Syntax definition causes SIGV in MacVim

[jldiaz]

I had lots of problems trying to edit a text in markdown about Git, using filetype=pandoc and syntax on. After some research, I've found that the problem is related to the @ char appearing in some contexts. For example, opening the following minimal example with MacVim causes the segfault:

Commit `HEAD@{yesterday}` is one day before current head.

The problem was solved by commenting out the lines which define regexps for pandocPCite (lines 130 to 137) in syntax/pandoc.vim file.

Although I discovered the culprit and solved the issue (at least for me, since I don't need the PCite syntax), I still don't understand why this could cause a segfault, and why only with MacVim version (other vim versions I tried had no problem).

[dsanson]

There is some discussion of this on the vim_mac mailing list:

https://groups.google.com/forum/m/#!topic/vim_mac/ToO2vbVeyyo

If it is a bug in MacVim, then I suppose we should disable this regex when running the buggy versions of macvim.

[lambdalisue]

It is not only for MacVim but for GVim in Debian (wheezy). Maybe because I'm using self compiled version of Vim (not the one comes from package manager)?