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Unified Diff: src/extensions/experimental/i18n.js

Issue 7205030: Restore accidentally deleted src/extensions/experimental/i18n.js (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 9 years, 6 months ago
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Index: src/extensions/experimental/i18n.js
===================================================================
--- src/extensions/experimental/i18n.js (revision 0)
+++ src/extensions/experimental/i18n.js (revision 0)
@@ -0,0 +1,273 @@
+// Copyright 2006-2011 the V8 project authors. 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.
+
+// TODO(cira): Rename v8Locale into LocaleInfo once we have stable API.
+/**
+ * LocaleInfo class is an aggregate class of all i18n API calls.
+ * @param {Object} settings - localeID and regionID to create LocaleInfo from.
+ * {Array.<string>|string} settings.localeID -
+ * Unicode identifier of the locale.
+ * See http://unicode.org/reports/tr35/#BCP_47_Conformance
+ * {string} settings.regionID - ISO3166 region ID with addition of
+ * invalid, undefined and reserved region codes.
+ * @constructor
+ */
+v8Locale = function(settings) {
+ native function NativeJSLocale();
+
+ // Assume user wanted to do v8Locale("sr");
+ if (typeof(settings) === "string") {
+ settings = {'localeID': settings};
+ }
+
+ var properties = NativeJSLocale(
+ v8Locale.__createSettingsOrDefault(settings, {'localeID': 'root'}));
+
+ // Keep the resolved ICU locale ID around to avoid resolving localeID to
+ // ICU locale ID every time BreakIterator, Collator and so forth are called.
+ this.__icuLocaleID = properties.icuLocaleID;
+ this.options = {'localeID': properties.localeID,
+ 'regionID': properties.regionID};
+};
+
+/**
+ * Clones existing locale with possible overrides for some of the options.
+ * @param {!Object} settings - overrides for current locale settings.
+ * @returns {Object} - new LocaleInfo object.
+ */
+v8Locale.prototype.derive = function(settings) {
+ return new v8Locale(
+ v8Locale.__createSettingsOrDefault(settings, this.options));
+};
+
+/**
+ * v8BreakIterator class implements locale aware segmenatation.
+ * It is not part of EcmaScript proposal.
+ * @param {Object} locale - locale object to pass to break
+ * iterator implementation.
+ * @param {string} type - type of segmenatation:
+ * - character
+ * - word
+ * - sentence
+ * - line
+ * @private
+ * @constructor
+ */
+v8Locale.v8BreakIterator = function(locale, type) {
+ native function NativeJSBreakIterator();
+
+ locale = v8Locale.__createLocaleOrDefault(locale);
+ // BCP47 ID would work in this case, but we use ICU locale for consistency.
+ var iterator = NativeJSBreakIterator(locale.__icuLocaleID, type);
+ iterator.type = type;
+ return iterator;
+};
+
+/**
+ * Type of the break we encountered during previous iteration.
+ * @type{Enum}
+ */
+v8Locale.v8BreakIterator.BreakType = {
+ 'unknown': -1,
+ 'none': 0,
+ 'number': 100,
+ 'word': 200,
+ 'kana': 300,
+ 'ideo': 400
+};
+
+/**
+ * Creates new v8BreakIterator based on current locale.
+ * @param {string} - type of segmentation. See constructor.
+ * @returns {Object} - new v8BreakIterator object.
+ */
+v8Locale.prototype.v8CreateBreakIterator = function(type) {
+ return new v8Locale.v8BreakIterator(this, type);
+};
+
+// TODO(jungshik): Set |collator.options| to actually recognized / resolved
+// values.
+/**
+ * Collator class implements locale-aware sort.
+ * @param {Object} locale - locale object to pass to collator implementation.
+ * @param {Object} settings - collation flags:
+ * - ignoreCase
+ * - ignoreAccents
+ * - numeric
+ * @private
+ * @constructor
+ */
+v8Locale.Collator = function(locale, settings) {
+ native function NativeJSCollator();
+
+ locale = v8Locale.__createLocaleOrDefault(locale);
+ var collator = NativeJSCollator(
+ locale.__icuLocaleID, v8Locale.__createSettingsOrDefault(settings, {}));
+ return collator;
+};
+
+/**
+ * Creates new Collator based on current locale.
+ * @param {Object} - collation flags. See constructor.
+ * @returns {Object} - new Collator object.
+ */
+v8Locale.prototype.createCollator = function(settings) {
+ return new v8Locale.Collator(this, settings);
+};
+
+/**
+ * DateTimeFormat class implements locale-aware date and time formatting.
+ * Constructor is not part of public API.
