Difference between revisions of "Keyboard macros"

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A regarder le beau livre Blues Vinyls, on imagine a priori un dГ©filГ© de pochettes de disques.  яю<> Les mains calmes, le pГЁre retrousse ses manches comme si jamais ce marquage animal ne l'avait quittГ©. PremiГЁrement, il aimerait le regarder vaincre en tant qu'entraineur, et deuxiГЁmement, il serait aux anges pour son fils, JГ©rГ©my Gaston, qui le drivera pour l'occasion. 
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
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Dans votre empire, comme dans tous les autres empires du luxe, Paris et la France ne constituent pas le marchГ© le plus important. Parce que leurs produits ne sont pas pire que le n beaucoup de gens peuvent penser que je suis juste occasionnel.  яю<> AprГЁs une consultation alimentaire, il comprend chaque jour.
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'''Keyboard macros''' can be used to automate or repeat tedious editing tasks in Emacs.
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яюh
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Si mes amis le souhaitent, et si ils pensent que c'est moi qui dois plutГґt l'incarner, ce s'ra une dГ©cision colective, eh bien Г  c'momentlГ  on le fera. elle sent alors des bras qui tirent ses jambes, qui Г©cartent ses jambes. La piГЁce principale ou sont les hors d'uvres, les bouteilles d'eau, la famille et les gardes du corps devient sombre. Zara et Etam proposent de vГ©ritables collections, directement inspirГ©es des derniers dГ©filГ©s.  яю<> Cette montre Umbro est livrГ©e avec un sac Г  chaussures pour mettre ces chaussures boueuses Г  l'intГ©rieur aprГЁs avoir jouГ©, et une superbe montre pour tout fan d'Umbro. Elle portait de jolies sandales de cuir Г  laniГЁres qui laissaient parfaitement visibles ses pieds.  
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==Basic Use==
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Ils sont composГ©s de 250 casiers nominatifs (100 pour les femmes, 150 pour les hommes) ainsi que d soixantaine de safety boxes. Le PrГ©sident Nicolas Sarkozy a eu l'honnГЄtetГ© politique d'affirmer: "Le Hamas est responsable de cette situation", il reconnaГ®t donc la faillite Г©vidente d'avoir aidГ© le Hamas Г  se constituГ© une armГ©e de choc en lieu et place d'un dГ©veloppement durable de Gaza. яю<> ).  
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яюh
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; {{Keys|F3}}, or {{Keys|C-x (}}
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Elle s'appelle Odile, lui Benjamin. Paroles et traduction de "Boomerangs Seesaws"Whatcha doin' here at this late hour ?Que faistu ici Г  cette heure tardive ?I've put to bed the dreams I'd saved as oursJ'ai mis au lit tous les rГЄves que j'avais gardГ©s comme les nГґtresAnd I've been sleeping with the porch light off for a whileEt j'ai dormi avec la lumiГЁre du porche Г©teinte pendant un momentWell, don't be standing out there, it's freezing coldBon, ne reste pas lГ , il fait un froid glacial But watch your step as you cross this thresholdMais regarde ton pas alors que tu franchis ce seuil'Cause I recall last April had you sold on goodbyeParce que je me rappelle qu'Avril dernier t'avait vendu un au revoir en Bourse, l'action PPR se traite plus de 115 euros et plus de quinze fois ses b n fices.  яю<> La combinaison 20/9/11/4/15/6/17/10 a tout de mГЄme fiГЁre allure. Le quai est en souterrain et la visibilitГ© y est assez mauvaise. Il faut revenir l'essentiel, virer ces d encombrantes".
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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 04:52, 19 May 2015

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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