22 lines
649 B
JavaScript
22 lines
649 B
JavaScript
module.exports = grammar({
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name: 'nixshell',
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rules: {
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source_file: $ => seq($.first_line, repeat($.non_first_line)),
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first_line: $ => seq($.shebang_open, $.opt_ws, optional(seq($.env, $.ws)), $.nix_shell),
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non_first_line: $ => seq($.newline, $.annotation_line),
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annotation_line: $ => seq($.shebang_open, $.opt_ws, $.nix_shell, $.nix_shell_args),
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embedded_script_line: $ => /.*/,
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shebang_open: $ => /#!/,
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// TODO: allow `usr/bin/env`, `env`
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env: $ => '/usr/bin/env',
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nix_shell: $ => 'nix-shell',
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nix_shell_args: $ => ' -i bash',
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ws: $ => / +/,
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opt_ws: $ => / */,
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newline: $ => '\n',
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}
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});
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