File:  [LON-CAPA] / loncom / html / adm / jsMath / jsMath.js
Revision 1.1: download - view: text, annotated - select for diffs
Fri Feb 25 04:57:49 2005 UTC (19 years, 4 months ago) by albertel
Branches: MAIN
CVS tags: version_2_0_X, version_2_0_2, version_2_0_1, version_2_0_0, version_1_99_3, version_1_99_2, version_1_99_1_tmcc, version_1_99_1, version_1_99_0_tmcc, version_1_99_0, HEAD
- adding jsMath to repository

    1: /*****************************************************************************
    2:  * 
    3:  *  jsMath: Mathematics on the Web
    4:  *  
    5:  *  Version: 1.7e
    6:  *  
    7:  *  This jsMath package makes it possible to display mathematics in HTML pages
    8:  *  that are viewable by a wide range of browsers on both the Mac and the IBM PC,
    9:  *  including browsers that don't process MathML.  See
   10:  *  
   11:  *            http://www.math.union.edu/locate/jsMath
   12:  *
   13:  *  for the latest version, and for documentation on how to use jsMath.
   14:  * 
   15:  *  Copyright (c) 2004-2005 by Davide P. Cervone.
   16:  *
   17:  *  This program is free software; you can redistribute it and/or
   18:  *  modify it under the terms of the GNU General Public License
   19:  *  as published by the Free Software Foundation; either version 2
   20:  *  of the License.
   21:  *  
   22:  *  This program is distributed in the hope that it will be useful,
   23:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   24:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   25:  *  GNU General Public License for more details.
   26:  *  
   27:  *  You should have received a copy of the GNU General Public License
   28:  *  along with this program; if not, write to the Free Software
   29:  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
   30:  *  
   31:  *****************************************************************************/
   32: 
   33: /*
   34:  *  Prevent running everything again if this file is loaded twice
   35:  */
   36: if (!window.jsMath) {
   37: 
   38: //
   39: // debugging routine
   40: // 
   41: function ShowObject (obj,spaces) {
   42:   var s = ''; if (!spaces) {spaces = ""}
   43:   for (var i in obj) {
   44:     if (obj[i] != null) {
   45:       if (typeof(obj[i]) == "object") {
   46:         s += spaces + i + ": {\n"
   47:           + ShowObject(obj[i],spaces + '  ')
   48:           + spaces + "}\n";
   49:       } else if (typeof(obj[i]) != "function") {
   50:         s += spaces + i + ': ' + obj[i] + "\n";
   51:       }
   52:     }
   53:   }
   54:   return s;
   55: }
   56: 
   57: /***************************************************************************/
   58: //
   59: //  Check for DOM support
   60: //
   61: if (!document.getElementById || !document.childNodes || !document.createElement) {
   62:   alert('The mathematics on this page requires W3C DOM support in its JavaScript. '
   63:       + 'Unfortunately, your browser doesn\'t seem to have this.');
   64: } else {
   65: 
   66: /***************************************************************************/
   67: 
   68: var jsMath = {
   69: 
   70:   //
   71:   //  Name of image files
   72:   //
   73:   blank: "blank.gif",
   74:   black: "black.gif",
   75:   
   76:   //
   77:   //  The TeX font parameters
   78:   //
   79:   TeX: {
   80:     thinmuskip:   3/18,
   81:     medmuskip:    4/18,
   82:     thickmuskip:  5/18,
   83: 
   84:     x_height:    .430554,
   85:     quad:        1,
   86:     num1:        .676508,
   87:     num2:        .393732,
   88:     num3:        .44373,
   89:     denom1:      .685951,
   90:     denom2:      .344841,
   91:     sup1:        .412892,
   92:     sup2:        .362892,
   93:     sup3:        .288888,
   94:     sub1:        .15,
   95:     sub2:        .247217,
   96:     sup_drop:    .386108,
   97:     sub_drop:    .05,
   98:     delim1:     2.39,
   99:     delim2:     1.0,
  100:     axis_height: .25,
  101:     default_rule_thickness: .04,
  102:     big_op_spacing1:  .111111,
  103:     big_op_spacing2:  .166666,
  104:     big_op_spacing3:  .2,
  105:     big_op_spacing4:  .6,
  106:     big_op_spacing5:  .1,
  107: 
  108:     integer:          6553.6,     // conversion of em's to TeX internal integer
  109:     scriptspace:         .05,
  110:     nulldelimiterspace:  .12,
  111:     delimiterfactor:     901,
  112:     delimitershortfall:   .5,
  113:     scale:                 1      //  scaling factor for font dimensions
  114:   },
  115:   
  116:   // Font sizes for \tiny, \small, etc. (must match styles below)
  117:   sizes: [50, 60, 70, 85, 100, 120, 144, 173, 207, 249],
  118: 
  119:   allowAbsolute: 1,           // tells if browser can nest absolutely positioned
  120:                               //   SPANs inside relative SPANs
  121:   absoluteOffsetY: 0,         // vertical adjustment when absolute position is used
  122:   allowAbsoluteDelim: 0,      // OK to use absolute placement for building delims?
  123:   renameOK: 1,                // tells if brower will find a tag whose name
  124:                               //   has been set via setAttributes
  125:   separateNetgativeSkips: 0,  // MSIE doesn't do negative left margins
  126:   separateSkips: 0,           // Netscape doesn't combine skips well
  127:   noEmptySpans: 0,            // empty spans are/aren't allowed
  128:   msieSpaceFix: '',           // for MSIE spacing bug fix
  129: 
  130:   delay: 1,       // delay for asynchronous math processing
  131:   
  132:   defaultH: 0,    // default height for characters with no height specified
  133: 
  134:   //
  135:   //  Debugging flags
  136:   //
  137:   show: {
  138:     BBox:           false,
  139:     Baseline:       false,
  140:     Top:            false
  141:   },
  142:   
  143:   //
  144:   //  The styles needed for the TeX fonts
  145:   //
  146:   styles: {
  147:     '.size0':          'font-size: 50%',  // tiny (\scriptscriptsize)
  148:     '.size1':          'font-size: 60%',  //       (50% of \large for consistency)
  149:     '.size2':          'font-size: 70%',  // scriptsize
  150:     '.size3':          'font-size: 85%',  // small (70% of \large for consistency)
  151:     '.size4':          'font-size: 100%', // normalsize
  152:     '.size5':          'font-size: 120%', // large
  153:     '.size6':          'font-size: 144%', // Large
  154:     '.size7':          'font-size: 173%', // LARGE
  155:     '.size8':          'font-size: 207%', // huge
  156:     '.size9':          'font-size: 249%', // Huge
  157:   
  158:     '.cmr10':          'font-family: cmr10',
  159:     '.cmbx10':         'font-family: cmbx10, cmr10',
  160:     '.cmti10':         'font-family: cmti10, cmr10',
  161:     '.cmmi10':         'font-family: cmmi10',
  162:     '.cmsy10':         'font-family: cmsy10',
  163:     '.cmex10':         'font-family: cmex10',
  164:     '.arial':          'font-family: Arial unicode MS', // for MSIE
  165: 
  166:     '.normal':         'font-family: serif; font-style: normal',
  167:     '.math':           'font-family: serif; font-style: normal',
  168:     '.typeset':        'font-family: serif; font-style: normal',
  169:     'span.typeset':    'font-family: serif; font-style: normal',
  170:     'div.typeset':     'font-family: serif; font-style: normal; text-align: center; margin-top: 1em; margin-bottom: 1em',
  171:     '.mathlink':       'text-decoration: none',
  172:     '.mathHD':         'border-width: 0; width: 1px; margin-right: -1px',
  173:   
  174:     '.error':          'font-size: 10pt; font-style: italic; '
  175:                          + 'background-color: #FFFFCC; padding: 1; '
  176:                          + 'border-width: 1; border-style: solid; border-color: #CC0000'
  177:   },
  178: 
  179:   
  180:   /***************************************************************************/
  181: 
  182:   /*
  183:    *  Get the width and height (in pixels) of an HTML string
  184:    */
  185:   BBoxFor: function (s) {
  186:     this.hidden.innerHTML = s;
  187:     var bbox = {w: this.hidden.offsetWidth, h: this.hidden.offsetHeight};
  188:     this.hidden.innerHTML = '';    // avoid MSIE bug on the Mac
  189:     return bbox;
  190:   },
  191: 
  192:   /*
  193:    *  Get the width and height (in ems) of an HTML string
  194:    */
  195:   EmBoxFor: function (s) {
  196:     var bbox = this.BBoxFor(s);
  197:     return {w: bbox.w/this.em, h: bbox.h/this.em};
  198:   },
  199: 
  200:   /*
  201:    *  Determine if the "top" of a <SPAN> is always at the same height
  202:    *  or varies with the height of the rest of the line (MSIE).
  203:    */
  204:   TestSpanHeight: function () {
  205:     this.hidden.innerHTML = '<SPAN><IMG SRC="'+jsMath.blank+'" STYLE="height: 2em"></SPAN>';
  206:     var span = this.hidden.getElementsByTagName('SPAN')[0];
  207:     var img  = this.hidden.getElementsByTagName('IMG')[0];
  208:     this.spanHeightVaries = (span.offsetHeight == img.offsetHeight);
  209:     this.hidden.innerHTML = '';
  210:   },
  211:   
  212:   /*
  213:    *  Determine if the NAME attribute of a tag can be changed
  214:    *  using the setAttribute function, and then be properly
  215:    *  returned by getElementByName.
  216:    */
  217:   TestRenameOK: function () {
  218:     this.hidden.innerHTML = '<SPAN ID="jsMath.test"></SPAN>';
  219:     var test = document.getElementById('jsMath.test');
  220:     test.setAttribute('NAME','jsMath_test');
  221:     this.renameOK = (document.getElementsByName('jsMath_test').length > 0);
  222:     this.hidden.innerHTML = '';
  223:   },
  224: 
  225:   /*
  226:    *  Look to see if a font is found.  HACK!
  227:    *  Check the character in the '|' position, and see if it is
  228:    *  wider than the usual '|'.
  229:    */
  230:   TestFont: function (name,n,factor) {
  231:     if (n == null) {n = 124}; if (factor == null) {factor = 2}
  232:     var wh1 = this.BBoxFor('<SPAN STYLE="font-family: '+name+', serif">'+this.TeX[name][n].c+'</SPAN>');
  233:     var wh2 = this.BBoxFor('<SPAN STYLE="font-family: serif">'+this.TeX[name][n].c+'</SPAN>');
  234:     return (wh1.w > factor*wh2.w && wh1.h != 0);
  235:   },
  236: 
  237:   TestFont2: function (name,n,factor) {
  238:     if (n == null) {n = 124}; if (factor == null) {factor = 2}
  239:     var wh1 = this.BBoxFor('<SPAN STYLE="font-family: '+name+', serif">'+this.TeX[name][n].c+'</SPAN>');
  240:     var wh2 = this.BBoxFor('<SPAN STYLE="font-family: serif">'+this.TeX[name][n].c+'</SPAN>');
  241:     return (wh2.w > factor*wh1.w && wh1.h != 0);
  242:   },
  243:   
  244:   /*
  245:    *  Check for the availability of TeX fonts.  We do this by looking at
  246:    *  the width and height of a character in the cmex10 font.  The cmex10
  247:    *  font has depth considerably greater than most characters' widths (the
  248:    *  whole font has the depth of the character with greatest depth).  This
  249:    *  is not the case for most fonts, so if we can access cmex10, the
  250:    *  height of a character should be much bigger than the width.
  251:    *  Otherwise, if we don't have cmex10, we'll get a character in another
  252:    *  font with normal height and width.  In this case, we insert a message
  253:    *  pointing the user to the jsMath site, and load one of the fallback
  254:    *  definitions.
  255:    *  
  256:    */
  257:   CheckFonts: function () {
  258:     jsMath.nofonts = 0;
  259:     var wh = this.BBoxFor('<SPAN STYLE="font-family: cmex10">'+this.TeX.cmex10[1].c+'</SPAN>');
  260:     if (wh.w*3 < wh.h && wh.h != 0) return;
  261:     if (this.TestFont('cmr10')) return;
  262:     if (window.NoFontMessage) {window.NoFontMessage()} else {this.NoFontMessage()}
  263:     if (navigator.platform == 'Win32') {
  264:       document.writeln('<SCRIPT SRC="'+this.root+'jsMath-fallback-pc.js"></SCRIPT>');
  265:     } else if (navigator.platform == 'MacPPC') {
  266:       document.writeln('<SCRIPT SRC="'+this.root+'jsMath-fallback-mac.js"></SCRIPT>');
  267:     } else {
  268:       // default to unix?  Is there a better way to tell if unix?
  269:       document.writeln('<SCRIPT SRC="'+this.root+'jsMath-fallback-unix.js"></SCRIPT>');
  270:     }
  271:     jsMath.nofonts = 1;
  272:   },
  273: 
  274:   /*
  275:    *  The message for when no TeX fonts.  You can eliminate this message
  276:    *  by including
  277:    *  
  278:    *      <SCRIPT>function NoFontMessage() {}</SCRIPT>
  279:    *
  280:    *  in your HTML file, if you want.  But this means the user may not know
  281:    *  that he or she can get a better version of your page.
  282:    */
  283:   NoFontMessage: function () {
  284:     document.writeln
  285:       ('<CENTER><DIV STYLE="padding: 10; border-style: solid; border-width:3;'
  286:       +' border-color: #DD0000; background-color: #FFF8F8; width: 75%; text-align: left">'
  287:       +'<SMALL><FONT COLOR="#AA0000"><B>Warning:</B>\n'
  288:       +'It looks like you don\'t have the TeX math fonts installed.\n'
  289:       +'The mathematics on this page may not look right without them.\n'
  290:       +'The <A HREF="http://www.math.union.edu/locate/jsMath/" TARGET="_blank">'
  291:       +'jsMath Home Page</A> has information on how to download the\n'
  292:       +'needed fonts.  In the meantime, we will do the best we can\n'
  293:       +'with the fonts you have, but it may not be pretty and some equations\n'
  294:       +'may not be rendered correctly.\n'
  295:       +'</FONT></SMALL></DIV></CENTER><p><HR><p>');
  296:   },
  297:   
  298:   /*
  299:    *  Initialize jsMath.  This determines the em size, and a variety
  300:    *  of other parameters used throughout jsMath.
