Fix embedding within attribute tags

Author: Michael Lyons

README.md

@@ -32,12 +32,7 @@ The old ASP.Net style pages that necessitated creation of this package. Post-Vis
 
 ### Known issues
 
-- Code blocks in CSS and JavaScript attributes that contain the opening attribute delimiter are prematurely terminated.
-
-    ```
-    <p style="color: <%= "red" %>" ></p>
-    <p onclick="<%= "alert('hi!')" %>"></p>
-    ```
+- Nothing yet? &#x1f91e;
 
 
 ## Razor

WebForms/WebForms.sublime-syntax

@@ -286,38 +286,54 @@ contexts:
 
   tag-event-attribute-value:
     - match: \"
-      scope: meta.string.html string.quoted.double.html punctuation.definition.string.begin.html
-      embed: scope:source.js.cs.webforms
-      embed_scope: meta.string.html meta.interpolation.html source.js.embedded.html
-      escape: \"
-      escape_captures:
-        0: meta.string.html string.quoted.double.html punctuation.definition.string.end.html
+      scope: string.quoted.double.html punctuation.definition.string.begin.html
+      set: tag-event-attribute-value-double-quoted-content
     - match: \'
-      scope: meta.string.html string.quoted.single.html punctuation.definition.string.begin.html
-      embed: scope:source.js.cs.webforms
-      embed_scope: meta.string.html meta.interpolation.html source.js.embedded.html
-      escape: \'
-      escape_captures:
-        0: meta.string.html string.quoted.single.html punctuation.definition.string.end.html
+      scope: string.quoted.single.html punctuation.definition.string.begin.html
+      set: tag-event-attribute-value-single-quoted-content
     - include: else-pop
 
+  tag-event-attribute-value-double-quoted-content:
+    - meta_scope: meta.string.html
+    - meta_content_scope: meta.interpolation.html source.js.embedded.html
+    - match: \"
+      scope: string.quoted.double.html punctuation.definition.string.end.html
+      pop: 1
+    - include: scope:source.js.embedded.string.quoted.double.cs.webforms
+
+  tag-event-attribute-value-single-quoted-content:
+    - meta_scope: meta.string.html
+    - meta_content_scope: meta.interpolation.html source.js.embedded.html
+    - match: \'
+      scope: string.quoted.single.html punctuation.definition.string.end.html
+      pop: 1
+    - include: scope:source.js.embedded.string.quoted.single.cs.webforms
+
   tag-style-attribute-value:
     - match: \"
-      scope: meta.string.html string.quoted.double.html punctuation.definition.string.begin.html
-      embed: scope:source.css.cs.webforms#rule-list-body
-      embed_scope: meta.string.html meta.interpolation.html source.css.embedded.html
-      escape: \"
-      escape_captures:
-        0: meta.string.html string.quoted.double.html punctuation.definition.string.end.html
+      scope: string.quoted.double.html punctuation.definition.string.begin.html
+      set: tag-style-attribute-value-double-quoted-content
     - match: \'
-      scope: meta.string.html string.quoted.single.html punctuation.definition.string.begin.html
-      embed: scope:source.css.cs.webforms#rule-list-body
-      embed_scope: meta.string.html meta.interpolation.html source.css.embedded.html
-      escape: \'
-      escape_captures:
-        0: meta.string.html string.quoted.single.html punctuation.definition.string.end.html
+      scope: string.quoted.single.html punctuation.definition.string.begin.html
+      set: tag-style-attribute-value-single-quoted-content
     - include: else-pop
 
+  tag-style-attribute-value-double-quoted-content:
+    - meta_scope: meta.string.html
+    - meta_content_scope: meta.interpolation.html source.css.embedded.html
+    - match: \"
+      scope: string.quoted.double.html punctuation.definition.string.end.html
+      pop: 1
+    - include: scope:source.css.embedded.string.quoted.double.cs.webforms
+
+  tag-style-attribute-value-single-quoted-content:
+    - meta_scope: meta.string.html
+    - meta_content_scope: meta.interpolation.html source.css.embedded.html
+    - match: \'
+      scope: string.quoted.single.html punctuation.definition.string.end.html
+      pop: 1
+    - include: scope:source.css.embedded.string.quoted.single.cs.webforms
+
   tag-attribute-value-content:
     - meta_prepend: true
     - include: csharp-interpolations

WebForms/embeddings/CSS (for C# WebForms double-quoted).sublime-syntax

@@ -0,0 +1,17 @@
+%YAML 1.2
+---
+scope: source.css.embedded.string.quoted.double.cs.webforms
+version: 2
+hidden: true
+
+extends: Packages/HTML (C#)/WebForms/CSS (WebForms).sublime-syntax
+
+contexts:
+
+  prototype:
+    - meta_prepend: true
+    - match: (?=")
+      pop: 1
+
+  main:
+    - include: rule-list-body

WebForms/embeddings/CSS (for C# WebForms single-quoted).sublime-syntax

@@ -0,0 +1,17 @@
+%YAML 1.2
+---
+scope: source.css.embedded.string.quoted.single.cs.webforms
+version: 2
+hidden: true
+
+extends: Packages/HTML (C#)/WebForms/CSS (WebForms).sublime-syntax
+
+contexts:
+
+  prototype:
+    - meta_prepend: true
+    - match: (?=')
+      pop: 1
+
+  main:
+    - include: rule-list-body

WebForms/embeddings/JavaScript (for C# WebForms double-quoted).sublime-syntax

@@ -0,0 +1,14 @@
+%YAML 1.2
+---
+scope: source.js.embedded.string.quoted.double.cs.webforms
+version: 2
+hidden: true
+
+extends: Packages/HTML (C#)/WebForms/JavaScript (WebForms).sublime-syntax
+
+contexts:
+
+  prototype:
+    - meta_prepend: true
+    - match: (?=")
+      pop: 1

WebForms/embeddings/JavaScript (for C# WebForms single-quoted).sublime-syntax

@@ -0,0 +1,14 @@
+%YAML 1.2
+---
+scope: source.js.embedded.string.quoted.single.cs.webforms
+version: 2
+hidden: true
+
+extends: Packages/HTML (C#)/WebForms/JavaScript (WebForms).sublime-syntax
+
+contexts:
+
+  prototype:
+    - meta_prepend: true
+    - match: (?=')
+      pop: 1