flutter_flutter/engine/platform/text/LocaleToScriptMapping.cpp
Eric Seidel e0fd75b5ab Make absolute and sort all Sky headers
This caused us to lose our gn check certification. :(

Turns out gn check was just ignoring all the header
paths it didn't understand and so gn check passing
for sky wasn't meaning much.  I tried to straighten
out some of the mess in this CL, but its going to take
several more rounds of massaging before gn check
passes again.  On the bright side (almost) all of
our headers are absolute now.  Turns out my script
(attached to the bug) didn't notice ../ includes
but I'll fix that in the next patch.

R=abarth@chromium.org
BUG=435361

Review URL: https://codereview.chromium.org/746023002
2014-11-20 17:42:05 -08:00

405 lines
15 KiB
C++

/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "sky/engine/config.h"
#include "sky/engine/platform/text/LocaleToScriptMapping.h"
#include "sky/engine/wtf/HashMap.h"
#include "sky/engine/wtf/HashSet.h"
#include "sky/engine/wtf/text/StringHash.h"
namespace blink {
UScriptCode scriptNameToCode(const String& scriptName)
{
struct ScriptNameCode {
const char* name;
UScriptCode code;
};
// This generally maps an ISO 15924 script code to its UScriptCode, but certain families of script codes are
// treated as a single script for assigning a per-script font in Settings. For example, "hira" is mapped to
// USCRIPT_KATAKANA_OR_HIRAGANA instead of USCRIPT_HIRAGANA, since we want all Japanese scripts to be rendered
// using the same font setting.
static const ScriptNameCode scriptNameCodeList[] = {
{ "zyyy", USCRIPT_COMMON },
{ "qaai", USCRIPT_INHERITED },
{ "arab", USCRIPT_ARABIC },
{ "armn", USCRIPT_ARMENIAN },
{ "beng", USCRIPT_BENGALI },
{ "bopo", USCRIPT_BOPOMOFO },
{ "cher", USCRIPT_CHEROKEE },
{ "copt", USCRIPT_COPTIC },
{ "cyrl", USCRIPT_CYRILLIC },
{ "dsrt", USCRIPT_DESERET },
{ "deva", USCRIPT_DEVANAGARI },
{ "ethi", USCRIPT_ETHIOPIC },
{ "geor", USCRIPT_GEORGIAN },
{ "goth", USCRIPT_GOTHIC },
{ "grek", USCRIPT_GREEK },
{ "gujr", USCRIPT_GUJARATI },
{ "guru", USCRIPT_GURMUKHI },
{ "hani", USCRIPT_HAN },
{ "hang", USCRIPT_HANGUL },
{ "hebr", USCRIPT_HEBREW },
{ "hira", USCRIPT_KATAKANA_OR_HIRAGANA },
{ "knda", USCRIPT_KANNADA },
{ "kana", USCRIPT_KATAKANA_OR_HIRAGANA },
{ "khmr", USCRIPT_KHMER },
{ "laoo", USCRIPT_LAO },
{ "latn", USCRIPT_LATIN },
