Questions tagged [interactive]
`interactive` spec of an Emacs-Lisp command (function invocable using `M-x` or a key binding)
12
votes
1answer
554 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,...
1
vote
0answers
85 views
How do I define a function in my init.el and make it available with M-x? [duplicate]
I have the following function, which does what it says on the tin -- swaps the values of the ns-alternate-modifier and ns-right-alternate-modifier variables.
(defun swap-left-and-right-alt ()
"Swap ...
-1
votes
1answer
32 views
how to get region start and region end from the whole buffer as variables to call another func
(defun buffer-to-shell()
(let (buffer mark-whole-buffer)))
(shell-command-on-region start end "sed s/foo/bar/") ;; start, end not defined
)
As you might see there are undefined variables start ...
3
votes
1answer
44 views
how to provide a parameter for interactive lamda function
I want to be able to perform helm-swoop on an input error: on a compiler output buffer using C-x C-r, here is how I tried to achieve it.
(global-set-key (kbd "C-x C-r") (lambda () (interactive) (...
0
votes
2answers
19 views
bind an insertion to a mouse click [duplicate]
I need to change a space to a | here and there and i guessed that the best possibility were to bind a mouse click and the insertion of the pipe
(global-set-key [s-mouse-1] '(insert "|"))
But when I ...
2
votes
2answers
34 views
Arbitrary length lists as argument for interactive function
Say I have a defun with a dolist inside that I want to be able to pass a string that is then converted to a list with a length equal to the number of words in said string via the minibuffer, so ...
0
votes
1answer
45 views
Adding advice to interactive functions
I want to add advice to `describe-function'. However, when I try to do so, I get an error due to wrong number of arguments. Function:
(defun describe-function-advice (function) ...
2
votes
1answer
48 views
How can I set the default value for reading a directory name?
I have a folder hardcoded in variable:
(defvar folder-start-mine "/path/to/start/folder/")
Then I want to interactively define new non-existing subfolder name:
(defun my-new-defun (sel-subdir)
...
4
votes
1answer
388 views
Insert character by its Unicode name
From the documentation of insert-char, I cannot see why
(insert-char "GREEK SMALL LETTER EPSILON")
doesn't work. Is there a non-interactive way to insert a character
given its Unicode name?
7
votes
3answers
115 views
Near-identical commands on multiple keys
Visual Studio has this nice feature where you can put the point on something, press C-f3 and it'll both find the next instance of the thing under the point and it'll remember it. You can then press ...
1
vote
0answers
35 views
What methods are available for complex user input?
I am experimenting with writing a plugin which requires quite a bit of user input, its a front end to an api.
A typical request will have 4 required inputs and many optional inputs, obviously I can ...
0
votes
1answer
20 views
How to mapping from the value of one alist entry to the value of another entry of the same alist
I have a data structure like:
((fid . FID) (name . NAME) (count . COUNT) (data . ORIGINAL_DATA))
I have following Elisp code try to interactively select FID through display
the NAME instead of FID.
(...
0
votes
1answer
52 views
setting font-height interactively
I thought it would be handy to be able to change the font height of a buffer on the fly by invoking a key press and giving the font height you would want, e.g.
C-t 130 would set the local buffer font ...
1
vote
1answer
78 views
Interactive: region beginning/end as markers
When I need a function to operate on a region I do, for example:
(defun myfunction (B E)
(interactive "r")
(let ((b (make-marker))
(e (make-marker)))
(set-marker b B)
(set-marker e E)
...
2
votes
0answers
275 views
Run interactive shell script in new buffer using elisp
I am looking for a way to display and interact with long running shell scripts in a separate buffer. While using eshell works, I'd like to automate most shell tasks using elisp.
The best way I came ...
2
votes
1answer
98 views
Can an emacs command tell if it was called via key binding or via M-x command-name?
Is there a way to program some Emacs command in elisp that could tell whether it is called interactively through some key binding or by typing its full name after M-x? I thought this could be done ...
3
votes
3answers
212 views
Display path and filename in a minibuffer
Eval this code:
(defun xx-display-filename (filename)
""
(interactive "Ffilename: ")
(message (concat "Filename is: " filename)))
Let's assume that I am editing a ~/.emacs.d/personal/custom.el ...
