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307 lines
10 KiB
JavaScript
307 lines
10 KiB
JavaScript
/*************************************************************
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*
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* MathJax/extensions/TeX/noErrors.js
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*
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* Prevents the TeX error messages from being displayed and shows the
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* original TeX code instead. You can configure whether the dollar signs
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* are shown or not for in-line math, and whether to put all the TeX on
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* one line or use multiple-lines.
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*
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* To configure this extension, use
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*
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* MathJax.Hub.Config({
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* TeX: {
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* noErrors: {
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* inlineDelimiters: ["",""], // or ["$","$"] or ["\\(","\\)"]
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* multiLine: true, // false for TeX on all one line
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* style: {
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* "font-size": "90%",
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* "text-align": "left",
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* "color": "black",
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* "padding": "1px 3px",
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* "border": "1px solid"
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* // add any additional CSS styles that you want
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* // (be sure there is no extra comma at the end of the last item)
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* }
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* }
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* }
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* });
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*
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* Display-style math is always shown in multi-line format, and without
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* delimiters, as it will already be set off in its own centered
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* paragraph, like standard display mathematics.
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*
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* The default settings place the invalid TeX in a multi-line box with a
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* black border. If you want it to look as though the TeX is just part of
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* the paragraph, use
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*
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* MathJax.Hub.Config({
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* TeX: {
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* noErrors: {
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* inlineDelimiters: ["$","$"], // or ["",""] or ["\\(","\\)"]
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* multiLine: false,
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* style: {
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* "font-size": "normal",
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* "border": ""
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* }
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* }
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* }
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* });
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*
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* You may also wish to set the font family, as the default is "serif"
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2009-2012 Design Science, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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(function (HUB,HTML) {
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var VERSION = "2.0";
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var CONFIG = HUB.CombineConfig("TeX.noErrors",{
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disabled: false, // set to true to return to original error messages
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multiLine: true,
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inlineDelimiters: ["",""], // or use ["$","$"] or ["\\(","\\)"]
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style: {
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"font-size": "90%",
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"text-align": "left",
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"color": "black",
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"padding": "1px 3px",
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"border": "1px solid"
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}
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});
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var NBSP = "\u00A0";
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//
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// The configuration defaults, augmented by the user settings
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//
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MathJax.Extension["TeX/noErrors"] = {
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version: VERSION,
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config: CONFIG
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};
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HUB.Register.StartupHook("TeX Jax Ready",function () {
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var FORMAT = MathJax.InputJax.TeX.formatError;
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MathJax.InputJax.TeX.Augment({
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//
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// Make error messages be the original TeX code
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// Mark them as errors and multi-line or not, and for
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// multi-line TeX, make spaces non-breakable (to get formatting right)
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//
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formatError: function (err,math,displaystyle,script) {
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if (CONFIG.disabled) {return FORMAT.apply(this,arguments)}
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var message = err.message.replace(/\n.*/,"");
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HUB.signal.Post(["TeX Jax - parse error",message,math,displaystyle,script]);
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var delim = CONFIG.inlineDelimiters;
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var multiLine = (displaystyle || CONFIG.multiLine);
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if (!displaystyle) {math = delim[0] + math + delim[1]}
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if (multiLine) {math = math.replace(/ /g,NBSP)} else {math = math.replace(/\n/g," ")}
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return MathJax.ElementJax.mml.merror(math).With({isError:true, multiLine: multiLine});
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}
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});
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});
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/*******************************************************************
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*
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* Fix HTML-CSS output
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*/
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HUB.Register.StartupHook("HTML-CSS Jax Config",function () {
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HUB.Config({
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"HTML-CSS": {
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styles: {
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".MathJax .noError": HUB.Insert({
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"vertical-align": (HUB.Browser.isMSIE && CONFIG.multiLine ? "-2px" : "")
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},CONFIG.style)
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}
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}
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});
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});
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HUB.Register.StartupHook("HTML-CSS Jax Ready",function () {
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var MML = MathJax.ElementJax.mml;
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var HTMLCSS = MathJax.OutputJax["HTML-CSS"];
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var MATH = MML.math.prototype.toHTML,
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MERROR = MML.merror.prototype.toHTML;
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//
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// Override math toHTML routine so that error messages
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// don't have the clipping and other unneeded overhead
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//
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MML.math.Augment({
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toHTML: function (span,node) {
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var data = this.data[0];
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if (data && data.data[0] && data.data[0].isError) {
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span.style.fontSize = "";
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span = this.HTMLcreateSpan(span);
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span.bbox = data.data[0].toHTML(span).bbox;
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} else {
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span = MATH.call(this,span,node);
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}
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return span;
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}
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});
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//