+ * @param {Object} locale - locale object to pass to formatter.
+ * @param {Object} settings - formatting flags:
+ * - skeleton
+ * - dateType
+ * - timeType
+ * - calendar
+ * @private
+ * @constructor
+ */
+v8Locale.__DateTimeFormat = function(locale, settings) {
+ native function NativeJSDateTimeFormat();
+
+ settings = v8Locale.__createSettingsOrDefault(settings, {});
+
+ var cleanSettings = {};
+ if (settings.hasOwnProperty('skeleton')) {
+ cleanSettings['skeleton'] = settings['skeleton'];
+ } else {
+ cleanSettings = {};
+ if (settings.hasOwnProperty('dateType')) {
+ var dt = settings['dateType'];
+ if (!/^short|medium|long|full$/.test(dt)) dt = 'short';
+ cleanSettings['dateType'] = dt;
+ }
+
+ if (settings.hasOwnProperty('timeType')) {
+ var tt = settings['timeType'];
+ if (!/^short|medium|long|full$/.test(tt)) tt = 'short';
+ cleanSettings['timeType'] = tt;
+ }
+ }
+
+ // Default is to show short date and time.
+ if (!cleanSettings.hasOwnProperty('skeleton') &&
+ !cleanSettings.hasOwnProperty('dateType') &&
+ !cleanSettings.hasOwnProperty('timeType')) {
+ cleanSettings = {'dateType': 'short',
+ 'timeType': 'short'};
+ }
+
+ locale = v8Locale.__createLocaleOrDefault(locale);
+ var formatter = NativeJSDateTimeFormat(locale.__icuLocaleID, cleanSettings);
+
+ // NativeJSDateTimeFormat creates formatter.options for us, we just need
+ // to append actual settings to it.
+ for (key in cleanSettings) {
+ formatter.options[key] = cleanSettings[key];
+ }
+
+ /**
+ * Clones existing date time format with possible overrides for some
+ * of the options.
+ * @param {!Object} overrideSettings - overrides for current format settings.
+ * @returns {Object} - new DateTimeFormat object.
+ * @public
+ */
+ formatter.derive = function(overrideSettings) {
+ // To remove a setting user can specify undefined as its value. We'll remove
+ // it from the map in that case.
+ for (var prop in overrideSettings) {
+ if (settings.hasOwnProperty(prop) && !overrideSettings[prop]) {
+ delete settings[prop];
+ }
+ }
+ return new v8Locale.__DateTimeFormat(
+ locale, v8Locale.__createSettingsOrDefault(overrideSettings, settings));
+ };
+
+ return formatter;
+};
+
+/**
+ * Creates new DateTimeFormat based on current locale.
+ * @param {Object} - formatting flags. See constructor.
+ * @returns {Object} - new DateTimeFormat object.
+ */
+v8Locale.prototype.createDateTimeFormat = function(settings) {
+ return new v8Locale.__DateTimeFormat(this, settings);
+};
+
+/**
+ * Merges user settings and defaults.
+ * Settings that are not of object type are rejected.
+ * Actual property values are not validated, but whitespace is trimmed if they
+ * are strings.
+ * @param {!Object} settings - user provided settings.
+ * @param {!Object} defaults - default values for this type of settings.
+ * @returns {Object} - valid settings object.
+ * @private
+ */
+v8Locale.__createSettingsOrDefault = function(settings, defaults) {
+ if (!settings || typeof(settings) !== 'object' ) {
+ return defaults;
+ }
+ for (var key in defaults) {
+ if (!settings.hasOwnProperty(key)) {
+ settings[key] = defaults[key];
+ }
+ }
+ // Clean up settings.
+ for (var key in settings) {
+ // Trim whitespace.
+ if (typeof(settings[key]) === "string") {
+ settings[key] = settings[key].trim();
+ }
+ // Remove all properties that are set to undefined/null. This allows
+ // derive method to remove a setting we don't need anymore.
+ if (!settings[key]) {
+ delete settings[key];
+ }
+ }
+
+ return settings;
+};
+
+/**
+ * If locale is valid (defined and of v8Locale type) we return it. If not
+ * we create default locale and return it.
+ * @param {!Object} locale - user provided locale.
+ * @returns {Object} - v8Locale object.
+ * @private
+ */
+v8Locale.__createLocaleOrDefault = function(locale) {
+ if (!locale || !(locale instanceof v8Locale)) {
+ return new v8Locale();
+ } else {
+ return locale;
+ }
+};
Property changes on: src/extensions/experimental/i18n.js
___________________________________________________________________
Added: svn:eol-style
+ LF
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