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Readme.md

YAML2

YAML2 is a fork of JS-YAML which adds functionality to get an abstract syntax tree out of a YAML string.

CommonJS JavaScript YAML parser, fast and tiny. Although this implementation does not currently support the entire YAML specification, feel free to fork the project and submit a patch :)

Usage

Get JavaScript object out of a YAML string

require('yaml2').eval(string_of_yaml)

Get Abstract Syntax Tree(AST) out of a YAML string

require('yaml2').ast(string_of_yaml)

Currently Supports

  • Comments
  • Sequences (arrays)
  • Maps (hashes)
  • Inline sequences
  • Inline maps
  • Nesting
  • Primitive scalars (integers, floats, booleans, etc)
  • Extended bools (enabled, disabled, yes, no, on, off, true, false)

Installation

Via NPM

$ npm install yaml2

Via Bower

$ bower install yaml_2

Testing

Run:

$ npm test

Known bugs and missing features

  • Inline commnets: key: value # this is value
  • Inline hash with key quoted: hash: {"me": 1}

License

(The MIT License)

Copyright (c) 2009 TJ Holowaychuk tj@vision-media.ca

Copyright (c) 2014 Mohsen Azimi(Apigee) mazimi@apigee.com

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.

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YAML to JavaScript and annotated AST

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