Re: How to get the folder from a full file path?

On 2020-01-29, Zhe Lee wrote:
>
>
> On Tuesday, January 28, 2020 at 1:16:41 AM UTC+8, Gary Johnson wrote:
>
> On 2020-01-27, Zhe Lee wrote:
> > I know %:p %:t thes things. But What I need now is not
> > current folder I get a full file path from a regex match. 
> >
> > And now I need to get the folder from this full path. 
> >
> > I already Google a lot but can't find useful things all
> > related about "%:t :p" things so how to make it. 
> >
> > This is the code I use in the vimrc file. 
> >
> > function! HandleURL()
> >   let s:uri = matchstr(getline("."), '[a-zA-Z]*:\/[^ >,;]*')
> >   echo s:uri
> >   if s:uri != ""
> >     if s:uri =~ '^http'
> >         silent exec "AsyncRun chrome ".s:uri.""
> >     else
> >         """"""""""""""
> >         "I want to use the totalcmd64 to run the folder of the s:uri here.
> >         """"""""""""""
> >         silent exec "AsyncRun TOTALCMD64 ".s:uri.""
> >     endif
> >   else
> >     echo "No URI found in line."
> >   endif
> > endfunction
>
> I'm not sure I understand.  I think you're looking for fnamemodify()
> and the ":h" modifier, perhaps this:
>
>     silent exec "AsyncRun TOTALCMD64 ".fnamemodify(s:uri, ":h")
>
> See
>
>     :help fnamemodify()
>     :help filename-modifiers
>
> Regards,
> Gary
>
>  
>
>  Thank you. It worked.  But after checking the  manual,  I think  `  silent
> exec "AsyncRun TOTALCMD64 ".fnamemodify(s:uri, ":p:h") `  It's a better
> way.  Am I right? 

You're welcome. I'm glad to hear that it worked.

If s:uri is a path name relative to the current directory, you would
be right. However, if s:uri is a URI naming a file on your local
computer, then I would expect it to begin with "file:", for example:

file:///path/to/file

The part after "file://" is already a full path name, so using ":p"
is not going to help. It is not needed.

>  Thanks a lot for your help, I already find fnamemodify() before
> but seems my English is not good enough. 

You're welcome. I think that ":help expand()" may have a better
explanation of file name expansion, but I don't know whether its
English is any easier to understand.

Regards,
Gary

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