lua

Luau syntax highlighter. Pure (text) -> { Segment }. Mirrors the algorithm of the deleted Rust highlight_lua / highlight_lua_code_part pair (renderer.rs pre-Phase-3): ---line comments, single- and double-quoted strings (no escape handling), digit runs with optional dots (no exponent), and identifiers dispatched against the Luau keyword set. Colors flow from ui.getToken("code.<role>") via the active theme, with hardcoded fallbacks matching the deleted Rust constants.

Exports

• highlight(text: string) -> { Segment } — tokenize a Luau string into colored segments for the zui code renderer. The module returns this function directly.

Types:

• Segment = { text: string, color: string, monospace: boolean }

Usage

local highlight = require("@builtin::modules.zui.highlight.lua")
local segments  = highlight("local x = 1 -- pi-ish")

Notes

• Pure function — no side effects, no state. Safe to call any time.
• The ui.getToken lookup runs once per highlighter call (5 FFI calls), then locals are used in the hot tokenize loop — cost is per-call, not per-byte.
• Strings have no escape handling ("a\"b" would terminate at the middle quote). This matches the deleted Rust implementation exactly.