{ "mlym", USCRIPT_MALAYALAM },
{ "mong", USCRIPT_MONGOLIAN },
{ "mymr", USCRIPT_MYANMAR },
{ "ogam", USCRIPT_OGHAM },
{ "ital", USCRIPT_OLD_ITALIC },
{ "orya", USCRIPT_ORIYA },
{ "runr", USCRIPT_RUNIC },
{ "sinh", USCRIPT_SINHALA },
{ "syrc", USCRIPT_SYRIAC },
{ "taml", USCRIPT_TAMIL },
{ "telu", USCRIPT_TELUGU },
{ "thaa", USCRIPT_THAANA },
{ "thai", USCRIPT_THAI },
{ "tibt", USCRIPT_TIBETAN },
{ "cans", USCRIPT_CANADIAN_ABORIGINAL },
{ "yiii", USCRIPT_YI },
{ "tglg", USCRIPT_TAGALOG },
{ "hano", USCRIPT_HANUNOO },
{ "buhd", USCRIPT_BUHID },
{ "tagb", USCRIPT_TAGBANWA },
{ "brai", USCRIPT_BRAILLE },
{ "cprt", USCRIPT_CYPRIOT },
{ "limb", USCRIPT_LIMBU },
{ "linb", USCRIPT_LINEAR_B },
{ "osma", USCRIPT_OSMANYA },
{ "shaw", USCRIPT_SHAVIAN },
{ "tale", USCRIPT_TAI_LE },
{ "ugar", USCRIPT_UGARITIC },
{ "hrkt", USCRIPT_KATAKANA_OR_HIRAGANA },
{ "bugi", USCRIPT_BUGINESE },
{ "glag", USCRIPT_GLAGOLITIC },
{ "khar", USCRIPT_KHAROSHTHI },
{ "sylo", USCRIPT_SYLOTI_NAGRI },
{ "talu", USCRIPT_NEW_TAI_LUE },
{ "tfng", USCRIPT_TIFINAGH },
{ "xpeo", USCRIPT_OLD_PERSIAN },
{ "bali", USCRIPT_BALINESE },
{ "batk", USCRIPT_BATAK },
{ "blis", USCRIPT_BLISSYMBOLS },
{ "brah", USCRIPT_BRAHMI },
{ "cham", USCRIPT_CHAM },
{ "cirt", USCRIPT_CIRTH },
{ "cyrs", USCRIPT_OLD_CHURCH_SLAVONIC_CYRILLIC },
{ "egyd", USCRIPT_DEMOTIC_EGYPTIAN },
{ "egyh", USCRIPT_HIERATIC_EGYPTIAN },
{ "egyp", USCRIPT_EGYPTIAN_HIEROGLYPHS },
{ "geok", USCRIPT_KHUTSURI },
{ "hans", USCRIPT_SIMPLIFIED_HAN },
{ "hant", USCRIPT_TRADITIONAL_HAN },
{ "hmng", USCRIPT_PAHAWH_HMONG },
{ "hung", USCRIPT_OLD_HUNGARIAN },
{ "inds", USCRIPT_HARAPPAN_INDUS },
{ "java", USCRIPT_JAVANESE },
{ "kali", USCRIPT_KAYAH_LI },
{ "latf", USCRIPT_LATIN_FRAKTUR },
{ "latg", USCRIPT_LATIN_GAELIC },
{ "lepc", USCRIPT_LEPCHA },
{ "lina", USCRIPT_LINEAR_A },
{ "mand", USCRIPT_MANDAEAN },
{ "maya", USCRIPT_MAYAN_HIEROGLYPHS },
{ "mero", USCRIPT_MEROITIC },
{ "nkoo", USCRIPT_NKO },
{ "orkh", USCRIPT_ORKHON },
{ "perm", USCRIPT_OLD_PERMIC },
{ "phag", USCRIPT_PHAGS_PA },
{ "phnx", USCRIPT_PHOENICIAN },
{ "plrd", USCRIPT_PHONETIC_POLLARD },
{ "roro", USCRIPT_RONGORONGO },
{ "sara", USCRIPT_SARATI },
{ "syre", USCRIPT_ESTRANGELO_SYRIAC },
{ "syrj", USCRIPT_WESTERN_SYRIAC },
{ "syrn", USCRIPT_EASTERN_SYRIAC },
{ "teng", USCRIPT_TENGWAR },
{ "vaii", USCRIPT_VAI },
