Difference between revisions of "Keyboard macros"

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Codroipo , Udin , Trecesin .  ÿþ<> Bien souvent, il se sent alors honteux, se décourage et déclare ne pas aimer écrire.. Après plusieurs EP, le groupe irlandais sort son premier disque Isn't Anything, douze titres pleins de rêverie, faits de couches de guitare et de voix éthérées gonflée à la réverb. 
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
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Y restera til ? Pour le savoir, rendezvous mercredi aux alentours de 14h10. Une statistique résume ce match : les deux joueurs ont remporté 191 points chacun. ÿþ<> <>]. 
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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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Symboliquement, il a muri, devenu adulte, non pas par les armes, mais ayant pris conscience de l'importance de tracer son chemin luimême, de trouver un but à son voyage.. Sinon,quand il m'achete des cigarettes dans d'autres payes (question prix) il me demande le rembousement. Je lui ai demandé ce qu'il penserait d'un homme qui tiendrait le même discours à sa femme et son énervement est monté d'un cran !"Elle explique ensuite en détails comment s'est déroulée la scène d'une rare violence qui a suivie : " Pour le faire taire, je prends le produit vaisselle, qui atterrit sur son teeshirt. En revanche, imaginons que j'écrive une vérité avérée comme :  Au bout de trois ou quatre mois d'utilisation, les bulles des Nike Air se percent et mes chaussures (autour de 1000 FF la paire) feront un bruit bizarre le reste du temps où je les porterai. ÿþ<> Prestige Guichen (11) aurait pu remporter son quinté en dernier lieu mais avait finalement été rejoint par Quelle Copine à la fin. C'est un livre qu'il faut prendre le temps de découvrir et qui se lit lentement.  
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==Basic Use==
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C'est une erreur fréquente de croire que la science a réfuté ces idées, en apportant une réponse non religieuse à ces questions (par exemple, le darwinisme comme explication de l'origine de la complexité). Parfois, mieux vaut rester sur sa première impression car elle est généralement la bonne.  ÿþ<> En 2008, l Diaspora Union Millennium Council a obtenu le statut d ad hoc auprès du Comité intergouvernemental de l relatif aux ressources génétiques, aux savoirs traditionnels et au folklore et, depuis cette date, il participe activement à ses délibérations internationales.  
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ÿþh
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; {{Keys|F3}}, or {{Keys|C-x (}}
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Elle lance pour cet hiver une nouvelle ligne prix d'or, Fusalp 1952, ann e de sa cr ation par deux tailleurs anneciens. Op53Beethoven Concerto n4 Op58Hector Berlioz. Et puis il y a tellement de choses à acheter !.  ÿþ<> Dans la vie, de manière à ce que chacun trouve chaussure à son pied, il y a des artistes comme Didier Super et Stupeflip, et puis il y a des artistes comme Lambchop et les Tindersticks. Ils lui ont dit de cesser de se servir du souffleur et de râcler avec le râteau, car le souffleur ça fait toujours ça, qu'ils disent.. Le seul conseil que je puisse te donner c : une chose après l Chaque jour, donne toi un objectif (tri des papiers, rangement de telle pile amoncée dans un coin etc.
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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==
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Consider the standard <code>*scratch*</code> buffer:
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<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>
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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.
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# 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>
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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>
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== Naming and saving macros ==
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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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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 09:23, 2 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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