Difference between revisions of "Keyboard macros"

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Si vous d de partir avec une agence sp n pas opter pour une formule randolibert qui allie la tranquillit d d randonn organis l d groupe sur mesure sans accompagnateur.  ÿþ<> Comme tous les vendredis soir, c'est lors d'une nocturne que notre évènement préféré sera disputé. Du haut niveau les 1D addicts !. 
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
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Elle veut que je fasse des chansons aussi dingues que possibles. Et Racamond, salué par un triple cri de  Rot Front 1  poussé par le congrès, conclut par un appel à l'action commune des prolétaires de France et d'Allemagne contre tes traités de 1919. ÿþ<> Il porte bien son nom : il fait nuit, froid et nous cherchons seulement une auberge pour passer la nuit, attendre.
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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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<>]. Très bonne route. Nous nous sommes ensuite dirig vers le sanctuaire Tsurugaoka Hachimangu. Tu vois la camionnette blanche avec la bande verte? C la police des m les Bassijis. ÿþ<> L est divis en trois pi l une pi avec une lucarne et une pi ronde. Ses sousvêtements décalés se situent plutôt sur un segment haut de gamme avec des prix variant entre 60 et 80 euros.  
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==Basic Use==
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Vous y serez par les assistants. Le jour arrivant, nous décidons de le placer en deuxième position car c'est un cheval un peu fantasque qui peut faire la faute à tout moment du parcours. ÿþ<> <>] N en 1928 Abbazia (Italie), Frank Horvat, graphiste avant d' tre photographe pour Paris Match, Life et foule de magazines, bouleverse all grement la perspective et rassemble toutes les r f rences capitales pour cette campagne Stern en 1974.  
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ÿþh
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; {{Keys|F3}}, or {{Keys|C-x (}}
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C'est vrai que le plus gros qu'on a fait c'était 6 contres deux lol. Virtua Tennis 3 sauratil conserver toutes les qualités qui ont fait le succès de la série ? Une présentation de nouvelle génération s'approchant toujours un peu plus du photoréalisme, avec des animations très détaillées et de nombreuses expressions faciales. En conduite talon / pointe, c'est tout de même plus stable qu'avec les autres.  ÿþ<> Le fils de Ga Fatma ne saurait indiff au pouvoir, lui qui descend de la famille r du Cayor, un royaume qui a rayonn au XIXe si au coeur du S Sa grandm paternelle, Fatma Thioubou, est la fille d Khour fr de Lat Dior Diop, roi du Cayor, r la p coloniale et h national du S <>] C'est pas que j'aime pas me faire plaisir. Malgré tout, elle donne toujours le meilleur d'ellemême en compétition, et, de nouveau sans chaussures, elle peut permettre à Aymeric Thomas de confirmer sa première place dans plusieurs classements.
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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:
 +
 
 +
<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 ==
 +
 
 +
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 15:34, 28 August 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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