{ "visp", USCRIPT_VISIBLE_SPEECH },
{ "xsux", USCRIPT_CUNEIFORM },
{ "jpan", USCRIPT_KATAKANA_OR_HIRAGANA },
{ "kore", USCRIPT_HANGUL },
{ "zxxx", USCRIPT_UNWRITTEN_LANGUAGES },
{ "zzzz", USCRIPT_UNKNOWN }
};
typedef HashMap<String, UScriptCode> ScriptNameCodeMap;
DEFINE_STATIC_LOCAL(ScriptNameCodeMap, scriptNameCodeMap, ());
if (scriptNameCodeMap.isEmpty()) {
for (size_t i = 0; i < sizeof(scriptNameCodeList) / sizeof(scriptNameCodeList[0]); ++i)
scriptNameCodeMap.set(scriptNameCodeList[i].name, scriptNameCodeList[i].code);
}
HashMap<String, UScriptCode>::iterator it = scriptNameCodeMap.find(scriptName.lower());
if (it != scriptNameCodeMap.end())
return it->value;
return USCRIPT_INVALID_CODE;
}
UScriptCode localeToScriptCodeForFontSelection(const String& locale)
{
struct LocaleScript {
const char* locale;
UScriptCode script;
};
static const LocaleScript localeScriptList[] = {
{ "aa", USCRIPT_LATIN },
{ "ab", USCRIPT_CYRILLIC },
{ "ady", USCRIPT_CYRILLIC },
{ "af", USCRIPT_LATIN },
{ "ak", USCRIPT_LATIN },
{ "am", USCRIPT_ETHIOPIC },
{ "ar", USCRIPT_ARABIC },
{ "as", USCRIPT_BENGALI },
{ "ast", USCRIPT_LATIN },
{ "av", USCRIPT_CYRILLIC },
{ "ay", USCRIPT_LATIN },
{ "az", USCRIPT_LATIN },
{ "ba", USCRIPT_CYRILLIC },
{ "be", USCRIPT_CYRILLIC },
{ "bg", USCRIPT_CYRILLIC },
{ "bi", USCRIPT_LATIN },
{ "bn", USCRIPT_BENGALI },
{ "bo", USCRIPT_TIBETAN },
{ "bs", USCRIPT_LATIN },
{ "ca", USCRIPT_LATIN },
{ "ce", USCRIPT_CYRILLIC },
{ "ceb", USCRIPT_LATIN },
{ "ch", USCRIPT_LATIN },
{ "chk", USCRIPT_LATIN },
{ "cs", USCRIPT_LATIN },
{ "cy", USCRIPT_LATIN },
{ "da", USCRIPT_LATIN },
{ "de", USCRIPT_LATIN },
{ "dv", USCRIPT_THAANA },
{ "dz", USCRIPT_TIBETAN },
{ "ee", USCRIPT_LATIN },
{ "efi", USCRIPT_LATIN },
{ "el", USCRIPT_GREEK },
{ "en", USCRIPT_LATIN },
{ "es", USCRIPT_LATIN },
{ "et", USCRIPT_LATIN },
{ "eu", USCRIPT_LATIN },
{ "fa", USCRIPT_ARABIC },
{ "fi", USCRIPT_LATIN },
{ "fil", USCRIPT_LATIN },
{ "fj", USCRIPT_LATIN },
{ "fo", USCRIPT_LATIN },
{ "fr", USCRIPT_LATIN },
{ "fur", USCRIPT_LATIN },
{ "fy", USCRIPT_LATIN },
{ "ga", USCRIPT_LATIN },
{ "gaa", USCRIPT_LATIN },
{ "gd", USCRIPT_LATIN },
{ "gil", USCRIPT_LATIN },
{ "gl", USCRIPT_LATIN },
{ "gn", USCRIPT_LATIN },
{ "gsw", USCRIPT_LATIN },
{ "gu", USCRIPT_GUJARATI },
{ "ha", USCRIPT_LATIN },
{ "haw", USCRIPT_LATIN },
