Thanks for prompt response. But see my comments below.
Well, instead of the following line
RESULT=''
done
declare -p RESULT
without initialization, because otherwise I got the following error "-bash:
declare: RESULT=: not found".
And after deleting/commenting the following fragment in badrev
#if [ $i -ge $QSTRING ] ; then
#echo "XXX-break i=$i result=$RESULT size=${#RESULT}"
#break
#fi
and correcting end echo-line to
echo " result=${RESULT[0]} size=${#RESULT[0]}"
i can see strange output for badrev:
declare -a RESULT=([0]="987654321" [1]="B" [2]="1" [3]="2" [4]="3" [5]="\\"
[6]="-" [7]="4" [8]="5" [9]="6" [10]="7" [11]="\\" [12]="-" [13]="8")
result=9 size=1
Still incorrect output and size:( How to get correct output? ${RESULT[0]}
???
result=${RESULT[0]} size=${#RESULT[0]} ### does not work :(
BTW, in the presented link to the manual with *6.7 Arrays*
there is no explanation for *declare -p *:(
Still unclear output for badsed
BAD variants of sed
string=Bb12345678 QSTRING=10
declare -a RESULT=([0]="bB123\\-4567\\-8" [1]="8" [2]="7" [3]="6" [4]="5"
[5]="4" [6]="3" [7]="2" [8]="1" [9]="6" [10]="7" [11]="\\" [12]="-"
[13]="8")
DEBUG i-symbol=B
DEBUG i-symbol=b
DEBUG i-symbol=1
DEBUG i-symbol=2
DEBUG i-symbol=3
DEBUG i-symbol=4
DEBUG i-symbol=5
DEBUG i-symbol=6
DEBUG i-symbol=7
DEBUG i-symbol=8
result=B size=1
On Thu, Aug 31, 2023 at 4:49 AM Lawrence Velázquez <v...@larryv.me> wrote:
> On Wed, Aug 30, 2023, at 2:12 PM, Victor Pasko wrote:
> > Attached please find bug.bash to reproduce incorrect BASH behaviour for
> > BASH arrays
> > and look at ways to run it
>
> Your tests are flawed. The lines you use to inspect RESULT...
>
> > badsed() { # just array indexes are used for RESULT
> > ...
> > echo -n " result=$RESULT size=${#RESULT}"
> > echo " ${RESULT:0:$k}"
> > }
> >
> > ...
> >
> > badrev() {
> > ...
> > if [ $i -ge $QSTRING ] ; then
> > echo "XXX-break i=$i result=$RESULT size=${#RESULT}"
> > break # XXX
> > fi
> > done
> > echo " result=$RESULT size=${#RESULT}"
> > }
>
> ...are actually only inspecting element 0 of RESULT. As per the
> manual, "[r]eferencing an array variable without a subscript is
> equivalent to referencing with a subscript of 0" [*].
>
> Try using ''declare -p RESULT'' instead.
>
> [*] https://www.gnu.org/software/bash/manual/html_node/Arrays.html
>
> --
> vq
>
--
-- PSK
