Make clean_frag_id robust to frag ID segment-length variations #9
Description
Problem
- clean_frag_id currently rebuilds IDs by removing characters at hard-coded positions, e.g., converting B.10.10.100a to B1010.100a via fixed slicing. If Pelicun or future IDs vary in the number of digits per segment, this will break.
Proposed solution
- Parse IDs by splitting on '.' and recombining without the first two dots: ''.join(parts) after parts = frag_id.split('.') with any needed normalization. Centralize all period-removal logic to call this function.
Permalink to context in #8 : https://github.com/OpenPBEE/Functional-Recovery-Python/pull/8/changes#diff-09ddbe9b47cd801ac2851f14da73cf459f44c2cd8c6d3f2a557541ff2a6bc4b2R506