In zsh (for example), the extendedglob option allows for advanced file pattern matching, such as selectively excluding files or directories using patterns like **/foo*~bar (where ~ or ^ is used for exclusion). I attempted to enable this in Vim by setting set shell=/bin/zsh\ -o\ extendedglob, but it had no effect.

It seems Vim relies on the shell to resolve glob patterns, so I expected zsh's extended globbing to work. However, this doesn't seem to be the case. For instance, while find supports recursive globbing with **, it doesn't recognize exclusion patterns like **/foo*~bar.