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  • How can I background the R process in ESS / Emacs?

    - by Conor
    I often run long R scripts when I start my R environment. I would like to be able to load / run the R script in Emacs / ESS and continue other work in another buffer. When I press C-g or C-c C-c the process is interrupted, and I must restart the script. What is the best way to background the R process in ESS / Emacs?

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  • How to replace a region in emacs with yank buffer contents?

    - by Mad Wombat
    When I use VIM or most modeless editors (Eclipse, NetBeans etc.) I frequently do the following. If I have similar text blocks and I need to change them all, I will change one, copy it (or use non-deleting yank), select next block I need and paste the changed version over it. If I do the same thing in emacs (select region and paste with C-y), it doesn't replace the region, it just pastes at the cursor position. What is the way to do this in emacs?

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  • How do I run an interactive command line Python app inside of Emacs on Win32?

    - by sludge
    If I use M-x shell and run the interactive Python interpreter, Emacs on Windows does not return any IO. When I discovered M-x python-shell, I regained hope. However, instead of running the interactive Python shell, I want to run a specific Python script that features an interactive CLI. (See Python's cmd module for details). Is there a way of launching a Python script in Emacs that is interactive? (stdout, stdin, stderr)

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  • In Emacs, how can I see which slime version is being used?

    - by Michiel Borkent
    I just upgraded my slime using elpa in Emacs. But I wonder if things are like they should be now, because when I removed the old version using elpa, it complained it could not remove a certain folder. So, when I start up Emacs (I know, I shouldn't have closed it), how I can see which slime version actually gets used? Is there a command like M-x slime-version ?

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  • Can emacs generate a table of comments and number sections of a document?

    - by mp3foley
    I'm writing a plain text document with numbered sections or chapters and am wondering if emacs can help with numbering and re-numbering sections. And of course would be great if it could then generate a table of contents as well. I have had a search on google and looked through the emacs wiki but did not come up with anything other than for latex stuff and possibly muse mode, but I would like to keep this as a plain text README style document. Thanks for any help or suggestions.

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  • Is eval the defmacro of javascript?

    - by Florian Margaine
    In Common Lisp, defmacro basically allows us to build our own DSL. I read this page today and it explains something cleverly done: But I wasn't about to write out all these boring predicates myself, so I defined a function that, given a list of words, builds up the text for such a predicate automatically, and then evals it to produce a function. Which just looks like defmacro to me. Is eval the defmacro of javascript? Could it be used as such?

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  • Recent programming language for AI?

    - by Eduard Florinescu
    For a few decades the programming language of choice for AI was either Prolog or LISP, and a few more others that are not so well known. Most of them were designed before the 70's. Changes happens a lot on many other domains specific languages, but in the AI domain it hadn't surfaced so much as in the web specific languages or scripting etc. Are there recent programming languages that were intended to change the game in the AI and learn from the insufficiencies of former languages?

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  • What is a recent programming language of choice for the AI?

    - by Eduard Florinescu
    For a few decades the programming language of choice for AI was either Prolog or LISP, and a few more others that are not so well known. Most of them were designed before the 70's. Changes happens a lot on many other domains specific languages, but in the AI domain it hadn't surfaced so much as in the web specific languages or scripting etc. Are there recent programming languages that were intended to change the game in the AI and learn from the insufficiencies of former languages?

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  • Is IronScheme complete enough or stable enough to be worth learning?

    - by World Engineer
    IronScheme is mentioned on Wikipedia as a successor to a failed project called IronLisp, bringing Lisp to CLR and .NET, the way Clojure does for the JVM. Does anyone have experience with this language? It looks fairly complete (99%) but I'm not sure how to judge whether it's worth my time to fiddle with getting it set up or not. By stable or complete, I mean using it for actual projects rather than just fiddling with tools and Project Euler style problems.

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  • Org-mode lags in highlighting source

    - by quanticle
    I'm using org-mode to maintain my programming notes. This means I have lots of source code blocks, as follows. #+begin_src <language name> <code> #+end_src One thing I've noticed is that when I write the #+end_src, emacs doesn't color the source code as such. Yet, if I quit emacs and reopen the notes file (or force a refresh with the Org-Refresh/Reload-Refresh setup current buffer menu entry) the source is colored grey if I'm using the GUI or green if I'm using emacs in the terminal. Is this an inherent limitation of emacs, or am I doing something wrong in setting up my code blocks that's preventing emacs from going back and recoloring the source code that I've entered?

