My Gnu Emacs 24.4 on Win 8 can't seem to work with it's default prolog mode. I have the latest version of SWI Prolog.
When I load Gnu Emacs and type in Mx prolog-mode, the syntax gets highlighted. However, I am not able to compile the rules, or do anything with them. When I try to run prolog from inside Emacs using Cc RET, it says "Searching for program: no such file or directory, prolog".
The error message tells you that Emacs couldn't find any executable with name prolog in load-path. So presumably the problem is that you haven't put your installation of SWI-Prolog into your $PATH.
An alternative to setting $PATH in your environment (or load-path in your ~/.emacs) is to set prolog-program-name in your ~/.emacs.
You wouldn't happen to be taking cmsc330 would you? Anyway if your not wedded to Emacs, Eclipse has a plugin for SWI and it autofills as well. I would just use eclipse.
Related
I want to use "ediprolog" package on Emacs. I followed installation and usage instruction here https://www.metalevel.at/ediprolog/ and he says:
The two most important configuration options are:
ediprolog-system, either scryer (default) or swi
ediprolog-program, the path of the Prolog executable.
So I tried C-X , customize-group , ediprolog and checked the configuration file. The files looks like this:
To be honest I have no idea how, where can I edit to add the prolog executable path ~/.cargo/bin/scryer-prolog. In addition, Emacs says You can't edit this part of the Custom buffer when I tried to type something on the file.
And as I can expected, when I run ediprolog-dwim, "view-echo" says ediprolog-run-prolog: No prompt from: scryer-prolog, probably because I don't set the path on a configuration file.
I'm noob to Emacs and the package also, sorry about that, but I'm really struggling to achieve this step. Your comments must be really helpful for me. Thanks.
Try adding the path to the exec-path variable in emacs: when emacs forks off a subshell, this variable is added to the PATH that is passed to the subshell:
(add-to-list 'exec-path (expand-file-name (substitute-in-file-name "$HOME/.cargo/bin")))
It's probably very easy but I simply can't get a running scheme REPL in emacs.
First I installed MIT scheme and added
(setq scheme-program-name "my/path/to/bin/mit-scheme.exe")
to my init.el. But when I typed M-x run-scheme RET I got the error
Required feature ‘scheme’ was not provided
So I installed quack and added (require 'quack) to my init.el
Now when I start emacs I get the same error:Required feature ‘scheme’ was not provided
Am I missing a step?
Update
Maybe it simply doesn't work under windows:
Running Scheme under gnu-emacs If you want to run Scheme as an
inferior process in gnu-emacs or xemacs (again, this is not an option
on Windows machines), then you'll need to:
Download the xscheme.elc file. This is a byte-compiled elisp file that tells emacs how to run and interact with MIT Scheme. (Source file
is xscheme.el in case you're interested.)
This file should replace the xscheme.elc file that comes with emacs. You'll have to find the appropriate directory on your system.
On my Mandrake Linux system, this is the directory:
/usr/share/emacs/21.3/lisp. (This step is not necessary if you are
running MIT/GNU Scheme from the CS department machines.)
Add the following line to your ~/.emacs file
(load-library "xscheme")
Source (from 2005): http://www.cs.rpi.edu/academics/courses/fall05/ai/scheme/starting.html
Following doesn't work either
Quick Setup
Here is the short list of instruction's for those of you who want to
get started in a hurry. An explanation of each step follows below.
Open up emacs (or any other editor) in you home directory.
Open up the file ".emacs" and add the following line: (set-variable (quote scheme-program-name) "stk")
Save the file. You only need to do steps 1-3 once. If you were editing the file in Emacs, restart Emacs.
Start up Emacs and type the following sequence of keys:
M-x
run-scheme
A new buffer will open up with stk started inside of it.
Source: http://www-users.cs.umn.edu/~gini/1901-07s/emacs_scheme/
The error "required feature scheme was not provided" means that the first "scheme.el" found in your load-path does not contain a provide statement. Either your Emacs installation is broken (unlikely), or (more likely) you've installed some random scheme.el that hides the default one. Find it and remove it. Eg try M-x list-load-path-shadows.
I used to take the Programming languages course on Coursera and for the sake of the course i installed SML-Mode.
Now, I'd want to set up a Clojure environment in Emacs but instead of initializing Emacs from ~/.emacs.d, it initializes from the Users/karthik/Documents/sml-mode/sml-mode-startup
I deleted the sml-mode folder and on Emacs startup it shows me a warning about the files not being present. How I do point Emacs to load Emacs Live from the home folder.
I'm an Emacs newbie.
One easy way to do it, is
save you closure settings in /some/dir/my-closure-settings.el and call emacs as the following (to learn about -q -l , try emacs --help )
$ emacs -q -l /some/dir/my-closure-settings.el
or even placing an alias in bashrc,
$ alias closure-emacs='emacs -q -l /some/dir/my-closure-settings.el'
$ closure-emacs # will start emacs with your closure settings.
