On Thu, Oct 22, 2015 at 03:01:06AM -0700, Linda Walsh wrote:
> [cut]
> I.e. test output was:
> Case 2 got/Expected:
> "222"
> "1\ 222\ .3\ .4"
> [cut]
You didn't initialize the array. By the time you do "parts[1]=222" it's
still empty. And in your previous message you tried to initialize it in
a subshell. Variables don't retain their values after returning from
subshells.
> [cut]
> test 3 --- was supposed to check the values
> of the hash field-by-field, but first I thought to check
> them when printed out in a specific order as 2 identical
> strings. The strings look identical, yet don't compare equal.
> so it seemed pointless to try to break down test 3's output
> into a field-by-field comparison when I couldn't even get
> the identical strings that contained the fields to compare.
> [cut]
> [cut]
> if [[ $out != $exp ]]; then
> [cut]
Bash uses unquoted characters on the right side of == and != as wildcard
patterns. For example, [ipaddr] in $exp means "any of i, p, a, d, r".
You should quote the right operand.
> #!/bin/bash
>
> shopt -s expand_aliases ; alias my=declare
> alias array='my -a' int='my -i'
>
> ip=10.20.30.40
> array parts=()
> array answers=( '10 20 30 40' '1 .2 .3 .4' '1 222 .3 .4'
> '192.168.0.1/24::{ [ipaddr]="192.168.0.1/24" [address]="192.168.0.1"
> [prefixlen]="24" ; }'
> )
>
>
> array addr_fields=(ipaddr address prefixlen)
>
> assignparts() { parts=( $ip ) ; }
>
> tst0 () { my IFS=. ; assignparts ; echo -E "${parts[@]}"; }
> tst1 () { my IFS=0 ; assignparts ; echo -E "${parts[@]}"; }
> tst2 () { parts[1]=222; echo -E "${parts[@]}" ; }
>
> tst3 () {
> my ipaddr="$1"; shift;
> int status=0
> my pat='^([^/]+)/([0-9]+)\s*$'
> my address prefixlen
> if [[ ! $ipaddr =~ $pat ]]; then
> echo >&2 "Error in ip/netsize format: \"$ipaddr\""
> status=1
> else
> address=${BASH_REMATCH[1]}
> prefixlen=${BASH_REMATCH[2]}
> my out=""
> for flds in "${addr_fields[@]}"; do
> out+="[$flds]=\"${!flds}\" "
> done
> printf "{ %s; }" "$out"
> fi
> return $status
> }
>
>
>
> int passno=0 tests=0
> my fmt="Case %d got/Expected:\n \"%q\"\n \"%q\"\n"
>
>
> testor () {
> int tstno
> my out=""
> for tstno in {0..3}; do
> tests+=1
> exp="${answers[tstno]}"
> if [[ $exp =~ :: ]]; then
> my args="${exp%::*}"
> exp="${exp#*::}"
> out="$(tst$tstno $args)"
> else
> out="$(tst$tstno)"
> fi
> if [[ $out != $exp ]]; then
> printf >&2 "$fmt" "$tstno" "$out" "$exp"
> continue
> fi
> passno+=1
> done
> }
>
> testor
> echo "Passed $passno/$tests tests."
> ----------------
>
> output:
> Case 2 got/Expected:
> "222"
> "1\ 222\ .3\ .4"
> Case 3 got/Expected:
> "\{\ \[ipaddr\]=\"192.168.0.1/24\"\ \[address\]=\"192.168.0.1\"\
> \[prefixlen\]=\"24\"\ \;\ \}"
> "\{\ \[ipaddr\]=\"192.168.0.1/24\"\ \[address\]=\"192.168.0.1\"\
> \[prefixlen\]=\"24\"\ \;\ \}"
> Passed 2/4 tests.
>
> The outputs for case 3 look identical -- I was using %s to print
> them out, but switched to "%q", to ensure no hidden chars...
>
> case 2 --
> ??? Why didn't it only change the 1 member?
>
>
>
>
>
>
>
