Rafael's blog » Emacs

Org mode 8.0

Rafael — Sun, 05 May 2013 20:41:00 +0000

Org mode was updated recently to version 8.0, and together with many great features, an unfortunate consequence it brought is that many lovely features of org2blog/wp no longer work. There is hope for the future, but in the meantime, I will post with Emacs 24.3.1, and the org-mode that comes with it (Org-mode version 7.9.3f).

Updating bibsnarf for arxiv.org

Rafael — Sat, 10 Mar 2012 06:00:00 +0000

bibsnarf.el is a nice tool to get BibTeX entries conveniently from Emacs. Even though it seems that it has not been updated since 2007, it still works with mathscinet, but not with arxiv.org. With the following redefinition, bibsnarf works for me with arxiv:

(defun bsn-arxive-url (author title)
  (concat "http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?db_key=PRE&"
          "&aut_req=YES&aut_logic=AND&author=" (mm-url-form-encode-xwfu author)
          "&ttl_req=YES&ttl_logic=AND&title=" (mm-url-form-encode-xwfu title)
          "&data_type=BIBTEX"))

It would be very nice to be able to use bibsnarf with the version of mathscinet at MR lookup.

Using naquadah theme in Emacs

Rafael — Tue, 08 Mar 2011 04:05:00 +0000

I have been using Naquadah theme in Emacs for some time now, and I think it will be a while until I decide to change. I put the following code in my .emacs after requiring it to modify it a little:

(custom-theme-set-faces
 'naquadah
 `(mode-line ((t (:height 0.7 :background "gray20"))))
 `(mode-line-inactive ((t (:height 0.7))))
 `(gnus-header-name ((t (:height 1.2 :bold t :foreground "sky blue"))))
 `(gnus-header-from ((t (:height 1.2 :bold t :foreground "orange3"))))
 `(gnus-header-subject ((t (:height 1.2 :foreground "cyan3"))))
 `(gnus-header-to ((t (:height 1.2))))
 `(gnus-header-date ((t (:height 1.2))))
 `(font-lock-function-name-face ((t (:foreground "MediumOrchid1" :bold t))))
 '(ido-first-match ((t (:foreground "orange" :bold t))))
 '(ido-only-match ((t (:foreground "yellow"))))
 '(ido-subdir ((t (:foreground "magenta1"))))
 '(minibuffer-prompt ((t (:background "magenta4" :foreground "orange1"))))
 )

After this, my Emacs looks like:

Replacing characters in math mode only

Rafael — Thu, 30 Dec 2010 05:10:00 +0000

Recently I had to change notation in a LaTeX document: a graph I had named had now to be named . The post Replace something in math mode only by Ralf Angeli (from January 2007), helps with that. However the function query-replace-regexp-eval mentioned there, is obsoleted since Emacs 22.1, (or so says C-h f). The following works for me in Emacs 23.2 (requires the function texmathp from AUCTeX):

M-x query-replace-regexp RET H RET \,(if (texmathp) "L" "H") RET

The idea behind it, is that the regular expression H has to be replaced with the result of evaluating (if (texmathp) "L" "H"), which is L inside math mode and H not inside math mode.

Note that after the last RET, the first question can be answered ! to make all replacements without further questions.