HTMLP_parse()

Behavior

Case 1

When Invoking HTMLP_parse on a string that contains the following:

    <!DOCTYPE html>
    <html lang="en">
    <head>
      <meta charset="UTF-8">
      <title>My LP File</title>
    </head>
    <body>

    <script type="text/coffeescript" data-htmlp="x.coffee">
    x = 42
    </script>

    <code data-htmlp="x.coffee">
    console.log x is 42
    </code>

    <code data-htmlp="y.coffee">
    y = false
    </code>

    </body>
    </html>

The HTMLP_parse function should return:

    {
      "x.coffee" : "x = 42\nconsole.log x is 42"
      "y.coffee" : "y = false"
    }

Case 2

When Invoking HTMLP_render on a string that contains the following:

    <!DOCTYPE html>
    <html lang="en">
    <head>
      <meta charset="UTF-8">
      <title>My LP File</title>
    </head>
    <body>
      <h1>
        No file exports here :)
      </h1>
    </body>
    </html>

The HTMLP function should return:

{}

Behavior Testing Code

    ### Case 1 ###
    
    case_1_actual = htmlp_parse '<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>My LP File</title></head><body><script type="text/coffeescript" data-htmlp="x.coffee">x = 42</script><code data-htmlp="x.coffee">console.log x is 42</code><code data-htmlp="y.coffee">y = false</code></body></html>'
    
    case_1_expected = {
      "x.coffee" : "x = 42\nconsole.log x is 42"
      "y.coffee" : "y = false"
    }
    
    assert _.isEqual( case_1_actual, case_1_expected ), 'Case 1 failure'

    ### Case 2 ###

    case_2_actual = htmlp_parse '<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>My LP File</title></head><body><h1>No file exports here :)</h1></body></html>'

    case_2_expected = {}

    assert _.isEqual( case_1_actual, case_1_expected ), 'Case 2 failure'

Implementation

Import the cheerio library

    $ = require 'cheerio'

Define the data key and attribute name that we will be focussing on

      file_export_data_key = 'htmlp'
      file_export_attr = 'data-' + file_export_data_key

Make an ordered list of all the nodes that have a file export call

      exporting_tags = $ "[#{file_export_attr}]", html_input_string

Convert the node list to an array of easily digested file write instructions

      file_writes = exporting_tags.map (index, element) ->
        file_name = $(element).data file_export_data_key
        text = $(element).text()
        return {file_name : file_name, text : text}

Ensure that file_writes is a normal array (and not an "array-like object")

      file_writes = _.toArray file_writes

Build up a files object whose keys represent filepaths and whose values represent the aggregated contents of those files.

      files = {}

      _.each file_writes, (element) ->
        if _.isString files[ element.file_name ]
          files[ element.file_name ] += '\n' + element.text
        else
          files[ element.file_name ] = element.text

return the files object

      return files