Difference between revisions of "Keyboard macros"

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Si vous courez sur place vous ne pouvez pas vous tromper.  ÿþ<> Afin de réduire encore les délais entre la conception et la fabrication, la marque est en train de construire en Chine, où sont implantés la plupart de ses clients, un centre technique de 15.000 mètres carrés qui accueillera fin 2008 son pôle de recherche mondial adossé à un incubateur pour couver les ambitions des ingénieurs chinois. Il s'agit d'un butin d'une hauteur supérieure de cuir pleine fleur qui est étanche et peut fournir un soutien aux intempéries pendant l'année. 
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
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<>] Je ne pense pas qu'elles doivent être jugées trop sévèrement pour ce qu'elles ont fait. Mais qu'estce qui les fait tous marcher?. ÿþ<> Pour preuve, cette gestuelle simplissime.
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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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les températures tournent autour des 10C en moyenne et le vent peut etre très froid et fort également. On a hike, the soles are rugged enough for slippery conditions, and the body can handle a little moisture. Certes, l'humanité tribale n'avait pas attendu l'ouverture de ces temples modernes pour célébrer la nuit, lui accorder un pouvoir magique ou créateur de lien social. A gauche, l'avant d'une semelle  classique  celle de mes Saucony en l'occurence.  ÿþ<> lower back with all your vibram five fingers sale pointed downward.. Timberland boots Roll In 1973 the brand was the first pair Timberland boots rain, history Timberland was born and laid the foundation stone.  
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==Basic Use==
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Bref, on tire jusqu'à Pont de Camps pour poser le camtar et enchainer sur une grosse nuitée réparatrice. Un cairn (petit tas de cailloux faisant office de balise sur les sentiers de randonnée) témoigne d'une précédente ascension. ÿþ<> Who is male or female, people were not for the number of pairs of shoes suited them.  
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ÿþh
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; {{Keys|F3}}, or {{Keys|C-x (}}
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The added articulation around the five finger shoes strengthens your metatarsal ligaments and muscles, may be noticeable normally balance and, oddly sufficient, upper body pressing strength.. Malgré ses rondeurs bosselées pharmacie de campagne, boîte verte de l'Aspivenin, tube poisseux de crème solaire, Opinel rouillé  le sac à dos s'improvise appuitête. Pendant les mois chauds, la même paire de chaussures, lorsqu'il est porté conjointement avec les denims et minijupes, rend un charme as well as chaud en plus stylistique.  ÿþ<> C'est aussi l'occasion pour notre pays d'avoir la matière grise la plus diverse possible pour assurer l'avenir. Il a fait assez lourd l'aprèsmidi. La première est le soulier de tennis Lacoste, fidèle réédition d'un modèle unique créé en 1963 par et pour René Lacoste.
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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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