hello, > but note that BREs are not a strict subset of EREs
I have to admit that's the way I saw BRE so thanks a lot for noticing me. I the same mood: I realized recently that no implementation of awk seems to implement quantifiers which is really desapointing. I don't realize those things that much because in many cases, perl (with flags like -p, -n, -F, -s, -0 ) let me provide shorter and cleaner solutions than the grep|sed|awk equivalent. > The GNU project turned BREs and EREs into one and the same feature > set in their implementation, just with different syntaxes, causing > a great deal of confusion. It would be nice to compare all those langages. I just googled and found this: https://gist.github.com/CMCDragonkai/6c933f4a7d713ef712145c5eb94a1816 Regards and thanks again for enlightening me today. Marc
