add variable support from vscode syntax

Author: foxnne

Syntaxes/Zig.YAML-tmLanguage

@@ -347,6 +347,21 @@ repository:
     match: '(?<!\w|\)|\?|\}|\]|\*)(\.(?:[a-zA-Z_]\w*\b|@\"[^\"]*\"))(?!\(|\s*=[^=>])'
     name: constant.language.enum
 
+  variables:
+    name: meta.variable.zig
+    patterns:
+      - match: '\b[_A-Z][_A-Z0-9]+\b'
+        name: variable.constant.zig
+
+      - match: '\b[_a-zA-Z][_a-zA-Z0-9]*_t\b'
+        name: entity.name.type.zig
+
+      - match: '\b[A-Z][a-zA-Z0-9]*\b'
+        name: entity.name.type.zig
+
+      - match: '\b[_a-zA-Z][_a-zA-Z0-9]*\b'
+        name: variable.zig
+
   dummy_main:
     patterns:
       - include: '#label'
@@ -366,3 +381,4 @@ repository:
       - include: '#function_def'
       - include: '#function_call'
       - include: '#enum_literal'
+      - include: '#variables'

Syntaxes/Zig.sublime-syntax

@@ -99,6 +99,7 @@ contexts:
     - include: function_def
     - include: function_call
     - include: enum_literal
+    - include: variables
   enum_literal:
     - match: '(^|\s+)(\.(?:[a-zA-Z_]\w*\b|@\"[^\"]*\"))(?!\(|\s*=[^=>])'
       scope: constant.language.enum
@@ -270,3 +271,16 @@ contexts:
   support:
     - match: '@[^\"\d][a-zA-Z_]\w*\b'
       scope: support.function.zig
+  variables:
+    - match: '\b[_A-Z][_A-Z0-9]+\b'
+      scope: variable.constant.zig
+
+    - match: '\b[_a-zA-Z][_a-zA-Z0-9]*_t\b'
+      scope: entity.name.type.zig
+
+    - match: '\b[A-Z][a-zA-Z0-9]*\b'
+      scope: entity.name.type.zig
+
+    - match: '\b[_a-zA-Z][_a-zA-Z0-9]*\b'
+      scope: variable.zig
+

Syntaxes/Zig.tmLanguage

@@ -310,6 +310,10 @@
 					<key>include</key>
 					<string>#enum_literal</string>
 				</dict>
+				<dict>
+					<key>include</key>
+					<string>#variables</string>
+				</dict>
 			</array>
 		</dict>
 		<key>enum_literal</key>
@@ -837,6 +841,38 @@
 			<key>name</key>
 			<string>support.function.zig</string>
 		</dict>
+		<key>variables</key>
+		<dict>
+			<key>name</key>
+			<string>meta.variable.zig</string>
+			<key>patterns</key>
+			<array>
+				<dict>
+					<key>match</key>
+					<string>\b[_A-Z][_A-Z0-9]+\b</string>
+					<key>name</key>
+					<string>variable.constant.zig</string>
+				</dict>
+				<dict>
+					<key>match</key>
+					<string>\b[_a-zA-Z][_a-zA-Z0-9]*_t\b</string>
+					<key>name</key>
+					<string>entity.name.type.zig</string>
+				</dict>
+				<dict>
+					<key>match</key>
+					<string>\b[A-Z][a-zA-Z0-9]*\b</string>
+					<key>name</key>
+					<string>entity.name.type.zig</string>
+				</dict>
+				<dict>
+					<key>match</key>
+					<string>\b[_a-zA-Z][_a-zA-Z0-9]*\b</string>
+					<key>name</key>
+					<string>variable.zig</string>
+				</dict>
+			</array>
+		</dict>
 	</dict>
 	<key>scopeName</key>
 	<string>source.zig</string>