48 lines
754 B
JavaScript
48 lines
754 B
JavaScript
module.exports = grammar({
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name: 'dust',
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rules: {
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source_file: $ => repeat(choice($.comment, $.expression)),
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comment: $ => /(#)(.+?)([\n\r])/,
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expression: $ => choice(
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$.identifier,
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$.integer,
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$.string,
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$.list,
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$.macro,
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seq($.identifier, $.operator, $.identifier)
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),
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identifier: $ => /[a-zA-Z|_|.]+(_[a-zA-Z]+)*/,
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operator: $ => choice(
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'=',
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'-',
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'+',
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';',
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'/',
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'|',
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'&'
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),
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integer: $ => /\d/,
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string: $ => /"(.*?)\"/,
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function: $ => /'(.*?)\'/,
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list: $ => seq(
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'(',
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repeat1(seq($.expression, optional(','))),
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')'
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),
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macro: $ => choice(
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"assert",
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"assert_equal"
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)
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}
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});
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