  301:    */
  302:   Init: function() {
  303:     this.em = this.BBoxFor('<DIV STYLE="width: 20em; height: 1em"></DIV>').w/20;
  304:     var h = this.BBoxFor('x').h;    // Line height and depth to baseline
  305:     var d = this.BBoxFor('x<IMG SRC="'+jsMath.black+'" HEIGHT="'+h+'" WIDTH="1">').h - h;
  306:     this.h = (h-d)/this.em; this.d = d/this.em;
  307:     this.hd = this.h + this.d;
  308:     this.ph = h-d; this.pd = d;
  309:     
  310:     this.InitTeXfonts();
  311:     
  312:     var x_height = this.EmBoxFor('<SPAN CLASS="cmr10">M</SPAN>').w/2;
  313:     this.TeX.M_height = x_height*(26/14);
  314:     this.TeX.h = this.h; this.TeX.d = this.d; this.TeX.hd = this.hd;
  315:     // factor for \big and its brethren
  316:     this.p_height = (this.TeX.cmex10[0].h+this.TeX.cmex10[0].d) / .85;
  317: 
  318:     this.InitSizes();
  319:     
  320:     this.initialized = 1;
  321:   },
  322: 
  323:   /*
  324:    *  Find the root URL for the jsMath files (so we can load
  325:    *  the other .js and .gif files
  326:    */
  327:   InitSource: function () {
  328:     var script = document.getElementsByTagName('SCRIPT');
  329:     var src = script[script.length-1].getAttribute('SRC');
  330:     if (src.match('(^|/)jsMath.js$')) {
  331:       this.root = src.replace(/jsMath.js$/,'');
  332:       this.blank = this.root + this.blank;
  333:       this.black = this.root + this.black;
  334:     }
  335:   },
  336:   
  337:   /*
  338:    *  Look up the default height and depth for a TeX font
  339:    *  and set the skewchar
  340:    */
  341:   InitTeXfont: function (name) {
  342:     var font = this.TeX[name];
  343:     var WH = this.EmBoxFor('<SPAN CLASS="'+name+'">'+font[65].c+'</SPAN>');
  344:     font.hd = WH.h;
  345:     font.d = this.EmBoxFor('<SPAN CLASS="'+name+'">'+ font[65].c +
  346:       '<IMG SRC="'+jsMath.black+'" STYLE="height:'+font.hd+'em; width:1"></SPAN>').h 
  347:       - font.hd;
  348:     font.h = font.hd - font.d;
  349:     font.dh = .05;
  350:     if (name == 'cmmi10') {font.skewchar = 0177} 
  351:     else if (name == 'cmsy10') {font.skewchar = 060}
  352:   },
  353: 
  354:   /*
  355:    *  Init all the TeX fonts
  356:    */
  357:   InitTeXfonts: function () {
  358:     for (var i = 0; i < this.TeX.fam.length; i++) 
  359:       {if (this.TeX.fam[i]) {this.InitTeXfont(this.TeX.fam[i])}}
  360:   },
  361: 
  362:   /*
  363:    *  Compute font parameters for various sizes
  364:    */
  365:   InitSizes: function () {
  366:     this.TeXparams = [];
  367:     for (var j=0; j < this.sizes.length; j++) {this.TeXparams[j] = {}}
  368:     for (var i in this.TeX) {
  369:       if (typeof(this.TeX[i]) != 'object') {
  370:         for (var j=0; j < this.sizes.length; j++) {
  371:           this.TeXparams[j][i] = this.sizes[j]*this.TeX[i]/100;
  372:         }
  373:       }
  374:     }
  375:   },
  376: 
  377:   /*
  378:    *  Test for browser characteristics, and adjust the font table
  379:    *  to overcome specific browser bugs
  380:    */
  381:   InitBrowser: function () {
  382:     jsMath.browser = 'unknown';
  383:     this.isSafari = navigator.userAgent.match(/Safari/);
  384:     this.TestSpanHeight();
  385:     this.TestRenameOK();
  386: 
  387:     //
  388:     //  Check for bug-filled Internet Explorer
  389:     //
  390:     if (this.spanHeightVaries) {
  391:       jsMath.browser = 'MSIE';
  392:       if (navigator.platform == 'Win32') {
  393:         this.UpdateTeXfonts({
  394:           cmr10:  {'10': {c: '&Omega;', tclass: 'normal'}},
  395:           cmmi10: {
  396: 	     '10':  {c: '<I>&Omega;</I>', tclass: 'normal'},
  397: 	     '126': {c: '&#x7E;<SPAN STYLE="margin-left:.1em"></SPAN>'}
  398: 	  },
  399:           cmsy10: {'10': {c: '&#x2297;', tclass: 'arial'}},
  400:           cmex10: {'10': {c: '<SPAN STYLE="font-size: 67%">D</SPAN>'}},
  401:           cmti10: {'10': {c: '<I>&Omega;</I>', tclass: 'normal'}},
  402:           cmbx10: {'10': {c: '<B>&Omega;</B>', tclass: 'normal'}}
  403:         });
  404:         this.allowAbsoluteDelim = 1;
  405: 	this.separateSkips = 1;
  406:         this.msieFontBug = 1; this.msieIntegralBug = 1;
  407:         this.msieSpaceFix = '<IMG SRC="'+jsMath.blank+'" CLASS="mathHD">';
  408:         jsMath.Macro('joinrel','\\mathrel{\\kern-5mu}'),
  409:         jsMath.Macro('mapsto','\\mapstochar\\kern-.54em\\rightarrow');
  410:         jsMath.Macro('longmapsto','\\mapstochar\\kern-.54em\\char{cmsy10}{0}\\joinrel\\rightarrow');
  411:       } else if (navigator.platform == 'MacPPC') {
  412:         document.writeln('<SCRIPT SRC="'+this.root+'jsMath-msie-mac.js"></SCRIPT>');
  413:         jsMath.Parser.prototype.macros.angle = ['Replace','ord','<FONT FACE="Symbol">&#x8B;</FONT>','normal'];
  414:         jsMath.msieAbsoluteBug = 1;
  415:       }
  416:       jsMath.Macro('not','\\mathrel{\\rlap{\\kern3mu/}}');
  417:     }
  418: 
  419:     //
  420:     //  Look for Netscape/Mozilla (any flavor)
  421:     //
  422:     if (this.hidden.ATTRIBUTE_NODE) {
  423:       jsMath.browser = 'Mozilla';
  424:       if (navigator.platform == 'MacPPC') {
  425:         this.UpdateTeXfonts({
  426:           cmr10:  {'10': {c: '&Omega;', tclass: 'normal'}},
  427:           cmmi10: {'10': {c: '<I>&Omega;</I>', tclass: 'normal'}},
  428:           cmsy10: {'10': {c: '&otimes;', tclass: 'normal'}},
  429:           cmex10: {'10': {c: '<SPAN STYLE="font-size: 67%">D</SPAN>'}},
  430:           cmti10: {'10': {c: '<I>&Omega;</I>', tclass: 'normal'}},
  431:           cmbx10: {'10': {c: '<B>&Omega;</B>', tclass: 'normal'}}
  432:         });
  433:       } else {
  434:         document.writeln('<SCRIPT SRC="'+this.root+'jsMath-mozilla.js"></SCRIPT>');
  435:       }
  436:       for (var i = 0; i < this.TeX.fam.length; i++) {
  437:         if (this.TeX.fam[i]) 
  438:           {this.styles['.'+this.TeX.fam[i]] += '; position: relative'}
  439:       }
  440:       this.allowAbsoluteDelim = 1;
  441:       this.separateSkips = 1;
  442:       jsMath.Macro('not','\\mathrel{\\rlap{\\kern3mu/}}');
  443:     }
  444: 
  445:     //
  446:     //  Look for OmniWeb
  447:     //
  448:     if (navigator.accentColorName) {
  449:       jsMath.browser = 'OmniWeb';
  450:       this.allowAbsolute = 0;
  451:     }
  452:     
  453:     //
  454:     //  Look for Opera
  455:     //
  456:     if (navigator.userAgent.search(" Opera ") >= 0) {
  457:       jsMath.browser = 'Opera';
  458:       this.isOpera = 1;
  459:       this.UpdateTeXfonts({
  460:         cmr10:  {
  461:           '10': {c: '&Omega;', tclass: 'normal'},
  462:           '20': {c: '&#x2C7;', tclass: 'normal'}
  463:         },
  464:         cmmi10: {
  465:           '10': {c: '<I>&Omega;</I>', tclass: 'normal'},
  466:           '20': {c: '&kappa;', tclass: 'normal'}
  467:         },
  468:         cmsy10: {
  469:           '10': {c: '&otimes;', tclass: 'normal'},
  470:           '20': {c: '&#x2264;', tclass: 'normal'}
  471:         },
  472:         cmex10: {
  473:           '10': {c: '<SPAN STYLE="font-size: 67%">D</SPAN>'},
  474:           '20': {c: '<SPAN STYLE="font-size: 82%">"</SPAN>'}
  475:         },
  476:         cmti10: {
  477:           '10': {c: '<I>&Omega;</I>', tclass: 'normal'},
  478:           '20': {c: '<I>&#x2C7;</I>', tclass: 'normal'}
  479:         },
  480:         cmbx10: {
  481:           '10': {c: '<B>&Omega;</B>', tclass: 'normal'},
  482:           '20': {c: '<B>&#x2C7;</B>', tclass: 'normal'}
  483:         }
  484:       });
  485:       this.allowAbsolute = 0;
  486:       jsMath.delay = 10;
  487:     }
  488: 
  489:     //
  490:     //  Look for Safari
  491:     //
  492:     if (this.isSafari) {
  493:       jsMath.browser = 'Safari';
  494:       var version = navigator.userAgent.match("Safari/([0-9]+)")[1];
  495:       if (version < 125) {this.allowAbsolute = 0; this.oldSafari = 1}
  496:       for (var i = 0; i < this.TeX.fam.length; i++)
  497:         {if (this.TeX.fam[i] != '') {this.TeX[this.TeX.fam[i]].dh = .1}}
  498:       this.absoluteOffsetY = -.05;
  499:       this.TeX.axis_height += .05;
  500:       this.allowAbsoluteDelim = ! this.oldSafari;
  501:     }
  502: 
  503:     //
  504:     // Change some routines depending on the browser
  505:     // 
  506:     if (this.allowAbsoluteDelim) {
  507:       jsMath.Box.DelimExtend = jsMath.Box.DelimExtendAbsolute;
  508:       jsMath.Box.Layout = jsMath.Box.LayoutAbsolute;
  509:     } else {
  510:       jsMath.Box.DelimExtend = jsMath.Box.DelimExtendRelative;
  511:       jsMath.Box.Layout = jsMath.Box.LayoutRelative;
  512:     }
  513:     
  514:     if (this.separateNegativeSkips) {
  515:       jsMath.HTML.Place = jsMath.HTML.PlaceSeparateNegative;
  516:       jsMath.Typeset.prototype.Place = jsMath.Typeset.prototype.PlaceSeparateNegative;
  517:     } else if (this.separateSkips) {
  518:       jsMath.HTML.Place = jsMath.HTML.PlaceSeparateSkips;
  519:       jsMath.Typeset.prototype.Place = jsMath.Typeset.prototype.PlaceSeparateSkips;
  520:     }
  521:     
  522:     if (this.noEmptySpans) {jsMath.HTML.Spacer = jsMath.HTML.SpacerImage}
  523: 
  524:   },
  525:   
  526:   /*
  527:    *  Define some styles
  528:    */
  529:   WriteStyles: function (styles) {
  530:     document.writeln('<STYLE TYPE="text/css">');
  531:     for (var id in styles) {document.writeln('  '+id+'  {'+styles[id]+'}')}
  532:     document.writeln('</STYLE>');
  533:   },
  534:   
  535:   /*
  536:    *  Send the style definitions to the browser (these may be adjusted
  537:    *  by the browser-specific code)
  538:    */
  539:   InitStyles: function () {this.WriteStyles(this.styles)},
  540:   
  541:   /*
  542:    *  Update specific parameters for a limited number of font entries
  543:    */
  544:   UpdateTeXfonts: function (change) {
  545:     for (var font in change) {
  546:       for (var code in change[font]) {
  547:         for (var id in change[font][code]) {
  548:           this.TeX[font][code][id] = change[font][code][id];
  549:         }
  550:       }
  551:     }
  552:   },
  553:   
  554:   /*
  555:    *  Update the character code for every character in a list
  556:    *  of fonts
  557:    */
  558:   UpdateTeXfontCodes: function (change) {
  559:     for (var font in change) {
  560:       for (var i = 0; i < change[font].length; i++) {
  561:         this.TeX[font][i].c = change[font][i];
  562:       }
  563:     }
  564:   },
  565:   
  566:   /*
  567:    *  Add a collection of styles to the style list
  568:    */
  569:   UpdateStyles: function (styles) {
  570:     for (var i in styles) {this.styles[i] = styles[i]}
  571:   },
  572: 
  573:   /*
  574:    *  Manage JavaScript objects:
  575:    *  
  576:    *      Add:      simply add items to an object
  577:    *      Package:  add items to an object prototype
  578:    */
  579:   Add: function (obj,def) {for (var id in def) {obj[id] = def[id]}},
  580:   Package: function (obj,def) {this.Add(obj.prototype,def)}
  581:   
  582: }
  583: 
  584: 
  585: /***************************************************************************/
  586: 
  587: jsMath.Add(jsMath.TeX,{
  588: 
  589:   //  The TeX math atom types (see Appendix G of the TeXbook)
  590:   atom: ['ord', 'op', 'bin', 'rel', 'open', 'close', 'punct', 'ord'],
  591: 
  592:   //  The TeX font families
  593:   fam: ['cmr10','cmmi10','cmsy10','cmex10','cmti10','','cmbx10'],
  594: 
  595:   /*
  596:    *  The following are the TeX font mappings and metrics.  The metric
  597:    *  information comes directly from the TeX .tfm files, and the
  598:    *  character mappings are for the TrueType TeX fonts.  Browser-specific
  599:    *  adjustments are made to these tables in the InitBrowser() routine
  600:    */
  601:   cmr10: [
  602:     // 00 - 0F
  603:     {c: '&#xA1;', h: 0.683, w: 0.625},
  604:     {c: '&#xA2;', h: 0.683, w: 0.833},
  605:     {c: '&#xA3;', h: 0.683, w: 0.778},
  606:     {c: '&#xA4;', h: 0.683, w: 0.694},
  607:     {c: '&#xA5;', h: 0.683, w: 0.667},
  608:     {c: '&#xA6;', h: 0.683, w: 0.75},
  609:     {c: '&#xA7;', h: 0.683, w: 0.722},
  610:     {c: '&#xA8;', h: 0.683, w: 0.778},
  611:     {c: '&#xA9;', h: 0.683, w: 0.722},
