https://github.com/coderofsalvation/json-dsl

easily create dsl's from json by evaluating json keys and values, json decode on steroids
https://github.com/coderofsalvation/json-dsl

Last synced: about 1 year ago
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easily create dsl's from json by evaluating json keys and values, json decode on steroids

• Host: GitHub
• URL: https://github.com/coderofsalvation/json-dsl
• Owner: coderofsalvation
• License: other
• Created: 2015-10-28T08:36:24.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2020-05-28T19:09:20.000Z (about 6 years ago)
• Last Synced: 2025-04-12T20:08:54.272Z (about 1 year ago)
• Language: CoffeeScript
• Size: 4.88 KB
• Stars: 13
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

          


Generate your own minilanguages fast using json as a startingpoint.

No parsetrees, no lexical analyzers, just plain json.

# Usage

    $ npm install json-dsl

in your code

    jdsl = require('json-dsl').parse

    output = jdsl( yourjson )

# basics: xml

By default nested json is converted into xml

    {

      "div": {

        "div": {

          "div": "foo"

        }

      }

    }

gets converted into 

    
foo


# customize key evaluation

lets evaluate the keys in a different way:

    jsondsl = require('json-dsl')

    jsondsl.parseKey = function(k) {

      return k + "[%s]";

    };

    output = jdsl( yourjson )

output:

    div[div[div[foo]]]

# customize value evaluation

lets take the previous example and lets add `parseValue`

    data = { foo: "bar" }

    jsondsl.parseValue = function(v,data) {

      return data[v]

    }

    output = jdsl( yourjson, data )

    

output:

    div[div[div[bar]]]

# example: html template language

> NOTE: the dsl below is a stripped down version of the [brown](https://npmjs.org/packages/brown) template engine, a hyperminimalistic template dsl which borrows from emmet and mustache.

setup dsl:

    var jdsl = require('json-dsl');

    var zen = require('zen-coding');

  

    jdsl.parseKey = function(k) {

      return zen(k + '>{%s}');

    };

  

    jdsl.parseValue = function(v, data) {

      return data[v];

    };

lets test it:

  

    var json = {

      'div#foo.flop>fieldset>div>ul': {

        'li.one>a[href="/"]': 'one',

        'li.two>a[href="/"]': 'two'

      }

    };

  

    var data = {

      'one': 'hello',

      'two': 'world'

    };

  

    console.log(JSON.stringify(json, null, 2));

    console.log(jdsl.parse(json, data));

outputs:

    


hello

world