#907 Empty regex capture group becomes "null" in replacement

[Damien Rembert]

The addition of Regular Expressions capture in 4.1.4 is a big help but there seems to be a little issue with the implementation of capture groups: when a capture group is empty it will return "null" (in plain text) instead of nothing so if I try to capture series of numbers like so

Test text:
22.5.5.2
22.5.6
23
23.1

using the following expression:
^(\d+)(.\d+)?(.\d+)?(.\d+)?$

and I replace it with:
$1$2$3$4

I will get:
22.5.5.2
22.5.6null
23nullnullnull
23.1nullnull

When I would expect to get the test text back without any modification.

[Damien Rembert]

This is to do with the recently implemented feature request:[#953]

[Aaron Madlon-Kay]

Fixed in trunk, [r10347]. Null groups are replaced as the empty string, which is the same behavior as e.g. jEdit.

[Didier Briel]

Closed in the released version 4.1.5 of OmegaT.

Didier