{ "he", USCRIPT_HEBREW },
{ "hi", USCRIPT_DEVANAGARI },
{ "hil", USCRIPT_LATIN },
{ "ho", USCRIPT_LATIN },
{ "hr", USCRIPT_LATIN },
{ "ht", USCRIPT_LATIN },
{ "hu", USCRIPT_LATIN },
{ "hy", USCRIPT_ARMENIAN },
{ "id", USCRIPT_LATIN },
{ "ig", USCRIPT_LATIN },
{ "ii", USCRIPT_YI },
{ "ilo", USCRIPT_LATIN },
{ "inh", USCRIPT_CYRILLIC },
{ "is", USCRIPT_LATIN },
{ "it", USCRIPT_LATIN },
{ "iu", USCRIPT_CANADIAN_ABORIGINAL },
{ "ja", USCRIPT_KATAKANA_OR_HIRAGANA },
{ "jv", USCRIPT_LATIN },
{ "ka", USCRIPT_GEORGIAN },
{ "kaj", USCRIPT_LATIN },
{ "kam", USCRIPT_LATIN },
{ "kbd", USCRIPT_CYRILLIC },
{ "kha", USCRIPT_LATIN },
{ "kk", USCRIPT_CYRILLIC },
{ "kl", USCRIPT_LATIN },
{ "km", USCRIPT_KHMER },
{ "kn", USCRIPT_KANNADA },
{ "ko", USCRIPT_HANGUL },
{ "kok", USCRIPT_DEVANAGARI },
{ "kos", USCRIPT_LATIN },
{ "kpe", USCRIPT_LATIN },
{ "krc", USCRIPT_CYRILLIC },
{ "ks", USCRIPT_ARABIC },
{ "ku", USCRIPT_ARABIC },
{ "kum", USCRIPT_CYRILLIC },
{ "ky", USCRIPT_CYRILLIC },
{ "la", USCRIPT_LATIN },
{ "lah", USCRIPT_ARABIC },
{ "lb", USCRIPT_LATIN },
{ "lez", USCRIPT_CYRILLIC },
{ "ln", USCRIPT_LATIN },
{ "lo", USCRIPT_LAO },
{ "lt", USCRIPT_LATIN },
{ "lv", USCRIPT_LATIN },
{ "mai", USCRIPT_DEVANAGARI },
{ "mdf", USCRIPT_CYRILLIC },
{ "mg", USCRIPT_LATIN },
{ "mh", USCRIPT_LATIN },
{ "mi", USCRIPT_LATIN },
{ "mk", USCRIPT_CYRILLIC },
{ "ml", USCRIPT_MALAYALAM },
{ "mn", USCRIPT_CYRILLIC },
{ "mr", USCRIPT_DEVANAGARI },
{ "ms", USCRIPT_LATIN },
{ "mt", USCRIPT_LATIN },
{ "my", USCRIPT_MYANMAR },
{ "myv", USCRIPT_CYRILLIC },
{ "na", USCRIPT_LATIN },
{ "nb", USCRIPT_LATIN },
{ "ne", USCRIPT_DEVANAGARI },
{ "niu", USCRIPT_LATIN },
{ "nl", USCRIPT_LATIN },
{ "nn", USCRIPT_LATIN },
{ "nr", USCRIPT_LATIN },
{ "nso", USCRIPT_LATIN },
{ "ny", USCRIPT_LATIN },
{ "oc", USCRIPT_LATIN },
{ "om", USCRIPT_LATIN },
{ "or", USCRIPT_ORIYA },
{ "os", USCRIPT_CYRILLIC },
{ "pa", USCRIPT_GURMUKHI },
{ "pag", USCRIPT_LATIN },
{ "pap", USCRIPT_LATIN },
{ "pau", USCRIPT_LATIN },
{ "pl", USCRIPT_LATIN },
{ "pon", USCRIPT_LATIN },
{ "ps", USCRIPT_ARABIC },
{ "pt", USCRIPT_LATIN },
{ "qu", USCRIPT_LATIN },
{ "rm", USCRIPT_LATIN },
{ "rn", USCRIPT_LATIN },
{ "ro", USCRIPT_LATIN },
{ "ru", USCRIPT_CYRILLIC },
{ "rw", USCRIPT_LATIN },
{ "sa", USCRIPT_DEVANAGARI },
{ "sah", USCRIPT_CYRILLIC },
{ "sat", USCRIPT_LATIN },
{ "sd", USCRIPT_ARABIC },
