Hi Jens,
thanks for your reply! :)
...hmmm...I /think/ I understand the mechanism now...but
if it is as it seems to be...I run into another problem.
Suppose your have a long line of character with groups
of certain chararcter and random caharcters in between.
Something like this
SHDKJSHKDAHSKJDHSKAABBBAAAKAJSHDOQWDASLDLAAAMEINOAAJASLAKJDLSJDLAAJENSAASJHDKASHDK
The pattern here is AA<a word,no space>AA.
The first idea, which came into my mind would be to match with
something like
(regex-match rx#"(AA[A-Z]+AA))
(beside the fact, that I currently dont know, how to match non
greedily): The guide says:
> (regexp-match #rx"([a-z ]+;)*" "lather; rinse; repeat;")
'("lather; rinse; repeat;" " repeat;")
Here, the *-quantified subpattern matches three times, but it is the last
submatch that is returned.
So I would get back AAJENSAA and AAMEINOAA would be matched but not
included in the list of matched strings.
If the line is of unknown length as the count of "AA<word>AA" groups
is, I would not know how to cope with this?
Is there any other way to get back a list of all found matches instead
of only he last one?
Thank you very much in advance for any help!
Cheers
Meino
Jens Axel Søgaard <jensaxelsoega...@gmail.com> [16-11-04 20:28]:
> The first result string is the first matched string. The second result is
> what was matched by the sub expression in the parenthesis.
>
>
> > Den 4. nov. 2016 kl. 20.04 skrev meino.cra...@gmx.de:
> >
> > Hi,
> >
> > Normally I would tend to think, that I am
> > quite familiar with regex and their usage
> > (background: UNIX?Linux, sed, vi/vim, Perl...)
> >
> > Then I played a little with regex-match...and
> > I have to go to school again..,,
> >
> > From the Racket guide:
> >> (regexp-match #rx"([a-z ]+;)*" "lather; rinse; repeat;")
> > '("lather; rinse; repeat;" " repeat;")
> >
> > [a-z ]: matches one lowercase character of the range of a-z and the #\space
> > + : the above one ore more times
> > ; : followed by a ';'
> > () : all the above grouped
> > * : 0 or more times
> > seems obvious..
> >
> > But the result is not (at least for me... ;)
> > '("lather; rinse; repeat;" " repeat;")
> >
> > I understand "lather; rinse; repeat;" as match -
> > it reflects the "greedy behaviour" of regex.
> >
> > But " repeat;" ???
> >
> > Why not "rinse; repeat;" then???
> >
> > I am buffled...<scratching my head>
> >
> > (help!)+
> >
> > :)
> >
> > (Thank you)+ (much)+ in advance!
> > Cheers
> > Meino
> >
> >
> >
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