DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 581LOPqm3022517
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org BB2BC3858D21
Message-ID: <f69e0dc9-ed4a-4871-bd4a-a6bcf0d6edc0@gmx.com>
Date: Mon, 1 Sep 2025 22:23:53 +0100
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Subject: Re: bash 5.2.21-1: a bug in [0-9] expansion
To: cygwin AT cygwin DOT com
References: <CADxVF5dR-0Z-fvjTNkMfC1U=12T7WfuipiODhuZNizQDUPL5AA AT mail DOT gmail DOT com>
 <50ef4d1a-fab5-4711-b17a-5d26e74c4881 AT SystematicSW DOT ab DOT ca>
Content-Language: en-GB
Autocrypt: addr=sam DOT edge AT gmx DOT com; keydata=
 xjMEZpaFCBYJKwYBBAHaRw8BAQdAMp8Pn8CgGoxJK9rle2Op8pou5nK0EWr0ULtf0nAcbffN
 G1NhbSBFZGdlIDxzYW0uZWRnZUBnbXguY29tPsKPBBMWCAA3FiEEwl1LsIbGjzTcdvZZnnRS
 4+xX2j0FAmaWhQgFCRLMAwACGwMECwkIBwUVCAkKCwUWAgMBAAAKCRCedFLj7FfaPRkCAP0Q
 6qXDFe5tsJPlOVzcKzRoOCyHtTpJVEkLLuQICmxZVQD9G0dbldMjba5HliemDopHpPK/F7mm
 8xN6cIYZR0oeUgPOOARmloUIEgorBgEEAZdVAQUBAQdAy1HFAiQHCDQJBN96J2CrNx4zT5fA
 eTMTg4wFkouDpEUDAQgHwn4EGBYIACYWIQTCXUuwhsaPNNx29lmedFLj7FfaPQUCZpaFCAUJ
 EswDAAIbDAAKCRCedFLj7FfaPawOAQDY7WEocDlwOUPT73PJ/mXLVe1HFmvz2mjCGjJBsW/2
 JwD+N2IAC6iiJXaOcFieYStHqY+TlBqT4iy1A++FvOLpbwU=
In-Reply-To: <50ef4d1a-fab5-4711-b17a-5d26e74c4881@SystematicSW.ab.ca>
UI-OutboundReport: notjunk:1;M01:P0:gr99R+Nur/Y=;1XPABVT1YlK/Zxo3IQYtcCjHlHk
 hNmkPYTpj/SKRMyCjzjQDotLPuKgQp8XfMIhauzgFgngYbdil/bbZc2lKM8VwP8oauXbG282X
 Va6Tu6AnPIsYDjIhAzlIJPwoPNVIGxB0Mcj/NxSvZB+BUfUILLjCv8VQTv5lLdnUIl2WfTJ79
 ZucyrePpSBZY8fAwYQ31wwo7uainDOI9iBdeajB9ZfRVXxCvKCqmespTsV5zvce7VponjKKN3
 bfCSx4K9tTkuq2sAiMdAkXB4lyWc7riF1IjBT+DquzQC5BExC1eGkQ3KaYVZ7QtDmwpMrRHFO
 F9FvNnILomI31Kr3yWAFHFVfBqXJLw452iNoegVOXdMyDW6VCaOAE6YHdP3/azJZz1SLgy3h9
 q0LU/xyg6n4StqCrlXWr3/rqyL0N1iqTjkz46DBjhpsiJqWZUirbH+0ZBV8koPi66JeiaF7iw
 DirHhj9ixtoG4HQNVZc7QOTohMSv2++JmNI48HQUSwBXfSP32T4eNiP0hlWdLc9F67mQChLao
 /bHcv/foZPBhEaY6VOpNwh2aZ3Bfs+vMMr9iJmZuGjVliQrz7kzU97ztRY0LJs44g3dXlBR1Q
 x10OgBH04VBXYz1OaB+u42MBFD+l5wMvhpw4V86eVy6XF7RMaywT+HW9d+BUyJDRgZeSsYEaK
 ocOwPWFGuAsFOhzP0l6kqVUZNTAZ5KnS7aA9lja3/Mlelpz6pG1wThybq4DRWLDrymGGqk++7
 r0AcZ6OFh22Yo2816BpLejO6EMXOVSZplIDXkIkDgv4crGRqAAAMv6Gdmf2VOLrV0RnjECnXX
 eq0XZblQNuS/g/E9+1Fxb67QZALggipBoXhDPlFXaaHfjBiCL8MmqJfezEyOapXS9TpE5EKrX
