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mathjax/unpacked/extensions/TeX/noErrors.js

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/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*************************************************************
*
* MathJax/extensions/TeX/noErrors.js
*
* Prevents the TeX error messages from being displayed and shows the
* original TeX code instead. You can configure whether the dollar signs
* are shown or not for in-line math, and whether to put all the TeX on
* one line or use multiple-lines.
*
* To configure this extension, use
*
* MathJax.Hub.Config({
* TeX: {
* noErrors: {
* inlineDelimiters: ["",""], // or ["$","$"] or ["\\(","\\)"]
* multiLine: true, // false for TeX on all one line
* style: {
* "font-size": "90%",
* "text-align": "left",
* "color": "black",
* "padding": "1px 3px",
* "border": "1px solid"
* // add any additional CSS styles that you want
* // (be sure there is no extra comma at the end of the last item)
* }
* }
* }
* });
*
* Display-style math is always shown in multi-line format, and without
* delimiters, as it will already be set off in its own centered
* paragraph, like standard display mathematics.
*
* The default settings place the invalid TeX in a multi-line box with a
* black border. If you want it to look as though the TeX is just part of
* the paragraph, use
*
* MathJax.Hub.Config({
* TeX: {
* noErrors: {
* inlineDelimiters: ["$","$"], // or ["",""] or ["\\(","\\)"]
* multiLine: false,
* style: {
* "font-size": "normal",
* "border": ""
* }
* }
* }
* });
*
* You may also wish to set the font family, as the default is "serif"
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2009-2018 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.
*/
(function (HUB,HTML) {
var VERSION = "2.7.4";
var CONFIG = HUB.CombineConfig("TeX.noErrors",{
disabled: false, // set to true to return to original error messages
multiLine: true,
inlineDelimiters: ["",""], // or use ["$","$"] or ["\\(","\\)"]
style: {
"font-size": "90%",
"text-align": "left",
"color": "black",
"padding": "1px 3px",
"border": "1px solid"
}
});
var NBSP = "\u00A0";
//
// The configuration defaults, augmented by the user settings
//
MathJax.Extension["TeX/noErrors"] = {
version: VERSION,
config: CONFIG
};
HUB.Register.StartupHook("TeX Jax Ready",function () {
var FORMAT = MathJax.InputJax.TeX.formatError;
MathJax.InputJax.TeX.Augment({
//
// Make error messages be the original TeX code
// Mark them as errors and multi-line or not, and for
// multi-line TeX, make spaces non-breakable (to get formatting right)
//
formatError: function (err,math,displaystyle,script) {
if (CONFIG.disabled) {return FORMAT.apply(this,arguments)}
var message = err.message.replace(/\n.*/,"");
HUB.signal.Post(["TeX Jax - parse error",message,math,displaystyle,script]);
var delim = CONFIG.inlineDelimiters;
var multiLine = (displaystyle || CONFIG.multiLine);
if (!displaystyle) {math = delim[0] + math + delim[1]}
if (multiLine) {math = math.replace(/ /g,NBSP)} else {math = math.replace(/\n/g," ")}
return MathJax.ElementJax.mml.merror(math).With({isError:true, multiLine: multiLine});
}
});
});
/*******************************************************************
*
* Fix HTML-CSS output
*/
HUB.Register.StartupHook("HTML-CSS Jax Config",function () {
HUB.Config({
"HTML-CSS": {
styles: {
".MathJax .noError": HUB.Insert({
"vertical-align": (HUB.Browser.isMSIE && CONFIG.multiLine ? "-2px" : "")
},CONFIG.style)
