Textparser – High-performance C parsing engine using Python-compiled grammars

Hi everyone,

I want to share textparser, a high-performance, lightweight text parsing and AST generation library written in pure C.

A lightweight Python compiler tool processes the JSON, runs optimizations, and emits a dense, static C header array.The C runtime engine loads these pre-compiled arrays instantly. It processes raw text strings into an abstract token tree (textparser_token_item) using a highly optimized regular expression engine (crpe2).By offloading the grammar overhead and heavy state-machine parsing logic to the Python build step, the actual runtime C library stays incredibly lean, memory-efficient, and fast.