feat(multi-selection): add support for multi-lines shifting

[edouard-lopez]

Since the addition of Multiple Selections in PyCharm it wourd be nice to be able to select several occurences and increment them in a batch. Some behaviors must be discussed:

• should we reset the sequence starting at 0, 1 or at the first item value (e.g. 4) ;
• do we respect the list values and in/decrement them (e.g. 1, 4, 5, 6 → 2, 5, 6, 7) or build a new sequence (e.g. 1, 4, 5, 6 → 1, 2, 3, 4) ?
• etc.

[kstenschke]

Hi Eduard, thanks for opening this discussion with an interesting idea!

The suggested first strategy of in/decrementation (1, 4, 5, 6 → 2, 5, 6, 7) seems the most obvious approach to me, matching the current implementation of shifter.

Can you describe a recurring scenario when the second strategy is helpful? What other strategies can you think of?

[iby]

:+1: Yes, please!!!

[krasa]

Another case:

Comment a1 = new Comment(1,null);
Comment a1 = new Comment(1,null);
Comment a1 = new Comment(1,null);

into:

Comment a1 = new Comment(1,null);
Comment a2 = new Comment(1,null);
Comment a3 = new Comment(1,null);

http://stackoverflow.com/q/30156282/685796

[kstenschke]

Thank you Vojtêch for the suggestion and link to stackoverflow. :+1: Currently shifter sorts multi-line selections alphabetically when shifting them, i think having it detect and enumerate a multi-line selection of identical lines into a sequence might be a cool additional feature.

[AbcAeffchen]

:+1: I would love to see the feature suggested by Vojtěch.

[krasa]

I needed bunch of unique variable names the other day, and it pissed me off doing it one by one, so I implemented it :)

[kstenschke]

wow, sounds cool. looking forward to your pull request :)

[krasa]

There won't be any :-) But feel free to copy paste it from my plugin.