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// https://gn.googlesource.com/gn/+/refs/heads/main/docs/reference.md#grammar
Prism.languages.gn = {
comment: {
pattern: /#.*/,
greedy: true,
},
'string-literal': {
pattern: /(^|[^\\"])"(?:[^\r\n"\\]|\\.)*"/,
lookbehind: true,
greedy: true,
inside: {
interpolation: {
pattern:
/((?:^|[^\\])(?:\\{2})*)\$(?:\{[\s\S]*?\}|[a-zA-Z_]\w*|0x[a-fA-F0-9]{2})/,
lookbehind: true,
inside: {
number: /^\$0x[\s\S]{2}$/,
variable: /^\$\w+$/,
'interpolation-punctuation': {
pattern: /^\$\{|\}$/,
alias: 'punctuation',
},
expression: {
pattern: /[\s\S]+/,
inside: null, // see below
},
},
},
string: /[\s\S]+/,
},
},
keyword: /\b(?:else|if)\b/,
boolean: /\b(?:false|true)\b/,
'builtin-function': {
// a few functions get special highlighting to improve readability
pattern:
/\b(?:assert|defined|foreach|import|pool|print|template|tool|toolchain)(?=\s*\()/i,
alias: 'keyword',
},
function: /\b[a-z_]\w*(?=\s*\()/i,
constant:
/\b(?:current_cpu|current_os|current_toolchain|default_toolchain|host_cpu|host_os|root_build_dir|root_gen_dir|root_out_dir|target_cpu|target_gen_dir|target_os|target_out_dir)\b/,
number: /-?\b\d+\b/,
operator: /[-+!=<>]=?|&&|\|\|/,
punctuation: /[(){}[\],.]/,
};
Prism.languages.gn['string-literal'].inside['interpolation'].inside[
'expression'
].inside = Prism.languages.gn;
Prism.languages.gni = Prism.languages.gn;
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