discourse-math/public/mathjax/jax/output/SVG/autoload/multiline.js

/*
 *  /MathJax/jax/output/SVG/autoload/multiline.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.
 */

MathJax.Hub.Register.StartupHook("SVG Jax Ready",function(){var d="2.7.5";var a=MathJax.ElementJax.mml,g=MathJax.OutputJax.SVG,b=g.BBOX;var f=a.mo().With({SVGdata:{w:0,x:0}});var e={newline:0,nobreak:1000000,goodbreak:[-200],badbreak:[+200],auto:[0],maxwidth:1.33,toobig:800,nestfactor:400,spacefactor:-100,spaceoffset:2,spacelimit:1,fence:500,close:500};var c={linebreakstyle:"after"};a.mrow.Augment({SVGmultiline:function(l){var p=this;while(p.inferred||(p.parent&&p.parent.type==="mrow"&&p.isEmbellished())){p=p.parent}var o=((p.type==="math"&&p.Get("display")==="block")||p.type==="mtd");p.isMultiline=true;var q=this.getValues("linebreak","linebreakstyle","lineleading","linebreakmultchar","indentalign","indentshift","indentalignfirst","indentshiftfirst","indentalignlast","indentshiftlast");if(q.linebreakstyle===a.LINEBREAKSTYLE.INFIXLINEBREAKSTYLE){q.linebreakstyle=this.Get("infixlinebreakstyle")}q.lineleading=g.length2em(q.lineleading,1,0.5);l=this.SVG();if(o&&p.type!=="mtd"){if(g.linebreakWidth<g.BIGDIMEN){l.w=g.linebreakWidth}else{l.w=g.cwidth}}var h={n:0,Y:0,scale:this.scale||1,isTop:o,values:{},VALUES:q},n=this.SVGgetAlign(h,{}),j=this.SVGgetShift(h,{},n),i=[],k={index:[],penalty:e.nobreak,w:0,W:j,shift:j,scanW:j,nest:0},m=false;while(this.SVGbetterBreak(k,h,true)&&(k.scanW>=g.linebreakWidth||k.penalty===e.newline)){this.SVGaddLine(l,i,k.index,h,k.values,m);i=k.index.slice(0);m=true;n=this.SVGgetAlign(h,k.values);j=this.SVGgetShift(h,k.values,n);if(n===a.INDENTALIGN.CENTER){j=0}k.W=k.shift=k.scanW=j;k.penalty=e.nobreak}h.isLast=true;this.SVGaddLine(l,i,[],h,c,m);this.SVGhandleSpace(l);this.SVGhandleColor(l);l.isMultiline=true;this.SVGsaveData(l);return l}});a.mbase.Augment({SVGlinebreakPenalty:e,SVGbetterBreak:function(l,h,s){if(this.isToken){return false}if(this.isEmbellished()){l.embellished=this;return this.CoreMO().SVGbetterBreak(l,h)}if(this.linebreakContainer){return false}var r=l.index.slice(0),p=l.index.shift(),o=this.data.length,n,t,k,q=(l.index.length>0),j=false;if(p==null){p=-1}if(!q){p++;l.W+=l.w;l.w=0}k=l.scanW=l.W;l.nest++;while(p<o&&(l.scanW<e.maxwidth*g.linebreakWidth||l.w===0)){if(this.data[p]){if(this.data[p].SVGbetterBreak(l,h)){j=true;r=[p].concat(l.index);n=l.W;t=l.w;if(l.penalty===e.newline){l.index=r;if(l.nest){l.nest--}return true}}k=(q?l.scanW:this.SVGaddWidth(p,l,k))}l.index=[];p++;q=false}if(s&&j){f.parent=this.parent;f.inherit=this.inherit;if(f.SVGbetterBreak(l,h)){j=false;r=l.index}}if(l.nest){l.nest--}l.index=r;if(j){l.W=n}return j},SVGaddWidth:function(j,l,k){if(this.data[j]){var h=this.data[j].SVGdata;k+=h.w+h.x;if(h.X){k+=h.X}l.W=l.scanW=k;l.w=0}return k},SVGaddLine:function(m,i,l,h,q,o){var r=b();h.first=o;h.last=true;this.SVGmoveLine(i,l,r,h,q);r.Clean();var p=this.SVGgetAlign(h,q),j=this.SVGgetShift(h,q,p);if(h.n>0){var n=g.FONTDATA.baselineskip*h.scale;var k=(h.values.lineleading==null?h.VALUES:h.values).lineleading*h.scale;h.Y-=Math.max(n,h.d+r.h+k)}if(r.w+j>m.w){m.w=r.w+j}m.Align(r,p,0,h.Y,j);h.d=r.d;h.values=q;h.n++},SVGgetAlign:function(k,h){var l=h,i=k.values,j=k.VALUES,m;if(k.n===0){m=l.indentalignfirst||i.indentalignfirst||j.indentalignfirst}else{if(k.isLast){m=i.indentalignlast||j.indentalignlast}else{m=i.indentalign||j.indentalign}}if(m===a.INDENTALIGN.INDENTALIGN){m=i.indentalign||j.indentalign}if(m===a.INDENTALIGN.AUTO){m=(k.isTop?this.displayAlign:a.INDENTALIGN.LEFT)}return m},SVGgetShift:function(m,j,o){var n=j,k=m.values,l=m.VALUES,i;if(m.n===0){i=n.indentshiftfirst||k.indentshiftfirst||l.indentshiftfirst}else{if(m.isLast){i=k.indentshiftlast||l.indentshiftlast}else{i=k.indentshift||l.indentshift}}if(i===a.INDENTSHIFT.INDENTSHIFT){i=k.indentshift||l.indentshift}if(i==="auto"||i===""){i="0"}i=g.length2em(i,1,g.cwidth);if(m.isTop&&this.displayIndent!=="0"){var h=g.length2em(this.displayIndent,1,g.cwidth);i+=(o===a.INDENTALIGN.RIGHT?-h:h)}return i},SVGmoveLine:function(q,h,l,p,k){var n=q[0],m=h[0];if(n==null){n=-1}if(m==null){m=this.data.length-1}if(n===m&&q.length>1){this.data[n].SVGmoveSlice(q.slice(1),h.slice(1),l,p,k,"paddingLeft")}else{var o=p.last;p.last=false;whil