}
}
});
});
HUB.Register.StartupHook("HTML-CSS Jax Ready",function () {
var MML = MathJax.ElementJax.mml;
var HTMLCSS = MathJax.OutputJax["HTML-CSS"];
var MATH = MML.math.prototype.toHTML,
MERROR = MML.merror.prototype.toHTML;
//
// Override math toHTML routine so that error messages
// don't have the clipping and other unneeded overhead
//
MML.math.Augment({
toHTML: function (span,node) {
var data = this.data[0];
if (data && data.data[0] && data.data[0].isError) {
span.style.fontSize = "";
span = this.HTMLcreateSpan(span);
span.bbox = data.data[0].toHTML(span).bbox;
} else {
span = MATH.apply(this,arguments);
}
return span;
}
});
//
// Override merror toHTML routine so that it puts out the
// TeX code in an inline-block with line breaks as in the original
//
MML.merror.Augment({
toHTML: function (span) {
if (!this.isError) {return MERROR.apply(this,arguments)}
span = this.HTMLcreateSpan(span); span.className = "noError"
if (this.multiLine) {span.style.display = "inline-block"}
var text = this.data[0].data[0].data.join("").split(/\n/);
for (var i = 0, m = text.length; i < m; i++) {
HTMLCSS.addText(span,text[i]);
if (i !== m-1) {HTMLCSS.addElement(span,"br",{isMathJax:true})}
}
var HD = HTMLCSS.getHD(span.parentNode), W = HTMLCSS.getW(span.parentNode);
if (m > 1) {
var H = (HD.h + HD.d)/2, x = HTMLCSS.TeX.x_height/2;
span.parentNode.style.verticalAlign = HTMLCSS.Em(HD.d+(x-H));
HD.h = x + H; HD.d = H - x;
}
span.bbox = {h: HD.h, d: HD.d, w: W, lw: 0, rw: W};
return span;
}
});
});
/*******************************************************************
*
* Fix SVG output
*/
HUB.Register.StartupHook("SVG Jax Config",function () {
HUB.Config({
"SVG": {
styles: {
".MathJax_SVG .noError": HUB.Insert({
"vertical-align": (HUB.Browser.isMSIE && CONFIG.multiLine ? "-2px" : "")
},CONFIG.style)
}
}
});
});
HUB.Register.StartupHook("SVG Jax Ready",function () {
var MML = MathJax.ElementJax.mml;
var MATH = MML.math.prototype.toSVG,
MERROR = MML.merror.prototype.toSVG;
//
// Override math toSVG routine so that error messages
// don't have the clipping and other unneeded overhead
//
MML.math.Augment({
toSVG: function (span,node) {
var data = this.data[0];
if (data && data.data[0] && data.data[0].isError)
{span = data.data[0].toSVG(span)} else {span = MATH.apply(this,arguments)}
return span;
}
});
//
// Override merror toSVG routine so that it puts out the
// TeX code in an inline-block with line breaks as in the original
//
MML.merror.Augment({
toSVG: function (span) {
if (!this.isError || this.Parent().type !== "math") {return MERROR.apply(this,arguments)}
span = HTML.addElement(span,"span",{className: "noError", isMathJax:true});
if (this.multiLine) {span.style.display = "inline-block"}
var text = this.data[0].data[0].data.join("").split(/\n/);
for (var i = 0, m = text.length; i < m; i++) {
HTML.addText(span,text[i]);
if (i !== m-1) {HTML.addElement(span,"br",{isMathJax:true})}
}
if (m > 1) {
var H = span.offsetHeight/2;
span.style.verticalAlign = (-H+(H/m))+"px";
}
return span;
}
});
});
/*******************************************************************
*
* Fix NativeMML output
*/
HUB.Register.StartupHook("NativeMML Jax Ready",function () {
var MML = MathJax.ElementJax.mml;
var CONFIG = MathJax.Extension["TeX/noErrors"].config;
var MATH = MML.math.prototype.toNativeMML,
MERROR = MML.merror.prototype.toNativeMML;
//
// Override math toNativeMML routine so that error messages
// don't get placed inside math tags.
