| /* |
| * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.lang; |
| |
| import java.util.Arrays; |
| import java.util.Locale; |
| import java.util.Objects; |
| import java.util.Spliterator; |
| import java.util.function.Consumer; |
| import java.util.function.IntConsumer; |
| import java.util.stream.IntStream; |
| import java.util.stream.Stream; |
| import java.util.stream.StreamSupport; |
| import jdk.internal.HotSpotIntrinsicCandidate; |
| |
| import static java.lang.String.LATIN1; |
| import static java.lang.String.UTF16; |
| import static java.lang.String.checkOffset; |
| |
| final class StringLatin1 { |
| |
| public static char charAt(byte[] value, int index) { |
| if (index < 0 || index >= value.length) { |
| throw new StringIndexOutOfBoundsException(index); |
| } |
| return (char)(value[index] & 0xff); |
| } |
| |
| public static boolean canEncode(int cp) { |
| return cp >>> 8 == 0; |
| } |
| |
| public static int length(byte[] value) { |
| return value.length; |
| } |
| |
| public static int codePointAt(byte[] value, int index, int end) { |
| return value[index] & 0xff; |
| } |
| |
| public static int codePointBefore(byte[] value, int index) { |
| return value[index - 1] & 0xff; |
| } |
| |
| public static int codePointCount(byte[] value, int beginIndex, int endIndex) { |
| return endIndex - beginIndex; |
| } |
| |
| public static char[] toChars(byte[] value) { |
| char[] dst = new char[value.length]; |
| inflate(value, 0, dst, 0, value.length); |
| return dst; |
| } |
| |
| public static byte[] inflate(byte[] value, int off, int len) { |
| byte[] ret = StringUTF16.newBytesFor(len); |
| inflate(value, off, ret, 0, len); |
| return ret; |
| } |
| |
| public static void getChars(byte[] value, int srcBegin, int srcEnd, char dst[], int dstBegin) { |
| inflate(value, srcBegin, dst, dstBegin, srcEnd - srcBegin); |
| } |
| |
| public static void getBytes(byte[] value, int srcBegin, int srcEnd, byte dst[], int dstBegin) { |
| System.arraycopy(value, srcBegin, dst, dstBegin, srcEnd - srcBegin); |
| } |
| |
| @HotSpotIntrinsicCandidate |
| public static boolean equals(byte[] value, byte[] other) { |
| if (value.length == other.length) { |
| for (int i = 0; i < value.length; i++) { |
| if (value[i] != other[i]) { |
| return false; |
| } |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| @HotSpotIntrinsicCandidate |
| public static int compareTo(byte[] value, byte[] other) { |
| int len1 = value.length; |
| int len2 = other.length; |
| return compareTo(value, other, len1, len2); |
| } |
| |
| public static int compareTo(byte[] value, byte[] other, int len1, int len2) { |
| int lim = Math.min(len1, len2); |
| for (int k = 0; k < lim; k++) { |
| if (value[k] != other[k]) { |
| return getChar(value, k) - getChar(other, k); |
| } |
| } |
| return len1 - len2; |
| } |
| |
| @HotSpotIntrinsicCandidate |
| public static int compareToUTF16(byte[] value, byte[] other) { |
| int len1 = length(value); |
| int len2 = StringUTF16.length(other); |
| return compareToUTF16Values(value, other, len1, len2); |
| } |
| |
| /* |
| * Checks the boundary and then compares the byte arrays. |
| */ |
| public static int compareToUTF16(byte[] value, byte[] other, int len1, int len2) { |
| checkOffset(len1, length(value)); |
| checkOffset(len2, StringUTF16.length(other)); |
| |
| return compareToUTF16Values(value, other, len1, len2); |
| } |
| |
| private static int compareToUTF16Values(byte[] value, byte[] other, int len1, int len2) { |
| int lim = Math.min(len1, len2); |
| for (int k = 0; k < lim; k++) { |
| char c1 = getChar(value, k); |
| char c2 = StringUTF16.getChar(other, k); |
| if (c1 != c2) { |
| return c1 - c2; |
| } |
| } |
| return len1 - len2; |
| } |
| |
| public static int compareToCI(byte[] value, byte[] other) { |
