complete redesign: use nodejs on server instead of php - documentation to be updated

nodejs/node_modules/stylus/lib/nodes/query.js

@@ -0,0 +1,170 @@
+
+/*!
+ * Stylus - Query
+ * Copyright (c) Automattic <developer.wordpress.com>
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var Node = require('./node');
+
+/**
+ * Initialize a new `Query`.
+ *
+ * @api public
+ */
+
+var Query = module.exports = function Query(){
+  Node.call(this);
+  this.nodes = [];
+  this.type = '';
+  this.predicate = '';
+};
+
+/**
+ * Inherit from `Node.prototype`.
+ */
+
+Query.prototype.__proto__ = Node.prototype;
+
+/**
+ * Return a clone of this node.
+ * 
+ * @return {Node}
+ * @api public
+ */
+
+Query.prototype.clone = function(parent){
+  var clone = new Query;
+  clone.predicate = this.predicate;
+  clone.type = this.type;
+  for (var i = 0, len = this.nodes.length; i < len; ++i) {
+    clone.push(this.nodes[i].clone(parent, clone));
+  }
+  clone.lineno = this.lineno;
+  clone.column = this.column;
+  clone.filename = this.filename;
+  return clone;
+};
+
+/**
+ * Push the given `feature`.
+ *
+ * @param {Feature} feature
+ * @api public
+ */
+
+Query.prototype.push = function(feature){
+  this.nodes.push(feature);
+};
+
+/**
+ * Return resolved type of this query.
+ *
+ * @return {String}
+ * @api private
+ */
+
+Query.prototype.__defineGetter__('resolvedType', function(){
+  if (this.type) {
+    return this.type.nodeName
+      ? this.type.string
+      : this.type;
+  }
+});
+
+/**
+ * Return resolved predicate of this query.
+ *
+ * @return {String}
+ * @api private
+ */
+
+Query.prototype.__defineGetter__('resolvedPredicate', function(){
+  if (this.predicate) {
+    return this.predicate.nodeName
+      ? this.predicate.string
+      : this.predicate;
+  }
+});
+
+/**
+ * Merges this query with the `other`.
+ *
+ * @param {Query} other
+ * @return {Query}
+ * @api private
+ */
+
+Query.prototype.merge = function(other){
+  var query = new Query
+    , p1 = this.resolvedPredicate
+    , p2 = other.resolvedPredicate
+    , t1 = this.resolvedType
+    , t2 = other.resolvedType
+    , type, pred;
+
+  // Stolen from Sass :D
+  t1 = t1 || t2;
+  t2 = t2 || t1;
+  if (('not' == p1) ^ ('not' == p2)) {
+    if (t1 == t2) return;
+    type = ('not' == p1) ? t2 : t1;
+    pred = ('not' == p1) ? p2 : p1;
+  } else if (('not' == p1) && ('not' == p2)) {
+    if (t1 != t2) return;
+    type = t1;
+    pred = 'not';
+  } else if (t1 != t2) {
+    return;
+  } else {
+    type = t1;
+    pred = p1 || p2;
+  }
+  query.predicate = pred;
+  query.type = type;
+  query.nodes = this.nodes.concat(other.nodes);
+  return query;
+};
+
+/**
+ * Return "<a> and <b> and <c>"
+ *
+ * @return {String}
+ * @api public
+ */
+
+Query.prototype.toString = function(){
+  var pred = this.predicate ? this.predicate + ' ' : ''
+    , type = this.type || ''
+    , len = this.nodes.length
+    , str = pred + type;
+  if (len) {
+    str += (type && ' and ') + this.nodes.map(function(expr){
+      return expr.toString();
+    }).join(' and ');
+  }
+  return str;
+};
+
+/**
+ * Return a JSON representation of this node.
+ *
+ * @return {Object}
+ * @api public
+ */
+
+Query.prototype.toJSON = function(){
+  return {
+    __type: 'Query',
+    predicate: this.predicate,
+    type: this.type,
+    nodes: this.nodes,
+    lineno: this.lineno,
+    column: this.column,
+    filename: this.filename
+  };
+};