Difference between revisions of "Keyboard macros"

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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))))
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<>] Je préfère aller lentement, le laisser être découvert par le public, à des prix accessibles.  ÿþ<> Chercher la ramonde devient un nouveau but de randonnée.. 18 ans, elle s'apprêtait à intégrer la Parsons School for Design, à New York, et rêvait d'être une artiste. 
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
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En ce beau samedi, en ce début de printemps, après cette semaine de caa, il est de rigueur d'aller tater en douceur les névés restants et zieuter les lacs histoire de prévoir une session truitasse dès l'ouverture en altitude. yaj Air travel across Europe was disrupted for a third day as more snow is forecast for England and Germany. ÿþ<> La chaussure élimine aussi les élévateurs de talon pour distribuer le poids corporel uniformément et ainsi aligner la colonne vertébrale et améliorer la posture, ainsi que stimuler la fonction neurale importante pour l'équilibre et l'agilité.
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'''Keyboard macros''' can be used to automate or repeat tedious editing tasks in Emacs.
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ÿþh
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Maxi: Tout le monde aime le maxi, c'est pourquoi ont été continuerons een voir cette fleur tendance. In fact, they wear more like a sneaker than a hiking shoe, and run true to size. On attaque par la visite guid du razzier, des installations mini les premi gaufres arrivent. Et d'énumérer : la profondeur du relief, sensible au millimètre près, le choix des angles d'attaque du crantage qui donne le mordant nécessaire aux points d'appui clefs de la semelle, le positionnement des surfaces antidérapantes, le calibrage des canaux d'évacuation, le dessin qui permet au besoin de casser la neige collée à la chaussure..  ÿþ<> McDougall a confié que les négociations d'adaptation au cinéma sont actuellement "sur le grill", et qu'il reprendra le projet de script, initialement porté par Sarsgaard. L'idée est bien entendu qu'on ne les grignote pas pour se faire plaisir, mais pour se faire du bien.  
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==Basic Use==
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Rouleaux de PQ, mouchoirs. Après avoir lu plusieurs fois le routard et écumé les forums, nous avons essayé de mettre au point un itinéraire nous permettant de sillonner le sud de l'île en 10 jours. ÿþ<> Cushioned tennis shoes adjust your bodyweight on your.! vibram five fingers, Converse Chuck Taylors in addition to Wrestling shoes usually.  
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ÿþh
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; {{Keys|F3}}, or {{Keys|C-x (}}
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Elle est montée avec une semelle extérieure en Vibram Ecostep élaborée à partir de caoutchouc recycléà 30% pour une légèreté, un amorti et une adhérence optimums.. notre longueur de jambes. Mais tout n'est pas à inventer à chaque exploit, car nombre de technologies existent déjà. ÿþ<> Derni couche: le coupevent en goretex ou windstop (respirant et d rajouter dans le sac dos, une cape de pluie, indispensable en cas de d voire un b parapluie. :A chaque fois qu'une crise sociopolitique se produit, on note que la course gagne en popularité, et je ne pense pas que ce soit parce que c'est un moyen de se distraire à la portée de tous. A sortes paire de baskets à la mode ou peutêtre les bottes comprennent Nike vous offre pas  Travail coût efficace, les ventes Vibram Handy, espérant Newton une portée très vaste.
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: Start defining a macro.
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; {{Keys|F4}}, or {{Keys|C-x )}}
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: Stop defining a macro.
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; {{Keys|F4}}, or {{Keys|C-x e}}
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: Execute a macro
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; {{Keys|C-u 37 C-x e}} or {{Keys|C-u 37 F4}}
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: Execute a macro multiple times, using [[prefix argument]]
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; {{Keys|C-u 0 C-x e}}
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: Execute a macro until the end of the buffer
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==Example usage==
 +
 
 +
Consider the standard <code>*scratch*</code> buffer:
 +
 
 +
<pre>
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;; This buffer is for notes you don't want to save, and for Lisp evaluation.
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;; If you want to create a file, visit that file with C-x C-f,
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;; then enter the text in that file's own buffer.
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</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.
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# 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.
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# 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.
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# Hit backspace to delete that "a".
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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.
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 +
<ol start="5">
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<li>Hit <code>C-e C-f</code> to move point to the beginning of the next line.</li>
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<li>Hit <code>C-x )</code> to finish the recording of our macro.</li>
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</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.
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 +
<ol start="7">
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<li>Hit <code>C-x e</code> once to call that macro.</li>
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<li>Continue hitting <code>e</code> to call it several times. Hit any other key to get out of the macro repetition.</li>
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</ol>
 +
 
 +
== Naming and saving macros ==
 +
 
 +
You can:
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* give a name to the most recently defined macro (<code>C-x C-k n</code>)
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* bind it to a key sequence (<code>C-x C-k b</code>)
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* insert it in the current buffer as lisp code (<code>M-x insert-kbd-macro</code>).
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 +
{{Manual|emacs|Save-Keyboard-Macro|Save Keyboard Macro}}
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 +
 
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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.
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==Variables==
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Variables can be stored in lisp or in [[registers]].  Here's an example using lisp:
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<pre>
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[M-: (setq x 1)]
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<F3>
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Line number [C-u M-: x]
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[M-: (setq x (+ x 1))]
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<F4>
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</pre>
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Now execute the macro four times with the command <code>C-x e e e e</code> and you get:
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 +
line number 1<br />
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line number 2<br />
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line number 3<br />
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line number 4
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= See also =
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* [https://github.com/Silex/elmacro elmacro], to show keyboard macros as emacs-lisp
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* [https://github.com/abo-abo/centimacro centimacro] to (temporarily) bind any number of macros to any global shortcuts.
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* You can use keyboard macros à la vim in [[evil]].
 +
 
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[[Category:Intermediate]]
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[[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.
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