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Re: can emacs do this
From: |
Pascal J. Bourguignon |
Subject: |
Re: can emacs do this |
Date: |
Thu, 15 Jan 2015 08:57:17 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Of course.
Any question starting by "Can emacs do …" has a positive answer. So
what's the purpose of asking?
> What facilities of emacs can be used for this?
Just use emacs, there's no need for anything special!
(defun √ (x) (sqrt x))
(√ 42) --> 6.48074069840786
(defmacro λ (λ-list &rest body) `(lambda ,λ-list ,@body))λ
(mapcar (λ (x) (* x x)) '(1 2 3 4)) --> (1 4 9 16)
There's also an alternative, where emacs displays eg. λ when there is
lambda in the file:
http://www.emacswiki.org/emacs/PrettySymbol
http://www.emacswiki.org/emacs/PrettyGreek
--
__Pascal Bourguignon__ http://www.informatimago.com/
“The factory of the future will have only two employees, a man and a
dog. The man will be there to feed the dog. The dog will be there to
keep the man from touching the equipment.” -- Carl Bass CEO Autodesk