 ytX0Ypu2ZVlamwbUJZwIzlrmw0XWTHxibAcMSqkbAzNLKqyfMhydvHqzBJkikzBWhF4iIKn/l
 yIlAHEh4AnNaYIzJHQl9zRHCdx5gw8UWVNQcfn/iPTfYr9ckl1MreFsCiQ2yAu9F/C+NQBPQS
 XgE2huYfu41Z+xCUe8fFjSMb/Z1xNilVZfhlAFsmOokU7Hrl51n0HVvST2BuMfCXrgs2tzii4
 yRaHgbrzusEm7A/t91Z+jY3nKejs/PeQgHszD1zCxkeyi7FSTe2P2eryvtsFEDuj1NslGyKfV
 dQD9WQW3wvSJvfRPo/4jwA4T/aAyGCkCMWo2hmxez7nArxPTLN22iYlclODXxY2i6ucE+hl34
 rJryT+teivfG1g7TM3sQyA5kzC6/CUG7XvWq236xUV2BQc+mIgM3UDK7WBT7t29mO/OgbC3Ka
 Lmw65RBkss9Z0aOgXSsxNs4ZVckSEvQMKsxZLeeDYynwYOC05xr8aKy05vVFUMFwYgrnEBrW+
 eBbpoPVdgUY8hwnOFiNWkUbmH7SJHml0kDWEPW/HlYHYtQVln1OvMjN8/GMA3tyZXqo6qxAgF
 gitL/9UeJgyfJn9QA46e5yjU3L/zq6sIXzaFwYsY9i3wA2f2t/Hxn/yWyMKmLUvV2XPTbDGoy
 tK0fw4vESbyupxm3ock+36HWj97PvxVgd/8c9AHB6AhgY2V9xYuBW7R6sK3ahPOQnS8PvDg3X
 kXAPV+EUhMUzAvi1YxYzjR8toFV81EQrMo2nrM0oSbzq7l1rZrNo6uPKA1MNG9/4JatZ3cXJO
 c3PAd9UFORf9lxuR8ocFm0KdHDs8JWlYLK+mR1AbkSuPUbV6+CRWGM0ePMbLi20SAz64ih3cb
 3GPubEA0XyRSa5MmRwiDsMaOALLK6JQ2rEQQDdnt6JvJGVSV0ZE6UPXOx5KoLQT583GqDiS9P
 s6uAXQhA7JGr1Wbjqfpe2Fwmq5ihhJa0Y18Ak1yseqk5nO4CpxLhl0TYFKhcTsNYh3UBJSBRA
 PV6LPKNpGzl6gmkkegrGoHoutO88VvTYFrQvxCc1JUai6bL3YWPn22xO6zq6L+CUcAcbW+H4z
 UV5gSdRCbEjmIDBnpTVDV1Df9m3cXc997d7VWxMq5aQCSEXYpTBJep2eK6YqofbjngBX6BJnN
 EcyFgAMZ/iui9zKw++9RroymE0j7YPX6QlVrvpu1KFzocIin+O+/7T6Te2AIPWJm9g9uCPj/c
 0RWthXQuPx5iNzvEqpF0j3aiFQf+pGTyu2zfR44jsQYwLHFWrsO3ZJVvHdXmx/3jxxk6hfTS1
 0JUoloQ6QpeaAqnUBHCf8R4+ymYy8dN0nipKGH2Nx/O1YWZ2sXpH62GtgV8yADOqBszuF6xsn
 LFILdrB2eXMYJXFEnbt8zDMldUpLiPT92wWreuFSghcmNtZ8uDB11UZdRathwZmnx0uIwywD8
 CCuqD/v3Zup907PnVG/7rk1IO596LgBORYp3lLTFeePL0sodDNEXc1jxr8PzfaEOZsD0qpluG
 WFczh/loqJPQoZwhDyCL8JWIfuNEC53DMtOj219IdW0QbW2/cdaV3wlz4RO07Ucy4QdfucMCL
 gtR3c8TR+eschQLV+Flk9rMvUgFbdknJ0G+CvnOX2pcs3FwCIg1BuPsYF7BIk1GZUPYEWjtHF
 9ZD6MX2wSW8QUAfyUnz/8YuQeMD2ldrWVlHR7TiPrN5hjgRGZP9A0Czo2VvdpZL8kXIOCnD95
 9z00VCAAZgOzNAJnbHV6oyL7almm+HfahzZmikv4UzShMhKDMZBXg56e2AmOStiaKQB70fqBi
 ns104KRbZAFTF3LBhybtenDjugPxhyYsqO/7A0fsNluXKnFIJW/aoVsb62tyTC/JDcmVn5qqZ
 EofY8U77qMw5Zvk7GLDDcPftX9NI79jbQiV3R/zEfsCtIzLlNUt67Evkt/Jyn3MBTjIBFi1D0
 E+M4abvmG7FNzJtxG0VlhlvtMD1gGEsA6fBw22t9w50BXqRoMaWdaqv5uMbZ//OG2DfjGcCxj
 vWco+9iWp0jGHPJ1KdzORJkbT8va17CKsEAzQ9Er+8Ji7gH7Xr/mOn78WUeSCpV6T+U8WBo3P