| int len1 = value.length; |
| int len2 = other.length; |
| int lim = Math.min(len1, len2); |
| for (int k = 0; k < lim; k++) { |
| if (value[k] != other[k]) { |
| // Android-changed: libcore doesn't have CharacterDataLatin1. |
| // char c1 = (char) CharacterDataLatin1.instance.toUpperCase(getChar(value, k)); |
| // char c2 = (char) CharacterDataLatin1.instance.toUpperCase(getChar(other, k)); |
| char c1 = (char) Character.toUpperCase(getChar(value, k)); |
| char c2 = (char) Character.toUpperCase(getChar(other, k)); |
| if (c1 != c2) { |
| c1 = Character.toLowerCase(c1); |
| c2 = Character.toLowerCase(c2); |
| if (c1 != c2) { |
| return c1 - c2; |
| } |
| } |
| } |
| } |
| return len1 - len2; |
| } |
| |
| public static int compareToCI_UTF16(byte[] value, byte[] other) { |
| int len1 = length(value); |
| int len2 = StringUTF16.length(other); |
| int lim = Math.min(len1, len2); |
| for (int k = 0; k < lim; k++) { |
| char c1 = getChar(value, k); |
| char c2 = StringUTF16.getChar(other, k); |
| if (c1 != c2) { |
| c1 = Character.toUpperCase(c1); |
| c2 = Character.toUpperCase(c2); |
| if (c1 != c2) { |
| c1 = Character.toLowerCase(c1); |
| c2 = Character.toLowerCase(c2); |
| if (c1 != c2) { |
| return c1 - c2; |
| } |
| } |
| } |
| } |
| return len1 - len2; |
| } |
| |
| public static int hashCode(byte[] value) { |
| int h = 0; |
| for (byte v : value) { |
| h = 31 * h + (v & 0xff); |
| } |
| return h; |
| } |
| |
| public static int indexOf(byte[] value, int ch, int fromIndex) { |
| if (!canEncode(ch)) { |
| return -1; |
| } |
| int max = value.length; |
| if (fromIndex < 0) { |
| fromIndex = 0; |
| } else if (fromIndex >= max) { |
| // Note: fromIndex might be near -1>>>1. |
| return -1; |
| } |
| byte c = (byte)ch; |
| for (int i = fromIndex; i < max; i++) { |
| if (value[i] == c) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| // Android-removed: Remove unused code. |
| /* |
| @HotSpotIntrinsicCandidate |
| public static int indexOf(byte[] value, byte[] str) { |
| if (str.length == 0) { |
| return 0; |
| } |
| if (value.length == 0) { |
| return -1; |
| } |
| return indexOf(value, value.length, str, str.length, 0); |
| } |
| */ |
| |
| @HotSpotIntrinsicCandidate |
| // Android-changed: libcore doesn't store String as Latin1 or UTF16 byte[] field. |
| // public static int indexOf(byte[] value, int valueCount, byte[] str, int strCount, int fromIndex) { |
| public static int indexOf(byte[] value, int valueCount, String str, int strCount, int fromIndex) { |
| // byte first = str[0]; |
| byte first = (byte) str.charAt(0); |
| int max = (valueCount - strCount); |
| for (int i = fromIndex; i <= max; i++) { |
| // Look for first character. |
| if (value[i] != first) { |
| while (++i <= max && value[i] != first); |
| } |
| // Found first character, now look at the rest of value |
| if (i <= max) { |
| int j = i + 1; |
| int end = j + strCount - 1; |
| // Android-changed: Use charAt() because libcore doesn't store byte[] in java level. |
| // for (int k = 1; j < end && value[j] == str[k]; j++, k++); |
| for (int k = 1; j < end && value[j] == ((byte) str.charAt(k)); j++, k++); |
| if (j == end) { |
| // Found whole string. |
| return i; |
| } |
| } |
| } |
| return -1; |
| } |
| |
| public static int lastIndexOf(byte[] src, int srcCount, |
| // Android-changed: String has no byte[] field in libcore. |
| // byte[] tgt, int tgtCount, int fromIndex) { |
| String tgt, int tgtCount, int fromIndex) { |
| int min = tgtCount - 1; |
| int i = min + fromIndex; |
| int strLastIndex = tgtCount - 1; |
| // char strLastChar = (char)(tgt[strLastIndex] & 0xff); |
| char strLastChar = tgt.charAt(strLastIndex); |
| |
| startSearchForLastChar: |
| while (true) { |
| while (i >= min && (src[i] & 0xff) != strLastChar) { |
| i--; |
| } |
| if (i < min) { |
