tiny.syn.Mode

1/// One kind of comment or string that is still open at the end of a line. Each mode has its own2/// closing delimiter, which the next line looks for. A caller reads it from `State.mode` to learn3/// which comment or string a line left open.4pub const Mode = enum {5    /// An open `/*` comment, closed by `*/`. C, C++, C#, Java, JavaScript, TypeScript, Go, Rust,6    /// PHP, Swift, Kotlin, Scala, Dart, Zig and CSS can leave it open.7    block_comment,8    /// An open Haskell `{-` comment, closed by `-}`.9    haskell_comment,10    /// An open Lua `--[[` comment, closed by `]]`.11    lua_comment,12    /// An open `<!--` comment in HTML, XML, Vue or Svelte, closed by `-->`.13    markup_comment,14    /// An open Python string that began with `'''`, closed by `'''`. The opening quotes may follow15    /// a prefix such as `f` or `rb`.16    python_triple_single,17    /// An open Python string that began with `"""`, closed by `"""`.18    python_triple_double,19    /// An open TOML literal string that began with `'''`, closed by `'''`. A backslash has no20    /// special meaning inside it.21    toml_triple_single,22    /// An open TOML basic string that began with `"""`, closed by `"""`. A backslash escapes the23    /// next character, so `\"""` leaves the string open.24    toml_triple_double,2526    /// Returns true when the scanner for `language` can leave this mode open. `State` checks it27    /// before it stores a mode, and the tests use it to pin down which language can leave which28    /// mode open. A test compares the answer for every language and mode against a fixed list of29    /// pairs.30    pub fn admittedBy(self: Mode, language: Language) bool {31        return switch (self) {32            .block_comment => switch (language) {33                .zig,34                .c,35                .cpp,36                .csharp,37                .java,38                .javascript,39                .typescript,40                .go,41                .rust,42                .php,43                .swift,44                .kotlin,45                .scala,46                .dart,47                .css,48                => true,49                else => false,50            },51            .haskell_comment => language == .haskell,52            .lua_comment => language == .lua,53            .markup_comment => switch (language) {54                .html, .xml, .vue, .svelte => true,55                else => false,56            },57            .python_triple_single,58            .python_triple_double,59            => language == .python,60            .toml_triple_single,61            .toml_triple_double,62            => language == .toml,63        };64    }65};

1pub const Mode = state.Mode;