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Subject:	bash: '\n' after command substitution in $PS1 causes errors when
	igncr is set
To:	cygwin AT cygwin DOT com
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From:	Ken Takata via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Ken Takata <ktakata65536 AT gmail DOT com>
Sender:	"Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>

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Hello all,

I originally reported this issue to the msys2 team:
https://github.com/msys2/MSYS2-packages/issues/1839
https://github.com/msys2/MSYS2-packages/pull/4477
But I find that this issue is coming from Cygwin Bash, so I'm reporting
here.

When I use \n after command substitution in $PS1, it causes syntax errors
when the igncr option is set:
```
$ set -o igncr
$ PS1='$(date)\n\$ '
-bash: command substitution: line 1: syntax error near unexpected token `)'
-bash: command substitution: line 1: `date)'
```
(Confirmed with bash-5.2.21-1)

I found an issue in rewind_input_string() in parse.y. It didn't take care
of '\r'.
Please find the attached patch to fix it.
Could you consider merging this into bash-5.2-cygwin.patch?

Regards,
Ken Takata

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