Many optimizations and new syntax files

syntax_files/cpp.yaml

@@ -15,25 +15,26 @@ rules:
     - preproc: "^[[:space:]]*#[[:space:]]*(define|pragma|include|(un|ifn?)def|endif|el(if|se)|if|warning|error)"
     - constant: "('([^'\\\\]|(\\\\[\"'abfnrtv\\\\]))'|'\\\\(([0-3]?[0-7]{1,2}))'|'\\\\x[0-9A-Fa-f]{1,2}')"
 
-      ##
-      ## GCC builtins
+      # GCC builtins
     - statement: "(__attribute__[[:space:]]*\\(\\([^)]*\\)\\)|__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__)"
 
-      #Operator Color
-    - statement: "([.:;,+*|=!\\%]|<|>|/|-|&)" 
+      # Operator Color
+    - symbol.operator: "([.:;,+*|=!\\%]|<|>|/|-|&)" 
+      # Parenthetical Color
+    - symbol.brackets: "[(){}]|\\[|\\]"
 
     - constant.number: "(\\b[0-9]+\\b|\\b0x[0-9A-Fa-f]+\\b)"
-    - constant.number: "(\\b(true|false)\\b|NULL)"
+    - constant.bool: "(\\b(true|false)\\b|NULL)"
 
     - constant.string:
         start: "\""
-        end: "\""
+        end: "(?<!\\\\)\""
         rules:
             - constant.specialChar: "\\\\."
 
     - constant.string:
         start: "'"
-        end: "'"
+        end: "(?<!\\\\)'"
         rules:
             - preproc: "..+"
             - constant.specialChar: "\\\\."
@@ -49,3 +50,4 @@ rules:
         end: "\\*/"
         rules:
             - todo: "(TODO|XXX|FIXME):?"
+