Question

I’m currently using Vim to edit PHP files and would like to implement code folding for functions only. I’ve tried setting the foldmethod=expr and using a regex with foldexpr in my .vimrc file. The problem is i don’t fully understand how foldexpr is using the regex to apply folding to the source code and i can’t seem to get it right.

Basically i want all PHP functions (inside classes too) to be folded and that’s it. The nearest i’ve got is:

set foldexpr=getline(v:lnum-1)=~'function'?'>1':'='

but it’s not right and i want to see if i can be a little more intelligent with the curly braces.

Any ideas?

Answer 1

IIRC folding do not work with regexes because it will slow vim down. You might get what you want by using foldmethod=indent and set foldnestmax to limit the number of nested folds created.