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Re: Conditional actions according to user input


From: alex xmb ratchev
Subject: Re: Conditional actions according to user input
Date: Sun, 23 Apr 2023 11:19:22 +0200

On Sun, 23 Apr 2023, 11:02 am alex xmb ratchev, <fxmbsw7@gmail.com> wrote:

>
>
> On Sun, 23 Apr 2023, 6:28 am uzibalqa, <uzibalqa@proton.me> wrote:
>
>> I have a set of possible user input formats stared in an array
>>
>> For instance
>>
>> pary=( "-p+([[:digit:]])"  "-g+([[:digit:]])"  "-q" )
>>
>> I then want to match these with the actual user inputs
>>
>>   for gpn in "${pary[@]}"
>>   do
>>     if [[ "$arg" == $gpn ]]; then
>>
>>
>> What I do after is dependent on whether the user used the digit form (e.g
>> "-p+([[:digit:]])")
>> or the isolated predicate form (e.g. "-q").
>>
>
> another try
>
> set -- -q -q200 -v -v400
>
>   for arg ; do
>  [[ $arg != -* ]] &&
> continue # no arg
> pre=${arg%%[0-9]}
>  if [[ $arg == *[0-9] ]] ; then
> num=${arg##[!0-9]?}
> printf 'arg %s num %s\n' "$pre" "$num"
>  else
> printf 'arg %s nonum\n' "$pre"
>  fi
>   done
>
> ~ $ bash c.2
> arg -q nonum
> arg -q20 num 200
> arg -v nonum
> arg -v40 num 400
>

fixed shopt version
the nonshopt seems me unlogically bugged

~ $ bash c.2
arg -q nonum
arg -q num 200
arg -v nonum
arg -v num 400
~ $ cat c.2
shopt -s extglob

set -- -q -q200 -v -v400

  for arg ; do
 [[ $arg != -* ]] &&
continue # no arg
pre=${arg%%+([0-9])}
 if [[ $arg == *[0-9] ]] ; then
num=${arg##+([!0-9])}
printf 'arg %s num %s\n' "$pre" "$num"
 else
printf 'arg %s nonum\n' "$pre"
 fi
  done

greets


How can I handle the aforementioned functionality in a clear and compact
>> way?
>>
>>
>>
>>
>>
>>


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