When edit .emacs.el in emacs, I have run Alt + X eval-buffer command.
My os is windows.
And when I restart emacs it display following warning:
Warning (initialization): An error occurred while loading
`.../.emacs.el':
error: Non-hex digit used for Unicode escape
To ensure normal operation, you should investigate and remove the
cause of the error in your initialization file. Start Emacs with the
`--debug-init' option to view a complete error backtrace.
.emacs.el is:
;;Open all fine in one running instance
;;Ref:http://www.johndcook.com/blog/2010/07/28/miscellaneous-emacs-adventures/
;;(server-start)
;;TEST
(custom-set-variables
;; custom-set-variables was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
`(ansi-color-names-vector ["#242424" "#e5786d" "#95e454" "#cae682" "#8ac6f2" "#333366" "#ccaa8f" "#f6f3e8"])
`(custom-enabled-themes (quote (wheatgrass))))
(custom-set-faces
;; custom-set-faces was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
)
;;Set auto save backup location, failed with following warning
(setq backup-directory-alist
`((".*" . ,"D:\Unix-Tmp")))
(setq auto-save-file-name-transforms
`((".*" ,"D:\Unix-Tmp" t)))
(require 'recentf)
(recentf-mode 1)
(setq inhibit-startup-screen t)
(put 'upcase-region 'disabled nil)
(put 'downcase-region 'disabled nil)
;;Aspell install failed
;;(setq-default ispell-program-name "C:/bin/Aspell/bin/aspell.exe")
;;(setq text-mode-hook '(lambda() (flyspell-mode t) ))
How I can resolve it?
The problem is these lines:
(setq backup-directory-alist
`((".*" . ,"D:\Unix-Tmp")))
(setq auto-save-file-name-transforms
`((".*" ,"D:\Unix-Tmp" t)))
The \U introduces a unicode escape ... and has to be followed by hex digits.
What you actually appear to want is a literal backslash character, so you need to escape it; i.e.
(setq backup-directory-alist
`((".*" . ,"D:\\Unix-Tmp")))
(setq auto-save-file-name-transforms
`((".*" ,"D:\\Unix-Tmp" t)))
Reference: http://www.gnu.org/software/emacs/manual/html_node/elisp/Basic-Char-Syntax.html#Basic-Char-Syntax
UPDATE
However, this appears to lead to another problem. A better solution would be to do what #Stefan suggests. Use "/" instead of "\" as the pathname separator. (It should work even on Windows ...)
Error is caused by D:\Unix-Tmp, \U introduces unicode escape as Stephen stated.
But when I change to :
(setq backup-directory-alist
`((".*" . ,"D:\\Unix-Tmp")))
(setq auto-save-file-name-transforms
`((".*" ,"D:\\Unix-Tmp" t)))
It will throw another:
Loading d:/git_root_tfs/WorkStation/Unix-Home/.recentf...done Cleaning
up the recentf list...done (0 removed) For information about GNU Emacs
and the GNU system, type C-h C-a. make-auto-save-file-name: Invalid
use of `\' in replacement text
At last I change the path to D:\Tmp-Unix and it works.
(setq backup-directory-alist
`((".*" . ,"D:\Tmp-Unix")))
(setq auto-save-file-name-transforms
`((".*" ,"D:\Tmp-Unix" t)))
Total .eamcs.el is
;;Open all fine in one running instance
;;Ref:http://www.johndcook.com/blog/2010/07/28/miscellaneous-emacs-adventures/
;;(server-start)
;;TEST
(custom-set-variables
;; custom-set-variables was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
`(ansi-color-names-vector ["#242424" "#e5786d" "#95e454" "#cae682" "#8ac6f2" "#333366" "#ccaa8f" "#f6f3e8"])
`(custom-enabled-themes (quote (wheatgrass))))
(custom-set-faces
;; custom-set-faces was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
)
;;Set auto save backup location, failed with following warning
(setq backup-directory-alist
`((".*" . ,"D:\Tmp-Unix")))
(setq auto-save-file-name-transforms
`((".*" ,"D:\Tmp-Unix" t)))
(require 'recentf)
(recentf-mode 1)
(setq inhibit-startup-screen t)
(put 'upcase-region 'disabled nil)
(put 'downcase-region 'disabled nil)
;;Aspell install failed
;;(setq-default ispell-program-name "C:/bin/Aspell/bin/aspell.exe")
;;(setq text-mode-hook '(lambda() (flyspell-mode t) ))
Always use forward slashes rather than backward slashes for file names in Emacs. Windows usually prefers backward slashes, but other than in a few rare exceptions, Windows actually accepts forward slashes just as well.
