Many optimizations and new syntax files

syntax_files/c.yaml

@@ -7,6 +7,7 @@ rules:
     - identifier: "\\b[A-Z_][0-9A-Z_]+\\b" 
     - type: "\\b(float|double|char|int|short|long|sizeof|enum|void|static|const|struct|union|typedef|extern|(un)?signed|inline)\\b"
     - type: "\\b((s?size)|((u_?)?int(8|16|32|64|ptr)))_t\\b"
+    - type.extended: "\\b(bool)\\b"
     - statement: "\\b(typename|mutable|volatile|register|explicit)\\b"
     - statement: "\\b(for|if|while|do|else|case|default|switch)\\b"
     - statement: "\\b(try|throw|catch|operator|new|delete)\\b"
@@ -19,19 +20,20 @@ rules:
     - statement: "__attribute__[[:space:]]*\\(\\([^)]*\\)\\)"
     - statement: "__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__"
       # Operator Color
-    - statement: "([.:;,+*|=!\\%]|<|>|/|-|&)" 
+    - symbol.operator: "([.:;,+*|=!\\%]|<|>|/|-|&)" 
+    - symbol.brackets: "[(){}]|\\[|\\]"
     - constant.number: "(\\b[0-9]+\\b|\\b0x[0-9A-Fa-f]+\\b)"
     - constant.number: "NULL"
 
     - constant.string:
         start: "\""
-        end: "\""
+        end: "(?<!\\\\)\""
         rules:
             - constant.specialChar: "\\\\."
 
     - constant.string:
         start: "'"
-        end: "'"
+        end: "(?<!\\\\)'"
         rules:
             - preproc: "..+"
             - constant.specialChar: "\\\\."
@@ -47,3 +49,4 @@ rules:
         end: "\\*/"
         rules:
             - todo: "(TODO|XXX|FIXME):?"
+