2
votes
0answers
142 views
Interactive lambda functions
How do I create interactive lambda functions?
(use-package general
:ensure t
:config
(general-evil-setup t)
;;(setq general-default-keymaps 'evil-normal-state-map)
(general-define-key
:...
1
vote
2answers
37 views
Always use default as input to describe-symbol function
I want to map describe-symbol to shortcut, but I constantly have to press additional enter for show describe on found default suggestion. Is there a way to force emacs to newer ask for confirmation ...
1
vote
1answer
57 views
deactivate active region after `eval-region`
I do the following to activate the region and evaluate it
M-x spc to begin mark
C-n
C-n
C-n
M-x eval-region
The region is still active (highlighted) after the eval-region is performed.
I would ...
2
votes
0answers
32 views
Record Emacs interactive function invocations
I want to optimize my keybindings, in a way that the more a command invoked interactively, the more accessible will be a key-binding for it.
Is there a way to record all interactive function ...
2
votes
1answer
374 views
call interactive function from elisp code without worrying about arguments
So, I want to do (ispell-change-dictionary) inside a function I'm writing, but doing a test throws this error:
(wrong-number-of-arguments #[(dict &optional arg)
I was told that M-x calls the ...
2
votes
2answers
351 views
How to write a function with an interactive choice of the value of the argument?
How to write a function in Emacs Lisp that interactively would give the opportunity to choose one of the options?
Choose your animal: Cow Rabbit Dog
You have to press 1 to select Cow, 2 to select ...
1
vote
1answer
234 views
Read input char without pressing RET
I want to perform the same task as in the function below, but without having to press ENTER every time I select an option.
(defun my-fun ()
(interactive)
(setq something (read-string "Options:\n [...
0
votes
0answers
102 views
Binding F12 to reload init.el with a lambda function
I'm trying to map F12 to reload my init.el from whatever buffer I might be in but can't get it to work. I have tried the following in my config and am really not sure why it's not working:
(global-...
0
votes
1answer
48 views
How to prompt user for register name?
I'd like to prompt the user for a register name. Is there an easy way to do this? Apparently, this functionality isn't built into interactive (https://www.gnu.org/software/emacs/manual/html_node/elisp/...
1
vote
1answer
282 views
“Invalid use of '\' in replacement text” with non-interactive calls
It seems that replace-regexp has a different behavior if called interactively and not, but I do not understand why, and how to get the wanted behavior.
What I want is the non-interactive equivalent ...
1
vote
3answers
32 views
How to know if user input a string or a number using interactive
I want to check if a user input a word or a number. And I write the function look like this:
(defun check-input (arg)
"description"
(interactive "senter arg: ")
(setq isnum (string-match "\\'[0-...
1
vote
1answer
54 views
Detect interactive use of `kill-buffer` in `kill-buffer-hook`
As per title, I want to define a kill buffer hook with the variable kill-buffer-hook and the function should be able to detect when (kill-buffer ) has been called interactively.
Is this possible?
...
1
vote
1answer
61 views
Reuse other command's “interactive” form
Example, I want to define a package-open-homepage command, which reuses C-h P (describe-package)'s "interactive" form. I don't want to copy-and-paste because it is too long. The following
(eval
`(...
3
votes
2answers
142 views
Custom C-arrow cursor movement
I was not satisfied with the behavior of standard C-arrow and C-S-arrow, so I wrote this functions to replace standard ones.
(setq separators-regexp "[\-'\"();:,.\\/?!@#%&*+=]")
(defun forward-...
1
vote
2answers
491 views
How to reuse last input in command with a prompt?
Some existing functions have ability to remember last input, which you can use in the next command call - for example, replace-string will suggest the last replacement by default, while isearch will ...
0
votes
0answers
22 views
Call avy-go-to-char before a command if there's no mark active [duplicate]
There are some commands which I only call when I've got a region selected because I only want these commands to operate on the region. Like for example, say, mc-edit-beginning-of-lines.
For example ...
6
votes
2answers
165 views
How to repeat a command immediately after calling it?
I've just called an interactive function (i.e., a command). I want to call it again, with the same arguments. I know that I can call a keyboard macro again by using e right after running it the ...