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// Override merror toHTML routine so that it puts out the
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// TeX code in an inline-block with line breaks as in the original
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//
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MML.merror.Augment({
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toHTML: function (span) {
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if (!this.isError) {return MERROR.call(this,span)}
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span = this.HTMLcreateSpan(span); span.className = "noError"
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if (this.multiLine) {span.style.display = "inline-block"}
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var text = this.data[0].data[0].data.join("").split(/\n/);
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for (var i = 0, m = text.length; i < m; i++) {
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HTMLCSS.addText(span,text[i]);
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if (i !== m-1) {HTMLCSS.addElement(span,"br",{isMathJax:true})}
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}
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var HD = HTMLCSS.getHD(span.parentNode), W = HTMLCSS.getW(span.parentNode);
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if (m > 1) {
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var H = (HD.h + HD.d)/2, x = HTMLCSS.TeX.x_height/2;
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span.parentNode.style.verticalAlign = HTMLCSS.Em(HD.d+(x-H));
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HD.h = x + H; HD.d = H - x;
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}
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span.bbox = {h: HD.h, d: HD.d, w: W, lw: 0, rw: W};
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return span;
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}
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});
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});
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/*******************************************************************
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*
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* Fix SVG output
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*/
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HUB.Register.StartupHook("SVG Jax Config",function () {
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HUB.Config({
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"SVG": {
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styles: {
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".MathJax_SVG .noError": HUB.Insert({
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"vertical-align": (HUB.Browser.isMSIE && CONFIG.multiLine ? "-2px" : "")
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},CONFIG.style)
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}
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}
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});
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});
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HUB.Register.StartupHook("SVG Jax Ready",function () {
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var MML = MathJax.ElementJax.mml;
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var MATH = MML.math.prototype.toSVG,
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MERROR = MML.merror.prototype.toSVG;
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//
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// Override math toSVG routine so that error messages
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// don't have the clipping and other unneeded overhead
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//
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MML.math.Augment({
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toSVG: function (span,node) {
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var data = this.data[0];
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if (data && data.data[0] && data.data[0].isError)
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{span = data.data[0].toSVG(span)} else {span = MATH.call(this,span,node)}
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return span;
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}
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});
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//
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// Override merror toSVG routine so that it puts out the
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// TeX code in an inline-block with line breaks as in the original
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//
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MML.merror.Augment({
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toSVG: function (span) {
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if (!this.isError || this.Parent().type !== "math") {return MERROR.call(this,span)}
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span = HTML.addElement(span,"span",{className: "noError", isMathJax:true});
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if (this.multiLine) {span.style.display = "inline-block"}
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var text = this.data[0].data[0].data.join("").split(/\n/);
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for (var i = 0, m = text.length; i < m; i++) {
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HTML.addText(span,text[i]);
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if (i !== m-1) {HTML.addElement(span,"br",{isMathJax:true})}
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}
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if (m > 1) {
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var H = span.offsetHeight/2;
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span.style.verticalAlign = (-H+(H/m))+"px";
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}
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return span;
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}
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});
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});
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/*******************************************************************
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*
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* Fix NativeMML output
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*/
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HUB.Register.StartupHook("NativeMML Jax Ready",function () {
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var MML = MathJax.ElementJax.mml;
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var CONFIG = MathJax.Extension["TeX/noErrors"].config;
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var MATH = MML.math.prototype.toNativeMML,
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MERROR = MML.merror.prototype.toNativeMML;
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//
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// Override math toNativeMML routine so that error messages
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// don't get placed inside math tags.
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//
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MML.math.Augment({
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toNativeMML: function (span) {
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var data = this.data[0];
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if (data && data.data[0] && data.data[0].isError)
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{span = data.data[0].toNativeMML(span)} else {span = MATH.call(this,span)}
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return span;
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}
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});
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//
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// Override merror toNativeMML routine so that it puts out the
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// TeX code in an inline-block with line breaks as in the original
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//
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MML.merror.Augment({
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toNativeMML: function (span) {
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if (!this.isError) {return MERROR.call(this,span)}
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span = span.appendChild(document.createElement("span"));
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var text = this.data[0].data[0].data.join("").split(/\n/);
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for (var i = 0, m = text.length; i < m; i++) {
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span.appendChild(document.createTextNode(text[i]));
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if (i !== m-1) {span.appendChild(document.createElement("br"))}
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}
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if (this.multiLine) {
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span.style.display = "inline-block";
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if (m > 1) {span.style.verticalAlign = "middle"}
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}
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for (var id in CONFIG.style) {if (CONFIG.style.hasOwnProperty(id)) {
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var ID = id.replace(/-./g,function (c) {return c.charAt(1).toUpperCase()});
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span.style[ID] = CONFIG.style[id];
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}}
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return span;
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}
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});
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});
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/*******************************************************************/
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HUB.Startup.signal.Post("TeX noErrors Ready");
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})(MathJax.Hub,MathJax.HTML);
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MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/noErrors.js");
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