  612:     {c: '&#xAA;', h: 0.683, w: 0.778},
  613:     {c: '&#xAD;', h: 0.683, w: 0.722},
  614:     {c: '&#xAE;', h: 0.694, w: 0.583, ic: 0.0778, krn: {'39': 0.0778, '63': 0.0778, '33': 0.0778, '41': 0.0778, '93': 0.0778}, lig: {'105': 14, '108': 15}},
  615:     {c: '&#xAF;', h: 0.694, w: 0.556},
  616:     {c: '&#xB0;', h: 0.694, w: 0.556},
  617:     {c: '&#xB1;', h: 0.694, w: 0.833},
  618:     {c: '&#xB2;', h: 0.694, w: 0.833},
  619:     // 10 - 1F
  620:     {c: '&#xB3;', h: 0.431, w: 0.278},
  621:     {c: '&#xB4;', h: 0.431, d: 0.194, w: 0.306},
  622:     {c: '&#xB5;', h: 0.694, w: 0.5},
  623:     {c: '&#xB6;', h: 0.694, w: 0.5},
  624:     {c: '&#x2219;', h: 0.628, w: 0.5},
  625:     {c: '&#xB8;', h: 0.694, w: 0.5},
  626:     {c: '&#xB9;', h: 0.568, w: 0.5},
  627:     {c: '&#xBA;', h: 0.694, w: 0.75},
  628:     {c: '&#xBB;', d: 0.17, w: 0.444},
  629:     {c: '&#xBC;', h: 0.694, w: 0.5},
  630:     {c: '&#xBD;', h: 0.431, w: 0.722},
  631:     {c: '&#xBE;', h: 0.431, w: 0.778},
  632:     {c: '&#xBF;', h: 0.528, d: 0.0972, w: 0.5},
  633:     {c: '&#xC0;', h: 0.683, w: 0.903},
  634:     {c: '&#xC1;', h: 0.683, w: 1.01},
  635:     {c: '&#xC2;', h: 0.732, d: 0.0486, w: 0.778},
  636:     // 20 - 2F
  637:     {c: '&#xC3;', h: 0.431, w: 0.278, krn: {'108': -0.278, '76': -0.319}},
  638:     {c: '!', h: 0.694, w: 0.278, lig: {'96': 60}},
  639:     {c: '"', h: 0.694, w: 0.5},
  640:     {c: '#', h: 0.694, d: 0.194, w: 0.833},
  641:     {c: '$', h: 0.75, d: 0.0556, w: 0.5},
  642:     {c: '%', h: 0.75, d: 0.0556, w: 0.833},
  643:     {c: '&#x26;', h: 0.694, w: 0.778},
  644:     {c: '\'', h: 0.694, w: 0.278, krn: {'63': 0.111, '33': 0.111}, lig: {'39': 34}},
  645:     {c: '(', h: 0.75, d: 0.25, w: 0.389},
  646:     {c: ')', h: 0.75, d: 0.25, w: 0.389},
  647:     {c: '*', h: 0.75, w: 0.5},
  648:     {c: '+', h: 0.583, d: 0.0833, w: 0.778},
  649:     {c: ',', h: 0.106, d: 0.194, w: 0.278},
  650:     {c: '-', h: 0.431, w: 0.333, lig: {'45': 123}},
  651:     {c: '.', h: 0.106, w: 0.278},
  652:     {c: '/', h: 0.75, d: 0.25, w: 0.5},
  653:     // 30 - 3F
  654:     {c: '0', h: 0.644, w: 0.5},
  655:     {c: '1', h: 0.644, w: 0.5},
  656:     {c: '2', h: 0.644, w: 0.5},
  657:     {c: '3', h: 0.644, w: 0.5},
  658:     {c: '4', h: 0.644, w: 0.5},
  659:     {c: '5', h: 0.644, w: 0.5},
  660:     {c: '6', h: 0.644, w: 0.5},
  661:     {c: '7', h: 0.644, w: 0.5},
  662:     {c: '8', h: 0.644, w: 0.5},
  663:     {c: '9', h: 0.644, w: 0.5},
  664:     {c: ':', h: 0.431, w: 0.278},
  665:     {c: ';', h: 0.431, d: 0.194, w: 0.278},
  666:     {c: '&#x3C;', h: 0.5, d: 0.194, w: 0.278},
  667:     {c: '=', h: 0.367, d: -0.133, w: 0.778},
  668:     {c: '&#x3E;', h: 0.5, d: 0.194, w: 0.472},
  669:     {c: '?', h: 0.694, w: 0.472, lig: {'96': 62}},
  670:     // 40 - 4F
  671:     {c: '@', h: 0.694, w: 0.778},
  672:     {c: 'A', h: 0.683, w: 0.75, krn: {'116': -0.0278, '67': -0.0278, '79': -0.0278, '71': -0.0278, '85': -0.0278, '81': -0.0278, '84': -0.0833, '89': -0.0833, '86': -0.111, '87': -0.111}},
  673:     {c: 'B', h: 0.683, w: 0.708},
  674:     {c: 'C', h: 0.683, w: 0.722},
  675:     {c: 'D', h: 0.683, w: 0.764, krn: {'88': -0.0278, '87': -0.0278, '65': -0.0278, '86': -0.0278, '89': -0.0278}},
  676:     {c: 'E', h: 0.683, w: 0.681},
  677:     {c: 'F', h: 0.683, w: 0.653, krn: {'111': -0.0833, '101': -0.0833, '117': -0.0833, '114': -0.0833, '97': -0.0833, '65': -0.111, '79': -0.0278, '67': -0.0278, '71': -0.0278, '81': -0.0278}},
  678:     {c: 'G', h: 0.683, w: 0.785},
  679:     {c: 'H', h: 0.683, w: 0.75},
  680:     {c: 'I', h: 0.683, w: 0.361, krn: {'73': 0.0278}},
  681:     {c: 'J', h: 0.683, w: 0.514},
  682:     {c: 'K', h: 0.683, w: 0.778, krn: {'79': -0.0278, '67': -0.0278, '71': -0.0278, '81': -0.0278}},
  683:     {c: 'L', h: 0.683, w: 0.625, krn: {'84': -0.0833, '89': -0.0833, '86': -0.111, '87': -0.111}},
  684:     {c: 'M', h: 0.683, w: 0.917},
  685:     {c: 'N', h: 0.683, w: 0.75},
  686:     {c: 'O', h: 0.683, w: 0.778, krn: {'88': -0.0278, '87': -0.0278, '65': -0.0278, '86': -0.0278, '89': -0.0278}},
  687:     // 50 - 5F
  688:     {c: 'P', h: 0.683, w: 0.681, krn: {'65': -0.0833, '111': -0.0278, '101': -0.0278, '97': -0.0278, '46': -0.0833, '44': -0.0833}},
  689:     {c: 'Q', h: 0.683, d: 0.194, w: 0.778},
  690:     {c: 'R', h: 0.683, w: 0.736, krn: {'116': -0.0278, '67': -0.0278, '79': -0.0278, '71': -0.0278, '85': -0.0278, '81': -0.0278, '84': -0.0833, '89': -0.0833, '86': -0.111, '87': -0.111}},
  691:     {c: 'S', h: 0.683, w: 0.556},
  692:     {c: 'T', h: 0.683, w: 0.722, krn: {'121': -0.0278, '101': -0.0833, '111': -0.0833, '114': -0.0833, '97': -0.0833, '65': -0.0833, '117': -0.0833}},
  693:     {c: 'U', h: 0.683, w: 0.75},
  694:     {c: 'V', h: 0.683, w: 0.75, ic: 0.0139, krn: {'111': -0.0833, '101': -0.0833, '117': -0.0833, '114': -0.0833, '97': -0.0833, '65': -0.111, '79': -0.0278, '67': -0.0278, '71': -0.0278, '81': -0.0278}},
  695:     {c: 'W', h: 0.683, w: 1.03, ic: 0.0139, krn: {'111': -0.0833, '101': -0.0833, '117': -0.0833, '114': -0.0833, '97': -0.0833, '65': -0.111, '79': -0.0278, '67': -0.0278, '71': -0.0278, '81': -0.0278}},
  696:     {c: 'X', h: 0.683, w: 0.75, krn: {'79': -0.0278, '67': -0.0278, '71': -0.0278, '81': -0.0278}},
  697:     {c: 'Y', h: 0.683, w: 0.75, ic: 0.025, krn: {'101': -0.0833, '111': -0.0833, '114': -0.0833, '97': -0.0833, '65': -0.0833, '117': -0.0833}},
  698:     {c: 'Z', h: 0.683, w: 0.611},
  699:     {c: '[', h: 0.75, d: 0.25, w: 0.278},
  700:     {c: '\\', h: 0.694, w: 0.5},
  701:     {c: ']', h: 0.75, d: 0.25, w: 0.278},
  702:     {c: '^', h: 0.694, w: 0.5},
  703:     {c: '_', h: 0.668, w: 0.278},
  704:     // 60 - 6F
  705:     {c: '&#x60;', h: 0.694, w: 0.278, lig: {'96': 92}},
  706:     {c: 'a', h: 0.431, w: 0.5, krn: {'118': -0.0278, '106': 0.0556, '121': -0.0278, '119': -0.0278}},
  707:     {c: 'b', h: 0.694, w: 0.556, krn: {'101': 0.0278, '111': 0.0278, '120': -0.0278, '100': 0.0278, '99': 0.0278, '113': 0.0278, '118': -0.0278, '106': 0.0556, '121': -0.0278, '119': -0.0278}},
  708:     {c: 'c', h: 0.431, w: 0.444, krn: {'104': -0.0278, '107': -0.0278}},
  709:     {c: 'd', h: 0.694, w: 0.556},
  710:     {c: 'e', h: 0.431, w: 0.444},
  711:     {c: 'f', h: 0.694, w: 0.306, ic: 0.0778, krn: {'39': 0.0778, '63': 0.0778, '33': 0.0778, '41': 0.0778, '93': 0.0778}, lig: {'105': 12, '102': 11, '108': 13}},
  712:     {c: 'g', h: 0.431, d: 0.194, w: 0.5, ic: 0.0139, krn: {'106': 0.0278}},
  713:     {c: 'h', h: 0.694, w: 0.556, krn: {'116': -0.0278, '117': -0.0278, '98': -0.0278, '121': -0.0278, '118': -0.0278, '119': -0.0278}},
  714:     {c: 'i', h: 0.668, w: 0.278},
  715:     {c: 'j', h: 0.668, d: 0.194, w: 0.306},
  716:     {c: 'k', h: 0.694, w: 0.528, krn: {'97': -0.0556, '101': -0.0278, '97': -0.0278, '111': -0.0278, '99': -0.0278}},
  717:     {c: 'l', h: 0.694, w: 0.278},
  718:     {c: 'm', h: 0.431, w: 0.833, krn: {'116': -0.0278, '117': -0.0278, '98': -0.0278, '121': -0.0278, '118': -0.0278, '119': -0.0278}},
  719:     {c: 'n', h: 0.431, w: 0.556, krn: {'116': -0.0278, '117': -0.0278, '98': -0.0278, '121': -0.0278, '118': -0.0278, '119': -0.0278}},
  720:     {c: 'o', h: 0.431, w: 0.5, krn: {'101': 0.0278, '111': 0.0278, '120': -0.0278, '100': 0.0278, '99': 0.0278, '113': 0.0278, '118': -0.0278, '106': 0.0556, '121': -0.0278, '119': -0.0278}},
  721:     // 70 - 7F
  722:     {c: 'p', h: 0.431, d: 0.194, w: 0.556, krn: {'101': 0.0278, '111': 0.0278, '120': -0.0278, '100': 0.0278, '99': 0.0278, '113': 0.0278, '118': -0.0278, '106': 0.0556, '121': -0.0278, '119': -0.0278}},
  723:     {c: 'q', h: 0.431, d: 0.194, w: 0.528},
  724:     {c: 'r', h: 0.431, w: 0.392},
  725:     {c: 's', h: 0.431, w: 0.394},
  726:     {c: 't', h: 0.615, w: 0.389, krn: {'121': -0.0278, '119': -0.0278}},
  727:     {c: 'u', h: 0.431, w: 0.556, krn: {'119': -0.0278}},
  728:     {c: 'v', h: 0.431, w: 0.528, ic: 0.0139, krn: {'97': -0.0556, '101': -0.0278, '97': -0.0278, '111': -0.0278, '99': -0.0278}},
  729:     {c: 'w', h: 0.431, w: 0.722, ic: 0.0139, krn: {'101': -0.0278, '97': -0.0278, '111': -0.0278, '99': -0.0278}},
  730:     {c: 'x', h: 0.431, w: 0.528},
  731:     {c: 'y', h: 0.431, d: 0.194, w: 0.528, ic: 0.0139, krn: {'111': -0.0278, '101': -0.0278, '97': -0.0278, '46': -0.0833, '44': -0.0833}},
  732:     {c: 'z', h: 0.431, w: 0.444},
  733:     {c: '&#x7B;', h: 0.431, w: 0.5, ic: 0.0278, lig: {'45': 124}},
  734:     {c: '&#x7C;', h: 0.431, w: 1, ic: 0.0278},
  735:     {c: '&#x7D;', h: 0.694, w: 0.5},
  736:     {c: '&#x7E;', h: 0.668, w: 0.5},
  737:     {c: '&#xC4;', h: 0.668, w: 0.5}
  738:   ],
  739:   
  740:   cmmi10: [
  741:     // 00 - 0F
  742:     {c: '&#xA1;', h: 0.683, w: 0.615, ic: 0.139, krn: {'61': -0.0556, '59': -0.111, '58': -0.111, '127': 0.0833}},
  743:     {c: '&#xA2;', h: 0.683, w: 0.833, krn: {'127': 0.167}},
  744:     {c: '&#xA3;', h: 0.683, w: 0.763, ic: 0.0278, krn: {'127': 0.0833}},
  745:     {c: '&#xA4;', h: 0.683, w: 0.694, krn: {'127': 0.167}},
  746:     {c: '&#xA5;', h: 0.683, w: 0.742, ic: 0.0757, krn: {'127': 0.0833}},
  747:     {c: '&#xA6;', h: 0.683, w: 0.831, ic: 0.0812, krn: {'61': -0.0556, '59': -0.0556, '58': -0.0556, '127': 0.0556}},
  748:     {c: '&#xA7;', h: 0.683, w: 0.78, ic: 0.0576, krn: {'127': 0.0833}},
  749:     {c: '&#xA8;', h: 0.683, w: 0.583, ic: 0.139, krn: {'61': -0.0556, '59': -0.111, '58': -0.111, '127': 0.0556}},
  750:     {c: '&#xA9;', h: 0.683, w: 0.667, krn: {'127': 0.0833}},
  751:     {c: '&#xAA;', h: 0.683, w: 0.612, ic: 0.11, krn: {'61': -0.0556, '59': -0.0556, '58': -0.0556, '127': 0.0556}},
  752:     {c: '&#xAD;', h: 0.683, w: 0.772, ic: 0.0502, krn: {'127': 0.0833}},
  753:     {c: '&#xAE;', h: 0.431, w: 0.64, ic: 0.0037, krn: {'127': 0.0278}},
  754:     {c: '&#xAF;', h: 0.694, d: 0.194, w: 0.566, ic: 0.0528, krn: {'127': 0.0833}},
  755:     {c: '&#xB0;', h: 0.431, d: 0.194, w: 0.518, ic: 0.0556},
  756:     {c: '&#xB1;', h: 0.694, w: 0.444, ic: 0.0378, krn: {'59': -0.0556, '58': -0.0556, '127': 0.0556}},
  757:     {c: '&#xB2;', h: 0.431, w: 0.406, krn: {'127': 0.0556}},
  758:     // 10 - 1F
  759:     {c: '&#xB3;', h: 0.694, d: 0.194, w: 0.438, ic: 0.0738, krn: {'127': 0.0833}},
  760:     {c: '&#xB4;', h: 0.431, d: 0.194, w: 0.497, ic: 0.0359, krn: {'127': 0.0556}},
  761:     {c: '&#xB5;', h: 0.694, w: 0.469, ic: 0.0278, krn: {'127': 0.0833}},
  762:     {c: '&#xB6;', h: 0.431, w: 0.354, krn: {'127': 0.0556}},
  763:     {c: '&#x2219;', h: 0.431, w: 0.576},
  764:     {c: '&#xB8;', h: 0.694, w: 0.583},
  765:     {c: '&#xB9;', h: 0.431, d: 0.194, w: 0.603, krn: {'127': 0.0278}},
  766:     {c: '&#xBA;', h: 0.431, w: 0.494, ic: 0.0637, krn: {'59': -0.0556, '58': -0.0556, '127': 0.0278}},
  767:     {c: '&#xBB;', h: 0.694, d: 0.194, w: 0.438, ic: 0.046, krn: {'127': 0.111}},
  768:     {c: '&#xBC;', h: 0.431, w: 0.57, ic: 0.0359},
  769:     {c: '&#xBD;', h: 0.431, d: 0.194, w: 0.517, krn: {'127': 0.0833}},
  770:     {c: '&#xBE;', h: 0.431, w: 0.571, ic: 0.0359, krn: {'59': -0.0556, '58': -0.0556}},
  771:     {c: '&#xBF;', h: 0.431, w: 0.437, ic: 0.113, krn: {'59': -0.0556, '58': -0.0556, '127': 0.0278}},
  772:     {c: '&#xC0;', h: 0.431, w: 0.54, ic: 0.0359, krn: {'127': 0.0278}},
  773:     {c: '&#xC1;', h: 0.694, d: 0.194, w: 0.596, krn: {'127': 0.0833}},
  774:     {c: '&#xC2;', h: 0.431, d: 0.194, w: 0.626, krn: {'127': 0.0556}},
  775:     // 20 - 2F
  776:     {c: '&#xC3;', h: 0.694, d: 0.194, w: 0.651, ic: 0.0359, krn: {'127': 0.111}},
  777:     {c: '!', h: 0.431, w: 0.622, ic: 0.0359},
  778:     {c: '"', h: 0.431, w: 0.466, krn: {'127': 0.0833}},
  779:     {c: '#', h: 0.694, w: 0.591, krn: {'127': 0.0833}},
  780:     {c: '$', h: 0.431, w: 0.828, ic: 0.0278},
  781:     {c: '%', h: 0.431, d: 0.194, w: 0.517, krn: {'127': 0.0833}},
  782:     {c: '&#x26;', h: 0.431, d: 0.0972, w: 0.363, ic: 0.0799, krn: {'127': 0.0833}},
  783:     {c: '\'', h: 0.431, d: 0.194, w: 0.654, krn: {'127': 0.0833}},
  784:     {c: '(', h: 0.367, d: -0.133, w: 1},
  785:     {c: ')', h: 0.367, d: -0.133, w: 1},
  786:     {c: '*', h: 0.367, d: -0.133, w: 1},
  787:     {c: '+', h: 0.367, d: -0.133, w: 1},
  788:     {c: ',', h: 0.464, d: -0.0363, w: 0.278},
  789:     {c: '-', h: 0.464, d: -0.0363, w: 0.278},
  790:     {c: '.', h: 0.465, d: -0.0347, w: 0.5},
