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authorJonathan Kew <jfkthame@googlemail.com>2006-07-25 12:37:43 +0000
committerJonathan Kew <jfkthame@googlemail.com>2006-07-25 12:37:43 +0000
commit10c60368cd42904bd991453f02b684ebe02ef915 (patch)
treec6fb06ccf22a81c80af08f79df1b436120703de4 /Build/source/libs/icu-xetex/common/brkiter.cpp
parent4d8b2aac6036acbb6878236c27e2fb110dad8643 (diff)
adding ICU library sources used by xetex
git-svn-id: svn://tug.org/texlive/trunk@1915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/icu-xetex/common/brkiter.cpp')
-rw-r--r--Build/source/libs/icu-xetex/common/brkiter.cpp452
1 files changed, 452 insertions, 0 deletions
diff --git a/Build/source/libs/icu-xetex/common/brkiter.cpp b/Build/source/libs/icu-xetex/common/brkiter.cpp
new file mode 100644
index 00000000000..e8b10f78d27
--- /dev/null
+++ b/Build/source/libs/icu-xetex/common/brkiter.cpp
@@ -0,0 +1,452 @@
+/*
+*******************************************************************************
+* Copyright (C) 1997-2005, International Business Machines Corporation and *
+* others. All Rights Reserved. *
+*******************************************************************************
+*
+* File TXTBDRY.CPP
+*
+* Modification History:
+*
+* Date Name Description
+* 02/18/97 aliu Converted from OpenClass. Added DONE.
+* 01/13/2000 helena Added UErrorCode parameter to createXXXInstance methods.
+*****************************************************************************************
+*/
+
+// *****************************************************************************
+// This file was generated from the java source file BreakIterator.java
+// *****************************************************************************
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_BREAK_ITERATION
+
+#include "unicode/dbbi.h"
+#include "unicode/brkiter.h"
+#include "unicode/udata.h"
+#include "unicode/ures.h"
+#include "ucln_cmn.h"
+#include "cstring.h"
+#include "mutex.h"
+#include "servloc.h"
+#include "locbased.h"
+#include "uresimp.h"
+
+// *****************************************************************************
+// class BreakIterator
+// This class implements methods for finding the location of boundaries in text.
+// Instances of BreakIterator maintain a current position and scan over text
+// returning the index of characters where boundaries occur.
+// *****************************************************************************
+
+U_NAMESPACE_BEGIN
+
+// -------------------------------------
+
+BreakIterator*
+BreakIterator::buildInstance(const Locale& loc, const char *type, UBool dict, UErrorCode &status)
+{
+ char fnbuff[256];
+ char actualLocale[ULOC_FULLNAME_CAPACITY];
+ int32_t size;
+ const UChar* brkfname = NULL;
+ UResourceBundle brkRulesStack, brkNameStack;
+ UResourceBundle *brkRules = &brkRulesStack, *brkName = &brkNameStack;
+ BreakIterator *result = NULL;
+
+ if (U_FAILURE(status))
+ return NULL;
+
+ ures_initStackObject(brkRules);
+ ures_initStackObject(brkName);
+
+ // Get the locale
+ UResourceBundle *b = ures_open(NULL, loc.getName(), &status);
+
+ // Get the "boundaries" array.
+ if (U_SUCCESS(status)) {
+ brkRules = ures_getByKeyWithFallback(b, "boundaries", brkRules, &status);
+ // Get the string object naming the rules file
+ brkName = ures_getByKeyWithFallback(brkRules, type, brkName, &status);
+ // Get the actual string
+ brkfname = ures_getString(brkName, &size, &status);
+
+ // Use the string if we found it
+ if (U_SUCCESS(status) && brkfname) {
+ uprv_strncpy(actualLocale,
+ ures_getLocale(brkName, &status),
+ sizeof(actualLocale)/sizeof(actualLocale[0]));
+ u_UCharsToChars(brkfname, fnbuff, size+1);
+ }
+ }
+
+ ures_close(brkRules);
+ ures_close(brkName);
+
+ UDataMemory* file = udata_open(NULL, "brk", fnbuff, &status);
+ if (U_FAILURE(status)) {
+ ures_close(b);
+ return NULL;
+ }
+
+ // We found the break rules; now see if a dictionary is needed
+ if (dict)
+ {
+ UErrorCode localStatus = U_ZERO_ERROR;
+ brkName = &brkNameStack;
+ ures_initStackObject(brkName);
+ brkName = ures_getByKeyWithFallback(b, "BreakDictionaryData", brkName, &localStatus);
+#if 0
+ if (U_SUCCESS(localStatus)) {
+ brkfname = ures_getString(&brkname, &size, &localStatus);
+ }
+#endif
+ if (U_SUCCESS(localStatus)) {
+#if 0
+ u_UCharsToChars(brkfname, fnbuff, size);
+ fnbuff[size] = '\0';
+#endif
+ result = new DictionaryBasedBreakIterator(file, "thaidict.brk", status);
+ }
+ ures_close(brkName);
+ }
+
+ // If there is still no result but we haven't had an error, no dictionary,
+ // so make a non-dictionary break iterator
+ if (U_SUCCESS(status) && result == NULL) {
+ result = new RuleBasedBreakIterator(file, status);
+ }
+
+ // If there is a result, set the valid locale and actual locale
+ if (U_SUCCESS(status) && result != NULL) {
+ U_LOCALE_BASED(locBased, *result);
+ locBased.setLocaleIDs(ures_getLocaleByType(b, ULOC_VALID_LOCALE, &status), actualLocale);
+ }
+
+ ures_close(b);
+
+ if (U_FAILURE(status) && result != NULL) { // Sometimes redundant check, but simple
+ delete result;
+ return NULL;
+ }
+
+ if (result == NULL) {
+ udata_close(file);
+ if (U_SUCCESS(status)) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ }
+ }
+
+ return result;
+}
+
+// Creates a break iterator for word breaks.
