Hi Ben,
There are way too many syntax groups, and they overflow into syntax
clusters, because clusters are stored in a high part of the syntax group
id number-space, and Vim doesn't check it.
The attached preliminary patch puts in a check for this and a couple of
other possible syntax overflow conditions, so we should get errors, not
crashes.
It fixes this particular problem for me. An error occurs when the file
is loaded, and scrolling is slow, but doesn't crash, and can be
interrupted with control-C.
Can others test this and confirm?
Your patch prevents the crash for me. Also Vim starts up a lot quicker;
it gives the "Exxx: Too many syntax groups" about ten seconds after
starting Vim, where previously it would hang for about a minute before
responding.
- Peter Odding
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