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/**
* (C) Copyright 2004-2007 Shawn Betts
* (C) Copyright 2007-2008 Jeremy Maitin-Shepard
* (C) Copyright 2008 John Foerch
*
* Use, modification, and distribution are subject to the terms specified in the
* COPYING file.
**/
define_keymap("universal_argument_keymap");
interactive("universal-argument",
"Begin a numeric argument for the following command.",
function (I) {
if (I.prefix_argument) {
if (typeof I.prefix_argument == "object") // must be array
I.prefix_argument = [I.prefix_argument[0] * 4];
} else
I.prefix_argument = [4];
I.overlay_keymap = universal_argument_keymap;
},
$prefix = true);
interactive("universal-digit",
"Part of the numeric argument for the next command.",
function (I) {
var digit = I.event.charCode - 48;
if (I.prefix_argument == null)
I.prefix_argument = digit;
else if (typeof I.prefix_argument == "object") { // array
if (I.prefix_argument[0] < 0)
I.prefix_argument = -digit;
else
I.prefix_argument = digit;
}
else if (I.prefix_argument < 0)
I.prefix_argument = I.prefix_argument * 10 - digit;
else
I.prefix_argument = I.prefix_argument * 10 + digit;
},
$prefix = true);
interactive("universal-negate",
"Part of the numeric argument for the next command. "+
"This command negates the numeric argument.",
function universal_negate (I) {
if (typeof I.prefix_argument == "object")
I.prefix_argument[0] = 0 - I.prefix_argument[0];
else
I.prefix_argument = 0 - I.prefix_argument;
},
$prefix = true);
provide("universal-argument");
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