Mismatched curly braces cause failure to read any subsequent entries

[dowobeha]

JabRef version

5.9 (latest release)

Operating system

macOS

Details on version and operating system

macOS 13.3.1

Checked with the latest development build

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

1. Open a bib file that contains an entry with mismatched curly braces:

(accuracy of multilingual models by 3 to 15{{\%}.

2. Only entries prior to the mismatched curly braces are read.

Appendix

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[koppor]

Yeah, unfortunately, this is how our parser works.

A fix would go in somewhere near https://github.com/JabRef/jabref/blob/57048c17a296d301bf538f7d98a7c17940e64b07/src/main/java/org/jabref/logic/importer/fileformat/BibtexParser.java#LL912C16-L912C16

Maybe, you have some time to dive into this? We have a number of test cases ensuring that the other parsing behavior is still working.

This is a follow-up to #9668.