e3dfc2cdca
- Planning to move the highlight responsibility to the highlight query - Stop trying to parse frequently used commands - One test is failing because of `unquoted_argument`, planning to fix
92 lines
3.4 KiB
JavaScript
92 lines
3.4 KiB
JavaScript
commands = [
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"if",
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"elseif",
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"else",
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"endif",
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"foreach",
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"endforeach",
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"while",
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"endwhile",
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"function",
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"endfunction",
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"macro",
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"endmacro",
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];
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module.exports = grammar({
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name: "cmake",
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externals: ($) => [$.bracket_argument, $.bracket_comment, $.line_comment],
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extras: ($) => [/[\s\n\r]/, $.bracket_comment, $.line_comment],
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rules: {
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source_file: ($) => repeat($._command_invocation),
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escape_sequence: ($) => choice($._escape_identity, $._escape_encoded, $._escape_semicolon),
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_escape_identity: (_) => /\\[^A-Za-z0-9;]/,
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_escape_encoded: (_) => choice("\\t", "\\r", "\\n"),
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_escape_semicolon: (_) => ";",
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variable: ($) => prec.left(repeat1(choice(/[a-zA-Z0-9/_.+-]/, $.escape_sequence))),
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variable_ref: ($) => choice($.normal_var, $.env_var, $.cache_var),
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normal_var: ($) => seq("${", $.variable, "}"),
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env_var: ($) => seq("$ENV", "{", $.variable, "}"),
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cache_var: ($) => seq("$CACHE", "{", $.variable, "}"),
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argument: ($) => choice($.bracket_argument, $.quoted_argument, $.unquoted_argument),
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quoted_argument: ($) => seq('"', optional($.quoted_element), '"'),
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quoted_element: ($) => repeat1(choice($.variable_ref, /[^\\"]/, $.escape_sequence)),
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unquoted_argument: ($) => prec.right(repeat1(choice($.variable_ref, /[^\s\n\r()#\"\\]/, $.escape_sequence))),
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if_command: ($) => command($.if, repeat(choice($.argument))),
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elseif_command: ($) => command($.elseif, repeat(choice($.argument))),
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else_command: ($) => command($.else, optional(choice($.argument))),
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endif_command: ($) => command($.endif, optional(choice($.argument))),
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if_condition: ($) =>
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seq($.if_command, repeat(choice($._command_invocation, $.elseif_command, $.else_command)), $.endif_command),
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foreach_command: ($) => command($.foreach, repeat(choice($.argument))),
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endforeach_command: ($) => command($.endforeach, optional($.argument)),
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foreach_loop: ($) => seq($.foreach_command, repeat($._command_invocation), $.endforeach_command),
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while_command: ($) => command($.while, repeat(choice($.argument))),
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endwhile_command: ($) => command($.endwhile, optional(choice($.argument))),
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while_loop: ($) => seq($.while_command, repeat($._command_invocation), $.endwhile_command),
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function_command: ($) => command($.function, repeat($.argument)),
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endfunction_command: ($) => command($.endfunction, repeat($.argument)),
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function_def: ($) => seq($.function_command, repeat($._command_invocation), $.endfunction_command),
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macro_command: ($) => command($.macro, repeat($.argument)),
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endmacro_command: ($) => command($.endmacro, repeat($.argument)),
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macro_def: ($) => seq($.macro_command, repeat($._command_invocation), $.endmacro_command),
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normal_command: ($) => command($.identifier, repeat($.argument)),
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_command_invocation: ($) =>
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choice($.normal_command, $.if_condition, $.foreach_loop, $.while_loop, $.function_def, $.macro_def),
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...commandNames(...commands),
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identifier: (_) => /[A-Za-z_][A-Za-z0-9_]*/,
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integer: (_) => /[+-]*\d+/,
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},
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});
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function iregex(s) {
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return new RegExp(Array.from(s).reduce((acc, value) => acc + `[${value.toLowerCase()}${value.toUpperCase()}]`, ""));
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}
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function commandName(name) {
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return { [name]: (_) => iregex(name) };
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}
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function commandNames(...names) {
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return Object.assign({}, ...names.map(commandName));
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}
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function command(name_rule, arg_rule) {
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return seq(name_rule, "(", arg_rule, ")");
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}
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