emacs equivalent of vi %

emacs equivalent of vi %

[Rustom Mody]

In vi one can do, for example,
:!gcc %
and the current file gets compiled -- ingeneral :
:!someCommand options % otherStuff
and the filename gets interpolated.
Is there any way to get the '%' behavior in emacs?
[Note: I know about compile; I am asking a more general question about
getting the filename]

Re: emacs equivalent of vi %

[Lennart Borgman (gmail)]

http://www.emacswiki.org/cgi-bin/wiki/ViKeys

Rustom Mody wrote:
> In vi one can do, for example,
> :!gcc %
> and the current file gets compiled -- ingeneral :
> :!someCommand options % otherStuff
> and the filename gets interpolated.
> Is there any way to get the '%' behavior in emacs?
> [Note: I know about compile; I am asking a more general question about
> getting the filename]
> 
> 
> 

Re: emacs equivalent of vi %

[Rustom Mody]

On Wed, Aug 13, 2008 at 3:04 PM, Lennart Borgman (gmail)
<lennart.borgman@gmail.com> wrote:
> http://www.emacswiki.org/cgi-bin/wiki/ViKeys

But this does not answer my problem.  In vi you can use the visual
(aka VIsual) part or the ex part -- commands that you give with a ':'
(somewhat like M-x which puts you in the minibuffer).

The % behavior in vi -- paren matchng -- is quite unrelated to the %
in ex which substitutes (interpolates) the current file name into the
command

Re: emacs equivalent of vi %

[Lennart Borgman (gmail)]

Rustom Mody wrote:
> On Wed, Aug 13, 2008 at 3:04 PM, Lennart Borgman (gmail)
> <lennart.borgman@gmail.com> wrote:
>> http://www.emacswiki.org/cgi-bin/wiki/ViKeys
> 
> But this does not answer my problem.  In vi you can use the visual
> (aka VIsual) part or the ex part -- commands that you give with a ':'
> (somewhat like M-x which puts you in the minibuffer).
> 
> The % behavior in vi -- paren matchng -- is quite unrelated to the %
> in ex which substitutes (interpolates) the current file name into the
> command

Ah, sorry. Look at the compile command:

   C-h f compile

Re: emacs equivalent of vi %

[Rustom Mody]

On Wed, Aug 13, 2008 at 4:40 PM, Lennart Borgman (gmail)
<lennart.borgman@gmail.com> wrote:
> Rustom Mody wrote:
>>
>> On Wed, Aug 13, 2008 at 3:04 PM, Lennart Borgman (gmail)
>> <lennart.borgman@gmail.com> wrote:
>>>
>>> http://www.emacswiki.org/cgi-bin/wiki/ViKeys
>>
>> But this does not answer my problem.  In vi you can use the visual
>> (aka VIsual) part or the ex part -- commands that you give with a ':'
>> (somewhat like M-x which puts you in the minibuffer).
>>
>> The % behavior in vi -- paren matchng -- is quite unrelated to the %
>> in ex which substitutes (interpolates) the current file name into the
>> command
>
> Ah, sorry. Look at the compile command:
>
>  C-h f compile
>

Yeah I know about compile but I am interested in interpolating the
file name into an arbitrary command (not just gcc)

Roughly I know what to do:

Bind the character '%' to
(file-name-nondirectory (buffer-file-name))
in the keymap that is in effect when shell-command ( M-! )  is running.

Im only not sure which keymap (and/or how to find it)

Re: emacs equivalent of vi %

[Nikolaj Schumacher]

"Rustom Mody" <rustompmody@gmail.com> wrote:

> Roughly I know what to do:
>
> Bind the character '%' to
> (file-name-nondirectory (buffer-file-name))
> in the keymap that is in effect when shell-command ( M-! )  is running.
>
> Im only not sure which keymap (and/or how to find it)

You can find it with M-x apropos.
The minibuffer-.*-map variables look interesting.

Unfortunately I think there's no guarantee it will work everywhere, as
other commands might override the keymap.  You might be able to override
them once more by hooking into: `minibuffer-setup-hook'.

Also, note that you'll need to make an interactive function out of the
form to bind it to a key.


regards,
Nikolaj Schumacher

Re: emacs equivalent of vi %

[Nikolaj Schumacher]

Nikolaj Schumacher <n_schumacher@web.de> wrote:

> "Rustom Mody" <rustompmody@gmail.com> wrote:
>
>> Bind the character '%' to
>> (file-name-nondirectory (buffer-file-name))
>
> Also, note that you'll need to make an interactive function out of the
> form to bind it to a key.

