gecko-dev/intl/lwbrk/nsCarbonBreaker.cpp
Sylvestre Ledru 265e672179 Bug 1511181 - Reformat everything to the Google coding style r=ehsan a=clang-format
# ignore-this-changeset

--HG--
extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
2018-11-30 11:46:48 +01:00

44 lines
1.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <CoreFoundation/CoreFoundation.h>
#include <stdint.h>
#include "nsDebug.h"
#include "nscore.h"
void NS_GetComplexLineBreaks(const char16_t* aText, uint32_t aLength,
uint8_t* aBreakBefore) {
NS_ASSERTION(aText, "aText shouldn't be null");
memset(aBreakBefore, 0, aLength * sizeof(uint8_t));
CFStringRef str = ::CFStringCreateWithCharactersNoCopy(
kCFAllocatorDefault, reinterpret_cast<const UniChar*>(aText), aLength,
kCFAllocatorNull);
if (!str) {
return;
}
CFStringTokenizerRef st = ::CFStringTokenizerCreate(
kCFAllocatorDefault, str, ::CFRangeMake(0, aLength),
kCFStringTokenizerUnitLineBreak, nullptr);
if (!st) {
::CFRelease(str);
return;
}
CFStringTokenizerTokenType tt = ::CFStringTokenizerAdvanceToNextToken(st);
while (tt != kCFStringTokenizerTokenNone) {
CFRange r = ::CFStringTokenizerGetCurrentTokenRange(st);
if (r.location != 0) { // Ignore leading edge
aBreakBefore[r.location] = true;
}
tt = CFStringTokenizerAdvanceToNextToken(st);
}
::CFRelease(st);
::CFRelease(str);
}