 bWocARxASRRSotn00xvUSRmq4/FxYE8kC+kmLxQFNObrCGUCkiyID40lM4s4zGvWERMy6F+4S
 lgZqYIaXn4C+Ouq0p0Zq95aS9wghvVGP6i+xAtKSz633GUQ/omqS+xlRtgD28wZnT2u1QlCrt
 DwHv3ljX3YMfTEsO4NvLJETNlUVIF0wLOiBRO5hyxYFV9RWGwtRBPNmbV8BZUH1smwaPszj+U
 ht27BOYDva/xeQyuCwg9H389Nhz/k6SLI8lKe5L6rJ8Oj2+BQh/cU6oMW2NNFznAAjBGEZfFH
 6NBNM+T2sDHkLyO9kIeyxt7w5uWIXM/lwax4rcLwLj7o6eQ7DOHkH4oFsfgoNIKQx44Z8TCeK
 t08BS7EzHOkxFqrmRudJduYXvwRyag8A9Cd8gFO6Eq08tzfoCsA0DpS+lTK8dquXqb7ceIGEv
 NrfD3t2YjjOFx1ZI+ocL/m42AKBjq4xOJdCsMy2ZLV+TgLvNcF8xAko7/VG6DI0dU7YzyO7qO
 kd4mHUMbcsWhS5nmmBV4VtnM2vxXzRm5r/nOY6Zrn2LsGWR094WjrVRyBvYKHXVdmKg/dPmYZ
 armYJOTaeQgxx++PS+IPl1kZLtayrRmwWaBUWATKLCX1GOJ5nDlpIE8XlpCq3/A1sq+lzaFfH
 UswCPv3vwC1Is6k/2tL4u0wU0sFAcdGuardqpvFopJPXi0Q25r1C4o2MO9vrsVW7mpKRDgGZe
 b4J3zY26Q/iWn+Bh5hqaaUi7VDenvRjpS88U2mdLu+XZH5KYS1Oi++COrinVx6ifp3eoH5I2f
 a35545XzoFC3jBSxK72F8bcoFo5F23ijWJRzWBDZAPBnCzkeypm42kZM0vze+3DvkhxPg5+D+
 rPpeSJBIUQJaMeNL4GjB75V3XK6K4fw+T+Si21iaWDZp+ZzEEZZy1CaODXXhyu7nxVNeBG2pi
 FamEae2/qsg6xmeMMnSXmSmBTs+f2EfKcyQtNBC814092otygQPx9Oj3LuLeuU1o4ubMo7MAl
 7VKYHkbNZC70jq8fk9Kr8xo/OD2XjGgmIc8IYQmjABu5PBsqIQQNKS6r4dgVelSiz0deF4rFi
 B1OazfTJ6qCUuGwmhStK26CXr7VRTc3ipTqNN4SP+mB9sltEY2iV0TSKPyza3JtPMASbxx+Fz
 L3oUDD3ySuTbmB+sdkBhVvU17ynXjXQVjcah3lEQD8q0r9y/6nyVktnJSVtk1BqaTuQXOph6t
 AbfN7gI0Ch82EqAqANPmdluC2gt6kJb0EnvBtaIPRhIRYf0kTD5+My+drbTttkf7a+mWMdqbw
 CXO6p2IVm3P1SptR9ZunQPoB26Z4l/dVEgPPetZXjAC7AtOf7Oq5KaqsTAgV5M77ZQj0NsVhz
 wXryCW0BtB7lPY/aPmYJYv9PWBQ+tABbSZR7LWogZ01VCTwuW7UzqqU3TWHG26qtSMM2X0w3I
 65Emi0KruQMqNlLHvFLOuKXbpa4Iu2fW0niQrZ8aR8nWmd0NvAc6r1JZF+bC72UjiRHdJJEPg
 jVE+IR+2Rrxf857NEapClI3XeYPw67kk9+Hy1Sro7zhYp7NriXosUOKUBxT6/VZeyUYreADU3
 Zu361IvW4UFFK6bE8pzJaUEw8mppLjQJcS2raxW1U3s4mSnqXSpaqQ5bEIizLgYBnfbdD8/Sj
 IfvAWoP6LHhPqkj2/bz7DAIay+qn0Ta8OeotIeWCDCu+/fOicDgNfrN37GY/XFZM/C52OrCMG
 X0Qr2dc=
Precedence: list
From: Sam Edge via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Sam Edge <sam DOT edge DOT cygwin AT gmx DOT com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>
Content-Transfer-Encoding: 8bit

On 01/09/2025 18:19, Brian Inglis via Cygwin wrote:
 > On 2025-08-31 13:06, Mariusz Wodzicki via Cygwin wrote:
 >> Description of the problem.
