From: "Vladimir N. Oleynik" <dzo@simtreas.ru>
To: dash@vger.kernel.org
Subject: single_quote patch
Date: Fri, 29 Jan 2021 22:56:37 +0400 [thread overview]
Message-ID: <695d664f-98dc-17be-9bec-55250391e296@simtreas.ru> (raw)
Hello.
I rewrote (next version vs send to Herbert) single_quote()
for do not confusing in debug mode, more funny
showvars and showalias and allow the printf "%q" directive.
Before patch
$ ./dash-0.5.11.3 -x
$ foo () { local a=" b"; ls "$1"; [ -z "$1" ]; }
$ c=" x" foo
+ c= x foo
+ local a= b
+ ls
ls: cannot access '': No such file or directory
+ [ -z ]
After patch
$ ./dash-0.5.11.3.my -x
$ foo () { local a=" b"; ls "$1"; [ -z "$1" ]; }
$ c=" x" foo
+ c=' x' foo
+ local a=' b'
+ ls ''
ls: cannot access '': No such file or directory
+ '[' -z '' ']'
Before patch
:
$ a= b="a'b" c=a/b
+ a= b=a'b c=a/b
$ set +x; set | grep '^[abc]='
a=''
b='a'"'"'b'
c='a/b'
$ printf "%q\n" "a'b"
dash: 32: printf: %q: invalid directive
After patch
$ a= b="a'b" c=a/b
+ a= b="a'b" c=a/b
$ set +x; set | grep '^[abc]='
a=
b="a'b"
c=a/b
$ printf "%q\n" "a.b" "a'b"
a.b
"a'b"
The patch placed: ftp://simtreas.ru/pub/my/dash/single_quote_diff.txt.gz
(I can not send this patch to maillist - message dropped)
--w
vodz
reply other threads:[~2021-01-29 18:57 UTC|newest]
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