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index.js
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index.js
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"use strict";
/*
ASCIIMathML.ts
==============
lightly modified by Tom Berend - original copyright below...
convert to a TS function that accepts AsciiMath and returns MathML.
not a page translator. Don't touch my document, I'll do that.
and don't worry about IE.
got rid of the onLoad function (just use ASCIIMathML.js for that)
/*
ASCIIMathML.js
==============
This file contains JavaScript functions to convert ASCII math notation
and (some) LaTeX to Presentation MathML. The conversion is done while the
HTML page loads, and should work with Firefox and other browsers that can
render MathML.
Just add the next line to your HTML page with this file in the same folder:
<script type="text/javascript" src="ASCIIMathML.js"></script>
Version 2.2 Mar 3, 2014.
Latest version at https://github.com/mathjax/asciimathml
If you use it on a webpage, please send the URL to jipsen@chapman.edu
Copyright (c) 2014 Peter Jipsen and other ASCIIMathML.js contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.AsciiMath = void 0;
// or another family (e.g. "arial")
var automathrecognize = false; // writing "amath" on page makes this true
var checkForMathML = true; // check if browser can display MathML
var notifyIfNoMathML = true; // display note at top if no MathML capability
var alertIfNoMathML = false; // show alert box if no MathML capability
var translateOnLoad = true; // set to false to do call translators from js
var translateASCIIMath = true; // false to preserve `..`
var displaystyle = true; // puts limits above and below large operators
var showasciiformulaonhover = true; // helps students learn ASCIIMath
var decimalsign = "."; // if "," then when writing lists or matrices put
//a space after the "," like `(1, 2)` not `(1,2)`
var fixphi = true; //false to return to legacy phi/varphi mapping
// character lists for Mozilla/Netscape fonts
var AMcal = ["\uD835\uDC9C", "\u212C", "\uD835\uDC9E", "\uD835\uDC9F", "\u2130", "\u2131", "\uD835\uDCA2", "\u210B", "\u2110", "\uD835\uDCA5", "\uD835\uDCA6", "\u2112", "\u2133", "\uD835\uDCA9", "\uD835\uDCAA", "\uD835\uDCAB", "\uD835\uDCAC", "\u211B", "\uD835\uDCAE", "\uD835\uDCAF", "\uD835\uDCB0", "\uD835\uDCB1", "\uD835\uDCB2", "\uD835\uDCB3", "\uD835\uDCB4", "\uD835\uDCB5", "\uD835\uDCB6", "\uD835\uDCB7", "\uD835\uDCB8", "\uD835\uDCB9", "\u212F", "\uD835\uDCBB", "\u210A", "\uD835\uDCBD", "\uD835\uDCBE", "\uD835\uDCBF", "\uD835\uDCC0", "\uD835\uDCC1", "\uD835\uDCC2", "\uD835\uDCC3", "\u2134", "\uD835\uDCC5", "\uD835\uDCC6", "\uD835\uDCC7", "\uD835\uDCC8", "\uD835\uDCC9", "\uD835\uDCCA", "\uD835\uDCCB", "\uD835\uDCCC", "\uD835\uDCCD", "\uD835\uDCCE", "\uD835\uDCCF"];
var AMfrk = ["\uD835\uDD04", "\uD835\uDD05", "\u212D", "\uD835\uDD07", "\uD835\uDD08", "\uD835\uDD09", "\uD835\uDD0A", "\u210C", "\u2111", "\uD835\uDD0D", "\uD835\uDD0E", "\uD835\uDD0F", "\uD835\uDD10", "\uD835\uDD11", "\uD835\uDD12", "\uD835\uDD13", "\uD835\uDD14", "\u211C", "\uD835\uDD16", "\uD835\uDD17", "\uD835\uDD18", "\uD835\uDD19", "\uD835\uDD1A", "\uD835\uDD1B", "\uD835\uDD1C", "\u2128", "\uD835\uDD1E", "\uD835\uDD1F", "\uD835\uDD20", "\uD835\uDD21", "\uD835\uDD22", "\uD835\uDD23", "\uD835\uDD24", "\uD835\uDD25", "\uD835\uDD26", "\uD835\uDD27", "\uD835\uDD28", "\uD835\uDD29", "\uD835\uDD2A", "\uD835\uDD2B", "\uD835\uDD2C", "\uD835\uDD2D", "\uD835\uDD2E", "\uD835\uDD2F", "\uD835\uDD30", "\uD835\uDD31", "\uD835\uDD32", "\uD835\uDD33", "\uD835\uDD34", "\uD835\uDD35", "\uD835\uDD36", "\uD835\uDD37"];
var AMbbb = ["\uD835\uDD38", "\uD835\uDD39", "\u2102", "\uD835\uDD3B", "\uD835\uDD3C", "\uD835\uDD3D", "\uD835\uDD3E", "\u210D", "\uD835\uDD40", "\uD835\uDD41", "\uD835\uDD42", "\uD835\uDD43", "\uD835\uDD44", "\u2115", "\uD835\uDD46", "\u2119", "\u211A", "\u211D", "\uD835\uDD4A", "\uD835\uDD4B", "\uD835\uDD4C", "\uD835\uDD4D", "\uD835\uDD4E", "\uD835\uDD4F", "\uD835\uDD50", "\u2124", "\uD835\uDD52", "\uD835\uDD53", "\uD835\uDD54", "\uD835\uDD55", "\uD835\uDD56", "\uD835\uDD57", "\uD835\uDD58", "\uD835\uDD59", "\uD835\uDD5A", "\uD835\uDD5B", "\uD835\uDD5C", "\uD835\uDD5D", "\uD835\uDD5E", "\uD835\uDD5F", "\uD835\uDD60", "\uD835\uDD61", "\uD835\uDD62", "\uD835\uDD63", "\uD835\uDD64", "\uD835\uDD65", "\uD835\uDD66", "\uD835\uDD67", "\uD835\uDD68", "\uD835\uDD69", "\uD835\uDD6A", "\uD835\uDD6B"];
/*let AMcal = [0xEF35,0x212C,0xEF36,0xEF37,0x2130,0x2131,0xEF38,0x210B,0x2110,0xEF39,0xEF3A,0x2112,0x2133,0xEF3B,0xEF3C,0xEF3D,0xEF3E,0x211B,0xEF3F,0xEF40,0xEF41,0xEF42,0xEF43,0xEF44,0xEF45,0xEF46];
let AMfrk = [0xEF5D,0xEF5E,0x212D,0xEF5F,0xEF60,0xEF61,0xEF62,0x210C,0x2111,0xEF63,0xEF64,0xEF65,0xEF66,0xEF67,0xEF68,0xEF69,0xEF6A,0x211C,0xEF6B,0xEF6C,0xEF6D,0xEF6E,0xEF6F,0xEF70,0xEF71,0x2128];
let AMbbb = [0xEF8C,0xEF8D,0x2102,0xEF8E,0xEF8F,0xEF90,0xEF91,0x210D,0xEF92,0xEF93,0xEF94,0xEF95,0xEF96,0x2115,0xEF97,0x2119,0x211A,0x211D,0xEF98,0xEF99,0xEF9A,0xEF9B,0xEF9C,0xEF9D,0xEF9E,0x2124];*/
var CONST = 0, UNARY = 1, BINARY = 2, INFIX = 3, LEFTBRACKET = 4, RIGHTBRACKET = 5, SPACE = 6, UNDEROVER = 7, DEFINITION = 8, LEFTRIGHT = 9, TEXT = 10, BIG = 11, LONG = 12, STRETCHY = 13, MATRIX = 14, UNARYUNDEROVER = 15; // token types
var AMquote = { input: "\"", tag: "mtext", output: "mbox", tex: null, ttype: TEXT };
/** convert an AsciiMath statement to MathML */
var AsciiMath = /** @class */ (function () {
function AsciiMath() {
this.noMathML = false;
this.translated = false;
this.latex = false;
this.AMnames = []; //list of input symbols
this.AMmathml = "http://www.w3.org/1998/Math/MathML";
this.mathcolor = "blue"; // change it to "" (to inherit) or another color