Oups, that's not all...
It won't work, because `buffer-file-name' will of course return the
minibuffer's file name (i.e. none).  I'm currently not aware of an easy
way to get the originating buffer from the minibuffer.  Sorry.

regards,
Nikolaj Schumacher

Re: emacs equivalent of vi %

[Lennart Borgman (gmail)]

Nikolaj Schumacher wrote:
> Nikolaj Schumacher <n_schumacher@web.de> wrote:
> 
>> "Rustom Mody" <rustompmody@gmail.com> wrote:
>>
>>> Bind the character '%' to
>>> (file-name-nondirectory (buffer-file-name))
>> Also, note that you'll need to make an interactive function out of the
>> form to bind it to a key.
> 
> Oups, that's not all...
> It won't work, because `buffer-file-name' will of course return the
> minibuffer's file name (i.e. none).  I'm currently not aware of an easy
> way to get the originating buffer from the minibuffer.  Sorry.


Maybe minibuffer-selected-window + window-buffer?

Re: emacs equivalent of vi %

[Kevin Rodgers]

Lennart Borgman (gmail) wrote:
> Nikolaj Schumacher wrote:
>> Nikolaj Schumacher <n_schumacher@web.de> wrote:
>>
>>> "Rustom Mody" <rustompmody@gmail.com> wrote:
>>>
>>>> Bind the character '%' to
>>>> (file-name-nondirectory (buffer-file-name))
>>> Also, note that you'll need to make an interactive function out of the
>>> form to bind it to a key.
>>
>> Oups, that's not all...
>> It won't work, because `buffer-file-name' will of course return the
>> minibuffer's file name (i.e. none).  I'm currently not aware of an easy
>> way to get the originating buffer from the minibuffer.  Sorry.
> 
> 
> Maybe minibuffer-selected-window + window-buffer?

Brilliant!

(defvar minibuffer-insert-buffer-directory nil)

(defun minibuffer-insert-buffer-file-name ()
   (interactive)
   (unless (minibuffer-window-active-p (selected-window))
     (error "Minibuffer window is not active"))
   (let ((minibuffer-selected-buffer-file-name
	 (buffer-file-name (window-buffer (minibuffer-selected-window)))))
     (insert (if minibuffer-insert-buffer-directory
		minibuffer-selected-buffer-file-name
	      (file-name-nondirectory minibuffer-selected-buffer-file-name)))))

(define-key minibuffer-local-map "%" 'minibuffer-insert-buffer-file-name)
(define-key minibuffer-local-completion-map "%" nil)

-- 
Kevin Rodgers
Denver, Colorado, USA

Re: emacs equivalent of vi %

[Rustom Mody]

Thanks folks!  Heres the code I have:

(define-key minibuffer-local-map "%" 'percentsub)
(defun percentsub ()
  (interactive)
  (insert (file-name-nondirectory
	   (buffer-file-name
	    (window-buffer (minibuffer-selected-window))))))

Prior to Lennarts suggestion I had hacked together
(cadr (buffer-list))
in place of the last line which was of course quite unacceptable

Any further suggested improvements?  I guess this is going to fail in
some cases when theres no filename...

On Thu, Aug 14, 2008 at 5:44 AM, Lennart Borgman (gmail)
<lennart.borgman@gmail.com> wrote:
> Nikolaj Schumacher wrote:
>>
>> Nikolaj Schumacher <n_schumacher@web.de> wrote:
>>
>>> "Rustom Mody" <rustompmody@gmail.com> wrote:
>>>
>>>> Bind the character '%' to
>>>> (file-name-nondirectory (buffer-file-name))
>>>
>>> Also, note that you'll need to make an interactive function out of the
>>> form to bind it to a key.
>>
>> Oups, that's not all...
>> It won't work, because `buffer-file-name' will of course return the
>> minibuffer's file name (i.e. none).  I'm currently not aware of an easy
>> way to get the originating buffer from the minibuffer.  Sorry.
>
>
> Maybe minibuffer-selected-window + window-buffer?
>

Re: emacs equivalent of vi %

[Lennart Borgman (gmail)]

Rustom Mody wrote:
> Thanks folks!  Heres the code I have:
> 
> (define-key minibuffer-local-map "%" 'percentsub)
> (defun percentsub ()
>   (interactive)
>   (insert (file-name-nondirectory
> 	   (buffer-file-name
> 	    (window-buffer (minibuffer-selected-window))))))
> 
> Prior to Lennarts suggestion I had hacked together
> (cadr (buffer-list))
> in place of the last line which was of course quite unacceptable
> 
> Any further suggested improvements?  I guess this is going to fail in
> some cases when theres no filename...

