gmane.emacs.help

removing menubar and window frame

Chengqi(Lars) Song — 2008-12-02T04:33:03

Hello, To maximize the space for editing area, I want to hide manubar and the window-frame, but sometimes I need them so I also want to assign a hotkey to toggle them. Could you give any suggestion? Thank you. By the way, by "window-frame", I mean the outer frame of the window with the window title, maximze/minimize/close buttons. thanks lars

Re: Gnuserv vs Emacsserver

Chetan — 2008-12-02T03:32:21

... After looking at the suggestions, I have tried to work on my most irritant point 3. Here is a package that does what I want. Now the next is to try item 4. Looks like creating an executable that handles the same arguments but uses emacsserver is the simplest. I will try to do that for me. Chetan

Re: wikipedia's (ascii) math notation? emacs easy-way to translateit?

Phil Carmody — 2008-12-02T02:31:07

I suspect of all the reasons to prefer Pari/GP: $ gp -q ? printtex(x^2/x^3) \frac{1}{x} over Mathematica, that this isn't one of them. It's a reason to prefer Xah in ones killfile, though. Phil

Re: wikipedia's (ascii) math notation? emacs easy-way to translateit?

Paul R — 2008-12-01T21:43:57

Xah> Mathematica is a order of magnitude better because its typesetting Xah> system not only passively show math formulas as a pretty printing Xah> system, but the markup syntax is also semantically meaningful. (for Xah> example, when you type set x^2/x^3, it actually knows that it is Xah> x^(2/3) and you can have it automatically simplify the expression Xah> or computer numerical values). Are we really talking about a typesetting system here ? I would not say MS Paint is an order of magnitude better than emacs because you can draw with pixel while in emacs you still have to draw in old ascii art. Maxima, for exemple, being a symbolic expressions processor, will let you work with symbolic expressions and provide export to latex formulas. I have been using happily mixed session of auctex and maxima in the past for scientific presentations. I guess imaxima has improved a lot since and can provide most of what you will need nowaday.

RE: What to use instead of find-if?

Drew Adams — 2008-12-01T21:24:19

There are no doubt lots of ways to do it. Here's one: (defun my-find-if (pred xs) (catch 'my-found (dolist (x xs) (when (funcall pred x) (throw 'my-found x))) nil))

Re: wikipedia's (ascii) math notation? emacs easy-way to translate it?

Xah Lee — 2008-12-01T18:22:01

that's one of the myth among open source tech geekers. TeX is proprobably not among one of the best tool among typesetting professionals. When tech geekers speak of TeX, they often speak of in the domain of mathematical knowledge presentation and publishing. In the math knowledge presentation, i am a expert, and personally known that Mathematica is a ORDER OF MAGNITUDE better than TeX. Mathematica is a order of magnitude better because its typesetting system not only passively show math formulas as a pretty printing system, but the markup syntax is also semantically meaningful. (for example, when you type set x^2/x^3, it actually knows that it is x^(2/3) and you can have it automatically simplify the expression or computer numerical values). Having a math typesetting system that also has semantic meaning is part of the expressed goal of MathML (which started after Mathematica had such a system is heavily influened by Wolfram Research). However, so far MathML never caught up. See: • The TeX Pestilence

Re: auto-save missing

Maarten Bergvelt — 2008-12-01T16:46:38

So you have something in your .emacs that causes this error (Warning: Crystal Ball in Operation). Investigate your .emacs file. We don't have it so we cannot help. (Crystal balls are not that powerful).

perl indentation

Jagadeesh — 2008-12-01T16:13:03

Hi, Again this is a newbie question. how do I indent perl code? Is there any key? Thanks Jagadeesh

Re: auto-save missing

Jagadeesh — 2008-12-01T16:10:42

I am newbie. coming from vim. When I start emacs complains file load error: auto-save.el Thanks for your reply

What to use instead of find-if?

Rupert Swarbrick — 2008-12-01T19:56:13

I was messing around last night and added a small feature to my local copy of gnus. Cool. I reckon it'd be useful in general, so I was going to post it to ding. Cool. However Looking back at the code, I realised I used cl's find-if (I know somewhat more common lisp than elisp). And gnus doesn't (require 'cl). So the code I'm thinking about does the following: (let ((blah (find-if (lambda (elem) (whopping-great-predicatey-thing)) some-list))) (if blah (something using blah) (something else))) Can anyone suggest a vaguely idiomatic way to do this using the built-in constructs of elisp? This is a genuine question, by the way. I'm sure I'm being thick not spotting a neat way to write this. Rupert

What to use instead of find-if?

Rupert Swarbrick — 2008-12-01T19:54:20

--=-=-= I was messing around last night and added a small feature to my local copy of gnus. Cool. I reckon it'd be useful in general, so I was going to post it to ding. Cool. However Looking back at the code, I realised I used cl's find-if (I know somewhat more common lisp than elisp). And gnus doesn't (require 'cl). So the code I'm thinking about does the following: (let ((blah (find-if (lambda (elem) (whopping-great-predicatey-thing)) some-list))) (if blah (something using blah) (something else))) Can anyone suggest a vaguely idiomatic way to do this using the built-in constructs of elisp? This is a genuine question, by the way. I'm sure I'm being thick not spotting a neat way to write this. Rupert --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iJwEAQECAAYFAkk0QOwACgkQRtd/pJbYVoYc6AP8CbG17u+2UZ5hGcbnBS5C29u2 bQLnTpigHQHn1zXrIsdhDYqwSW9iB3zof+F/MQVVr728chiXTRiq8OlHdwk

Re: perl indentation

aartist — 2008-12-01T19:11:35

M-x cperl-mode

RE: change "word" definition (syntax table) for double-click?

