정시원andgithub-actions[bot]
83ce26c209
* add minimal Ferro tree-sitter grammar * add temporary tree-sitter generation workflow * generate Ferro tree-sitter parser * drop custom grammar in favor of Rust grammar reuse * remove temporary tree-sitter generation workflow * add Zed extension manifest for Ferro * configure Ferro files for Zed * add Ferro syntax highlighting queries * remove generated custom tree-sitter parser * remove generated custom tree-sitter node types * tighten Ferro Zed highlight queries * add minimal Ferro tree-sitter grammar * point Zed at Ferro grammar * refresh Ferro highlights --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
103 lines
2.5 KiB
JavaScript
103 lines
2.5 KiB
JavaScript
// Minimal Tree-sitter grammar for Ferro syntax highlighting in Zed.
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// This intentionally models lexical structure rather than full Ferro semantics.
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module.exports = grammar({
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name: "ferro",
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extras: $ => [
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/[\s\uFEFF\u2060\u200B]/,
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],
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rules: {
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source_file: $ => repeat(choice(
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$.line_comment,
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$.block_comment,
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$.string_literal,
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$.char_literal,
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$.integer_literal,
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$.builtin,
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$.builtin_type,
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$.keyword,
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$.identifier,
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$.operator,
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$.punctuation,
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)),
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line_comment: _ => token(seq("//", /[^\n]*/)),
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// Ferro block comments may nest. Keeping this rule recursive makes syntax
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// highlighting follow the compiler lexer instead of flattening nested /* */.
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block_comment: $ => seq(
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"/*",
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repeat(choice(
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$.block_comment,
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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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string_literal: _ => token(seq(
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'"',
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repeat(choice(
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/[^"\\\n\r]/,
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/\\(x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|[nrt\\'"0])/,
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)),
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'"',
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)),
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char_literal: _ => token(seq(
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"'",
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choice(
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/[^'\\\n\r]/,
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/\\(x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|[nrt\\'"0])/,
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),
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"'",
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)),
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integer_literal: _ => token(prec(2, choice(
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/0[xX][0-9A-Fa-f_]+/,
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/0[bB][01_]+/,
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/0[oO][0-7_]+/,
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/[0-9][0-9_]*/,
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))),
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builtin: _ => token(prec(3, /@[A-Za-z_][A-Za-z0-9_]*/)),
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builtin_type: _ => token(prec(3, choice(
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"i8", "i16", "i32",
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"u8", "u16", "u32",
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"usize", "isize",
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"bool", "char", "void", "str",
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))),
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keyword: _ => token(prec(3, choice(
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"unit", "import", "pub", "fn", "struct", "packed", "enum", "error",
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"const", "static", "var", "let", "mut",
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"if", "else", "while", "for", "in", "match",
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"return", "break", "continue", "defer",
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"unsafe", "critical", "shared", "atomic", "comptime", "asm",
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"try", "catch", "orelse", "as", "extern",
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"interrupt", "interrupt_safe", "far",
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"true", "false", "null", "undefined",
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"self", "Self", "type",
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"and", "or", "not",
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))),
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identifier: _ => /[A-Za-z_][A-Za-z0-9_]*/,
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operator: _ => token(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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punctuation: _ => token(choice(
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"(", ")", "{", "}", "[", "]", ",", ";", ":", ".",
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)),
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},
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});
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