-bit mode. This
     allows UTF-8 characters to be constructed byte by byte, and also allows
     invalid UTF-8 sequences to be made. Just copy the byte in UTF-8 mode.
     Otherwise, pass it down as data. */

     c = 0;
     while (i++ < 2 && isxdigit(*p))
       {
       c = c * 16 + tolower(*p) - ((isdigit(*p))? '0' : 'a' - 10);
       p++;
       }
 #if defined SUPPORT_PCRE2_8
     if (utf && (test_mode == PCRE8_MODE))
       {
       *q8++ = c;
       continue;
       }
 #endif
     break;

     case 0:     /* \ followed by EOF allows for an empty line */
     p--;
     continue;

     case '=':   /* \= terminates the data, starts modifiers */
     goto ENDSTRING;

     case '[':   /* \[ introduces a replicated character sequence */
     if (start_rep != NULL)
       {
       fprintf(outfile, "** Nested replication is not supported\n");
       return PR_OK;
       }
     start_rep = CAST8VAR(q);
     continue;

     default:
     if (isalnum(c))
       {
       fprintf(outfile, "** Unrecognized escape sequence \"\\%c\"\n", c);
       return PR_OK;
       }
     }

   /* We now have a character value in c that may be greater than 255.
   In 8-bit mode we convert to UTF-8 if we are in UTF mode. Values greater
   than 127 in UTF mode must have come from \x{...} or octal constructs
   because values from \x.. get this far only in non-UTF mode. */

 #ifdef SUPPORT_PCRE2_8
   if (test_mode == PCRE8_MODE)
     {
     if (utf)
       {
       if (c > 0x7fffffff)
         {
         fprintf(outfile, "** Character \\x{%x} is greater than 0x7fffffff "
           "and so cannot be converted to UTF-8\n", c);
         return PR_OK;
         }
       q8 += ord2utf8(c, q8);
       }
     else
       {
       if (c > 0xffu)
         {
         fprintf(outfile, "** Character \\x{%x} is greater than 255 "
           "and UTF-8 mode is not enabled.\n", c);
         fprintf(outfile, "** Truncation will probably give the wrong "
           "result.\n");
         }
       *q8++ = (uint8_t)c;
       }
     }
 #endif
 #ifdef SUPPORT_PCRE2_16
   if (test_mode == PCRE16_MODE)
     {
     if (utf)
       {
       if (c > 0x10ffffu)
         {
         fprintf(outfile, "** Failed: character \\x{%x} is greater than "
           "0x10ffff and so cannot be converted to UTF-16\n", c);
         return PR_OK;
         }
       else if (c >= 0x10000u)
         {
         c-= 0x10000u;
         *q16++ = 0xD800 | (c >> 10);
         *q16++ = 0xDC00 | (c & 0x3ff);
         }
       else
         *q16++ = c;
       }
     else
       {
       if (c > 0xffffu)
         {
         fprintf(outfile, "** Character \\x{%x} is greater than 0xffff "
           "and UTF-16 mode is not enabled.\n", c);
         fprintf(outfile, "** Truncation will probably give the wrong "
           "result.\n");
         }

       *q16++ = (uint16_t)c;
       }
     }
 #endif
 #ifdef SUPPORT_PCRE2_32
   if (test_mode == PCRE32_MODE)
     {
     *q32++ = c;
     }
 #endif
   }

 ENDSTRING:
 SET(*q, 0);
 len = CASTVAR(uint8_t *, q) - dbuffer;    /* Length in bytes */
 ulen = len/code_unit_size;                /* Length in code units */
 arg_ulen = ulen;                          /* Value to use in match arg */

 /* If the string was terminated by \= we must now interpret modifiers. */

 if (p[-1] != 0 && !decode_modifiers(p, CTX_DAT, NULL, &dat_datctl))
   return PR_OK;

 /* Setting substitute_{skip,fail} implies a substitute callout. */

 if (dat_datctl.substitute_skip != 0 || dat_datctl.substitute_stop != 0)
   dat_datctl.control2 |= CTL2_SUBSTITUTE_CALLOUT;

 /* Check for mutually exclusive modifiers. At present, these are all in the
 first control word. */

 for (k = 0; k < sizeof(exclusive_dat_controls)/sizeof(uint32_t); k++)
   {
   c = dat_datctl.control & exclusive_dat_controls[k];
   if (c != 0 && c != (c & (~c+1)))
     {
     show_controls(c, 0, "** Not allowed together:");
     fprintf(outfile, "\n");
     return PR_OK;
     }
   }

 if (pat_patctl.replacement[0] != 0)
   {
   if ((dat_datctl.control2 & CTL2_SUBSTITUTE_CALLOUT) != 0 &&
       (dat_datctl.control & CTL_NULLCONTEXT) != 0)
     {
     fprintf(outfile, "** Replacement callouts are not supported with null_context.\n");
     return PR_OK;
     }

   if ((dat_datctl.control & CTL_ALLCAPTURES) != 0)
     fprintf(outfile, "** Ignored with replacement text: allcaptures\n");
   }

 /* Warn for modifiers that are ignored for DFA. */

 if ((dat_datctl.control & CTL_DFA) != 0)
   {
   if ((dat_datctl.control & CTL_ALLCAPTURES) != 0)
     fprintf(outfile, "** Ignored after DFA matching: allcaptures\n");
   }

 /* We now have the subject in dbuffer, with len containing the byte length, and
 ulen containing the code unit length, with a copy in arg_ulen for use in match
 function arguments (this gets changed to PCRE2_ZERO_TERMINATED when the
 zero_terminate modifier is present).

 Move the data to the end of the buffer so that a read over the end can be
 caught by valgrind or other means. If we have explicit valgrind support, mark
 the unused start of the buffer unaddressable. If we are using the POSIX
 interface, or testing zero-termination, we must include the terminating zero in
 the usable data. */

 c = code_unit_size * (((pat_patctl.control & CTL_POSIX) +
                        (dat_datctl.control & CTL_ZERO_TERMINATE) != 0)? 1:0);
 pp = memmove(dbuffer + dbuffer_size - len - c, dbuffer, len + c);
 #ifdef SUPPORT_VALGRIND
   VALGRIND_MAKE_MEM_NOACCESS(dbuffer, dbuffer_size - (len + c));
 #endif

 /* Now pp points to the subject string, but if null_subject was specified, set
 it to NULL to test PCRE2's behaviour. */

 if ((dat_datctl.control2 & CTL2_NULL_SUBJECT) != 0) pp = NULL;

 /* POSIX matching is only possible in 8-bit mode, and it does not support
 timing or other fancy features. Some were checked at compile time, but we need
 to check the match-time settings here. */

 #ifdef SUPPORT_PCRE2_8
 if ((pat_patctl.control & CTL_POSIX) != 0)
   {
   int rc;
   int eflags = 0;
   regmatch_t *pmatch = NULL;
   const char *msg = "** Ignored with POSIX interface:";

   if (dat_datctl.cerror[0] != CFORE_UNSET || dat_datctl.cerror[1] != CFORE_UNSET)
     prmsg(&msg, "callout_error");
   if (dat_datctl.cfail[0] != CFORE_UNSET || dat_datctl.cfail[1] != CFORE_UNSET)
     prmsg(&msg, "callout_fail");
   if (dat_datctl.copy_numbers[0] >= 0 || dat_datctl.copy_names[0] != 0)
     prmsg(&msg, "copy");
   if (dat_datctl.get_numbers[0] >= 0 || dat_datctl.get_names[0] != 0)
     prmsg(&msg, "get");
   if (dat_datctl.jitstack != 0) prmsg(&msg, "jitstack");
   if (dat_datctl.offset != 0) prmsg(&msg, "offset");

   if ((dat_datctl.options & ~POSIX_SUPPORTED_MATCH_OPTIONS) != 0)
     {
     fprintf(outfile, "%s", msg);
     show_match_options(dat_datctl.options & ~POSIX_SUPPORTED_MATCH_OPTIONS);
     msg = "";
     }
   if ((dat_datctl.control & ~POSIX_SUPPORTED_MATCH_CONTROLS) != 0 ||
       (dat_datctl.control2 & ~POSIX_SUPPORTED_MATCH_CONTROLS2) != 0)
     {
     show_controls(dat_datctl.control & ~POSIX_SUPPORTED_MATCH_CONTROLS,
                   dat_datctl.control2 & ~POSIX_SUPPORTED_MATCH_CONTROLS2, msg);
     msg = "";
     }

   if (msg[0] == 0) fprintf(outfile, "\n");

   if (dat_datctl.oveccount > 0)
     {
     pmatch = (regmatch_t *)malloc(sizeof(regmatch_t) * dat_datctl.oveccount);
     if (pmatch == NULL)
       {
       fprintf(outfile, "** Failed to get memory for recording matching "
         "information (size set = %du)\n", dat_datctl.oveccount);
       return PR_OK;
       }
     }

   if (dat_datctl.startend[0] != CFORE_UNSET)
     {
     pmatch[0].rm_so = dat_datctl.startend[0];
     pmatch[0].rm_eo = (dat_datctl.startend[1] != 0)?
       dat_datctl.startend[1] : len;
     eflags |= REG_STARTEND;
     }

   if ((dat_datctl.options & PCRE2_NOTBOL) != 0) eflags |= REG_NOTBOL;
   if ((dat_datctl.options & PCRE2_NOTEOL) != 0) eflags |= REG_NOTEOL;
   if ((dat_datctl.options & PCRE2_NOTEMPTY) != 0) eflags |= REG_NOTEMPTY;

   rc = regexec(&preg, (const char *)pp, dat_datctl.oveccount, pmatch, eflags);
   if (rc != 0)
     {
     (void)regerror(rc, &preg, (char *)pbuffer8, pbuffer8_size);
     fprintf(outfile, "No match: POSIX code %d: %s\n", rc, pbuffer8);
     }
   else if ((pat_patctl.control & CTL_POSIX_NOSUB) != 0)
     fprintf(outfile, "Matched with REG_NOSUB\n");
   else if (dat_datctl.oveccount == 0)
     fprintf(outfile, "Matched without capture\n");
   else
     {
     size_t i, j;
     size_t last_printed = (size_t)dat_datctl.oveccount;
     for (i = 0; i < (size_t)dat_datctl.oveccount; i++)
       {
       if (pmatch[i].rm_so >= 0)
         {
         PCRE2_SIZE start = pmatch[i].rm_so;
         PCRE2_SIZE end = pmatch[i].rm_eo;
         for (j = last_printed + 1; j < i; j++)
           fprintf(outfile, "%2d: <unset>\n", (int)j);
         last_printed = i;
         if (start > end)
           {
           start = pmatch[i].rm_eo;
           end = pmatch[i].rm_so;
           fprintf(outfile, "Start of matched string is beyond its end - "
             "displaying from end to start.\n");
           }
         fprintf(outfile, "%2d: ", (int)i);
         PCHARSV(pp, start, end - start, utf, outfile);
         fprintf(outfile, "\n");

         if ((i == 0 && (dat_datctl.control & CTL_AFTERTEXT) != 0) ||
             (dat_datctl.control & CTL_ALLAFTERTEXT) != 0)
           {
           fprintf(outfile, "%2d+ ", (int)i);
           /* Note: don't use the start/end variables here because we want to
           show the text from what is reported as the end. */
           PCHARSV(pp, pmatch[i].rm_eo, len - pmatch[i].rm_eo, utf, outfile);
           fprintf(outfile, "\n"); }
         }
       }
     }
   free(pmatch);
   return PR_OK;
   }
 #endif  /* SUPPORT_PCRE2_8 */

