Re: Dynamic assignment of list name in iterator statement?

Yes indeed. A careless error one makes in the early hours of the morning.
Thank you very much  Søren.
I am also going to look into Locale as Rachel G. encouraged 😉. And Bob B.
has replied with a sample I want to explore too. Thank you Bob and thank
you Rachel.
Jim

On Sun, Mar 5, 2023 at 6:32 AM Søren Berg Glasius <[email protected]> wrote:

> Hi Jim,
>
> If your switch hits "English" it will also set the rest of the cases. You
> need a "break" after "containsEnglish = true" - just like in Java
>
>
> Med venlig hilsen,
> 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 søn. 5. mar. 2023 kl. 09.37 skrev James McMahon <[email protected]
> >:
>
>> Was trying to come up with a Groovy way to collapse a lengthy switch
>> statement to dynamically building the variable name. I've failed at that.
>> Instead, I've fallen back on this option:
>>
>>      switch("$k") {
>>                case "English":
>>                     containsEnglish = true
>>                case "Spanish":
>>                     containsSpanish = true
>>                case "French":
>>                     containsFrench = true
>>                case "Japanese":
>>                     containsJapanese = true
>>                case "German":
>>                     containsGerman = true
>>                .
>>                .
>>                .
>>                default:
>>                     break
>>           }
>>
>> I initialize each of my "containsXYZ" variables to false at the beginning
>> of my Groovy script. It works well, though it seems to lack elegance and
>> brevity to me.
>>
>> Thanks again.
>> Jim
>>
>> On Sat, Mar 4, 2023 at 5:10 PM James McMahon <[email protected]>
>> wrote:
>>
>>> Søren  ,
>>> May I ask you a follow up? I am trying what I thought I read in your
>>> reply (thank you for that, by the way). But I continue to get this error:
>>> "The LHS of an assignment should be a variable or a field accessing
>>> expression @ ...."
>>>
>>> This is what I currently have, attempting to set my variable name to
>>> include the key drawn from my Groovy map. How must I change this to get it
>>> to work?
>>>
>>>      mapLanguages.each { k, x ->
>>>           log.warn('mapLanguages entry is this: {} {}', ["$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
>>>>>
>>>>>