vim-asciidoc: speed up the refresh process for big files

[aerostitch]

Hi guys,

The removal of those lines were requested in Debian to speed up vim's refresh process on big files: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=767179

It has been there for over 2 years now so I thought I might just push it here too (I'll push it in the vim-asciidoc repo too to keep them in sync while the transition is being done) :)

Thanks,
Joseph

[MasterOdin]

I do not use vim at all so I have no idea why one would want or not want those lines. What is their use and what is the downside of removing them?

[aerostitch]

Hi Matthew!

Vim is my only editor. :)

The syn sync * options determine from which position in the file it should start processing syntax rules when the file is opened and then the sync of the highlighting every time something changes in the document.
syn sync fromstart means that the highlighting of the file should be evaluated from the beginning of the document (every time something changes).
syn sync linebreaks=100 any change in the file will clear the syntax caches from a hundred of
previous lines.
Having the 2 together means doing the re-evaluation twice for the entire document every time something changes which is a really odd combination. It's better to leave vim take care of his caches by default. Way faster and I've edited a LOT of documents without ever having an issue with that config in place.

Makes sense?

Joseph