Difference between revisions of "Keyboard macros"

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Elle s'est aperçue de ce que je faisais et ça m'a gêné.  ÿþ<> Dans la majorité des cas, les choses sont passagères ou peuvent évoluer. et maintenant, j'ai un mal de chien, cela me lance dans l'orteil et je n'arrive pas à me chausser. 
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
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Vous avez le choix entre les Saintes, Petite Terre et Marie Galante. J'aurais bien parlé avec cette jeune et jolie fille après, mais les flics m'ont embarqué pour identifier les personnes. ÿþ<> <>] La ligne de s paration entre le sport et la mode n'est pas tr s claire. 
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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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Certes, les bonnes tentatives sont toujours présentes puisqu'il s'est déjà imposé à deux reprises pour seulement six tentatives, mais, il n'a plus sa légendaire régularité puisqu'il compte également deux disqualifications, une quatrième et une sixième place. Ni mes chaussettes. Apr les temples, on d un magnifique jardin zen qui a pour particularit de ne pas sec (rocailleux) mais plant C'est un jardin de contemplation. Soins aux enfants démunies et ceux de la prison pour mineur à Lomé.  ÿþ<> La moto redémarre et passe à côté d'elle lorsqu'elle reçoit la première rafale. En plus certaines personnes de mon entourage ne m'aide pas forcent.  
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==Basic Use==
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Tous ces points convergent vers un même objectif : en proposant au consommateur de venir chercher un colis, de sortir son smartphone ou de taper sur un écran, on peut l'identifier  ce qui est impossible aujourd'hui. La tentation de l'accumulation est grande : emport par la multitude d'informations, de sons, d'images, d'offres, il est difficile de r Opter pour l'asc pond mesurer, ranger. ÿþ<> De toute façon, hormis sa récente troisième place à Amiens où il était encore parti au galop avec son entraineur, Sébastien Guarato, au sulky, il alterne les premières places mais surtout les disqualifications.  
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ÿþh
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; {{Keys|F3}}, or {{Keys|C-x (}}
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Le Raïs s'est contenté d'annoncer un transfert de pouvoir à son viceprésident Omar Souleiman, au lieu de la démission que réclament ses opposants. Les pr de super chaussures en descente technique, se justifie pleinement en montagne. Pas plus de cinq minutes par groupe.  ÿþ<> Cela demande des investissements en temps et en argent , commente JeanLuc Espla, en charge de la lutte contre la contrefaçon au sein d'EPI, le holding de la famille Descours, propriétaire de Weston. L'hiver dernier, du côté de Dubaï, pour le grand Mike de Cock, il transformait tout ce qu'il touchait en or comme pouvait le faire le Roi Midas. Il chantera ensuite d'autre tubes : "Himalaya" (Top 1 en 1972), "Manhattan" (Top 6 en 1973), "La petite fille 73" (Top 20 en 1973), "C'est moi" (Top 1 en 1974), et conna tra m me une seconde jeunesse dans les ann es 80 gr ce "Et tu danses avec lui" en 1985 ( crit par Didier Barbelivien) qui restera plus de six mois dans le Top 50, suivi de "Derniers baisers", en 1986.
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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]]

Latest revision as of 15:27, 4 July 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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