| return -1; |
| } |
| int j = i - 1; |
| int start = j - strLastIndex; |
| int k = strLastIndex - 1; |
| while (j > start) { |
| // Android-changed: Use charAt() because libcore doesn't store byte[] in java level. |
| // if ((src[j--] & 0xff) != (tgt[k--] & 0xff)) { |
| if ((src[j--] & 0xff) != (tgt.charAt(k--) & 0xff)) { |
| i--; |
| continue startSearchForLastChar; |
| } |
| } |
| return start + 1; |
| } |
| } |
| |
| public static int lastIndexOf(final byte[] value, int ch, int fromIndex) { |
| if (!canEncode(ch)) { |
| return -1; |
| } |
| int off = Math.min(fromIndex, value.length - 1); |
| for (; off >= 0; off--) { |
| if (value[off] == (byte)ch) { |
| return off; |
| } |
| } |
| return -1; |
| } |
| |
| // BEGIN Android-removed: Remove unused code. |
| /* |
| public static String replace(byte[] value, char oldChar, char newChar) { |
| if (canEncode(oldChar)) { |
| int len = value.length; |
| int i = -1; |
| while (++i < len) { |
| if (value[i] == (byte)oldChar) { |
| break; |
| } |
| } |
| if (i < len) { |
| if (canEncode(newChar)) { |
| byte buf[] = new byte[len]; |
| for (int j = 0; j < i; j++) { // TBD arraycopy? |
| buf[j] = value[j]; |
| } |
| while (i < len) { |
| byte c = value[i]; |
| buf[i] = (c == (byte)oldChar) ? (byte)newChar : c; |
| i++; |
| } |
| return new String(buf, LATIN1); |
| } else { |
| byte[] buf = StringUTF16.newBytesFor(len); |
| // inflate from latin1 to UTF16 |
| inflate(value, 0, buf, 0, i); |
| while (i < len) { |
| char c = (char)(value[i] & 0xff); |
| StringUTF16.putChar(buf, i, (c == oldChar) ? newChar : c); |
| i++; |
| } |
| return new String(buf, UTF16); |
| } |
| } |
| } |
| return null; // for string to return this; |
| } |
| |
| // case insensitive |
| public static boolean regionMatchesCI(byte[] value, int toffset, |
| byte[] other, int ooffset, int len) { |
| int last = toffset + len; |
| while (toffset < last) { |
| char c1 = (char)(value[toffset++] & 0xff); |
| char c2 = (char)(other[ooffset++] & 0xff); |
| if (c1 == c2) { |
| continue; |
| } |
| char u1 = Character.toUpperCase(c1); |
| char u2 = Character.toUpperCase(c2); |
| if (u1 == u2) { |
| continue; |
| } |
| if (Character.toLowerCase(u1) == Character.toLowerCase(u2)) { |
| continue; |
| } |
| return false; |
| } |
| return true; |
| } |
| |
| public static boolean regionMatchesCI_UTF16(byte[] value, int toffset, |
| byte[] other, int ooffset, int len) { |
| int last = toffset + len; |
| while (toffset < last) { |
| char c1 = (char)(value[toffset++] & 0xff); |
| char c2 = StringUTF16.getChar(other, ooffset++); |
| if (c1 == c2) { |
| continue; |
| } |
| char u1 = Character.toUpperCase(c1); |
| char u2 = Character.toUpperCase(c2); |
| if (u1 == u2) { |
| continue; |
| } |
| if (Character.toLowerCase(u1) == Character.toLowerCase(u2)) { |
| continue; |
| } |
| return false; |
| } |
| return true; |
| } |
| |
| public static String toLowerCase(String str, byte[] value, Locale locale) { |
| if (locale == null) { |
| throw new NullPointerException(); |
| } |
| int first; |
| final int len = value.length; |
| // Now check if there are any characters that need to be changed, or are surrogate |
| for (first = 0 ; first < len; first++) { |
| int cp = value[first] & 0xff; |
| if (cp != Character.toLowerCase(cp)) { // no need to check Character.ERROR |
| break; |
| } |
| } |
| if (first == len) |
| return str; |
| String lang = locale.getLanguage(); |
| if (lang == "tr" || lang == "az" || lang == "lt") { |
| return toLowerCaseEx(str, value, first, locale, true); |
| } |
| byte[] result = new byte[len]; |
| System.arraycopy(value, 0, result, 0, first); // Just copy the first few |
| // lowerCase characters. |
| for (int i = first; i < len; i++) { |
| int cp = value[i] & 0xff; |
| cp = Character.toLowerCase(cp); |
