Difference between revisions of "Keyboard macros"

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<>] Démarrez la journée du bon pied avec une douche parfumée aux arômes végétaux, de foin coupé ou de fruits du verger.  ÿþ<> C'est assez jouissif.". <>]. 
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
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They appear fantastic on any individual who need to practical experience the type of manner. This aggressive multisport design inherits what we love about the KSO with functional improvements that appeal to the most active fitness enthusiast.  ÿþ<> Not recommended for teenagers, but for a woman who just found a job at a big company and wants something to show for coach outlet online.
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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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Avec aucune difficulté à février 1955, lutte contre le retour COCO CHANEL rapporté de n'importe quelle variété ambiguïté en utilisant un rectangle en acier inoxydable. Depuis 1991, année de la création de l'Association francilienne de la randonnée, Bernard, ingénieur à la retraite, se fait guide un dimanche par mois pour accompagner un groupe de marcheurs sur les sentiers de la région parisienne. J'y pense et j'oublie pas. Tout comme les furlane vénitiennes, les espadrilles catalanes et les mocassins indiens, les babouches sont des chaussures fermées que l'usage exige d'enfiler sans effort, donc sans se baisser, en rabattant façon pliage la tige arrière. ÿþ<> Earlier today, Heathrow said delays are expected for the next several days. Je n'en tiens aucune rancune à l'Armée de mon pays qui se laisse un peu aller ces derniers temps, hélas.  
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==Basic Use==
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The guest house provides with splendid and very ample nonsmoking suite guest rooms, carefully decorated and equipped with colour TV, minifridge, heating, private bathroom (BidetShowerBathHairdryer Toiletries complimentaryNO HYDROMASSAGE). Il y a là un discours initiatique qui transcende les religions. ÿþ<> A l'issue de 6 jours de course au départ de L'ArgentièrelaBessée (HautesAlpes), dans le massif des Ecrins, en passant par le Queyras, le Mercantour pour finir sur la Riviera française à Roquebrune Cap Martin (AlpesMaritimes), les Championnats du monde de Raid Aventure, disputés dans la cadre du Raid in France, ont sacré l'équipe Seagate (Nathan Fa'avae, Sophie Hart, Chris Forne, Trevor Voyce).  
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ÿþh
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; {{Keys|F3}}, or {{Keys|C-x (}}
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Il faut attendre 1936 et les congés payés pour que les Français commencent à baguenauder. Je vais prier, la neige. Mais tout n'est pas à inventer à chaque exploit, car nombre de technologies existent déjà.  ÿþ<> Les habitués de Fontainebleau décident d'imiter le promeneur visionnaire qui, dans les années 1840, marqua de signes bleus ses itinéraires à travers la forêt. Les principaux indicateurs de la marque jaune, qui fabrique toujours dans ses deux seules usines, installées en Italie sur les bords du lac de Varèse, font des envieux : 60.000 paires par semaine au plus bas de la saison, plus de 32 millions sur l'année, 100 millions d'euros de chiffre d'affaires et zéro d'endettement.. Cette model utilise la technologie Biodry System.
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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 12:38, 18 June 2016

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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