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The 0 means "highlight the whole match". A positive number means "highlight the nth group in the regexp". For example, the following code italicizes the word between braces in expressions of the form \begin{***}. (add-hook 'TeX-mode-hook (lambda () (font-lock-add-keywords nil '((...

You can use pushnew instead of push if you don't want duplicates in the result.

For parens or braces highlighting, I suggest paren-mode or mic-paren-mode. Highlighting specific words is done with font-lock-add-keywords. The following snippet in your init file should color \quad in red in tex or latex buffers. (add-hook 'TeX-mode-hook (lambda () (font-lock-add-keywords nil '((&q...

In your example, the definition is stored in the history of the ielm repl. So I would suggest searching the history, e.g. with M-r defun say-hi RET or, a bit more programmatically, (comint-previous-matching-input "^(defun say-hi" 1) The whole history can be accessed from the tool bar, menu...

I have used the following values for years without problem.
The default values are really too low, I used to run into big problems with keyboard macros before changing them.

Perfect, thanks!

Hi,

is there a version of the hyperspec in texinfo format, ready for browsing from inside emacs?

Please, post messages about emacs-lisp in the emacs lisp section of the forum. When it comes to writing a global-set-key-future command, this is hard to do if you are not fluent in emacs-lisp. It is easy if you have a good grasp of emacs-lisp, but also pointless since then it is faster to switch to ...

You are not posting in the correct section of the forum. Post in the emacs lisp section, you will get more answers. Also try to be a bit more specific in your queries. What do you mean by "see" or "watch" commands ? If you want to display the documentation of a command, use the s...

ps. I'm following "Ansi CL" as guide book... You think that "Land of Lisp" can be a better choise for a beginner like me??..

Graham's Ansi CL is fine. The book Land of lisp is written in a very different style. Have a look at its website and see if you find it appealing.