  /* Handle matching via the native interface. Check for consistency of
 modifiers. */

 if (dat_datctl.startend[0] != CFORE_UNSET)
   fprintf(outfile, "** \\=posix_startend ignored for non-POSIX matching\n");

 /* ALLUSEDTEXT is not supported with JIT, but JIT is not used with DFA
 matching, even if the JIT compiler was used. */

 if ((dat_datctl.control & (CTL_ALLUSEDTEXT|CTL_DFA)) == CTL_ALLUSEDTEXT &&
     FLD(compiled_code, executable_jit) != NULL)
   {
   fprintf(outfile, "** Showing all consulted text is not supported by JIT: ignored\n");
   dat_datctl.control &= ~CTL_ALLUSEDTEXT;
   }

 /* Handle passing the subject as zero-terminated. */

 if ((dat_datctl.control & CTL_ZERO_TERMINATE) != 0)
   arg_ulen = PCRE2_ZERO_TERMINATED;

 /* The nullcontext modifier is used to test calling pcre2_[jit_]match() with a
 NULL context. */

 use_dat_context = ((dat_datctl.control & CTL_NULLCONTEXT) != 0)?
   NULL : PTR(dat_context);

 /* Enable display of malloc/free if wanted. We can do this only if either the
 pattern or the subject is processed with a context. */

 show_memory = (dat_datctl.control & CTL_MEMORY) != 0;

 if (show_memory &&
     (pat_patctl.control & dat_datctl.control & CTL_NULLCONTEXT) != 0)
   fprintf(outfile, "** \\=memory requires either a pattern or a subject "
     "context: ignored\n");

 /* Create and assign a JIT stack if requested. */

 if (dat_datctl.jitstack != 0)
   {
   if (dat_datctl.jitstack != jit_stack_size)
     {
     PCRE2_JIT_STACK_FREE(jit_stack);
     PCRE2_JIT_STACK_CREATE(jit_stack, 1, dat_datctl.jitstack * 1024, NULL);
     jit_stack_size = dat_datctl.jitstack;
     }
   PCRE2_JIT_STACK_ASSIGN(dat_context, jit_callback, jit_stack);
   }

 /* Or de-assign */

 else if (jit_stack != NULL)
   {
   PCRE2_JIT_STACK_ASSIGN(dat_context, NULL, NULL);
   PCRE2_JIT_STACK_FREE(jit_stack);
   jit_stack = NULL;
   jit_stack_size = 0;
   }

 /* When no JIT stack is assigned, we must ensure that there is a JIT callback
 if we want to verify that JIT was actually used. */

 if ((pat_patctl.control & CTL_JITVERIFY) != 0 && jit_stack == NULL)
    {
    PCRE2_JIT_STACK_ASSIGN(dat_context, jit_callback, NULL);
    }

 /* Adjust match_data according to size of offsets required. A size of zero
 causes a new match data block to be obtained that exactly fits the pattern. */

 if (dat_datctl.oveccount == 0)
   {
   PCRE2_MATCH_DATA_FREE(match_data);
   PCRE2_MATCH_DATA_CREATE_FROM_PATTERN(match_data, compiled_code,
     general_context);
   PCRE2_GET_OVECTOR_COUNT(max_oveccount, match_data);
   }
 else if (dat_datctl.oveccount <= max_oveccount)
   {
   SETFLD(match_data, oveccount, dat_datctl.oveccount);
   }
 else
   {
   max_oveccount = dat_datctl.oveccount;
   PCRE2_MATCH_DATA_FREE(match_data);
   PCRE2_MATCH_DATA_CREATE(match_data, max_oveccount, general_context);
   }

 if (CASTVAR(void *, match_data) == NULL)
   {
   fprintf(outfile, "** Failed to get memory for recording matching "
     "information (size requested: %d)\n", dat_datctl.oveccount);
   max_oveccount = 0;
   return PR_OK;
   }

 ovector = FLD(match_data, ovector);
 PCRE2_GET_OVECTOR_COUNT(oveccount, match_data);

 /* Replacement processing is ignored for DFA matching. */

 if (dat_datctl.replacement[0] != 0 && (dat_datctl.control & CTL_DFA) != 0)
   {
   fprintf(outfile, "** Ignored for DFA matching: replace\n");
   dat_datctl.replacement[0] = 0;
   }

 /* If a replacement string is provided, call pcre2_substitute() instead of one
 of the matching functions. First we have to convert the replacement string to
 the appropriate width. */

 if (dat_datctl.replacement[0] != 0)
   {
   int rc;
   uint8_t *pr;
   uint8_t rbuffer[REPLACE_BUFFSIZE];
   uint8_t nbuffer[REPLACE_BUFFSIZE];
   uint8_t *rbptr;
   uint32_t xoptions;
   uint32_t emoption;  /* External match option */
   PCRE2_SIZE j, rlen, nsize, erroroffset;
   BOOL badutf = FALSE;

 #ifdef SUPPORT_PCRE2_8
   uint8_t *r8 = NULL;
 #endif
 #ifdef SUPPORT_PCRE2_16
   uint16_t *r16 = NULL;
 #endif
 #ifdef SUPPORT_PCRE2_32
   uint32_t *r32 = NULL;
 #endif

   /* Fill the ovector with junk to detect elements that do not get set
   when they should be (relevant only when "allvector" is specified). */

   for (j = 0; j < 2*oveccount; j++) ovector[j] = JUNK_OFFSET;

   if (timeitm)
     fprintf(outfile, "** Timing is not supported with replace: ignored\n");

   if ((dat_datctl.control & CTL_ALTGLOBAL) != 0)
     fprintf(outfile, "** Altglobal is not supported with replace: ignored\n");

   /* Check for a test that does substitution after an initial external match.
   If this is set, we run the external match, but leave the interpretation of
   its output to pcre2_substitute(). */

   emoption = ((dat_datctl.control2 & CTL2_SUBSTITUTE_MATCHED) == 0)? 0 :
     PCRE2_SUBSTITUTE_MATCHED;

   if (emoption != 0)
     {
     PCRE2_MATCH(rc, compiled_code, pp, arg_ulen, dat_datctl.offset,
       dat_datctl.options, match_data, use_dat_context);
     }

   xoptions = emoption |
              (((dat_datctl.control & CTL_GLOBAL) == 0)? 0 :
                 PCRE2_SUBSTITUTE_GLOBAL) |
              (((dat_datctl.control2 & CTL2_SUBSTITUTE_EXTENDED) == 0)? 0 :
                 PCRE2_SUBSTITUTE_EXTENDED) |
              (((dat_datctl.control2 & CTL2_SUBSTITUTE_LITERAL) == 0)? 0 :
                 PCRE2_SUBSTITUTE_LITERAL) |
              (((dat_datctl.control2 & CTL2_SUBSTITUTE_OVERFLOW_LENGTH) == 0)? 0 :
                 PCRE2_SUBSTITUTE_OVERFLOW_LENGTH) |
              (((dat_datctl.control2 & CTL2_SUBSTITUTE_REPLACEMENT_ONLY) == 0)? 0 :
                 PCRE2_SUBSTITUTE_REPLACEMENT_ONLY) |
              (((dat_datctl.control2 & CTL2_SUBSTITUTE_UNKNOWN_UNSET) == 0)? 0 :
                 PCRE2_SUBSTITUTE_UNKNOWN_UNSET) |
              (((dat_datctl.control2 & CTL2_SUBSTITUTE_UNSET_EMPTY) == 0)? 0 :
                 PCRE2_SUBSTITUTE_UNSET_EMPTY);

   SETCASTPTR(r, rbuffer);  /* Sets r8, r16, or r32, as appropriate. */
   pr = dat_datctl.replacement;

   /* If the replacement starts with '[<number>]' we interpret that as length
   value for the replacement buffer. */

   nsize = REPLACE_BUFFSIZE/code_unit_size;
   if (*pr == '[')
     {
     PCRE2_SIZE n = 0;
     while ((c = *(++pr)) >= CHAR_0 && c <= CHAR_9) n = n * 10 + c - CHAR_0;
     if (*pr++ != ']')
       {
       fprintf(outfile, "Bad buffer size in replacement string\n");
       return PR_OK;
       }
     if (n > nsize)
       {
       fprintf(outfile, "Replacement buffer setting (%" SIZ_FORM ") is too "
         "large (max %" SIZ_FORM ")\n", n, nsize);
       return PR_OK;
       }
     nsize = n;
     }

   /* Now copy the replacement string to a buffer of the appropriate width. No
   escape processing is done for replacements. In UTF mode, check for an invalid
   UTF-8 input string, and if it is invalid, just copy its code units without
   UTF interpretation. This provides a means of checking that an invalid string
   is detected. Otherwise, UTF-8 can be used to include wide characters in a
   replacement. */

   if (utf) badutf = valid_utf(pr, strlen((const char *)pr), &erroroffset);

   /* Not UTF or invalid UTF-8: just copy the code units. */

   if (!utf || badutf)
     {
     while ((c = *pr++) != 0)
       {
 #ifdef SUPPORT_PCRE2_8
       if (test_mode == PCRE8_MODE) *r8++ = c;
 #endif
 #ifdef SUPPORT_PCRE2_16
       if (test_mode == PCRE16_MODE) *r16++ = c;
 #endif
 #ifdef SUPPORT_PCRE2_32
       if (test_mode == PCRE32_MODE) *r32++ = c;
 #endif
       }
     }

   /* Valid UTF-8 replacement string */

   else while ((c = *pr++) != 0)
     {
     if (HASUTF8EXTRALEN(c)) { GETUTF8INC(c, pr); }

 #ifdef SUPPORT_PCRE2_8
     if (test_mode == PCRE8_MODE) r8 += ord2utf8(c, r8);
 #endif

 #ifdef SUPPORT_PCRE2_16
     if (test_mode == PCRE16_MODE)
       {
       if (c >= 0x10000u)
         {
         c-= 0x10000u;
         *r16++ = 0xD800 | (c >> 10);
         *r16++ = 0xDC00 | (c & 0x3ff);
         }
       else *r16++ = c;
       }
 #endif

 #ifdef SUPPORT_PCRE2_32
     if (test_mode == PCRE32_MODE) *r32++ = c;
 #endif
     }

   SET(*r, 0);
   if ((dat_datctl.control & CTL_ZERO_TERMINATE) != 0)
     rlen = PCRE2_ZERO_TERMINATED;
   else
     rlen = (CASTVAR(uint8_t *, r) - rbuffer)/code_unit_size;

   if ((dat_datctl.control2 & CTL2_SUBSTITUTE_CALLOUT) != 0)
     {
     PCRE2_SET_SUBSTITUTE_CALLOUT(dat_context, substitute_callout_function, NULL);
     }
   else
     {
     PCRE2_SET_SUBSTITUTE_CALLOUT(dat_context, NULL, NULL);  /* No callout */
     }

   /* There is a special option to set the replacement to NULL in order to test
   that case. */

   rbptr = ((dat_datctl.control2 & CTL2_NULL_REPLACEMENT) == 0)? rbuffer : NULL;

