Cerium
Syntax highlighting for Cerium, a
small systems language with Rust's shape. Every .ce file — the compiler's
own std, its tests, yours — gets colored.
What it colors
- Comments —
// to the end of the line, and /* */ blocks that nest,
the way the language's lexer reads them.
- Strings —
"…", plus the three prefixed forms: c"…" for a
NUL-terminated C string, r"…" for a raw one with no escapes, cr"…" for
both. Multiline """…""" included, with its prefixes. Escapes
(\n \t \r \0 \' \" \\ \xNN) are picked out; an escape the language does
not have is marked.
- Byte literals —
'x', '\n'.
- Numbers — decimal,
0x / 0o / 0b, underscores between digits,
floats with an exponent. A tuple index (t.1.0) reads as two integers,
not as a fraction.
- Attributes —
#[extern(C)], #[align(16)], #[packed], #[noreturn]…
- Built-ins —
@sizeof, @alignof, @offset, @cast, @typeinfo,
@typeof, @field, @count, @take, @compileError, @slice, and the
$$ splice.
- Types — the primitives (
i8…i128, u8…u128, isize, usize,
f32, f64, bool, voidptr) in their own color, and a capital
identifier as a type or a variant.
Also: bracket matching, // and /* */ toggling, and indentation that
follows the braces.
Installing from source
code --install-extension cerium-0.0.1.vsix
or, to run it out of the checkout:
code --extensionDevelopmentPath=editors/vscode <your project>
Known limits
Highlighting only. No language server yet — no completion, no diagnostics,
no go-to-definition. The grammar is a TextMate one, so it reads a line at a
time and trusts the shapes above rather than the parser.
License
MIT.
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