Difference between revisions of "Keyboard macros"

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m (Protected "Keyboard macros": too many vandalism on keyboard macros. ([Edit=Allow only autoconfirmed users] (expires 09:46, 3 April 2015 (UTC)) [Move=Allow only autoconfirmed users] (expires 09:46, 3 April 2015 (UTC))))
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Tema: Om Ã¥ være muslim i Tatarstan. Alle kreasjonene er intrikat innfarget fra bunnen av for hÃ¥nd med naturens fargespill som inspirasjon. Krigskostnader samt tiltak for Ã¥ fÃ¥ kontroll pÃ¥ den  nike sko  krisen i landet har ført til at utgiftene pÃ¥ det amerikanske statsbudsjettet har mer enn doblet seg det siste tiÃ¥ret.
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
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Hodgson, som ble nektet  adgang i VIP-boksen da han besøkte Anfield i helga, mÃ¥ greie seg uten bÃ¥de nevnte Rooney i tillegg til Daniel Sturridge, som allerede har meldt forfall. Og han har vært i flere land og snakket om begrepet. Midt i den  nike free  minuttene virret jeg rundt pÃ¥ den folketomme OL-arenaen utenfor Athen for Ã¥ finne ut hvor den norske OL-vinneren eventuelt ville komme til lands.
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Ingen har opphavsrett pGuillou har selv erfaring med Ã¥ skrive romaner som trekker veksler pÃ¥ fakta og  mulberry vesker e hendelser, bÃ¥de i «Arn»-serien og «Hamilton»-bøkene. Franzen ville ganske sikkert nikket gjenkjennende. Totalt for Ã¥ret økte driftsinntektene med 8 prosent, mens drifts mulberry oslo  økte med 16 prosent.
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'''Keyboard macros''' can be used to automate or repeat tedious editing tasks in Emacs.
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I starten skal du for eksempel alltid velge mellom forskjellige klasser, et valg du ikke kan gÃ¥ tilbake pÃ¥, og mÃ¥let er alltid Ã¥ nÃ¥ stadig nye nivÃ¥er med figuren. Leien for rommet er  ikke billig - ifølge Hauge rundt en halv million kroner. Forbundsleder mener oljeselskapene ikke taper pForbundsleder Leif Sande hevder at oljeselskapene ikke vil tape timberland sko barn pÃ¥ streiken fordi verdiene fortsatt vil ligge i reservoarene, skriver Aftenbladet.
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Rettore mener samarbeidet med ledelsen har vært bra siden  ecco norge  startet i sommer. Innen tre sekunder mÃ¥ hun enten ha skutt mot canada goose expedition parka ns mÃ¥l ellersendt en pasning til sin medspiller som er i bevegelse mot nike free run ns mÃ¥l. Ny utsettelse om auksjonsvilkÃ¥rEn indisk regjeringsgruppe skulle etter planen ha bestemt prisen pÃ¥ et møte torsdag, men møtet ble utsatt pÃ¥ ubestemt tid.
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==Basic Use==
 +
 
 +
; {{Keys|F3}}, or {{Keys|C-x (}}
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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>
 +
;; 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>
 +
 
 +
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]].
 +
 
 +
 
 +
[[Category:Intermediate]]
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[[Category:Editing]]

Revision as of 09:46, 3 October 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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