| if (!canEncode(cp)) { // not a latin1 character |
| return toLowerCaseEx(str, value, first, locale, false); |
| } |
| result[i] = (byte)cp; |
| } |
| return new String(result, LATIN1); |
| } |
| |
| private static String toLowerCaseEx(String str, byte[] value, |
| int first, Locale locale, boolean localeDependent) |
| { |
| byte[] result = StringUTF16.newBytesFor(value.length); |
| int resultOffset = 0; |
| for (int i = 0; i < first; i++) { |
| StringUTF16.putChar(result, resultOffset++, value[i] & 0xff); |
| } |
| for (int i = first; i < value.length; i++) { |
| int srcChar = value[i] & 0xff; |
| int lowerChar; |
| char[] lowerCharArray; |
| if (localeDependent) { |
| lowerChar = ConditionalSpecialCasing.toLowerCaseEx(str, i, locale); |
| } else { |
| lowerChar = Character.toLowerCase(srcChar); |
| } |
| if (Character.isBmpCodePoint(lowerChar)) { // Character.ERROR is not a bmp |
| StringUTF16.putChar(result, resultOffset++, lowerChar); |
| } else { |
| if (lowerChar == Character.ERROR) { |
| lowerCharArray = ConditionalSpecialCasing.toLowerCaseCharArray(str, i, locale); |
| } else { |
| lowerCharArray = Character.toChars(lowerChar); |
| } |
| /* Grow result if needed * |
| int mapLen = lowerCharArray.length; |
| if (mapLen > 1) { |
| byte[] result2 = StringUTF16.newBytesFor((result.length >> 1) + mapLen - 1); |
| System.arraycopy(result, 0, result2, 0, resultOffset << 1); |
| result = result2; |
| } |
| for (int x = 0; x < mapLen; ++x) { |
| StringUTF16.putChar(result, resultOffset++, lowerCharArray[x]); |
| } |
| } |
| } |
| return StringUTF16.newString(result, 0, resultOffset); |
| } |
| |
| public static String toUpperCase(String str, byte[] value, Locale locale) { |
| if (locale == null) { |
| throw new NullPointerException(); |
| } |
| int first; |
| final int len = value.length; |
| |
| // Now check if there are any characters that need to be changed, or are surrogate |
| for (first = 0 ; first < len; first++ ) { |
| int cp = value[first] & 0xff; |
| if (cp != Character.toUpperCaseEx(cp)) { // no need to check Character.ERROR |
| break; |
| } |
| } |
| if (first == len) { |
| return str; |
| } |
| String lang = locale.getLanguage(); |
| if (lang == "tr" || lang == "az" || lang == "lt") { |
| return toUpperCaseEx(str, value, first, locale, true); |
| } |
| byte[] result = new byte[len]; |
| System.arraycopy(value, 0, result, 0, first); // Just copy the first few |
| // upperCase characters. |
| for (int i = first; i < len; i++) { |
| int cp = value[i] & 0xff; |
| cp = Character.toUpperCaseEx(cp); |
| if (!canEncode(cp)) { // not a latin1 character |
| return toUpperCaseEx(str, value, first, locale, false); |
| } |
| result[i] = (byte)cp; |
| } |
| return new String(result, LATIN1); |
| } |
| |
| private static String toUpperCaseEx(String str, byte[] value, |
| int first, Locale locale, boolean localeDependent) |
| { |
| byte[] result = StringUTF16.newBytesFor(value.length); |
| int resultOffset = 0; |
| for (int i = 0; i < first; i++) { |
| StringUTF16.putChar(result, resultOffset++, value[i] & 0xff); |
| } |
| for (int i = first; i < value.length; i++) { |
| int srcChar = value[i] & 0xff; |
| int upperChar; |
| char[] upperCharArray; |
| if (localeDependent) { |
| upperChar = ConditionalSpecialCasing.toUpperCaseEx(str, i, locale); |
| } else { |
| upperChar = Character.toUpperCaseEx(srcChar); |
| } |
| if (Character.isBmpCodePoint(upperChar)) { |
| StringUTF16.putChar(result, resultOffset++, upperChar); |
| } else { |
| if (upperChar == Character.ERROR) { |
| if (localeDependent) { |
| upperCharArray = |
| ConditionalSpecialCasing.toUpperCaseCharArray(str, i, locale); |
| } else { |
| upperCharArray = Character.toUpperCaseCharArray(srcChar); |
| } |
| } else { |
| upperCharArray = Character.toChars(upperChar); |
| } |