  791:     {c: '/', h: 0.465, d: -0.0347, w: 0.5},
  792:     // 30 - 3F
  793:     {c: '0', h: 0.431, w: 0.5},
  794:     {c: '1', h: 0.431, w: 0.5},
  795:     {c: '2', h: 0.431, w: 0.5},
  796:     {c: '3', h: 0.431, d: 0.194, w: 0.5},
  797:     {c: '4', h: 0.431, d: 0.194, w: 0.5},
  798:     {c: '5', h: 0.431, d: 0.194, w: 0.5},
  799:     {c: '6', h: 0.644, w: 0.5},
  800:     {c: '7', h: 0.431, d: 0.194, w: 0.5},
  801:     {c: '8', h: 0.644, w: 0.5},
  802:     {c: '9', h: 0.431, d: 0.194, w: 0.5},
  803:     {c: ':', h: 0.106, w: 0.278},
  804:     {c: ';', h: 0.106, d: 0.194, w: 0.278},
  805:     {c: '&#x3C;', h: 0.539, d: 0.0391, w: 0.778},
  806:     {c: '=', h: 0.75, d: 0.25, w: 0.5, krn: {'1': -0.0556, '65': -0.0556, '77': -0.0556, '78': -0.0556, '89': 0.0556, '90': -0.0556}},
  807:     {c: '&#x3E;', h: 0.539, d: 0.0391, w: 0.778},
  808:     {c: '?', h: 0.465, d: -0.0347, w: 0.5},
  809:     // 40 - 4F
  810:     {c: '@', h: 0.694, w: 0.531, ic: 0.0556, krn: {'127': 0.0833}},
  811:     {c: 'A', h: 0.683, w: 0.75, krn: {'127': 0.139}},
  812:     {c: 'B', h: 0.683, w: 0.759, ic: 0.0502, krn: {'127': 0.0833}},
  813:     {c: 'C', h: 0.683, w: 0.715, ic: 0.0715, krn: {'61': -0.0278, '59': -0.0556, '58': -0.0556, '127': 0.0833}},
  814:     {c: 'D', h: 0.683, w: 0.828, ic: 0.0278, krn: {'127': 0.0556}},
  815:     {c: 'E', h: 0.683, w: 0.738, ic: 0.0576, krn: {'127': 0.0833}},
  816:     {c: 'F', h: 0.683, w: 0.643, ic: 0.139, krn: {'61': -0.0556, '59': -0.111, '58': -0.111, '127': 0.0833}},
  817:     {c: 'G', h: 0.683, w: 0.786, krn: {'127': 0.0833}},
  818:     {c: 'H', h: 0.683, w: 0.831, ic: 0.0812, krn: {'61': -0.0556, '59': -0.0556, '58': -0.0556, '127': 0.0556}},
  819:     {c: 'I', h: 0.683, w: 0.44, ic: 0.0785, krn: {'127': 0.111}},
  820:     {c: 'J', h: 0.683, w: 0.555, ic: 0.0962, krn: {'61': -0.0556, '59': -0.111, '58': -0.111, '127': 0.167}},
  821:     {c: 'K', h: 0.683, w: 0.849, ic: 0.0715, krn: {'61': -0.0556, '59': -0.0556, '58': -0.0556, '127': 0.0556}},
  822:     {c: 'L', h: 0.683, w: 0.681, krn: {'127': 0.0278}},
  823:     {c: 'M', h: 0.683, w: 0.97, ic: 0.109, krn: {'61': -0.0556, '59': -0.0556, '58': -0.0556, '127': 0.0833}},
  824:     {c: 'N', h: 0.683, w: 0.803, ic: 0.109, krn: {'61': -0.0833, '61': -0.0278, '59': -0.0556, '58': -0.0556, '127': 0.0833}},
  825:     {c: 'O', h: 0.683, w: 0.763, ic: 0.0278, krn: {'127': 0.0833}},
  826:     // 50 - 5F
  827:     {c: 'P', h: 0.683, w: 0.642, ic: 0.139, krn: {'61': -0.0556, '59': -0.111, '58': -0.111, '127': 0.0833}},
  828:     {c: 'Q', h: 0.683, d: 0.194, w: 0.791, krn: {'127': 0.0833}},
  829:     {c: 'R', h: 0.683, w: 0.759, ic: 0.00773, krn: {'127': 0.0833}},
  830:     {c: 'S', h: 0.683, w: 0.613, ic: 0.0576, krn: {'61': -0.0556, '59': -0.0556, '58': -0.0556, '127': 0.0833}},
  831:     {c: 'T', h: 0.683, w: 0.584, ic: 0.139, krn: {'61': -0.0278, '59': -0.0556, '58': -0.0556, '127': 0.0833}},
  832:     {c: 'U', h: 0.683, w: 0.683, ic: 0.109, krn: {'59': -0.111, '58': -0.111, '61': -0.0556, '127': 0.0278}},
  833:     {c: 'V', h: 0.683, w: 0.583, ic: 0.222, krn: {'59': -0.167, '58': -0.167, '61': -0.111}},
  834:     {c: 'W', h: 0.683, w: 0.944, ic: 0.139, krn: {'59': -0.167, '58': -0.167, '61': -0.111}},
  835:     {c: 'X', h: 0.683, w: 0.828, ic: 0.0785, krn: {'61': -0.0833, '61': -0.0278, '59': -0.0556, '58': -0.0556, '127': 0.0833}},
  836:     {c: 'Y', h: 0.683, w: 0.581, ic: 0.222, krn: {'59': -0.167, '58': -0.167, '61': -0.111}},
  837:     {c: 'Z', h: 0.683, w: 0.683, ic: 0.0715, krn: {'61': -0.0556, '59': -0.0556, '58': -0.0556, '127': 0.0833}},
  838:     {c: '[', h: 0.75, w: 0.389},
  839:     {c: '\\', h: 0.694, d: 0.194, w: 0.389},
  840:     {c: ']', h: 0.694, d: 0.194, w: 0.389},
  841:     {c: '^', h: 0.358, d: -0.142, w: 1},
  842:     {c: '_', h: 0.358, d: -0.142, w: 1},
  843:     // 60 - 6F
  844:     {c: '&#x60;', h: 0.694, w: 0.417, krn: {'127': 0.111}},
  845:     {c: 'a', h: 0.431, w: 0.529},
  846:     {c: 'b', h: 0.694, w: 0.429},
  847:     {c: 'c', h: 0.431, w: 0.433, krn: {'127': 0.0556}},
  848:     {c: 'd', h: 0.694, w: 0.52, krn: {'89': 0.0556, '90': -0.0556, '106': -0.111, '102': -0.167, '127': 0.167}},
  849:     {c: 'e', h: 0.431, w: 0.466, krn: {'127': 0.0556}},
  850:     {c: 'f', h: 0.694, d: 0.194, w: 0.49, ic: 0.108, krn: {'59': -0.0556, '58': -0.0556, '127': 0.167}},
  851:     {c: 'g', h: 0.431, d: 0.194, w: 0.477, ic: 0.0359, krn: {'127': 0.0278}},
  852:     {c: 'h', h: 0.694, w: 0.576, krn: {'127': -0.0278}},
  853:     {c: 'i', h: 0.66, w: 0.345},
  854:     {c: 'j', h: 0.66, d: 0.194, w: 0.412, ic: 0.0572, krn: {'59': -0.0556, '58': -0.0556}},
  855:     {c: 'k', h: 0.694, w: 0.521, ic: 0.0315},
  856:     {c: 'l', h: 0.694, w: 0.298, ic: 0.0197, krn: {'127': 0.0833}},
  857:     {c: 'm', h: 0.431, w: 0.878},
  858:     {c: 'n', h: 0.431, w: 0.6},
  859:     {c: 'o', h: 0.431, w: 0.485, krn: {'127': 0.0556}},
  860:     // 70 - 7F
  861:     {c: 'p', h: 0.431, d: 0.194, w: 0.503, krn: {'127': 0.0833}},
  862:     {c: 'q', h: 0.431, d: 0.194, w: 0.446, ic: 0.0359, krn: {'127': 0.0833}},
  863:     {c: 'r', h: 0.431, w: 0.451, ic: 0.0278, krn: {'59': -0.0556, '58': -0.0556, '127': 0.0556}},
  864:     {c: 's', h: 0.431, w: 0.469, krn: {'127': 0.0556}},
  865:     {c: 't', h: 0.615, w: 0.361, krn: {'127': 0.0833}},
  866:     {c: 'u', h: 0.431, w: 0.572, krn: {'127': 0.0278}},
  867:     {c: 'v', h: 0.431, w: 0.485, ic: 0.0359, krn: {'127': 0.0278}},
  868:     {c: 'w', h: 0.431, w: 0.716, ic: 0.0269, krn: {'127': 0.0833}},
  869:     {c: 'x', h: 0.431, w: 0.572, krn: {'127': 0.0278}},
  870:     {c: 'y', h: 0.431, d: 0.194, w: 0.49, ic: 0.0359, krn: {'127': 0.0556}},
  871:     {c: 'z', h: 0.431, w: 0.465, ic: 0.044, krn: {'127': 0.0556}},
  872:     {c: '&#x7B;', h: 0.431, w: 0.322, krn: {'127': 0.0278}},
  873:     {c: '&#x7C;', h: 0.431, d: 0.194, w: 0.384, krn: {'127': 0.0833}},
  874:     {c: '&#x7D;', h: 0.431, d: 0.194, w: 0.636, krn: {'127': 0.111}},
  875:     {c: '&#x7E;', h: 0.714, w: 0.5, ic: 0.154},
  876:     {c: '&#xC4;', h: 0.694, w: 0.278, ic: 0.399}
  877:   ],
  878: 
  879:   cmsy10: [
  880:     // 00 - 0F
  881:     {c: '&#xA1;', h: 0.583, d: 0.0833, w: 0.778},
  882:     {c: '&#xA2;', h: 0.444, d: -0.0556, w: 0.278},
  883:     {c: '&#xA3;', h: 0.583, d: 0.0833, w: 0.778},
  884:     {c: '&#xA4;', h: 0.465, d: -0.0347, w: 0.5},
  885:     {c: '&#xA5;', h: 0.583, d: 0.0833, w: 0.778},
  886:     {c: '&#xA6;', h: 0.444, d: -0.0556, w: 0.5},
  887:     {c: '&#xA7;', h: 0.583, d: 0.0833, w: 0.778},
  888:     {c: '&#xA8;', h: 0.583, d: 0.0833, w: 0.778},
  889:     {c: '&#xA9;', h: 0.583, d: 0.0833, w: 0.778},
  890:     {c: '&#xAA;', h: 0.583, d: 0.0833, w: 0.778},
  891:     {c: '&#xAD;', h: 0.583, d: 0.0833, w: 0.778},
  892:     {c: '&#xAE;', h: 0.583, d: 0.0833, w: 0.778},
  893:     {c: '&#xAF;', h: 0.583, d: 0.0833, w: 0.778},
  894:     {c: '&#xB0;', h: 0.694, d: 0.194, w: 1},
  895:     {c: '&#xB1;', h: 0.444, d: -0.0556, w: 0.5},
  896:     {c: '&#xB2;', h: 0.444, d: -0.0556, w: 0.5},
  897:     // 10 - 1F
  898:     {c: '&#xB3;', h: 0.464, d: -0.0363, w: 0.778},
  899:     {c: '&#xB4;', h: 0.464, d: -0.0363, w: 0.778},
  900:     {c: '&#xB5;', h: 0.636, d: 0.136, w: 0.778},
  901:     {c: '&#xB6;', h: 0.636, d: 0.136, w: 0.778},
  902:     {c: '&#x2219;', h: 0.636, d: 0.136, w: 0.778},
  903:     {c: '&#xB8;', h: 0.636, d: 0.136, w: 0.778},
  904:     {c: '&#xB9;', h: 0.636, d: 0.136, w: 0.778},
  905:     {c: '&#xBA;', h: 0.636, d: 0.136, w: 0.778},
  906:     {c: '&#xBB;', h: 0.367, d: -0.133, w: 0.778},
  907:     {c: '&#xBC;', h: 0.483, d: -0.0169, w: 0.778},
  908:     {c: '&#xBD;', h: 0.539, d: 0.0391, w: 0.778},
  909:     {c: '&#xBE;', h: 0.539, d: 0.0391, w: 0.778},
  910:     {c: '&#xBF;', h: 0.539, d: 0.0391, w: 1},
  911:     {c: '&#xC0;', h: 0.539, d: 0.0391, w: 1},
  912:     {c: '&#xC1;', h: 0.539, d: 0.0391, w: 0.778},
  913:     {c: '&#xC2;', h: 0.539, d: 0.0391, w: 0.778},
  914:     // 20 - 2F
  915:     {c: '&#xC3;', h: 0.367, d: -0.133, w: 1},
  916:     {c: '!', h: 0.367, d: -0.133, w: 1},
  917:     {c: '"', h: 0.694, d: 0.194, w: 0.5},
  918:     {c: '#', h: 0.694, d: 0.194, w: 0.5},
  919:     {c: '$', h: 0.367, d: -0.133, w: 1},
  920:     {c: '%', h: 0.694, d: 0.194, w: 1},
  921:     {c: '&#x26;', h: 0.694, d: 0.194, w: 1},
  922:     {c: '\'', h: 0.464, d: -0.0363, w: 0.778},
  923:     {c: '(', h: 0.367, d: -0.133, w: 1},
  924:     {c: ')', h: 0.367, d: -0.133, w: 1},
  925:     {c: '*', h: 0.694, d: 0.194, w: 0.611},
  926:     {c: '+', h: 0.694, d: 0.194, w: 0.611},
  927:     {c: ',', h: 0.367, d: -0.133, w: 1},
  928:     {c: '-', h: 0.694, d: 0.194, w: 1},
  929:     {c: '.', h: 0.694, d: 0.194, w: 1},
  930:     {c: '/', h: 0.431, w: 0.778},
  931:     // 30 - 3F
  932:     {c: '0', h: 0.556, w: 0.275},
  933:     {c: '1', h: 0.431, w: 1},
  934:     {c: '2', h: 0.539, d: 0.0391, w: 0.667},
  935:     {c: '3', h: 0.539, d: 0.0391, w: 0.667},
  936:     {c: '4', h: 0.694, d: 0.194, w: 0.889},
  937:     {c: '5', h: 0.694, d: 0.194, w: 0.889},
  938:     {c: '6', h: 0.694, d: 0.194, w: 0},
  939:     {c: '7', h: 0.367, d: -0.133, w: 0},
  940:     {c: '8', h: 0.694, w: 0.556},
  941:     {c: '9', h: 0.694, w: 0.556},
  942:     {c: ':', h: 0.431, w: 0.667},
  943:     {c: ';', h: 0.75, d: 0.0556, w: 0.5},
  944:     {c: '&#x3C;', h: 0.694, w: 0.722},
  945:     {c: '=', h: 0.694, w: 0.722},
  946:     {c: '&#x3E;', h: 0.694, w: 0.778},
  947:     {c: '?', h: 0.694, w: 0.778},
  948:     // 40 - 4F
  949:     {c: '@', h: 0.694, w: 0.611},
  950:     {c: 'A', h: 0.683, w: 0.798, krn: {'48': 0.194}},
  951:     {c: 'B', h: 0.683, w: 0.657, ic: 0.0304, krn: {'48': 0.139}},
  952:     {c: 'C', h: 0.683, w: 0.527, ic: 0.0583, krn: {'48': 0.139}},
  953:     {c: 'D', h: 0.683, w: 0.771, ic: 0.0278, krn: {'48': 0.0833}},
  954:     {c: 'E', h: 0.683, w: 0.528, ic: 0.0894, krn: {'48': 0.111}},
  955:     {c: 'F', h: 0.683, w: 0.719, ic: 0.0993, krn: {'48': 0.111}},
  956:     {c: 'G', h: 0.683, d: 0.0972, w: 0.595, ic: 0.0593, krn: {'48': 0.111}},
  957:     {c: 'H', h: 0.683, w: 0.845, ic: 0.00965, krn: {'48': 0.111}},
  958:     {c: 'I', h: 0.683, w: 0.545, ic: 0.0738, krn: {'48': 0.0278}},
  959:     {c: 'J', h: 0.683, d: 0.0972, w: 0.678, ic: 0.185, krn: {'48': 0.167}},
  960:     {c: 'K', h: 0.683, w: 0.762, ic: 0.0144, krn: {'48': 0.0556}},
  961:     {c: 'L', h: 0.683, w: 0.69, krn: {'48': 0.139}},
  962:     {c: 'M', h: 0.683, w: 1.2, krn: {'48': 0.139}},
  963:     {c: 'N', h: 0.683, w: 0.82, ic: 0.147, krn: {'48': 0.0833}},
  964:     {c: 'O', h: 0.683, w: 0.796, ic: 0.0278, krn: {'48': 0.111}},
  965:     // 50 - 5F
  966:     {c: 'P', h: 0.683, w: 0.696, ic: 0.0822, krn: {'48': 0.0833}},
  967:     {c: 'Q', h: 0.683, d: 0.0972, w: 0.817, krn: {'48': 0.111}},
  968:     {c: 'R', h: 0.683, w: 0.848, krn: {'48': 0.0833}},
  969:     {c: 'S', h: 0.683, w: 0.606, ic: 0.075, krn: {'48': 0.139}},
  970:     {c: 'T', h: 0.683, w: 0.545, ic: 0.254, krn: {'48': 0.0278}},
  971:     {c: 'U', h: 0.683, w: 0.626, ic: 0.0993, krn: {'48': 0.0833}},
  972:     {c: 'V', h: 0.683, w: 0.613, ic: 0.0822, krn: {'48': 0.0278}},
  973:     {c: 'W', h: 0.683, w: 0.988, ic: 0.0822, krn: {'48': 0.0833}},
  974:     {c: 'X', h: 0.683, w: 0.713, ic: 0.146, krn: {'48': 0.139}},
  975:     {c: 'Y', h: 0.683, d: 0.0972, w: 0.668, ic: 0.0822, krn: {'48': 0.0833}},
  976:     {c: 'Z', h: 0.683, w: 0.725, ic: 0.0794, krn: {'48': 0.139}},
  977:     {c: '[', h: 0.556, w: 0.667},
  978:     {c: '\\', h: 0.556, w: 0.667},
  979:     {c: ']', h: 0.556, w: 0.667},
  980:     {c: '^', h: 0.556, w: 0.667},
  981:     {c: '_', h: 0.556, w: 0.667},
  982:     // 60 - 6F
  983:     {c: '&#x60;', h: 0.694, w: 0.611},
  984:     {c: 'a', h: 0.694, w: 0.611},
  985:     {c: 'b', h: 0.75, d: 0.25, w: 0.444},
  986:     {c: 'c', h: 0.75, d: 0.25, w: 0.444},
  987:     {c: 'd', h: 0.75, d: 0.25, w: 0.444},
  988:     {c: 'e', h: 0.75, d: 0.25, w: 0.444},
  989:     {c: 'f', h: 0.75, d: 0.25, w: 0.5},
  990:     {c: 'g', h: 0.75, d: 0.25, w: 0.5},
  991:     {c: 'h', h: 0.75, d: 0.25, w: 0.389},
  992:     {c: 'i', h: 0.75, d: 0.25, w: 0.389},
  993:     {c: 'j', h: 0.75, d: 0.25, w: 0.278},
  994:     {c: 'k', h: 0.75, d: 0.25, w: 0.5},
