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-rw-r--r--intl/icu/source/common/uscript.c144
1 files changed, 144 insertions, 0 deletions
diff --git a/intl/icu/source/common/uscript.c b/intl/icu/source/common/uscript.c
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+++ b/intl/icu/source/common/uscript.c
@@ -0,0 +1,144 @@
+// Copyright (C) 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+* Copyright (C) 1997-2014, International Business Machines
+* Corporation and others. All Rights Reserved.
+**********************************************************************
+*
+* File USCRIPT.C
+*
+* Modification History:
+*
+* Date Name Description
+* 07/06/2001 Ram Creation.
+******************************************************************************
+*/
+
+#include "unicode/uchar.h"
+#include "unicode/uscript.h"
+#include "unicode/uloc.h"
+#include "cmemory.h"
+#include "cstring.h"
+
+static const UScriptCode JAPANESE[3] = { USCRIPT_KATAKANA, USCRIPT_HIRAGANA, USCRIPT_HAN };
+static const UScriptCode KOREAN[2] = { USCRIPT_HANGUL, USCRIPT_HAN };
+static const UScriptCode HAN_BOPO[2] = { USCRIPT_HAN, USCRIPT_BOPOMOFO };
+
+static int32_t
+setCodes(const UScriptCode *src, int32_t length,
+ UScriptCode *dest, int32_t capacity, UErrorCode *err) {
+ int32_t i;
+ if(U_FAILURE(*err)) { return 0; }
+ if(length > capacity) {
+ *err = U_BUFFER_OVERFLOW_ERROR;
+ return length;
+ }
+ for(i = 0; i < length; ++i) {
+ dest[i] = src[i];
+ }
+ return length;
+}
+
+static int32_t
+setOneCode(UScriptCode script, UScriptCode *scripts, int32_t capacity, UErrorCode *err) {
+ if(U_FAILURE(*err)) { return 0; }
+ if(1 > capacity) {
+ *err = U_BUFFER_OVERFLOW_ERROR;
+ return 1;
+ }
+ scripts[0] = script;
+ return 1;
+}
+
+static int32_t
+getCodesFromLocale(const char *locale,
+ UScriptCode *scripts, int32_t capacity, UErrorCode *err) {
+ UErrorCode internalErrorCode = U_ZERO_ERROR;
+ char lang[8];
+ char script[8];
+ int32_t scriptLength;
+ if(U_FAILURE(*err)) { return 0; }
+ // Multi-script languages, equivalent to the LocaleScript data
+ // that we used to load from locale resource bundles.
+ /*length = */ uloc_getLanguage(locale, lang, UPRV_LENGTHOF(lang), &internalErrorCode);
+ if(U_FAILURE(internalErrorCode) || internalErrorCode == U_STRING_NOT_TERMINATED_WARNING) {
+ return 0;
+ }
+ if(0 == uprv_strcmp(lang, "ja")) {
+ return setCodes(JAPANESE, UPRV_LENGTHOF(JAPANESE), scripts, capacity, err);
+ }
+ if(0 == uprv_strcmp(lang, "ko")) {
+ return setCodes(KOREAN, UPRV_LENGTHOF(KOREAN), scripts, capacity, err);
+ }
+ scriptLength = uloc_getScript(locale, script, UPRV_LENGTHOF(script), &internalErrorCode);
+ if(U_FAILURE(internalErrorCode) || internalErrorCode == U_STRING_NOT_TERMINATED_WARNING) {
+ return 0;
+ }
+ if(0 == uprv_strcmp(lang, "zh") && 0 == uprv_strcmp(script, "Hant")) {
+ return setCodes(HAN_BOPO, UPRV_LENGTHOF(HAN_BOPO), scripts, capacity, err);
+ }
+ // Explicit script code.
+ if(scriptLength != 0) {
+ UScriptCode scriptCode = (UScriptCode)u_getPropertyValueEnum(UCHAR_SCRIPT, script);
+ if(scriptCode != USCRIPT_INVALID_CODE) {
+ if(scriptCode == USCRIPT_SIMPLIFIED_HAN || scriptCode == USCRIPT_TRADITIONAL_HAN) {
+ scriptCode = USCRIPT_HAN;
+ }
+ return setOneCode(scriptCode, scripts, capacity, err);
+ }
+ }
+ return 0;
+}
+
+/* TODO: this is a bad API and should be deprecated, ticket #11141 */
+U_CAPI int32_t U_EXPORT2
+uscript_getCode(const char* nameOrAbbrOrLocale,
+ UScriptCode* fillIn,
+ int32_t capacity,
+ UErrorCode* err){
+ UBool triedCode;
+ char likely[ULOC_FULLNAME_CAPACITY];
+ UErrorCode internalErrorCode;
+ int32_t length;
+
+ if(U_FAILURE(*err)) {
+ return 0;
+ }
+ if(nameOrAbbrOrLocale==NULL ||
+ (fillIn == NULL ? capacity != 0 : capacity < 0)) {
+ *err = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+
+ triedCode = FALSE;
+ if(uprv_strchr(nameOrAbbrOrLocale, '-')==NULL && uprv_strchr(nameOrAbbrOrLocale, '_')==NULL ){
+ /* try long and abbreviated script names first */
+ UScriptCode code = (UScriptCode) u_getPropertyValueEnum(UCHAR_SCRIPT, nameOrAbbrOrLocale);
+ if(code!=USCRIPT_INVALID_CODE) {
+ return setOneCode(code, fillIn, capacity, err);
+ }
+ triedCode = TRUE;
+ }
+ internalErrorCode = U_ZERO_ERROR;
+ length = getCodesFromLocale(nameOrAbbrOrLocale, fillIn, capacity, err);
+ if(U_FAILURE(*err) || length != 0) {
+ return length;
+ }
+ (void)uloc_addLikelySubtags(nameOrAbbrOrLocale,
+ likely, UPRV_LENGTHOF(likely), &internalErrorCode);
+ if(U_SUCCESS(internalErrorCode) && internalErrorCode != U_STRING_NOT_TERMINATED_WARNING) {
+ length = getCodesFromLocale(likely, fillIn, capacity, err);
+ if(U_FAILURE(*err) || length != 0) {
+ return length;
+ }
+ }
+ if(!triedCode) {
+ /* still not found .. try long and abbreviated script names again */
+ UScriptCode code = (UScriptCode) u_getPropertyValueEnum(UCHAR_SCRIPT, nameOrAbbrOrLocale);
+ if(code!=USCRIPT_INVALID_CODE) {
+ return setOneCode(code, fillIn, capacity, err);
+ }
+ }
+ return 0;
+}