| /* Grow result if needed * |
| int mapLen = upperCharArray.length; |
| if (mapLen > 1) { |
| byte[] result2 = StringUTF16.newBytesFor((result.length >> 1) + mapLen - 1); |
| System.arraycopy(result, 0, result2, 0, resultOffset << 1); |
| result = result2; |
| } |
| for (int x = 0; x < mapLen; ++x) { |
| StringUTF16.putChar(result, resultOffset++, upperCharArray[x]); |
| } |
| } |
| } |
| return StringUTF16.newString(result, 0, resultOffset); |
| } |
| */ |
| // END Android-removed: Remove unused code. |
| |
| public static String trim(byte[] value) { |
| int len = value.length; |
| int st = 0; |
| while ((st < len) && ((value[st] & 0xff) <= ' ')) { |
| st++; |
| } |
| while ((st < len) && ((value[len - 1] & 0xff) <= ' ')) { |
| len--; |
| } |
| return ((st > 0) || (len < value.length)) ? |
| newString(value, st, len - st) : null; |
| } |
| |
| public static int indexOfNonWhitespace(byte[] value) { |
| int length = value.length; |
| int left = 0; |
| while (left < length) { |
| char ch = (char)(value[left] & 0xff); |
| if (ch != ' ' && ch != '\t' && !Character.isWhitespace(ch)) { |
| break; |
| } |
| left++; |
| } |
| return left; |
| } |
| |
| public static int lastIndexOfNonWhitespace(byte[] value) { |
| int length = value.length; |
| int right = length; |
| while (0 < right) { |
| char ch = (char)(value[right - 1] & 0xff); |
| if (ch != ' ' && ch != '\t' && !Character.isWhitespace(ch)) { |
| break; |
| } |
| right--; |
| } |
| return right; |
| } |
| |
| public static String strip(byte[] value) { |
| int left = indexOfNonWhitespace(value); |
| if (left == value.length) { |
| return ""; |
| } |
| int right = lastIndexOfNonWhitespace(value); |
| return ((left > 0) || (right < value.length)) ? newString(value, left, right - left) : null; |
| } |
| |
| public static String stripLeading(byte[] value) { |
| int left = indexOfNonWhitespace(value); |
| if (left == value.length) { |
| return ""; |
| } |
| return (left != 0) ? newString(value, left, value.length - left) : null; |
| } |
| |
| public static String stripTrailing(byte[] value) { |
| int right = lastIndexOfNonWhitespace(value); |
| if (right == 0) { |
| return ""; |
| } |
| return (right != value.length) ? newString(value, 0, right) : null; |
| } |
| |
| private final static class LinesSpliterator implements Spliterator<String> { |
| private byte[] value; |
| private int index; // current index, modified on advance/split |
| private final int fence; // one past last index |
| |
| LinesSpliterator(byte[] value) { |
| this(value, 0, value.length); |
| } |
| |
| LinesSpliterator(byte[] value, int start, int length) { |
| this.value = value; |
| this.index = start; |
| this.fence = start + length; |
| } |
| |
| private int indexOfLineSeparator(int start) { |
| for (int current = start; current < fence; current++) { |
| byte ch = value[current]; |
| if (ch == '\n' || ch == '\r') { |
| return current; |
| } |
| } |
| return fence; |
| } |
| |
| private int skipLineSeparator(int start) { |
| if (start < fence) { |
| if (value[start] == '\r') { |
| int next = start + 1; |
| if (next < fence && value[next] == '\n') { |
| return next + 1; |
| } |
| } |
| return start + 1; |
| } |
| return fence; |
| } |
| |
| private String next() { |
| int start = index; |
| int end = indexOfLineSeparator(start); |
| index = skipLineSeparator(end); |
| return newString(value, start, end - start); |
| } |
| |
| @Override |
| public boolean tryAdvance(Consumer<? super String> action) { |
| if (action == null) { |
| throw new NullPointerException("tryAdvance action missing"); |
| } |
| if (index != fence) { |
| action.accept(next()); |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public void forEachRemaining(Consumer<? super String> action) { |
| if (action == null) { |
