GNU bug report logs - #48480
[a-Z] is not a valid regex range in 3.0.7

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Marius Bakke <marius <at> gnu.org>
To: bug-guile <at> gnu.org
Subject: [a-Z] is not a valid regex range in 3.0.7
Date: Mon, 17 May 2021 17:09:45 +0200

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Hello,

(make-regexp "[a-Z]") fails in Guile 3.0.7 with "Invalid range end".

This is a regression since 3.0.5.

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Message #8 received at 48480 <at> debbugs.gnu.org (full text, mbox):

From: Taylan Kammer <taylan.kammer <at> gmail.com>
To: Marius Bakke <marius <at> gnu.org>, 48480 <at> debbugs.gnu.org
Subject: Re: bug#48480: [a-Z] is not a valid regex range in 3.0.7
Date: Mon, 17 May 2021 17:33:47 +0200

On 17.05.2021 17:09, Marius Bakke wrote:
> Hello,
> 
> (make-regexp "[a-Z]") fails in Guile 3.0.7 with "Invalid range end".
> 
> This is a regression since 3.0.5.
> 

I think that's normal.

  $ grep -E '[a-Z]'
  grep: Invalid range end

You're supposed to use [a-zA-Z] or better yet, something locale-aware
such as [[:alpha:]].

I get the same error on Guile 2.2, are you sure that it ever worked?

-- 
Taylan

Message #11 received at 48480 <at> debbugs.gnu.org (full text, mbox):

From: dsmich <at> roadrunner.com
To: "'Marius Bakke'" <marius <at> gnu.org>
Cc: "'48480 <at> debbugs.gnu.org'" <48480 <at> debbugs.gnu.org>
Subject: RE: bug#48480: [a-Z] is not a valid regex range in 3.0.7
Date: Mon, 17 May 2021 15:39:38 +0000

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This *is* the error returned by the underlying C library. For example:

#include 
#include 
#include 

int main() {
 char buf[128] = {0};
 regex_t rx = {0};
 int status = regcomp(&rx, "[a-Z]", REG_EXTENDED);
 size_t ret = regerror(status, &rx, buf, sizeof buf);
 printf("status: %d, ret: %d, buf: [%s]n", status, ret, buf);
 return 0;
}

gcc -o rx rx.c && ./rx
status: 11, ret: 18, buf: [Invalid range end]

--Dale

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Message #16 received at 48480-done <at> debbugs.gnu.org (full text, mbox):

From: Marius Bakke <marius <at> gnu.org>
To: Taylan Kammer <taylan.kammer <at> gmail.com>, 48480-done <at> debbugs.gnu.org
Cc: dsmich <at> roadrunner.com
Subject: Re: bug#48480: [a-Z] is not a valid regex range in 3.0.7
Date: Mon, 17 May 2021 17:57:05 +0200

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Taylan Kammer <taylan.kammer <at> gmail.com> skriver:

> On 17.05.2021 17:09, Marius Bakke wrote:
>> Hello,
>> 
>> (make-regexp "[a-Z]") fails in Guile 3.0.7 with "Invalid range end".
>> 
>> This is a regression since 3.0.5.
>> 
>
> I think that's normal.
>
>   $ grep -E '[a-Z]'
>   grep: Invalid range end
>
> You're supposed to use [a-zA-Z] or better yet, something locale-aware
> such as [[:alpha:]].
>
> I get the same error on Guile 2.2, are you sure that it ever worked?

Oh indeed, this appears to be because of a behavior change in glibc.

Closing the issue, thanks for the prompt feedback!

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