Specs: rename sky:core to dart:sky

sky/specs/parsing.md

 Parsing
 =======
 
 Parsing in Sky is a strict pipeline consisting of five stages:
 
 - decoding, which converts incoming bytes into Unicode characters
   using UTF-8.
 
 - normalising, which manipulates the sequence of characters.
 
@@ skipping 785 matching lines @@
         characters, and there is no ``t`` element on the _stack of
         open nodes_, then skip the token.
      2. Create a text node _node_ whose character data is the value of
         the token.
      3. Append _node_ to the top node in the _stack of open nodes_.
    - If _token_ is a start tag token,
      1. If the tag name isn't a registered tag name, then yield until
         _imported modules_ contains no entries with unresolved
         promises.
      2. If the tag name is not registered, then let the ErrorElement
-        constructor from sky:core be the element constructor.
+        constructor from dart:sky be the element constructor.
         Otherwise, let the element constructor be the registered
         element's constructor for that tag name in this module.
      3. Create an element _node_ with the attributes given by the
         token by calling the constructor.
      4. If _node_ is not an Element object, then let the constructor
         be the ErrorElement constructor and return to the previous
         step.
      5. Append _node_ to the top node in the _stack of open nodes_.
      6. Push _node_ onto the top of the _stack of open nodes_.
      7. If _node_ is a ``template`` element, then:
@@ skipping 19 matching lines @@
         popped.
      5. If _node_'s tag name is ``script``, then yield until _imported
         modules_ contains no entries with unresolved promises, then
         execute the script given by the element's contents, using the
         associated names as appropriate.
    - If _token_ is an automatic end tag token:
      1. Pop the top node from the _stack of open nodes_, unless it is
         the document.
 4. Yield until _imported modules_ has no promises.
 5. Fire a ``load`` event at the _parsing context_ object.