51 lines
1.1 KiB
JavaScript
51 lines
1.1 KiB
JavaScript
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/// <reference types="tree-sitter-cli/dsl" />
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const HTML = require('tree-sitter-html/grammar');
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module.exports = grammar(HTML, {
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name: 'astro',
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externals: ($, orig) => [
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$._frontmatter_start,
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$._interpolation_start,
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].concat(orig),
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rules: {
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fragment: ($, orig) => seq(
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optional($.frontmatter),
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orig
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),
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_node: ($, orig) => choice(
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$.interpolation,
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orig,
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),
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frontmatter: $ => seq(
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alias($._frontmatter_start, '---'),
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optional($.raw_text),
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'---'
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),
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attribute: ($, orig) => choice(
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orig,
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seq(
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$.attribute_name,
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'=',
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$.interpolation
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)
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),
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interpolation: $ => seq(
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alias($._interpolation_start, '{'),
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optional($.raw_text),
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'}'
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),
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/* Astro doesn't provide any way to escape curly braces apart from
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* the standard HTML method of e.g. `&x30;` */
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text: $ => /[^<>{}\s]([^<>{}]*[^<>{}\s])?/
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}
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});
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