# This rule is taken from https://github.com/stubbornella/csslint/tree/master/src/rules
#
#
# Copyright (c) 2011 Nicole Sullivan and Nicholas C. Zakas. All rights reserved.
# TODO: Paste the CSSLint LICENSE here.
#
#
# 
# /*global CSSLint*/
# CSSLint.addRule({
# 
#     //rule information
#     id: "fallback-colors",
#     name: "Require fallback colors",
#     desc: "For older browsers that don't support RGBA, HSL, or HSLA, provide a fallback color.",
#     browsers: "IE6,IE7,IE8",
# 
#     //initialization
#     init: function(parser, reporter){
#         var rule = this,
#             lastProperty,
#             propertiesToCheck = {
#                 color: 1,
#                 background: 1,
#                 "border-color": 1,
#                 "border-top-color": 1,
#                 "border-right-color": 1,
#                 "border-bottom-color": 1,
#                 "border-left-color": 1,
#                 border: 1,
#                 "border-top": 1,
#                 "border-right": 1,
#                 "border-bottom": 1,
#                 "border-left": 1,
#                 "background-color": 1
#             },
#             properties;
#         
#         function startRule(event){
#             properties = {};    
#             lastProperty = null;    
#         }
#         
#         parser.addListener("startrule", startRule);
#         parser.addListener("startfontface", startRule);
#         parser.addListener("startpage", startRule);
#         parser.addListener("startpagemargin", startRule);
#         parser.addListener("startkeyframerule", startRule);        
#         
#         parser.addListener("property", function(event){
#             var property = event.property,
#                 name = property.text.toLowerCase(),
#                 parts = event.value.parts,
#                 i = 0, 
#                 colorType = "",
#                 len = parts.length;                
#                         
#             if(propertiesToCheck[name]){
#                 while(i < len){
#                     if (parts[i].type == "color"){
#                         if ("alpha" in parts[i] || "hue" in parts[i]){
#                             
#                             if (/([^\)]+)\(/.test(parts[i])){
#                                 colorType = RegExp.$1.toUpperCase();
#                             }
#                             
#                             if (!lastProperty || (lastProperty.property.text.toLowerCase() != name || lastProperty.colorType != "compat")){
#                                 reporter.report("Fallback " + name + " (hex or RGB) should precede " + colorType + " " + name + ".", event.line, event.col, rule);
#                             }
#                         } else {
#                             event.colorType = "compat";
#                         }
#                     }
#                     
#                     i++;
#                 }
#             }
# 
#             lastProperty = event;
#         });        
#          
#     }
# 
# });