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

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

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