   PCRE2_SUBSTITUTE(rc, compiled_code, pp, arg_ulen, dat_datctl.offset,
     dat_datctl.options|xoptions, match_data, use_dat_context,
     rbptr, rlen, nbuffer, &nsize);

   if (rc < 0)
     {
     fprintf(outfile, "Failed: error %d", rc);
     if (rc != PCRE2_ERROR_NOMEMORY && nsize != PCRE2_UNSET)
       fprintf(outfile, " at offset %ld in replacement", (long int)nsize);
     fprintf(outfile, ": ");
     if (!print_error_message(rc, "", "")) return PR_ABEND;
     if (rc == PCRE2_ERROR_NOMEMORY &&
         (xoptions & PCRE2_SUBSTITUTE_OVERFLOW_LENGTH) != 0)
       fprintf(outfile, ": %ld code units are needed", (long int)nsize);
     }
   else
     {
     fprintf(outfile, "%2d: ", rc);
     PCHARSV(nbuffer, 0, nsize, utf, outfile);
     }

   fprintf(outfile, "\n");
   show_memory = FALSE;

   /* Show final ovector contents if requested. */

   if ((dat_datctl.control2 & CTL2_ALLVECTOR) != 0)
     show_ovector(ovector, oveccount);

   return PR_OK;
   }   /* End of substitution handling */

 /* When a replacement string is not provided, run a loop for global matching
 with one of the basic matching functions. For altglobal (or first time round
 the loop), set an "unset" value for the previous match info. */

 ovecsave[0] = ovecsave[1] = ovecsave[2] = PCRE2_UNSET;

 for (gmatched = 0;; gmatched++)
   {
   PCRE2_SIZE j;
   int capcount;

   /* Fill the ovector with junk to detect elements that do not get set
   when they should be. */

   for (j = 0; j < 2*oveccount; j++) ovector[j] = JUNK_OFFSET;

   /* When matching is via pcre2_match(), we will detect the use of JIT via the
   stack callback function. */

   jit_was_used = (pat_patctl.control & CTL_JITFAST) != 0;

   /* Do timing if required. */

   if (timeitm > 0)
     {
     int i;
     clock_t start_time, time_taken;

     if ((dat_datctl.control & CTL_DFA) != 0)
       {
       if ((dat_datctl.options & PCRE2_DFA_RESTART) != 0)
         {
         fprintf(outfile, "Timing DFA restarts is not supported\n");
         return PR_OK;
         }
       if (dfa_workspace == NULL)
         dfa_workspace = (int *)malloc(DFA_WS_DIMENSION*sizeof(int));
       start_time = clock();
       for (i = 0; i < timeitm; i++)
         {
         PCRE2_DFA_MATCH(capcount, compiled_code, pp, arg_ulen,
           dat_datctl.offset, dat_datctl.options | g_notempty, match_data,
           use_dat_context, dfa_workspace, DFA_WS_DIMENSION);
         }
       }

     else if ((pat_patctl.control & CTL_JITFAST) != 0)
       {
       start_time = clock();
       for (i = 0; i < timeitm; i++)
         {
         PCRE2_JIT_MATCH(capcount, compiled_code, pp, arg_ulen,
           dat_datctl.offset, dat_datctl.options | g_notempty, match_data,
           use_dat_context);
         }
       }

     else
       {
       start_time = clock();
       for (i = 0; i < timeitm; i++)
         {
         PCRE2_MATCH(capcount, compiled_code, pp, arg_ulen,
           dat_datctl.offset, dat_datctl.options | g_notempty, match_data,
           use_dat_context);
         }
       }
     total_match_time += (time_taken = clock() - start_time);
     fprintf(outfile, "Match time %.4f milliseconds\n",
       (((double)time_taken * 1000.0) / (double)timeitm) /
         (double)CLOCKS_PER_SEC);
     }

   /* Find the heap, match and depth limits if requested. The depth and heap
   limits are not relevant for JIT. The return from check_match_limit() is the
   return from the final call to pcre2_match() or pcre2_dfa_match(). */

   if ((dat_datctl.control & (CTL_FINDLIMITS|CTL_FINDLIMITS_NOHEAP)) != 0)
     {
     capcount = 0;  /* This stops compiler warnings */

     if ((dat_datctl.control & CTL_FINDLIMITS_NOHEAP) == 0 &&
         (FLD(compiled_code, executable_jit) == NULL ||
           (dat_datctl.options & PCRE2_NO_JIT) != 0))
       {
       (void)check_match_limit(pp, arg_ulen, PCRE2_ERROR_HEAPLIMIT, "heap");
       }

     capcount = check_match_limit(pp, arg_ulen, PCRE2_ERROR_MATCHLIMIT,
       "match");

     if (FLD(compiled_code, executable_jit) == NULL ||
         (dat_datctl.options & PCRE2_NO_JIT) != 0 ||
         (dat_datctl.control & CTL_DFA) != 0)
       {
       capcount = check_match_limit(pp, arg_ulen, PCRE2_ERROR_DEPTHLIMIT,
         "depth");
       }

     if (capcount == 0)
       {
       fprintf(outfile, "Matched, but offsets vector is too small to show all matches\n");
       capcount = dat_datctl.oveccount;
       }
     }

   /* Otherwise just run a single match, setting up a callout if required (the
   default). There is a copy of the pattern in pbuffer8 for use by callouts. */

   else
     {
     if ((dat_datctl.control & CTL_CALLOUT_NONE) == 0)
       {
       PCRE2_SET_CALLOUT(dat_context, callout_function,
         (void *)(&dat_datctl.callout_data));
       first_callout = TRUE;
       last_callout_mark = NULL;
       callout_count = 0;
       }
     else
       {
       PCRE2_SET_CALLOUT(dat_context, NULL, NULL);  /* No callout */
       }

     /* Run a single DFA or NFA match. */

     if ((dat_datctl.control & CTL_DFA) != 0)
       {
       if (dfa_workspace == NULL)
         dfa_workspace = (int *)malloc(DFA_WS_DIMENSION*sizeof(int));
       if (dfa_matched++ == 0)
         dfa_workspace[0] = -1;  /* To catch bad restart */
       PCRE2_DFA_MATCH(capcount, compiled_code, pp, arg_ulen,
         dat_datctl.offset, dat_datctl.options | g_notempty, match_data,
         use_dat_context, dfa_workspace, DFA_WS_DIMENSION);
       if (capcount == 0)
         {
         fprintf(outfile, "Matched, but offsets vector is too small to show all matches\n");
         capcount = dat_datctl.oveccount;
         }
       }
     else
       {
       if ((pat_patctl.control & CTL_JITFAST) != 0)
         PCRE2_JIT_MATCH(capcount, compiled_code, pp, arg_ulen, dat_datctl.offset,
           dat_datctl.options | g_notempty, match_data, use_dat_context);
       else
         PCRE2_MATCH(capcount, compiled_code, pp, arg_ulen, dat_datctl.offset,
           dat_datctl.options | g_notempty, match_data, use_dat_context);
       if (capcount == 0)
         {
         fprintf(outfile, "Matched, but too many substrings\n");
         capcount = dat_datctl.oveccount;
         }
       }
     }

   /* The result of the match is now in capcount. First handle a successful
   match. If pp was forced to be NULL (to test NULL handling) it will have been
   treated as an empty string if the length was zero. So re-create that for
   outputting. */

   if (capcount >= 0)
     {
     int i;

     if (pp == NULL) pp = (uint8_t *)"";

     if (capcount > (int)oveccount)   /* Check for lunatic return value */
       {
       fprintf(outfile,
         "** PCRE2 error: returned count %d is too big for ovector count %d\n",
         capcount, oveccount);
       capcount = oveccount;
       if ((dat_datctl.control & CTL_ANYGLOB) != 0)
         {
         fprintf(outfile, "** Global loop abandoned\n");
         dat_datctl.control &= ~CTL_ANYGLOB;        /* Break g/G loop */
         }
       }

     /* If PCRE2_COPY_MATCHED_SUBJECT was set, check that things are as they
     should be, but not for fast JIT, where it isn't supported. */

     if ((dat_datctl.options & PCRE2_COPY_MATCHED_SUBJECT) != 0 &&
         (pat_patctl.control & CTL_JITFAST) == 0)
       {
       if ((FLD(match_data, flags) & PCRE2_MD_COPIED_SUBJECT) == 0)
         fprintf(outfile,
           "** PCRE2 error: flag not set after copy_matched_subject\n");

       if (CASTFLD(void *, match_data, subject) == pp)
         fprintf(outfile,
           "** PCRE2 error: copy_matched_subject has not copied\n");

       if (memcmp(CASTFLD(void *, match_data, subject), pp, ulen) != 0)
         fprintf(outfile,
           "** PCRE2 error: copy_matched_subject mismatch\n");
       }

     /* If this is not the first time round a global loop, check that the
     returned string has changed. If it has not, check for an empty string match
     at different starting offset from the previous match. This is a failed test
     retry for null-matching patterns that don't match at their starting offset,
     for example /(?<=\G.)/. A repeated match at the same point is not such a
     pattern, and must be discarded, and we then proceed to seek a non-null
     match at the current point. For any other repeated match, there is a bug
     somewhere and we must break the loop because it will go on for ever. We
     know that there are always at least two elements in the ovector. */

     if (gmatched > 0 && ovecsave[0] == ovector[0] && ovecsave[1] == ovector[1])
       {
       if (ovector[0] == ovector[1] && ovecsave[2] != dat_datctl.offset)
         {
         g_notempty = PCRE2_NOTEMPTY_ATSTART | PCRE2_ANCHORED;
         ovecsave[2] = dat_datctl.offset;
         continue;    /* Back to the top of the loop */
         }
       fprintf(outfile,
         "** PCRE2 error: global repeat returned the same string as previous\n");
       fprintf(outfile, "** Global loop abandoned\n");
       dat_datctl.control &= ~CTL_ANYGLOB;        /* Break g/G loop */
       }

     /* "allcaptures" requests showing of all captures in the pattern, to check
     unset ones at the end. It may be set on the pattern or the data. Implement
     by setting capcount to the maximum. This is not relevant for DFA matching,
     so ignore it (warning given above). */

     if ((dat_datctl.control & (CTL_ALLCAPTURES|CTL_DFA)) == CTL_ALLCAPTURES)
       {
       capcount = maxcapcount + 1;   /* Allow for full match */
       if (capcount > (int)oveccount) capcount = oveccount;
       }

     /* "allvector" request showing the entire ovector. */

     if ((dat_datctl.control2 & CTL2_ALLVECTOR) != 0) capcount = oveccount;

     /* Output the captured substrings. Note that, for the matched string,
     the use of \K in an assertion can make the start later than the end. */

     for (i = 0; i < 2*capcount; i += 2)
       {
       PCRE2_SIZE lleft, lmiddle, lright;
       PCRE2_SIZE start = ovector[i];
       PCRE2_SIZE end = ovector[i+1];

       if (start > end)
         {
         start = ovector[i+1];
         end = ovector[i];
         fprintf(outfile, "Start of matched string is beyond its end - "
           "displaying from end to start.\n");
         }

       fprintf(outfile, "%2d: ", i/2);

       /* Check for an unset group */

       if (start == PCRE2_UNSET && end == PCRE2_UNSET)
         {
         fprintf(outfile, "<unset>\n");
         continue;
         }

