1 files changed, 42 insertions, 0 deletions
diff --git a/bin/lib/less/tree/selector.js b/bin/lib/less/tree/selector.js
new file mode 100644
index 00000000..65abbb69
--- /dev/null
+++ b/bin/lib/less/tree/selector.js
@@ -0,0 +1,42 @@
+(function (tree) {
+
+tree.Selector = function (elements) {
+    this.elements = elements;
+    if (this.elements[0].combinator.value === "") {
+        this.elements[0].combinator.value = ' ';
+    }
+};
+tree.Selector.prototype.match = function (other) {
+    var len  = this.elements.length,
+        olen = other.elements.length,
+        max  = Math.min(len, olen);
+
+    if (len < olen) {
+        return false;
+    } else {
+        for (var i = 0; i < max; i++) {
+            if (this.elements[i].value !== other.elements[i].value) {
+                return false;
+            }
+        }
+    }
+    return true;
+};
+tree.Selector.prototype.eval = function (env) {
+    return new(tree.Selector)(this.elements.map(function (e) {
+        return e.eval(env);
+    }));
+};
+tree.Selector.prototype.toCSS = function (env) {
+    if (this._css) { return this._css }
+
+    return this._css = this.elements.map(function (e) {
+        if (typeof(e) === 'string') {
+            return ' ' + e.trim();
+        } else {
+            return e.toCSS(env);
+        }
+    }).join('');
+};
+
+})(require('../tree'));