Difference between revisions of "Keyboard macros"

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Témoins de cet engouement pour la marche, les fabricants de matériel enregistrent des hausses spectaculaires de leurs ventes: 18% pour Lafuma, 17% pour Aigle, les deux leaders de l'équipement de loisirs nature.  ÿþ<> Ce gant est basée sur centrée sur le production approche , la sélection de laine de cent%, avec un 3  coloration modèle . Sauf ça. 
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
  
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Avec un petit faible pour l'alfalfa, l'ail et le radis pourpre, que l'on peut dévorer tout crus, en salade, caviar, crackers Les sportifs feraient bien de troquer l'EPO pour ce petit bijou de la nature. Durant les six derniers jours, ils va falloir que le joue avec les sandales (bonnes pour les orteils mais mauvaises pour la plante) et les Salomon (bonnes pour la plante et mauvaises pour les orteils). ÿþ<> Personne n'est obligé de savoir que vous l'avez acheté dans une friperie.. 
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'''Keyboard macros''' can be used to automate or repeat tedious editing tasks in Emacs.
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Many people do this all a joke coach sale people do not criticize those of other elderly people to waste so much time has really not expected to do business. Un croisement détonant comme une vodka par  32 C.. Tout est bon pour se faire plaisir. BIo express.  ÿþ<> All guests staying in hotel guestrooms must be registered with the hotel. Afterward the master also had bid goodbye with the boyfriend, the reason vibram is unknown naturally, but after the vibram returns to the brocade box side, the brocade box tells the vibram: One have been Vibram Button Men Shoes Sale loving the vibram deeply, was only the vibram too had been at that time attractive, the brocade box thought from could not be joined to the vibram, has Vibram Necklace vindicated embarrassed.  
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==Basic Use==
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Troisième impression : j j un peu peur de marcher sur les chemins caillouteux avec les pierres affleurantes surtout que la semelle est d incroyable finesse. Il est certain que pour commencer à emprunter quelques méthodes de fonctionnement à ce pays, oeuvrer pour mettre en place un dialogue social efficace est plus pertinent que laisser un syndicat qui est "contre tout ce qui est pour et pour tout ce qui est contre", enfermé dans son dogmatisme depuis des dizaines d'années, se perdre dans une logique d'affrontem..  ÿþ<> They're perfect, however, for light trail hiking or even light trail running.  
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; {{Keys|F3}}, or {{Keys|C-x (}}
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Vos frais de compte bancaire étonnante de marché jusqu'à semblent aurait dû en ce qui concerne formelle de votre avoir sur. Il faut jouer avec le terrain, pour ne pas s jusqu genoux, c une tuerie toute cette puff. Les ventes de tentes, sacs de couchage, réchauds, gamelles et autres ustensiles spécialisés ont augmenté de 20 % par an depuis 1988, ce qui a représenté environ 4 milliards de francs de chiffre d'affaires en 1993.  ÿþ<> Un vautour fauve sort de la brume, à une vingtaine de mètres audessus de notre tête et vient se poser à flanc de falaise, juste devant le barrage qui vrombit. Bottes UGG qui ont été décrits sont quelquesuns des plus populaires de la société. Après 68, on a commencé à considérer la marche non plus comme une activité hygiénique mais comme un plaisir, une jouissance de tous les sens." Dans le sillon d'un Jacques Lacarrière ou d'un Jacques Lanzmann, Paccalet accomplit à travers la marche une oeuvre littéraire, esthétique et sensuelle.
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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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==Saving macros==
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{{Manual|emacs|Save-Keyboard-Macro|Save Keyboard Macro}}
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===Binding to a key===
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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

Revision as of 22:13, 23 March 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.

Saving macros

Save Keyboard Macro (`(info "(emacs) Save Keyboard Macro")')

Binding to a key

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

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