Found to be not a bug:
$ i=42; : ${var#${q[i=777]}}; echo $i; var=meow; : ${var#${q[i=777]}};
echo $i
must return 777 twice, because the pattern must always be expanded
before looking at $var.
$ i=42; : ${var+${q[i=777]}}; echo $i; var=meow; : ${var+${q[i=777]}};
echo $i
already behaves correctly (42 then 777).
** Changed in: mksh
Status: Triaged => Invalid
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https://bugs.launchpad.net/bugs/1798397
Title:
too eager expansion in substitution
Status in mksh:
Invalid
Bug description:
“If word is not needed, it shall not be expanded.” (POSIX)
00:52 < izabera> i=42; : ${var#${q[i=777]}}; echo $i; var=meow; :
${var#${q[i=777]}}; echo $i
00:52 < izabera> prints 42 777 in bash and ksh93
00:52 < izabera> and 777 777 in mkmsh
The #/##/%/%% of course need to expand word first.
Thanks to jilles for the heads-up.
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