Locally add prismjs

node_modules/prismjs/components/prism-gn.js

@@ -0,0 +1,51 @@
+// 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;