Lexical Structure

Comments, identifiers, keywords, punctuation, literals, and qualified names in the current Kira lexer and parser.

Comments and Whitespace

The lexer ignores spaces, tabs, carriage returns, and newlines.

The documented comment forms are:

// line comment
/// documentation comment

Identifiers and Qualified Names

Identifiers begin with a letter or _, and may continue with identifier characters after that.

Qualified names are dot-separated identifiers:

Support
bindings.callbacks
FFI.Pointer

Keywords

The current token set reserves these keywords:

annotation, capability, class, construct, enum, struct, extends, function, generated, override, overridable, targets, uses, let, var, return, import, as, if, else, for, in, match, switch, case, default, true, false

Punctuation and Operators

The lexer recognizes these punctuation/operator tokens:

@ ( ) { } [ ] ; , : ? = == ! != && || + - -> * / % . < <= > >=

Literals

The current literal families are:

integer literals
float literals
string literals
boolean literals (true, false)

Strings use double quotes. Arrays use bracketed element syntax such as [1, 2, 3].

Terminators

The parser supports the semicolon-terminated and newline-delimited styles already used across the repo examples.