126 lines
2.3 KiB
JavaScript
126 lines
2.3 KiB
JavaScript
module.exports = grammar({
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name: 'html',
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extras: $ => [
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$.comment,
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/\s+/,
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],
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externals: $ => [
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$._start_tag_name,
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$._script_start_tag_name,
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$._style_start_tag_name,
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$._end_tag_name,
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$.erroneous_end_tag_name,
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'/>',
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$._implicit_end_tag,
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$.raw_text,
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$.comment,
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],
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rules: {
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fragment: $ => repeat($._node),
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doctype: $ => seq(
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'<!',
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alias($._doctype, 'doctype'),
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/[^>]+/,
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'>'
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),
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_doctype: $ => /[Dd][Oo][Cc][Tt][Yy][Pp][Ee]/,
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_node: $ => choice(
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$.doctype,
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$.text,
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$.element,
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$.script_element,
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$.style_element,
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$.erroneous_end_tag
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),
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element: $ => choice(
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seq(
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$.start_tag,
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repeat($._node),
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choice($.end_tag, $._implicit_end_tag)
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),
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$.self_closing_tag
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),
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script_element: $ => seq(
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alias($.script_start_tag, $.start_tag),
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optional($.raw_text),
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$.end_tag
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),
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style_element: $ => seq(
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alias($.style_start_tag, $.start_tag),
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optional($.raw_text),
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$.end_tag
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),
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start_tag: $ => seq(
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'<',
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alias($._start_tag_name, $.tag_name),
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repeat($.attribute),
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'>'
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),
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script_start_tag: $ => seq(
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'<',
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alias($._script_start_tag_name, $.tag_name),
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repeat($.attribute),
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'>'
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),
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style_start_tag: $ => seq(
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'<',
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alias($._style_start_tag_name, $.tag_name),
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repeat($.attribute),
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'>'
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),
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self_closing_tag: $ => seq(
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'<',
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alias($._start_tag_name, $.tag_name),
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repeat($.attribute),
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'/>'
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),
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end_tag: $ => seq(
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'</',
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alias($._end_tag_name, $.tag_name),
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'>'
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),
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erroneous_end_tag: $ => seq(
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'</',
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$.erroneous_end_tag_name,
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'>'
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),
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attribute: $ => seq(
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$.attribute_name,
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optional(seq(
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'=',
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choice(
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$.attribute_value,
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$.quoted_attribute_value
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)
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))
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),
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attribute_name: $ => /[^<>"'/=\s]+/,
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attribute_value: $ => /[^<>"'=\s]+/,
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quoted_attribute_value: $ => choice(
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seq("'", optional(alias(/[^']+/, $.attribute_value)), "'"),
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seq('"', optional(alias(/[^"]+/, $.attribute_value)), '"')
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),
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text: $ => /[^<>\s]([^<>]*[^<>\s])?/
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}
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});
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