//
MML.math.Augment({
toNativeMML: function (span) {
var data = this.data[0];
if (data && data.data[0] && data.data[0].isError)
{span = data.data[0].toNativeMML(span)} else {span = MATH.apply(this,arguments)}
return span;
}
});
//
// Override merror toNativeMML routine so that it puts out the
// TeX code in an inline-block with line breaks as in the original
//
MML.merror.Augment({
toNativeMML: function (span) {
if (!this.isError) {return MERROR.apply(this,arguments)}
span = span.appendChild(document.createElement("span"));
var text = this.data[0].data[0].data.join("").split(/\n/);
for (var i = 0, m = text.length; i < m; i++) {
span.appendChild(document.createTextNode(text[i]));
if (i !== m-1) {span.appendChild(document.createElement("br"))}
}
if (this.multiLine) {
span.style.display = "inline-block";
if (m > 1) {span.style.verticalAlign = "middle"}
}
for (var id in CONFIG.style) {if (CONFIG.style.hasOwnProperty(id)) {
var ID = id.replace(/-./g,function (c) {return c.charAt(1).toUpperCase()});
span.style[ID] = CONFIG.style[id];
}}
return span;
}
});
});
/*******************************************************************
*
* Fix PreviewHTML output
*/
HUB.Register.StartupHook("PreviewHTML Jax Config",function () {
HUB.Config({
PreviewHTML: {
styles: {
".MathJax_PHTML .noError": HUB.Insert({
"vertical-align": (HUB.Browser.isMSIE && CONFIG.multiLine ? "-2px" : "")
},CONFIG.style)
}
}
});
});
HUB.Register.StartupHook("PreviewHTML Jax Ready",function () {
var MML = MathJax.ElementJax.mml;
var HTML = MathJax.HTML;
var MERROR = MML.merror.prototype.toPreviewHTML;
//
// Override merror toPreviewHTML routine so that it puts out the
// TeX code in an inline-block with line breaks as in the original
//
MML.merror.Augment({
toPreviewHTML: function (span) {
if (!this.isError) return MERROR.apply(this,arguments);
span = this.PHTMLcreateSpan(span); span.className = "noError"
if (this.multiLine) span.style.display = "inline-block";
var text = this.data[0].data[0].data.join("").split(/\n/);
for (var i = 0, m = text.length; i < m; i++) {
HTML.addText(span,text[i]);
if (i !== m-1) {HTML.addElement(span,"br",{isMathJax:true})}
}
return span;
}
});
});
/*******************************************************************
*
* Fix CommonHTML output
*/
HUB.Register.StartupHook("CommonHTML Jax Config",function () {
HUB.Config({
CommonHTML: {
styles: {
".mjx-chtml .mjx-noError": HUB.Insert({
"line-height": 1.2,
"vertical-align": (HUB.Browser.isMSIE && CONFIG.multiLine ? "-2px" : "")
},CONFIG.style)
}
}
});
});
HUB.Register.StartupHook("CommonHTML Jax Ready",function () {
var MML = MathJax.ElementJax.mml;
var CHTML = MathJax.OutputJax.CommonHTML;
var HTML = MathJax.HTML;
var MERROR = MML.merror.prototype.toCommonHTML;
//
// Override merror toCommonHTML routine so that it puts out the
// TeX code in an inline-block with line breaks as in the original
//
MML.merror.Augment({
toCommonHTML: function (node) {
if (!this.isError) return MERROR.apply(this,arguments);
node = CHTML.addElement(node,"mjx-noError");
var text = this.data[0].data[0].data.join("").split(/\n/);
for (var i = 0, m = text.length; i < m; i++) {
HTML.addText(node,text[i]);
if (i !== m-1) {CHTML.addElement(node,"br",{isMathJax:true})}
}
var bbox = this.CHTML = CHTML.BBOX.zero();
bbox.w = (node.offsetWidth)/CHTML.em;
if (m > 1) {
var H2 = 1.2*m/2;
bbox.h = H2+.25; bbox.d = H2-.25;
node.style.verticalAlign = CHTML.Em(.45-H2);
} else {
bbox.h = 1; bbox.d = .2 + 2/CHTML.em;
}
return node;
}
});
});
/*******************************************************************/
HUB.Startup.signal.Post("TeX noErrors Ready");
})(MathJax.Hub,MathJax.HTML);
MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/noErrors.js");
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