As you progress in learning some elisp, you will want to do it in one folder.
Assuming you installed Emacs yourself, and this SML-mode was an independent package, then I would speculated that it may have modified your site-start.el.
See if running emacs --no-site-file makes a difference.
If that's the issue, you can visit the file with:
M-: (find-library site-run-file) RET
You might also check:
C-hv user-emacs-directory RET
when running emacs in various ways:
emacs
emacs --no-site-file
emacs -q
emacs -Q
Unless it's a custom binary, at some point it should tell you "~/.emacs.d/"
Installing SML-mode does not change the place of the main initialization file, which is one of ~/.emacs or ~/.emacs.d/init.el. So look at those files (which ever of the two is present), and if none is present, then just create it and add what you need in it.
BTW, it looks like you're using an old sml-mode package (the newer one doesn't have an sml-mode-startup.el file). So please try and make sure the documentation that pointed you to that mode is updated: nowaday sml-mode should be installed from GNU ELPA, i.e. via M-x package-list or M-x package-install.
I'm running Emacs 22.3 in Windows. Earlier today I had gdb working within Emacs just fine. I was installing QT4 and during the installation it asked me to uninstall MSYS which I quickly clicked through not thinking about things. I think I had gdb installed with the MSYS package and Emacs was using that, but I'm not completely sure. Now when I run the following I get an error in the mini-buffer.
M-x gdb
"Searching for program: no such file or directory, gdb"
I tried to add the path "C:\cygwin\bin" to the Emacs load-path with this code but I still get the same error.
(message "Adding cygwin/bin to load path.")
(add-to-list 'load-path "c:/cygwin/bin")
Could someone tell me what I'm doing wrong?
Thanks.
probably adjust your system path to point it where you have gdb installed.
Try using /cygdrv/c/cygwin/bin
I have decided to check out Emacs, and I liked it very much. Now, I'm using the Emacs Starter Kit, which sort of provides better defaults and some nice customizations to default install of Emacs.
I have customized it a little, added some stuff like yasnippet, color-themes, unbound, and other stuff. I've set up a github repository where I keep all of the customizations so I can access them from multiple places or in case something goes bad and I lose my .emacs.d directory.
All of this is very nice, but there is a problem: Emacs takes about 1-2 seconds to load. AFAIK I can compile individual .el files with M-x byte-compile-file to .elc, and it works. But there are a lot of .el files, and I wonder if there is a way to compile them all with a simple command or something, to speed up the loading of Emacs. My Emacs is not always open, and I open and close it quite frequently, especially after I've set it up as a default editor for edit command in Total Commander to get used to it faster (yeah, windows xp here).
My Emacs version is 22.3. And yes, the default Emacs installation without any customizations fires up instantly.
I am not sure which version is preferred when loading, the .el or compiled .elc one by the way O.o
So, is there an elisp command or Emacs command line switch to make Emacs byte-compile everything in .emacs.d directory?
C-u 0 M-x byte-recompile-directory
will compile all the .el files in the directory and in all subdirectories below.
The C-u 0 part is to make it not ask about every .el file that does not have a .elc counterpart.
To automatically byte compile everything that needs byte compiling each time I start emacs, I put the following after my changes to load-path at the top of my .emacs file:
(byte-recompile-directory (expand-file-name "~/.emacs.d") 0)
Surprisingly, it doesn't add much to my startup time (unless something needs to be compiled).
To speed up my emacs, I first identified the slow parts using profile-dotemacs.el and then replaced them with autoloads.
You can use the --batch flag to recompile from the command line.
To recompile all, do
emacs --batch --eval '(byte-recompile-directory "~/.emacs.d")'
or to recompile a single file as from a Makefile,
emacs --batch --eval '(byte-compile-file "your-elisp-file.el")'
This is swaying a bit from the question, but to solve the problem of loading slowly you can use the new daemon feature in Emacs 23.
"If you have a lot of support packages,
emacs startup can be a bit slow.
However, emacs 23 brings emacs
--daemon, which enables you to start emacs in the background (for example
when you log in). You can instantly
pop up new emacs windows (frames) with
emacsclient. Of course, you could
already have an emacs 'server' in
older versions, but being able to
start it in the background makes this
a much nicer solution"
From http://emacs-fu.blogspot.com/2009/07/emacs-23-is-very-near.html
The command I use is M-x byte-force-recompile RET, it then asks the directory so, for example, I give it ~/.emacs.d/elpa/. It then recompiles everything in there, usually no need to delete .elc files first or mess with it in other ways.
For my using spacemacs, the command is spacemacs/recompile-elpa. The command byte-recompile-directory does not compile any file.