  995:     {c: 'l', h: 0.75, d: 0.25, w: 0.5},
  996:     {c: 'm', h: 0.75, d: 0.25, w: 0.611},
  997:     {c: 'n', h: 0.75, d: 0.25, w: 0.5},
  998:     {c: 'o', h: 0.694, d: 0.194, w: 0.278},
  999:     // 70 - 7F
 1000:     {c: 'p', h: 0.04, d: 0.96, w: 0.833},
 1001:     {c: 'q', h: 0.683, w: 0.75},
 1002:     {c: 'r', h: 0.683, w: 0.833},
 1003:     {c: 's', h: 0.694, d: 0.194, w: 0.417, ic: 0.111},
 1004:     {c: 't', h: 0.556, w: 0.667},
 1005:     {c: 'u', h: 0.556, w: 0.667},
 1006:     {c: 'v', h: 0.636, d: 0.136, w: 0.778},
 1007:     {c: 'w', h: 0.636, d: 0.136, w: 0.778},
 1008:     {c: 'x', h: 0.694, d: 0.194, w: 0.444},
 1009:     {c: 'y', h: 0.694, d: 0.194, w: 0.444},
 1010:     {c: 'z', h: 0.694, d: 0.194, w: 0.444},
 1011:     {c: '&#x7B;', h: 0.694, d: 0.194, w: 0.611},
 1012:     {c: '&#x7C;', h: 0.694, d: 0.13, w: 0.778},
 1013:     {c: '&#x7D;', h: 0.694, d: 0.13, w: 0.778},
 1014:     {c: '&#x7E;', h: 0.694, d: 0.13, w: 0.778},
 1015:     {c: '&#xC4;', h: 0.694, d: 0.13, w: 0.778}
 1016:   ],
 1017: 
 1018:   cmex10: [
 1019:     // 00 - 0F
 1020:     {c: '&#xA1;', h: 0.04, d: 1.16, w: 0.458, n: 16},
 1021:     {c: '&#xA2;', h: 0.04, d: 1.16, w: 0.458, n: 17},
 1022:     {c: '&#xA3;', h: 0.04, d: 1.16, w: 0.417, n: 104},
 1023:     {c: '&#xA4;', h: 0.04, d: 1.16, w: 0.417, n: 105},
 1024:     {c: '&#xA5;', h: 0.04, d: 1.16, w: 0.472, n: 106},
 1025:     {c: '&#xA6;', h: 0.04, d: 1.16, w: 0.472, n: 107},
 1026:     {c: '&#xA7;', h: 0.04, d: 1.16, w: 0.472, n: 108},
 1027:     {c: '&#xA8;', h: 0.04, d: 1.16, w: 0.472, n: 109},
 1028:     {c: '&#xA9;', h: 0.04, d: 1.16, w: 0.583, n: 110},
 1029:     {c: '&#xAA;', h: 0.04, d: 1.16, w: 0.583, n: 111},
 1030:     {c: '&#xAD;', h: 0.04, d: 1.16, w: 0.472, n: 68},
 1031:     {c: '&#xAE;', h: 0.04, d: 1.16, w: 0.472, n: 69},
 1032:     {c: '&#xAF;', d: 0.6, w: 0.333, delim: {rep: 12}},
 1033:     {c: '&#xB0;', d: 0.6, w: 0.556, delim: {rep: 13}},
 1034:     {c: '&#xB1;', h: 0.04, d: 1.16, w: 0.578, n: 46},
 1035:     {c: '&#xB2;', h: 0.04, d: 1.16, w: 0.578, n: 47},
 1036:     // 10 - 1F
 1037:     {c: '&#xB3;', h: 0.04, d: 1.76, w: 0.597, n: 18},
 1038:     {c: '&#xB4;', h: 0.04, d: 1.76, w: 0.597, n: 19},
 1039:     {c: '&#xB5;', h: 0.04, d: 2.36, w: 0.736, n: 32},
 1040:     {c: '&#xB6;', h: 0.04, d: 2.36, w: 0.736, n: 33},
 1041:     {c: '&#x2219;', h: 0.04, d: 2.36, w: 0.528, n: 34},
 1042:     {c: '&#xB8;', h: 0.04, d: 2.36, w: 0.528, n: 35},
 1043:     {c: '&#xB9;', h: 0.04, d: 2.36, w: 0.583, n: 36},
 1044:     {c: '&#xBA;', h: 0.04, d: 2.36, w: 0.583, n: 37},
 1045:     {c: '&#xBB;', h: 0.04, d: 2.36, w: 0.583, n: 38},
 1046:     {c: '&#xBC;', h: 0.04, d: 2.36, w: 0.583, n: 39},
 1047:     {c: '&#xBD;', h: 0.04, d: 2.36, w: 0.75, n: 40},
 1048:     {c: '&#xBE;', h: 0.04, d: 2.36, w: 0.75, n: 41},
 1049:     {c: '&#xBF;', h: 0.04, d: 2.36, w: 0.75, n: 42},
 1050:     {c: '&#xC0;', h: 0.04, d: 2.36, w: 0.75, n: 43},
 1051:     {c: '&#xC1;', h: 0.04, d: 2.36, w: 1.04, n: 44},
 1052:     {c: '&#xC2;', h: 0.04, d: 2.36, w: 1.04, n: 45},
 1053:     // 20 - 2F
 1054:     {c: '&#xC3;', h: 0.04, d: 2.96, w: 0.792, n: 48},
 1055:     {c: '!', h: 0.04, d: 2.96, w: 0.792, n: 49},
 1056:     {c: '"', h: 0.04, d: 2.96, w: 0.583, n: 50},
 1057:     {c: '#', h: 0.04, d: 2.96, w: 0.583, n: 51},
 1058:     {c: '$', h: 0.04, d: 2.96, w: 0.639, n: 52},
 1059:     {c: '%', h: 0.04, d: 2.96, w: 0.639, n: 53},
 1060:     {c: '&#x26;', h: 0.04, d: 2.96, w: 0.639, n: 54},
 1061:     {c: '\'', h: 0.04, d: 2.96, w: 0.639, n: 55},
 1062:     {c: '(', h: 0.04, d: 2.96, w: 0.806, n: 56},
 1063:     {c: ')', h: 0.04, d: 2.96, w: 0.806, n: 57},
 1064:     {c: '*', h: 0.04, d: 2.96, w: 0.806},
 1065:     {c: '+', h: 0.04, d: 2.96, w: 0.806},
 1066:     {c: ',', h: 0.04, d: 2.96, w: 1.28},
 1067:     {c: '-', h: 0.04, d: 2.96, w: 1.28},
 1068:     {c: '.', h: 0.04, d: 1.76, w: 0.811, n: 30},
 1069:     {c: '/', h: 0.04, d: 1.76, w: 0.811, n: 31},
 1070:     // 30 - 3F
 1071:     {c: '0', h: 0.04, d: 1.76, w: 0.875, delim: {top: 48, bot: 64, rep: 66}},
 1072:     {c: '1', h: 0.04, d: 1.76, w: 0.875, delim: {top: 49, bot: 65, rep: 67}},
 1073:     {c: '2', h: 0.04, d: 1.76, w: 0.667, delim: {top: 50, bot: 52, rep: 54}},
 1074:     {c: '3', h: 0.04, d: 1.76, w: 0.667, delim: {top: 51, bot: 53, rep: 55}},
 1075:     {c: '4', h: 0.04, d: 1.76, w: 0.667, delim: {bot: 52, rep: 54}},
 1076:     {c: '5', h: 0.04, d: 1.76, w: 0.667, delim: {bot: 53, rep: 55}},
 1077:     {c: '6', d: 0.6, w: 0.667, delim: {top: 50, rep: 54}},
 1078:     {c: '7', d: 0.6, w: 0.667, delim: {top: 51, rep: 55}},
 1079:     {c: '8', d: 0.9, w: 0.889, delim: {top: 56, mid: 60, bot: 58, rep: 62}},
 1080:     {c: '9', d: 0.9, w: 0.889, delim: {top: 57, mid: 61, bot: 59, rep: 62}},
 1081:     {c: ':', d: 0.9, w: 0.889, delim: {top: 56, bot: 58, rep: 62}},
 1082:     {c: ';', d: 0.9, w: 0.889, delim: {top: 57, bot: 59, rep: 62}},
 1083:     {c: '&#x3C;', d: 1.8, w: 0.889, delim: {rep: 63}},
 1084:     {c: '=', d: 1.8, w: 0.889, delim: {rep: 119}},
 1085:     {c: '&#x3E;', d: 0.3, w: 0.889, delim: {rep: 62}},
 1086:     {c: '?', d: 0.6, w: 0.667, delim: {top: 120, bot: 121, rep: 63}},
 1087:     // 40 - 4F
 1088:     {c: '@', h: 0.04, d: 1.76, w: 0.875, delim: {top: 56, bot: 59, rep: 62}},
 1089:     {c: 'A', h: 0.04, d: 1.76, w: 0.875, delim: {top: 57, bot: 58, rep: 62}},
 1090:     {c: 'B', d: 0.6, w: 0.875, delim: {rep: 66}},
 1091:     {c: 'C', d: 0.6, w: 0.875, delim: {rep: 67}},
 1092:     {c: 'D', h: 0.04, d: 1.76, w: 0.611, n: 28},
 1093:     {c: 'E', h: 0.04, d: 1.76, w: 0.611, n: 29},
 1094:     {c: 'F', d: 1, w: 0.833, n: 71},
 1095:     {c: 'G', h: 0.1, d: 1.5, w: 1.11},
 1096:     {c: 'H', d: 1.11, w: 0.472, ic: 0.194, n: 73},
 1097:     {c: 'I', d: 2.22, w: 0.556, ic: 0.444},
 1098:     {c: 'J', d: 1, w: 1.11, n: 75},
 1099:     {c: 'K', h: 0.1, d: 1.5, w: 1.51},
 1100:     {c: 'L', d: 1, w: 1.11, n: 77},
 1101:     {c: 'M', h: 0.1, d: 1.5, w: 1.51},
 1102:     {c: 'N', d: 1, w: 1.11, n: 79},
 1103:     {c: 'O', h: 0.1, d: 1.5, w: 1.51},
 1104:     // 50 - 5F
 1105:     {c: 'P', d: 1, w: 1.06, n: 88},
 1106:     {c: 'Q', d: 1, w: 0.944, n: 89},
 1107:     {c: 'R', d: 1.11, w: 0.472, ic: 0.194, n: 90},
 1108:     {c: 'S', d: 1, w: 0.833, n: 91},
 1109:     {c: 'T', d: 1, w: 0.833, n: 92},
 1110:     {c: 'U', d: 1, w: 0.833, n: 93},
 1111:     {c: 'V', d: 1, w: 0.833, n: 94},
 1112:     {c: 'W', d: 1, w: 0.833, n: 95},
 1113:     {c: 'X', h: 0.1, d: 1.5, w: 1.44},
 1114:     {c: 'Y', h: 0.1, d: 1.5, w: 1.28},
 1115:     {c: 'Z', d: 2.22, w: 0.556, ic: 0.444},
 1116:     {c: '[', h: 0.1, d: 1.5, w: 1.11},
 1117:     {c: '\\', h: 0.1, d: 1.5, w: 1.11},
 1118:     {c: ']', h: 0.1, d: 1.5, w: 1.11},
 1119:     {c: '^', h: 0.1, d: 1.5, w: 1.11},
 1120:     {c: '_', h: 0.1, d: 1.5, w: 1.11},
 1121:     // 60 - 6F
 1122:     {c: '&#x60;', d: 1, w: 0.944, n: 97},
 1123:     {c: 'a', h: 0.1, d: 1.5, w: 1.28},
 1124:     {c: 'b', h: 0.722, w: 0.556, n: 99},
 1125:     {c: 'c', h: 0.75, w: 1, n: 100},
 1126:     {c: 'd', h: 0.75, w: 1.44},
 1127:     {c: 'e', h: 0.722, w: 0.556, n: 102},
 1128:     {c: 'f', h: 0.75, w: 1, n: 103},
 1129:     {c: 'g', h: 0.75, w: 1.44},
 1130:     {c: 'h', h: 0.04, d: 1.76, w: 0.472, n: 20},
 1131:     {c: 'i', h: 0.04, d: 1.76, w: 0.472, n: 21},
 1132:     {c: 'j', h: 0.04, d: 1.76, w: 0.528, n: 22},
 1133:     {c: 'k', h: 0.04, d: 1.76, w: 0.528, n: 23},
 1134:     {c: 'l', h: 0.04, d: 1.76, w: 0.528, n: 24},
 1135:     {c: 'm', h: 0.04, d: 1.76, w: 0.528, n: 25},
 1136:     {c: 'n', h: 0.04, d: 1.76, w: 0.667, n: 26},
 1137:     {c: 'o', h: 0.04, d: 1.76, w: 0.667, n: 27},
 1138:     // 70 - 7F
 1139:     {c: 'p', h: 0.04, d: 1.16, w: 1, n: 113},
 1140:     {c: 'q', h: 0.04, d: 1.76, w: 1, n: 114},
 1141:     {c: 'r', h: 0.04, d: 2.36, w: 1, n: 115},
 1142:     {c: 's', h: 0.04, d: 2.96, w: 1, n: 116},
 1143:     {c: 't', d: 1.8, w: 1.06, delim: {top: 118, bot: 116, rep: 117}},
 1144:     {c: 'u', d: 0.6, w: 1.06},
 1145:     {c: 'v', h: 0.04, d: 0.56, w: 1.06},
 1146:     {c: 'w', d: 0.6, w: 0.778, delim: {top: 126, bot: 127, rep: 119}},
 1147:     {c: 'x', d: 0.6, w: 0.667, delim: {top: 120, rep: 63}},
 1148:     {c: 'y', d: 0.6, w: 0.667, delim: {bot: 121, rep: 63}},
 1149:     {c: 'z', h: 0.12, w: 0.45},
 1150:     {c: '&#x7B;', h: 0.12, w: 0.45},
 1151:     {c: '&#x7C;', h: 0.12, w: 0.45},
 1152:     {c: '&#x7D;', h: 0.12, w: 0.45},
 1153:     {c: '&#x7E;', d: 0.6, w: 0.778, delim: {top: 126, rep: 119}},
 1154:     {c: '&#xC4;', d: 0.6, w: 0.778, delim: {bot: 127, rep: 119}}
 1155:   ],
 1156:   
 1157:   cmti10: [
 1158:     // 00 - 0F
 1159:     {c: '&#xA1;', h: 0.683, w: 0.627, ic: 0.133},
 1160:     {c: '&#xA2;', h: 0.683, w: 0.818},
 1161:     {c: '&#xA3;', h: 0.683, w: 0.767, ic: 0.094},
 1162:     {c: '&#xA4;', h: 0.683, w: 0.692},
 1163:     {c: '&#xA5;', h: 0.683, w: 0.664, ic: 0.153},
 1164:     {c: '&#xA6;', h: 0.683, w: 0.743, ic: 0.164},
 1165:     {c: '&#xA7;', h: 0.683, w: 0.716, ic: 0.12},
 1166:     {c: '&#xA8;', h: 0.683, w: 0.767, ic: 0.111},
 1167:     {c: '&#xA9;', h: 0.683, w: 0.716, ic: 0.0599},
 1168:     {c: '&#xAA;', h: 0.683, w: 0.767, ic: 0.111},
 1169:     {c: '&#xAD;', h: 0.683, w: 0.716, ic: 0.103},
 1170:     {c: '&#xAE;', h: 0.694, d: 0.194, w: 0.613, ic: 0.212, krn: {'39': 0.104, '63': 0.104, '33': 0.104, '41': 0.104, '93': 0.104}, lig: {'105': 14, '108': 15}},
 1171:     {c: '&#xAF;', h: 0.694, d: 0.194, w: 0.562, ic: 0.103},
 1172:     {c: '&#xB0;', h: 0.694, d: 0.194, w: 0.588, ic: 0.103},
 1173:     {c: '&#xB1;', h: 0.694, d: 0.194, w: 0.882, ic: 0.103},
 1174:     {c: '&#xB2;', h: 0.694, d: 0.194, w: 0.894, ic: 0.103},
 1175:     // 10 - 1F
 1176:     {c: '&#xB3;', h: 0.431, w: 0.307, ic: 0.0767},
 1177:     {c: '&#xB4;', h: 0.431, d: 0.194, w: 0.332, ic: 0.0374},
 1178:     {c: '&#xB5;', h: 0.694, w: 0.511},
 1179:     {c: '&#xB6;', h: 0.694, w: 0.511, ic: 0.0969},
 1180:     {c: '&#x2219;', h: 0.628, w: 0.511, ic: 0.083},
 1181:     {c: '&#xB8;', h: 0.694, w: 0.511, ic: 0.108},
 1182:     {c: '&#xB9;', h: 0.562, w: 0.511, ic: 0.103},
 1183:     {c: '&#xBA;', h: 0.694, w: 0.831},
 1184:     {c: '&#xBB;', d: 0.17, w: 0.46},
 1185:     {c: '&#xBC;', h: 0.694, d: 0.194, w: 0.537, ic: 0.105},
 1186:     {c: '&#xBD;', h: 0.431, w: 0.716, ic: 0.0751},
 1187:     {c: '&#xBE;', h: 0.431, w: 0.716, ic: 0.0751},
 1188:     {c: '&#xBF;', h: 0.528, d: 0.0972, w: 0.511, ic: 0.0919},
 1189:     {c: '&#xC0;', h: 0.683, w: 0.883, ic: 0.12},
 1190:     {c: '&#xC1;', h: 0.683, w: 0.985, ic: 0.12},
 1191:     {c: '&#xC2;', h: 0.732, d: 0.0486, w: 0.767, ic: 0.094},
 1192:     // 20 - 2F
 1193:     {c: '&#xC3;', h: 0.431, w: 0.256, krn: {'108': -0.256, '76': -0.321}},
 1194:     {c: '!', h: 0.694, w: 0.307, ic: 0.124, lig: {'96': 60}},
 1195:     {c: '"', h: 0.694, w: 0.514, ic: 0.0696},
 1196:     {c: '#', h: 0.694, d: 0.194, w: 0.818, ic: 0.0662},
 1197:     {c: '$', h: 0.694, w: 0.769},
 1198:     {c: '%', h: 0.75, d: 0.0556, w: 0.818, ic: 0.136},
 1199:     {c: '&#x26;', h: 0.694, w: 0.767, ic: 0.0969},
 1200:     {c: '\'', h: 0.694, w: 0.307, ic: 0.124, krn: {'63': 0.102, '33': 0.102}, lig: {'39': 34}},
 1201:     {c: '(', h: 0.75, d: 0.25, w: 0.409, ic: 0.162},
 1202:     {c: ')', h: 0.75, d: 0.25, w: 0.409, ic: 0.0369},
 1203:     {c: '*', h: 0.75, w: 0.511, ic: 0.149},
 1204:     {c: '+', h: 0.562, d: 0.0567, w: 0.767, ic: 0.0369},
 1205:     {c: ',', h: 0.106, d: 0.194, w: 0.307},
 1206:     {c: '-', h: 0.431, w: 0.358, ic: 0.0283, lig: {'45': 123}},
 1207:     {c: '.', h: 0.106, w: 0.307},
 1208:     {c: '/', h: 0.75, d: 0.25, w: 0.511, ic: 0.162},
 1209:     // 30 - 3F
 1210:     {c: '0', h: 0.644, w: 0.511, ic: 0.136},
 1211:     {c: '1', h: 0.644, w: 0.511, ic: 0.136},
 1212:     {c: '2', h: 0.644, w: 0.511, ic: 0.136},
 1213:     {c: '3', h: 0.644, w: 0.511, ic: 0.136},
 1214:     {c: '4', h: 0.644, d: 0.194, w: 0.511, ic: 0.136},
 1215:     {c: '5', h: 0.644, w: 0.511, ic: 0.136},
 1216:     {c: '6', h: 0.644, w: 0.511, ic: 0.136},
 1217:     {c: '7', h: 0.644, d: 0.194, w: 0.511, ic: 0.136},
 1218:     {c: '8', h: 0.644, w: 0.511, ic: 0.136},
 1219:     {c: '9', h: 0.644, w: 0.511, ic: 0.136},
 1220:     {c: ':', h: 0.431, w: 0.307, ic: 0.0582},
 1221:     {c: ';', h: 0.431, d: 0.194, w: 0.307, ic: 0.0582},