Emacs in Windows treats forward slashes (/) as backslashes (\). When you are specifying any type of path, you should always use forward slashes. Emacs will interpret them correctly. This allows you to control the escape sequence use to times where that is the intended effect.
C:/Users/username/AppData/Roaming/.emacs is a perfectly valid path/filename in Emacs.
Related
I just started learning common lisp, so excuse me if lisp terminology is a bit off. I installed slime and am using Clozure CL. ccl is working just fine. When I enter a wrong expression, the debugger opens (slbc ccl/1 buffer). When I enter q, the debugger buffer closes, and then the inferior-lisp buffer does not respond. Why is that?
and if I want to continue work, I seem to have to restart inferior-lisp, what is it I am doing wring?
I just wanted to say put out the solution I found.
I had followed the instructions in the slime's user manual (from here), I used MALPA repository to install slime.
As PuercoPop's says in the comments, i should land in a slime-repl buffer, which I didn't have by default. I did some further digging and learnt that i have to add a few more line to my .emacs file for the slime-repl buffer to load. The line needed was
(slime-setup '(slime-fancy))
My final .emacs file looks like this:
(require 'package)
(add-to-list 'package-archives
'("melpa" . "https://melpa.org/packages/"))
(when (< emacs-major-version 24)
(add-to-list 'package-archives '("gnu" . "http://elpa.gnu.org/packages/")))
(package-initialize)
(setq package-enable-at-startup nil)
(setq inferior-lisp-program "F:/Binaries/ccl/wx86cl64.exe")
(setq slime-auto-connect 'ask)
(setq slime-net-coding-system 'utf-8-unix)
(require 'slime)
(slime-setup
'(slime-fancy slime-asdf slime-references slime-indentation slime-xref-browser)
)
I try to get a practical development environment for R in Emacs, hoping to get auto-completion working as shown in http://www.emacswiki.org/emacs/ESSAuto-complete.
However, even in a minimal configuration, I can't get it working.
See what I get on http://screencast.com/t/qcyVwkECX. In fact, while AC does work (see completion menu appearing), it's like if there was no info from the R language itself, while ac-source-R is WELL added to ac-sources.
Do you understand what's happening?
Best regards.
PS- Here is my minimal Emacs configuration file for the demo:
;; Auto Completion
(add-to-list 'load-path "~/.emacs.d/elpa/auto-complete-20140824.1658/")
(add-to-list 'load-path "~/.emacs.d/elpa/popup-20140815.629/")
(when (require 'auto-complete-config)
(ac-config-default)
;; use `C-n/C-p' to select candidates
(setq ac-use-menu-map t)
(define-key ac-menu-map (kbd "C-n") 'ac-next)
(define-key ac-menu-map (kbd "C-p") 'ac-previous)
;; unbind some keys (inconvenient in iESS buffers)
(define-key ac-completing-map (kbd "M-n") nil)
(define-key ac-completing-map (kbd "M-p") nil)
;; set default sources
(setq ac-sources
(append '(ac-source-features
ac-source-functions
ac-source-yasnippet
ac-source-variables
ac-source-symbols)
ac-sources))
(setq ac-delay 0) ; faster than default 0.1
(setq ac-auto-show-menu 0.2)
(setq ac-quick-help-delay 0.5)
(setq ac-quick-help-height 10)
(setq ac-candidate-limit 100)
;; completion by TAB
(define-key ac-completing-map
(kbd "<tab>") 'ac-complete)
;; avoid Flyspell processes when auto completion is being started
(ac-flyspell-workaround))
;; ESS: Emacs Speaks Statistics
(add-to-list 'load-path "~/.emacs.d/elpa/ess-20140824.1452/lisp/")
(setq shell-file-name "zsh.exe")
(add-to-list 'auto-mode-alist '("\\.[rR]\\'" . R-mode))
(autoload 'R "ess-site" "Call 'R', the 'GNU S' system from the R Foundation." t)
(autoload 'R-mode "ess-site" "Major mode for editing R source." t)
(setq ess-ask-for-ess-directory nil)
(setq inferior-ess-same-window nil)
(setq ess-default-style 'DEFAULT)
(with-eval-after-load "ess-site"
;; use eldoc to report R function names
(require 'ess-eldoc)
(add-hook 'inferior-ess-mode-hook 'ess-use-eldoc))
PPS- In fact, ElDoc does not seem to work either!
