Comment by ziml77
And with the POSIX EREs, everything except the syntax for character classes will carry over to other common Regex dialects.
And with the POSIX EREs, everything except the syntax for character classes will carry over to other common Regex dialects.
Many loosely compatible (so, not compatible if we are strict..) implementations are a problem, but awareness and testing helps.
All in all, my life would be miserable if I would not have regexp available in grep/sed/editor/ide/java/python, their usefulness trump any such inconveniences.
I'll just leave this here
"The Insanity Of Linux's Regular Expressions " https://www.youtube.com/watch?v=ys7yUyyQA-Y