Drew Adams — 2008-12-01T18:52:23

I should also have mentioned that FFAP is an alternative to using `goto-address(-mode)'. Load library ffap, then evaluate (ffap-bindings). Then you can use `S-mouse-3' to follow URLs and email addresses. The differences from `goto-address(-mode)' are that there is no highlighting and mouse-2 keeps its normal behavior.

RE: change "word" definition (syntax table) for double-click?

Drew Adams — 2008-12-01T18:39:38

BTW, I see that Emacs 23 has improved this by providing minor mode `goto-address-mode'. Repeat it to turn off the highlighting, mouse sensitivity, C-c RET, etc. Unfortunately, the Emacs 23 Emacs manual is not yet up-to-date on this - it doesn't mention `goto-address-mode', which leaves you knowing no way to turn it off. I'll file a doc bug for that.

RE: change "word" definition (syntax table) for double-click?

Drew Adams — 2008-12-01T18:29:53

By "highlight", I think you mean "select", as in setting the active region to that text. Easy solution: `M-x goto-address'. That will put links on URLs and email addresses, which you can then click (single-click) with mouse-2 (and mouse-1, if `mouse-1-click-follows-link' is non-nil). See the Emacs manual, node Hyperlinking, and its subnodes. If you don't like that for some reason, and you really want to change double-clicking mouse-2 so that it selects such things, then read on. Emacs already does that too, at least for many URLs etc. and at least in some modes, such as Emacs-Lisp mode. That is, provided you double-click (with mouse-2) on a symbol-constituent character, such as :/.?=< at >. If you instead double-click a word-constituent character, then just that word is selected. For example, in Emacs-Lisp mode, if you double-click the URL http://www.emacswiki.org/emacs/SiteMap at the : or a / or a ., then the whole URL is selected. And in the email address help-gnu-emacs< at >gnu.org, if you double-click a - or

Re: wikipedia's (ascii) math notation? emacs easy-way to translateit?

Jay Belanger — 2008-12-01T16:20:36

Peter Dyballa Web.DE> writes: ... It's the same Calc. Before GNU Emacs 22.1, Calc 2.02f required a patch to install. Since then, Calc has been part of Emacs.

Re: change "word" definition (syntax table) for double-click?

Xah Lee — 2008-12-01T05:57:55

That's easy. here's a sample code: (defun get-english-word-boundary () "Return the boundary of the current word. The return value is of the form: (cons pos1 pos2). A “word” is a sequence of letters and hyphen. " (save-excursion (let (p1 p2) (progn (skip-chars-backward "-A-Za-z") (setq p1 (point)) (skip-chars-forward "-A-Za-z") (setq p2 (point))) (cons p1 p2) )) ) (defun select-word () "Mark the url under cursor." (interactive) ; (require 'thingatpt) (let (bds) (setq bds (get-english-word-boundary)) (set-mark (car bds)) (goto-char (cdr bds)) ) ) you can add chars to the skip-chars-backward and skip-chars-forward so that it'll skip to what you consider word boundary. If you want everything except whitspace, you can use like: (skip-chars-backward "^\n\t") unless you are writing a mode, syntax table is probably not a good choice here. Xah ∑ http://xahlee.org/ ☄

unmark all in ibuffer

Xah Lee — 2008-12-01T04:49:39

ibuffer's keybindings are i think designed to be compatible with dired. However, by habit sometimes i press “U” trying to unmark all, but it gets me ibuffer-do-replace-regexp instead. Does anyone know: • shouldn't U be the key to unmark all as in dired, instead of the “**”? • what does ibuffer-do-replace-regexp do exactly? the online doc doesn't say so much. Thanks. Xah ∑ http://xahlee.org/ ☄

auto-save missing

Jagadeesh — 2008-12-01T14:53:38

Hi, I have noticed today that auto-save.el file is missing. Is there anyway I can download this file alone? Thanks

Re: auto-save missing

Chetan — 2008-12-01T15:20:25

I didn't know there was such a file. What does it provide?

Re: change "word" definition (syntax table) for double-click?

2008-12-01T05:08:28

Xah, ] How can I have a double-click on for instance the middle "o" in ] "http://www.foo.com/" highlight the entirety of "http:// www.foo.com/" ] rather than merely the word "foo"? Thanks for your reply. I appreciate it. Unfortunately, I see that I sent you (and everyone else) down the wrong path with my poor wording. Let me try again. The double-clicking-on-a-URL was just one sample application. What I want is for double-clicking with the mouse to highlight, as a word, all contiguous non-whitespace characters. Some sample applications I want this for are: o Double-clicking in the middle of URLs. o Double-clicking in the middle of RFC822-compliant email addresses. o Double-clicking in the middle of passwords and other strings having non-alphanumeric characters. In short, I want the same double-clicking control inside emacs that character classes give me inside xterm and cutchars give me inside rxvt. xterm(1) CHARACTER CLASSES Clicking the left pointer button twice in rap