UPDATE
I just discovered it almost works when the iESS buffer gets created, not when just editing R code in its own buffer. See http://screencast.com/t/fKRjLmIC6K0.
What would explain that iESS must be run first before it finally works?
Still, something that does not work is the completion on function arguments (like with the cat function on the page http://www.emacswiki.org/emacs/ESSAuto-complete).
Why does that not work?
After opening a R file with emacs, if you have this mode described into your emacs status bar:
(ESS[S] [none] ElDoc AS)
You can run this shortcut C-c C-s to attach a R session to you ESS[S] editor mode.
If you already have one or some R session open, emacs will ask you to choose the R session you want to use. Otherwise if you have not already open a R session then emacs will open a new one for you.
Next, you should have this information inside your status bar:
(ESS[S] [R db -] ElDoc AS)
and the completion should work.
I've got Auto Complete Mode installed for Emacs.
First: When I'm typing declarations I get the normal auto-complete behavior:
So I hit Tab to complete — no problem. But then I hit ;:
It instantly tries to complete something! And I can't hit Enter because that'll accept the erroneous completion!
So I have to hit C-j. What a pain.
Second: Once I'm done with a declaration, I type }:
...but it doesn't get indented properly unless I type Tab.
What gives?
Update, settings:
I'm using Emacs 23. My css-electric-keys are } and ;. My Auto Complete configuration is as follows:
(ac-config-default)
(setq ac-auto-start t)
(setq ac-delay 0.1)
(setq ac-auto-show-menu nil)
(setq ac-show-menu-immediately-on-auto-complete t)
(setq ac-trigger-key nil)
Here's a few suggestions:
(setq ac-auto-start t) starts autocomplete automatically. If you change that to (setq ac-auto-start 1) (or 2 or 3) then it will only start after that many characters have been typed. This might not solve your problem though if after you type the ;, it considers the entire preceding word as part of the current auto-complete search.
Maybe the problem is that it isn't recognizing the semicolon as a delimiting character (like whitespace), so it thinks you're still adding to the last word. Perhaps adding the semicolon string to ac-ignores would do the trick? (Not sure what the syntax for that would be)
Maybe you can prevent auto-completion via the enter key by adding: (define-key ac-complete-mode-map "\t" 'ac-complete) and (define-key ac-complete-mode-map "\r" nil). I'm not sure how this will interact with DWIM though (enabled by default).
Try adding semicolon as an auto-complete key?
My .emacs knowledge on a scale of 0 to 10 is like a 1.5, but maybe this will jog some better ideas.
Old stuff I know, but try the following:
(add-hook 'css-mode-hook
(lambda ()
(make-local-variable 'ac-ignores)
(add-to-list 'ac-ignores ";")))
From the manual
Quite often I find myself with bunch of R processes running in ESS buffers. There's a convenient Lisp function ess-request-a-process that asks for R process, and brings it to front. The only downside is that it somehow defaults to S, so each time I'm about to make a switch, I have to type R, ad nauseam.
I tried customising the ess-language variable, but even if I set value to "R", i.e. 4 for current session, or even if I save settings for future session, as soon as I type C-c C-k, automagically S appears once again. It's very annoying, and I really don't want to end up with C-x C-b and then C-s for desired R session! =)
I even tried setting (setq-default ess-language "R") in .emacs, but with no luck...
BTW, I'm running Emacs v. 23.1.1 on Linux Mint and Emacs v. 23.2 on Arch Linux, with ESS v. 5.12. If that's relevant, I run Emacs from terminal with -nw argument. Here's my .emacs:
;; start server
(server-start)
;; load ESS
(require 'ess-site)
(require 'ess-rutils)
;; set HTML help as default
(setq inferior-ess-r-help-command "help(\"%s\", help_type = \"html\")\n")
(custom-set-variables
;; custom-set-variables was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
'(ess-help-kill-bogus-buffers t)
'(ess-rutils-keys nil)
'(show-paren-mode t))
(custom-set-faces
;; custom-set-faces was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
)
(put 'upcase-region 'disabled nil)
So... how to set R once and for all? (I don't use S/S+/SAS)
I did not know about this function so far. C-c C-k is bound to ess-force-buffer-current in ESS buffers.