this.mathfontsize = "1em"; // change to e.g. 1.2em for larger math
this.mathfontfamily = "serif"; // change to "" to inherit (works in IE)
this.AMdelimiter1 = "`"; // when hunting through a doc looking for math to translate
this.AMescape1 = "\\\\`"; // can use other characters
this.setStylesheet("#AMMLcloseDiv \{font-size:0.8em padding-top:1em color:#014\}\n#AMMLwarningBox \{position:absolute width:100% top:0 left:0 z-index:200 text-align:center font-size:1em font-weight:bold padding:0.5em 0 0.5em 0 color:#ffc background:#c30\}");
this.initSymbols();
this.init();
}
/** Add a stylesheet, replacing any previous custom stylesheet (adapted from TW) */
AsciiMath.prototype.setStylesheet = function (s) {
var id = "AMMLcustomStyleSheet";
var n = document.getElementById(id);
// if (document.createStyleSheet) { // tbtb
// // Test for IE's non-standard createStyleSheet method
// if (n)
// n.parentNode.removeChild(n);
// // This failed without the
// document.getElementsByTagName("head")[0].insertAdjacentHTML("beforeend", " <style id='" + id + "'>" + s + "</style>"); // tbtb not 'beforeEnd'
// } else {
if (n) {
n.replaceChild(document.createTextNode(s), n.firstChild);
}
else {
n = document.createElement("style");
// n.type = "text/css"; //tbtb
n.id = id;
n.appendChild(document.createTextNode(s));
document.getElementsByTagName("head")[0].appendChild(n);
}
// }
};
AsciiMath.prototype.init = function () {
var msg, warnings = new Array();
if (document.getElementById == null) {
alert("This webpage requires a recent browser such as Mozilla Firefox");
return null;
}
if (checkForMathML && (msg = this.checkMathML()))
warnings.push(msg);
if (warnings.length > 0)
this.displayWarnings(warnings);
if (!this.noMathML)
this.initSymbols();
return true;
};
AsciiMath.prototype.checkMathML = function () {
if (navigator.appName.slice(0, 8) == "Netscape")
if (navigator.appVersion.slice(0, 1) >= "5")
this.noMathML = null;
else
this.noMathML = true;
// else if (navigator.appName.slice(0, 9) == "Microsoft")
// try {
// let ActiveX = new ActiveXObject("MathPlayer.Factory.1");
// noMathML = null;
// } catch (e) {
// noMathML = true;
// }
else if (navigator.appName.slice(0, 5) == "Opera")
if (navigator.appVersion.slice(0, 3) >= "9.5")
this.noMathML = null;
else
this.noMathML = true;
//noMathML = true; //uncomment to check
if (this.noMathML && notifyIfNoMathML) {
var msg = "To view the ASCIIMathML notation use Internet Explorer + MathPlayer or Mozilla Firefox 2.0 or later.";
if (alertIfNoMathML)
alert(msg);
else
return msg;
}
};
AsciiMath.prototype.hideWarning = function () {
var body = document.getElementsByTagName("body")[0];
body.removeChild(document.getElementById('AMMLwarningBox'));
body.onclick = null;
};
AsciiMath.prototype.displayWarnings = function (warnings) {
var i, frag, nd = this.createElementXHTML("div");
var body = document.getElementsByTagName("body")[0];
body.onclick = this.hideWarning;
nd.id = 'AMMLwarningBox';
for (i = 0; i < warnings.length; i++) {
frag = this.createElementXHTML("div");
frag.appendChild(document.createTextNode(warnings[i]));
frag.style.paddingBottom = "1.0em";
nd.appendChild(frag);
}
nd.appendChild(this.createElementXHTML("p"));
nd.appendChild(document.createTextNode("For instructions see the "));
var an = this.createElementXHTML("a");
an.appendChild(document.createTextNode("ASCIIMathML"));
an.setAttribute("href", "http://asciimath.org");
nd.appendChild(an);
nd.appendChild(document.createTextNode(" homepage"));
an = this.createElementXHTML("div");
an.id = 'AMMLcloseDiv';
an.appendChild(document.createTextNode('(click anywhere to close this warning)'));
nd.appendChild(an);
body.insertBefore(nd, body.childNodes[0]);
};
/** Find and translate all math on a page. if spanclassAM is provided then it
* is the tag to look for. Perhaps 'span' is a good value. If it is NOT
* provided, then we will look for AMDelimiter1 (by default a backtick)
*/
AsciiMath.prototype.translate = function (spanclassAM) {
if (!this.translated) { // run this only once
this.translated = true;
var body = document.getElementsByTagName("body")[0];
this.AMprocessNode(body, false, spanclassAM);
}
};
AsciiMath.prototype.createElementXHTML = function (t) {
return document.createElementNS("http://www.w3.org/1999/xhtml", t);
};
AsciiMath.prototype.AMcreateElementMathML = function (t) {
return document.createElementNS(this.AMmathml, t);
};
AsciiMath.prototype.createMmlNode = function (t, frag) {
var node;
node = document.createElementNS(this.AMmathml, t);
if (frag)
node.appendChild(frag);
return node;
};
AsciiMath.prototype.newcommand = function (oldstr, newstr) {
this.AMSymbols.push({ input: oldstr, tag: "mo", output: newstr, tex: null, ttype: DEFINITION });
this.refreshSymbols();
};
AsciiMath.prototype.newsymbol = function (symbolobj) {
this.AMSymbols.push(symbolobj);
this.refreshSymbols();
};
AsciiMath.prototype.compareNames = function (s1, s2) {
if (s1.input > s2.input)
return 1;
else
return -1;
};
AsciiMath.prototype.initSymbols = function () {
var i;
this.loadAMSymbols();
var symlen = this.AMSymbols.length;
for (i = 0; i < symlen; i++) {
if (this.AMSymbols[i].tex) {
this.AMSymbols.push({
input: this.AMSymbols[i].tex,
tex: null,
tag: this.AMSymbols[i].tag, output: this.AMSymbols[i].output, ttype: this.AMSymbols[i].ttype,
acc: (this.AMSymbols[i].acc || false)
});
}
}
this.refreshSymbols();
};
AsciiMath.prototype.refreshSymbols = function () {
this.AMSymbols.sort(this.compareNames);
for (var i = 0; i < this.AMSymbols.length; i++)
this.AMnames[i] = this.AMSymbols[i].input;
};
AsciiMath.prototype.define = function (oldstr, newstr) {
this.AMSymbols.push({ input: oldstr, tag: "mo", output: newstr, tex: null, ttype: DEFINITION });
this.refreshSymbols(); // this may be a problem if many symbols are defined!
