add @document compilation. Closes #82

Author: tj

examples/document.css

@@ -0,0 +1,17 @@
+@-moz-document url-prefix() {
+  .icon-spin {
+    height: .9em
+  }
+
+  .btn .icon-spin {
+    height: auto
+  }
+
+  .icon-spin.icon-large {
+    height: 1.25em
+  }
+
+  .btn .icon-spin.icon-large {
+    height: .75em
+  }
+}

examples/document.js

@@ -0,0 +1,12 @@
+
+/**
+ * Module dependencies.
+ */
+
+var parse = require('css-parse')
+  , stringify = require('..')
+  , fs = require('fs')
+  , read = fs.readFileSync
+  , css = read('examples/document.css', 'utf8');
+
+console.log(stringify(parse(css), { compress: false }));

index.js

@@ -36,6 +36,7 @@ Compiler.prototype.compile = function(node){
  */
 
 Compiler.prototype.visit = function(node){
+  if (node.document) return this.document(node);
   if (node.comment) return this.comment(node);
   if (node.charset) return this.charset(node);
   if (node.keyframes) return this.keyframes(node);
@@ -83,6 +84,28 @@ Compiler.prototype.media = function(node){
     + '\n}';
 };
 
+/**
+ * Visit document node.
+ */
+
+Compiler.prototype.document = function(node){
+  var doc = '@' + (node.vendor || '') + 'document ' + node.document;
+
+  if (this.compress) {
+    return doc
+      + '{'
+      + node.rules.map(this.visit, this).join('')
+      + '}';
+  }
+
+  return doc + ' '
+    + ' {\n'
+    + this.indent(1)
+    + node.rules.map(this.visit, this).join('\n\n')
+    + this.indent(-1)
+    + '\n}';
+};
+
 /**
  * Visit charset node.
  */

test/cases/document.css

@@ -0,0 +1,17 @@
+@-moz-document url-prefix()  {
+  .icon-spin {
+    height: .9em
+  }
+
+  .btn .icon-spin {
+    height: auto
+  }
+
+  .icon-spin.icon-large {
+    height: 1.25em
+  }
+
+  .btn .icon-spin.icon-large {
+    height: .75em
+  }
+}