How: Regex to LLMs

One-shot conversion

1. 1

   Extract the text layer

   Modern PDFs embed text. The structure still has to be parsed into XHTML.

2. 2

   LLM writes structured XHTML

   LLMs are built on transformers, which model structure across a whole chapter.

3. 3

   Deterministic quality checks

   Programs diff the PDF text against the HTML to confirm fidelity.

r'^SEC\. (\d+)\.'

<section id="sec-101-1">

Examples

Same text, two formats