Creating A Code Box

[boatbomber (Zack Williams)]

Thanks for pinging me, @SurpriseInventor!

As someone said earlier, you need a lexer to break the text down into it’s Lua “components” aka tokens.

Lucky for you, I open sourced one!

Lexer for RBX Lua

Sorry for bumping this very old post, but I never stopped working on this! It’s a major part of my game Lua Learning so I kept making little tweaks. @pobammer made some optimizations, making it noticeably faster. I also updated the builtin dictionary to include the changes that Roblox has made over time! Major Update August 6th 2020: Huge rework to make improvements to lexer behavior. It used to return operators and unknowns as tokens themselves, so your implementation had to handle rando…

Using that, you can run the TextBox.Text through the lexer and create colored TextLabels based on the resulting token stream for your syntax highlighting!