Index: src/js/i18n.js |
diff --git a/src/js/i18n.js b/src/js/i18n.js |
index 011b7489af925292d841e00525d93e96600f9366..6fb2114bc584f84b0ca857400166c7cfd9b722f3 100644 |
--- a/src/js/i18n.js |
+++ b/src/js/i18n.js |
@@ -142,6 +142,13 @@ var AVAILABLE_LOCALES = { |
*/ |
var DEFAULT_ICU_LOCALE = UNDEFINED; |
+function GetDefaultICULocaleJS() { |
+ if (IS_UNDEFINED(DEFAULT_ICU_LOCALE)) { |
+ DEFAULT_ICU_LOCALE = %GetDefaultICULocale(); |
+ } |
+ return DEFAULT_ICU_LOCALE; |
+} |
+ |
/** |
* Unicode extension regular expression. |
*/ |
@@ -446,11 +453,7 @@ function lookupMatcher(service, requestedLocales) { |
} |
// Didn't find a match, return default. |
- if (IS_UNDEFINED(DEFAULT_ICU_LOCALE)) { |
- DEFAULT_ICU_LOCALE = %GetDefaultICULocale(); |
- } |
- |
- return {'locale': DEFAULT_ICU_LOCALE, 'extension': '', 'position': -1}; |
+ return {'locale': GetDefaultICULocaleJS(), 'extension': '', 'position': -1}; |
} |
@@ -720,21 +723,23 @@ function toTitleCaseTimezoneLocation(location) { |
*/ |
function canonicalizeLanguageTag(localeID) { |
// null is typeof 'object' so we have to do extra check. |
- if (typeof localeID !== 'string' && typeof localeID !== 'object' || |
+ if ((!IS_STRING(localeID) && !IS_RECEIVER(localeID)) || |
IS_NULL(localeID)) { |
throw MakeTypeError(kLanguageID); |
} |
+ // Optimize for the most common case; a language code alone in |
+ // the canonical form/lowercase (e.g. "en", "fil"). |
+ if (IS_STRING(localeID) && |
+ !IS_NULL(InternalRegExpMatch(/^[a-z]{2,3}$/, localeID))) |
Yang
2016/04/29 07:38:47
brackets
jungshik at Google
2016/04/29 18:03:23
Done.
|
+ return localeID; |
+ |
var localeString = GlobalString(localeID); |
if (isValidLanguageTag(localeString) === false) { |
throw MakeRangeError(kInvalidLanguageTag, localeString); |
} |
- // This call will strip -kn but not -kn-true extensions. |
- // ICU bug filled - http://bugs.icu-project.org/trac/ticket/9265. |
- // TODO(cira): check if -u-kn-true-kc-true-kh-true still throws after |
- // upgrade to ICU 4.9. |
var tag = %CanonicalizeLanguageTag(localeString); |
if (tag === 'invalid-tag') { |
throw MakeRangeError(kInvalidLanguageTag, localeString); |
@@ -1990,6 +1995,37 @@ function cachedOrNewService(service, locales, options, defaults) { |
return new savedObjects[service](locales, useOptions); |
} |
+function LocaleConvertCase(s, locales, isToUpper) { |
+ // ECMA 402 section 13.1.2 steps 1 through 12. |
+ var language; |
+ // Optimize for the most common two cases. initializeLocaleList() can handle |
+ // them as well, but it's rather slow accounting for over 60% of |
+ // toLocale{U,L}Case() and about 40% of toLocale{U,L}Case("<locale>"). |
+ if (IS_UNDEFINED(locales)) { |
+ language = GetDefaultICULocaleJS(); |
+ } else if (IS_STRING(locales)) { |
+ language = canonicalizeLanguageTag(locales); |
+ } else { |
+ var locales = initializeLocaleList(locales); |
+ language = locales.length > 0 ? locales[0] : GetDefaultICULocaleJS(); |
+ } |
+ |
+ // StringSplit is slwoer than this. |
Yang
2016/04/29 07:38:47
"slower"
jungshik at Google
2016/04/29 18:03:23
Done.
|
+ var pos = %_Call(StringIndexOf, language, '-'); |
+ if (pos != -1) { |
+ language = %_Call(StringSubstring, language, 0, pos); |
+ } |
+ |
+ var CUSTOM_CASE_LANGUAGES = ['az', 'el', 'lt', 'tr']; |
+ var langIndex = %_Call(ArrayIndexOf, CUSTOM_CASE_LANGUAGES, language); |
+ if (langIndex == -1) { |
+ // language-independent case conversion. |
+ return isToUpper ? %StringToUpperCaseI18N(s) : %StringToLowerCaseI18N(s); |
+ } |
+ return %StringLocaleConvertCase(s, isToUpper, |
+ CUSTOM_CASE_LANGUAGES[langIndex]); |
+} |
+ |
/** |
* Compares this and that, and returns less than 0, 0 or greater than 0 value. |
* Overrides the built-in method. |
@@ -2042,6 +2078,47 @@ OverrideFunction(GlobalString.prototype, 'normalize', function() { |
} |
); |
+/* |
+OverrideFunction(GlobalString.prototype, 'toLowerCase', function() { |
+ if (!IS_UNDEFINED(new.target)) { |
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor); |
+ } |
+ CHECK_OBJECT_COERCIBLE(this, "String.prototype.toLowerCase"); |
+ var s = TO_STRING(this); |
+ return %StringToLowerCaseI18N(s); |
+ } |
+); |
+ |
+OverrideFunction(GlobalString.prototype, 'toUpperCase', function() { |
+ if (!IS_UNDEFINED(new.target)) { |
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor); |
+ } |
+ CHECK_OBJECT_COERCIBLE(this, "String.prototype.toLowerCase"); |
+ var s = TO_STRING(this); |
+ return %StringToUpperCaseI18N(s); |
+ } |
+); |
+*/ |
+ |
+OverrideFunction(GlobalString.prototype, 'toLocaleLowerCase', function() { |
+ if (!IS_UNDEFINED(new.target)) { |
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor); |
+ } |
+ CHECK_OBJECT_COERCIBLE(this, "String.prototype.toLocaleLowerCase"); |
+ return LocaleConvertCase(TO_STRING(this), arguments[0], false); |
+ } |
+); |
+ |
+ |
+OverrideFunction(GlobalString.prototype, 'toLocaleUpperCase', function() { |
+ if (!IS_UNDEFINED(new.target)) { |
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor); |
+ } |
+ CHECK_OBJECT_COERCIBLE(this, "String.prototype.toLocaleUpperCase"); |
+ return LocaleConvertCase(TO_STRING(this), arguments[0], true); |
+ } |
+); |
+ |
/** |
* Formats a Number object (this) using locale and options values. |