If you want to add it just to the ":" prompt:

(eval-after-load 'viper-keym
   '(define-key viper-ex-cmd-map [?%] 'percentsub))

> On Thu, Aug 14, 2008 at 5:44 AM, Lennart Borgman (gmail)
> <lennart.borgman@gmail.com> wrote:
>> Nikolaj Schumacher wrote:
>>> Nikolaj Schumacher <n_schumacher@web.de> wrote:
>>>
>>>> "Rustom Mody" <rustompmody@gmail.com> wrote:
>>>>
>>>>> Bind the character '%' to
>>>>> (file-name-nondirectory (buffer-file-name))
>>>> Also, note that you'll need to make an interactive function out of the
>>>> form to bind it to a key.
>>> Oups, that's not all...
>>> It won't work, because `buffer-file-name' will of course return the
>>> minibuffer's file name (i.e. none).  I'm currently not aware of an easy
>>> way to get the originating buffer from the minibuffer.  Sorry.
>>
>> Maybe minibuffer-selected-window + window-buffer?
>>
> 

Re: emacs equivalent of vi %

[Kevin Rodgers]

Rustom Mody wrote:
> Thanks folks!  Heres the code I have:
> 
> (define-key minibuffer-local-map "%" 'percentsub)
> (defun percentsub ()
>   (interactive)
>   (insert (file-name-nondirectory
> 	   (buffer-file-name
> 	    (window-buffer (minibuffer-selected-window))))))
> 
> Prior to Lennarts suggestion I had hacked together
> (cadr (buffer-list))
> in place of the last line which was of course quite unacceptable
> 
> Any further suggested improvements?  I guess this is going to fail in
> some cases when theres no filename...

As it should, no?  You can get a more informative error with

	(insert (or (file-name-nondirectory ...)
	            (error "Selected buffer is not visiting a file")))

or you can get a default value inserted (here ".") with

	(insert (or (file-name-nondirectory ...)
	            "."))

-- 
Kevin Rodgers
Denver, Colorado, USA

Re: emacs equivalent of vi %

[Jason Rumney]

On Aug 14, 7:50 am, Nikolaj Schumacher <n_schumac...@web.de> wrote:

> Oups, that's not all...
> It won't work, because `buffer-file-name' will of course return the
> minibuffer's file name (i.e. none).  I'm currently not aware of an easy
> way to get the originating buffer from the minibuffer.  Sorry.

(window-buffer (minibuffer-selected-window))

RE: emacs equivalent of vi %

[Arnaldo Mandel]

Rustom Mody wrote (on Aug 13, 2008):
 > In vi one can do, for example,
 > :!gcc %
 > and the current file gets compiled -- ingeneral :
 > :!someCommand options % otherStuff
 > and the filename gets interpolated.
 > Is there any way to get the '%' behavior in emacs?
 > [Note: I know about compile; I am asking a more general question about
 > getting the filename]

See

   shell-command-on-region

or, better yet,

   shell-command-with-completion-on-region

-- 
Arnaldo Mandel                        
Departamento de Ciência da Computação - Computer Science Department
Universidade de São Paulo, Bra[sz]il	  
am@ime.usp.br
Talvez você seja um Bright http://the-brights.net Maybe you are a Bright.

Re: emacs equivalent of vi %

[Xah]

In dired, you can type “!” to run a command on a file.
On Aug 12, 11:52 pm, "Rustom Mody" <rustompm...@gmail.com> wrote:
> In vi one can do, for example,
> :!gcc %
> and the current file gets compiled -- ingeneral :
> :!someCommand options % otherStuff
> and the filename gets interpolated.
> Is there any way to get the '%' behavior in emacs?
> [Note: I know about compile; I am asking a more general question about
> getting the filename]

as far as i know there's no similar mechanism. Here's related things i
know:

This code will run the current file:

(defun run-current-file ()
  "Execute or compile the current file.
For example, if the current buffer is the file x.pl,
then it'll call “perl x.pl” in a shell.
The file can be php, perl, python, bash, java.
File suffix is used to determine what program to run."
(interactive)
  (let (ext-map file-name file-ext prog-name cmd-str)
; get the file name
; get the program name
; run it
    (setq ext-map
          '(
            ("php" . "php")
            ("pl" . "perl")
            ("py" . "python")
            ("sh" . "bash")
            ("java" . "javac")
            )
          )
    (setq file-name (buffer-file-name))
    (setq file-ext (file-name-extension file-name))
    (setq prog-name (cdr (assoc file-ext ext-map)))
    (setq cmd-str (concat prog-name " " file-name))
    (shell-command cmd-str)))

For detail, see:
http://xahlee.org/emacs/elisp_run_current_file.html

You can easily modify it so that it takes a string, replace % with
filename, and run it as a shell command, like vi's %.

