Grapheme Table Generator

This tool processes Unicode Character Database (UCD) XML files to generate efficient, multi-stage trie lookup tables for properties relevant to terminal applications:

Grapheme cluster breaking rules
Line breaking rules (optional)
Character width properties

Usage

Download ucd.nounihan.grouped.zip

Run some equivalent of:

grapheme-table-gen --lang=rust --extended --no-ambiguous --line-breaks path/to/ucd.nounihan.grouped.xml

Place the result in src/unicode/tables.rs