Re: Dynamic assignment of list name in iterator statement?

Søren  ,
May I ask you a follow up? I am trying what I thought I read in your reply
(thank you for that, by the way). But I continue to get this error:
"The LHS of an assignment should be a variable or a field accessing
expression @ ...."

This is what I currently have, attempting to set my variable name to
include the key drawn from my Groovy map. How must I change this to get it
to work?

     mapLanguages.each { k, x ->
          log.warn('mapLanguages entry is this: {} {}', ["$k", "$x"] as
Object[])
          x.each {
               languageChar -> log.warn('language char in {} is this: {}',
["$k", "$languageChar"] as Object[])
          }
          "contains${k}" = true
     }

Many thanks again,
Jim

On Thu, Feb 23, 2023 at 3:01 AM Søren Berg Glasius <[email protected]>
wrote:

> Hi Jim,
>
> It is possible:
>
> languages = ['english', 'french', 'spanish']
> englishCharsList = ['a','b']
> frenchCharsList = ['c','d']
> spanishCharsList = ['e','f']
>
> languages.each { lang ->
>     this."${lang}CharsList".each { ch ->
>         println "$lang -> $ch"
>     }
> }
>
> Check it out here:
> https://gwc-experiment.appspot.com/?g=groovy_3_0&codez=eJxVjkEKwyAQRfeeYhDBTZobtJtue4PShbVGBRmCY1fBu2e0ppBZDMN__38mGfRf4x3BFZ7aoU-Rgp5AL9mh7RetBpv4EgPfg8n0iFR6xuhJvxn-AmdmmX2YjYozdAwXhiIdP8zO2AAbNAEuNwE8JUSapdqaVv8F8rDyGsY2a45YEoJUowKUDbLjKqrYAZXRSNo
>
>
> Best regards,
> Søren Berg Glasius
>
> Hedevej 1, Gl. Rye, 8680 Ry
> Mobile: +45 40 44 91 88
> --- Press ESC once to quit - twice to save the changes.
>
>
> Den tor. 23. feb. 2023 kl. 01.52 skrev James McMahon <[email protected]
> >:
>
>> Good evening. I have a list named languageCharactersList. I begin my
>> iteration through elements in that list with this:
>>
>> languageCharactersList.eachWithIndex( it, i ->
>>
>> I hope to make this more generic, so that I can build a variable name
>> that points to the appropriate list, which then allows me to keep my
>> iteration loop generic.
>>
>> I'd like to do this:
>> def languages = ['english', 'french', 'spanish']
>> def englishCharsList = [....]
>> def frenchCharsList = [.....]
>> def spanishCharsList = [....]
>>
>> I'll set up an iterator to grab each of the languages. Within that
>> iterative loop I will set a general variable like so:
>> def CharsList = "english"+"CharsList" (then "french", then
>> "spanish",.....)
>>
>> I was hoping I could then set up the generic iterator like so:
>> *"$CharsList"*.eachWithIndex{ it, i ->
>> or like so
>> *$CharsList*.eachWithIndex{ it, i ->
>>
>> But Groovy doesn't allow this approach, and throws a stack trace.
>>
>> How can we employ a variable assignment in that list iterator statement
>> so it can be generalized?
>>
>> Thanks in advance.
>> Jim
>>
>>