+BreakIterator* U_EXPORT2
+BreakIterator::createWordInstance(const Locale& key, UErrorCode& status)
+{
+ return createInstance(key, UBRK_WORD, status);
+}
+
+// -------------------------------------
+
+// Creates a break iterator for line breaks.
+BreakIterator* U_EXPORT2
+BreakIterator::createLineInstance(const Locale& key, UErrorCode& status)
+{
+ return createInstance(key, UBRK_LINE, status);
+}
+
+// -------------------------------------
+
+// Creates a break iterator for character breaks.
+BreakIterator* U_EXPORT2
+BreakIterator::createCharacterInstance(const Locale& key, UErrorCode& status)
+{
+ return createInstance(key, UBRK_CHARACTER, status);
+}
+
+// -------------------------------------
+
+// Creates a break iterator for sentence breaks.
+BreakIterator* U_EXPORT2
+BreakIterator::createSentenceInstance(const Locale& key, UErrorCode& status)
+{
+ return createInstance(key, UBRK_SENTENCE, status);
+}
+
+// -------------------------------------
+
+// Creates a break iterator for title casing breaks.
+BreakIterator* U_EXPORT2
+BreakIterator::createTitleInstance(const Locale& key, UErrorCode& status)
+{
+ return createInstance(key, UBRK_TITLE, status);
+}
+
+// -------------------------------------
+
+// Gets all the available locales that has localized text boundary data.
+const Locale* U_EXPORT2
+BreakIterator::getAvailableLocales(int32_t& count)
+{
+ return Locale::getAvailableLocales(count);
+}
+
+// -------------------------------------
+// Gets the objectLocale display name in the default locale language.
+UnicodeString& U_EXPORT2
+BreakIterator::getDisplayName(const Locale& objectLocale,
+ UnicodeString& name)
+{
+ return objectLocale.getDisplayName(name);
+}
+
+// -------------------------------------
+// Gets the objectLocale display name in the displayLocale language.
+UnicodeString& U_EXPORT2
+BreakIterator::getDisplayName(const Locale& objectLocale,
+ const Locale& displayLocale,
+ UnicodeString& name)
+{
+ return objectLocale.getDisplayName(displayLocale, name);
+}
+
+// ------------------------------------------
+//
+// Default constructor and destructor
+//
+//-------------------------------------------
+
+BreakIterator::BreakIterator()
+{
+ fBufferClone = FALSE;
+ *validLocale = *actualLocale = 0;
+}
+
+BreakIterator::~BreakIterator()
+{
+}
+
+// ------------------------------------------
+//
+// Registration
+//
+//-------------------------------------------
+#if !UCONFIG_NO_SERVICE
+
+static ICULocaleService* gService = NULL;
+
+// -------------------------------------
+
+class ICUBreakIteratorFactory : public ICUResourceBundleFactory {
+protected:
+ virtual UObject* handleCreate(const Locale& loc, int32_t kind, const ICUService* /*service*/, UErrorCode& status) const {
+ return BreakIterator::makeInstance(loc, kind, status);
+ }
+};
+
+// -------------------------------------
+
+class ICUBreakIteratorService : public ICULocaleService {
+public:
+ ICUBreakIteratorService()
+ : ICULocaleService(UNICODE_STRING("Break Iterator", 14))
+ {
+ UErrorCode status = U_ZERO_ERROR;
+ registerFactory(new ICUBreakIteratorFactory(), status);
+ }
+
+ virtual UObject* cloneInstance(UObject* instance) const {
+ return ((BreakIterator*)instance)->clone();
+ }
+
+ virtual UObject* handleDefault(const ICUServiceKey& key, UnicodeString* /*actualID*/, UErrorCode& status) const {
+ LocaleKey& lkey = (LocaleKey&)key;
+ int32_t kind = lkey.kind();
+ Locale loc;
+ lkey.currentLocale(loc);
+ return BreakIterator::makeInstance(loc, kind, status);
+ }
+
+ virtual UBool isDefault() const {
+ return countFactories() == 1;
+ }
+};
+
+// -------------------------------------
+
+U_NAMESPACE_END
+
+// defined in ucln_cmn.h
+
+/**
+ * Release all static memory held by breakiterator.
