Re: How to fold or hide the comment in vimrc file?

On Friday, December 16, 2016 at 10:42:07 PM UTC+8, Gary Johnson wrote:
> On 2016-12-16, Nikolay Aleksandrovich Pavlov wrote:
> > 2016-12-16 5:41 GMT+03:00 Zhe Lee
> > > I want to fold or hide the comment in the vimrc file.
> > > I Google it and find mainly the 2 solution below but none of them worked.
> > >
> > >
> > > syn match comment "\v(^\s*\".*\n)+" fold
> > >
> > > set foldmethod=expr foldexpr=getline(v:lnum)=~'^\s*"'
> > >
> > >
> > > My Vimrc file is like this, when I enter the 2 commands above nothing happens.
> >
> > First solution is incomplete (and probably will work only if you
> > disable syntax highlighting or modify syntax/vim.vim file, not sure),
> > second solution is incorrect: while it clearly was supposed to set
> > `&foldexpr` to `getline(v:lnum)=~'^\s*"'`, it really sets it to
> > `getline(v:lnum)=~'^s`: missing proper escaping results in `\s`
> > transformed into `s` (backslash needs to be escaped) and `"` starting
> > a comment (needs to be escaped too). In addition to this it is using
> > :set setting global values alongside with local while it should use
> > :setlocal to set only local values. Proper second variant is
> >
> > let &l:foldexpr='getline(v:lnum)=~#'.string('^\s*"')
>
> Setting 'foldexpr' doesn't have to be that complicated. Simply
> fixing the escaping of the backslash and the double-quote will fix
> the problem.
>
> setlocal foldmethod=expr foldexpr=getline(v:lnum)=~'^\\s*\"'
>
> Regards,
> Gary

I have tried this command `setlocal foldmethod=expr foldexpr=getline(v:lnum)=~'^\\s*\"'` in my vimrc file should the line start with " be folded? Nothing happened in my vimrc file. Why is that ?

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