Stefan Bürk authored Nov 04, 2021 and Christian Kuhn committed Nov 10, 2021

Text cropping on texts with way more than 1000 characters
triggers regular expression compilation errors.
The sweet spot was determined to a value of max 962 characters,
thus leading to internal 'preg_match' error state and throwing
'Compilation failed: regular expression is too large' warning.

The patch crops text in multiple chunks and reassembles the
chunks until crop position was reached to avoid this internal
error exceeding the max regular expression pattern length.

Further tests are added to cover this scenario.

Resolves: #77642
Releases: master, 10.4
Change-Id: I15b778370df0d0a3d3087a0b199c3e16f7a46add
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/72048


Tested-by: core-ci <typo3@b13.com>
Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>