};
AsciiMath.prototype.AMremoveCharsAndBlanks = function (str, n) {
//remove n characters and any following blanks
var st;
if (str.charAt(n) == "\\" && str.charAt(n + 1) != "\\" && str.charAt(n + 1) != " ")
st = str.slice(n + 1);
else
st = str.slice(n);
var i; // tbtb must NOT be defined in the for loop, goes out of scope
for (i = 0; i < st.length && st.charCodeAt(i) <= 32; i = i + 1) { }
return st.slice(i); // tbtb ?? this isn't valid TS, not sure what it means in JS
};
AsciiMath.prototype.position = function (arr, str, n) {
// return position >=n where str appears or would be inserted
// assumes arr is sorted
if (n == 0) {
var h = void 0, m = void 0;
n = -1;
h = arr.length;
while (n + 1 < h) {
m = (n + h) >> 1;
if (arr[m] < str)
n = m;
else
h = m;
}
return h;
}
else {
var i = void 0;
for (i = n; i < arr.length && arr[i] < str; i++) { } // stops when it stops
return i; // i=arr.length || arr[i]>=str
}
};
AsciiMath.prototype.AMgetSymbol = function (str) {
//return maximal initial substring of str that appears in names
//return null if there is none
var k = 0; //new pos
var j = 0; //old pos
var mk; //match pos
var st;
var tagst;
var match = "";
var more = true;
for (var i = 1; i <= str.length && more; i++) {
st = str.slice(0, i); //initial substring of length i
j = k;
k = this.position(this.AMnames, st, j);
if (k < this.AMnames.length && str.slice(0, this.AMnames[k].length) == this.AMnames[k]) {
match = this.AMnames[k];
mk = k;
i = match.length;
}
more = k < this.AMnames.length && str.slice(0, this.AMnames[k].length) >= this.AMnames[k];
}
this.AMpreviousSymbol = this.AMcurrentSymbol;
if (match != "") {
this.AMcurrentSymbol = this.AMSymbols[mk].ttype;
return this.AMSymbols[mk];
}
// if str[0] is a digit or - return maxsubstring of digits.digits
this.AMcurrentSymbol = CONST;
k = 1;
st = str.slice(0, 1);
var integ = true;
while ("0" <= st && st <= "9" && k <= str.length) {
st = str.slice(k, k + 1);
k++;
}
if (st == decimalsign) {
st = str.slice(k, k + 1);
if ("0" <= st && st <= "9") {
integ = false;
k++;
while ("0" <= st && st <= "9" && k <= str.length) {
st = str.slice(k, k + 1);
k++;
}
}
}
if ((integ && k > 1) || k > 2) {
st = str.slice(0, k - 1);
tagst = "mn";
}
else {
k = 2;
st = str.slice(0, 1); //take 1 character
tagst = (("A" > st || st > "Z") && ("a" > st || st > "z") ? "mo" : "mi");
}
if (st == "-" && str.charAt(1) !== ' ' && this.AMpreviousSymbol == INFIX) {
this.AMcurrentSymbol = INFIX; //trick "/" into recognizing "-" on second parse
return { input: st, tag: tagst, output: st, tex: null, ttype: UNARY, func: true };
}
return { input: st, tag: tagst, output: st, tex: null, ttype: CONST };
};
AsciiMath.prototype.AMremoveBrackets = function (node) {
var st;
if (!node.hasChildNodes()) {
return;
}
if (node.firstChild.hasChildNodes() && (node.nodeName == "mrow" || node.nodeName == "M:MROW")) {
if (node.firstChild.nextSibling && node.firstChild.nextSibling.nodeName == "mtable") {
return;
}
st = node.firstChild.firstChild.nodeValue;
if (st == "(" || st == "[" || st == "{")
node.removeChild(node.firstChild);
}
if (node.lastChild.hasChildNodes() && (node.nodeName == "mrow" || node.nodeName == "M:MROW")) {
st = node.lastChild.firstChild.nodeValue;
if (st == ")" || st == "]" || st == "}")
node.removeChild(node.lastChild);
}
};
/*Parsing ASCII math expressions with the following grammar
v ::= [A-Za-z] | greek letters | numbers | other constant symbols
u ::= sqrt | text | bb | other unary symbols for font commands
b ::= frac | root | stackrel binary symbols
l ::= ( | [ | { | (: | {: left brackets
r ::= ) | ] | } | :) | :} right brackets
S ::= v | lEr | uS | bSS Simple expression
I ::= S_S | S^S | S_S^S | S Intermediate expression
E ::= IE | I/I Expression
Each terminal symbol is translated into a corresponding mathml node.*/
AsciiMath.prototype.AMparseSexpr = function (str) {
var symbol, node, result, i, st, // rightvert = false,
newFrag = document.createDocumentFragment();
str = this.AMremoveCharsAndBlanks(str, 0);
symbol = this.AMgetSymbol(str); //either a token or a bracket or empty
if (symbol == null || symbol.ttype == RIGHTBRACKET && this.AMnestingDepth > 0) {
return [null, str];
}
if (symbol.ttype == DEFINITION) {
str = symbol.output + this.AMremoveCharsAndBlanks(str, symbol.input.length);
symbol = this.AMgetSymbol(str);
}
switch (symbol.ttype) {
case UNDEROVER:
case CONST:
