I'm using Emacs in conjunction with AucTeX (running Ubuntu 10.04, if that matters).
Does anyone know if there is a way to automatically enable LaTeX-math-mode (a minor mode of AucTeX) if the point is in any maths environment (ie in a $...$
, a $$...$$
, begin{equation}...\\end{equation}
, and so on)?
I suppose there is a relatively easy answer, since syntax highlighting uses the same criterion for coloring math stuff, but I could not find anything.
If andre-r 's answer doesn't satisfy you, here's some code that sets up `
to self-insert in text mode and act as a math mode prefix in math mode. LaTeX-math-mode
must be off .
(defun LaTeX-maybe-math ()
"If in math mode, act as a prefix key for `LaTeX-math-keymap'.
Otherwise act as `self-insert-command'."
(interactive)
(if (texmathp)
(let* ((events (let ((overriding-local-map LaTeX-math-keymap))
(read-key-sequence "math: ")))
(binding (lookup-key LaTeX-math-keymap events)))
(call-interactively binding))
(call-interactively 'self-insert-command)))
(define-key LaTeX-mode-map "`" 'LaTeX-maybe-math)
The following improvements are left as exercises:
Make it a minor mode.
Make it more robust towards unexpected input (I've only tested basic operation).
Show a better error message if the user presses an unbound key sequence.
Show help if the user presses Ch
or f1
.
LaTeX-math-mode
is "a special minor mode for entering text with many mathematical symbols." (For those who don't know how, you press eg `A and get \\forall.) So I guess it doesn't hurt to leave it on, also if you're not entering maths.
The info page therefore suggests:
(add-hook 'LaTeX-mode-hook 'LaTeX-math-mode)
IMHO the only downside would be that you have to press the prefix twice: `` to get `, at least that works with the standard prefix ` customized in LaTeX-math-abbrev-prefix
.
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