 1222:     {c: '&#x3C;', h: 0.5, d: 0.194, w: 0.307, ic: 0.0756},
 1223:     {c: '=', h: 0.367, d: -0.133, w: 0.767, ic: 0.0662},
 1224:     {c: '&#x3E;', h: 0.5, d: 0.194, w: 0.511},
 1225:     {c: '?', h: 0.694, w: 0.511, ic: 0.122, lig: {'96': 62}},
 1226:     // 40 - 4F
 1227:     {c: '@', h: 0.694, w: 0.767, ic: 0.096},
 1228:     {c: 'A', h: 0.683, w: 0.743, krn: {'110': -0.0256, '108': -0.0256, '114': -0.0256, '117': -0.0256, '109': -0.0256, '116': -0.0256, '105': -0.0256, '67': -0.0256, '79': -0.0256, '71': -0.0256, '104': -0.0256, '98': -0.0256, '85': -0.0256, '107': -0.0256, '118': -0.0256, '119': -0.0256, '81': -0.0256, '84': -0.0767, '89': -0.0767, '86': -0.102, '87': -0.102, '101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1229:     {c: 'B', h: 0.683, w: 0.704, ic: 0.103},
 1230:     {c: 'C', h: 0.683, w: 0.716, ic: 0.145},
 1231:     {c: 'D', h: 0.683, w: 0.755, ic: 0.094, krn: {'88': -0.0256, '87': -0.0256, '65': -0.0256, '86': -0.0256, '89': -0.0256}},
 1232:     {c: 'E', h: 0.683, w: 0.678, ic: 0.12},
 1233:     {c: 'F', h: 0.683, w: 0.653, ic: 0.133, krn: {'111': -0.0767, '101': -0.0767, '117': -0.0767, '114': -0.0767, '97': -0.0767, '65': -0.102, '79': -0.0256, '67': -0.0256, '71': -0.0256, '81': -0.0256}},
 1234:     {c: 'G', h: 0.683, w: 0.774, ic: 0.0872},
 1235:     {c: 'H', h: 0.683, w: 0.743, ic: 0.164},
 1236:     {c: 'I', h: 0.683, w: 0.386, ic: 0.158},
 1237:     {c: 'J', h: 0.683, w: 0.525, ic: 0.14},
 1238:     {c: 'K', h: 0.683, w: 0.769, ic: 0.145, krn: {'79': -0.0256, '67': -0.0256, '71': -0.0256, '81': -0.0256}},
 1239:     {c: 'L', h: 0.683, w: 0.627, krn: {'84': -0.0767, '89': -0.0767, '86': -0.102, '87': -0.102, '101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1240:     {c: 'M', h: 0.683, w: 0.897, ic: 0.164},
 1241:     {c: 'N', h: 0.683, w: 0.743, ic: 0.164},
 1242:     {c: 'O', h: 0.683, w: 0.767, ic: 0.094, krn: {'88': -0.0256, '87': -0.0256, '65': -0.0256, '86': -0.0256, '89': -0.0256}},
 1243:     // 50 - 5F
 1244:     {c: 'P', h: 0.683, w: 0.678, ic: 0.103, krn: {'65': -0.0767}},
 1245:     {c: 'Q', h: 0.683, d: 0.194, w: 0.767, ic: 0.094},
 1246:     {c: 'R', h: 0.683, w: 0.729, ic: 0.0387, krn: {'110': -0.0256, '108': -0.0256, '114': -0.0256, '117': -0.0256, '109': -0.0256, '116': -0.0256, '105': -0.0256, '67': -0.0256, '79': -0.0256, '71': -0.0256, '104': -0.0256, '98': -0.0256, '85': -0.0256, '107': -0.0256, '118': -0.0256, '119': -0.0256, '81': -0.0256, '84': -0.0767, '89': -0.0767, '86': -0.102, '87': -0.102, '101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1247:     {c: 'S', h: 0.683, w: 0.562, ic: 0.12},
 1248:     {c: 'T', h: 0.683, w: 0.716, ic: 0.133, krn: {'121': -0.0767, '101': -0.0767, '111': -0.0767, '114': -0.0767, '97': -0.0767, '117': -0.0767, '65': -0.0767}},
 1249:     {c: 'U', h: 0.683, w: 0.743, ic: 0.164},
 1250:     {c: 'V', h: 0.683, w: 0.743, ic: 0.184, krn: {'111': -0.0767, '101': -0.0767, '117': -0.0767, '114': -0.0767, '97': -0.0767, '65': -0.102, '79': -0.0256, '67': -0.0256, '71': -0.0256, '81': -0.0256}},
 1251:     {c: 'W', h: 0.683, w: 0.999, ic: 0.184, krn: {'65': -0.0767}},
 1252:     {c: 'X', h: 0.683, w: 0.743, ic: 0.158, krn: {'79': -0.0256, '67': -0.0256, '71': -0.0256, '81': -0.0256}},
 1253:     {c: 'Y', h: 0.683, w: 0.743, ic: 0.194, krn: {'101': -0.0767, '111': -0.0767, '114': -0.0767, '97': -0.0767, '117': -0.0767, '65': -0.0767}},
 1254:     {c: 'Z', h: 0.683, w: 0.613, ic: 0.145},
 1255:     {c: '[', h: 0.75, d: 0.25, w: 0.307, ic: 0.188},
 1256:     {c: '\\', h: 0.694, w: 0.514, ic: 0.169},
 1257:     {c: ']', h: 0.75, d: 0.25, w: 0.307, ic: 0.105},
 1258:     {c: '^', h: 0.694, w: 0.511, ic: 0.0665},
 1259:     {c: '_', h: 0.668, w: 0.307, ic: 0.118},
 1260:     // 60 - 6F
 1261:     {c: '&#x60;', h: 0.694, w: 0.307, ic: 0.124, lig: {'96': 92}},
 1262:     {c: 'a', h: 0.431, w: 0.511, ic: 0.0767},
 1263:     {c: 'b', h: 0.694, w: 0.46, ic: 0.0631, krn: {'101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1264:     {c: 'c', h: 0.431, w: 0.46, ic: 0.0565, krn: {'101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1265:     {c: 'd', h: 0.694, w: 0.511, ic: 0.103, krn: {'108': 0.0511}},
 1266:     {c: 'e', h: 0.431, w: 0.46, ic: 0.0751, krn: {'101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1267:     {c: 'f', h: 0.694, d: 0.194, w: 0.307, ic: 0.212, krn: {'39': 0.104, '63': 0.104, '33': 0.104, '41': 0.104, '93': 0.104}, lig: {'105': 12, '102': 11, '108': 13}},
 1268:     {c: 'g', h: 0.431, d: 0.194, w: 0.46, ic: 0.0885},
 1269:     {c: 'h', h: 0.694, w: 0.511, ic: 0.0767},
 1270:     {c: 'i', h: 0.655, w: 0.307, ic: 0.102},
 1271:     {c: 'j', h: 0.655, d: 0.194, w: 0.307, ic: 0.145},
 1272:     {c: 'k', h: 0.694, w: 0.46, ic: 0.108},
 1273:     {c: 'l', h: 0.694, w: 0.256, ic: 0.103, krn: {'108': 0.0511}},
 1274:     {c: 'm', h: 0.431, w: 0.818, ic: 0.0767},
 1275:     {c: 'n', h: 0.431, w: 0.562, ic: 0.0767, krn: {'39': -0.102}},
 1276:     {c: 'o', h: 0.431, w: 0.511, ic: 0.0631, krn: {'101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1277:     // 70 - 7F
 1278:     {c: 'p', h: 0.431, d: 0.194, w: 0.511, ic: 0.0631, krn: {'101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1279:     {c: 'q', h: 0.431, d: 0.194, w: 0.46, ic: 0.0885},
 1280:     {c: 'r', h: 0.431, w: 0.422, ic: 0.108, krn: {'101': -0.0511, '97': -0.0511, '111': -0.0511, '100': -0.0511, '99': -0.0511, '103': -0.0511, '113': -0.0511}},
 1281:     {c: 's', h: 0.431, w: 0.409, ic: 0.0821},
 1282:     {c: 't', h: 0.615, w: 0.332, ic: 0.0949},
 1283:     {c: 'u', h: 0.431, w: 0.537, ic: 0.0767},
 1284:     {c: 'v', h: 0.431, w: 0.46, ic: 0.108},
 1285:     {c: 'w', h: 0.431, w: 0.664, ic: 0.108, krn: {'108': 0.0511}},
 1286:     {c: 'x', h: 0.431, w: 0.464, ic: 0.12},
 1287:     {c: 'y', h: 0.431, d: 0.194, w: 0.486, ic: 0.0885},
 1288:     {c: 'z', h: 0.431, w: 0.409, ic: 0.123},
 1289:     {c: '&#x7B;', h: 0.431, w: 0.511, ic: 0.0921, lig: {'45': 124}},
 1290:     {c: '&#x7C;', h: 0.431, w: 1.02, ic: 0.0921},
 1291:     {c: '&#x7D;', h: 0.694, w: 0.511, ic: 0.122},
 1292:     {c: '&#x7E;', h: 0.668, w: 0.511, ic: 0.116},
 1293:     {c: '&#xC4;', h: 0.668, w: 0.511, ic: 0.105}
 1294:   ],
 1295:   
 1296:   cmbx10: [
 1297:     // 00 - 0F
 1298:     {c: '&#xA1;', h: 0.686, w: 0.692},
 1299:     {c: '&#xA2;', h: 0.686, w: 0.958},
 1300:     {c: '&#xA3;', h: 0.686, w: 0.894},
 1301:     {c: '&#xA4;', h: 0.686, w: 0.806},
 1302:     {c: '&#xA5;', h: 0.686, w: 0.767},
 1303:     {c: '&#xA6;', h: 0.686, w: 0.9},
 1304:     {c: '&#xA7;', h: 0.686, w: 0.831},
 1305:     {c: '&#xA8;', h: 0.686, w: 0.894},
 1306:     {c: '&#xA9;', h: 0.686, w: 0.831},
 1307:     {c: '&#xAA;', h: 0.686, w: 0.894},
 1308:     {c: '&#xAD;', h: 0.686, w: 0.831},
 1309:     {c: '&#xAE;', h: 0.694, w: 0.671, ic: 0.109, krn: {'39': 0.109, '63': 0.109, '33': 0.109, '41': 0.109, '93': 0.109}, lig: {'105': 14, '108': 15}},
 1310:     {c: '&#xAF;', h: 0.694, w: 0.639},
 1311:     {c: '&#xB0;', h: 0.694, w: 0.639},
 1312:     {c: '&#xB1;', h: 0.694, w: 0.958},
 1313:     {c: '&#xB2;', h: 0.694, w: 0.958},
 1314:     // 10 - 1F
 1315:     {c: '&#xB3;', h: 0.444, w: 0.319},
 1316:     {c: '&#xB4;', h: 0.444, d: 0.194, w: 0.351},
 1317:     {c: '&#xB5;', h: 0.694, w: 0.575},
 1318:     {c: '&#xB6;', h: 0.694, w: 0.575},
 1319:     {c: '&#x2219;', h: 0.632, w: 0.575},
 1320:     {c: '&#xB8;', h: 0.694, w: 0.575},
 1321:     {c: '&#xB9;', h: 0.596, w: 0.575},
 1322:     {c: '&#xBA;', h: 0.694, w: 0.869},
 1323:     {c: '&#xBB;', d: 0.17, w: 0.511},
 1324:     {c: '&#xBC;', h: 0.694, w: 0.597},
 1325:     {c: '&#xBD;', h: 0.444, w: 0.831},
 1326:     {c: '&#xBE;', h: 0.444, w: 0.894},
 1327:     {c: '&#xBF;', h: 0.542, d: 0.0972, w: 0.575},
 1328:     {c: '&#xC0;', h: 0.686, w: 1.04},
 1329:     {c: '&#xC1;', h: 0.686, w: 1.17},
 1330:     {c: '&#xC2;', h: 0.735, d: 0.0486, w: 0.894},
 1331:     // 20 - 2F
 1332:     {c: '&#xC3;', h: 0.444, w: 0.319, krn: {'108': -0.319, '76': -0.378}},
 1333:     {c: '!', h: 0.694, w: 0.35, lig: {'96': 60}},
 1334:     {c: '"', h: 0.694, w: 0.603},
 1335:     {c: '#', h: 0.694, d: 0.194, w: 0.958},
 1336:     {c: '$', h: 0.75, d: 0.0556, w: 0.575},
 1337:     {c: '%', h: 0.75, d: 0.0556, w: 0.958},
 1338:     {c: '&#x26;', h: 0.694, w: 0.894},
 1339:     {c: '\'', h: 0.694, w: 0.319, krn: {'63': 0.128, '33': 0.128}, lig: {'39': 34}},
 1340:     {c: '(', h: 0.75, d: 0.25, w: 0.447},
 1341:     {c: ')', h: 0.75, d: 0.25, w: 0.447},
 1342:     {c: '*', h: 0.75, w: 0.575},
 1343:     {c: '+', h: 0.633, d: 0.133, w: 0.894},
 1344:     {c: ',', h: 0.156, d: 0.194, w: 0.319},
 1345:     {c: '-', h: 0.444, w: 0.383, lig: {'45': 123}},
 1346:     {c: '.', h: 0.156, w: 0.319},
 1347:     {c: '/', h: 0.75, d: 0.25, w: 0.575},
 1348:     // 30 - 3F
 1349:     {c: '0', h: 0.644, w: 0.575},
 1350:     {c: '1', h: 0.644, w: 0.575},
 1351:     {c: '2', h: 0.644, w: 0.575},
 1352:     {c: '3', h: 0.644, w: 0.575},
 1353:     {c: '4', h: 0.644, w: 0.575},
 1354:     {c: '5', h: 0.644, w: 0.575},
 1355:     {c: '6', h: 0.644, w: 0.575},
 1356:     {c: '7', h: 0.644, w: 0.575},
 1357:     {c: '8', h: 0.644, w: 0.575},
 1358:     {c: '9', h: 0.644, w: 0.575},
 1359:     {c: ':', h: 0.444, w: 0.319},
 1360:     {c: ';', h: 0.444, d: 0.194, w: 0.319},
 1361:     {c: '&#x3C;', h: 0.5, d: 0.194, w: 0.35},
 1362:     {c: '=', h: 0.391, d: -0.109, w: 0.894},
 1363:     {c: '&#x3E;', h: 0.5, d: 0.194, w: 0.543},
 1364:     {c: '?', h: 0.694, w: 0.543, lig: {'96': 62}},
 1365:     // 40 - 4F
 1366:     {c: '@', h: 0.694, w: 0.894},
 1367:     {c: 'A', h: 0.686, w: 0.869, krn: {'116': -0.0319, '67': -0.0319, '79': -0.0319, '71': -0.0319, '85': -0.0319, '81': -0.0319, '84': -0.0958, '89': -0.0958, '86': -0.128, '87': -0.128}},
 1368:     {c: 'B', h: 0.686, w: 0.818},
 1369:     {c: 'C', h: 0.686, w: 0.831},
 1370:     {c: 'D', h: 0.686, w: 0.882, krn: {'88': -0.0319, '87': -0.0319, '65': -0.0319, '86': -0.0319, '89': -0.0319}},
 1371:     {c: 'E', h: 0.686, w: 0.756},
 1372:     {c: 'F', h: 0.686, w: 0.724, krn: {'111': -0.0958, '101': -0.0958, '117': -0.0958, '114': -0.0958, '97': -0.0958, '65': -0.128, '79': -0.0319, '67': -0.0319, '71': -0.0319, '81': -0.0319}},
 1373:     {c: 'G', h: 0.686, w: 0.904},
 1374:     {c: 'H', h: 0.686, w: 0.9},
 1375:     {c: 'I', h: 0.686, w: 0.436, krn: {'73': 0.0319}},
 1376:     {c: 'J', h: 0.686, w: 0.594},
 1377:     {c: 'K', h: 0.686, w: 0.901, krn: {'79': -0.0319, '67': -0.0319, '71': -0.0319, '81': -0.0319}},
 1378:     {c: 'L', h: 0.686, w: 0.692, krn: {'84': -0.0958, '89': -0.0958, '86': -0.128, '87': -0.128}},
 1379:     {c: 'M', h: 0.686, w: 1.09},
 1380:     {c: 'N', h: 0.686, w: 0.9},
 1381:     {c: 'O', h: 0.686, w: 0.864, krn: {'88': -0.0319, '87': -0.0319, '65': -0.0319, '86': -0.0319, '89': -0.0319}},
 1382:     // 50 - 5F
 1383:     {c: 'P', h: 0.686, w: 0.786, krn: {'65': -0.0958, '111': -0.0319, '101': -0.0319, '97': -0.0319, '46': -0.0958, '44': -0.0958}},
 1384:     {c: 'Q', h: 0.686, d: 0.194, w: 0.864},
 1385:     {c: 'R', h: 0.686, w: 0.862, krn: {'116': -0.0319, '67': -0.0319, '79': -0.0319, '71': -0.0319, '85': -0.0319, '81': -0.0319, '84': -0.0958, '89': -0.0958, '86': -0.128, '87': -0.128}},
 1386:     {c: 'S', h: 0.686, w: 0.639},
 1387:     {c: 'T', h: 0.686, w: 0.8, krn: {'121': -0.0319, '101': -0.0958, '111': -0.0958, '114': -0.0958, '97': -0.0958, '65': -0.0958, '117': -0.0958}},
 1388:     {c: 'U', h: 0.686, w: 0.885},
 1389:     {c: 'V', h: 0.686, w: 0.869, ic: 0.016, krn: {'111': -0.0958, '101': -0.0958, '117': -0.0958, '114': -0.0958, '97': -0.0958, '65': -0.128, '79': -0.0319, '67': -0.0319, '71': -0.0319, '81': -0.0319}},
 1390:     {c: 'W', h: 0.686, w: 1.19, ic: 0.016, krn: {'111': -0.0958, '101': -0.0958, '117': -0.0958, '114': -0.0958, '97': -0.0958, '65': -0.128, '79': -0.0319, '67': -0.0319, '71': -0.0319, '81': -0.0319}},
 1391:     {c: 'X', h: 0.686, w: 0.869, krn: {'79': -0.0319, '67': -0.0319, '71': -0.0319, '81': -0.0319}},
 1392:     {c: 'Y', h: 0.686, w: 0.869, ic: 0.0287, krn: {'101': -0.0958, '111': -0.0958, '114': -0.0958, '97': -0.0958, '65': -0.0958, '117': -0.0958}},
 1393:     {c: 'Z', h: 0.686, w: 0.703},
 1394:     {c: '[', h: 0.75, d: 0.25, w: 0.319},
 1395:     {c: '\\', h: 0.694, w: 0.603},
 1396:     {c: ']', h: 0.75, d: 0.25, w: 0.319},
 1397:     {c: '^', h: 0.694, w: 0.575},
