From: Tim X <timx@nospam.dev.null>
To: help-gnu-emacs@gnu.org
Subject: Re: how to learn lisp
Date: Tue, 21 Oct 2008 17:57:35 +1100 [thread overview]
Message-ID: <87r66ah1uo.fsf@lion.rapttech.com.au> (raw)
In-Reply-To: c481c189-96ab-4549-98a0-f37594179b23@y29g2000hsf.googlegroups.com
TheFlyingDutchman <zzbbaadd@aol.com> writes:
> On Oct 12, 9:34 pm, "jacklisp" <jackl...@gmail.com> wrote:
>> how to learn lisp
>
> I have studied the Emacs Lisp manual on more than one occassion and
> never got much past evaluating (+ 2 2) in a buffer. But recently I was
> looking to modify my .emacs file and came across something that I
> wasn't aware of that I find very helpful for learning the Lisp part of
> Emacs Lisp (as opposed to the "Emacs API" part of Emacs Lisp). So if
> you haven't seen it yet, there is a -batch option for starting up
> Emacs. If you create an Emacs Lisp file, for example - hello_world.el
> - you can then execute this file in the same manner you would execute
> a Perl/Python/Ruby/Tcl script by typing "emacs -batch -l
> hello_world.el". In batch mode the (message ... ) function acts like a
> print/printf statement in other languages, so you can start with
> (message "%s" "hello world") and go on from there the way you
> typically would learning a standalone language.
An alternative and useful way to start playing with elisp that is faster
than running scripts with batch mode is IELM mod (e.g. m-x ielm). It
provides an elisp REPL where you can evaluate various elisp forms.
,----[ C-h f ielm RET ]
| ielm is an interactive compiled Lisp function in `ielm.el'.
|
| (ielm)
|
| Interactively evaluate Emacs Lisp expressions.
| Switches to the buffer `*ielm*', or creates it if it does not exist.
|
| [back]
`----
HTH
Tim
--
tcross (at) rapttech dot com dot au
next prev parent reply other threads:[~2008-10-21 6:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-13 4:34 how to learn lisp jacklisp
2008-10-13 8:01 ` Jordan Greenberg
2008-10-13 13:52 ` William Case
2008-10-21 5:36 ` TheFlyingDutchman
2008-10-21 6:57 ` Tim X [this message]
2008-10-22 0:25 ` Xavier Maillard
[not found] ` <mailman.1753.1224635369.25473.help-gnu-emacs@gnu.org>
2008-10-22 2:12 ` TheFlyingDutchman
2008-10-22 5:59 ` Kevin Rodgers
2008-10-22 7:37 ` Xah
2008-10-22 11:29 ` Javier
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