bison

Author: DmitrySharabin

src/languages/bison.js

@@ -1,53 +1,49 @@
-import { insertBefore } from '../util/language-util.js';
 import c from './c.js';
 
 /** @type {import('../types.d.ts').LanguageProto<'bison'>} */
 export default {
 	id: 'bison',
 	base: c,
 	grammar ({ base }) {
-		insertBefore(base, 'comment', {
-			'bison': {
-				// This should match all the beginning of the file
-				// including the prologue(s), the bison declarations and
-				// the grammar rules.
-				pattern: /^(?:[^%]|%(?!%))*%%[\s\S]*?%%/,
-				inside: {
-					'c': {
-						// Allow for one level of nested braces
-						pattern: /%\{[\s\S]*?%\}|\{(?:\{[^}]*\}|[^{}])*\}/,
-						inside: /** @type {Grammar} */ ({
-							'delimiter': {
-								pattern: /^%?\{|%?\}$/,
-								alias: 'punctuation',
-							},
-							'bison-variable': {
-								pattern: /[$@](?:<[^\s>]+>)?[\w$]+/,
-								alias: 'variable',
-								inside: {
-									'punctuation': /<|>/,
+		return {
+			$insert: {
+				'bison': {
+					$before: 'comment',
+					// This should match all the beginning of the file
+					// including the prologue(s), the bison declarations and
+					// the grammar rules.
+					pattern: /^(?:[^%]|%(?!%))*%%[\s\S]*?%%/,
+					inside: {
+						'c': {
+							// Allow for one level of nested braces
+							pattern: /%\{[\s\S]*?%\}|\{(?:\{[^}]*\}|[^{}])*\}/,
+							inside: {
+								'delimiter': {
+									pattern: /^%?\{|%?\}$/,
+									alias: 'punctuation',
+								},
+								'bison-variable': {
+									pattern: /[$@](?:<[^\s>]+>)?[\w$]+/,
+									alias: 'variable',
+									inside: {
+										'punctuation': /<|>/,
+									},
 								},
+								$rest: 'c',
 							},
-							$rest: /** @type {Grammar['$rest']} */ ('c'),
-						}),
-					},
-					'comment': base.comment,
-					'string': base.string,
-					'property': /\S+(?=:)/,
-					'keyword': /%\w+/,
-					'number': {
-						pattern: /(^|[^@])\b(?:0x[\da-f]+|\d+)/i,
-						lookbehind: true,
+						},
+						'comment': base.comment,
+						'string': base.string,
+						'property': /\S+(?=:)/,
+						'keyword': /%\w+/,
+						'number': {
+							pattern: /(^|[^@])\b(?:0x[\da-f]+|\d+)/i,
+							lookbehind: true,
+						},
+						'punctuation': /%[%?]|[|:;\[\]<>]/,
 					},
-					'punctuation': /%[%?]|[|:;\[\]<>]/,
 				},
 			},
-		});
-
-		return {};
+		};
 	},
 };
-
-/**
- * @typedef {import('../types.d.ts').Grammar} Grammar
- */