Some (X)Emacs stuff

• circul.el

  Allows to:

  • Circulate Quickly between buffers (ex: ctrl-kpenter / ctrl-kpadd for backward forward circulating). Customizable regular expressions allow to define which files may or may not appear when circulating.
  • Assign to a buffer or a place in a buffer some key of your keyboard (for example a key of the keypad, or an 'F' key) and come back to this buffer/place by just pressing this key again.

    It is quite useful when one needs to quickly switch between different places in one or several buffers, typically when programming.

    It is very light, as emacs provides something called "registers" which mainly does the work. Actually this package only simplifies the key bindings for this feature by dedicating some keys to it (like the keys of the num pad).

    The file circul-keys-pc.el is an example of key assignation for circul.el, it makes use of the keypad on the right of a standard pc keyboard (I never use it). Modify it as you want, a good idea is to use f(1-10) keys instead.

  BUGS

  • tell me

• holes.tgz

  Updated on Mar 1th 2005 (corrected: bug on last buffer line).

  This is inspired from other interactive programs ( Pcoq ). It allows to defines "holes" in your buffer. A hole is a piece of text (with nothing particular except it is highlighted) that may be replaced by another piece of text later. This feature is useful to build complicated expressions by copy pasting several peaces of text from different parts of a buffer (even from different buffers). Holes are just highlighted pieces of your buffer, nothing is written in your file and you can delete holes exactly like normal characters (there are other ways to delete a hole, see below).

  
  

  USE

  There is always one or zero active hole, highlighted with a different color.

  To define a hole, two methods:
  • Select a region with keyboard (ctrl-space) or mouse, then hit ctrl-c h
  • Select text with mouse while pressing ctrl + meta.
  If the region is empty, then a hole containing '#' is created.

  To activate a hole, click on it with the button 1 of your mouse.

  To forget a hole without deleting its text, click on it with the button 2(middle) of your mouse.

  To destroy a hole and delete its text, click on it with the button 3 of your mouse.

  To replace the active hole first make sure it is active, then two methods:

  • Select text with keyboard (ctrl-space) or mouse and hit ctrl-c ctrl-y
  • Select text with mouse while pressing ctrl + meta + shift. This is a generalization of the mouse-track-insert feature (ctrl + select text, if you don't know this, try it :-))
  The following hole is automatically made active.

  to jump to the active hole, just hit meta-return. You must be in the buffer containing the active hole. the point will move to the active hole, and the active hole will be destroyed so you can type something to put at its place. The following hole is automatically made active, so you can hit meta-return again.

  
  

  It is also useful in conjonction with abbreviations, for example in c-mode I use "f" as an abbreviation for for(#;#;#) {#}, where each # is a hole, then hitting meta-return goes from one hole to the following and I can fill-in each hole very quickly. This last trick needs some very simple manipulation on your abbrev file. See some examples in my : abbrev file .

  There are four files in this archive, three of them are used to deal with this f... Emacs/Xemacs incompatibility.

  BUGS

  • Dont try to make overlapping holes, it doesn't work. (what would it mean anyway?)
  • With FSF emacs, cutting or pasting a hole wil not produce new holes, and undoing on holes cannot make reappear holes. With Xemacs it will, but if you copy paste the active hole, you will get several holes highlighted as the active one, which is annoying.
  • tell me

To use these two files, download them and put them (untar holes.tgz with the command tar xvfz holes.tgz, you get a directory with four files) somewhere Xemacs can find them. Then put this in you initialization file:

The files span.el, span-extent.el and span.el are from the ProofGeneral mode. Everything is under GPL. It should work on both FSF Emacs(21) and Xemacs. Ideas for improvement and bug reports are welcome.

Emacs and LaTeX

 (add-hook 'LaTeX-mode-hook '(lambda () 
    (turn-on-reftex); Turn on RefTeX Minor Mode for all LaTeX files
    (define-key LaTeX-mode-map [(control f12)] 'TeX-next-error)
    (define-key LaTeX-mode-map [(control f11)]
      '(lambda () (interactive) 
         (TeX-command-menu "LaTeX")))
    

(defvar latex-process-timer nil
  "the timer used to watch latex and dvips processes.")

(defun send-sig (process-string sig)
  "sends sig signal to every process having name process-string"
  (interactive)
  (call-process "killall" nil nil nil sig process-string))
(defun wait-latex-xdvi ()
  "wait for the latex process to stop, and send the USR1 signal to all
  running xdvi.bin processes"
  (if (TeX-active-process)
      ()
    (let ((x (current-message)))
      (send-sig "xdvi.bin" "-USR1")
      (if (featurep 'xemacs) (delete-itimer latex-process-timer) 
	(cancel-timer latex-process-timer))
      (message x))
    )
  )

(defun latex-xdvi () 
  (interactive) 
  (TeX-command-menu "LaTeX")
  (setq latex-process-timer (run-with-timer 1 1 'wait-latex-xdvi)) ;; latex-process-timer is a global variable
  )


    

(add-hook 'LaTeX-mode-hook '(lambda () 
  ...
  (define-key LaTeX-mode-map [(control f11)] 'latex-xdvi))
)