{ "se", USCRIPT_LATIN },
{ "sg", USCRIPT_LATIN },
{ "si", USCRIPT_SINHALA },
{ "sid", USCRIPT_LATIN },
{ "sk", USCRIPT_LATIN },
{ "sl", USCRIPT_LATIN },
{ "sm", USCRIPT_LATIN },
{ "so", USCRIPT_LATIN },
{ "sq", USCRIPT_LATIN },
{ "sr", USCRIPT_CYRILLIC },
{ "ss", USCRIPT_LATIN },
{ "st", USCRIPT_LATIN },
{ "su", USCRIPT_LATIN },
{ "sv", USCRIPT_LATIN },
{ "sw", USCRIPT_LATIN },
{ "ta", USCRIPT_TAMIL },
{ "te", USCRIPT_TELUGU },
{ "tet", USCRIPT_LATIN },
{ "tg", USCRIPT_CYRILLIC },
{ "th", USCRIPT_THAI },
{ "ti", USCRIPT_ETHIOPIC },
{ "tig", USCRIPT_ETHIOPIC },
{ "tk", USCRIPT_LATIN },
{ "tkl", USCRIPT_LATIN },
{ "tl", USCRIPT_LATIN },
{ "tn", USCRIPT_LATIN },
{ "to", USCRIPT_LATIN },
{ "tpi", USCRIPT_LATIN },
{ "tr", USCRIPT_LATIN },
{ "trv", USCRIPT_LATIN },
{ "ts", USCRIPT_LATIN },
{ "tt", USCRIPT_CYRILLIC },
{ "tvl", USCRIPT_LATIN },
{ "tw", USCRIPT_LATIN },
{ "ty", USCRIPT_LATIN },
{ "tyv", USCRIPT_CYRILLIC },
{ "udm", USCRIPT_CYRILLIC },
{ "ug", USCRIPT_ARABIC },
{ "uk", USCRIPT_CYRILLIC },
{ "und", USCRIPT_LATIN },
{ "ur", USCRIPT_ARABIC },
{ "uz", USCRIPT_CYRILLIC },
{ "ve", USCRIPT_LATIN },
{ "vi", USCRIPT_LATIN },
{ "wal", USCRIPT_ETHIOPIC },
{ "war", USCRIPT_LATIN },
{ "wo", USCRIPT_LATIN },
{ "xh", USCRIPT_LATIN },
{ "yap", USCRIPT_LATIN },
{ "yo", USCRIPT_LATIN },
{ "za", USCRIPT_LATIN },
{ "zh", USCRIPT_SIMPLIFIED_HAN },
{ "zh_hk", USCRIPT_TRADITIONAL_HAN },
{ "zh_tw", USCRIPT_TRADITIONAL_HAN },
{ "zu", USCRIPT_LATIN }
};
typedef HashMap<String, UScriptCode> LocaleScriptMap;
DEFINE_STATIC_LOCAL(LocaleScriptMap, localeScriptMap, ());
if (localeScriptMap.isEmpty()) {
for (size_t i = 0; i < sizeof(localeScriptList) / sizeof(localeScriptList[0]); ++i)
localeScriptMap.set(localeScriptList[i].locale, localeScriptList[i].script);
}
String canonicalLocale = locale.lower().replace('-', '_');
while (!canonicalLocale.isEmpty()) {
HashMap<String, UScriptCode>::iterator it = localeScriptMap.find(canonicalLocale);
if (it != localeScriptMap.end())
return it->value;
size_t pos = canonicalLocale.reverseFind('_');
if (pos == kNotFound)
break;
UScriptCode code = scriptNameToCode(canonicalLocale.substring(pos + 1));
if (code != USCRIPT_INVALID_CODE && code != USCRIPT_UNKNOWN)
return code;
canonicalLocale = canonicalLocale.substring(0, pos);
}
return USCRIPT_COMMON;
}
} // namespace blink