Add hb-string-array.hh
Used to build static string arrays that use no relocation.
diff --git a/src/Makefile.sources b/src/Makefile.sources
index 9fe8a40..74d953f 100644
--- a/src/Makefile.sources
+++ b/src/Makefile.sources
@@ -39,6 +39,7 @@
hb-shaper-impl-private.hh \
hb-shaper-private.hh \
hb-shaper.cc \
+ hb-string-array.hh \
hb-unicode-private.hh \
hb-unicode.cc \
hb-utf-private.hh \
diff --git a/src/hb-private.hh b/src/hb-private.hh
index 34476ca..268a2b0 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -54,6 +54,10 @@
#include <stdarg.h>
+#define HB_PASTE1(a,b) a##b
+#define HB_PASTE(a,b) HB_PASTE1(a,b)
+
+
/* Compile-time custom allocator support. */
#if defined(hb_malloc_impl) \
@@ -98,8 +102,6 @@
// Static assertions
#ifndef static_assert
-#define HB_PASTE1(a,b) a##b
-#define HB_PASTE(a,b) HB_PASTE1(a,b)
#define static_assert(e, msg) \
HB_UNUSED typedef int HB_PASTE(static_assertion_failed_at_line_, __LINE__) [(e) ? 1 : -1]
#endif // static_assert
diff --git a/src/hb-string-array.hh b/src/hb-string-array.hh
new file mode 100644
index 0000000..afad5d7
--- /dev/null
+++ b/src/hb-string-array.hh
@@ -0,0 +1,74 @@
+/*
+ * Copyright © 2017 Google, Inc.
+ *
+ * This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_STRING_ARRAY_HH
+#if 0 /* Make checks happy. */
+#define HB_STRING_ARRAY_HH
+#endif
+
+#include "hb-private.hh"
+
+/* Based on Bruno Haible's code in Appendix B of Ulrich Drepper's dsohowto.pdf:
+ * https://software.intel.com/sites/default/files/m/a/1/e/dsohowto.pdf */
+
+#define HB_STRING_ARRAY_TYPE_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr_t)
+#define HB_STRING_ARRAY_POOL_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr)
+#define HB_STRING_ARRAY_OFFS_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgidx)
+
+static const union HB_STRING_ARRAY_TYPE_NAME {
+ struct {
+#define _S(s) char HB_PASTE (str, __LINE__)[sizeof (s)];
+#include HB_STRING_ARRAY_LIST
+#undef _S
+ } st;
+ char str[0];
+}
+HB_STRING_ARRAY_POOL_NAME =
+{
+ {
+#define _S(s) s,
+#include HB_STRING_ARRAY_LIST
+#undef _S
+ }
+};
+static const unsigned int HB_STRING_ARRAY_OFFS_NAME[] =
+{
+#define _S(s) offsetof (union HB_STRING_ARRAY_TYPE_NAME, st.HB_PASTE(str, __LINE__)),
+#include HB_STRING_ARRAY_LIST
+#undef _S
+};
+
+static inline const char *
+HB_STRING_ARRAY_NAME (unsigned int i)
+{
+ return HB_STRING_ARRAY_POOL_NAME.str + HB_STRING_ARRAY_OFFS_NAME[i];
+}
+
+#undef HB_STRING_ARRAY_TYPE_NAME
+#undef HB_STRING_ARRAY_POOL_NAME
+#undef HB_STRING_ARRAY_OFFS_NAME
+
+#endif /* HB_STRING_ARRAY_HH */
