Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx> writes: > Despite our CodingGuidelines dictates that grep -E and or grep \{m,n\} > are forbidden. Our code bases uses them all over place. That makes it sounds like rules dictating and coders resisting, but that is not what is happening. Portability guidelines need updating as tools on different platforms change over time. An effort like this series is very much appreciated from time to time.