Ma Gnus v0.9 is released

Lars just released Ma Gnus v0.9 which is mostly a bugfix release.  This will be the one that will get shipped with Emacs 24.4.

ESS R integration with Win32 Emacs

I've had R installed for quite some time and I thought I'd give ESS a spin with it.  Turns out, I just had to do this to get it working on Win 7.

(setq load-path (cons "c:/gnu/elisp/R/ESS/lisp" load-path))
(require 'ess-site)
(setq-default inferior-R-program-name "C:\\R\\R-2.15.1\\bin\\x64\\Rterm.exe")

And I could invoke R from Emacs and send code to the inferior process to execute.   However, I do get the following messages which I'm not sure why it turns up.

Finding all versions of R on your system...

Sorry, no version of R could be found on your system.

Anyone know why it happens?

Emacs Relationship Advice!

In the long running debate started off by Eric S Raymond that is currently churning on the emacs lists about bzr vs Git, there's this gem from David Kastrup.


Women start with vi in the hope it will change, men with Emacs in the hope it will stay the same.  Both are disappointed.

Made my day.  Keeled over laughing.  For some reason, it reminded me of Erik Naggum.

Emacs enters Feature Freeze for the next release and other news

So it's official, that Emacs has entered Feature freeze before the next release is cut.  And svg support being made official and it's right now in testing and appears to work.  You could help test it further by trying the snapshots.


That's about it for the hols.

Your chance to influence Emacs development! Participate in an Emacs survey

The emacs development team is running a survey on what packages to enable by default.  To do that, they need your responses on the packages that you use.  You could parse your .emacs or do M-x report-emacs-bug and see the buffer for the list of modes enabled for you.  The survey link is below

http://www.emacswiki.org/emacs/FrequentlyEnabledPackages_Emacs244_Survey

Please follow the instructions in the link above.  If anything, it might make Emacs easier to use for others.  And please do spread the word.

A few unrelated Emacs tips

I used to prefer installing things by hand but now I'm not so sure after using Emacs package manager.  Add this to your .emacs and do a M-x list-packages to see the list of packages that are available for Emacs.

(setq package-archives '(("gnu" . "http://elpa.gnu.org/packages/")
                         ("marmalade" . "http://marmalade-repo.org/packages/")
                         ("melpa" . "http://melpa.milkbox.net/packages/")))

Yes, not all packages are there; yes, the sites go down sometime, yes it's goes into .emacs.d folder in your relevant OS.   It works smoothly and it saves you a lot of hassle in scouring the net for stuff which overrides the minor inconveniences.

Use outline-mode in your AucTeX mode when editing LaTeX files as outline-minor-mode and while you're at it, do install OutlineMagic to handle the not-so-easy-keychord issue of outline-mode.  I've mapped mine to PF12 key.

 (eval-after-load 'outline

  '(progn

    (require 'outline-magic)

    (define-key outline-minor-mode-map (kbd "<\f12>") 'outline-cycle)))

If you ever had the need to copy your gcc messages to different folders at the same time when sending out emails in gnus, then this thread might be of use to you. Currently doesn't work with group names with spaces in their names especially IMAP folders.

Updated Instructions for Installng AucTeX on Windows and Cygwin

I had written about installing AucTeX earlier and it seems to work most of the time for people based on the emails to me.  Since then AucTeX has been developed further and there's a git repository too for it.  Here's a new set of instructions for the combination of Emacs 24.3, Cygwin and AucTeX.  Now you need git too to clone the repository and follow the instructions by Tassilo Horn here.