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  • Do overlays/tooltips work correctly in Emacs for Windows?

    - by Cheeso
    I'm using Flymake on C# code, emacs v22.2.1 on Windows. The Flymake stuff has been working well for me. For those who don't know, you can read an overview of flymake, but the quick story is that flymake repeatedly builds the source file you are currently working on in the background, for the purpose of doing syntax checking. It then highlights the compiler warnings and erros in the current buffer. Flymake didn't work for C# initially, but I "monkey-patched it" and it works nicely now. If you edit C# in emacs, I highly recommend using flymake. The only problem I have is with the UI. Flymake highlights the errors and warnings nicely, and then inserts "overlays" with the full error or warning text. IF I hover the mouse pointer over the highlighted line in code, the overlay pops up. But as you can see, the overlay (tooltip) is truncated, and it doesn't display correctly. Flymake seems to be doing the right thing, it's the overlay part that seems broken., and overlay seems to do the right thing. It's the tooltip that is displayed incorrectly. Do overlays tooltips work correctly in emacs for Windows? Where do I look to fix this?

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  • In C/C++ mode in Emacs, change face of code in #if 0...#endif block to comment face

    - by pogopop77
    I'm trying to add functionality found in some other code editors to my Emacs configuration, whereby C/C++ code within #if 0...#endif blocks is automatically set to the comment face/font. Based on my testing, cpp-highlight-mode does something like what I want, but requires user action. It seems like tying into the font-lock functionality is the correct option to make the behavior automatic. I have successfully followed examples in the GNU documentation to change the face of single-line regular expressions. For example: (add-hook 'c-mode-common-hook (lambda () (font-lock-add-keywords nil '(("\\<\\(FIXME\\|TODO\\|HACK\\|fixme\\|todo\\|hack\\)" 1 font-lock-warning-face t))))) works fine to highlight debug related keywords anywhere in a file. However, I am having problems matching #if 0...#endif as a multiline regular expression. I found some useful information in this post (How to compose region like ""), that suggested that Emacs must be told specifically to allow for multiline matches. But this code: (add-hook 'c-mode-common-hook (lambda () '(progn (setq font-lock-multiline t) (font-lock-add-keywords nil '(("#if 0\\(.\\|\n\\)*?#endif" 1 font-lock-comment-face t)))))) still does not work for me. Perhaps my regular expression is wrong (though it appears to work using M-x re-builder), I've messed up my syntax, or I'm following the wrong approach entirely. I'm using Aquamacs 2.1 (which is based on GNU Emacs 23.2.50.1) on OS X 10.6.5, if that makes a difference. Any assistance would be appreciated!

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  • Clojure evaluation without SLIME

    - by Denis
    Hi, I'm a starter with Emacs (but quite experienced Vim user) and trying to play with Emacs+Clojure combination. Maybe my setup will be unusual for Emacs world, as I'm not using SLIME/swank-clojure, but Emacs + eshell with running clojure REPL in it, mostly due simplicity (or probably because SLIME quite scares me off :D). So, maybe there is a Emacs guru that can help me here: does exists any shortcut (or maybe some elisp sample) to copy/paste code chunks (sexps) from editing buffer to eshell (and possibly execute it)? Thanks.

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  • Correct place to set $BIBINPUTS environment variable

    - by student
    If I set the $BIBINPUTS environment varibale in my .zshrc, it is recognized by emacs-reftex (via emacsclient), if I start emacs from my zsh commandline. However if I start using the menubar or gmrun it doesn't knot this variable. So where is the correct place to set for the whole user environment? If there are several alternatives, let me know. Also if it changed between differend ubuntu-versions. Edit: I have tried to set it in ~/.pam_environment like BSTINPUTS=.:/home/myuser/BiBTeX/:$BSTINPUTS BIBINPUTS=.:/home/myuser/BiBTeX/:$BIBINPUTS but it seems to have no effect (even after rebooting) and is not listed via printenv. I am currently using ubuntu natty + gdm + xmonad.

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  • Emacs24: emacsclient doesn't use global application menu

    - by codethief
    I noticed that Emacs24 makes use of Unity's global application menu. (I'm using Damien Cassou's Emacs24 snapshots.) However, it doesn't do that when emacs, emacsclient or emacsclient.emacs24 are run but just with emacs24. How can I fix that? (Is that a bug? If so, should I file a report in Emacs' or libappmenu's bugtracker?) [EDIT]: As far as I can see this could be related to https://bugs.launchpad.net/ubuntu/+source/appmenu-gtk/+bug/673302 .