 1398:     {c: '_', h: 0.694, w: 0.319},
 1399:     // 60 - 6F
 1400:     {c: '&#x60;', h: 0.694, w: 0.319, lig: {'96': 92}},
 1401:     {c: 'a', h: 0.444, w: 0.559, krn: {'118': -0.0319, '106': 0.0639, '121': -0.0319, '119': -0.0319}},
 1402:     {c: 'b', h: 0.694, w: 0.639, krn: {'101': 0.0319, '111': 0.0319, '120': -0.0319, '100': 0.0319, '99': 0.0319, '113': 0.0319, '118': -0.0319, '106': 0.0639, '121': -0.0319, '119': -0.0319}},
 1403:     {c: 'c', h: 0.444, w: 0.511, krn: {'104': -0.0319, '107': -0.0319}},
 1404:     {c: 'd', h: 0.694, w: 0.639},
 1405:     {c: 'e', h: 0.444, w: 0.527},
 1406:     {c: 'f', h: 0.694, w: 0.351, ic: 0.109, krn: {'39': 0.109, '63': 0.109, '33': 0.109, '41': 0.109, '93': 0.109}, lig: {'105': 12, '102': 11, '108': 13}},
 1407:     {c: 'g', h: 0.444, d: 0.194, w: 0.575, ic: 0.016, krn: {'106': 0.0319}},
 1408:     {c: 'h', h: 0.694, w: 0.639, krn: {'116': -0.0319, '117': -0.0319, '98': -0.0319, '121': -0.0319, '118': -0.0319, '119': -0.0319}},
 1409:     {c: 'i', h: 0.694, w: 0.319},
 1410:     {c: 'j', h: 0.694, d: 0.194, w: 0.351},
 1411:     {c: 'k', h: 0.694, w: 0.607, krn: {'97': -0.0639, '101': -0.0319, '97': -0.0319, '111': -0.0319, '99': -0.0319}},
 1412:     {c: 'l', h: 0.694, w: 0.319},
 1413:     {c: 'm', h: 0.444, w: 0.958, krn: {'116': -0.0319, '117': -0.0319, '98': -0.0319, '121': -0.0319, '118': -0.0319, '119': -0.0319}},
 1414:     {c: 'n', h: 0.444, w: 0.639, krn: {'116': -0.0319, '117': -0.0319, '98': -0.0319, '121': -0.0319, '118': -0.0319, '119': -0.0319}},
 1415:     {c: 'o', h: 0.444, w: 0.575, krn: {'101': 0.0319, '111': 0.0319, '120': -0.0319, '100': 0.0319, '99': 0.0319, '113': 0.0319, '118': -0.0319, '106': 0.0639, '121': -0.0319, '119': -0.0319}},
 1416:     // 70 - 7F
 1417:     {c: 'p', h: 0.444, d: 0.194, w: 0.639, krn: {'101': 0.0319, '111': 0.0319, '120': -0.0319, '100': 0.0319, '99': 0.0319, '113': 0.0319, '118': -0.0319, '106': 0.0639, '121': -0.0319, '119': -0.0319}},
 1418:     {c: 'q', h: 0.444, d: 0.194, w: 0.607},
 1419:     {c: 'r', h: 0.444, w: 0.474},
 1420:     {c: 's', h: 0.444, w: 0.454},
 1421:     {c: 't', h: 0.635, w: 0.447, krn: {'121': -0.0319, '119': -0.0319}},
 1422:     {c: 'u', h: 0.444, w: 0.639, krn: {'119': -0.0319}},
 1423:     {c: 'v', h: 0.444, w: 0.607, ic: 0.016, krn: {'97': -0.0639, '101': -0.0319, '97': -0.0319, '111': -0.0319, '99': -0.0319}},
 1424:     {c: 'w', h: 0.444, w: 0.831, ic: 0.016, krn: {'101': -0.0319, '97': -0.0319, '111': -0.0319, '99': -0.0319}},
 1425:     {c: 'x', h: 0.444, w: 0.607},
 1426:     {c: 'y', h: 0.444, d: 0.194, w: 0.607, ic: 0.016, krn: {'111': -0.0319, '101': -0.0319, '97': -0.0319, '46': -0.0958, '44': -0.0958}},
 1427:     {c: 'z', h: 0.444, w: 0.511},
 1428:     {c: '&#x7B;', h: 0.444, w: 0.575, ic: 0.0319, lig: {'45': 124}},
 1429:     {c: '&#x7C;', h: 0.444, w: 1.15, ic: 0.0319},
 1430:     {c: '&#x7D;', h: 0.694, w: 0.575},
 1431:     {c: '&#x7E;', h: 0.694, w: 0.575},
 1432:     {c: '&#xC4;', h: 0.694, w: 0.575}
 1433:   ]
 1434: });
 1435: 
 1436: /***************************************************************************/
 1437: 
 1438: /*
 1439:  *  jsMath.HTML handles creation of most of the HTML needed for
 1440:  *  presenting mathematics in HTML pages.
 1441:  */
 1442: 
 1443: jsMath.HTML = {
 1444:   
 1445:   /*
 1446:    *  produce a string version of a measurement in ems,
 1447:    *  showing only a limited number of digits, and 
 1448:    *  using 0 when the value is near zero.
 1449:    */
 1450:   Em: function (m) {
 1451:     var n = 5; if (m < 0) {n++}
 1452:     if (Math.abs(m) < .000001) {m = 0}
 1453:     var s = String(m); s = s.replace(/(\.\d\d\d).+/,'$1');
 1454:     return s+'em'
 1455:   },
 1456: 
 1457:   /*
 1458:    *  Create a horizontal space of width w
 1459:    */
 1460:   Spacer: function (w) {
 1461:     if (w == 0) {return ''};
 1462:     return jsMath.msieSpaceFix
 1463:       + '<SPAN STYLE="margin-left: '+this.Em(w)+'"></SPAN>';
 1464:   },
 1465: 
 1466:   /*
 1467:    *  Use an image to create a horizontal space of width w
 1468:    */
 1469:   SpacerImage: function (w) {
 1470:     if (w == 0) {return ''};
 1471:     return '<IMG SRC="'+jsMath.blank+'" STYLE="'
 1472:              + ' width: 0; margin-left: '+this.Em(w)+'">';
 1473:   },
 1474: 
 1475:   /*
 1476:    *  Create a colored frame (for debugging use)
 1477:    */
 1478:   Frame: function (x,y,w,h,c,pos) {
 1479: 
 1480:     h -= 2/jsMath.em; // use 2 pixels to compensate for border size
 1481:     w -= 2/jsMath.em;
 1482:     y -= 1/jsMath.em;
 1483:     if (!c) {c = 'black'};
 1484:     if (pos) {pos = 'absolute;'} else
 1485:              {pos = 'relative; margin-right: '+this.Em(-(w+2/jsMath.em))+'; '}
 1486:     return '<IMG SRC="'+jsMath.blank+'" STYLE="position:' + pos
 1487:              + 'vertical-align: '+this.Em(y)+'; left: '+this.Em(x)+'; '
 1488:              + 'width:'+this.Em(w)+'; height: '+this.Em(h)+'; '
 1489:              + 'border-color: '+c+'; border-style: solid; border-width: 1px;">';
 1490:   },
 1491: 
 1492:   /*
 1493:    *  Create a 1-pixel-high horizontal line at a particular
 1494:    *  position, width and color.
 1495:    */
 1496:   Line: function (x,y,w,c,pos) {
 1497:     if (!c) {c = 'black'};
 1498:     if (pos) {pos = 'absolute;'} else
 1499:              {pos = 'relative; margin-right: '+this.Em(-w)+'; '}
 1500:     return '<IMG SRC="'+jsMath.blank+'" STYLE="position:'+pos
 1501:              + 'top: '+this.Em(-y)+'; left:'+this.Em(x)+'; '
 1502:              + 'width:'+this.Em(w)+'; height:1px; background-color: '+c+';">';
 1503:   },
 1504: 
 1505:   /*
 1506:    *  Create a black rule line for fractions, etc.
 1507:    *  Height is converted to pixels (with a minimum of 1), so that
 1508:    *    the line will not disappear at small font sizes.  This means that
 1509:    *    the thickness will not change if you change the font size, or
 1510:    *    may not be correct within a header or other enlarged text.
 1511:    */
 1512:   Rule: function (w,h) {
 1513:     if (h == null) {h = jsMath.TeX.default_rule_thickness}
 1514:     if (w == 0 || h == 0) return;  // should make an invisible box?
 1515:     h = Math.round(h*jsMath.em);
 1516:     if (h < 1) {h = 1}
 1517:     return '<IMG SRC="'+jsMath.black+'" HSPACE="0" VSPACE="0" '
 1518:               + 'STYLE="width:'+this.Em(w)+'; height: '+h+'px">';
 1519:   },
 1520: 
 1521:   /*
 1522:    *  Create a colored block of a specific size (won't always print
 1523:    *  correctly).
 1524:    */
 1525:   Block: function (w,h,c) {
 1526:     if (c == null) {c = 'black'}
 1527:     return '<IMG SRC="'+jsMath.blank+'" HSPACE="0" VSPACE="0" '
 1528:             +      'STYLE="width:'+this.Em(w)+'; height: '+this.Em(h)+'; '
 1529:             +      'background-color: '+c+'">';
 1530:   },
 1531: 
 1532:   /*
 1533:    *  Add a <SPAN> tag to activate a specific CSS class
 1534:    */
 1535:   Class: function (tclass,html) {
 1536:     return '<SPAN CLASS="'+tclass+'">'+html+'</SPAN>';
 1537:   },
 1538:   
 1539:   /*
 1540:    *  Use a <SPAN> to place some HTML at a specific position.
 1541:    *  (This can be replaced by the ones below to overcome
 1542:    *   some browser-specific bugs.)
 1543:    */
 1544:   Place: function (html,x,y) {
 1545:     if (Math.abs(x) < .0001) {x = 0}
 1546:     if (Math.abs(y) < .0001) {y = 0}
 1547:     if (x || y) {
 1548:       var span = '<SPAN STYLE="position: relative;';
 1549:       if (x) {span += ' margin-left:'+this.Em(x)+';'}
 1550:       if (y) {span += ' top:'+this.Em(-y)+';'}
 1551:       html = span + '">' + html + '</SPAN>';
 1552:     }
 1553:     return html;
 1554:   },
 1555:   
 1556:   /*
 1557:    *  For MSIE on Windows, backspacing must be done in a separate
 1558:    *  <SPAN>, otherwise the contents will be clipped.
 1559:    */
 1560:   PlaceSeparateNegative: function (html,x,y) {
 1561:     if (Math.abs(x) < .0001) {x = 0}
 1562:     if (Math.abs(y) < .0001) {y = 0}
 1563:     if (x > 0 || y) {
 1564:       var span = '<SPAN STYLE="position: relative;';
 1565:       if (x > 0) {span += ' margin-left:'+this.Em(x)+';'}
 1566:       if (y) {span += ' top:'+this.Em(-y)+';'}
 1567:       html = span + '">' + html + '</SPAN>';
 1568:     }
 1569:     if (x < 0) {
 1570:       html = jsMath.msieSpaceFix
 1571:                + '<SPAN STYLE="margin-left:'+this.Em(x)+';"></SPAN>' + html;
 1572:     }
 1573:     return html;
 1574:   },
 1575: 
 1576:   /*
 1577:    *  Here the x and y positioning is done in separate <SPAN> tags
 1578:    */
 1579:   PlaceSeparateSkips: function (html,x,y) {
 1580:     if (Math.abs(x) < .0001) {x = 0}
 1581:     if (Math.abs(y) < .0001) {y = 0}
 1582:     if (y) {html = '<SPAN STYLE="position: relative; top:'+this.Em(-y)+';'
 1583:                        + '">' + html + '</SPAN>'}
 1584:     if (x) {html = jsMath.msieSpaceFix 
 1585:                        + '<SPAN STYLE="margin-left:'+this.Em(x)+';"></SPAN>' + html}
 1586:     return html;
 1587:   },
 1588:   
 1589:   /*
 1590:    *  Place a SPAN with absolute coordinates
 1591:    */
 1592:   PlaceAbsolute: function (html,x,y) {
 1593:     if (Math.abs(x) < .0001) {x = 0}
 1594:     if (Math.abs(y) < .0001) {y = 0}
 1595:     html = '<SPAN STYLE="position: absolute; left:'+this.Em(x)+'; '
 1596:               + 'top:'+this.Em(y)+';">' + html + '&nbsp;</SPAN>';
 1597:               //  space normalizes line height
 1598:     return html;
 1599:   },
 1600: 
 1601:   Absolute: function(html,w,h,d,y,H) {
 1602:     var align = "";
 1603:     if (d) {align = ' vertical-align: '+jsMath.HTML.Em(-d)+';'}
 1604:     if (y != "none") {
 1605:       if (Math.abs(y) < .0001) {y = 0}
 1606:       html = '<SPAN STYLE="position: absolute; '
 1607:                + 'top:'+jsMath.HTML.Em(y)+'; left: 0em;">'
 1608:                + html + '&nbsp;' // space normalizes line height in script styles
 1609:              + '</SPAN>';
 1610:     }
 1611:     html += '<IMG SRC="'+jsMath.blank+'" STYLE="width: '+jsMath.HTML.Em(w)+'; '
 1612:                         + 'height: '+jsMath.HTML.Em(h)+';'+align+'">';
 1613:     if (jsMath.msieAbsoluteBug) {// for MSIE (Mac)
 1614:       html = '<SPAN STYLE="position: relative;">' + html + '</SPAN>';
 1615:     }
 1616:     html =   '<SPAN STYLE="position: relative;'
 1617:            +     ' width: '+jsMath.HTML.Em(w)+';'       // for MSIE
 1618:            +     ' height: '+jsMath.HTML.Em(H)+';'  // for MSIE
 1619:            +     '">'
 1620:            +   html
 1621:            + '</SPAN>';
 1622:     return html;
 1623:   }
 1624: 
 1625: };
 1626: 
 1627: 
 1628: /***************************************************************************/
 1629: 
 1630: /*
 1631:  *  jsMath.Box handles TeX's math boxes and jsMath's equivalent of hboxes.
 1632:  */
 1633: 
 1634: jsMath.Box = function (format,text,w,h,d) {
 1635:   if (d == null) {d = jsMath.d}
 1636:   this.type = 'typeset';
 1637:   this.w = w; this.h = h; this.d = d; this.bh = h; this.bd = d;
 1638:   this.x = 0; this.y = 0;
 1639:   this.html = text; this.format = format;
 1640: };
 1641: 
 1642: 
 1643: jsMath.Add(jsMath.Box,{
 1644: 
 1645:   /*
 1646:    *  An empty box
 1647:    */
 1648:   Null: new jsMath.Box('null','',0,0,0),
 1649: 
 1650:   /*
 1651:    *  A box containing only text whose class and style haven't been added
 1652:    *  yet (so that we can combine ones with the same styles).  It gets
 1653:    *  the text dimensions, if needed.  (In general, this has been
 1654:    *  replaced by TeX() below, but is still used in fallback mode.)
 1655:    */
 1656:   Text: function (text,tclass,style,size,a,d) {
 1657:     var html = jsMath.Typeset.AddClass(tclass,text);
 1658:         html = jsMath.Typeset.AddStyle(style,size,html);
 1659:     var BB = jsMath.EmBoxFor(html); var TeX = jsMath.Typeset.TeX(style,size);
 1660:     var bd = ((tclass == 'cmsy10' || tclass == 'cmex10')? BB.h-TeX.h: TeX.d*BB.h/TeX.hd);
 1661:     var box = new jsMath.Box('text',text,BB.w,BB.h-bd,bd);
 1662:     box.style = style; box.size = size; box.tclass = tclass;
 1663:     if (d != null) {if (d != 1) {box.d = d}} else {box.d = 0}
 1664:     if (a == null || a == 1) {box.h = .9*TeX.M_height}
 1665:       else {box.h = 1.1*TeX.x_height + 1*a}; // sometimes a is a string?
