Intermediate Regular Expressions
William “Bo” Rothwell · Apress eBooks · 2020
Many people consider Perl to stand for P ractical E xtraction and R eport L anguage. This isn't strictly true as Larry Wall originally wanted to call the language Pearl, but he discovered there was already a language that went by that name (PEARL, or Process and experiment automation realtime language, a language created about ten years before Perl).