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
return [this.createMmlNode(symbol.tag, //its a constant
document.createTextNode(symbol.output)), str];
case LEFTBRACKET: //read (expr+)
this.AMnestingDepth++;
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
result = this.AMparseExpr(str, true);
this.AMnestingDepth--;
if (typeof symbol.invisible == "boolean" && symbol.invisible)
node = this.createMmlNode("mrow", result[0]);
else {
node = this.createMmlNode("mo", document.createTextNode(symbol.output));
node = this.createMmlNode("mrow", node);
node.appendChild(result[0]);
}
return [node, result[1]];
case TEXT:
if (symbol != AMquote)
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
if (str.charAt(0) == "{")
i = str.indexOf("}");
else if (str.charAt(0) == "(")
i = str.indexOf(")");
else if (str.charAt(0) == "[")
i = str.indexOf("]");
else if (symbol == AMquote)
i = str.slice(1).indexOf("\"") + 1;
else
i = 0;
if (i == -1)
i = str.length;
st = str.slice(1, i);
if (st.charAt(0) == " ") {
node = this.createMmlNode("mspace");
node.setAttribute("width", "1ex");
newFrag.appendChild(node);
}
newFrag.appendChild(this.createMmlNode(symbol.tag, document.createTextNode(st)));
if (st.charAt(st.length - 1) == " ") {
node = this.createMmlNode("mspace");
node.setAttribute("width", "1ex");
newFrag.appendChild(node);
}
str = this.AMremoveCharsAndBlanks(str, i + 1);
return [this.createMmlNode("mrow", newFrag), str];
case UNARYUNDEROVER:
case UNARY:
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
result = this.AMparseSexpr(str);
if (result[0] == null) {
if (symbol.tag == "mi" || symbol.tag == "mo") {
return [this.createMmlNode(symbol.tag, document.createTextNode(symbol.output)), str];
}
else {
result[0] = this.createMmlNode("mi", "");
}
}
if (typeof symbol.func == "boolean" && symbol.func) { // functions hack
st = str.charAt(0);
if (st == "^" || st == "_" || st == "/" || st == "|" || st == "," ||
(symbol.input.length == 1 && symbol.input.match(/\w/) && st != "(")) {
return [this.createMmlNode(symbol.tag, document.createTextNode(symbol.output)), str];
}
else {
node = this.createMmlNode("mrow", this.createMmlNode(symbol.tag, document.createTextNode(symbol.output)));
node.appendChild(result[0]);
return [node, result[1]];
}
}
this.AMremoveBrackets(result[0]);
if (symbol.input == "sqrt") { // sqrt
return [this.createMmlNode(symbol.tag, result[0]), result[1]];
}
else if (typeof symbol.rewriteleftright != "undefined") { // abs, floor, ceil
node = this.createMmlNode("mrow", this.createMmlNode("mo", document.createTextNode(symbol.rewriteleftright[0])));
node.appendChild(result[0]);
node.appendChild(this.createMmlNode("mo", document.createTextNode(symbol.rewriteleftright[1])));
return [node, result[1]];
}
else if (symbol.input == "cancel") { // cancel
node = this.createMmlNode(symbol.tag, result[0]);
node.setAttribute("notation", "updiagonalstrike");
return [node, result[1]];
}
else if (typeof symbol.acc == "boolean" && symbol.acc) { // accent
node = this.createMmlNode(symbol.tag, result[0]);
var accnode = this.createMmlNode("mo", document.createTextNode(symbol.output));
if (symbol.input == "vec" && ((result[0].nodeName == "mrow" && result[0].childNodes.length == 1
&& result[0].firstChild.firstChild.nodeValue !== null
&& result[0].firstChild.firstChild.nodeValue.length == 1) ||
(result[0].firstChild.nodeValue !== null
&& result[0].firstChild.nodeValue.length == 1))) {
accnode.setAttribute("stretchy", false); //tbtb
}
node.appendChild(accnode);
return [node, result[1]];
}
else { // font change command
if (typeof symbol.codes != "undefined") {
for (i = 0; i < result[0].childNodes.length; i++)
if (result[0].childNodes[i].nodeName == "mi" || result[0].nodeName == "mi") {
st = (result[0].nodeName == "mi" ? result[0].firstChild.nodeValue :
result[0].childNodes[i].firstChild.nodeValue);
var newst = ''; // tbtb should be string
for (var j = 0; j < st.length; j++)
if (st.charCodeAt(j) > 64 && st.charCodeAt(j) < 91)
newst = newst + symbol.codes[st.charCodeAt(j) - 65]; // tbtb newst coerced to string here
else if (st.charCodeAt(j) > 96 && st.charCodeAt(j) < 123)
newst = newst + symbol.codes[st.charCodeAt(j) - 71];
else
newst = newst + st.charAt(j);
if (result[0].nodeName == "mi")
result[0] = this.createMmlNode("mo").
appendChild(document.createTextNode(newst));
else
result[0].replaceChild(this.createMmlNode("mo").