What you need to do is query users by a prompt, then take the string
and do replacement on it. Then call shell command on it as above.
Here's a tutorial on these:
 http://xahlee.org/emacs/elisp_idioms.html


"Rustom Mody" wrote:
> Roughly I know what to do:
>
> Bind the character '%' to
> (file-name-nondirectory (buffer-file-name))
> in the keymap that is in effect when shell-command ( M-! )  is running.
>
> Im only not sure which keymap (and/or how to find it)

if you implement it as i suggested above, then you don't need to
override any keymaps.

For what's worth, the minibuffer's map is minibuffer-local-map, and
the local keymap used by shell is comint-mode-map. For some detail,
see:
 http://xahlee.org/emacs/ergonomic_emacs_keybinding_minibuffer.html

  Xah
∑ http://xahlee.org/

☄

Re: emacs equivalent of vi %

[Scott Frazer]

Rustom Mody wrote:
> In vi one can do, for example,
> :!gcc %
> and the current file gets compiled -- ingeneral :
> :!someCommand options % otherStuff
> and the filename gets interpolated.
> Is there any way to get the '%' behavior in emacs?
> [Note: I know about compile; I am asking a more general question about
> getting the filename]
> 
> 

How about this:

(defun shell-command-on-current-file (command &optional output-buffer error-buffer)
   (interactive (list (read-from-minibuffer "Shell command: "
                                            nil nil nil 'shell-command-history)
                      current-prefix-arg
                      shell-command-default-error-buffer))
   (unless (buffer-file-name)
     (error "No file associated with this buffer"))
   (setq command (replace-regexp-in-string "%" (buffer-file-name) command nil t))
   (shell-command command output-buffer error-buffer))


Scott

Re: emacs equivalent of vi %

[Emmett Grogan]

Xah:
> This code will run the current file:
>
> (defun run-current-file ()
>   "Execute or compile the current file....
>   
I assembled a elisp module out of it. In case someone is interested:

;; Version: $Id: run-current-file.el 4518 2008-08-13 21:31:36Z 
emmettgrogan $
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software
;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;;
;; Commentary:
;;
;; Original author: Xah Lee
;;; Adapted from http://xahlee.org/emacs/elisp_run_current_file.html
;;
;;; Code:
;;
;;;###autoload
;;;
(defgroup run-current-file-menu nil
"Execute or compile the current file.")
;;
(defcustom run-current-file-name-masks
'(
("php" . "php")
("pl" . "perl")
("py" . "python")
("sh" . "bash")
("java" . "javac")
)
"Filename extensions that switch on run-current-file.")
;;
(defun run-current-file ()
"Execute or compile the current file.
For example, if the current buffer is the file x.pl,
then it'll call “perl x.pl” in a shell.
The file can be php, perl, python, bash, java.
File suffix is used to determine what program to run."
(interactive)
(let (run-current-file-name-masks file-name file-ext prog-name cmd-str)
; get the file name
; get the program name
; run it
(setq file-name (buffer-file-name))
(setq file-ext (file-name-extension file-name))
(setq prog-name (cdr (assoc file-ext run-current-file-name-masks)))
(setq cmd-str (concat prog-name " " file-name))
(shell-command cmd-str))
)
;;
(provide 'run-current-file)
;;; (run-current-file) ends here

Re: emacs equivalent of vi %

[Xah]

