Michael Fabian 'Xaymar' Dirks
53 lines
3.2 KiB
Markdown
53 lines
3.2 KiB
Markdown
# I18n (JavaScript)
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Very simple JavaScript library for handling translations. Supports Node.js, Electron and other JavaScript based code runners.
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# Features:
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* Simple modern API with Promises and full Documentation.
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* Support for languages with more than one base language and per language base language overrides.
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* Cached translation chains for quick and recursion free key lookups.
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# Maintenance, Donations, etc.
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This codes maintenance is funded through [Patreon](https://www.patreon.com/Xaymar). If you think this code is useful to you, consider donating a few bucks.
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# License
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Licensed under Affero GNU GPLv3. See license.txt for more information.
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# Documentation
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`i18n.js` is fully documented using JSDoc, a format IDEs should be able to display. If in any case your IDE is not showing this information, your first reference should be `i18n.js`, not this readme.
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### I18n
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The class that contains all the translation data.
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##### constructor(string defaultLanguage, string baseLanguageKey = '\_base')
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Creates a new I18n object when called with `new I18n('mylanguage')`. Will set up internal structures and variables for later use. Throws exceptions.
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##### bool hasLanguage(string language)
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Check if a language is known to this I18n object. Returns true if known. Throws exceptions.
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##### createLanguage(string language)
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Create a new empty language, or replaces a loaded one with an empty one. Throws exceptions.
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##### Promise(string) loadLanguage(string language, File|Blob|object|string data, string encoding = 'utf-8')
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Load a language from a File, Blob, object or string as JSON data, and store it as the language. Returns a Promise, which will resolve once it is done loading and parsing and the result will contain the loaded language name. Throws exceptions.
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##### Promise(string) saveLanguage(string language)
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Save a language to a string as JSON data. Returns a Promise which will resolve with the JSON data string once done. Modifying the language before the returned Promise is done can result in corrupt data. Throws exceptions.
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##### destroyLanguage(string language)
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Destroy a language, thus clearing any references to data in it. Throws exceptions.
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##### bool clearKey(string language, string key)
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Remove a key from a language. Returns true if the key was removed. Throws exceptions.
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##### bool setKey(string language, string key, any value, bool force = true)
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Set a key in a language to a new value, optionally overwriting the previous content (defaults to true). Returns true if successful. Throws exceptions.
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##### any getKey(string language, string key)
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Get the value of a key in a language. Returns the value of the key if known, otherwise throws an exception.
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##### string translate(string key, string language)
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Translate a given key to the language selected. Returns the translated string or the original key if it was not found. Throws exceptions.
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##### Promise domTranslate(string language, string property = 'data-i18n', function resolver = string function(string language, string key, Node element), function applier = bool function(string language, string key, string translated, Node element))
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Automatically translate all elements in the current DOM which have the attribute `property`. Returns a Promise which resolves when the translation is complete. Throws exceptions.
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