1"break" @keyword
  2"case" @keyword
  3"const" @keyword
  4"continue" @keyword
  5"default" @keyword
  6"do" @keyword
  7"else" @keyword
  8"enum" @keyword
  9"extern" @keyword
 10"for" @keyword
 11"if" @keyword
 12"inline" @keyword
 13"return" @keyword
 14"sizeof" @keyword
 15"static" @keyword
 16"struct" @keyword
 17"switch" @keyword
 18"typedef" @keyword
 19"union" @keyword
 20"volatile" @keyword
 21"while" @keyword
 22
 23"#define" @keyword
 24"#elif" @keyword
 25"#else" @keyword
 26"#endif" @keyword
 27"#if" @keyword
 28"#ifdef" @keyword
 29"#ifndef" @keyword
 30"#include" @keyword
 31(preproc_directive) @keyword
 32
 33"--" @operator
 34"-" @operator
 35"-=" @operator
 36"->" @operator
 37"=" @operator
 38"!=" @operator
 39"*" @operator
 40"&" @operator
 41"&&" @operator
 42"+" @operator
 43"++" @operator
 44"+=" @operator
 45"<" @operator
 46"==" @operator
 47">" @operator
 48"||" @operator
 49
 50"." @delimiter
 51";" @delimiter
 52
 53(string_literal) @string
 54(system_lib_string) @string
 55
 56(null) @constant
 57(number_literal) @number
 58(char_literal) @number
 59
 60(call_expression
 61  function: (identifier) @function)
 62(call_expression
 63  function: (field_expression
 64    field: (field_identifier) @function))
 65(function_declarator
 66  declarator: (identifier) @function)
 67(preproc_function_def
 68  name: (identifier) @function.special)
 69
 70(field_identifier) @property
 71(statement_identifier) @label
 72(type_identifier) @type
 73(primitive_type) @type
 74(sized_type_specifier) @type
 75
 76((identifier) @constant
 77 (#match? @constant "^[A-Z][A-Z\\d_]*$"))
 78
 79(identifier) @variable
 80
 81(comment) @comment
 82; inherits: c
 83
 84[
 85  "in"
 86  "out"
 87  "inout"
 88  "uniform"
 89  "shared"
 90  "layout"
 91  "attribute"
 92  "varying"
 93  "buffer"
 94  "coherent"
 95  "readonly"
 96  "writeonly"
 97  "precision"
 98  "highp"
 99  "mediump"
100  "lowp"
101  "centroid"
102  "sample"
103  "patch"
104  "smooth"
105  "flat"
106  "noperspective"
107  "invariant"
108  "precise"
109] @type.qualifier
110
111"subroutine" @keyword.function
112
113(extension_storage_class) @storageclass
114
115(
116  (identifier) @variable.builtin
117  (#match? @variable.builtin "^gl_")
118)