[OS X TeX] [OT] Need Perl Regex for...
amunn at msu.edu
Sat Sep 20 20:17:31 CEST 2008
At 12:11 PM -0500 9/20/08, Herbert Schulz wrote:
>Suppose I have a sentence like
>Here are some words <fnameA>.<fnameB>.<ext> and more text afterward.
>where <fnameA> and <fnameb> may have spaces/tabs in them and you may
>assume <ext> has no spaces/tabs. Can one of you Perl experts out
>there (I know you're there!) give me a Perl regex that would pick
>out only the <fnameA>.<fnameB.<ext> part of the line. Can it be
>generalized to include multiple <fname> sections separated by `.'
Unless the "Here are some words" part is some sort of fixed string
that you could identify, I don't think there's any way to distinguish
a word that is part of the "Here are some words" part from a word
that is part of <fnameA>, if <fnameA> is allowed to contain spaces.
I.e. if fnameA = My file.ext
how can you tell whether "My" in "Here are some words My file.ext "
belongs to the filename or not?
If spaces are prohibited, then the regex
will pick out sequences of <fnameA>.<fnameB>.ext for arbitrary
numbers of <fname> assuming ext is always 3 characters. But I don't
see a way around the spaces problem. (But I'm prepared to be amazed
by someone else's answer!)
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