Class: Emcee::Compressors::HtmlCompressor

Inherits:
Object
  • Object
show all
Defined in:
lib/emcee/compressors/html_compressor.rb

Overview

HtmlCompressor is our basic implementation of an html minifier. For sprockets to use it, it must have a compress method that only accepts a string and returns the compressed output.

Our implementation only strips out html and javascript comments, and removes blank lines.

Constant Summary collapse

HTML_COMMENTS =

Match html comments.

<!--
Comments
-->

/\<!\s*--(?:.*?)(?:--\s*\>)/m
JS_MULTI_COMMENTS =

Match multi-line javascript/css comments.

/*
Comments
*/

/\/\*(?:.*?)\*\//m
JS_COMMENTS =

Match single-line javascript comments.

// Comments

This does not have the /m modifier, because we only want it to match a single line at a time.

/\/\/.*$/
BLANK_LINES =

Match blank lines.

/^[\s]*$\n/

Instance Method Summary collapse

Instance Method Details

#compress(string) ⇒ Object

Remove comments and blank lines from our html.



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# File 'lib/emcee/compressors/html_compressor.rb', line 40

def compress(string)
  ops = [HTML_COMMENTS, JS_MULTI_COMMENTS, JS_COMMENTS, BLANK_LINES]

  ops.reduce(string) do |output, op|
    output.gsub(op, "")
  end
end