[Koha-bugs] [Bug 23873] Allow marc modification templates to use capturing groups in substitutions

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23873

Martin Renvoize <martin.renvoize at ptfs-europe.com> changed:

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--- Comment #5 from Martin Renvoize <martin.renvoize at ptfs-europe.com> ---
Created attachment 128431
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https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=128431&action=edit
Bug 23873: Enable capture groups in MarcModificationTemplates

This patch adds support for regular expression capture groups in
MarcModificationTemplates.

We escape double quotes in the replacement string, then quote the whole
string before applying the `ee` modifier to the final regex application.

See
https://blog.james.rcpt.to/2010/10/25/perl-search-and-replace-using-variables/
for further details.

Test plan
1) Attempt to use capture groups in your regular expression based
   MarcModificationTemplate and note it does not work.
2) Apply the patch and try again, this time the capture group should
   yield the expected results.
3) Run t/SimpleMARC.t and confirm the tests still pass.

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