Added color-case option

.csscomb.json

@@ -4,6 +4,7 @@
         "node_modules/**"
     ],
     "colon-space": true,
+    "color-case": "lower",
     "leading-zero": false,
     "rule-indent": true,
     "block-indent": true,

README.md

@@ -35,6 +35,7 @@ Example configuration:
 {
     "exclude": ["node_modules/**"],
     "colon-space": true,
+    "color-case": "lower",
     "leading-zero": false,
     "rule-indent": true,
     "block-indent": true,

lib/csscomb.js

@@ -12,6 +12,7 @@ var Comb = function() {
     this._handlers;
     this._options = [
         'always-semicolon',
+        'color-case',
         'leading-zero',
         'strip-spaces',
         'stick-brace',

lib/options/color-case.js

@@ -0,0 +1,31 @@
+module.exports = {
+
+    /**
+     * Sets handler value.
+     *
+     * @param {String} value Option value
+     * @returns {Object}
+     */
+    setValue: function(value) {
+        if (value === 'lower' || value === 'upper') {
+            this._value = value;
+            return this;
+        }
+    },
+
+    /**
+     * Processes tree node.
+     * @param {String} nodeType
+     * @param {node} node
+     */
+    process: function(nodeType, node) {
+        if (nodeType === 'vhash') {
+            if (this._value === 'lower') {
+                node[0] = node[0].toLowerCase();
+            } else if (this._value === 'upper') {
+                node[0] = node[0].toUpperCase();
+            }
+        }
+    }
+
+};

test/color-case.js

@@ -0,0 +1,53 @@
+var Comb = require('../lib/csscomb');
+var assert = require('assert');
+
+describe('options/color-case', function() {
+    var comb;
+
+    beforeEach(function() {
+        comb = new Comb();
+    });
+
+    it('Should switch colors to upper case', function() {
+        comb.configure({ 'color-case': 'upper' });
+        assert.equal(
+            comb.processString(
+                'div { color: #fff }'
+            ),
+            'div { color: #FFF }'
+        );
+    });
+
+    it('Should switch colors to lower case', function() {
+        comb.configure({ 'color-case': 'lower' });
+        assert.equal(
+            comb.processString(
+                'div { color: #FFF }'
+            ),
+            'div { color: #fff }'
+        );
+    });
+
+    it('Should switch color-case in complex rules', function() {
+        comb.configure({ 'color-case': 'lower' });
+        assert.equal(
+            comb.processString(
+                'div { background: url(img.png#RND) #E3E3E3 0 100% no-repeat;' +
+                    ' box-shadow: 1px 2px 3px 4px #F0F0F0 inset; }'
+            ),
+            'div { background: url(img.png#RND) #e3e3e3 0 100% no-repeat;' +
+                ' box-shadow: 1px 2px 3px 4px #f0f0f0 inset; }'
+        );
+    });
+
+    it('Should not switch selector case', function() {
+        comb.configure({ 'color-case': 'lower' });
+        assert.equal(
+            comb.processString(
+                '#Header { color: #FFF }'
+            ),
+            '#Header { color: #fff }'
+        );
+    });
+
+});

test/integral.origin.css

@@ -16,11 +16,11 @@
     /* :after — фон */
     .radio-button_theme_normal .radio-button__radio:after
     {
-        background: #fff;
-        background: -webkit-linear-gradient(top, #fff 0,#eee 100%);
-        background: -moz-linear-gradient(top, #fff 0, #eee 100%);
+        background: #fFf;
+        background: -webkit-linear-gradient(top, #Fff 0,#eeE 100%);
+        background: -moz-linear-gradient(top, #fff 0, #eEe 100%);
         background: -o-linear-gradient(top, #fff 0,#eee 100%);
-        background: linear-gradient(to bottom, #fff 0,#eee 100%);
+        background: linear-gradient(to bottom, #fff 0,#eEe 100%);
     }
 
     /* _focused_yes */