/*
* /MathJax/jax/input/TeX/jax.js
*
* 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.
*/
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p=this.stack.Top();if(!p.isa(b.array)||p.data.length){d.Error([”Misplaced“,”Misplaced %1“,n])}if(p.table.length==0){p.frame.push(”top“)}else{var m=(p.arraydef.rowlines?p.arraydef.rowlines.split(/ /):[]);while(m.length<p.table.length){m.push(”none“)}m=o;p.arraydef.rowlines=m.join(” “)}},HFill:function(m){var n=this.stack.Top();if(n.isa(b.array)){n.hfill.push(n.data.length)}else{d.Error([”UnsupportedHFill“,”Unsupported use of %1“,m])}},BeginEnd:function(o){var p=this.GetArgument(o),r=false;if(p.match(/^\end\/)){r=true;p=p.substr(5)}if(p.match(/\/i)){d.Error([”InvalidEnv“,”Invalid environment name '%1'“,p])}var q=this.envFindName(p);if(!q){d.Error([”UnknownEnv“,”Unknown environment '%1'“,p])}if(!f(q)){q=}var m=(f(q)?q[0]:q);var n=b.begin().With({name:p,end:m,parse:this});if(o===”\end“){if(!r&&f(q)&&this[q[1]]){n=this[q[1]].apply(this,.concat(q.slice(2)))}else{n=b.end().With({name:p})}}else{if(++this.macroCount>d.config.MAXMACROS){d.Error([”MaxMacroSub2“,”MathJax maximum substitution count 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n=this.i,m,r,q=0;while(this.i<this.string.length){m=this.i;r=this.string.charAt(this.i++);switch®{case”\“:r+=this.GetCS();break;case”{“:q++;break;case”}“:if(q==0){d.Error([”ExtraCloseLooking“,”Extra close brace while looking for %1“,p])}q–;break}if(q==0&&r==p){return this.string.slice(n,m)}}d.Error([”TokenNotFoundForCommand“,”Couldn't find %1 for %2“,p,o])},ParseArg:function(m){return d.Parse(this.GetArgument(m),this.stack.env).mml()},ParseUpTo:function(m,n){return d.Parse(this.GetUpTo(m,n),this.stack.env).mml()},InternalMath:function(v,m){var o=(this.stack.env.font?{mathvariant:this.stack.env.font}:{});var 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