       /* Check for silly offsets, in particular, values that have not been
       set when they should have been. However, if we are past the end of the
       captures for this pattern ("allvector" causes this), or if we are DFA
       matching, it isn't an error if the entry is unchanged. */

       if (start > ulen || end > ulen)
         {
         if (((dat_datctl.control & CTL_DFA) != 0 ||
               i >= (int)(2*maxcapcount + 2)) &&
             start == JUNK_OFFSET && end == JUNK_OFFSET)
           fprintf(outfile, "<unchanged>\n");
         else
           fprintf(outfile, "ERROR: bad value(s) for offset(s): 0x%lx 0x%lx\n",
             (unsigned long int)start, (unsigned long int)end);
         continue;
         }

       /* When JIT is not being used, ALLUSEDTEXT may be set. (It if is set with
       JIT, it is disabled above, with a comment.) When the match is done by the
       interpreter, leftchar and rightchar are available, and if ALLUSEDTEXT is
       set, and if the leftmost consulted character is before the start of the
       match or the rightmost consulted character is past the end of the match,
       we want to show all consulted characters for the main matched string, and
       indicate which were lookarounds. */

       if (i == 0)
         {
         BOOL showallused;
         PCRE2_SIZE leftchar, rightchar;

         if ((dat_datctl.control & CTL_ALLUSEDTEXT) != 0)
           {
           leftchar = FLD(match_data, leftchar);
           rightchar = FLD(match_data, rightchar);
           showallused = i == 0 && (leftchar < start || rightchar > end);
           }
         else showallused = FALSE;

         if (showallused)
           {
           PCHARS(lleft, pp, leftchar, start - leftchar, utf, outfile);
           PCHARS(lmiddle, pp, start, end - start, utf, outfile);
           PCHARS(lright, pp, end, rightchar - end, utf, outfile);
           if ((pat_patctl.control & CTL_JITVERIFY) != 0 && jit_was_used)
             fprintf(outfile, " (JIT)");
           fprintf(outfile, "\n    ");
           for (j = 0; j < lleft; j++) fprintf(outfile, "<");
           for (j = 0; j < lmiddle; j++) fprintf(outfile, " ");
           for (j = 0; j < lright; j++) fprintf(outfile, ">");
           }

         /* When a pattern contains \K, the start of match position may be
         different to the start of the matched string. When this is the case,
         show it when requested. */

         else if ((dat_datctl.control & CTL_STARTCHAR) != 0)
           {
           PCRE2_SIZE startchar;
           PCRE2_GET_STARTCHAR(startchar, match_data);
           PCHARS(lleft, pp, startchar, start - startchar, utf, outfile);
           PCHARSV(pp, start, end - start, utf, outfile);
           if ((pat_patctl.control & CTL_JITVERIFY) != 0 && jit_was_used)
             fprintf(outfile, " (JIT)");
           if (startchar != start)
             {
             fprintf(outfile, "\n    ");
             for (j = 0; j < lleft; j++) fprintf(outfile, "^");
             }
           }

         /* Otherwise, just show the matched string. */

         else
           {
           PCHARSV(pp, start, end - start, utf, outfile);
           if ((pat_patctl.control & CTL_JITVERIFY) != 0 && jit_was_used)
             fprintf(outfile, " (JIT)");
           }
         }

       /* Not the main matched string. Just show it unadorned. */

       else
         {
         PCHARSV(pp, start, end - start, utf, outfile);
         }

       fprintf(outfile, "\n");

       /* Note: don't use the start/end variables here because we want to
       show the text from what is reported as the end. */

       if ((dat_datctl.control & CTL_ALLAFTERTEXT) != 0 ||
           (i == 0 && (dat_datctl.control & CTL_AFTERTEXT) != 0))
         {
         fprintf(outfile, "%2d+ ", i/2);
         PCHARSV(pp, ovector[i+1], ulen - ovector[i+1], utf, outfile);
         fprintf(outfile, "\n");
         }
       }

     /* Output (*MARK) data if requested */

     if ((dat_datctl.control & CTL_MARK) != 0 &&
          TESTFLD(match_data, mark, !=, NULL))
       {
       fprintf(outfile, "MK: ");
       PCHARSV(CASTFLD(void *, match_data, mark), -1, -1, utf, outfile);
       fprintf(outfile, "\n");
       }

     /* Process copy/get strings */

     if (!copy_and_get(utf, capcount)) return PR_ABEND;

     }    /* End of handling a successful match */

   /* There was a partial match. The value of ovector[0] is the bumpalong point,
   that is, startchar, not any \K point that might have been passed. When JIT is
   not in use, "allusedtext" may be set, in which case we indicate the leftmost
   consulted character. */

   else if (capcount == PCRE2_ERROR_PARTIAL)
     {
     PCRE2_SIZE leftchar;
     int backlength;
     int rubriclength = 0;

     if ((dat_datctl.control & CTL_ALLUSEDTEXT) != 0)
       {
       leftchar = FLD(match_data, leftchar);
       }
     else leftchar = ovector[0];

     fprintf(outfile, "Partial match");
     if ((dat_datctl.control & CTL_MARK) != 0 &&
          TESTFLD(match_data, mark, !=, NULL))
       {
       fprintf(outfile, ", mark=");
       PCHARS(rubriclength, CASTFLD(void *, match_data, mark), -1, -1, utf,
         outfile);
       rubriclength += 7;
       }
     fprintf(outfile, ": ");
     rubriclength += 15;

     PCHARS(backlength, pp, leftchar, ovector[0] - leftchar, utf, outfile);
     PCHARSV(pp, ovector[0], ulen - ovector[0], utf, outfile);

     if ((pat_patctl.control & CTL_JITVERIFY) != 0 && jit_was_used)
       fprintf(outfile, " (JIT)");
     fprintf(outfile, "\n");

     if (backlength != 0)
       {
       int i;
       for (i = 0; i < rubriclength; i++) fprintf(outfile, " ");
       for (i = 0; i < backlength; i++) fprintf(outfile, "<");
       fprintf(outfile, "\n");
       }

     if (ulen != ovector[1])
       fprintf(outfile, "** ovector[1] is not equal to the subject length: "
         "%ld != %ld\n", (unsigned long int)ovector[1], (unsigned long int)ulen);

     /* Process copy/get strings */

     if (!copy_and_get(utf, 1)) return PR_ABEND;

     /* "allvector" outputs the entire vector */

     if ((dat_datctl.control2 & CTL2_ALLVECTOR) != 0)
       show_ovector(ovector, oveccount);

     break;  /* Out of the /g loop */
     }       /* End of handling partial match */

   /* Failed to match. If this is a /g or /G loop, we might previously have
   set g_notempty (to PCRE2_NOTEMPTY_ATSTART|PCRE2_ANCHORED) after a null match.
   If that is the case, this is not necessarily the end. We want to advance the
   start offset, and continue. We won't be at the end of the string - that was
   checked before setting g_notempty. We achieve the effect by pretending that a
   single character was matched.

   Complication arises in the case when the newline convention is "any", "crlf",
   or "anycrlf". If the previous match was at the end of a line terminated by
   CRLF, an advance of one character just passes the CR, whereas we should
   prefer the longer newline sequence, as does the code in pcre2_match().

   Otherwise, in the case of UTF-8 or UTF-16 matching, the advance must be one
   character, not one byte. */

   else if (g_notempty != 0)   /* There was a previous null match */
     {
     uint16_t nl = FLD(compiled_code, newline_convention);
     PCRE2_SIZE start_offset = dat_datctl.offset;    /* Where the match was */
     PCRE2_SIZE end_offset = start_offset + 1;

     if ((nl == PCRE2_NEWLINE_CRLF || nl == PCRE2_NEWLINE_ANY ||
          nl == PCRE2_NEWLINE_ANYCRLF) &&
         start_offset < ulen - 1 &&
         CODE_UNIT(pp, start_offset) == '\r' &&
         CODE_UNIT(pp, end_offset) == '\n')
       end_offset++;

     else if (utf && test_mode != PCRE32_MODE)
       {
       if (test_mode == PCRE8_MODE)
         {
         for (; end_offset < ulen; end_offset++)
           if ((((PCRE2_SPTR8)pp)[end_offset] & 0xc0) != 0x80) break;
         }
       else  /* 16-bit mode */
         {
         for (; end_offset < ulen; end_offset++)
           if ((((PCRE2_SPTR16)pp)[end_offset] & 0xfc00) != 0xdc00) break;
         }
       }

     SETFLDVEC(match_data, ovector, 0, start_offset);
     SETFLDVEC(match_data, ovector, 1, end_offset);
     }  /* End of handling null match in a global loop */

   /* A "normal" match failure. There will be a negative error number in
   capcount. */

   else
     {
     switch(capcount)
       {
       case PCRE2_ERROR_NOMATCH:
       if (gmatched == 0)
         {
         fprintf(outfile, "No match");
         if ((dat_datctl.control & CTL_MARK) != 0 &&
              TESTFLD(match_data, mark, !=, NULL))
           {
           fprintf(outfile, ", mark = ");
           PCHARSV(CASTFLD(void *, match_data, mark), -1, -1, utf, outfile);
           }
         if ((pat_patctl.control & CTL_JITVERIFY) != 0 && jit_was_used)
           fprintf(outfile, " (JIT)");
         fprintf(outfile, "\n");

         /* "allvector" outputs the entire vector */

         if ((dat_datctl.control2 & CTL2_ALLVECTOR) != 0)
           show_ovector(ovector, oveccount);
         }
       break;

       case PCRE2_ERROR_BADUTFOFFSET:
       fprintf(outfile, "Error %d (bad UTF-%d offset)\n", capcount, test_mode);
       break;

       default:
       fprintf(outfile, "Failed: error %d: ", capcount);
       if (!print_error_message(capcount, "", "")) return PR_ABEND;
       if (capcount <= PCRE2_ERROR_UTF8_ERR1 &&
           capcount >= PCRE2_ERROR_UTF32_ERR2)
         {
         PCRE2_SIZE startchar;
         PCRE2_GET_STARTCHAR(startchar, match_data);
         fprintf(outfile, " at offset %" SIZ_FORM, startchar);
         }
       fprintf(outfile, "\n");
       break;
       }

     break;  /* Out of the /g loop */
     }       /* End of failed match handling */

   /* Control reaches here in two circumstances: (a) after a match, and (b)
   after a non-match that immediately followed a match on an empty string when
   doing a global search. Such a match is done with PCRE2_NOTEMPTY_ATSTART and
   PCRE2_ANCHORED set in g_notempty. The code above turns it into a fake match
   of one character. So effectively we get here only after a match. If we
   are not doing a global search, we are done. */

   if ((dat_datctl.control & CTL_ANYGLOB) == 0) break; else
     {
     PCRE2_SIZE match_offset = FLD(match_data, ovector)[0];
     PCRE2_SIZE end_offset = FLD(match_data, ovector)[1];

     /* We must now set up for the next iteration of a global search. If we have
     matched an empty string, first check to see if we are at the end of the
     subject. If so, the loop is over. Otherwise, mimic what Perl's /g option
     does. Set PCRE2_NOTEMPTY_ATSTART and PCRE2_ANCHORED and try the match again
     at the same point. If this fails it will be picked up above, where a fake
     match is set up so that at this point we advance to the next character.

