[Koha] Regex backreferences and MARC modification templates in 3.14

[Jonathan Druart]

Hi Jason,

This is not possible yet, but I submitted an improvement for Marc
modification templates on bug 11319. It will allow to do something
like:
  replace '^' with 'BEGIN' and '$' with 'END'
If 245$a contains 'title', you will be allow to add a rule as:
  copy field 245$a to 245$a using regex s/^/new_value/

Regards,
Jonathan

2014-03-07 22:32 GMT+01:00 Jason Sherman <jsherman at usao.edu>:
> Hi all,
>
> I'm pretty pumped about the marc mod templates, but I have one question.
>  Has anyone been able to use regex backreferences?  Or more broadly, is
> anyone using the mod templates to concatenate values?
>
> I'm trying to prepend a value to a subfield, but when I look at the
> modified marc in the staged records list, I keep getting a literal instead
> of a backreference.
>
> Lets say subfield contains the following:
> some-old-value
>
> If I run a move or copy action against it using regex, I would expect the
> following expression:
> s/(.+)/some-new-value--$1/
>
> to result in the following output:
> some-new-value--some-old-value
>
> instead, I get:
> some-new-value--$1
>
> Note:
> I've also tried using other capture group notation (\1 \g1) instead of the
> dollar sign and I still get a literal.
>
> Thanks!
>
> --
> Jason Sherman
> Systems Librarian
> University of Science and Arts of Oklahoma
> 405.574.1340
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