code: function(code) {
  
  		var tokens = new TokenStream(code),
  			hasCRLF = code.indexOf("\r") > -1,
  			lines = code.split(/\r?\n/),
  			line,
  			token,
  			tt,
  			replacement,
  			colAdjust = 0,
  			lastLine = 0;
  
  		while ((tt = tokens.get()) !== 0) {
  			token = tokens.token();
  
  			if (tt === Tokens.URI) { // URI
  
  				if (lastLine !== token.startLine) {
  					colAdjust = 0;
  					lastLine = token.startLine;
  				}
  
  				replacement = this.replacer(token.value.replace(URL_PARENS, ""));
  
  				// 5 is for url() characters
  				line = lines[token.startLine - 1];
  				lines[token.startLine - 1] = line.substring(0, token.startCol + colAdjust - 1) +
  					"url(" + replacement + ")" + line.substring(token.endCol + colAdjust - 1);
  				colAdjust += ((replacement.length + 5) - token.value.length);
  			}
  		}
  
  		return lines.join(hasCRLF ? "\r\n" : "\n");
  	}
docs: Rewrites the given CSS code using the replacer.
  @param {string} code The CSS code to rewrite.
  @returns {string} The CSS code with the URLs replaced.