On Wed, Nov 01, 2023 at 02:02:12PM +0000, Helge Kreutzmann wrote: > Without further ado, the following was found: > > Issue: I<egrep> → B<egrep>(1) Fixed: <https://www.alejandro-colomar.es/src/alx/linux/man-pages/man-pages.git/commit/?h=contrib&id=f43a9ed0f80c18ca8a033883d726bfa78fa5c7d6> Thanks, Alex > > "Regular expressions (\"RE\"s), as defined in POSIX.2, come in two forms: " > "modern REs (roughly those of I<egrep>; POSIX.2 calls these \"extended\" " > "REs) and obsolete REs (roughly those of B<ed>(1); POSIX.2 \"basic\" REs). " > "Obsolete REs mostly exist for backward compatibility in some old programs; " > "they will be discussed at the end. POSIX.2 leaves some aspects of RE syntax " > "and semantics open; \"\\*(dg\" marks decisions on these aspects that may not " > "be fully portable to other POSIX.2 implementations." -- <https://www.alejandro-colomar.es/>
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