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  • How to replace "(" with "\(" in the regexp, Emacs/elisp flavor?

    - by polyglot
    Question as title. More specifically, I'm rather tired of having to type \(, etc. every time I want a parenthesis in Emacs's (interactive) regexp functions (not to mention the \\( in code). So I wrote something like (defadvice query-replace-regexp (before my-query-replace-regexp activate) (ad-set-arg 0 (replace-regexp-in-string "(" "\\\\(" (ad-get-arg 0))) (ad-set-arg 0 (replace-regexp-in-string ")" "\\\\)" (ad-get-arg 0))))) in hope that I can conveniently forget about emacs's idiosyncrasy in regexp during "interaction mode". Except I cannot get the regexp right... (replace-regexp-in-string "(" "\\\\(" "(abc") gives \\(abc instead of the wanted \(abc. Other variations on the number of slashes just gives errors. Thoughts? Since I started questioning, might as well ask another one: since lisp code is not supposed to use interactive functions, advicing query-replace-regexp should be okay, am I correct?

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  • Emacs with CEDET changes copy/paste to include trailing spaces?

    - by Paul D.
    I just started trying out CEDET today, which I really like, but it seems to do something completely worthless with respect to copying/pasting. If I highlight some stuff and copy it, when it gets pasted back the newlines are eliminated and there is just a ton of trailing whitespace on each line. This is really worthless. All I have in my .emacs right now for CEDET is the following: (load-file "~/.emacs.d/cedet-1.0pre7/common/cedet.el") (require 'semantic-ia) (require 'semantic-gcc) (semantic-load-enable-code-helpers) Does anybody know how to turn this off? I can't find anything about this except that the CEDET main page says it has "magic copy & paste".

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  • Can I install Whizzy for Emacs on a Mac (is Mac OS X a unix environment)?

    - by Vivi
    I think my question is pretty stupid, but here it goes: I am using Aquamacs, and I want to install the Whizzy mode. The website for Whizzy says that "it is designed for Unix platforms". I read that Mac OS X is unix certified, but does that mean I can install Whizzy on my mac? If yes, can I install and use it with Aquamacs or do I have to use the Emacs running from the terminal? PS: I don't know whether this question should be posted here or on SuperUser, but as Emacs users seem to hang out here more often, this is the place I chose.

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  • How do I create an empty file in emacs?

    - by Singletoned
    How can I create an empty file from emacs, ideally from within a dired buffer? For example, I've just opened a Python module in dired mode, created a new directory, opened that in dired, and now need to add an empty __init__.py file in the directory. If I use C-x C-f __init__.py RET C-x C-s then emacs doesn't create the file because no changes have been made to it. I would have to type in the file, save it, delete my typing and then save it again for that to work. Thanks

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  • How to, set-justification-full per line in emacs without messing up on return?

    - by inaki
    Hi, I have two problems in emacs. First. How do I set-justification-full for the whole document? I can do M-X set-justification-full for a region successfully, but I would like to make it work in the whole document. Second. How do I manage not to get lines jumping from one place to another when I have done set-justification-full, and press enter? That is, say I have the following paragraph: %%if normalized beforehand then the rule would be, %%\begin{gather} %%(\hat{y}_{i}^{'} \times \hat{y}_{i+1}^{'}) \cdot \hat{z}_{mst} = 1, \quad then \ \Omega 1\\ %%(\hat{y}_{i}^{'} \times \hat{y}_{i+1}^{'}) \cdot \hat{z}_{mst} = %%-1,\quad then \ \Omega When I do set-justification-full, it will convert six lines into three lines, that is, what I want to do is a per line justification. Is this possible in emacs? Thank you all very much for your help. Inhaki2006

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  • Cant apply color theme to one frame in Emacs?

    - by prtksxna
    This is my emacs file http://pastie.org/1003551. I want the theme to change when I am in shell-mode. But what happens is that the theme gets applied on all the frames. I set the variable color-theme-is-global to nil, but still the same problem is persisting. (add-hook 'shell-mode-hook 'color-theme-monokai-terminal) (set-variable 'color-theme-is-global nil) These are lines 81 and 83 in my .emacs file. What should I do to make it work?

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