     However, in order to cope with patterns that never match at their starting
     offset (e.g. /(?<=\G.)/) we don't do this when the match offset is greater
     than the starting offset. This means there will be a retry with the
     starting offset at the match offset. If this returns the same match again,
     it is picked up above and ignored, and the special action is then taken. */

     if (match_offset == end_offset)
       {
       if (end_offset == ulen) break;           /* End of subject */
       if (match_offset <= dat_datctl.offset)
         g_notempty = PCRE2_NOTEMPTY_ATSTART | PCRE2_ANCHORED;
       }

     /* However, even after matching a non-empty string, there is still one
     tricky case. If a pattern contains \K within a lookbehind assertion at the
     start, the end of the matched string can be at the offset where the match
     started. In the case of a normal /g iteration without special action, this
     leads to a loop that keeps on returning the same substring. The loop would
     be caught above, but we really want to move on to the next match. */

     else
       {
       g_notempty = 0;   /* Set for a "normal" repeat */
       if ((dat_datctl.control & CTL_GLOBAL) != 0)
         {
         PCRE2_SIZE startchar;
         PCRE2_GET_STARTCHAR(startchar, match_data);
         if (end_offset <= startchar)
           {
           if (startchar >= ulen) break;       /* End of subject */
           end_offset = startchar + 1;
           if (utf && test_mode != PCRE32_MODE)
             {
             if (test_mode == PCRE8_MODE)
               {
               for (; end_offset < ulen; end_offset++)
                 if ((((PCRE2_SPTR8)pp)[end_offset] & 0xc0) != 0x80) break;
               }
             else  /* 16-bit mode */
               {
               for (; end_offset < ulen; end_offset++)
                 if ((((PCRE2_SPTR16)pp)[end_offset] & 0xfc00) != 0xdc00) break;
               }
             }
           }
         }
       }

     /* For a normal global (/g) iteration, save the current ovector[0,1] and
     the starting offset so that we can check that they do change each time.
     Otherwise a matching bug that returns the same string causes an infinite
     loop. It has happened! Then update the start offset, leaving other
     parameters alone. */

     if ((dat_datctl.control & CTL_GLOBAL) != 0)
       {
       ovecsave[0] = ovector[0];
       ovecsave[1] = ovector[1];
       ovecsave[2] = dat_datctl.offset;
       dat_datctl.offset = end_offset;
       }

     /* For altglobal, just update the pointer and length. */

     else
       {
       pp += end_offset * code_unit_size;
       len -= end_offset * code_unit_size;
       ulen -= end_offset;
       if (arg_ulen != PCRE2_ZERO_TERMINATED) arg_ulen -= end_offset;
       }
     }
   }  /* End of global loop */

 show_memory = FALSE;
 return PR_OK;
 }


 /*************************************************
 *               Print PCRE2 version              *
 *************************************************/

 static void
 print_version(FILE *f)
 {
 VERSION_TYPE *vp;
 fprintf(f, "PCRE2 version ");
 for (vp = version; *vp != 0; vp++) fprintf(f, "%c", *vp);
 fprintf(f, "\n");
 }


 /*************************************************
 *               Print Unicode version            *
 *************************************************/

 static void
 print_unicode_version(FILE *f)
 {
 VERSION_TYPE *vp;
 fprintf(f, "Unicode version ");
 for (vp = uversion; *vp != 0; vp++) fprintf(f, "%c", *vp);
 }


 /*************************************************
 *               Print JIT target                 *
 *************************************************/

 static void
 print_jit_target(FILE *f)
 {
 VERSION_TYPE *vp;
 for (vp = jittarget; *vp != 0; vp++) fprintf(f, "%c", *vp);
 }


 /*************************************************
 *       Print newline configuration              *
 *************************************************/

 /* Output is always to stdout.

 Arguments:
   rc         the return code from PCRE2_CONFIG_NEWLINE
   isc        TRUE if called from "-C newline"
 Returns:     nothing
 */

 static void
 print_newline_config(uint32_t optval, BOOL isc)
 {
 if (!isc) printf("  Default newline sequence is ");
 if (optval < sizeof(newlines)/sizeof(char *))
   printf("%s\n", newlines[optval]);
 else
   printf("a non-standard value: %d\n", optval);
 }


 /*************************************************
 *             Usage function                     *
 *************************************************/

 static void
 usage(void)
 {
 printf("Usage:     pcre2test [options] [<input file> [<output file>]]\n\n");
 printf("Input and output default to stdin and stdout.\n");
 #if defined(SUPPORT_LIBREADLINE) || defined(SUPPORT_LIBEDIT)
 printf("If input is a terminal, readline() is used to read from it.\n");
 #else
 printf("This version of pcre2test is not linked with readline().\n");
 #endif
 printf("\nOptions:\n");
 #ifdef SUPPORT_PCRE2_8
 printf("  -8            use the 8-bit library\n");
 #endif
 #ifdef SUPPORT_PCRE2_16
 printf("  -16           use the 16-bit library\n");
 #endif
 #ifdef SUPPORT_PCRE2_32
 printf("  -32           use the 32-bit library\n");
 #endif
 printf("  -ac           set default pattern modifier PCRE2_AUTO_CALLOUT\n");
 printf("  -AC           as -ac, but also set subject 'callout_extra' modifier\n");
 printf("  -b            set default pattern modifier 'fullbincode'\n");
 printf("  -C            show PCRE2 compile-time options and exit\n");
 printf("  -C arg        show a specific compile-time option and exit with its\n");
 printf("                  value if numeric (else 0). The arg can be:\n");
 printf("     backslash-C    use of \\C is enabled [0, 1]\n");
 printf("     bsr            \\R type [ANYCRLF, ANY]\n");
 printf("     ebcdic         compiled for EBCDIC character code [0,1]\n");
 printf("     ebcdic-nl      NL code if compiled for EBCDIC\n");
 printf("     jit            just-in-time compiler supported [0, 1]\n");
 printf("     linksize       internal link size [2, 3, 4]\n");
 printf("     newline        newline type [CR, LF, CRLF, ANYCRLF, ANY, NUL]\n");
 printf("     pcre2-8        8 bit library support enabled [0, 1]\n");
 printf("     pcre2-16       16 bit library support enabled [0, 1]\n");
 printf("     pcre2-32       32 bit library support enabled [0, 1]\n");
 printf("     unicode        Unicode and UTF support enabled [0, 1]\n");
 printf("  -d            set default pattern modifier 'debug'\n");
 printf("  -dfa          set default subject modifier 'dfa'\n");
 printf("  -error <n,m,..>  show messages for error numbers, then exit\n");
 printf("  -help         show usage information\n");
 printf("  -i            set default pattern modifier 'info'\n");
 printf("  -jit          set default pattern modifier 'jit'\n");
 printf("  -jitfast      set default pattern modifier 'jitfast'\n");
 printf("  -jitverify    set default pattern modifier 'jitverify'\n");
 printf("  -LM           list pattern and subject modifiers, then exit\n");
 printf("  -LP           list non-script properties, then exit\n");
 printf("  -LS           list supported scripts, then exit\n");
 printf("  -q            quiet: do not output PCRE2 version number at start\n");
 printf("  -pattern <s>  set default pattern modifier fields\n");
 printf("  -subject <s>  set default subject modifier fields\n");
 printf("  -S <n>        set stack size to <n> mebibytes\n");
 printf("  -t [<n>]      time compilation and execution, repeating <n> times\n");
 printf("  -tm [<n>]     time execution (matching) only, repeating <n> times\n");
 printf("  -T            same as -t, but show total times at the end\n");
 printf("  -TM           same as -tm, but show total time at the end\n");
 printf("  -version      show PCRE2 version and exit\n");
 }


 /*************************************************
 *             Handle -C option                   *
 *************************************************/

 /* This option outputs configuration options and sets an appropriate return
 code when asked for a single option. The code is abstracted into a separate
 function because of its size. Use whichever pcre2_config() function is
 available.

 Argument:   an option name or NULL
 Returns:    the return code
 */

 static int
 c_option(const char *arg)
 {
 uint32_t optval;
 unsigned int i = COPTLISTCOUNT;
 int yield = 0;

 if (arg != NULL && arg[0] != CHAR_MINUS)
   {
   for (i = 0; i < COPTLISTCOUNT; i++)
     if (strcmp(arg, coptlist[i].name) == 0) break;

   if (i >= COPTLISTCOUNT)
     {
     fprintf(stderr, "** Unknown -C option '%s'\n", arg);
     return 0;
     }

   switch (coptlist[i].type)
     {
     case CONF_BSR:
     (void)PCRE2_CONFIG(coptlist[i].value, &optval);
     printf("%s\n", (optval == PCRE2_BSR_ANYCRLF)? "ANYCRLF" : "ANY");
     break;

     case CONF_FIX:
     yield = coptlist[i].value;
     printf("%d\n", yield);
     break;

     case CONF_FIZ:
     optval = coptlist[i].value;
     printf("%d\n", optval);
     break;

     case CONF_INT:
     (void)PCRE2_CONFIG(coptlist[i].value, &yield);
     printf("%d\n", yield);
     break;

     case CONF_NL:
     (void)PCRE2_CONFIG(coptlist[i].value, &optval);
     print_newline_config(optval, TRUE);
     break;
     }

 /* For VMS, return the value by setting a symbol, for certain values only. This
 is contributed code which the PCRE2 developers have no means of testing. */

 #ifdef __VMS

 /* This is the original code provided by the first VMS contributor. */
 #ifdef NEVER
   if (copytlist[i].type == CONF_FIX || coptlist[i].type == CONF_INT)
     {
     char ucname[16];
     strcpy(ucname, coptlist[i].name);
     for (i = 0; ucname[i] != 0; i++) ucname[i] = toupper[ucname[i]];
     vms_setsymbol(ucname, 0, optval);
     }
 #endif

 /* This is the new code, provided by a second VMS contributor. */

   if (coptlist[i].type == CONF_FIX || coptlist[i].type == CONF_INT)
     {
     char nam_buf[22], val_buf[4];
     $DESCRIPTOR(nam, nam_buf);
     $DESCRIPTOR(val, val_buf);

     strcpy(nam_buf, coptlist[i].name);
     nam.dsc$w_length = strlen(nam_buf);
     sprintf(val_buf, "%d", yield);
     val.dsc$w_length = strlen(val_buf);
     lib$set_symbol(&nam, &val);
     }
 #endif  /* __VMS */

   return yield;
   }

 /* No argument for -C: output all configuration information. */

 print_version(stdout);
 printf("Compiled with\n");

 #ifdef EBCDIC
 printf("  EBCDIC code support: LF is 0x%02x\n", CHAR_LF);
 #if defined NATIVE_ZOS
 printf("  EBCDIC code page %s or similar\n", pcrz_cpversion());
 #endif
 #endif

 (void)PCRE2_CONFIG(PCRE2_CONFIG_COMPILED_WIDTHS, &optval);
 if (optval & 1) printf("  8-bit support\n");
 if (optval & 2) printf("  16-bit support\n");
 if (optval & 4) printf("  32-bit support\n");

 #ifdef SUPPORT_VALGRIND
 printf("  Valgrind support\n");
 #endif

 (void)PCRE2_CONFIG(PCRE2_CONFIG_UNICODE, &optval);
 if (optval != 0)
   {
   printf("  UTF and UCP support (");
   print_unicode_version(stdout);
   printf(")\n");
   }
 else printf("  No Unicode support\n");

 (void)PCRE2_CONFIG(PCRE2_CONFIG_JIT, &optval);
 if (optval != 0)
   {
   printf("  Just-in-time compiler support: ");
   print_jit_target(stdout);
   printf("\n");
   }
 else
   {
   printf("  No just-in-time compiler support\n");
   }

