Linked Questions
20 questions linked to/from What is the difference between a function and a command?
3
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Bind a key to a lambda: what am I doing wrong? [duplicate]
I'm reading about some concepts of Emacs Lisp. The lambda's seems interesting to me. After reading the manuals about lambda's in Emacs Lisp, I decided to play with it.
For example, I have this ...
- 3,715
2
votes
1
answer
216
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buffer-file-name is a function, so why doesn't M-x buffer-file-name work? [duplicate]
When trying to run it I get
M-x buffer-file-name [No match]
But it has a function help entry via C-h f and I can evaluate it with M-: buffer-file-name. So why isn't it accessible via M-x?
- 903
1
vote
2
answers
76
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Are commands not equivalent to functions in Emacs? [duplicate]
The documentation for M-x says:
M-x runs the command execute-extended-command (found in global-map),
which is an interactive compiled Lisp function in ‘simple.el’.
It is bound to <execute>, <...
- 181
0
votes
2
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How do I define a function to execute as a command with M-x? [duplicate]
I wish to M-x my-func and let my code run. This seems basic but where can I get more documentation about this, if possible inside emacs itself?
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0
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1
answer
184
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Why can't I bind tab to multiple spaces? [duplicate]
I'm trying to bind tab to either a tab or multiple spaces in Latex/ESS-noweb mode but I can't get it to work. I tried (local-set-key (kbd "<tab>") 'self-insert-command) which didn't work, and ...
user17376
1
vote
1
answer
31
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What makes an elisp function available with M-x [duplicate]
Why some functions in simple.el are invokable with M-x and some others aren't?
For example I can do M-x what-line but I can't do M-x line-number-at-pos.
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38
votes
2
answers
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What's the difference between a buffer, a file, a window, and a frame?
When posing questions on this site, people sometimes talk about "windows" when they mean "frames," and "buffers" or "files" when they mean "windows." So:
Q: What is the difference between a buffer, ...
Dan♦
- 31k
17
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2
answers
2k
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How can I prevent a command from using specific windows?
Typically, I have a frame split into four windows, where two at the bottom are dedicated to my *compilation* and *grep* buffers. When browsing compilation errors, next-error will eventually replace my ...
- 273
16
votes
1
answer
2k
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Why can't I bind my function to a key or call it with M-x?
I wrote a function, and I want to call it via M-x, and bind it to a key. This is my function:
(defun my-function ()
(message "This is a great function"))
If I try to call it with M-x my-function,...
8
votes
1
answer
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Wrong number of arguments on lambda key binding
I am not able to figure out what is wrong in this elisp form:
(define-key ggtags-mode-map (kbd "M-.")
(lambda ()
(interactive)
(ggtags-find-tag-dwim)
(recenter)))
I keep getting this ...
- 554
13
votes
1
answer
5k
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Evil cursor change by state
Until today, when I was in the normal state in evil, the cursor was a block, and it would switch to an I-beam when in insert state. Something changed, however, and the cursor is now always the I-beam....
- 3,759
10
votes
1
answer
2k
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How to right align region and/or line?
We can center text with M-x center-region and M-o M-s. Is there something similar for right-alignment?
Example before:
Item 0: value |
Item 100:...
- 4,763
4
votes
2
answers
547
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Bind `C-x 8 l` to typing lambda (λ)
When I try to do this:
(global-set-key (kbd "C-x 8 l") (lambda () (insert "λ")))
It just doesn't work:
Wrong type argument: commandp (lambda nil (insert "λ"))
Does anyone know a decent way to do ...
- 307
4
votes
1
answer
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What is the difference between reftex-citation and org-reftex-citation?
What is the difference between reftex-citation and org-reftex-citation?
And where can I find the documentation for org-reftex-citation referenced in this answer?
[1] Emacs manual: Creating citations
- 389
6
votes
2
answers
561
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Searching all installed mode maps for a specific key binding
When deciding on which key binding I want for a specific command, it would be very nice to know if any of my installed mode maps (global, major and minor) have already used this key binding for some ...
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