TextBreakIteratorInternalICUCocoa.cpp [plain text]
#include "config.h"
#include "TextBreakIteratorInternalICU.h"
#include "TextBreakIterator.h"
#include <wtf/RetainPtr.h>
namespace WTF {
static Variant<TextBreakIteratorICU, TextBreakIteratorPlatform> mapModeToBackingIterator(StringView string, TextBreakIterator::Mode mode, const AtomicString& locale)
{
switch (mode) {
case TextBreakIterator::Mode::Line:
return TextBreakIteratorICU(string, TextBreakIteratorICU::Mode::Line, locale.string().utf8().data());
case TextBreakIterator::Mode::Caret:
return TextBreakIteratorCF(string, TextBreakIteratorCF::Mode::Caret);
case TextBreakIterator::Mode::Delete:
return TextBreakIteratorCF(string, TextBreakIteratorCF::Mode::Delete);
}
}
TextBreakIterator::TextBreakIterator(StringView string, Mode mode, const AtomicString& locale)
: m_backing(mapModeToBackingIterator(string, mode, locale))
, m_mode(mode)
, m_locale(locale)
{
}
static const int maxLocaleStringLength = 32;
static inline RetainPtr<CFStringRef> textBreakLocalePreference()
{
RetainPtr<CFPropertyListRef> locale = adoptCF(CFPreferencesCopyValue(CFSTR("AppleTextBreakLocale"),
kCFPreferencesAnyApplication, kCFPreferencesCurrentUser, kCFPreferencesAnyHost));
if (!locale || CFGetTypeID(locale.get()) != CFStringGetTypeID())
return nullptr;
return static_cast<CFStringRef>(locale.get());
}
static RetainPtr<CFStringRef> topLanguagePreference()
{
RetainPtr<CFArrayRef> languagesArray = adoptCF(CFLocaleCopyPreferredLanguages());
if (!languagesArray)
return nullptr;
if (!CFArrayGetCount(languagesArray.get()))
return nullptr;
return static_cast<CFStringRef>(CFArrayGetValueAtIndex(languagesArray.get(), 0));
}
static void getLocale(CFStringRef locale, char localeStringBuffer[maxLocaleStringLength])
{
localeStringBuffer[0] = 0;
if (!locale)
return;
CFStringGetCString(locale, localeStringBuffer, maxLocaleStringLength, kCFStringEncodingASCII);
}
static void getSearchLocale(char localeStringBuffer[maxLocaleStringLength])
{
getLocale(topLanguagePreference().get(), localeStringBuffer);
}
const char* currentSearchLocaleID()
{
static char localeStringBuffer[maxLocaleStringLength];
static bool gotSearchLocale = false;
if (!gotSearchLocale) {
getSearchLocale(localeStringBuffer);
gotSearchLocale = true;
}
return localeStringBuffer;
}
static void getTextBreakLocale(char localeStringBuffer[maxLocaleStringLength])
{
RetainPtr<CFStringRef> locale = textBreakLocalePreference();
if (locale) {
if (RetainPtr<CFStringRef> canonicalLocale = adoptCF(CFLocaleCreateCanonicalLanguageIdentifierFromString(kCFAllocatorDefault, locale.get())))
locale = canonicalLocale;
} else
locale = topLanguagePreference();
getLocale(locale.get(), localeStringBuffer);
}
const char* currentTextBreakLocaleID()
{
static char localeStringBuffer[maxLocaleStringLength];
static bool gotTextBreakLocale = false;
if (!gotTextBreakLocale) {
getTextBreakLocale(localeStringBuffer);
gotTextBreakLocale = true;
}
return localeStringBuffer;
}
}