* Re: Converting filenames
[not found] <722c8495-60f9-4a06-9c36-2226dc942390@5g2000yqz.googlegroups.com>
@ 2010-07-01 0:42 ` Pascal J. Bourguignon
2010-07-01 4:25 ` B. T. Raven
2010-12-11 7:35 ` Drew Adams
2 siblings, 0 replies; 5+ messages in thread
From: Pascal J. Bourguignon @ 2010-07-01 0:42 UTC (permalink / raw)
To: help-gnu-emacs
Nordlöw <per.nordlow@gmail.com> writes:
> Is there an opposite function of expand-file-name() that converts "/
> home/per/" to "~/" if I am user per?
Yes. All the functions already exist.
You just have to discover their name.
This function name discovering activity is called "programming".
--
__Pascal Bourguignon__ http://www.informatimago.com/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Converting filenames
[not found] <722c8495-60f9-4a06-9c36-2226dc942390@5g2000yqz.googlegroups.com>
2010-07-01 0:42 ` Converting filenames Pascal J. Bourguignon
@ 2010-07-01 4:25 ` B. T. Raven
2010-07-01 4:31 ` B. T. Raven
2010-12-11 7:35 ` Drew Adams
2 siblings, 1 reply; 5+ messages in thread
From: B. T. Raven @ 2010-07-01 4:25 UTC (permalink / raw)
To: help-gnu-emacs
Nordlöw wrote:
> Is there an opposite function of expand-file-name() that converts "/
> home/per/" to "~/" if I am user per?
>
> Thanks in advance,
> Nordlöw
I don't think that a general inverse function would be useful since "~/"
is probably not a symlink or hard link but just string somehow hard
coded to expand to the fully qualified home path. What would the
putative abbrev-file-name do with dir/subdir/pic.jpg? The only sensible
thing is just to return its argument.
Something like this:
(if (equal (getenv "home") "/home/per") (print "~/"))
illustrates what should happen if the Emacs process belongs to per.
Ed
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Converting filenames
2010-07-01 4:25 ` B. T. Raven
@ 2010-07-01 4:31 ` B. T. Raven
2010-12-11 7:51 ` Kevin Rodgers
0 siblings, 1 reply; 5+ messages in thread
From: B. T. Raven @ 2010-07-01 4:31 UTC (permalink / raw)
To: help-gnu-emacs
B. T. Raven wrote:
> Nordlöw wrote:
>> Is there an opposite function of expand-file-name() that converts "/
>> home/per/" to "~/" if I am user per?
>>
>> Thanks in advance,
>> Nordlöw
>
> I don't think that a general inverse function would be useful since "~/"
> is probably not a symlink or hard link but just string somehow hard
> coded to expand to the fully qualified home path. What would the
> putative abbrev-file-name do with dir/subdir/pic.jpg? The only sensible
> thing is just to return its argument.
>
> Something like this:
>
> (if (equal (getenv "home") "/home/per") (print "~/"))
>
> illustrates what should happen if the Emacs process belongs to per.
>
> Ed
Oops, abbreviate-file-name actually exists but returns only "~". You
could wrap it in something that concats the "/"
Ed
^ permalink raw reply [flat|nested] 5+ messages in thread
* RE: Converting filenames
[not found] <722c8495-60f9-4a06-9c36-2226dc942390@5g2000yqz.googlegroups.com>
2010-07-01 0:42 ` Converting filenames Pascal J. Bourguignon
2010-07-01 4:25 ` B. T. Raven
@ 2010-12-11 7:35 ` Drew Adams
2 siblings, 0 replies; 5+ messages in thread
From: Drew Adams @ 2010-12-11 7:35 UTC (permalink / raw)
To: 'Nordlöw', help-gnu-emacs
> Is there an opposite function of expand-file-name() that converts "/
> home/per/" to "~/" if I am user per?
`abbreviate-file-name'.
Except if your home dir is a root dir.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Converting filenames
2010-07-01 4:31 ` B. T. Raven
@ 2010-12-11 7:51 ` Kevin Rodgers
0 siblings, 0 replies; 5+ messages in thread
From: Kevin Rodgers @ 2010-12-11 7:51 UTC (permalink / raw)
To: help-gnu-emacs
On 6/30/10 10:31 PM, B. T. Raven wrote:
> Oops, abbreviate-file-name actually exists but returns only "~". You
> could wrap it in something that concats the "/"
file-name-as-directory
--
Kevin Rodgers
Denver, Colorado, USA
^ permalink raw reply [flat|nested] 5+ messages in thread
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2010-07-01 0:42 ` Converting filenames Pascal J. Bourguignon
2010-07-01 4:25 ` B. T. Raven
2010-07-01 4:31 ` B. T. Raven
2010-12-11 7:51 ` Kevin Rodgers
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