 (void)PCRE2_CONFIG(PCRE2_CONFIG_NEWLINE, &optval);
 print_newline_config(optval, FALSE);
 (void)PCRE2_CONFIG(PCRE2_CONFIG_BSR, &optval);
 printf("  \\R matches %s\n",
   (optval == PCRE2_BSR_ANYCRLF)? "CR, LF, or CRLF only" :
                                  "all Unicode newlines");
 (void)PCRE2_CONFIG(PCRE2_CONFIG_NEVER_BACKSLASH_C, &optval);
 printf("  \\C is %ssupported\n", optval? "not ":"");
 (void)PCRE2_CONFIG(PCRE2_CONFIG_LINKSIZE, &optval);
 printf("  Internal link size = %d\n", optval);
 (void)PCRE2_CONFIG(PCRE2_CONFIG_PARENSLIMIT, &optval);
 printf("  Parentheses nest limit = %d\n", optval);
 (void)PCRE2_CONFIG(PCRE2_CONFIG_HEAPLIMIT, &optval);
 printf("  Default heap limit = %d kibibytes\n", optval);
 (void)PCRE2_CONFIG(PCRE2_CONFIG_MATCHLIMIT, &optval);
 printf("  Default match limit = %d\n", optval);
 (void)PCRE2_CONFIG(PCRE2_CONFIG_DEPTHLIMIT, &optval);
 printf("  Default depth limit = %d\n", optval);

 #if defined SUPPORT_LIBREADLINE
 printf("  pcre2test has libreadline support\n");
 #elif defined SUPPORT_LIBEDIT
 printf("  pcre2test has libedit support\n");
 #else
 printf("  pcre2test has neither libreadline nor libedit support\n");
 #endif

 return 0;
 }


 /*************************************************
 *      Format one property/script list item      *
 *************************************************/

 #ifdef SUPPORT_UNICODE
 static void
 format_list_item(int16_t *ff, char *buff, BOOL isscript)
 {
 int count;
 int maxi = 0;
 const char *maxs = "";
 size_t max = 0;

 for (count = 0; ff[count] >= 0; count++) {}

 /* Find the name to put first. For scripts, any 3-character name is chosen.
 For non-scripts, or if there is no 3-character name, take the longest. */

 for (int i = 0; ff[i] >= 0; i++)
   {
   const char *s = PRIV(utt_names) + ff[i];
   size_t len = strlen(s);
   if (isscript && len == 3)
     {
     maxi = i;
     max = len;
     maxs = s;
     break;
     }
   else if (len > max)
     {
     max = len;
     maxi = i;
     maxs = s;
     }
   }

 strcpy(buff, maxs);
 buff += max;

 if (count > 1)
   {
   const char *sep = " (";
   for (int i = 0; i < count; i++)
     {
     if (i == maxi) continue;
     buff += sprintf(buff, "%s%s", sep, PRIV(utt_names) + ff[i]);
     sep = ", ";
     }
   (void)sprintf(buff, ")");
   }
 }
 #endif  /* SUPPORT_UNICODE */


 /*************************************************
 *        Display scripts or properties           *
 *************************************************/

 #define MAX_SYNONYMS 5

 static void
 display_properties(BOOL wantscripts)
 {
 #ifndef SUPPORT_UNICODE
 (void)wantscripts;
 printf("** This version of PCRE2 was compiled without Unicode support.\n");
 #else

 const char *typename;
 uint16_t seentypes[1024];
 uint16_t seenvalues[1024];
 int seencount = 0;
 int16_t found[256][MAX_SYNONYMS + 1];
 int fc = 0;
 int colwidth = 40;
 int n;

 if (wantscripts)
   {
   n = ucp_Script_Count;
   typename = "SCRIPTS";
   }
 else
   {
   n = ucp_Bprop_Count;
   typename = "PROPERTIES";
   }

 for (size_t i = 0; i < PRIV(utt_size); i++)
   {
   int k;
   int m = 0;
   int16_t *fv;
   const ucp_type_table *t = PRIV(utt) + i;
   unsigned int value = t->value;

   if (wantscripts)
     {
     if (t->type != PT_SC && t->type != PT_SCX) continue;
     }
   else
     {
     if (t->type != PT_BOOL) continue;
     }

   for (k = 0; k < seencount; k++)
     {
     if (t->type == seentypes[k] && t->value == seenvalues[k]) break;
     }
   if (k < seencount) continue;

   seentypes[seencount] = t->type;
   seenvalues[seencount++] = t->value;

   fv = found[fc++];
   fv[m++] = t->name_offset;

   for (size_t j = i + 1; j < PRIV(utt_size); j++)
     {
     const ucp_type_table *tt = PRIV(utt) + j;
     if (tt->type != t->type || tt->value != value) continue;
     if (m >= MAX_SYNONYMS)
       printf("** Too many synonyms: %s ignored\n",
         PRIV(utt_names) + tt->name_offset);
     else fv[m++] = tt->name_offset;
     }

   fv[m] = -1;
   }

 printf("-------------------------- SUPPORTED %s --------------------------\n\n",
   typename);

 if (!wantscripts) printf(
 "This release of PCRE2 supports Unicode's general category properties such\n"
 "as Lu (upper case letter), bi-directional properties such as Bidi_Class,\n"
 "and the following binary (yes/no) properties:\n\n");


 for (int k = 0; k < (n+1)/2; k++)
   {
   int x;
   char buff1[128];
   char buff2[128];

   format_list_item(found[k], buff1, wantscripts);
   x = k + (n+1)/2;
   if (x < n) format_list_item(found[x], buff2, wantscripts);
     else buff2[0] = 0;

   x = printf("%s", buff1);
   while (x++ < colwidth) printf(" ");
   printf("%s\n", buff2);
   }

 #endif  /* SUPPORT_UNICODE */
 }


 /*************************************************
 *              Display one modifier              *
 *************************************************/

 static void
 display_one_modifier(modstruct *m, BOOL for_pattern)
 {
 uint32_t c = (!for_pattern && (m->which == MOD_PND || m->which == MOD_PNDP))?
   '*' : ' ';
 printf("%c%s", c, m->name);
 for (size_t i = 0; i < C1MODLISTCOUNT; i++)
   {
   if (strcmp(m->name, c1modlist[i].fullname) == 0)
     printf(" (%c)", c1modlist[i].onechar);
   }
 }


 /*************************************************
 *       Display pattern or subject modifiers     *
 *************************************************/

 /* In order to print in two columns, first scan without printing to get a list
 of the modifiers that are required.

 Arguments:
   for_pattern   TRUE for pattern modifiers, FALSE for subject modifiers
   title         string to be used in title

 Returns:        nothing
 */

 static void
 display_selected_modifiers(BOOL for_pattern, const char *title)
 {
 uint32_t i, j;
 uint32_t n = 0;
 uint32_t list[MODLISTCOUNT];
 uint32_t extra[MODLISTCOUNT];

 for (i = 0; i < MODLISTCOUNT; i++)
   {
   BOOL is_pattern = TRUE;
   modstruct *m = modlist + i;

   switch (m->which)
     {
     case MOD_CTC:       /* Compile context */
     case MOD_PAT:       /* Pattern */
     case MOD_PATP:      /* Pattern, OK for Perl-compatible test */
     break;

     /* The MOD_PND and MOD_PNDP modifiers are precisely those that affect
     subjects, but can be given with a pattern. We list them as subject
     modifiers, but marked with an asterisk.*/

     case MOD_CTM:       /* Match context */
     case MOD_DAT:       /* Subject line */
     case MOD_DATP:      /* Subject line, OK for Perl-compatible test */
     case MOD_PND:       /* As PD, but not default pattern */
     case MOD_PNDP:      /* As PND, OK for Perl-compatible test */
     is_pattern = FALSE;
     break;

     default: printf("** Unknown type for modifier '%s'\n", m->name);
     /* Fall through */
     case MOD_PD:        /* Pattern or subject */
     case MOD_PDP:       /* As PD, OK for Perl-compatible test */
     is_pattern = for_pattern;
     break;
     }

   if (for_pattern == is_pattern)
     {
     extra[n] = 0;
     for (size_t k = 0; k < C1MODLISTCOUNT; k++)
       {
       if (strcmp(m->name, c1modlist[k].fullname) == 0)
         {
         extra[n] += 4;
         break;
         }
       }
     list[n++] = i;
     }
   }

 /* Now print from the list in two columns. */

 printf("-------------- %s MODIFIERS --------------\n", title);

 for (i = 0, j = (n+1)/2; i < (n+1)/2; i++, j++)
   {
   modstruct *m = modlist + list[i];
   display_one_modifier(m, for_pattern);
   if (j < n)
     {
     uint32_t k = 27 - strlen(m->name) - extra[i];
     while (k-- > 0) printf(" ");
     display_one_modifier(modlist + list[j], for_pattern);
     }
   printf("\n");
   }
 }


 /*************************************************
 *          Display the list of modifiers         *
 *************************************************/

 static void
 display_modifiers(void)
 {
 printf(
   "An asterisk on a subject modifier means that it may be given on a pattern\n"
   "line, in order to apply to all subjects matched by that pattern. Modifiers\n"
   "that are listed for both patterns and subjects have different effects in\n"
   "each case.\n\n");
 display_selected_modifiers(TRUE, "PATTERN");
 printf("\n");
 display_selected_modifiers(FALSE, "SUBJECT");
 }


 /*************************************************
 *                Main Program                    *
 *************************************************/

 int
 main(int argc, char **argv)
 {
 uint32_t temp;
 uint32_t yield = 0;
 uint32_t op = 1;
 BOOL notdone = TRUE;
 BOOL quiet = FALSE;
 BOOL showtotaltimes = FALSE;
 BOOL skipping = FALSE;
 char *arg_subject = NULL;
 char *arg_pattern = NULL;
 char *arg_error = NULL;

 /* The offsets to the options and control bits fields of the pattern and data
 control blocks must be the same so that common options and controls such as
 "anchored" or "memory" can work for either of them from a single table entry.
 We cannot test this till runtime because "offsetof" does not work in the
 preprocessor. */

 if (PO(options) != DO(options) || PO(control) != DO(control) ||
     PO(control2) != DO(control2))
   {
   fprintf(stderr, "** Coding error: "
     "options and control offsets for pattern and data must be the same.\n");
   return 1;
   }

 /* Get the PCRE2 and Unicode version number and JIT target information, at the
 same time checking that a request for the length gives the same answer. Also
 check lengths for non-string items. */

 if (PCRE2_CONFIG(PCRE2_CONFIG_VERSION, NULL) !=
     PCRE2_CONFIG(PCRE2_CONFIG_VERSION, version) ||

     PCRE2_CONFIG(PCRE2_CONFIG_UNICODE_VERSION, NULL) !=
     PCRE2_CONFIG(PCRE2_CONFIG_UNICODE_VERSION, uversion) ||

     PCRE2_CONFIG(PCRE2_CONFIG_JITTARGET, NULL) !=
     PCRE2_CONFIG(PCRE2_CONFIG_JITTARGET, jittarget) ||

     PCRE2_CONFIG(PCRE2_CONFIG_UNICODE, NULL) != sizeof(uint32_t) ||
     PCRE2_CONFIG(PCRE2_CONFIG_MATCHLIMIT, NULL) != sizeof(uint32_t))
   {
   fprintf(stderr, "** Error in pcre2_config(): bad length\n");
   return 1;
   }

