Hi!
----
It seems the [[ -v varname ]] operator is (again) broken for .sh.match
in ast-ksh.2012-07-27:
Example:
-- snip --
$ ksh -c 's="aaa bbb 333 ccc 555" ;
s="${s//~(E)([[:alpha:]]+)|([[:digit:]]+)/NOP}" ; integer i=2 j=3 ; [[
-v .sh.match[i][j] ]] && print fail'
fail
-- snip --
The .sh.match array contains...
-- snip --
(
(
[0]=aaa
[1]=bbb
[2]=333
[3]=ccc
[4]=555
)
(
[0]=aaa
[1]=bbb
[3]=ccc
)
(
[2]=333
[4]=555
)
)
-- snip --
... which means .sh.match[2][3] is definately not set... but [[ -v
.sh.match[2][3] ]] returns 'true'.
<frustration>
This is much fun since I tried to write the (or better: a ksh93
version) DocBook2astgetopts parser tonight... but it turns out without
being able to use .sh.match properly and check for "no match" with [[
-v .sh.match[x][y] ]] there is no way to do it... ;-(
</frustration>
BTW: This must work, too (without producing differences in "diff"):
-- snip --
# copy .sh.match to ar
integer i j
for (( i=0 ; i <= ${#.sh.match[@]} ; i++ )) ; do
for (( j=0 ; j < ${#.sh.match[i][@]} ; j++ )) ; do
[[ -v .sh.match[i][j] ]] &&
ar[i][j]="${.sh.match[i][j]}"
done
done
diff -u <(print -v ar) <(print -v .sh.match)
-- snip --
----
Bye,
Roland
--
__ . . __
(o.\ \/ /.o) roland.ma...@nrubsig.org
\__\/\/__/ MPEG specialist, C&&JAVA&&Sun&&Unix programmer
/O /==\ O\ TEL +49 641 3992797
(;O/ \/ \O;)
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