1/* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "LocaleToScriptMapping.h" 33 34#include <unicode/uloc.h> 35#include <wtf/text/CString.h> 36#include <wtf/text/WTFString.h> 37 38namespace WebCore { 39 40// Treat certain families of script codes as a single script for assigning a per-script font in Settings. 41static UScriptCode scriptCodeForFontSelection(UScriptCode scriptCode) 42{ 43 switch (scriptCode) { 44 case USCRIPT_HIRAGANA: 45 case USCRIPT_KATAKANA: 46 case USCRIPT_JAPANESE: 47 return USCRIPT_KATAKANA_OR_HIRAGANA; 48 case USCRIPT_KOREAN: 49 return USCRIPT_HANGUL; 50 default: 51 return scriptCode; 52 } 53} 54 55UScriptCode localeToScriptCodeForFontSelection(const String& locale) 56{ 57 if (locale.isEmpty()) 58 return USCRIPT_COMMON; 59 60 char maximizedLocale[ULOC_FULLNAME_CAPACITY]; 61 UErrorCode status = U_ZERO_ERROR; 62 uloc_addLikelySubtags(locale.utf8().data(), maximizedLocale, sizeof(maximizedLocale), &status); 63 if (U_FAILURE(status)) 64 return USCRIPT_COMMON; 65 66 char script[ULOC_SCRIPT_CAPACITY]; 67 uloc_getScript(maximizedLocale, script, sizeof(script), &status); 68 if (U_FAILURE(status)) 69 return USCRIPT_COMMON; 70 71 UScriptCode scriptCode = USCRIPT_COMMON; 72 uscript_getCode(script, &scriptCode, 1, &status); 73 // Ignore error that multiple scripts could be returned, since we only want one script. 74 if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR) 75 return USCRIPT_COMMON; 76 77 return scriptCodeForFontSelection(scriptCode); 78} 79 80UScriptCode scriptNameToCode(const String& name) 81{ 82 int32_t code = u_getPropertyValueEnum(UCHAR_SCRIPT, name.utf8().data()); 83 if (code >= 0 && code < USCRIPT_CODE_LIMIT) 84 return static_cast<UScriptCode>(code); 85 return USCRIPT_INVALID_CODE; 86} 87 88} // namespace WebCore 89