Linked Questions

38 votes
2 answers
9k views

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, ...
user avatar
  • 31.1k
17 votes
2 answers
2k views

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 ...
user avatar
  • 273
16 votes
1 answer
2k views

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,...
14 votes
1 answer
5k views

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....
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  • 3,799
10 votes
1 answer
2k views

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:...
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  • 4,793
8 votes
1 answer
7k views

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 ...
user avatar
  • 554
6 votes
2 answers
205 views

How to move point to new window, within a function?

I'm trying to write a simple function to divide the Emacs frame into four quadrants. Once I get the splitting to work, each window will have Dired for a different directory. The splitting isn't ...
user avatar
  • 163
6 votes
2 answers
575 views

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 ...
user avatar
  • 383
4 votes
2 answers
552 views

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 ...
user avatar
  • 307
4 votes
1 answer
2k views

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
user avatar
  • 389
3 votes
0 answers
1k views

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 ...
user avatar
  • 3,735
2 votes
1 answer
220 views

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?
user avatar
  • 903
2 votes
1 answer
184 views

Moving CLOCK entries from one header to another?

Suppose we have two entries: Header One and Header Two: * Header One :PROPERTIES: :ID_LOG: TARGET :END: :LOGBOOK: CLOCK: [2018-07-04 Wed 00:00]--[2018-07-04 Wed 0:30] => 0:30 :END: * Header Two :...
user avatar
  • 807
1 vote
2 answers
78 views

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>, <...
user avatar
  • 203
1 vote
2 answers
316 views

What does the (interactive ...) form mean?

I want to write a function that will write the output of wc -l <file-name> next to each file in dired mode. I got to this point: (defun my-dired-insert-add-wc (beg end) (save-excursion (...
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