[PATCH 0 of 1] ui: add function 'promptselection'

[timeless]

Your proposal is likely to break horribly in most localizations.

In order to use it, I'd have to do:
  yes = _('Yes')
  no = _('No')
  maybe = _('Maybe')
  response = ui.promptselection(_('should this be done?'), (yes, no, maybe), no)

  if response is yes:
   ...

Any other construct is l10n fragile - localizers can easily not
recognize that two strings must be identical.

-1.

On 8/4/11, Ingo Proetel <proetel at aicas.de> wrote:
> Hello,
>
> I have a patch proposal for a new function to replace 'promptchoice'.
>
> The function 'promptselection' provides more automatic support for user
> selections:
> - always provide a help
> - uniform representation of possible choices
> - return command strings instead of indexes
>
> Its use is similar to 'promptchoice':
>   choices = (_('&Abort command'),
>              _('Create &new request'),
>              _('&Reopen request') )
>   request = ui.promptselection('now what?', choices,'new')
>   if    request == 'abort':
>     util.Abort('User aborted')
>   elif  request == 'new':
>     ui.status('creating new')
>   else:#request == 'reopen'
>     ui.status('reopen existing')
>
> The output will look like this:
>   $>now what? [aNr?] ?
>   a Abort command
>   n Create new request
>   r Reopen request
>   $>now what? [aNr?] n
>   creating new
>
> If this function was accepted I would go through all uses of 'promptchoice'
> and replace them.
>
> Best Regards,
> Ingo
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