GNU bug report logs - #79300
fold-nbsp test failure

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From: Collin Funk <collin.funk1 <at> gmail.com>
To: 79300 <at> debbugs.gnu.org
Cc: bruno <at> clisp.org
Subject: bug#79300: fold-nbsp test failure
Date: Mon, 25 Aug 2025 19:24:57 -0700

Bruno Haible via GNU coreutils Bug Reports <bug-coreutils <at> gnu.org>
writes:

> Today's CI run reports
>   FAIL: tests/fold/fold-nbsp
> on NetBSD 10 and Solaris 11.4.
>
> The log output in both cases is:
>
> FAIL: tests/fold/fold-nbsp
> ==========================
>
> --- exp1	2025-08-24 06:57:52.605590760 +0000
> +++ out1	2025-08-24 06:57:52.607333160 +0000
> @@ -1,3 +1,3 @@
>  abcdefghij
> -klmnop qrs
> -tuvwxyz
> +klmnop 
> +qrstuvwxyz
> --- exp2	2025-08-24 06:57:52.613841250 +0000
> +++ out2	2025-08-24 06:57:52.615577504 +0000
> @@ -1,3 +1,3 @@
>  abcdefghij
> -klmnop  qr
> -stuvwxyz
> +klmnop  
> +qrstuvwxyz
> FAIL tests/fold/fold-nbsp.sh (exit status: 1)
>
>
> It looks like the &nbsp; character has been treated like a space.
> If you need a correction at the Gnulib level (in the functions iswblank,
> iswspace, c32isblank, or c32isspace), please report this to bug-gnulib.
> Alternatively, you may declare this a "quality of implementation" issue
> and simply disable the test on NetBSD and Solaris.

Thanks.

My initial idea was to check if U+2007 FIGURE SPACE and U+00A0 NO-BREAK
SPACE are blank using grep. But apparently Solaris grep does not handle
multibyte characters. Therefore, FIGURE SPACE cannot be checked. :(

Collin

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