ec0a69e49b
Improve generate_unaccent_rules.py to handle composed characters whose base is another composed character rather than a plain letter. The net effect of this is to add a bunch of multi-accented Vietnamese characters to unaccent.rules. Original complaint from Kha Nguyen, diagnosis of the script's shortcoming by Thomas Munro. Dang Minh Huong and Michael Paquier Discussion: https://postgr.es/m/CALo3sF6EC8cy1F2JUz=GRf5h4LMUJTaG3qpdoiLrNbWEXL-tRg@mail.gmail.com