In the middle of developing my own high-level binding for wasmtime in D, I had the thought of repurposing all that XML lexer thing into JIT compiling Lua (which was my first candidate for a scripting engine, until it became apparent how much the community views integers as a “red haired stepchild”), but instead I wrote yet another SDLang implementation, this time with a simple but proper DOM (not as overcomplicated as the standard XML DOM, but supports comments).