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From: dana <dana@dana.is>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: [PATCH] Document imperfections in POSIX/sh compatibility
Date: Sat, 10 Apr 2021 18:31:31 -0500
Message-ID: <7FD930F4-37CD-402B-9A06-893818856199@dana.is> (raw)

Lawrence bumping 47794 reminded me of this. Someone on IRC was trying to use
zsh as sh and they were very annoyed to learn that the sh emulation has
imperfections that aren't really documented anywhere. I said i would add a
mention. Let me know if this is editorialising it too much

dana


diff --git a/Doc/Zsh/compat.yo b/Doc/Zsh/compat.yo
index f1be15fee..a09187918 100644
--- a/Doc/Zsh/compat.yo
+++ b/Doc/Zsh/compat.yo
@@ -74,3 +74,8 @@ tt(PROMPT_SUBST)
 and
 tt(SINGLE_LINE_ZLE)
 options are set if zsh is invoked as tt(ksh).
+
+Please note that zsh's emulation of other shells, as well as the degree
+of its POSIX compliance, is provided on a `best effort' basis.  Full
+compatibility is not guaranteed, and is not necessarily a goal of the
+project.



             reply	other threads:[~2021-04-10 23:31 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-10 23:31 dana [this message]
2021-04-10 23:50 ` Bart Schaefer
2021-04-11  0:19   ` dana
2021-04-11 16:54     ` Bart Schaefer
2021-04-11 17:57       ` sh emulation POSIX non-conformances (Was: [PATCH] Document imperfections in POSIX/sh compatibility) Stephane Chazelas
2021-04-11 18:13         ` Bart Schaefer
2021-04-11 19:18         ` sh emulation POSIX non-conformances (no word splitting upon arithmetic expansion) Stephane Chazelas
2021-04-22 15:03           ` Vincent Lefevre
2021-04-22 18:27             ` Bart Schaefer
2021-04-11 19:31         ` sh emulation POSIX non-conformances ("inf"/"Inf" in arithmetic expressions) Stephane Chazelas
2021-04-12 20:41           ` Bart Schaefer
2021-04-13  7:17             ` Stephane Chazelas
2021-04-22 15:31               ` Vincent Lefevre
2021-04-22 18:55                 ` Bart Schaefer
2021-04-22 20:45                   ` Daniel Shahaf
2021-04-22 21:25                     ` Bart Schaefer
2021-04-23 16:45                   ` Vincent Lefevre
2021-04-23 20:31                     ` Bart Schaefer
2021-04-23 22:46                       ` Oliver Kiddle
2021-04-23 23:34                         ` Bart Schaefer
2021-04-24  2:10                           ` Daniel Shahaf
2021-04-24  3:42                             ` Bart Schaefer
2021-04-24  7:33                               ` Stephane Chazelas
2021-04-24 16:04                                 ` Bart Schaefer
2021-04-24 23:02                         ` Vincent Lefevre
2021-04-25  2:18                           ` Bart Schaefer
2021-04-25 20:17                             ` Vincent Lefevre
2021-04-25 21:58                               ` Bart Schaefer
2021-04-26 10:28                                 ` Vincent Lefevre
2021-04-25 22:00                               ` Bart Schaefer
2021-04-26 10:34                                 ` Vincent Lefevre
2021-04-26 23:25                                   ` Vincent Lefevre
2021-04-11 19:33         ` sh emulation POSIX non-conformances (some of zsh's special variables) Stephane Chazelas
2021-04-11 19:42         ` sh emulation POSIX non-conformances (printf %10s and bytes vs character) Stephane Chazelas
2021-04-13 15:57           ` Daniel Shahaf
2021-04-13 18:03             ` Stephane Chazelas
2021-04-13 21:09               ` Bart Schaefer
2021-04-22 13:59           ` Vincent Lefevre
2021-04-22 14:28             ` Vincent Lefevre
2021-04-22 19:22             ` Bart Schaefer
2021-04-23 16:53               ` Vincent Lefevre
2021-04-23 23:01                 ` Oliver Kiddle
2021-04-24 21:41                   ` Vincent Lefevre
2021-04-24 21:46                   ` Vincent Lefevre
2021-04-24  7:09                 ` Stephane Chazelas
2021-04-24 21:52                   ` Vincent Lefevre
2021-04-24 22:28                     ` Bart Schaefer
2021-04-24 23:18                       ` Vincent Lefevre
2021-04-25  2:20                         ` Bart Schaefer
2021-04-25 11:07                           ` Vincent Lefevre
2021-04-11 23:04       ` [PATCH] Document imperfections in POSIX/sh compatibility dana
2021-04-13 16:01 ` Daniel Shahaf
2021-04-13 16:12   ` Peter Stephenson
2021-04-13 20:28   ` Oliver Kiddle
2021-04-13 21:40     ` dana
2021-04-13 22:02       ` Bart Schaefer
2021-04-14 12:38       ` Daniel Shahaf
2021-04-18  4:50         ` dana
2021-04-20 21:26           ` Daniel Shahaf
2021-05-03 23:42             ` dana

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