Add support for a defaultTagName

Author: wooorm

Diff for: index.js

@@ -6,9 +6,9 @@ var dot = '.'.charCodeAt(0)
 var hash = '#'.charCodeAt(0)
 
 /* Parse a simple CSS selector into a HAST node. */
-function parse(selector) {
+function parse(selector, defaultTagName) {
   var value = selector || ''
-  var name = 'div'
+  var name = defaultTagName || 'div'
   var props = {}
   var index = -1
   var length = value.length

Diff for: readme.md

@@ -29,7 +29,7 @@ Yields:
 
 ## API
 
-### `parseSelector([selector])`
+### `parseSelector([selector][, defaultTagName])`
 
 Parse a CSS `selector` to a [HAST][] node.
 
@@ -39,6 +39,11 @@ Parse a CSS `selector` to a [HAST][] node.
 and an ID (`#baz`).  Multiple classes are allowed.  Uses the last ID if
 multiple IDs are found.
 
+###### `defaultTagName`
+
+`string`, optional, defaults to `div` — Tag name to use if `selector` does not
+specify one.
+
 ###### Returns
 
 [`Node`][hast].

Diff for: test.js

@@ -26,6 +26,28 @@ test('parseSelector()', function(t) {
     'should return an element with a tag-name when given a tag-name'
   )
 
+  t.deepEqual(
+    parseSelector(null, 'g'),
+    {
+      type: 'element',
+      tagName: 'g',
+      properties: {},
+      children: []
+    },
+    'should return an `defaultTagName` if no tag name is defined in `selector` (#1)'
+  )
+
+  t.deepEqual(
+    parseSelector('#id', 'g'),
+    {
+      type: 'element',
+      tagName: 'g',
+      properties: {id: 'id'},
+      children: []
+    },
+    'should return an `defaultTagName` if no tag name is defined in `selector` (#2)'
+  )
+
   t.deepEqual(
     parseSelector('.bar'),
     {