2
votes
1answer
193 views
Helm find-file foreground face for interactive current directory in minibuffer
I'm using Spacemacs with
$ emacs --version
> GNU Emacs 24.5.1
On OSX 10.10.5
Using C-x C-f to find files shows a minibuffer like:
I have been able to get rid of the ugly green foreground ...
3
votes
1answer
191 views
how to find non-interactive function equivalents of elisp interactive functions
In the description of the function goto-line in the built-in emacs documentation, I found the following at the end:
This function is usually the wrong thing to use in a Lisp program.
What you ...
0
votes
1answer
26 views
eval-last-sexp produces unnecessary void-variable error when using a macro containing eval
Suppose I have defined the following macro:
(defmacro mymacro (a) "" (eval a))
If I then use eval-last-sexp (i.e. C-x C-e) to evaluate the following,
(defun somefcn (b) "" (mymacro b))
I get the ...
4
votes
1answer
904 views
How to apply `call-interactively` to an interactive command that accepts the universal argument?
I've read the documentation on how to make interactive calls from within Elisp, but I still can't figure out how to pass the universal argument when using call-interactively on a command that ...
1
vote
1answer
146 views
Compile from parent directory in Emacs
I'm trying to map F5 to compile from a parent directory of the current buffer.
Emacs compile-command find makefile in superior directory
provides an excellent answer to achieve this:
(defun compile-...
3
votes
2answers
39 views
Take path preceding cursor and run a shell command on it
Consider a buffer holding the following contents:
foo
...
some text /foo/bar/hello.csv𝙸
...
bar
where 𝙸 represents the location of cursor.
I would like to have an interactive function that ...
9
votes
1answer
770 views
Is it possible to read user input from STDIN while tangling a source block?
Is it possible to read user input from STDIN while tangling a source block with org-babel-tangle?
I am aware of this: Org Mode Babel - Interactive code block evaluation.
That doesn't help solve this ...
2
votes
1answer
165 views
how to parameterize prompt for interactive/command?
background
I had elisp code (in this very small git repo) like
(defun bulk-replace-file (filepath)
(interactive "FPath to file to bulk-replace: ")
(bulk-replace-file-non-interactive filepath)
)
...
0
votes
4answers
225 views
elisp pattern for handling region || buffer || file
summary
Elisp newbie has been given interactive code (aka commands, called with M-x whatever) that "does stuff" on the currently-selected region in the current buffer. What is an/the "elispish way" ...
4
votes
2answers
185 views
Elisp code execution order?
I cannot understand the behavior of this simple code:
(defun foo (str bool)
(interactive
(list (read-string "Some text: ")
(y-or-n-p "Yes or no? ")))
(message "%s is first" str)
(...
5
votes
1answer
387 views
Why does multiple cursors use the same char for all cursors with zap-to-char but not with zap-up-to-char?
This a follow up to my earlier question Why does multiple-cursors use the same char for all cursors with iy-go-to-char, but not with zap-up-to-char?.
As I describe in that question, for some commands ...
4
votes
1answer
98 views
How can I make an interactive function be local to directories?
I want to make it so that I have interactive functions that can only be called from buffers in a certain directory, like variables in .dir-locals.el. Is there a way to do this?
For example, say I'm ...
1
vote
1answer
27 views
Defining a function that takes as an input the current buffer's path
I am hoping to define an interactive function that I can invoke with M-x <function-name> and that will:
Automatically grab the path to the file
Run the following code on it:
(require 'tramp)
...
3
votes
2answers
177 views
How to initiate a prompt for user input based on the prefix argument?
The below dummy foo describes how I need the prefix variable setting to work.
I'd like the read-number prompt to show up only if the user entered C-u as prefix. In all other cases, the prefix will be ...
1
vote
1answer
338 views
How to programmatically invoke interactive function? [duplicate]
I have written an interactive function to connect to multiple mysql databases
(defun mysql-connect (name)
"Connect to a predefined MySQL connection."
(interactive
(list
(completing-read "...
4
votes
2answers
297 views
Default base directory in rgrep
Whenever I'm using M-x rgrep to search inside my project arborescence, the interactive prompts suggest the following default arguments for the function:
Search for (default: <current word>) (OK,...