 /* Check that bad options are diagnosed. */

 if (PCRE2_CONFIG(999, NULL) != PCRE2_ERROR_BADOPTION ||
     PCRE2_CONFIG(999, &temp) != PCRE2_ERROR_BADOPTION)
   {
   fprintf(stderr, "** Error in pcre2_config(): bad option not diagnosed\n");
   return 1;
   }

 /* This configuration option is now obsolete, but running a quick check ensures
 that its code is covered. */

 (void)PCRE2_CONFIG(PCRE2_CONFIG_STACKRECURSE, &temp);

 /* Get buffers from malloc() so that valgrind will check their misuse when
 debugging. They grow automatically when very long lines are read. The 16-
 and 32-bit buffers (pbuffer16, pbuffer32) are obtained only if needed. */

 buffer = (uint8_t *)malloc(pbuffer8_size);
 pbuffer8 = (uint8_t *)malloc(pbuffer8_size);

 /* The following  _setmode() stuff is some Windows magic that tells its runtime
 library to translate CRLF into a single LF character. At least, that's what
 I've been told: never having used Windows I take this all on trust. Originally
 it set 0x8000, but then I was advised that _O_BINARY was better. */

 #if defined(_WIN32) || defined(WIN32)
 _setmode( _fileno( stdout ), _O_BINARY );
 #endif

 /* Initialization that does not depend on the running mode. */

 locale_name[0] = 0;

 memset(&def_patctl, 0, sizeof(patctl));
 def_patctl.convert_type = CONVERT_UNSET;

 memset(&def_datctl, 0, sizeof(datctl));
 def_datctl.oveccount = DEFAULT_OVECCOUNT;
 def_datctl.copy_numbers[0] = -1;
 def_datctl.get_numbers[0] = -1;
 def_datctl.startend[0] = def_datctl.startend[1] = CFORE_UNSET;
 def_datctl.cerror[0] = def_datctl.cerror[1] = CFORE_UNSET;
 def_datctl.cfail[0] = def_datctl.cfail[1] = CFORE_UNSET;

 /* Scan command line options. */

 while (argc > 1 && argv[op][0] == '-' && argv[op][1] != 0)
   {
   char *endptr;
   char *arg = argv[op];
   unsigned long uli;

   /* List modifiers and exit. */

   if (strcmp(arg, "-LM") == 0)
     {
     display_modifiers();
     goto EXIT;
     }

   /* List properties and exit */

   if (strcmp(arg, "-LP") == 0)
     {
     display_properties(FALSE);
     goto EXIT;
     }

   /* List scripts and exit */

   if (strcmp(arg, "-LS") == 0)
     {
     display_properties(TRUE);
     goto EXIT;
     }

   /* Display and/or set return code for configuration options. */

   if (strcmp(arg, "-C") == 0)
     {
     yield = c_option(argv[op + 1]);
     goto EXIT;
     }

   /* Select operating mode. Ensure that pcre2_config() is called in 16-bit
   and 32-bit modes because that won't happen naturally when 8-bit is also
   configured. Also call some other functions that are not otherwise used. This
   means that a coverage report won't claim there are uncalled functions. */

   if (strcmp(arg, "-8") == 0)
     {
 #ifdef SUPPORT_PCRE2_8
     test_mode = PCRE8_MODE;
     (void)pcre2_set_bsr_8(pat_context8, 999);
     (void)pcre2_set_newline_8(pat_context8, 999);
 #else
     fprintf(stderr,
       "** This version of PCRE2 was built without 8-bit support\n");
     exit(1);
 #endif
     }

   else if (strcmp(arg, "-16") == 0)
     {
 #ifdef SUPPORT_PCRE2_16
     test_mode = PCRE16_MODE;
     (void)pcre2_config_16(PCRE2_CONFIG_VERSION, NULL);
     (void)pcre2_set_bsr_16(pat_context16, 999);
     (void)pcre2_set_newline_16(pat_context16, 999);
 #else
     fprintf(stderr,
       "** This version of PCRE2 was built without 16-bit support\n");
     exit(1);
 #endif
     }

   else if (strcmp(arg, "-32") == 0)
     {
 #ifdef SUPPORT_PCRE2_32
     test_mode = PCRE32_MODE;
     (void)pcre2_config_32(PCRE2_CONFIG_VERSION, NULL);
     (void)pcre2_set_bsr_32(pat_context32, 999);
     (void)pcre2_set_newline_32(pat_context32, 999);
 #else
     fprintf(stderr,
       "** This version of PCRE2 was built without 32-bit support\n");
     exit(1);
 #endif
     }

   /* Set quiet (no version verification) */

   else if (strcmp(arg, "-q") == 0) quiet = TRUE;

   /* Set system stack size */

   else if (strcmp(arg, "-S") == 0 && argc > 2 &&
       ((uli = strtoul(argv[op+1], &endptr, 10)), *endptr == 0))
     {
 #if defined(_WIN32) || defined(WIN32) || defined(__HAIKU__) || defined(NATIVE_ZOS) || defined(__VMS)
     fprintf(stderr, "pcre2test: -S is not supported on this OS\n");
     exit(1);
 #else
     int rc;
     uint32_t stack_size;
     struct rlimit rlim;
     if (U32OVERFLOW(uli))
       {
       fprintf(stderr, "** Argument for -S is too big\n");
       exit(1);
       }
     stack_size = (uint32_t)uli;
     getrlimit(RLIMIT_STACK, &rlim);
     rlim.rlim_cur = stack_size * 1024 * 1024;
     if (rlim.rlim_cur > rlim.rlim_max)
       {
       fprintf(stderr,
         "pcre2test: requested stack size %luMiB is greater than hard limit ",
           (unsigned long int)stack_size);
       if (rlim.rlim_max % (1024*1024) == 0) fprintf(stderr, "%luMiB\n",
         (unsigned long int)(rlim.rlim_max/(1024 * 1024)));
       else if (rlim.rlim_max % 1024 == 0) fprintf(stderr, "%luKiB\n",
         (unsigned long int)(rlim.rlim_max/1024));
       else fprintf(stderr, "%lu bytes\n", (unsigned long int)(rlim.rlim_max));
       exit(1);
       }
     rc = setrlimit(RLIMIT_STACK, &rlim);
     if (rc != 0)
       {
       fprintf(stderr, "pcre2test: setting stack size %luMiB failed: %s\n",
         (unsigned long int)stack_size, strerror(errno));
       exit(1);
       }
     op++;
     argc--;
 #endif
     }

   /* Set some common pattern and subject controls */

   else if (strcmp(arg, "-AC") == 0)
     {
     def_patctl.options |= PCRE2_AUTO_CALLOUT;
     def_datctl.control2 |= CTL2_CALLOUT_EXTRA;
     }
   else if (strcmp(arg, "-ac") == 0)  def_patctl.options |= PCRE2_AUTO_CALLOUT;
   else if (strcmp(arg, "-b") == 0)   def_patctl.control |= CTL_FULLBINCODE;
   else if (strcmp(arg, "-d") == 0)   def_patctl.control |= CTL_DEBUG;
   else if (strcmp(arg, "-dfa") == 0) def_datctl.control |= CTL_DFA;
   else if (strcmp(arg, "-i") == 0)   def_patctl.control |= CTL_INFO;
   else if (strcmp(arg, "-jit") == 0 || strcmp(arg, "-jitverify") == 0 ||
            strcmp(arg, "-jitfast") == 0)
     {
     if (arg[4] == 'v') def_patctl.control |= CTL_JITVERIFY;
       else if (arg[4] == 'f') def_patctl.control |= CTL_JITFAST;
     def_patctl.jit = JIT_DEFAULT;  /* full & partial */
 #ifndef SUPPORT_JIT
     fprintf(stderr, "** Warning: JIT support is not available: "
                     "-jit[fast|verify] calls functions that do nothing.\n");
 #endif
     }

   /* Set timing parameters */

   else if (strcmp(arg, "-t") == 0 || strcmp(arg, "-tm") == 0 ||
            strcmp(arg, "-T") == 0 || strcmp(arg, "-TM") == 0)
     {
     int both = arg[2] == 0;
     showtotaltimes = arg[1] == 'T';
     if (argc > 2 && (uli = strtoul(argv[op+1], &endptr, 10), *endptr == 0))
       {
       if (uli == 0)
         {
         fprintf(stderr, "** Argument for %s must not be zero\n", arg);
         exit(1);
         }
       if (U32OVERFLOW(uli))
         {
         fprintf(stderr, "** Argument for %s is too big\n", arg);
         exit(1);
         }
       timeitm = (int)uli;
       op++;
       argc--;
       }
     else timeitm = LOOPREPEAT;
     if (both) timeit = timeitm;
     }

   /* Give help */

   else if (strcmp(arg, "-help") == 0 ||
            strcmp(arg, "--help") == 0)
     {
     usage();
     goto EXIT;
     }

   /* Show version */

   else if (strcmp(arg, "-version") == 0 ||
            strcmp(arg, "--version") == 0)
     {
     print_version(stdout);
     goto EXIT;
     }

   /* The following options save their data for processing once we know what
   the running mode is. */

   else if (strcmp(arg, "-error") == 0)
     {
     arg_error = argv[op+1];
     goto CHECK_VALUE_EXISTS;
     }

   else if (strcmp(arg, "-subject") == 0)
     {
     arg_subject = argv[op+1];
     goto CHECK_VALUE_EXISTS;
     }

   else if (strcmp(arg, "-pattern") == 0)
     {
     arg_pattern = argv[op+1];
     CHECK_VALUE_EXISTS:
     if (argc <= 2)
       {
       fprintf(stderr, "** Missing value for %s\n", arg);
       yield = 1;
       goto EXIT;
       }
     op++;
     argc--;
     }

   /* Unrecognized option */

   else
     {
     fprintf(stderr, "** Unknown or malformed option '%s'\n", arg);
     usage();
     yield = 1;
     goto EXIT;
     }
   op++;
   argc--;
   }

 /* If -error was present, get the error numbers, show the messages, and exit.
 We wait to do this until we know which mode we are in. */

 if (arg_error != NULL)
   {
   int len;
   int errcode;
   char *endptr;

 /* Ensure the relevant non-8-bit buffer is available. Ensure that it is at
 least 128 code units, because it is used for retrieving error messages. */

 #ifdef SUPPORT_PCRE2_16
   if (test_mode == PCRE16_MODE)
     {
     pbuffer16_size = 256;
     pbuffer16 = (uint16_t *)malloc(pbuffer16_size);
     if (pbuffer16 == NULL)
       {
       fprintf(stderr, "pcre2test: malloc(%" SIZ_FORM ") failed for pbuffer16\n",
         pbuffer16_size);
       yield = 1;
       goto EXIT;
       }
     }
 #endif

 #ifdef SUPPORT_PCRE2_32
   if (test_mode == PCRE32_MODE)
     {
     pbuffer32_size = 512;
     pbuffer32 = (uint32_t *)malloc(pbuffer32_size);
     if (pbuffer32 == NULL)
       {
       fprintf(stderr, "pcre2test: malloc(%" SIZ_FORM ") failed for pbuffer32\n",
         pbuffer32_size);
       yield = 1;
       goto EXIT;
       }
     }
 #endif

