Module syntax_highlighting 

Token-based syntax highlighting for the REPL input bar and output.

Lexes the input with the real rl lexer and maps each TokenType to a ratatui [Style]. Gaps between token spans are emitted as unstyled raw spans to preserve whitespace exactly. On lex failure the entire input is returned as a single red span.

Color scheme

Token group	Color / modifier
Control flow	Cyan bold
Declarations	Cyan italic
Import keywords	Cyan dim
Type keywords	Light blue italic
Logical operators	Yellow bold
Number literals	Magenta
String literals	Yellow
Char literals	Light yellow
Bool literals	Magenta italic
null	Dark gray italic
Comparison ops	Light cyan
Punctuation/braces	Dark gray
Identifiers	White

Functions

highlight

Lexes input and returns a vec of syntax-highlighted [Span]s.

token_color 🔒

Returns the ratatui [Style] for a given TokenType.