Difference between revisions of "Keyboard macros"

From WikEmacs
Jump to navigation Jump to search
(parajumpers parka parajumpers jassen dames moncler canada outlet fgtp)
m (Protected "Keyboard macros": too many vandalism on keyboard macros. ([Edit=Allow only autoconfirmed users] (expires 09:46, 3 April 2015 (UTC)) [Move=Allow only autoconfirmed users] (expires 09:46, 3 April 2015 (UTC))))
(289 intermediate revisions by 55 users not shown)
Line 1: Line 1:
−
Hélas !.  ÿþ<> "A ces porteurs de gros croquenots amateurs d'exercice physique a succédé une génération de jouisseurs, raconte Yves Paccalet. Sauf ça. 
+
{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
−
Divers. Elle sait aussi prendre des risques, comme le prouve le quatuor de silhouettes en jacquard de soie réinterprétant l'imprimé à carreaux des grands sacs que l'on trouve dans les bazars de Barbès. ÿþ<> Pour preuve ? Aux côtés de deux laboratoires de recherche et de cinq agences spatiales, le projet de Michel Fournier a fédéré 45 sociétés, allant du bâtiment aux télécoms ou au textile.
+
'''Keyboard macros''' can be used to automate or repeat tedious editing tasks in Emacs.
−
ÿþh
+
 
−
The Patagonia Men's Drifter is remarkably stable and can handle uneven terrain without the constant fear of turning an ankle. A l'instant où sont tapotées ces lignes, elle m'accompagne et ne peut s'empecher de participer . Un sousv port m la peau offrira une protection thermique tout en absorbant et en la transpiration. All rooms and environment for nosmokers. ÿþ<> <>] Tout respire l'élégance brute chez Loewe cette saison. Dès que le vaste choix hiver difficile la saison d'hiver, sont généralement beaucoup plus une fois de plus la suite de vos proches constructives mois d'été significatifs spg.  
+
 
−
   
+
==Basic Use==
−
Les tenues principale hommes, la plupart des femmes déguisements, les jeunes déguisements, formateurs, enseignants, sacs à main designer et des produits de bonus divers sont présents faisant usage de ces paquets uniformes. La France efficacement  Considéré luxe marque MONCLER et japonais vogue fabricant énergie à construire un haut  Les plus produit Collection Les plus récents lancement du dernier les plus récentes chaussures.  ÿþ<> sandales! De compétition, avec semelles vibram.
+
 
−
ÿþh
+
; {{Keys|F3}}, or {{Keys|C-x (}}
−
Tiffany Earrings will by no means let you down.. Ingrédients : 6 poires de taille moyenne  75 cl de vin rouge  2 bâtons de cannelle  2 clous de girofle  6 grains de poivre noir  Noix de muscade et gingembre  125 g de sucre  zeste d'un citron  zeste d'une orange  un peu de croquant ou de feuilles d'or Vous ne pouvez pas atterrir sur vos talons, vous ne pouvez pas chanceler et vous ne pouvez pas allonger votre foulée.  ÿþ<> Exchange des contraintes excessives, peuvent nuire à vos cheveux cheveux bouclés ou cheveux, même avec un assez fortification. La partie de pêche qui suit vire au piquenique à base de local puis à la sieste en pleine lumière, léger vent du Nord . Personne n'est obligé de savoir que vous l'avez acheté dans une friperie.
+
: Start defining a macro.
 +
; {{Keys|F4}}, or {{Keys|C-x )}}
 +
: Stop defining a macro.
 +
; {{Keys|F4}}, or {{Keys|C-x e}}
 +
: Execute a macro
 +
; {{Keys|C-u 37 C-x e}} or {{Keys|C-u 37 F4}}
 +
: Execute a macro multiple times, using [[prefix argument]]
 +
; {{Keys|C-u 0 C-x e}}
 +
: Execute a macro until the end of the buffer
 +
 
 +
==Example usage==
 +
 
 +
Consider the standard <code>*scratch*</code> buffer:
 +
 
 +
<pre>
 +
;; This buffer is for notes you don't want to save, and for Lisp evaluation.
 +
;; If you want to create a file, visit that file with C-x C-f,
 +
;; then enter the text in that file's own buffer.
 +
</pre>
 +
 
 +
Suppose you want to remove the first occurrence of the letter "a" on every row in that piece of text. You could write a [[regular expression]] to do the job, but let's assume you want to use a keyboard macro this time.
 +
 
 +
# Make sure [[point]] is at the start of the buffer.
 +
# Hit <code>C-x (</code> to start recording your macro. '''Note:''' If you hit <code>C-g</code> or if an error occurs, your keyboard macro recording will stop.
 +
# Hit <code>C-s</code> followed by <code>a</code> to find the first "a". Now, point is right after the first "a" in the text.
 +
# Hit backspace to delete that "a".
 +
 
 +
The first occurrence of "a" of the first line has been deleted. Let's move point to the beginning of the next line and then stop recording.
 +
 
 +
<ol start="5">
 +
<li>Hit <code>C-e C-f</code> to move point to the beginning of the next line.</li>
 +
<li>Hit <code>C-x )</code> to finish the recording of our macro.</li>
 +
</ol>
 +
 
