fis3-spriter-csssprite/libs/cssParser.js

基于fis-spriter-csssprites，增加输出相对路径的支持

/**
 * fis.baidu.com
 * @type {Function}
 */

'use strict';

var path = require('path');
var Rules = require('./css/rules.js');
module.exports = function (content, images, file) {
    var _arr_css = []
        , _content;
    var reg = /(?:\/\*[\s\S]*?(?:\*\/|$))|([^\{\}\/]*)\{([^\{\}]*)\}/gi;
    var filePath = path.dirname(file.url || file.release || file.subpath);
    _content = content.replace(reg, function(m, selector, css) {
        if (css) {
            var rules = Rules.wrap(selector.trim(), css.trim());
            var imgUrl;
            if (rules.isSprites()) {
              imgUrl = rules.getImageUrl();
              if (!path.isAbsolute(imgUrl)) {
                imgUrl = path.join(filePath, imgUrl).replace(/\\/g, '/');
              }
              if (images.hasOwnProperty(imgUrl)) {
                rules.image = imgUrl;
                _arr_css.push(rules);
                css = rules.getCss();
              }
            }
            return selector + '{' + css + '}';
        }
        return m;
    });
    return {
        content: _content,
        map: _arr_css
    };
};