It's missing only one bit of instruction; you need to run
$./autogen.sh
before you start the ./configure script like
 $ ./configure --prefix=c:/gnu/ --with-emacs=c:/gnu/emacs-24.3/bin/emacs --with-texmf-dir=c:/MiKTeX2.9/

I prefer the in situ use of AucTeX and so you'd definitely need to follow Tassilo's instructions on the directory customisations especially

;; AUC TeX
;;;lines below are needed as we are calling auctex in situ inside the
;;;git repo instead of installing it.  See
;;; http://permalink.gmane.org/gmane.emacs.auctex.general/5127
(setq TeX-data-directory "C:/gnu/elisp/auctex/")
(setq TeX-lisp-directory "C:/gnu/elisp/auctex/")
(setq preview-datadir (expand-file-name "preview" TeX-data-directory)
      preview-lispdir preview-datadir)
(add-to-list 'load-path "C:/gnu/elisp/auctex/")
(add-to-list 'load-path "C:/gnu/elisp/auctex/preview/")
(setq Info-default-directory-list 
      (cons "c:/gnu/elisp/auctex/doc" Info-default-directory-list))

So, there you have it,using the git version of AucTeX.  And a big thanks to Tassilo for helping me sort out my installation woes.

A small GNU Screen tip for Cygwin MinTTY

I use Cygwin a lot and use the default mintty terminal emulator for most of my scripting work.  While I used GNU Screen, I never used it much till the vertical split patch was merged into it and made available on Cygwin(found the default horizontal split a bit distracting).  Even then, I found the region traversal a chore, having remapped C-a to C-z and using C-z TAB to switch between regions.  Too many keystrokes and a bit awkward for a bad typist like me.

And so I was rooting around mintty settings and was reading the mintty tips page, when I found the following tip for Gnu Screen.
bindkey "^[[1;5I" next
bindkey "^[[1;6I" prev

Well, the above just replaces the session in the current region with the next one or the previous on using Ctrl+Tab and Ctrl+Shift+Tab key combinations.  Which sort of doesn't do screen a bit of justice.  My way of using screen was

Split the mintty screen estate(maximised) into 4 regions as a 2x2 grid, each grid cell starting off a bash shell; this is what I have on my .screenrc

screen -ln -t "home" 1
split -v
focus right
screen -t "bash2" 2 bash
split
focus down
screen -t "bash4" 4 bash
focus left
split
focus down
screen -t "bash3" 3 bash
focus up
Change keybindings above to
bindkey "^[[1;5I" focus next

bindkey "^[[1;6I" focus prev

and now what you have is the ability to use Ctrl and Tab keys chord combination to quickly switch between regions instead of sessions listed in the tips page.  Over the last few days, this settings alone has lead me to use Screen more in my shell work.

Anyone has anything for cut and paste and buffer copy/paste to external applications? Especially with mouse use?

Sometimes it's nice knowing that people are giving you exactly what you wish for

So, it's been sometime since I had learnt Python and I had a chance to use it for a side project of mine. First, the builtin python mode in Emacs along with AC mode was/is more than adequate for your needs.  Even on the Windows platform...ermm....with Cygwin.  With some bare bones emacs config entries I was off coding in Emacs with AC mode trippily suggesting variable completion.  I must admit that AC mode does take some time to get used to

I say this because you're likely to find other suggestions about python-mode and Ropemacs along with a host of dependencies that might not be worth the effort.  Of course, your patience & YMMV but as I said the builtin python mode will serve your needs even if the other suggestions don't pan out.

On the side project of mine involving stock ticker data, I found the python Panda library quite easy to use.  A lot of the procedural code is wiped out by using Pandas and dataframes. Going through the documentation on slicing and dicing the dataframes, I was thinking, this is similar to SAS in thinking of the data rows as part of a dataset and all it needs some SQL support to make it even more easier than dealing with indices and other list semantics in Pandas.

And what do you know?  Someone's already done it. I found pandasql developed Yhat to do exactly what I was thinking, providing an SQL layer to Pandas.

Things are looking even simpler for my project.

SciPy 2013 :Emacs + org-mode + python in reproducible research

Thought people might be interested in the Emacs and Org-mode use.

Emacs + org-mode + python in reproducible research