For those that enjoy fixing bugs: % echo foo | sed 's/..a|..b|..c|..d|..e|..f|..g|..h|..i|..j|..k|..l|..m|..n|..o|..p//g'
Will crash both native and p9p sed. Yes, I know it is a nonsensical expression, but it is the simplest one that still made it crash, I have lost the original version which was much more complex. Note that providing two characters as input will still crash, but if the input line is a single character it wont crash. I have been meaning to get all the fun of tracking this one down myself for a while, but seems that I never get to it, so I will let others enjoy the fun of fixing it. Peace uriel
