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YeetCode Language Support

Syntax highlighting for YeetCode file formats.

Supported Languages

Language	Extensions	Description
HJSON	`.hjson`	Human JSON — tolerant data format with unquoted strings, optional commas, comments
YTSON	`.ytson`	Yeet JSON — HJSON with key attributes inspired by Clearsivler HDF
YTGMR	`.ytgmr`, `.yeet`	YeetCode PEG grammar files for parsing custom syntax
YTMPL	`.ytmpl`, `.yt`	YeetCode template files with configurable delimiters

Screenshots

HJSON Data Files

HJSON syntax highlighting

YTSON Schema Files

YTSON syntax highlighting

YTGMR Grammar Files

YTGMR syntax highlighting

YTMPL Template Files

YTMPL syntax highlighting

Color Philosophy

HJSON: Value-emphasized — keys are muted grey, unquoted values are bright blue, quoted strings are orange, numbers/booleans are green. Structure fades, data pops.
YTGMR: Grammar-focused — ::= is a keyword, regex patterns are teal/type-colored, string literals are orange, captures are light blue.
YTMPL: Code-like — <%/%> delimiters are grey, directives are blue keywords, source paths are green, local variables are light blue.

All colors are theme-aware — they adapt to your active VSCode color theme.