 +
The macro you have just recorded performs the operation of removing the first occurrence of "a" it can find and then moving point to the next line.
 +
 
 +
<ol start="7">
 +
<li>Hit <code>C-x e</code> once to call that macro.</li>
 +
<li>Continue hitting <code>e</code> to call it several times. Hit any other key to get out of the macro repetition.</li>
 +
</ol>
 +
 
 +
== Naming and saving macros ==
 +
 
 +
You can:
 +
* give a name to the most recently defined macro (<code>C-x C-k n</code>)
 +
* bind it to a key sequence (<code>C-x C-k b</code>)
 +
* insert it in the current buffer as lisp code (<code>M-x insert-kbd-macro</code>).
 +
 
 +
{{Manual|emacs|Save-Keyboard-Macro|Save Keyboard Macro}}
 +
 
 +
 
 +
To bind a keyboard macro to a key use <code>C-x C-k b</code>. To avoid problems caused by overriding existing bindings, the key sequences <code>C-x C-k 0</code> through <code>C-x C-k 9</code> and <code>C-x C-k A</code> through <code>C-x C-k Z</code> are reserved for your own keyboard macro bindings.  You can, however, bind a keyboard macro to whatever you like.
 +
 
 +
==Variables==
 +
 
 +
Variables can be stored in lisp or in [[registers]].  Here's an example using lisp:
 +
 
 +
<pre>
 +
[M-: (setq x 1)]
 +
<F3>
 +
Line number [C-u M-: x]
 +
[M-: (setq x (+ x 1))]
 +
<F4>
 +
</pre>
 +
 
 +
Now execute the macro four times with the command <code>C-x e e e e</code> and you get:
 +
 
 +
line number 1<br />
 +
line number 2<br />
 +
line number 3<br />
 +
line number 4
 +
 
 +
 
 +
= See also =
 +
 
 +
* [https://github.com/Silex/elmacro elmacro], to show keyboard macros as emacs-lisp
 +
* [https://github.com/abo-abo/centimacro centimacro] to (temporarily) bind any number of macros to any global shortcuts.
 +
* You can use keyboard macros à la vim in [[evil]].
 +
 
 +
 
 +
[[Category:Intermediate]]
 +
[[Category:Editing]]

Revision as of 09:46, 3 October 2014

Basic Keyboard Macro (`(info "(emacs) Basic Keyboard Macro")')

Keyboard macros can be used to automate or repeat tedious editing tasks in Emacs.


Basic Use

[F3], or [C-x (]
Start defining a macro.
[F4], or [C-x )]
Stop defining a macro.
[F4], or [C-x e]
Execute a macro
[C-u 37 C-x e] or [C-u 37 F4]
Execute a macro multiple times, using prefix argument
[C-u 0 C-x e]
Execute a macro until the end of the buffer

Example usage

Consider the standard *scratch* buffer: 

;; This buffer is for notes you don't want to save, and for Lisp evaluation.
;; If you want to create a file, visit that file with C-x C-f,
;; then enter the text in that file's own buffer.

Suppose you want to remove the first occurrence of the letter "a" on every row in that piece of text. You could write a regular expression to do the job, but let's assume you want to use a keyboard macro this time.

  1. Make sure point is at the start of the buffer.
  2. Hit C-x ( to start recording your macro. Note: If you hit C-g or if an error occurs, your keyboard macro recording will stop.
  3. Hit C-s followed by a to find the first "a". Now, point is right after the first "a" in the text.
  4. Hit backspace to delete that "a".

The first occurrence of "a" of the first line has been deleted. Let's move point to the beginning of the next line and then stop recording.

  1. Hit C-e C-f to move point to the beginning of the next line.
  2. Hit C-x ) to finish the recording of our macro.

The macro you have just recorded performs the operation of removing the first occurrence of "a" it can find and then moving point to the next line.

  1. Hit C-x e once to call that macro.
  2. Continue hitting e to call it several times. Hit any other key to get out of the macro repetition.

Naming and saving macros

You can:

  • give a name to the most recently defined macro (C-x C-k n)
  • bind it to a key sequence (C-x C-k b)
  • insert it in the current buffer as lisp code (M-x insert-kbd-macro).

Save Keyboard Macro (`(info "(emacs) Save Keyboard Macro")')


To bind a keyboard macro to a key use C-x C-k b. To avoid problems caused by overriding existing bindings, the key sequences C-x C-k 0 through C-x C-k 9 and C-x C-k A through C-x C-k Z are reserved for your own keyboard macro bindings. You can, however, bind a keyboard macro to whatever you like.

Variables

Variables can be stored in lisp or in registers. Here's an example using lisp: 

[M-: (setq x 1)]
<F3>
Line number [C-u M-: x]
[M-: (setq x (+ x 1))]
<F4>

Now execute the macro four times with the command C-x e e e e and you get:

line number 1
line number 2
line number 3
line number 4


See also

  • elmacro, to show keyboard macros as emacs-lisp
  • centimacro to (temporarily) bind any number of macros to any global shortcuts.
  • You can use keyboard macros à la vim in evil.
Retrieved from "https://wikemacs.org/index.php?title=Keyboard_macros&oldid=46818"