On Aug 15, 10:02 am, Emmett Grogan <emmettgro...@freenet.de> wrote:
> Xah:> This code will run the current file:
>
> > (defun run-current-file ()
> >   "Execute or compile the current file....
>
> I assembled a elisp module out of it. In case someone is interested:
>
> ;; Version: $Id: run-current-file.el 4518 2008-08-13 21:31:36Z
> emmettgrogan $
> ;;
> ;; This program is free software; you can redistribute it and/or modify
> ;; it under the terms of the GNU General Public License as published by
> ;; the Free Software Foundation; either version 2, or (at your option)
> ;; any later version.
> ;;
> ;; This program is distributed in the hope that it will be useful,
> ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
> ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> ;; GNU General Public License for more details.
> ;;
> ;; You should have received a copy of the GNU General Public License
> ;; along with this program; if not, write to the Free Software
> ;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> ;;
> ;; Commentary:
> ;;
> ;; Original author: Xah Lee
> ;;; Adapted from http://xahlee.org/emacs/elisp_run_current_file.html
> ;;
> ;;; Code:
> ;;
> ;;;###autoload
> ;;;
> (defgroup run-current-file-menu nil
> "Execute or compile the current file.")
> ;;
> (defcustom run-current-file-name-masks
> '(
> ("php" . "php")
> ("pl" . "perl")
> ("py" . "python")
> ("sh" . "bash")
> ("java" . "javac")
> )
> "Filename extensions that switch on run-current-file.")
> ;;
> (defun run-current-file ()
> "Execute or compile the current file.
> For example, if the current buffer is the file x.pl,
> then it'll call “perl x.pl” in a shell.
> The file can be php, perl, python, bash, java.
> File suffix is used to determine what program to run."
> (interactive)
> (let (run-current-file-name-masks file-name file-ext prog-name cmd-str)
> ; get the file name
> ; get the program name
> ; run it
> (setq file-name (buffer-file-name))
> (setq file-ext (file-name-extension file-name))
> (setq prog-name (cdr (assoc file-ext run-current-file-name-masks)))
> (setq cmd-str (concat prog-name " " file-name))
> (shell-command cmd-str))
> )
> ;;
> (provide 'run-current-file)
> ;;; (run-current-file) ends here

O, thank you.

The code i did could use some improvement. Right now it doesn't run in
the background. i.e. while it executes, your emacs is as good as
frozen. I meant to make it a background process... but there's more
coding needs to be done to get the outpt when it is done using some
elisp's “process sentinel”...

also, the hard-coded file name suffix and program name map could
perhaps employ magic-mode-alist and or auto-mode-alist...

anyone's very welcome to fork it of course.

  Xah
∑ http://xahlee.org/

☄

Re: emacs equivalent of vi %

[Chat]

Emmett Grogan <emmettgrogan@freenet.de> writes:

> Xah:
>> This code will run the current file:
>>
>> (defun run-current-file ()
>>   "Execute or compile the current file....
>>   
> I assembled a elisp module out of it. In case someone is interested:
>
> ;; Version: $Id: run-current-file.el 4518 2008-08-13 21:31:36Z emmettgrogan $
> ;;
> ;; This program is free software; you can redistribute it and/or modify
> ;; it under the terms of the GNU General Public License as published by
> ;; the Free Software Foundation; either version 2, or (at your option)
> ;; any later version.
> ;;
> ;; This program is distributed in the hope that it will be useful,
> ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
> ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> ;; GNU General Public License for more details.
> ;;
> ;; You should have received a copy of the GNU General Public License
> ;; along with this program; if not, write to the Free Software
> ;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> ;;
> ;; Commentary:
> ;;
> ;; Original author: Xah Lee
> ;;; Adapted from http://xahlee.org/emacs/elisp_run_current_file.html
> ;;
> ;;; Code:
> ;;
> ;;;###autoload
> ;;;
> (defgroup run-current-file-menu nil
> "Execute or compile the current file.")
> ;;
> (defcustom run-current-file-name-masks
> '(
> ("php" . "php")
> ("pl" . "perl")
> ("py" . "python")
> ("sh" . "bash")
> ("java" . "javac")
> )
> "Filename extensions that switch on run-current-file.")
> ;;
> (defun run-current-file ()
> "Execute or compile the current file.
> For example, if the current buffer is the file x.pl,
> then it'll call “perl x.pl” in a shell.
> The file can be php, perl, python, bash, java.
> File suffix is used to determine what program to run."
> (interactive)
> (let (run-current-file-name-masks file-name file-ext prog-name cmd-str)
> ; get the file name
> ; get the program name
> ; run it
> (setq file-name (buffer-file-name))
> (setq file-ext (file-name-extension file-name))
> (setq prog-name (cdr (assoc file-ext run-current-file-name-masks)))
> (setq cmd-str (concat prog-name " " file-name))
> (shell-command cmd-str))
> )
> ;;
> (provide 'run-current-file)
> ;;; (run-current-file) ends here
This seems to fall into two different cases - one that compiles the file and
another that runs or views the file. The first one can perhaps be done with a
wrapper on "compile" instead of shell-command so that all of the benefits of
compile are abailable. 
If you do not want to do that work, Perhaps a default makefile with rules for
all types of files would make M-x compile usable as it is.