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1 change: 1 addition & 0 deletions .gitignore
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node_modules
4 changes: 4 additions & 0 deletions .travis.yml
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language: node_js
node_js:
- 0.8
- 0.10
34 changes: 34 additions & 0 deletions Gruntfile.js
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/*jslint node: true */
"use strict";

module.exports = function (grunt)
{
grunt.initConfig(
{
jslint: {
files: [ 'Gruntfile.js', 'index.js', 'test/*.js' ],
directives: {
white: true
}
},

cafemocha: {
src: 'test/*.js'
},

apidox: {
input: 'lib/qlobber.js',
output: 'README.md',
fullSourceDescription: true
}
});

grunt.loadNpmTasks('grunt-jslint');
grunt.loadNpmTasks('grunt-cafe-mocha');
grunt.loadNpmTasks('grunt-apidox');

grunt.registerTask('lint', 'jslint');
grunt.registerTask('test', 'cafemocha');
grunt.registerTask('docs', 'apidox');
grunt.registerTask('default', ['jslint', 'cafemocha']);
};
19 changes: 19 additions & 0 deletions LICENCE
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Copyright (c) 2013 David Halls <https://github.com/davedoesdev/>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
149 changes: 149 additions & 0 deletions README.md
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# qlobber

Node.js globbing for amqp-like topics.

Example:

```javascript
Qlobber = require('qlobber').Qlobber;
matcher = new Qlobber();
matcher.add('foo.*', 'it matched!', function ()
{
matcher.match('foo.bar', function (err, vals)
{
assert.deepEqual(vals, ['it matched!']);
});
});
```

The API is described [here](#tableofcontents).

qlobber is implemented using a trie, as described in the RabbitMQ blog posts [here](http://www.rabbitmq.com/blog/2010/09/14/very-fast-and-scalable-topic-routing-part-1/) and [here](http://www.rabbitmq.com/blog/2011/03/28/very-fast-and-scalable-topic-routing-part-2/).

A more advanced example using topics from the [RabbitMQ topic tutorial](http://www.rabbitmq.com/tutorials/tutorial-five-python.html):

```javascript
async.parallel(
[matcher.add.bind(matcher, '*.orange.*', 'Q1'),
matcher.add.bind(matcher, '*.*.rabbit', 'Q2'),
matcher.add.bind(matcher, 'lazy.#', 'Q2')],
async.mapSeries.bind(async,
['quick.orange.rabbit',
'lazy.orange.elephant',
'quick.orange.fox',
'lazy.brown.fox',
'lazy.pink.rabbit',
'quick.brown.fox',
'orange',
'quick.orange.male.rabbit',
'lazy.orange.male.rabbit'],
matcher.match,
function (err, vals)
{
assert.deepEqual(vals,
[['Q1', 'Q2'],
['Q1', 'Q2'],
['Q1'],
['Q2'],
['Q2'],
[],
[],
[],
['Q2']]);
}));
```

## Licence

[MIT](LICENCE)

## Tests

qlobber passes the [RabbitMQ topic tests](https://github.com/rabbitmq/rabbitmq-server/blob/master/src/rabbit_tests.erl) (I converted them from Erlang to Javascript).

To run the tests:

```javascript
grunt test
```

## Lint

```javascript
grunt lint
```

# API

_Source: [lib/qlobber.js](lib/qlobber.js)_

<a name="tableofcontents"></a>

- <a name="toc_qlobberoptions"></a>[Qlobber](#qlobberoptions)
- <a name="toc_qlobberobjectaddtopic-val-cb"></a><a name="toc_qlobberobject"></a>[QlobberObject.add](#qlobberobjectaddtopic-val-cb)
- <a name="toc_qlobberobjectremovetopic-val-cb"></a>[QlobberObject.remove](#qlobberobjectremovetopic-val-cb)
- <a name="toc_qlobberobjectmatchtopic-cb"></a>[QlobberObject.match](#qlobberobjectmatchtopic-cb)

# Qlobber([options])

> Creates a new qlobber.
**Parameters:**

- `{Object} [options]` Configures the globber. Use the following properties:


- `{String} separator` The character to use for separating words in topics. Defaults to '.'. MQTT uses '/' as the separator, for example.

- `{String} wildcard_one` The character to use for matching exactly one word in a topic. Defaults to '*'. MQTT uses '+', for example.

- `{String} wildcard_some` The character to use for matching zero or more words in a topic. Defaults to '#'. MQTT uses '#' too.

- `{String | false} compare` The function to use for sorting matches in order to remove duplicates. Defaults to lexicographical string compare. Specify `false` to turn off duplicate removal. If you store values other than strings in qlobber, pass in your own compare function.

<sub>Go: [TOC](#tableofcontents)</sub>

<a name="qlobberobject"></a>

# QlobberObject.add(topic, val, cb)

> Add a topic matcher to the qlobber.
Note you can match more than one value against a topic by calling `add` multiple times with the same topic and different values.

**Parameters:**

- `{String} topic` The topic to match against.
- `{Any} val` The value to return if the topic is matched.
- `{Function} cb` Called when the matcher has been added.

<sub>Go: [TOC](#tableofcontents) | [QlobberObject](#toc_qlobberobject)</sub>

# QlobberObject.remove(topic, val, cb)

> Remove a topic matcher from the qlobber.
**Parameters:**

- `{String} topic` The topic that's being matched against.
- `{Any} val` The value that's being matched.
- `{Function} cb` Called when the matcher has been removed.

<sub>Go: [TOC](#tableofcontents) | [QlobberObject](#toc_qlobberobject)</sub>

# QlobberObject.match(topic, cb)

> Match a topic.
**Parameters:**

- `{String} topic` The topic to match against.
- `{Function} cb` Called with two arguments when the match has completed:


- `{Any} err` `null` or an error, if one occurred.
- `{Array} vals` List of values that matched the topic. `vals` will be sorted and have duplicates removed unless you configured [Qlobber](#qlobberoptions) otherwise.

<sub>Go: [TOC](#tableofcontents) | [QlobberObject](#toc_qlobberobject)</sub>

_&mdash;generated by [apidox](https://github.com/codeactual/apidox)&mdash;_
3 changes: 3 additions & 0 deletions index.js
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/*jslint node: true*/
"use strict";
module.exports = require('./lib/qlobber');
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