appendChild(document.createTextNode(newst)), result[0].childNodes[i]);
}
}
node = this.createMmlNode(symbol.tag, result[0]);
node.setAttribute(symbol.atname, symbol.atval);
return [node, result[1]];
}
case BINARY:
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
result = this.AMparseSexpr(str);
if (result[0] == null)
return [this.createMmlNode("mo", document.createTextNode(symbol.input)), str];
this.AMremoveBrackets(result[0]);
var result2 = this.AMparseSexpr(result[1]);
if (result2[0] == null)
return [this.createMmlNode("mo", document.createTextNode(symbol.input)), str];
this.AMremoveBrackets(result2[0]);
if (['color', 'class', 'id'].indexOf(symbol.input) >= 0) {
// Get the second argument
if (str.charAt(0) == "{")
i = str.indexOf("}");
else if (str.charAt(0) == "(")
i = str.indexOf(")");
else if (str.charAt(0) == "[")
i = str.indexOf("]");
st = str.slice(1, i);
// Make a mathml node
node = this.createMmlNode(symbol.tag, result2[0]);
// Set the correct attribute
if (symbol.input === "color")
node.setAttribute("mathcolor", st);
else if (symbol.input === "class")
node.setAttribute("class", st);
else if (symbol.input === "id")
node.setAttribute("id", st);
return [node, result2[1]];
}
if (symbol.input == "root" || symbol.output == "stackrel")
newFrag.appendChild(result2[0]);
newFrag.appendChild(result[0]);
if (symbol.input == "frac")
newFrag.appendChild(result2[0]);
return [this.createMmlNode(symbol.tag, newFrag), result2[1]];
case INFIX:
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
return [this.createMmlNode("mo", document.createTextNode(symbol.output)), str];
case SPACE:
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
node = this.createMmlNode("mspace");
node.setAttribute("width", "1ex");
newFrag.appendChild(node);
newFrag.appendChild(this.createMmlNode(symbol.tag, document.createTextNode(symbol.output)));
node = this.createMmlNode("mspace");
node.setAttribute("width", "1ex");
newFrag.appendChild(node);
return [this.createMmlNode("mrow", newFrag), str];
case LEFTRIGHT:
// if (rightvert) return [null,str]; else rightvert = true;
this.AMnestingDepth++;
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
result = this.AMparseExpr(str, false);
this.AMnestingDepth--;
st = "";
if (result[0].lastChild != null)
st = result[0].lastChild.firstChild.nodeValue;
if (st == "|" && str.charAt(0) !== ",") { // its an absolute value subterm
node = this.createMmlNode("mo", document.createTextNode(symbol.output));
node = this.createMmlNode("mrow", node);
node.appendChild(result[0]);
return [node, result[1]];
}
else { // the "|" is a \mid so use unicode 2223 (divides) for spacing
node = this.createMmlNode("mo", document.createTextNode("\u2223"));
node = this.createMmlNode("mrow", node);
return [node, str];
}
default:
//alert("default");
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
return [this.createMmlNode(symbol.tag, //its a constant
document.createTextNode(symbol.output)), str];
}
};
AsciiMath.prototype.AMparseIexpr = function (str) {
var symbol, sym1, sym2, node, result, underover;
str = this.AMremoveCharsAndBlanks(str, 0);
sym1 = this.AMgetSymbol(str);
result = this.AMparseSexpr(str);
node = result[0];
str = result[1];
symbol = this.AMgetSymbol(str);
if (symbol.ttype == INFIX && symbol.input != "/") {
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
// if (symbol.input == "/") result = AMparseIexpr(str); else ...
result = this.AMparseSexpr(str);
if (result[0] == null) // show box in place of missing argument
result[0] = this.createMmlNode("mo", document.createTextNode("\u25A1"));
else
this.AMremoveBrackets(result[0]);
str = result[1];
// if (symbol.input == "/") AMremoveBrackets(node);
underover = (sym1.ttype == UNDEROVER || sym1.ttype == UNARYUNDEROVER);
if (symbol.input == "_") {
sym2 = this.AMgetSymbol(str);
if (sym2.input == "^") {
str = this.AMremoveCharsAndBlanks(str, sym2.input.length);
var res2 = this.AMparseSexpr(str);
this.AMremoveBrackets(res2[0]);
str = res2[1];
node = this.createMmlNode((underover ? "munderover" : "msubsup"), node);
node.appendChild(result[0]);
node.appendChild(res2[0]);
node = this.createMmlNode("mrow", node); // so sum does not stretch
}
else {
node = this.createMmlNode((underover ? "munder" : "msub"), node);
node.appendChild(result[0]);
}
}
else if (symbol.input == "^" && underover) {
node = this.createMmlNode("mover", node);
node.appendChild(result[0]);
}
else {
node = this.createMmlNode(symbol.tag, node);
node.appendChild(result[0]);
}
if (typeof sym1.func != 'undefined' && sym1.func) {
sym2 = this.AMgetSymbol(str);
if (sym2.ttype != INFIX && sym2.ttype != RIGHTBRACKET &&
(sym1.input.length > 1 || sym2.ttype == LEFTBRACKET)) {
result = this.AMparseIexpr(str);
node = this.createMmlNode("mrow", node);
node.appendChild(result[0]);
str = result[1];
}
}
}
return [node, str];
};
AsciiMath.prototype.AMparseExpr = function (str, rightbracket) {
var symbol, node, result, i, newFrag = document.createDocumentFragment();
do {
str = this.AMremoveCharsAndBlanks(str, 0);
result = this.AMparseIexpr(str);
node = result[0];
str = result[1];
symbol = this.AMgetSymbol(str);
if (symbol.ttype == INFIX && symbol.input == "/") {
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
result = this.AMparseIexpr(str);
if (result[0] == null) // show box in place of missing argument
result[0] = this.createMmlNode("mo", document.createTextNode("\u25A1"));
else
this.AMremoveBrackets(result[0]);
str = result[1];
this.AMremoveBrackets(node);
node = this.createMmlNode(symbol.tag, node);
node.appendChild(result[0]);
newFrag.appendChild(node);
