165 lines
4.4 KiB
Markdown
165 lines
4.4 KiB
Markdown
# pofile - gettext .po parsing for JavaScript
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> Parse and serialize Gettext PO files.
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[](https://travis-ci.org/rubenv/pofile)
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## Usage
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Add pofile to your project:
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### Installation (Node.JS, browser via Browserified)
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```
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npm install --save pofile
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```
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Reference it in your code:
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```js
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var PO = require('pofile');
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```
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### Installation (via bower)
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```
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bower install --save pofile
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```
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Add it to your HTML file:
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```html
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<script src="bower_components/pofile/dist/pofile.js"></script>
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```
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Reference it in your code:
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```js
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var PO = require('pofile');
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```
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### Loading and parsing
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You can create a new empty PO file by using the class:
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```js
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var po = new PO();
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```
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Or by loading a file (Node.JS only):
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```js
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PO.load('text.po', function (err, po) {
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// Handle err if needed
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// Do things with po
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});
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```
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Or by parsing a string:
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```js
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var po = PO.parse(myString);
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```
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### The PO class
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The `PO` class exposes three members:
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* `comments`: An array of comments (found at the header of the file).
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* `headers`: A dictionary of the headers.
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* `items`: An array of `PO.Item` objects, each of which represents a string
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from the gettext catalog.
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There are two methods available:
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* `save`: Accepts a filename and callback, writes the po file to disk.
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```js
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po.save('out.po', function (err) {
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// Handle err if needed
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});
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```
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* `toString`: Serializes the po file to a string.
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### The PO.Item class
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The `PO` class exposes the following members:
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* `msgid`: The message id.
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* `msgid_plural`: The plural message id (null if absent).
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* `msgstr`: An array of translated strings. Items that have no plural msgid
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only have one element in this array.
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* `references`: An array of reference strings.
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* `comments`: An array of string comments.
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* `flags`: A dictionary of the string flags. Each flag is mapped to a key with
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value true. For instance, a string with the fuzzy flag set will have
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`item.flags.fuzzy == true`.
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* `msgctxt`: context of the message, an arbitrary string, can be used for disambiguation
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## Contributing
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In lieu of a formal styleguide, take care to maintain the existing coding
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style. Add unit tests for any new or changed functionality. Lint and test your
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code using [Grunt](http://gruntjs.com/).
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## Credits
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Originally based on node-po (written by Michael Holly). Rebranded because
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node-po is unmaintained and because this library is no longer limited to
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Node.JS: it works in the browser too.
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### Changes compared to node-po
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* Proper handling of async methods that won't crash your Node.JS process when
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something goes wrong.
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* Support for parsing string flags (e.g. fuzzy).
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* A test suite.
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* Browser support (through Browserified and bower).
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### Migrating from node-po
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You'll need to update the module reference: `require('pofile')` instead of
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`require('node-po')`.
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At the initial release, node-po and pofile have identical APIs, with one small
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exception: the `save` and `load` methods now take a callback that has an `err`
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parameter: `(err)` for `save` and `(err, po)` for `load`. This is similar to
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Node.JS conventions.
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Change code such as:
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```js
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PO.load('text.po', function (po) {
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```
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To:
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```js
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PO.load('text.po', function (err, po) {
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// Handle err if needed
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```
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## License
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(The MIT License)
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Copyright (C) 2013-2014 by Ruben Vermeersch <ruben@rocketeer.be>
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Copyright (C) 2012 by Michael Holly
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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