boris

Boris

Boris, a pure javascript parser for the Redis serialization protocol RESP.

Boris is able to parse all kinds of Redis replies, also deeply nested multi-bulk replies.

Install

$ npm install boris [-g]
// clone repo
$ git clone [e-mail]:rootslab/boris.git

require

var Boris = require( 'boris' );

See examples.

Run Tests

$ cd boris/
$ npm test

Constructor

Create an instance.

var b = Boris()
// or
var b = new Boris()

Options

Default options are listed.

opt = {
    /*
     * For default, the parser returns Buffers,
     */
    return_buffers : true
}

Properties

WARNING: Don't mess with these properties.

/*
 * Protocol rules: bulk, multibulk, status, integer, error.
 */
Boris.rules : Object
 
/*
 * Current rule in execution.
 */
Boris.crule : Rule
 
/*
 * Current parser data.
 */
Boris.cdata : Buffer
 
/*
 * Boolean to signal that data is fragmented,
 * then another chunk is expected.
 */
Boris.mchk : Boolean
 
/*
 * Current parser position in the data.
 */
Boris.cpos : Number
 
/*
 * Current parser stack for multibulk replies.
 */
Boris.peela : Peela

Methods

Arguments within [ ] are optional.

/*
 * parse a chunk of data.
 */
Boris#parse( Buffer data ) : undefined
 
/*
 * reset parser state.
 */
Boris#reset() : undefined
 

Events

/*
 * The current executing rule has found a result.
 * The convert function argument is an utility that
 * scans an array and turns all Buffers into Strings.
 *
 * NOTE: the boolean 'isError' signals a Redis error reply,
 * not a runtime Error.
 */
Boris.on( 'match', function ( Boolean isError, Array result, Function convert ) { .. } )
 
/*
 * A parse error occurred, the parser wasn't able to recognize
 * the current control char.
 *
 * NOTE: on error, parser state ( stack, rules ) will be reset.
 */
Boris.on( 'error', function ( String emsg, Buffer data ) { .. } )
 
/*
 * NOTE: events below are disabled for perfomance reasons.
 * If you need them, decomment statements in the code.
 */
 
/*
 * the current executing rule needs further data to continue.
 */
Boris.on( 'miss', function ( Rule rule, Number position ) { .. } )
 
/*
 * Data was totally parsed.
 */
Boris.on( 'end', function () { .. } )
 

---

MIT License

Copyright (c) 2013 < Guglielmo Ferri : [e-mail] >

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.