symbol = this.AMgetSymbol(str);
}
else if (node != undefined)
newFrag.appendChild(node);
} while ((symbol.ttype != RIGHTBRACKET &&
(symbol.ttype != LEFTRIGHT || rightbracket)
|| this.AMnestingDepth == 0) && symbol != null && symbol.output != "");
if (symbol.ttype == RIGHTBRACKET || symbol.ttype == LEFTRIGHT) {
// if (AMnestingDepth > 0) AMnestingDepth--;
var len = newFrag.childNodes.length;
if (len > 0 && newFrag.childNodes[len - 1].nodeName == "mrow"
&& newFrag.childNodes[len - 1].lastChild
&& newFrag.childNodes[len - 1].lastChild.firstChild) { //matrix
//removed to allow row vectors: //&& len>1 &&
//newFrag.childNodes[len-2].nodeName == "mo" &&
//newFrag.childNodes[len-2].firstChild.nodeValue == ","
var right = newFrag.childNodes[len - 1].lastChild.firstChild.nodeValue;
if (right == ")" || right == "]") {
var left = newFrag.childNodes[len - 1].firstChild.firstChild.nodeValue;
if (left == "(" && right == ")" && symbol.output != "}" ||
left == "[" && right == "]") {
var pos = []; // positions of commas
var matrix = true;
var m = newFrag.childNodes.length;
for (i = 0; matrix && i < m; i = i + 2) {
pos[i] = [];
node = newFrag.childNodes[i];
if (matrix)
matrix = node.nodeName == "mrow" &&
(i == m - 1 || node.nextSibling.nodeName == "mo" &&
node.nextSibling.firstChild.nodeValue == ",") &&
node.firstChild.firstChild &&
node.firstChild.firstChild.nodeValue == left &&
node.lastChild.firstChild &&
node.lastChild.firstChild.nodeValue == right;
if (matrix)
for (var j = 0; j < node.childNodes.length; j++)
if (node.childNodes[j].firstChild.nodeValue == ",")
pos[i][pos[i].length] = j;
if (matrix && i > 1)
matrix = pos[i].length == pos[i - 2].length;
}
matrix = matrix && (pos.length > 1 || pos[0].length > 0);
var columnlines = [];
if (matrix) {
var row = void 0, frag = void 0, n = void 0, k = void 0, table = document.createDocumentFragment();
for (i = 0; i < m; i = i + 2) {
row = document.createDocumentFragment();
frag = document.createDocumentFragment();
node = newFrag.firstChild; // <mrow>(-,-,...,-,-)</mrow>
n = node.childNodes.length;
k = 0;
node.removeChild(node.firstChild); //remove (
for (var j = 1; j < n - 1; j++) {
if (typeof pos[i][k] != "undefined" && j == pos[i][k]) {
node.removeChild(node.firstChild); //remove ,
if (node.firstChild.nodeName == "mrow" && node.firstChild.childNodes.length == 1 &&
node.firstChild.firstChild.firstChild.nodeValue == "\u2223") {
//is columnline marker - skip it
if (i == 0) {
columnlines.push("solid");
}
node.removeChild(node.firstChild); //remove mrow
node.removeChild(node.firstChild); //remove ,
j += 2;
k++;
}
else if (i == 0) {
columnlines.push("none");
}
row.appendChild(this.createMmlNode("mtd", frag));
k++;
}
else
frag.appendChild(node.firstChild);
}
row.appendChild(this.createMmlNode("mtd", frag));
if (i == 0) {
columnlines.push("none");
}
if (newFrag.childNodes.length > 2) {
newFrag.removeChild(newFrag.firstChild); //remove <mrow>)</mrow>
newFrag.removeChild(newFrag.firstChild); //remove <mo>,</mo>
}
table.appendChild(this.createMmlNode("mtr", row));
}
node = this.createMmlNode("mtable", table);
node.setAttribute("columnlines", columnlines.join(" "));
if (typeof symbol.invisible == "boolean" && symbol.invisible)
node.setAttribute("columnalign", "left");
newFrag.replaceChild(node, newFrag.firstChild);
}
}
}
}
str = this.AMremoveCharsAndBlanks(str, symbol.input.length);
if (typeof symbol.invisible != "boolean" || !symbol.invisible) {
node = this.createMmlNode("mo", document.createTextNode(symbol.output));
newFrag.appendChild(node);
}
}
return [newFrag, str];
};
/** Convert a single string to an HTML Element ready for insertion.
* let a = new AsciiMath()
* let eqn = 'sum_(i=1)^n i^3=((n(n+1))/2)^2'
* document.getElementById('insertMathHere').appendChild(a.parseMath(eqn))
*/
AsciiMath.prototype.parseMath = function (str) {
this.AMnestingDepth = 0;
//some basic cleanup for dealing with stuff editors like TinyMCE adds
str = str.replace(/ /g, "");
str = str.replace(/>/g, ">");
str = str.replace(/</g, "<");
var frag = this.AMparseExpr(str.replace(/^\s+/g, ""), false)[0];
var node = this.createMmlNode("mstyle", frag);
if (this.mathcolor != "")
node.setAttribute("mathcolor", this.mathcolor);
if (this.mathfontsize != "") {
node.setAttribute("fontsize", this.mathfontsize);
node.setAttribute("mathsize", this.mathfontsize);
}
if (this.mathfontfamily != "") {
node.setAttribute("fontfamily", this.mathfontfamily);
node.setAttribute("mathvariant", this.mathfontfamily);
}
if (displaystyle)
node.setAttribute("displaystyle", "true");
node = this.createMmlNode("math", node);
if (showasciiformulaonhover) //fixed by djhsu so newline
node.setAttribute("title", str.replace(/\s+/g, " ")); //does not show in Gecko
return node;
};
AsciiMath.prototype.strarr2docFrag = function (arr, linebreaks) {
var newFrag = document.createDocumentFragment();
var expr = false;
for (var i = 0; i < arr.length; i++) {
if (expr)
newFrag.appendChild(this.parseMath(arr[i]));
else {
var arri = (linebreaks ? arr[i].split("\n\n") : [arr[i]]);
newFrag.appendChild(this.createElementXHTML("span").
appendChild(document.createTextNode(arri[0])));
for (var j = 1; j < arri.length; j++) {
newFrag.appendChild(this.createElementXHTML("p"));
newFrag.appendChild(this.createElementXHTML("span").
appendChild(document.createTextNode(arri[j])));
}
}
expr = !expr;
}
return newFrag;
};
AsciiMath.prototype.AMautomathrec = function (str) {
//formula is a space (or start of str) followed by a maximal sequence of *two* or more tokens, possibly separated by runs of digits and/or space.
