clean-html

HTML cleaner and beautifier

Do you have crappy HTML? I do!

<table width="100%" border="0" cellspacing="0" cellpadding="0">
        <tr>
          <td height="31"><b>Currently we have these articles available:</b>

        <blockquote>
            <!-- List articles -->
              <p><a href="foo.html">The History of Foo</a><br />    
                An <span color="red">informative</span> piece  of <FONT FACE="ARIAL">information</FONT>.</p>
              <p><a href="bar.html">A Horse Walked Into a Bar</a><br/> The bartender said
                "Why the long face?"</p>
	</blockquote>
          </td>
        </tr>
      </table>

Just look at those blank lines and random line breaks, trailing spaces, mixed tabs, deprecated tags - it's outrageous!

Let's clean it up...

$ npm install clean-html

var cleaner = require('clean-html'),
    fs = require('fs'),
    file = process.argv[2];

fs.readFile(file, 'utf-8', function (err, data) {
    process.stdout.write(cleaner.clean(data) + '\n');
});

Sanity restored!

<table>
  <tr>
    <td>
      <b>Currently we have these articles available:</b>
      <blockquote>
        <!-- List articles -->
        <p>
          <a href="foo.html">The History of Foo</a><br>
          An <span>informative</span> piece of information.
        </p>
        <p>
          <a href="bar.html">A Horse Walked Into a Bar</a><br>
          The bartender said "Why the long face?"
        </p>
      </blockquote>
    </td>
  </tr>
</table>

If you like, you can even close the empty tags, lose the comments and get rid of that nasty presentational markup:

var options = {
    'close-empty-tags': true,
    'remove-comments': true,
    'add-tags-to-remove': ['table', 'tr', 'td', 'blockquote']
};

process.stdout.write(cleaner.clean(data, options) + '\n');

Voila!

<b>Currently we have these articles available:</b>
<p>
  <a href="foo.html">The History of Foo</a><br/>
  An <span>informative</span> piece of information.
</p>
<p>
  <a href="bar.html">A Horse Walked Into a Bar</a><br/>
  The bartender said "Why the long face?"
</p>

Options

attr-to-remove

Attributes to remove from markup.

Type: Array
Default: ['align', 'valign', 'bgcolor', 'color', 'width', 'height', 'border', 'cellpadding', 'cellspacing']

block-tags

Block level element tags. Line breaks are added before and after, and nested content is indented. Note: this option has no effect unless pretty is set to true.

Type: Array
Default: ['div', 'p', 'table', 'tr', 'td', 'blockquote', 'hr']

break-after-br

Adds line breaks after br tags. Note: this option has no effect unless pretty is set to true.

Type: Boolean
Default: true

close-empty-tags

If set to true, adds trailing slashes to empty tags. Otherwise removes trailing slashes.

Type: Boolean
Default: false

empty-tags

Empty element tags.

Type: Array
Default: ['br', 'hr', 'img']

indent

The string to use for indentation. e.g., a tab character or one or more spaces. Note: this option has no effect unless pretty is set to true.

Type: String
Default: ' ' (two spaces)

pretty

Pretty prints the output by adding line breaks and indentation.

Type: Boolean
Default: true

remove-comments

Removes comments.

Type: Boolean
Default: false

tags-to-remove

Tags to remove from markup.

Type: Array
Default: ['font']

Adding values to option lists

These options are added for your convenience.

add-attr-to-remove

Additional attributes to remove from markup.

Type: Array
Default: null

add-block-tags

Additional block level element tags.

Type: Array
Default: null

add-empty-tags

Additional empty element tags.

Type: Array
Default: null

add-tags-to-remove

Additional tags to remove from markup.

Type: Array
Default: null