mirror of
https://github.com/classilla/tenfourfox.git
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87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#if(0)
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#include <CoreFoundation/CoreFoundation.h>
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#include <stdint.h>
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#include "nsDebug.h"
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#include "nscore.h"
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void
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NS_GetComplexLineBreaks(const char16_t* aText, uint32_t aLength,
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uint8_t* aBreakBefore)
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{
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NS_ASSERTION(aText, "aText shouldn't be null");
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memset(aBreakBefore, 0, aLength * sizeof(uint8_t));
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CFStringRef str = ::CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, reinterpret_cast<const UniChar*>(aText), aLength, kCFAllocatorNull);
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if (!str) {
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return;
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}
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CFStringTokenizerRef st = ::CFStringTokenizerCreate(kCFAllocatorDefault, str,
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::CFRangeMake(0, aLength),
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kCFStringTokenizerUnitLineBreak,
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nullptr);
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if (!st) {
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::CFRelease(str);
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return;
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}
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CFStringTokenizerTokenType tt = ::CFStringTokenizerAdvanceToNextToken(st);
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while (tt != kCFStringTokenizerTokenNone) {
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CFRange r = ::CFStringTokenizerGetCurrentTokenRange(st);
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if (r.location != 0) { // Ignore leading edge
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aBreakBefore[r.location] = true;
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}
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tt = CFStringTokenizerAdvanceToNextToken(st);
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}
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::CFRelease(st);
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::CFRelease(str);
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}
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#else
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// 10.4 compatible version (CFStringTokenizer only exists in 10.5), backing
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// out bug 923967. This uses the older Unicode Utilities version.
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#include "nsComplexBreaker.h"
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#include <Carbon/Carbon.h>
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void
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NS_GetComplexLineBreaks(const char16_t* aText, uint32_t aLength,
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uint8_t* aBreakBefore)
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{
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NS_ASSERTION(aText, "aText shouldn't be null");
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TextBreakLocatorRef breakLocator;
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memset(aBreakBefore, false, aLength * sizeof(uint8_t));
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OSStatus status = UCCreateTextBreakLocator(NULL, 0, kUCTextBreakLineMask,
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&breakLocator);
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if (status != noErr)
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return;
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for (UniCharArrayOffset position = 0; position < aLength;) {
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UniCharArrayOffset offset;
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status = UCFindTextBreak(breakLocator,
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kUCTextBreakLineMask,
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position == 0 ? kUCTextBreakLeadingEdgeMask :
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(kUCTextBreakLeadingEdgeMask |
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kUCTextBreakIterateMask),
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aText,
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aLength,
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position,
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&offset);
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if (status != noErr || offset >= aLength)
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break;
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aBreakBefore[offset] = true;
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position = offset;
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}
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UCDisposeTextBreakLocator(&breakLocator);
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}
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#endif
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