//tokens are single letters (except a, A, I) and ASCIIMathML tokens
var texcommand = "\\\\[a-zA-Z]+|\\\\\\s|";
var ambigAMtoken = "\\b(?:oo|lim|ln|int|oint|del|grad|aleph|prod|prop|sinh|cosh|tanh|cos|sec|pi|tt|fr|sf|sube|supe|sub|sup|det|mod|gcd|lcm|min|max|vec|ddot|ul|chi|eta|nu|mu)(?![a-z])|";
var englishAMtoken = "\\b(?:sum|ox|log|sin|tan|dim|hat|bar|dot)(?![a-z])|";
var secondenglishAMtoken = "|\\bI\\b|\\bin\\b|\\btext\\b"; // took if and or not out
var simpleAMtoken = "NN|ZZ|QQ|RR|CC|TT|AA|EE|sqrt|dx|dy|dz|dt|xx|vv|uu|nn|bb|cc|csc|cot|alpha|beta|delta|Delta|epsilon|gamma|Gamma|kappa|lambda|Lambda|omega|phi|Phi|Pi|psi|Psi|rho|sigma|Sigma|tau|theta|Theta|xi|Xi|zeta"; // uuu nnn?
var letter = "[a-zA-HJ-Z](?=(?:[^a-zA-Z]|$|" + ambigAMtoken + englishAMtoken + simpleAMtoken + "))|";
var token = letter + texcommand + "\\d+|[-()[\\]{}+=*&^_%\\\@/<>,\\|!:;'~]|\\.(?!(?:\x20|$))|" + ambigAMtoken + englishAMtoken + simpleAMtoken;
var re = new RegExp("(^|\\s)(((" + token + ")\\s?)((" + token + secondenglishAMtoken + ")\\s?)+)([,.?]?(?=\\s|$))", "g");
str = str.replace(re, " `$2`$7");
var arr = str.split(this.AMdelimiter1);
var re1 = new RegExp("(^|\\s)([b-zB-HJ-Z+*<>]|" + texcommand + ambigAMtoken + simpleAMtoken + ")(\\s|\\n|$)", "g");
var re2 = new RegExp("(^|\\s)([a-z]|" + texcommand + ambigAMtoken + simpleAMtoken + ")([,.])", "g"); // removed |\d+ for now
var i;
for (i = 0; i < arr.length; i++) //single nonenglish tokens
if (i % 2 == 0) {
arr[i] = arr[i].replace(re1, " `$2`$3");
arr[i] = arr[i].replace(re2, " `$2`$3");
arr[i] = arr[i].replace(/([{}[\]])/, "`$1`");
}
str = arr.join(this.AMdelimiter1);
str = str.replace(/((^|\s)\([a-zA-Z]{2,}.*?)\)`/g, "$1`)"); //fix parentheses
str = str.replace(/`(\((a\s|in\s))(.*?[a-zA-Z]{2,}\))/g, "$1`$3"); //fix parentheses
str = str.replace(/\sin`/g, "` in");
str = str.replace(/`(\(\w\)[,.]?(\s|\n|$))/g, "$1`");
str = str.replace(/`([0-9.]+|e.g|i.e)`(\.?)/gi, "$1$2");
str = str.replace(/`([0-9.]+:)`/g, "$1");
return str;
};
AsciiMath.prototype.processNodeR = function (n, linebreaks) {
var mtch, str, arr, frg, i;
if (n.childNodes.length == 0) {
if ((n.nodeType != 8 || linebreaks) &&
n.parentNode.nodeName != "form" && n.parentNode.nodeName != "FORM" &&
n.parentNode.nodeName != "textarea" && n.parentNode.nodeName != "TEXTAREA"
/*&& n.parentNode.nodeName!="pre" && n.parentNode.nodeName!="PRE"*/ ) {
str = n.nodeValue;
if (!(str == null)) {
str = str.replace(/\r\n\r\n/g, "\n\n");
str = str.replace(/\x20+/g, " ");
str = str.replace(/\s*\r\n/g, " ");
if (this.latex) {
// DELIMITERS:
mtch = (str.indexOf("\$") == -1 ? false : true);
str = str.replace(/([^\\])\$/g, "$1 \$");
str = str.replace(/^\$/, " \$"); // in case \$ at start of string
arr = str.split(" \$");
for (i = 0; i < arr.length; i++)
arr[i] = arr[i].replace(/\\\$/g, "\$");
}
else {
mtch = false;
str = str.replace(new RegExp(this.AMescape1, "g"), function () { mtch = true; return "AMescape1"; });
str = str.replace(/\\?end{?a?math}?/i, function () { automathrecognize = false; mtch = true; return ""; });
str = str.replace(/amath\b|\\begin{a?math}/i, function () { automathrecognize = true; mtch = true; return ""; });
arr = str.split(this.AMdelimiter1);
if (automathrecognize)
for (i = 0; i < arr.length; i++)
if (i % 2 == 0)
arr[i] = this.AMautomathrec(arr[i]);
str = arr.join(this.AMdelimiter1);
arr = str.split(this.AMdelimiter1);
for (i = 0; i < arr.length; i++) // this is a problem ************
arr[i] = arr[i].replace(/AMescape1/g, this.AMdelimiter1);
}
if (arr.length > 1 || mtch) {
if (!this.noMathML) {
frg = this.strarr2docFrag(arr, n.nodeType == 8);
var len = frg.childNodes.length;
n.parentNode.replaceChild(frg, n);
return len - 1;
}
else
return 0;
}
}
}
else
return 0;
}
else if (n.nodeName != "math") {
for (i = 0; i < n.childNodes.length; i++)
i += this.processNodeR(n.childNodes[i], linebreaks);
}
return 0;
};
/** hunt through a document and translate every math element.
* if spanclassAM is provided, then it is the <tag> that holds math (perhaps 'span'?)
