26 lines
710 B
JavaScript
26 lines
710 B
JavaScript
module.exports = grammar({
|
|
name: 'nixshell',
|
|
|
|
rules: {
|
|
source_file: $ => seq($.first_line, repeat($.next_line)),
|
|
|
|
first_line: $ => seq($._shebang_open, $._opt_ws, optional(seq($._env, $._ws)), $._nix_shell),
|
|
next_line: $ => seq($._newline, choice(
|
|
$.annotation_line,
|
|
repeat(/./),
|
|
)),
|
|
annotation_line: $ => seq($._shebang_open, $._opt_ws, $._nix_shell, $.nix_shell_args),
|
|
|
|
// TODO: actually parse nix-shell arguments
|
|
nix_shell_args: $ => ' -i bash',
|
|
|
|
_shebang_open: $ => '#!',
|
|
// TODO: allow `usr/bin/env`, `env`
|
|
_env: $ => '/usr/bin/env',
|
|
_nix_shell: $ => 'nix-shell',
|
|
_ws: $ => / +/,
|
|
_opt_ws: $ => / */,
|
|
_newline: $ => '\n',
|
|
}
|
|
});
|