   /* Loop along a list of error numbers. */

   for (;;)
     {
     errcode = strtol(arg_error, &endptr, 10);
     if (*endptr != 0 && *endptr != CHAR_COMMA)
       {
       fprintf(stderr, "** '%s' is not a valid error number list\n", arg_error);
       yield = 1;
       goto EXIT;
       }
     printf("Error %d: ", errcode);
     PCRE2_GET_ERROR_MESSAGE(len, errcode, pbuffer);
     if (len < 0)
       {
       switch (len)
         {
         case PCRE2_ERROR_BADDATA:
         printf("PCRE2_ERROR_BADDATA (unknown error number)");
         break;

         case PCRE2_ERROR_NOMEMORY:
         printf("PCRE2_ERROR_NOMEMORY (buffer too small)");
         break;

         default:
         printf("Unexpected return (%d) from pcre2_get_error_message()", len);
         break;
         }
       }
     else
       {
       PCHARSV(CASTVAR(void *, pbuffer), 0, len, FALSE, stdout);
       }
     printf("\n");
     if (*endptr == 0) goto EXIT;
     arg_error = endptr + 1;
     }
   /* Control never reaches here */
   }  /* End of -error handling */

 /* Initialize things that cannot be done until we know which test mode we are
 running in. Exercise the general context copying and match data size functions,
 which are not otherwise used. */

 code_unit_size = test_mode/8;
 max_oveccount = DEFAULT_OVECCOUNT;

 /* Use macros to save a lot of duplication. */

 #define CREATECONTEXTS \
   G(general_context,BITS) = G(pcre2_general_context_create_,BITS)(&my_malloc, &my_free, NULL); \
   G(general_context_copy,BITS) = G(pcre2_general_context_copy_,BITS)(G(general_context,BITS)); \
   G(default_pat_context,BITS) = G(pcre2_compile_context_create_,BITS)(G(general_context,BITS)); \
   G(pat_context,BITS) = G(pcre2_compile_context_copy_,BITS)(G(default_pat_context,BITS)); \
   G(default_dat_context,BITS) = G(pcre2_match_context_create_,BITS)(G(general_context,BITS)); \
   G(dat_context,BITS) = G(pcre2_match_context_copy_,BITS)(G(default_dat_context,BITS)); \
   G(default_con_context,BITS) = G(pcre2_convert_context_create_,BITS)(G(general_context,BITS)); \
   G(con_context,BITS) = G(pcre2_convert_context_copy_,BITS)(G(default_con_context,BITS)); \
   G(match_data,BITS) = G(pcre2_match_data_create_,BITS)(max_oveccount, G(general_context,BITS))

 #define CONTEXTTESTS \
   (void)G(pcre2_set_compile_extra_options_,BITS)(G(pat_context,BITS), 0); \
   (void)G(pcre2_set_max_pattern_length_,BITS)(G(pat_context,BITS), 0); \
   (void)G(pcre2_set_offset_limit_,BITS)(G(dat_context,BITS), 0); \
   (void)G(pcre2_get_match_data_size_,BITS)(G(match_data,BITS))


 /* Call the appropriate functions for the current mode, and exercise some
 functions that are not otherwise called. */

 #ifdef SUPPORT_PCRE2_8
 #undef BITS
 #define BITS 8
 if (test_mode == PCRE8_MODE)
   {
   CREATECONTEXTS;
   CONTEXTTESTS;
   }
 #endif

 #ifdef SUPPORT_PCRE2_16
 #undef BITS
 #define BITS 16
 if (test_mode == PCRE16_MODE)
   {
   CREATECONTEXTS;
   CONTEXTTESTS;
   }
 #endif

 #ifdef SUPPORT_PCRE2_32
 #undef BITS
 #define BITS 32
 if (test_mode == PCRE32_MODE)
   {
   CREATECONTEXTS;
   CONTEXTTESTS;
   }
 #endif

 /* Set a default parentheses nest limit that is large enough to run the
 standard tests (this also exercises the function). */

 PCRE2_SET_PARENS_NEST_LIMIT(default_pat_context, PARENS_NEST_DEFAULT);

 /* Handle command line modifier settings, sending any error messages to
 stderr. We need to know the mode before modifying the context, and it is tidier
 to do them all in the same way. */

 outfile = stderr;
 if ((arg_pattern != NULL &&
     !decode_modifiers((uint8_t *)arg_pattern, CTX_DEFPAT, &def_patctl, NULL)) ||
     (arg_subject != NULL &&
     !decode_modifiers((uint8_t *)arg_subject, CTX_DEFDAT, NULL, &def_datctl)))
   {
   yield = 1;
   goto EXIT;
   }

 /* Sort out the input and output files, defaulting to stdin/stdout. */

 infile = stdin;
 outfile = stdout;

 if (argc > 1 && strcmp(argv[op], "-") != 0)
   {
   infile = fopen(argv[op], INPUT_MODE);
   if (infile == NULL)
     {
     printf("** Failed to open '%s': %s\n", argv[op], strerror(errno));
     yield = 1;
     goto EXIT;
     }
   }

 #if defined(SUPPORT_LIBREADLINE) || defined(SUPPORT_LIBEDIT)
 if (INTERACTIVE(infile)) using_history();
 #endif

 if (argc > 2)
   {
   outfile = fopen(argv[op+1], OUTPUT_MODE);
   if (outfile == NULL)
     {
     printf("** Failed to open '%s': %s\n", argv[op+1], strerror(errno));
     yield = 1;
     goto EXIT;
     }
   }

 /* Output a heading line unless quiet, then process input lines. */

 if (!quiet) print_version(outfile);

 SET(compiled_code, NULL);

 #ifdef SUPPORT_PCRE2_8
 preg.re_pcre2_code = NULL;
 preg.re_match_data = NULL;
 #endif

 while (notdone)
   {
   uint8_t *p;
   int rc = PR_OK;
   BOOL expectdata = TEST(compiled_code, !=, NULL);
 #ifdef SUPPORT_PCRE2_8
   expectdata |= preg.re_pcre2_code != NULL;
 #endif

   if (extend_inputline(infile, buffer, expectdata? "data> " : "  re> ") == NULL)
     break;
   if (!INTERACTIVE(infile)) fprintf(outfile, "%s", (char *)buffer);
   fflush(outfile);
   p = buffer;

   /* If we have a pattern set up for testing, or we are skipping after a
   compile failure, a blank line terminates this test. */

   if (expectdata || skipping)
     {
     while (isspace(*p)) p++;
     if (*p == 0)
       {
 #ifdef SUPPORT_PCRE2_8
       if (preg.re_pcre2_code != NULL)
         {
         regfree(&preg);
         preg.re_pcre2_code = NULL;
         preg.re_match_data = NULL;
         }
 #endif  /* SUPPORT_PCRE2_8 */
       if (TEST(compiled_code, !=, NULL))
         {
         SUB1(pcre2_code_free, compiled_code);
         SET(compiled_code, NULL);
         }
       skipping = FALSE;
       setlocale(LC_CTYPE, "C");
       }

     /* Otherwise, if we are not skipping, and the line is not a data comment
     line starting with "\=", process a data line. */

     else if (!skipping && !(p[0] == '\\' && p[1] == '=' && isspace(p[2])))
       {
       rc = process_data();
       }
     }

   /* We do not have a pattern set up for testing. Lines starting with # are
   either comments or special commands. Blank lines are ignored. Otherwise, the
   line must start with a valid delimiter. It is then processed as a pattern
   line. A copy of the pattern is left in pbuffer8 for use by callouts. Under
   valgrind, make the unused part of the buffer undefined, to catch overruns. */

   else if (*p == '#')
     {
     if (isspace(p[1]) || p[1] == '!' || p[1] == 0) continue;
     rc = process_command();
     }

   else if (strchr("/!\"'`%&-=_:;,@~", *p) != NULL)
     {
     rc = process_pattern();
     dfa_matched = 0;
     }

   else
     {
     while (isspace(*p)) p++;
     if (*p != 0)
       {
       fprintf(outfile, "** Invalid pattern delimiter '%c' (x%x).\n", *buffer,
         *buffer);
       rc = PR_SKIP;
       }
     }

   if (rc == PR_SKIP && !INTERACTIVE(infile)) skipping = TRUE;
   else if (rc == PR_ABEND)
     {
     fprintf(outfile, "** pcre2test run abandoned\n");
     yield = 1;
     goto EXIT;
     }
   }

 /* Finish off a normal run. */

 if (INTERACTIVE(infile)) fprintf(outfile, "\n");

 if (showtotaltimes)
   {
   const char *pad = "";
   fprintf(outfile, "--------------------------------------\n");
   if (timeit > 0)
     {
     fprintf(outfile, "Total compile time %.4f milliseconds\n",
       (((double)total_compile_time * 1000.0) / (double)timeit) /
         (double)CLOCKS_PER_SEC);
     if (total_jit_compile_time > 0)
       fprintf(outfile, "Total JIT compile  %.4f milliseconds\n",
         (((double)total_jit_compile_time * 1000.0) / (double)timeit) /
           (double)CLOCKS_PER_SEC);
     pad = "  ";
     }
   fprintf(outfile, "Total match time %s%.4f milliseconds\n", pad,
     (((double)total_match_time * 1000.0) / (double)timeitm) /
       (double)CLOCKS_PER_SEC);
   }


 EXIT:

 #if defined(SUPPORT_LIBREADLINE) || defined(SUPPORT_LIBEDIT)
 if (infile != NULL && INTERACTIVE(infile)) clear_history();
 #endif

 if (infile != NULL && infile != stdin) fclose(infile);
 if (outfile != NULL && outfile != stdout) fclose(outfile);

 free(buffer);
 free(dbuffer);
 free(pbuffer8);
 free(dfa_workspace);
 free(tables3);
 PCRE2_MAKETABLES_FREE(general_context, (void *)locale_tables);
 PCRE2_MATCH_DATA_FREE(match_data);
 SUB1(pcre2_code_free, compiled_code);

 while(patstacknext-- > 0)
   {
   SET(compiled_code, patstack[patstacknext]);
   SUB1(pcre2_code_free, compiled_code);
   }

 PCRE2_JIT_FREE_UNUSED_MEMORY(general_context);
 if (jit_stack != NULL)
   {
   PCRE2_JIT_STACK_FREE(jit_stack);
   }

 #define FREECONTEXTS \
   G(pcre2_general_context_free_,BITS)(G(general_context,BITS)); \
   G(pcre2_general_context_free_,BITS)(G(general_context_copy,BITS)); \
   G(pcre2_compile_context_free_,BITS)(G(pat_context,BITS)); \
   G(pcre2_compile_context_free_,BITS)(G(default_pat_context,BITS)); \
   G(pcre2_match_context_free_,BITS)(G(dat_context,BITS)); \
   G(pcre2_match_context_free_,BITS)(G(default_dat_context,BITS)); \
   G(pcre2_convert_context_free_,BITS)(G(default_con_context,BITS)); \
   G(pcre2_convert_context_free_,BITS)(G(con_context,BITS));

 #ifdef SUPPORT_PCRE2_8
 #undef BITS
 #define BITS 8
 if (preg.re_pcre2_code != NULL) regfree(&preg);
 FREECONTEXTS;
 #endif

 #ifdef SUPPORT_PCRE2_16
 #undef BITS
 #define BITS 16
 free(pbuffer16);
 FREECONTEXTS;
 #endif

 #ifdef SUPPORT_PCRE2_32
 #undef BITS
 #define BITS 32
 free(pbuffer32);
 FREECONTEXTS;
 #endif

 #if defined(__VMS)
   yield = SS$_NORMAL;  /* Return values via DCL symbols */
 #endif

 return yield;
 }

 /* End of pcre2test.c */