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I'd have to say that it was not what I expected. I'm also surprised that this hasn't bitten me before. While I know theoretically that * can match empty strings, perl has always seemed to me to do the intuitive thing.
I guess I generally don't replace nothing with something. Usually when I use * I'm either just skipping over white space (or the moral equivalent), or I replace any pattern than has * in it with itself. That is, something like s/A(.*)B/C${1}D/g; Generally, I also try to constrain my patterns more, so I usually avoid constructs like ".*" or "*?", and would write something like s/A([^B]*)B/C${1}D/g; The /s doesn't seem to have anything to do with it, except that, of course, you included a \n in your string. For example, Now string is "gogobgo". In reply to Re: Regex Pop Quiz with .*, /g, and /s
by Thelonius
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