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Groups > comp.lang.awk > #9939
| From | Ed Morton <mortonspam@gmail.com> |
|---|---|
| Newsgroups | comp.lang.awk |
| Subject | Re: Experiences with match() subexpressions? |
| Date | 2025-04-10 20:07 -0500 |
| Organization | A noiseless patient Spider |
| Message-ID | <vt9q0n$70fm$1@dont-email.me> (permalink) |
| References | <vt7qlq$2ge70$1@dont-email.me> <vt7qs4$2gior$1@dont-email.me> |
On 4/10/2025 2:09 AM, Janis Papanagnou wrote:
> On 10.04.2025 09:06, Janis Papanagnou wrote:
>> I'm looking for subexpressions of regexp-matches using GNU Awk's
>> third parameter of match(). For example
>>
>> data = "R=r1,R=r2,R=r3,E=e"
>> match (data, /^(R=([^,]+),){2,5}E=(.+)$/, arr)
>>
>> The result stored in 'arr' seems to be determined by the static
>> parenthesis structure, so with the pattern repetition {2,5} only
>> the last matched data in the subexpression (r3) seems to persist
>> in arr. - I suppose there's no cute way to achieve what I wanted?
>
> To clarify; what I wanted is access of the values "r1", "r2", "r3",
> and "e" through 'arr'.
Correct, you can't do what you want using just `match()`, it's simply
matching a regexp with capture groups against a string, just like sed does.
There are, of course, several other ways to get `arr[]` populated the
way you want. e.g split(), patsplit(), while(match()), or dynamically
generating the regexp. The best one to choose will depend on the real
values that r1, etc. can have, for example it'd be hard to use split()
if `r1` can be a quoted string that might itself contain similar
substrings such as `data = "R=\"R=r1,R=r2\",R=r2,R=r3,E=e"`.
Ed.
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Experiences with match() subexpressions? Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-10 09:06 +0200
Re: Experiences with match() subexpressions? Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-10 09:09 +0200
Re: Experiences with match() subexpressions? gazelle@shell.xmission.com (Kenny McCormack) - 2025-04-10 11:08 +0000
Re: Experiences with match() subexpressions? Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-10 13:55 +0200
Re: Experiences with match() subexpressions? gazelle@shell.xmission.com (Kenny McCormack) - 2025-04-10 14:04 +0000
Re: Experiences with match() subexpressions? Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-10 23:39 +0200
Re: Experiences with match() subexpressions? arnold@freefriends.org (Aharon Robbins) - 2025-04-11 06:33 +0000
Re: Experiences with match() subexpressions? Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-11 09:10 +0200
Re: Experiences with match() subexpressions? Kaz Kylheku <643-408-1753@kylheku.com> - 2025-04-11 08:22 +0000
Re: Experiences with match() subexpressions? Manuel Collado <mcollado2011@gmail.com> - 2025-04-18 12:03 +0200
Re: Experiences with match() subexpressions? gazelle@shell.xmission.com (Kenny McCormack) - 2025-04-18 12:01 +0000
Re: Experiences with match() subexpressions? Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-18 14:24 +0200
Re: Experiences with match() subexpressions? Kaz Kylheku <643-408-1753@kylheku.com> - 2025-04-11 07:40 +0000
The new matcher (Was: Experiences with match() subexpressions?) gazelle@shell.xmission.com (Kenny McCormack) - 2025-04-11 08:57 +0000
Re: The new matcher (Was: Experiences with match() subexpressions?) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-11 15:50 +0200
Re: Experiences with match() subexpressions? Kaz Kylheku <643-408-1753@kylheku.com> - 2025-04-11 17:54 +0000
Re: Experiences with match() subexpressions? Ed Morton <mortonspam@gmail.com> - 2025-04-10 20:07 -0500
Re: Experiences with match() subexpressions? Ed Morton <mortonspam@gmail.com> - 2025-04-13 12:52 -0500
Nitpicking the code (Was: Experiences with match() subexpressions?) gazelle@shell.xmission.com (Kenny McCormack) - 2025-04-14 18:20 +0000
Re: Nitpicking the code (Was: Experiences with match() subexpressions?) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-14 20:53 +0200
Re: Nitpicking the code (Was: Experiences with match() subexpressions?) Ed Morton <mortonspam@gmail.com> - 2025-04-14 18:55 -0500
Re: Nitpicking the code (Was: Experiences with match() subexpressions?) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-04-15 05:35 +0200
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