Difference between revisions of "Keyboard macros"

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Det var da jeg sto i bakken full av Jägermeister og tenkte pÃ¥ tøy at jeg kom pÃ¥ at i tillegg til alt det jeg har nevnt sÃ¥ har jeg elsket Patti Smith i alle disse Ã¥rene fordi hun har budt meg en annen mÃ¥te Ã¥ være kvinne pÃ¥, en mÃ¥te der kjønn ikke ligger tjukt utenpÃ¥ til enhver tid. I ryggen har du høyere topper, men BlÃ¥manen og ikke minst Rundemanen gjelder som kjent som egne fjell. Oldemoren, en dansk stumfil  mstjerne, mistet sin mann i Nordisen da hun var gravid.
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{{Manual|emacs|Basic-Keyboard-Macro|Basic Keyboard Macro}}
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- Da jeg var 11 Ã¥r, ville jeg begynne Ã¥ spille piano. Northug kapret dermed 14 nye  canada goose expedition parka scuppoeng pÃ¥ sveitsiske Dario Cologna, som endte pÃ¥ 12.  Etter to døgn tilkoblet intravenøs antibiotikabehandling og med høy feber fikk hun nok av korridorlivet.
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LES OGSÃ…: Orkla varsler økte matpriserOrkla gjentar samtidig at selskapet legger til grunn en moderat markedsvekst for aluminiumvirksomheten Sapa Profiles i 2011, og sier samtidig at markedet og etterspørselen for Heat Transfer har vært god i starten av 2011. Til slutt slipper ogsÃ¥ arrangørene til orde, men de fÃ¥r, etter min  mulberry vesker , liten anledning til Ã¥ gjøre skikkelig rede for sitt arbeid med sikkerhet. Her er tallene som varsler norsk medaljet- Friidrettsniv i  nike free run 3.0  er knallh i alle Det er ingen lett jobb f gode resultater her, sier sportssjef Ronny Nilsen til VG Nett p plass i Daegu, s i S dagen f VM-starten.
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'''Keyboard macros''' can be used to automate or repeat tedious editing tasks in Emacs.
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De oppnÃ¥dde et driftsresultat før nedskrivninger pÃ¥ minus 184 millioner kroner, og driftsinntektene stupte med 867 millioner kroner. Uansett om man innrømmer det eller ikke.  Truslene vokser i antall og kompleksitet, samtidig som vi blir mer avhengig av cyberspace og dermed mer sÃ¥rbare for angrep.
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Steine opplyser at på generell basis sier verdipapirhandelloven at informasjon som ikke er offentlig kjent, og som kan være egnet til å påvirke kursen, skal offentliggjøres bredt, herunder børsmelding. Omkring 200 tilhørere i Hulen denne kvelden lot seg absolutt høre, og responsen var i høyeste grad mer enn godkjent. Klifs forslag faller ikke i smak hos Oljeindustriens Landsforening (OLF).
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==Basic Use==
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; {{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:
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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]]

Revision as of 12:38, 18 June 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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