 >> [0-9]  picks also certain Unicode superscript characters ( namely, ⁰ 
⁴ ⁵ ⁶
 >> ⁷ ⁸ ⁹ ), and every Unicode subscript character.
 >>
 >> Example: the directory has the following files:
 >> $ /bin/ls
 >> ₀.txt  ₁.txt  ₂.txt  ₃.txt  ₄.txt  ₅.txt  ₆.txt  ₇.txt ₈.txt  ₉.txt
 >> ⁰.txt  ¹.txt  ².txt  ³.txt  ⁴.txt  ⁵.txt  ⁶.txt  ⁷.txt ⁸.txt  ⁹.txt
 >>
 >> $ /bin/ls [0-9].txt
 >> ₀.txt  ₁.txt  ₃.txt  ⁴.txt  ⁵.txt  ⁶.txt  ⁷.txt  ⁸.txt
 >> ⁰.txt  ₂.txt  ₄.txt  ₅.txt  ₆.txt  ₇.txt  ₈.txt
 >>
 >> $ locale
 >> LANG=en_US.UTF-8
 >> LC_CTYPE="en_US.UTF-8"
 >> LC_NUMERIC="en_US.UTF-8"
 >> LC_TIME="en_US.UTF-8"
 >> LC_COLLATE="en_US.UTF-8"
 >> LC_MONETARY="en_US.UTF-8"
 >> LC_MESSAGES="en_US.UTF-8"
 >> LC_ALL=
 >>
 >> System.
 >> Fully up to date Windows 11
 >> cygwin 3.6.4-1
 >> bash    5.2.21-1
 >
 > For reproducible results prefix commands with LC_ALL=C … or possibly 
just LC_COLLATE=C or LC_CTYPE=C or =POSIX to standardize the locale, 
otherwise many commands will respect the current locale, and some 
respect Unicode regardless of locale e.g. `info wc`:
 >
 > "Unless the environment variable ‘POSIXLY_CORRECT’ is set, GNU ‘wc’ 
treats the following Unicode characters as white space even if the 
current locale does not: U+00A0 NO-BREAK SPACE, U+2007 FIGURE SPACE, 
U+202F NARROW NO-BREAK SPACE, and U+2060 WORD JOINER."
 >
 > For GNU utilities, where info pages are preferred, such as 
coreutils*, compiler and language processors, and tools packages, many 
details do not appear in the man pages, for example:
 >
 > "Full documentation <https://www.gnu.org/software/coreutils/wc> or 
available locally via: info '(coreutils) wc invocation'"
 >
 > although `info wc` shows the same page.
 >
 > —————
 > * [ arch b2sum base32 base64 basename cat chcon chgrp chmod chown 
chroot cksum comm cp csplit cut date dd df dir dircolors dirname du echo 
env expand expr factor false fmt fold gkill groups head hostid id 
install join link ln logname ls md5sum mkdir mkfifo mknod mktemp mv nice 
nl nohup nproc numfmt od paste pathchk pinky pr printenv printf ptx pwd 
readlink realpath rm rmdir runcon seq sha1sum sha224sum sha256sum 
sha384sum sha512sum shred shuf sleep sort split stat stdbuf stty sum 
sync tac tail tee test timeout touch tr true truncate tsort tty uname 
unexpand uniq unlink users vdir wc who whoami yes
 >

Bash is GNU but isn't part of coreutils as far as I know. Type 'man 
bash' and then read the 'Pattern Matching' section for its globbing 
behaviour.

TL;DR For bash 5.2, using 'export LC_ALL=C.UTF-8' as Brian suggests or 
'export LC_COLLATE=C.UTF-8' or 'shopt -s globasciiranges' should revert 
to simple ASCII ranges for '[0-9]', '[a-z]' etc.

I'm seeing the correct behaviour with up-to-date Cygwin bash/coreutils 
etc. by the way. 'echo [0-9]*' only expands out sub/super-digits if I 
use 'LC_COLLATE=en_GB.UTF-8' or similar with 'shopt -u globasciiranges'.


-- 
Sam Edge


-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple