enh(objc) add scopes type and variable.language (#3499)

Author: joshgoebel

CHANGES.md

@@ -11,6 +11,7 @@ New Grammars:
 
 Grammars:
 
+- enh(objectivec) add `type` and `variable.language` scopes [Josh Goebel][]
 - enh(xml) support processing instructions (#3492) [Josh Goebel][]
 - enh(ruby ) better support multi-line IRB prompts
 - enh(bash) improved keyword `$pattern` (numbers allowed in command names) [Martin Mattel][]

src/languages/objectivec.js

@@ -12,46 +12,51 @@ export default function(hljs) {
     begin: '\\b(AV|CA|CF|CG|CI|CL|CM|CN|CT|MK|MP|MTK|MTL|NS|SCN|SK|UI|WK|XC)\\w+'
   };
   const IDENTIFIER_RE = /[a-zA-Z@][a-zA-Z0-9_]*/;
-  const KWS = [
+  const TYPES = [
     "int",
     "float",
-    "while",
     "char",
+    "unsigned",
+    "signed",
+    "short",
+    "long",
+    "double",
+    "wchar_t",
+    "unichar",
+    "void",
+    "bool",
+    "BOOL",
+    "id|0",
+    "_Bool"
+  ];
+  const KWS = [
+    "while",
     "export",
     "sizeof",
     "typedef",
     "const",
     "struct",
     "for",
     "union",
-    "unsigned",
-    "long",
     "volatile",
     "static",
-    "bool",
     "mutable",
     "if",
     "do",
     "return",
     "goto",
-    "void",
     "enum",
     "else",
     "break",
     "extern",
     "asm",
     "case",
-    "short",
     "default",
-    "double",
     "register",
     "explicit",
-    "signed",
     "typename",
-    "this",
     "switch",
     "continue",
-    "wchar_t",
     "inline",
     "readonly",
     "assign",
@@ -61,8 +66,6 @@ export default function(hljs) {
     "id",
     "typeof",
     "nonatomic",
-    "super",
-    "unichar",
     "IBOutlet",
     "IBAction",
     "strong",
@@ -153,18 +156,22 @@ export default function(hljs) {
     "NULL"
   ];
   const BUILT_INS = [
-    "BOOL",
     "dispatch_once_t",
     "dispatch_queue_t",
     "dispatch_sync",
     "dispatch_async",
     "dispatch_once"
   ];
   const KEYWORDS = {
+    "variable.language": [
+      "this",
+      "super"
+    ],
     $pattern: IDENTIFIER_RE,
     keyword: KWS,
     literal: LITERALS,
-    built_in: BUILT_INS
+    built_in: BUILT_INS,
+    type: TYPES
   };
   const CLASS_KEYWORDS = {
     $pattern: IDENTIFIER_RE,

test/markup/objectivec/preprocessor.expect.txt

@@ -2,9 +2,9 @@
 <span class="hljs-meta">#<span class="hljs-keyword">define</span> foo 1&lt;&lt;16</span>
 
 <span class="hljs-meta">#<span class="hljs-keyword">ifdef</span> DEBUG</span>
-TYPE1 foo(<span class="hljs-keyword">void</span>)
+TYPE1 foo(<span class="hljs-type">void</span>)
 <span class="hljs-meta">#<span class="hljs-keyword">else</span></span>
-<span class="hljs-keyword">int</span> foo(<span class="hljs-keyword">void</span>)
+<span class="hljs-type">int</span> foo(<span class="hljs-type">void</span>)
 <span class="hljs-meta">#<span class="hljs-keyword">endif</span></span>
 { }
 
@@ -15,5 +15,5 @@ TYPE1 foo(<span class="hljs-keyword">void</span>)
 <span class="hljs-meta">#<span class="hljs-keyword">if</span> MACRO_WITH_STRING_ARG(<span class="hljs-string">&quot;hello \&quot;world\&quot;&quot;</span>)</span>
 <span class="hljs-meta">#<span class="hljs-keyword">elif</span> MULTI_LINE <span class="hljs-comment">/* comment */</span> &lt; \
     EXPRESSION</span>
-<span class="hljs-keyword">int</span> bar;
+<span class="hljs-type">int</span> bar;
 <span class="hljs-meta">#<span class="hljs-keyword">endif</span>  <span class="hljs-comment">// comment</span></span>

test/markup/objectivec/string-literals.expect.txt

@@ -1,7 +1,7 @@
-<span class="hljs-keyword">const</span> <span class="hljs-keyword">char</span> *str = <span class="hljs-string">&quot;Regular \&quot;quoted\&quot; string\n&quot;</span>;
+<span class="hljs-keyword">const</span> <span class="hljs-type">char</span> *str = <span class="hljs-string">&quot;Regular \&quot;quoted\&quot; string\n&quot;</span>;
 <span class="hljs-built_in">NSString</span> *nsstr = <span class="hljs-string">@&quot;Obj-C \&quot;quoted\&quot; string\n&quot;</span>;
-<span class="hljs-keyword">char</span> c = <span class="hljs-string">&#x27;c&#x27;</span>;
-<span class="hljs-keyword">char</span> c2 = <span class="hljs-string">&#x27;&quot;&#x27;</span>;
-<span class="hljs-keyword">char</span> c3 = <span class="hljs-string">&#x27;\&#x27;&#x27;</span>;
-<span class="hljs-keyword">char</span> c4 = <span class="hljs-string">&#x27;\n&#x27;</span>;
-<span class="hljs-keyword">int</span> multibyte_char = <span class="hljs-string">&#x27;abcd&#x27;</span>;
+<span class="hljs-type">char</span> c = <span class="hljs-string">&#x27;c&#x27;</span>;
+<span class="hljs-type">char</span> c2 = <span class="hljs-string">&#x27;&quot;&#x27;</span>;
+<span class="hljs-type">char</span> c3 = <span class="hljs-string">&#x27;\&#x27;&#x27;</span>;
+<span class="hljs-type">char</span> c4 = <span class="hljs-string">&#x27;\n&#x27;</span>;
+<span class="hljs-type">int</span> multibyte_char = <span class="hljs-string">&#x27;abcd&#x27;</span>;