* otherwise we go looking for AMdelimiter
*/
AsciiMath.prototype.AMprocessNode = function (n, linebreaks, spanclassAM) {
if (spanclassAM != null) {
var frag = document.getElementsByTagName(spanclassAM);
for (var i = 0; i < frag.length; i++)
if (frag[i].className == "AM")
this.processNodeR(frag[i], linebreaks);
}
else {
var st = void 0;
try {
st = n.innerHTML; // look for AMdelimiter on page
}
catch (err) { }
//alert(st)
if (st == null || /amath\b|\\begin{a?math}/i.test(st) ||
st.indexOf(this.AMdelimiter1 + " ") != -1 || st.slice(-1) == this.AMdelimiter1 ||
st.indexOf(this.AMdelimiter1 + "<") != -1 || st.indexOf(this.AMdelimiter1 + "\n") != -1) {
this.processNodeR(n, linebreaks);
}
}
};
/** load the parsing table. Needs to be reloaded when fixPHI is changed. */
AsciiMath.prototype.loadAMSymbols = function () {
this.AMSymbols = [
//some greek symbols
{ input: "alpha", tag: "mi", output: "\u03B1", tex: null, ttype: CONST },
{ input: "beta", tag: "mi", output: "\u03B2", tex: null, ttype: CONST },
{ input: "chi", tag: "mi", output: "\u03C7", tex: null, ttype: CONST },
{ input: "delta", tag: "mi", output: "\u03B4", tex: null, ttype: CONST },
{ input: "Delta", tag: "mo", output: "\u0394", tex: null, ttype: CONST },
{ input: "epsi", tag: "mi", output: "\u03B5", tex: "epsilon", ttype: CONST },
{ input: "varepsilon", tag: "mi", output: "\u025B", tex: null, ttype: CONST },
{ input: "eta", tag: "mi", output: "\u03B7", tex: null, ttype: CONST },
{ input: "gamma", tag: "mi", output: "\u03B3", tex: null, ttype: CONST },
{ input: "Gamma", tag: "mo", output: "\u0393", tex: null, ttype: CONST },
{ input: "iota", tag: "mi", output: "\u03B9", tex: null, ttype: CONST },
{ input: "kappa", tag: "mi", output: "\u03BA", tex: null, ttype: CONST },
{ input: "lambda", tag: "mi", output: "\u03BB", tex: null, ttype: CONST },
{ input: "Lambda", tag: "mo", output: "\u039B", tex: null, ttype: CONST },
{ input: "lamda", tag: "mi", output: "\u03BB", tex: null, ttype: CONST },
{ input: "Lamda", tag: "mo", output: "\u039B", tex: null, ttype: CONST },
{ input: "mu", tag: "mi", output: "\u03BC", tex: null, ttype: CONST },
{ input: "nu", tag: "mi", output: "\u03BD", tex: null, ttype: CONST },
{ input: "omega", tag: "mi", output: "\u03C9", tex: null, ttype: CONST },
{ input: "Omega", tag: "mo", output: "\u03A9", tex: null, ttype: CONST },
{ input: "phi", tag: "mi", output: fixphi ? "\u03D5" : "\u03C6", tex: null, ttype: CONST },
{ input: "varphi", tag: "mi", output: fixphi ? "\u03C6" : "\u03D5", tex: null, ttype: CONST },
{ input: "Phi", tag: "mo", output: "\u03A6", tex: null, ttype: CONST },
{ input: "pi", tag: "mi", output: "\u03C0", tex: null, ttype: CONST },
{ input: "Pi", tag: "mo", output: "\u03A0", tex: null, ttype: CONST },
{ input: "psi", tag: "mi", output: "\u03C8", tex: null, ttype: CONST },
{ input: "Psi", tag: "mi", output: "\u03A8", tex: null, ttype: CONST },
{ input: "rho", tag: "mi", output: "\u03C1", tex: null, ttype: CONST },
{ input: "sigma", tag: "mi", output: "\u03C3", tex: null, ttype: CONST },
{ input: "Sigma", tag: "mo", output: "\u03A3", tex: null, ttype: CONST },
{ input: "tau", tag: "mi", output: "\u03C4", tex: null, ttype: CONST },
{ input: "theta", tag: "mi", output: "\u03B8", tex: null, ttype: CONST },
{ input: "vartheta", tag: "mi", output: "\u03D1", tex: null, ttype: CONST },
{ input: "Theta", tag: "mo", output: "\u0398", tex: null, ttype: CONST },
{ input: "upsilon", tag: "mi", output: "\u03C5", tex: null, ttype: CONST },
{ input: "xi", tag: "mi", output: "\u03BE", tex: null, ttype: CONST },
{ input: "Xi", tag: "mo", output: "\u039E", tex: null, ttype: CONST },
{ input: "zeta", tag: "mi", output: "\u03B6", tex: null, ttype: CONST },
//binary operation symbols
//{input:"-", tag:"mo", output:"\u0096", tex:null, ttype:CONST},
{ input: "*", tag: "mo", output: "\u22C5", tex: "cdot", ttype: CONST },
{ input: "**", tag: "mo", output: "\u2217", tex: "ast", ttype: CONST },
{ input: "***", tag: "mo", output: "\u22C6", tex: "star", ttype: CONST },
{ input: "//", tag: "mo", output: "/", tex: null, ttype: CONST },
{ input: "\\\\", tag: "mo", output: "\\", tex: "backslash", ttype: CONST },
{ input: "setminus", tag: "mo", output: "\\", tex: null, ttype: CONST },
{ input: "xx", tag: "mo", output: "\u00D7", tex: "times", ttype: CONST },
{ input: "|><", tag: "mo", output: "\u22C9", tex: "ltimes", ttype: CONST },
{ input: "><|", tag: "mo", output: "\u22CA", tex: "rtimes", ttype: CONST },
{ input: "|><|", tag: "mo", output: "\u22C8", tex: "bowtie", ttype: CONST },
{ input: "-:", tag: "mo", output: "\u00F7", tex: "div", ttype: CONST },
{ input: "divide", tag: "mo", output: "-:", tex: null, ttype: DEFINITION },
{ input: "@", tag: "mo", output: "\u2218", tex: "circ", ttype: CONST },
{ input: "o+", tag: "mo", output: "\u2295", tex: "oplus", ttype: CONST },
{ input: "ox", tag: "mo", output: "\u2297", tex: "otimes", ttype: CONST },
{ input: "o.", tag: "mo", output: "\u2299", /*amparsei*/ tex: "odot", ttype: CONST },
{ input: "sum", tag: "mo", output: "\u2211", tex: null, ttype: UNDEROVER },
{ input: "prod", tag: "mo", output: "\u220F", tex: null, ttype: UNDEROVER },
{ input: "^^", tag: "mo", output: "\u2227", tex: "wedge", ttype: CONST },
{ input: "^^^", tag: "mo", output: "\u22C0", tex: "bigwedge", ttype: UNDEROVER },
{ input: "vv", tag: "mo", output: "\u2228", tex: "vee", ttype: CONST },
{ input: "vvv", tag: "mo", output: "\u22C1", tex: "bigvee", ttype: UNDEROVER },
{ input: "nn", tag: "mo", output: "\u2229", tex: "cap", ttype: CONST },
{ input: "nnn", tag: "mo", output: "\u22C2", tex: "bigcap", ttype: UNDEROVER },
{ input: "uu", tag: "mo", output: "\u222A", tex: "cup", ttype: CONST },
{ input: "uuu", tag: "mo", output: "\u22C3", tex: "bigcup", ttype: UNDEROVER },
//binary relation symbols
{ input: "!=", tag: "mo", output: "\u2260", tex: "ne", ttype: CONST },
{ input: ":=", tag: "mo", output: ":=", tex: null, ttype: CONST },
{ input: "lt", tag: "mo", output: "<", tex: null, ttype: CONST },
{ input: "<=", tag: "mo", output: "\u2264", tex: "le", ttype: CONST },