| throw new NullPointerException("forEachRemaining action missing"); |
| } |
| while (index != fence) { |
| action.accept(next()); |
| } |
| } |
| |
| @Override |
| public Spliterator<String> trySplit() { |
| int half = (fence + index) >>> 1; |
| int mid = skipLineSeparator(indexOfLineSeparator(half)); |
| if (mid < fence) { |
| int start = index; |
| index = mid; |
| return new LinesSpliterator(value, start, mid - start); |
| } |
| return null; |
| } |
| |
| @Override |
| public long estimateSize() { |
| return fence - index + 1; |
| } |
| |
| @Override |
| public int characteristics() { |
| return Spliterator.ORDERED | Spliterator.IMMUTABLE | Spliterator.NONNULL; |
| } |
| } |
| |
| static Stream<String> lines(byte[] value) { |
| return StreamSupport.stream(new LinesSpliterator(value), false); |
| } |
| |
| public static void putChar(byte[] val, int index, int c) { |
| //assert (canEncode(c)); |
| val[index] = (byte)(c); |
| } |
| |
| public static char getChar(byte[] val, int index) { |
| return (char)(val[index] & 0xff); |
| } |
| |
| public static byte[] toBytes(int[] val, int off, int len) { |
| byte[] ret = new byte[len]; |
| for (int i = 0; i < len; i++) { |
| int cp = val[off++]; |
| if (!canEncode(cp)) { |
| return null; |
| } |
| ret[i] = (byte)cp; |
| } |
| return ret; |
| } |
| |
| public static byte[] toBytes(char c) { |
| return new byte[] { (byte)c }; |
| } |
| |
| public static String newString(byte[] val, int index, int len) { |
| // Android-changed: Avoid byte[] allocation. |
| // return new String(Arrays.copyOfRange(val, index, index + len), |
| // LATIN1); |
| return new String(val, /*high=*/ 0, index, len); |
| } |
| |
| public static void fillNull(byte[] val, int index, int end) { |
| Arrays.fill(val, index, end, (byte)0); |
| } |
| |
| // inflatedCopy byte[] -> char[] |
| @HotSpotIntrinsicCandidate |
| public static void inflate(byte[] src, int srcOff, char[] dst, int dstOff, int len) { |
| for (int i = 0; i < len; i++) { |
| dst[dstOff++] = (char)(src[srcOff++] & 0xff); |
| } |
| } |
| |
| // inflatedCopy byte[] -> byte[] |
| @HotSpotIntrinsicCandidate |
| public static void inflate(byte[] src, int srcOff, byte[] dst, int dstOff, int len) { |
| StringUTF16.inflate(src, srcOff, dst, dstOff, len); |
| } |
| |
| static class CharsSpliterator implements Spliterator.OfInt { |
| private final byte[] array; |
| private int index; // current index, modified on advance/split |
| private final int fence; // one past last index |
| private final int cs; |
| |
| CharsSpliterator(byte[] array, int acs) { |
| this(array, 0, array.length, acs); |
| } |
| |
| CharsSpliterator(byte[] array, int origin, int fence, int acs) { |
| this.array = array; |
| this.index = origin; |
| this.fence = fence; |
| this.cs = acs | Spliterator.ORDERED | Spliterator.SIZED |
| | Spliterator.SUBSIZED; |
| } |
| |
| @Override |
| public OfInt trySplit() { |
| int lo = index, mid = (lo + fence) >>> 1; |
| return (lo >= mid) |
| ? null |
| : new CharsSpliterator(array, lo, index = mid, cs); |
| } |
| |
| @Override |
| public void forEachRemaining(IntConsumer action) { |
| byte[] a; int i, hi; // hoist accesses and checks from loop |
| if (action == null) |
| throw new NullPointerException(); |
| if ((a = array).length >= (hi = fence) && |
| (i = index) >= 0 && i < (index = hi)) { |
| do { action.accept(a[i] & 0xff); } while (++i < hi); |
| } |
| } |
| |
| @Override |
| public boolean tryAdvance(IntConsumer action) { |
| if (action == null) |
| throw new NullPointerException(); |
| if (index >= 0 && index < fence) { |
| action.accept(array[index++] & 0xff); |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public long estimateSize() { return (long)(fence - index); } |
| |
| @Override |
| public int characteristics() { |
| return cs; |
| } |
| } |
| } |
