mirror of https://github.com/Wilfred/difftastic/
30 lines
625 B
JavaScript
30 lines
625 B
JavaScript
module.exports = grammar({
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name: 'ruby',
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extras: $ => [
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$.comment,
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$._line_break,
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/[ \t\r]/
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],
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rules: {
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program: $ => repeat(seq($._statement, optional($._terminator))),
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_statement: $ => choice($._expression),
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_expression: $ => choice($._argument),
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_argument: $ => choice($._primary),
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_primary: $ => choice($._variable),
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_variable: $ => choice($.identifier , 'nil', 'self'),
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identifier: $ => seq(repeat(choice('@', '$')), /[a-zA-Z_][a-zA-Z0-9_]*/),
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comment: $ => token(seq('#', /.*/)),
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_line_break: $ => '\n',
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_terminator: $ => choice($._line_break, ';'),
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}
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});
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