UglifyCSS is a port of YUI Compressor to NodeJS for its CSS part. Its name is a reference to the awesome UglifyJS but UglifyCSS is not a CSS parser. Like YUI CSS Compressor, it applies many regexp replacements. Note that a port to JavaScript is also available in the YUI Compressor repository.
UglifyCSS passes successfully the test suite of YUI compressor CSS.
Be sure to submit valid CSS to UglifyCSS or you could get weird results.
Installation
For a command line usage:
$ npm install uglifycss -g
For API usage:
$ npm install uglifycss
From Github:
$ git clone git://github.com/fmarcia/UglifyCSS.git
Command line
$ uglifycss [options] [filename] [...] > output
Options:
--max-line-len n
adds a newline (approx.) every n
characters; 0
means no newline and is the default value--expand-vars
expands variables; by default, @variables
blocks are preserved and var(x)
s are not expanded--ugly-comments
removes newlines within preserved comments; by default, newlines are preserved--cute-comments
preserves newlines within and around preserved comments
If no file name is specified, input is read from stdin.
API
2 functions are provided:
processString( content, options )
to process a given stringprocessFiles( [ filename1, ... ], options )
to process the concatenation of given files
Options are identical to the command line:
<int> maxLineLen
for --max-line-len n
<bool> expandVars
for --expand-vars
<bool> uglyComments
for --ugly-comments
<bool> cuteComments
for --cute-comments
Both functions return uglified css.
Example
var uglifycss = require('uglifycss');
var uglified = uglifycss.processFiles(
[ 'file1', 'file2' ],
{ maxLineLen: 500, expandVars: true }
);
console.log(uglified);
See also test.js.
License
UglifyCSS is MIT licensed.