+ */
+U_CDECL_BEGIN
+static UBool U_CALLCONV breakiterator_cleanup(void) {
+#if !UCONFIG_NO_SERVICE
+ if (gService) {
+ delete gService;
+ gService = NULL;
+ }
+#endif
+ return TRUE;
+}
+U_CDECL_END
+U_NAMESPACE_BEGIN
+
+static ICULocaleService*
+getService(void)
+{
+ UBool needsInit;
+ umtx_lock(NULL);
+ needsInit = (UBool)(gService == NULL);
+ umtx_unlock(NULL);
+
+ if (needsInit) {
+ ICULocaleService *tService = new ICUBreakIteratorService();
+ umtx_lock(NULL);
+ if (gService == NULL) {
+ gService = tService;
+ tService = NULL;
+ ucln_common_registerCleanup(UCLN_COMMON_BREAKITERATOR, breakiterator_cleanup);
+ }
+ umtx_unlock(NULL);
+ delete tService;
+ }
+ return gService;
+}
+
+// -------------------------------------
+
+static UBool
+hasService(void)
+{
+ Mutex mutex;
+ return gService != NULL;
+}
+
+// -------------------------------------
+
+URegistryKey U_EXPORT2
+BreakIterator::registerInstance(BreakIterator* toAdopt, const Locale& locale, UBreakIteratorType kind, UErrorCode& status)
+{
+ return getService()->registerInstance(toAdopt, locale, kind, status);
+}
+
+// -------------------------------------
+
+UBool U_EXPORT2
+BreakIterator::unregister(URegistryKey key, UErrorCode& status)
+{
+ if (U_SUCCESS(status)) {
+ if (hasService()) {
+ return gService->unregister(key, status);
+ }
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+ return FALSE;
+}
+
+// -------------------------------------
+
+StringEnumeration* U_EXPORT2
+BreakIterator::getAvailableLocales(void)
+{
+ return getService()->getAvailableLocales();
+}
+#endif /* UCONFIG_NO_SERVICE */
+
+// -------------------------------------
+
+BreakIterator*
+BreakIterator::createInstance(const Locale& loc, UBreakIteratorType kind, UErrorCode& status)
+{
+ if (U_FAILURE(status)) {
+ return NULL;
+ }
+
+ u_init(&status);
+#if !UCONFIG_NO_SERVICE
+ if (hasService()) {
+ Locale actualLoc("");
+ BreakIterator *result = (BreakIterator*)gService->get(loc, kind, &actualLoc, status);
+ // TODO: The way the service code works in ICU 2.8 is that if
+ // there is a real registered break iterator, the actualLoc
+ // will be populated, but if the handleDefault path is taken
+ // (because nothing is registered that can handle the
+ // requested locale) then the actualLoc comes back empty. In
+ // that case, the returned object already has its actual/valid
+ // locale data populated (by makeInstance, which is what
+ // handleDefault calls), so we don't touch it. YES, A COMMENT
+ // THIS LONG is a sign of bad code -- so the action item is to
+ // revisit this in ICU 3.0 and clean it up/fix it/remove it.
+ if (U_SUCCESS(status) && (result != NULL) && *actualLoc.getName() != 0) {
+ U_LOCALE_BASED(locBased, *result);
+ locBased.setLocaleIDs(actualLoc.getName(), actualLoc.getName());
+ }
+ return result;
+ }
+ else
+#endif
+ {
+ return makeInstance(loc, kind, status);
+ }
+}
+
+// -------------------------------------
+
+BreakIterator*
+BreakIterator::makeInstance(const Locale& loc, int32_t kind, UErrorCode& status)
+{
+
+ if (U_FAILURE(status)) {
+ return NULL;
+ }
+
+ BreakIterator *result = NULL;
+ switch (kind) {
+ case UBRK_CHARACTER:
+ result = BreakIterator::buildInstance(loc, "grapheme", FALSE, status);
+ break;
+ case UBRK_WORD:
+ result = BreakIterator::buildInstance(loc, "word", TRUE, status);
+ break;
+ case UBRK_LINE:
+ result = BreakIterator::buildInstance(loc, "line", TRUE, status);
+ break;
+ case UBRK_SENTENCE:
+ result = BreakIterator::buildInstance(loc, "sentence", FALSE, status);
+ break;
+ case UBRK_TITLE:
+ result = BreakIterator::buildInstance(loc, "title", FALSE, status);
+ break;
+ default:
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+
+ if (U_FAILURE(status)) {
+ return NULL;
+ }
+
+ return result;
+}
+
+Locale
+BreakIterator::getLocale(ULocDataLocaleType type, UErrorCode& status) const {
+ U_LOCALE_BASED(locBased, *this);
+ return locBased.getLocale(type, status);
+}
+
+const char *
+BreakIterator::getLocaleID(ULocDataLocaleType type, UErrorCode& status) const {
+ U_LOCALE_BASED(locBased, *this);
+ return locBased.getLocaleID(type, status);
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_BREAK_ITERATION */
+
+//eof