[edit: C-c C-k is indeed bound to ess-request-a-process in iESS, in ESS it's ess-force-buffer-current]
In any case the variable you have to customize is ess-dialect
(setq-default ess-dialect "R")
It's buffer-local variable and some other stuff in ess-mode-hook might set it a different value.
Check it in each buffer with C-h v ess-dialect
Additionally, if you already running several processes then ess-switch-process (C-c C-s) might be the right way to go.
[edit: it will not jump to a process but just reset the associated process of the current ESS buffer]
[edit: After dwelling deeper on the issue it turned out that ess-request-a-process uses ess-language variable were the ess-dialect seems to be more appropriate. The problem is that each time an ess-inferior process starts it resets the global value of ess-language. This is why setting it in your case didn't work.
Here is a quick fix:
(defun ess-set-language ()
(setq-default ess-language "R")
(setq ess-language "R")
)
(add-hook 'ess-post-run-hook 'ess-set-language t)
]
ess-mode is "Emacs speaks statistics." This mode is useful for editing programs for R or Splus (two separate statistics packages).
In my buffer, when ever I type _ the character is replaced with <-, which is very frustrating. Is there an emacs lisp statement to turn off this behavior?
emacs: 22.1.1
ess-mode release (unknown)
From ESS's manual (look under "Changes/New Features in 5.2.0"):
ESS[S]: Pressing underscore ("_") once inserts " <- " (as before); pressing underscore twice inserts a literal underscore. To stop this smart behaviour, add "(ess-toggle-underscore nil)" to your .emacs after ess-site has been loaded
Since the feature is useful. You can assign it to other key which is less used by you in R it will automatically unassign it from underscore. I personally assign it to ";" by adding following line in .emacs file.
(setq ess-smart-S-assign-key ";")
My version of emacs is 24.3 All-in-one installation file by Vincent Goulet.(Installed on windows 7)
hope this helps
Edit
In emacs 25.2 above do not work instead add following in the .emacs file
(setq ess-smart-S-assign-key ";")
(ess-toggle-S-assign nil)
(ess-toggle-S-assign nil)
A more recent version which seemed to work for me, and is a lot less verbose (you essentially keep normal underscores, but can set your own key for this smart behaviour!):
(global-set-key (kbd "C-;") (lambda () (interactive) (insert " <- ")))
(ess-toggle-underscore nil)
Insert your shortkey choice instead of C-;.
From http://www.r-bloggers.com/a-small-customization-of-ess/ and
How to change smart assign key ("_" to "<-") binding in ESS
To assign ":" to "<-" and to stop the assignment of underscore (underbar) "_" to "<-" put the following in .emacs (yes, the repeated line is correct)
(setq ess-smart-S-assign-key ":")
(ess-toggle-S-assign nil)
(ess-toggle-S-assign nil)
(ess-toggle-underscore nil) ; leave underscore key alone!
Like Michał Marczyk and this R mailing list thread suggested, add this line to ~/.emacs:
(ess-toggle-underscore nil)
Then reload it with M-x load-file and type ~/.emacs.
But if you load the file again, e.g. if you add another customization, then it toggles it back to the original state. So toggle it twice, the first one forcing it to the default:
(ess-toggle-underscore t)
(ess-toggle-underscore nil)
That being said, I like Drummermean's solution better, but it also reverts back to default if you add it to ~/.emacs and load it twice. So force a toggle to the default before:
(ess-toggle-underscore t)
(global-set-key (kbd "M--") (lambda () (interactive) (insert " <- ")))
(ess-toggle-underscore nil)
I bound the smart assignment to Opt-[minus] like RStudio (on a Mac).
As a follow-up on #mmorin answer. To set keybinding for the assignment operator the same way as in Rstudio add the following in your .emacs file
(ess-toggle-underscore t)
(ess-toggle-underscore nil)
(define-key ess-mode-map (kbd "M--") (lambda () (interactive) (just-one-space 1) (insert "<-") (just-one-space 1)))
(define-key inferior-ess-mode-map (kbd "M--") (lambda () (interactive) (just-one-space 1) (insert "<-") (just-one-space 1)))