Fix support for template elements

Closes syntax-tree/hast-util-from-parse5#11.
Closes syntax-tree/hast-util-from-parse5#12.

Author: wooorm

index.js

@@ -176,6 +176,9 @@ function wrap(tree, file) {
 
   function raw(node) {
     var start = pos.start(node)
+    var line = start.line || 1
+    var column = start.column || 1
+    var offset = start.offset || 0
     var token
 
     // Reset preprocessor:
@@ -189,11 +192,11 @@ function wrap(tree, file) {
     // Reset preprocessor mixin:
     // See: <https://github.com/inikulin/parse5/blob/0491902/packages/parse5/lib/extensions/position-tracking/preprocessor-mixin.js>.
     posTracker.droppedBufferSize = 0
-    posTracker.line = start.line
+    posTracker.line = line
     posTracker.col = 1
     posTracker.offset = 0
-    posTracker.lineStartPos = -start.column + 1
-    posTracker.droppedBufferSize = start.offset
+    posTracker.lineStartPos = -column + 1
+    posTracker.droppedBufferSize = offset
 
     // Reset location tracker:
     // See: <https://github.com/inikulin/parse5/blob/0491902/packages/parse5/lib/extensions/location-info/tokenizer-mixin.js>.

test.js

@@ -150,6 +150,23 @@ test('raw', function (t) {
     'should pass raw nodes through even after textarea (#3)'
   )
 
+  t.deepEqual(
+    raw(u('root', [u('raw', '<template>a<b></b>c</template>')])),
+    u('root', {data: {quirksMode: false}}, [
+      u('element', {
+        tagName: 'template',
+        properties: {},
+        children: [],
+        content: u('root', {data: {quirksMode: false}}, [
+          u('text', 'a'),
+          h('b'),
+          u('text', 'c')
+        ])
+      })
+    ]),
+    'should support template nodes'
+  )
+
   t.deepEqual(
     raw(u('root', [u('raw', '<script>alert(1)</script>')])),
     u('root', {data: {quirksMode: false}}, [