Reamde

Strips javascript code blocks out of README (or any other markdown) files and converts them into function objects.

Examples

Basic

var fs       = require('fs')
  , reamde   = require('reamde')
  , examples = reamde(fs.readFileSync('./README.md', 'utf-8'))
  ;

console.log(examples);
// -> outputs list of function objects

File README.md contains following:

### Basic:

```javascript
var fs       = require('fs')
  , reamde   = require('reamde')
  , examples = reamde(fs.readFileSync('./README.md', 'utf-8'))
  ;

console.log(examples);
// -> outputs list of function objects

```

Non-Runnable Example

$ echo "This code block won't be converted into a function"
This code block won't be converted into a function
$

File README.md contains following:

### Not runnable example:

```
$ echo "This code block won't be converted into a function"
This code block won't be converted into a function
$
```

Replacements

Reamde accepts list of pattern-replacement pairs that will be converted into global RegExps and run against function body. Replacement could be string or object, in the latter case randomly generated id will be used as replacement within function body and the object will be passed as function call argument.

var fs      = require('fs')
  , reamde  = require('reamde')
  , content = fs.readFileSync('./README.md', 'utf-8')
  , examples
  ;

examples = reamde(content, {replace:
{
  'require(\'reamde\')' : reamde,
  'console.log('        : 'callback('
}});

console.log(examples);
// -> outputs list of function objects

Runtime Arguments

Also Reamde accepts array of runtime-populated arguments, which will be listed after replacement referenced arguments.

var fs      = require('fs')
  , reamde  = require('reamde')
  , content = fs.readFileSync('./README.md', 'utf-8')
  , examples
  ;

function customLog(data)
{
  console.log({'data': data});
}

examples = reamde(content, {runtime: ['console'], replace: {'\'reamde\'': '\'./\''}});

// run first example with custom object,
// to get assert call instead of console.log
examples[0]({log: customLog});

Require Mapping

Allows to substitute required modules from example with custom functions. Each mapping member should be a function that returns required module or its substitute. Optionally accepts require function as first argument, in case you have provided custom require for the examples.

var fs      = require('fs')
  , reamde  = require('reamde')
  , content = fs.readFileSync('./README.md', 'utf-8')
  , examples
  , options
  ;

// prepare option
options =
{
  mapping: {'reamde': function(require) { return require('./'); }}
};

examples = reamde(content, options);

console.log(examples);

TODO

• Don't strip 4+ spaces indentation with runnable examples.

License

Licensed under the MIT license.