[Toybox] new test failure on android

[Rob Landley]

On 1/10/25 09:19, enh wrote:
> On Thu, Jan 9, 2025 at 5:41 PM Rob Landley <rob at landley.net> wrote:
>> $ ./test abc '=~' a.c
>> $ ./test abc =~ a.c
>>
>> Commit 2407a5f51b58 added support for "=~". Is your shell somehow
>> expanding ~ maybe? (I thought that only happened when it was the first
>> character of its word?)
> 
> interesting you should say that because...

Shenanigans in mksh was the main thing left to look at. And I went 
fairly thoroughly through this area implementing it myself.

   https://landley.net/notes-2020.html#02-01-2020

I don't remember if these are in sh.test or my sh-todo.txt but it's 
stuff I cared about getting right, none expand in bash:

   echo ""~
   echo ~"landley"
   echo ~landle\y

Aha! And I'm getting one wrong. Quote removal still needs to happen for 
~"landley" it just happens _after_ tilde expansion fails...

>>> 2|cheetah:/ # /system/bin/toybox test abc =~ a.c
>>> test: too many arguments
>>
>> Try "echo abc =~ a.c" maybe?
>>
>>> 2|cheetah:/ # test abc =~ a.c
>>> /system/bin/sh: test: =/: unexpected operator/operand
>>> 2|cheetah:/ #
>>
>> Ok, not using the shell builtin. Huh.
> 
> ...and look at the error: it says "test: =/: " implying that, yes, =~
> has been turned into =/ by mksh.

Commit c914983e3aee

Rob