Geoff Clare <g...@opengroup.org> wrote:
> Robert Elz <k...@munnari.oz.au> wrote, on 11 Apr 2018:
> >
> > Lower down, it says ...
> >
> > In order from the beginning to the end of the case statement, each
> > pattern
> > that labels a compound-list shall be subjected to tilde expansion,
> > parameter
> > expansion, command substitution, and arithmetic expansion, and the
> > result
> > [note: no quote removal]
> > of these expansions shall be compared against the expansion of word,
>
> The missing quote removal here is a known defect in the standard.
> See http://austingroupbugs.net/view.php?id=985
>
> > Not doing quote removal on patterns is correct.
>
> No it isn't. As bug 985 notes:
>
> $ case 'foo bar' in "foo bar") echo "quotes removed";; esac
> quotes removed
In the Bourne Shell, this matches the C-string
"foo bar"
against the pattern
\f\o\o\ \ \b\a\r
since the "case pattern" is subject of macro expansion that expands '"' quoted
strings to strings with quoted characters.
Jörg
--
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