pub fn find(pathname: &str, options: PathnameFindOptions) -> Option<String>Expand description
find the requested pathname using the options search configuration.
Mirrors Perl pathname_find (LaTeXML/Util/Pathname.pm L376-392): directory
search with strict-case match preferred, falling back to a
case-insensitive directory scan. The fallback is required for arxiv
papers shipping uppercase filenames (e.g. PASJ95.STY referenced as
PASJ95.sty) — Perl’s regex pair pushes both strict and /i matches
and returns the strict ones if any exist, otherwise the case-insensitive
matches. kpsewhich is the caller’s responsibility (see
LaTeXML::Package::FindFile_aux).