Add option: sort-order

lib/options/sort-order.js

@@ -0,0 +1,169 @@
+module.exports = {
+
+    /**
+     * Internal. Smart split bunch on '\n' symbols;
+     * @param {Array} bunch
+     * @param {Boolean} isPrevDeclExists
+     */
+    _splitBunch: function(bunch, isPrevDeclExists) {
+
+        var nextBunch = [];
+        var declAlready = false;
+        var flag = false;
+        var item;
+        var indexOf;
+
+        for (var i = 0; i < bunch.length; ++i) {
+            if (flag) { nextBunch.push(bunch[i]); continue; }
+            if (bunch[i][0] == 'declaration') { declAlready = true; }
+
+            if (isPrevDeclExists && !declAlready) continue;
+            if (bunch[i][0] != 's') continue;
+
+            var indexOfNewLine = bunch[i][1].indexOf('\n');
+
+            if (indexOfNewLine == -1) continue;
+
+            nextBunch.push(['s', bunch[i][1].substr(indexOfNewLine + 1)]);
+            bunch[i][1] = bunch[i][1].substr(0, indexOfNewLine + 1);
+
+            flag = i + 1;
+        }
+
+        if (nextBunch.length == 1 && nextBunch[0][0] == 's') {
+            item = nextBunch[0];
+            indexOf = item[1].lastIndexOf('\n')
+
+            indexOf != -1 && (item[1] = item[1].substr(indexOf + 1));
+        }
+
+        flag && bunch.splice(flag);
+
+        return nextBunch;
+
+    },
+
+    /**
+     * Internal. Create extended node in format of list
+     * {
+     *  data:[,,declaration,]
+     *  decl: declarationPropertyName
+     * };
+     * @param {node} node
+     */
+    _createNodeExt: function(node) {
+
+        var extNode = [];
+        var bunch = [];
+        var nextBunch;
+        var prevDeclPropertyName;
+
+        node.forEach(function(node) {
+
+            if (node[0] == 'declaration') {
+                nextBunch = this._splitBunch(bunch, prevDeclPropertyName);
+                extNode.push({ data: bunch, decl: prevDeclPropertyName });
+                bunch = nextBunch;
+                prevDeclPropertyName = node[1][1][1];
+            }
+
+            bunch.push(node);
+
+        }, this);
+
+        nextBunch = this._splitBunch(bunch, prevDeclPropertyName);
+        extNode.push({ data: bunch, decl: prevDeclPropertyName });
+        nextBunch.length && extNode.push({ data: nextBunch });
+
+        return extNode;
+
+    },
+
+    /**
+     * Internal. Add delimiter at the end of groups of properties
+     * @param {extNode} extNodePrev
+     * @param {extNode} extNode
+     */
+    _addGroupDelimiter: function(extNodePrev, extNode) {
+
+        if (!extNodePrev.decl || !extNode.decl) return;
+
+        var indexA = this._order[extNodePrev.decl];
+        var indexB = this._order[extNode.decl];
+        var isGroupBorder = indexA && indexB && indexA.group != indexB.group;
+
+        if (isGroupBorder)
+            extNode.data.unshift(['s', '\n']);
+
+    },
+
+    /**
+     * Internal. apply extNode back at common format node.
+     * @param {node} node
+     * @param {extNode} extNode
+     */
+    _applyNodeExt: function(node, extNode) {
+
+        node.splice(0, node.length);
+
+        extNode.forEach(function(item, i) {
+            i > 0 && this._addGroupDelimiter(extNode[i - 1], item);
+            node.push.apply(node, item.data);
+        }, this);
+
+    },
+
+    /**
+     * Sets handler value.
+     *
+     * @param {Array} value Option value
+     * @returns {Object}
+     */
+    setValue: function(value) {
+
+        if (!value) return;
+
+        this._order = {}
+        value.forEach(function(group, groupIndex){
+            group.forEach(function(prop, propIndex) {
+                this._order[prop] = { group: groupIndex, prop: propIndex };
+            }, this)
+        }, this);
+
+        return this;
+
+    },
+
+    /**
+     * Processes tree node.
+     * @param {String} nodeType
+     * @param {node} node
+     */
+    process: function(nodeType, node) {
+
+        if (nodeType !== 'block') return;
+
+        var order = this._order;
+        var nodeExt = this._createNodeExt(node);
+        var firstSymbols = nodeExt[0].decl || nodeExt.shift();
+        var lastSymbols = nodeExt[nodeExt.length - 1].decl || nodeExt.pop();
+
+        nodeExt.sort(function(a, b) {
+
+            var indexA = order[a.decl] || { prop: -1 };
+            var indexB = order[b.decl] || { prop: -1 };
+            var groupDelta = indexA.group - indexB.group;
+            var propDelta = indexA.prop - indexB.prop;
+
+            return groupDelta !== 0 ? groupDelta : propDelta;
+
+        });
+
+        firstSymbols && nodeExt.unshift(firstSymbols);
+        lastSymbols && nodeExt.push(lastSymbols);
+
+        this._applyNodeExt(node, nodeExt);
+
+    }
+
+};

test/integral.expect.css

@@ -9,7 +9,6 @@
         background: -moz-linear-gradient(top, rgba(0,0,0,0.2) 0, rgba(0,0,0,0.4) 100%);
         background: -o-linear-gradient(top, rgba(0,0,0,0.2) 0,rgba(0,0,0,0.4) 100%);
         background: linear-gradient(to bottom, rgba(0,0,0,0.2) 0,rgba(0,0,0,0.4) 100%);
-
         -moz-box-shadow: 0 1px 0 rgba(0,0,0,.07);
         box-shadow: 0 1px 0 rgba(0,0,0,.07);
     }
@@ -35,17 +34,19 @@
 /* Фигурные скобки. Вариант 1 */
 a, b, i /* foobar */
 {
-    padding: 0;
     margin: 0;
+    padding: 0;
 }
 div p
 {
     font-size: 1px;
+
     top: 0;
 }
 div p em
 {
     font-style: italic;
+
     border-bottom: 1px solid red;
 }
 
@@ -67,12 +68,15 @@ div p em
 { /* foobar */
     .input__control
     {
-        color: #000;
         font-size: 100%;
-        margin: 0;
+
         position: relative;
-        width: 100%;
         z-index: 3;
+
+        width: 100%;
+        margin: 0;
+
+        color: #000;
     }
 }
 
@@ -82,41 +86,45 @@ div p em
     .input__control
     {
         -moz-box-sizing: border-box;
-        background: none;
-        border: 0;
         box-sizing: border-box;
-        outline: 0;
         padding: 0.4em 0;
+
+        border: 0;
+        outline: 0;
+        background: none;
     }
 }
 
 /* Фигурные скобки. Вариант 2 */
 div
 {
-    padding: 0;
     margin: 0;
+    padding: 0;
 }
 div p
 {
     font-size: 1px;
+
     top: 0;
 }
 div p em
 {
     font-style: italic;/* inline comment*/
+
     border-bottom: 1px solid red;
 }
 
 /* Фигурные скобки. Вариант 3 */
 div
 {
-    padding: 0;
     margin: 0;
+    padding: 0;
 }
 /* foo */
 div p
 {
     font-size: 1px;
+
     top: 0;
 }
 div p em
@@ -130,10 +138,12 @@ div p em
 a
 {
     top: 0;/* ololo */
+
     margin: 0;
 }
 b
 {
     top: 0/* trololo */;
+
     margin: 0;
 }