103 lines
3.3 KiB
JavaScript
103 lines
3.3 KiB
JavaScript
|
/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
|
||
|
|
/* vim: set ts=2 et sw=2 tw=80: */
|
||
|
|
|
||
|
|
/*************************************************************
|
||
|
|
*
|
||
|
|
* MathJax/extensions/TeX/extpfeil.js
|
||
|
|
*
|
||
|
|
* Implements additional stretchy arrow macros.
|
||
|
|
*
|
||
|
|
* ---------------------------------------------------------------------
|
||
|
|
*
|
||
|
|
* Copyright (c) 2011-2013 The MathJax Consortium
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
MathJax.Extension["TeX/extpfeil"] = {
|
||
|
|
version: "2.3"
|
||
|
|
};
|
||
|
|
|
||
|
|
MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
|
||
|
|
|
||
|
|
var TEX = MathJax.InputJax.TeX,
|
||
|
|
TEXDEF = TEX.Definitions;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Define the arrows to load the AMSmath extension
|
||
|
|
// (since they need its xArrow method)
|
||
|
|
//
|
||
|
|
TEXDEF.Add({
|
||
|
|
macros: {
|
||
|
|
xtwoheadrightarrow: ['Extension','AMSmath'],
|
||
|
|
xtwoheadleftarrow: ['Extension','AMSmath'],
|
||
|
|
xmapsto: ['Extension','AMSmath'],
|
||
|
|
xlongequal: ['Extension','AMSmath'],
|
||
|
|
xtofrom: ['Extension','AMSmath'],
|
||
|
|
Newextarrow: ['Extension','AMSmath']
|
||
|
|
}
|
||
|
|
},null,true);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Redefine the macros when AMSmath is loaded
|
||
|
|
//
|
||
|
|
MathJax.Hub.Register.StartupHook("TeX AMSmath Ready",function () {
|
||
|
|
MathJax.Hub.Insert(TEXDEF,{
|
||
|
|
macros: {
|
||
|
|
xtwoheadrightarrow: ['xArrow',0x21A0,12,16],
|
||
|
|
xtwoheadleftarrow: ['xArrow',0x219E,17,13],
|
||
|
|
xmapsto: ['xArrow',0x21A6,6,7],
|
||
|
|
xlongequal: ['xArrow',0x003D,7,7],
|
||
|
|
xtofrom: ['xArrow',0x21C4,12,12],
|
||
|
|
Newextarrow: 'NewExtArrow'
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
//
|
||
|
|
// Implements \Newextarrow to define a new arrow (not compatible with \newextarrow, but
|
||
|
|
// the equivalent for MathJax)
|
||
|
|
//
|
||
|
|
TEX.Parse.Augment({
|
||
|
|
NewExtArrow: function (name) {
|
||
|
|
var cs = this.GetArgument(name),
|
||
|
|
space = this.GetArgument(name),
|
||
|
|
chr = this.GetArgument(name);
|
||
|
|
if (!cs.match(/^\\([a-z]+|.)$/i)) {
|
||
|
|
TEX.Error(["NewextarrowArg1",
|
||
|
|
"First argument to %1 must be a control sequence name",name]);
|
||
|
|
}
|
||
|
|
if (!space.match(/^(\d+),(\d+)$/)) {
|
||
|
|
TEX.Error(
|
||
|
|
["NewextarrowArg2",
|
||
|
|
"Second argument to %1 must be two integers separated by a comma",
|
||
|
|
name]
|
||
|
|
);
|
||
|
|
}
|
||
|
|
if (!chr.match(/^(\d+|0x[0-9A-F]+)$/i)) {
|
||
|
|
TEX.Error(
|
||
|
|
["NewextarrowArg3",
|
||
|
|
"Third argument to %1 must be a unicode character number",
|
||
|
|
name]
|
||
|
|
);
|
||
|
|
}
|
||
|
|
cs = cs.substr(1); space = space.split(","); chr = parseInt(chr);
|
||
|
|
TEXDEF.macros[cs] = ['xArrow',chr,parseInt(space[0]),parseInt(space[1])];
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
MathJax.Hub.Startup.signal.Post("TeX extpfeil Ready");
|
||
|
|
});
|
||
|
|
|
||
|
|
MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/extpfeil.js");
|