[BUG core?] Regression with parsing Windows’ command-line

[Ilya Zakharevich]

On Wed, Nov 16, 2022 at 04:48:25AM -0800, I wrote:
> De-quoting (converting the Windows’ command-line into argc/argv) does
> not remove double quotes if characters not fit for 8-bit (?) are present.
> 
> 	Broken in: CYGWIN_NT-6.1     Bu 3.3.4(0.341/5/3) 2022-01-31 19:35 x86_64 Cygwin
> 	Works  in: CYGWIN_NT-6.1-WOW Bu 2.2.1(0.289/5/3) 2015-08-20 11:40 i686   Cygwin
> 
> To reproduce, do in CMD’s command line:
> 
>   D:\> D:\Programs\cygwin2022\bin\perl -wle "print for @ARGV" . "/i/" "/и/" .
>   .
>   /i/
>   "/и/"
>   .

I triple-checked
  • with a Win10 machine (and a version of cygwin given above),
  • with a fresh latest(=test)-cygwin-dll installation on a Win7 (as above) machine. 

Same bug everywhere.

> Likewise for other characters which do not fit into 8-bits.  (I have a
> TrueType font enabled in a console.)
> 
>   (If you do not know how to type this, just copy-and paste it into a
>    console with CMD.)

Ilya