 1666:     return box;
 1667:   },
 1668: 
 1669:   /*
 1670:    *  Produce a box containing a given TeX character from a given font.
 1671:    *  The box is a text box (like the ones above), so that characters from
 1672:    *  the same font can be combined.
 1673:    */
 1674:   TeX: function (c,font,style,size) {
 1675:     c = jsMath.TeX[font][c];
 1676:     if (c.d == null) {c.d = 0}; if (c.h == null) {c.h = 0}
 1677:     var scale = jsMath.Typeset.TeX(style,size).scale;
 1678:     var h = c.h + jsMath.TeX[font].dh
 1679:     var box = new jsMath.Box('text',c.c,c.w*scale,h*scale,c.d*scale);
 1680:     box.style = style; box.size = size;
 1681:     if (c.tclass) {
 1682:       box.tclass = c.tclass;
 1683:       box.bh = scale*jsMath.h;
 1684:       box.bd = scale*jsMath.d;
 1685:     } else {
 1686:       box.tclass = font;
 1687:       box.bh = scale*jsMath.TeX[font].h;
 1688:       box.bd = scale*jsMath.TeX[font].d;
 1689:       if (jsMath.msieFontBug) {
 1690:         // hack to avoid Font changing back to the default
 1691:         // font when a unicode reference is not followed
 1692:         // by a letter or number
 1693:         box.html += '<SPAN STYLE="display: none">x</SPAN>'
 1694:       }
 1695:     }
 1696:     return box;
 1697:   },
 1698: 
 1699:   /*
 1700:    *  A box containing a spacer of a specific width
 1701:    */
 1702:   Space: function (w) {
 1703:     return new jsMath.Box('html',jsMath.HTML.Spacer(w),w,0,0);
 1704:   },
 1705: 
 1706:   /*
 1707:    *  A box containing a horizontal rule
 1708:    */
 1709:   Rule: function (w,h) {
 1710:     if (h == null) {h = jsMath.TeX.default_rule_thickness}
 1711:     html = jsMath.HTML.Rule(w,h);
 1712:     return new jsMath.Box('html',html,w,h,0);
 1713:   },
 1714: 
 1715:   /*
 1716:    *  A box containing a colored block
 1717:    */
 1718:   Block: function (w,h,c) {
 1719:     return new jsMath.Box('html',jsMath.HTML.Block(w,h,c),w,h,0);
 1720:   },
 1721:   
 1722:   /*
 1723:    *  Get a character from a TeX font, and make sure that it has
 1724:    *  its metrics specified.
 1725:    */
 1726:   GetChar: function (code,font) {
 1727:     var c = jsMath.TeX[font][code];
 1728:     if (c.tclass == null) {c.tclass = font}
 1729:     if (!c.computedW) {
 1730:       c.w = jsMath.EmBoxFor(jsMath.Typeset.AddClass(c.tclass,c.c)).w;
 1731:       if (c.h == null) {c.h = jsMath.defaultH}; if (c.d == null) {c.d = 0}
 1732:       c.computedW = 1;
 1733:     }
 1734:     return c;
 1735:   },
 1736:   
 1737:   /*
 1738:    *  Locate the TeX delimiter character that matches a given height.
 1739:    *  Return the character, font, style and actual height used.
 1740:    */
 1741:   DelimBestFit: function (H,c,font,style) {
 1742:     if (c == 0 && font == 0) return;
 1743:     var C; var h; font = jsMath.TeX.fam[font];
 1744:     var isSS = (style.charAt(1) == 'S');
 1745:     var isS  = (style.charAt(0) == 'S');
 1746:     while (c != null) {
 1747:       C = jsMath.TeX[font][c];
 1748:       if (C.h == null) {C.h = jsMath.defaultH}; if (C.d == null) {C.d = 0}
 1749:       h = C.h+C.d;
 1750:       if (C.delim) {return [c,font,'',H]}
 1751:       if (isSS && .5*h >= H) {return [c,font,'SS',.5*h]}
 1752:       if (isS  && .7*h >= H) {return [c,font,'S',.7*h]}
 1753:       if (h >= H || C.n == null) {return [c,font,'T',h]}
 1754:       c = C.n
 1755:     }
 1756:   },
 1757:   
 1758:   /*
 1759:    *  Create the HTML needed for a stretchable delimiter of a given height,
 1760:    *  either centered or not.  This version uses relative placement (i.e.,
 1761:    *  backspaces, not line-breaks).  This works with more browsers, but
 1762:    *  if the font size changes, the backspacing may not be right, so the
 1763:    *  delimiters may become jagged.
 1764:    */
 1765:   DelimExtendRelative: function (H,c,font,a,nocenter) {
 1766:     var C = jsMath.TeX[font][c];
 1767:     var top = this.GetChar(C.delim.top? C.delim.top: C.delim.rep,font);
 1768:     var rep = this.GetChar(C.delim.rep,font);
 1769:     var bot = this.GetChar(C.delim.bot? C.delim.bot: C.delim.rep,font);
 1770:     var ext = jsMath.Typeset.AddClass(rep.tclass,rep.c);
 1771:     var w = rep.w; var h = rep.h+rep.d
 1772:     var y; var dx;
 1773:     if (C.delim.mid) {// braces
 1774:       var mid = this.GetChar(C.delim.mid,font);
 1775:       var n = Math.ceil((H-(top.h+top.d)-(mid.h+mid.d)-(bot.h+bot.d))/(2*(rep.h+rep.d)));
 1776:       H = 2*n*(rep.h+rep.d) + (top.h+top.d) + (mid.h+mid.d) + (bot.h+bot.d);
 1777:       if (nocenter) {y = 0} else {y = H/2+a}; var Y = y;
 1778:       var html = jsMath.HTML.Place(jsMath.Typeset.AddClass(top.tclass,top.c),0,y-top.h)
 1779:                + jsMath.HTML.Place(jsMath.Typeset.AddClass(bot.tclass,bot.c),-(top.w+bot.w)/2,y-(H-bot.d))
 1780:                + jsMath.HTML.Place(jsMath.Typeset.AddClass(mid.tclass,mid.c),-(bot.w+mid.w)/2,y-(H+mid.h-mid.d)/2);
 1781:       dx = (w-mid.w)/2; if (Math.abs(dx) < .0001) {dx = 0}
 1782:       if (dx) {html += jsMath.HTML.Spacer(dx)}
 1783:       y -= top.h+top.d + rep.h;
 1784:       for (var i = 0; i < n; i++) {html += jsMath.HTML.Place(ext,-w,y-i*h)}
 1785:       y -= H/2 - rep.h/2;
 1786:       for (var i = 0; i < n; i++) {html += jsMath.HTML.Place(ext,-w,y-i*h)}
 1787:     } else {// everything else
 1788:       var n = Math.ceil((H - (top.h+top.d) - (bot.h+bot.d))/(rep.h+rep.d));
 1789:       // make sure two-headed arrows have an extender
 1790:       if (top.h+top.d < .9*(rep.h+rep.d)) {n = Math.max(1,n)}
 1791:       H = n*(rep.h+rep.d) + (top.h+top.d) + (bot.h+bot.d);
 1792:       if (nocenter) {y = 0} else {y = H/2+a}; var Y = y;
 1793:       var html = jsMath.HTML.Place(jsMath.Typeset.AddClass(top.tclass,top.c),0,y-top.h)
 1794:       dx = (w-top.w)/2; if (Math.abs(dx) < .0001) {dx = 0}
 1795:       if (dx) {html += jsMath.HTML.Spacer(dx)}
 1796:       y -= top.h+top.d + rep.h;
 1797:       for (var i = 0; i < n; i++) {html += jsMath.HTML.Place(ext,-w,y-i*h)}
 1798:       html += jsMath.HTML.Place(jsMath.Typeset.AddClass(bot.tclass,bot.c),-(w+bot.w)/2,Y-(H-bot.d));
 1799:     }
 1800:     if (nocenter) {h = top.h} else {h = H/2+a}
 1801:     var box = new jsMath.Box('html',html,rep.w,h,H-h);
 1802:     box.bh = jsMath.TeX[font].h; box.bd = jsMath.TeX[font].d;
 1803:     return box;
 1804:   },
 1805: 
 1806:   /*
 1807:    *  Create the HTML needed for a stretchable delimiter of a given height,
 1808:    *  either centered or not.  This version uses absolute placement (i.e.,
 1809:    *  line-breaks, not backspacing).  This gives more reliable results,
 1810:    *  but doesn't work with all browsers.
 1811:    */
 1812:   DelimExtendAbsolute: function (H,c,font,a,nocenter) {
 1813:     var Font = jsMath.TeX[font];
 1814:     var C = Font[c];
 1815:     var top = this.GetChar(C.delim.top? C.delim.top: C.delim.rep,font);
 1816:     var rep = this.GetChar(C.delim.rep,font);
 1817:     var bot = this.GetChar(C.delim.bot? C.delim.bot: C.delim.rep,font);
 1818:     
 1819:     if (C.delim.mid) {// braces
 1820:       var mid = this.GetChar(C.delim.mid,font);
 1821:       var n = Math.ceil((H-(top.h+top.d)-(mid.h+mid.d-.05)-(bot.h+bot.d-.05))/(2*(rep.h+rep.d-.05)));
 1822:       H = 2*n*(rep.h+rep.d-.05) + (top.h+top.d) + (mid.h+mid.d-.05) + (bot.h+bot.d-.05);
 1823:       
 1824:       html = jsMath.HTML.PlaceAbsolute(jsMath.Typeset.AddClass(top.tclass,top.c),0,0);
 1825:       var h = rep.h+rep.d - .05; var y = top.d-.05 + rep.h;
 1826:       var ext = jsMath.Typeset.AddClass(font,rep.c)
 1827:       for (var i = 0; i < n; i++) {html += jsMath.HTML.PlaceAbsolute(ext,0,y+i*h)}
 1828:       html += jsMath.HTML.PlaceAbsolute(jsMath.Typeset.AddClass(mid.tclass,mid.c),0,y+n*h-rep.h+mid.h);
 1829:       y += n*h + mid.h+mid.d - .05;
 1830:       for (var i = 0; i < n; i++) {html += jsMath.HTML.PlaceAbsolute(ext,0,y+i*h)}
 1831:       html += jsMath.HTML.PlaceAbsolute(jsMath.Typeset.AddClass(bot.tclass,bot.c),0,y+n*h-rep.h+bot.h);
 1832:     } else {// all others
 1833:       var n = Math.ceil((H - (top.h+top.d) - (bot.h+bot.d-.05))/(rep.h+rep.d-.05));
 1834:       H = n*(rep.h+rep.d-.05) + (top.h+top.d) + (bot.h+bot.d-.05);
 1835: 
 1836:       html = jsMath.HTML.PlaceAbsolute(jsMath.Typeset.AddClass(top.tclass,top.c),0,0);
 1837:       var h = rep.h+rep.d-.05; var y = top.d-.05 + rep.h;
 1838:       var ext = jsMath.Typeset.AddClass(rep.tclass,rep.c);
 1839:       for (var i = 0; i < n; i++) {html += jsMath.HTML.PlaceAbsolute(ext,0,y+i*h)}
 1840:       html += jsMath.HTML.PlaceAbsolute(jsMath.Typeset.AddClass(bot.tclass,bot.c),0,y+n*h-rep.h+bot.h);
 1841:     }
 1842:     
 1843:     var w = top.w;
 1844:     if (nocenter) {h = top.h; y = 0} else {h = H/2 + a; y = h - top.h}
 1845:     html = jsMath.HTML.Absolute(html,w,Font.h,"none",-y,top.h);
 1846:     var box = new jsMath.Box('html',html,rep.w,h,H-h);
 1847:     box.bh = jsMath.TeX[font].h; box.bd = jsMath.TeX[font].d;
 1848:     return box;
 1849:   },
 1850:   
 1851:   /*
 1852:    *  Get the HTML for a given delimiter of a given height.
 1853:    *  It will return either a single character, if one exists, or the
 1854:    *  more complex HTML needed for a stretchable delimiter.
 1855:    */
 1856:   Delimiter: function (H,delim,style,nocenter) {
 1857:     var size = 4;  //### pass this?
 1858:     var TeX = jsMath.Typeset.TeX(style,size);
 1859:     var CFSH = this.DelimBestFit(H,(delim&0xFF000)>>12,(delim&0xF00000)>>20,style);
 1860:     if (CFSH == null || CFSH[3] < H) 
 1861:       {CFSH = this.DelimBestFit(H,(delim&0xFF),(delim&0xF00)>>8,style)}
 1862:     if (CFSH == null) {return this.Space(TeX.nulldelimiterspace)}
 1863:     if (CFSH[2] == '')
 1864:       {return this.DelimExtend(H,CFSH[0],CFSH[1],TeX.axis_height,nocenter)}
 1865:     box = jsMath.Box.TeX(CFSH[0],CFSH[1],CFSH[2],size).Styled();
 1866:     if (nocenter) {box.y = -jsMath.TeX[CFSH[1]].dh*TeX.scale}
 1867:       else {box.y = -((box.h+box.d)/2 - box.d - TeX.axis_height)}
 1868:     if (Math.abs(box.y) < .0001) {box.y = 0}
 1869:     if (box.y) {box = jsMath.Box.SetList([box],CFSH[2],size)}
 1870:     return box;
 1871:   },
 1872:   
 1873:   /*
 1874:    *  Get a character by its TeX charcode, and make sure its width
 1875:    *  is specified.
 1876:    */
 1877:   GetCharCode: function (code) {
 1878:     var font = jsMath.TeX.fam[(code&0xF00)>>8];
 1879:     var Font = jsMath.TeX[font];
 1880:     var c = Font[code & 0xFF];
 1881:     if (c.w == null) {c.w = jsMath.EmBoxFor(jsMath.Typeset.AddClass(c.tclass,c.c)).w}
 1882:     if (c.font == null) {c.font = font}
 1883:     return c;
 1884:   },
 1885: 
 1886:   /*
 1887:    * Add the class to the html, and use the font if there isn't one
 1888:    * specified already
 1889:    */
 1890: 
 1891:   AddClass: function (tclass,html,font) {
 1892:     if (tclass == null) {tclass = font}
 1893:     return jsMath.Typeset.AddClass(tclass,html);
 1894:   },
 1895:   
 1896:   /*
 1897:    *  Create a horizontally stretchable "delimiter" (like over- and
 1898:    *  underbraces).
 1899:    */
 1900: //###  Add size?
 1901:   Leaders: function (W,leader) {
 1902:     var h; var d; var w; var html; var font;
 1903:     if (leader.lmid) {// braces
 1904:       font = jsMath.TeX.fam[(leader.left & 0xF00) >> 8];
 1905:       var left = this.GetCharCode(leader.left);
 1906:       var right = this.GetCharCode(leader.right);
 1907:       var lmid = this.GetCharCode(leader.lmid);
 1908:       var rmid = this.GetCharCode(leader.rmid);
 1909:       w = (W - left.w - right.w - lmid.w - rmid.w)/2 - .1; h = .4; d = .3;
 1910:       if (w < 0) {w = 0}
 1911:       html = this.AddClass(left.tclass,left.c,left.font) 
 1912:            + jsMath.HTML.Rule(w,left.h)
 1913:            + this.AddClass(lmid.tclass,lmid.c+rmid.c,lmid.font)
 1914:            + jsMath.HTML.Rule(w,right.h)
 1915:            + this.AddClass(right.tclass,right.c,right.font);
 1916:     } else { //arrows
 1917:       font = jsMath.TeX.fam[(leader.rep &0xF00) >> 8];
 1918:       var left = this.GetCharCode(leader.left? leader.left: leader.rep);
 1919:       var rep = this.GetCharCode(leader.rep);
 1920:       var right = this.GetCharCode(leader.right? leader.right: leader.rep);
 1921:       var n = Math.ceil((W - left.w - right.w + .4)/(rep.w - .3));
 1922:       w = (W - left.w - right.w + .4 - n*(rep.w - .3));
 1923:       if (leader.left) {h = left.h; d = left.d} else {h = right.h; d = right.d}
 1924:       if (d == null) {d = 0}; if (h == null) {h = 0}
 1925:       var html = this.AddClass(left.tclass,left.c,left.font); var m = Math.floor(n/2);
 1926:       var ext = jsMath.HTML.Place(rep.c,-.3,0);
 1927:       var ehtml = ''; for (var i = 0; i < m; i++) {ehtml += ext};
 1928:       html += this.AddClass(rep.tclass,ehtml,rep.font) + jsMath.HTML.Spacer(w);
 1929:       ehtml = ''; for (var i = m; i < n; i++) {ehtml += ext};
 1930:       html += this.AddClass(rep.tclass,ehtml,rep.font);
 1931:       if (jsMath.msieFontBug) {html += '<SPAN STYLE="display: none">x</SPAN>'}
 1932:       html += jsMath.HTML.Place(this.AddClass(right.tclass,right.c,right.font),-.4,0);
 1933:     }
 1934:     w = jsMath.EmBoxFor(html).w;
 1935:     if (w != W) {
 1936:       w = jsMath.HTML.Spacer((W-w)/2);
 1937:       html = w + html + w;
 1938:     }
 1939:     var box = new jsMath.Box('html',html,W,h,d);
 1940:     box.bh = jsMath.TeX[font].h; box.bd = jsMath.TeX[font].d;
 1941:     return box;
 1942:   },
 1943:   
 1944:   /*
 1945:    *  Create the HTML for an alignment (e.g., array or matrix)
 1946:    *  Since the widths are not really accurate (they are based on pixel
 1947:    *  widths not the sub-pixel widths of the actual characters), there
 1948:    *  is some drift involved.  We lay out the table column by column
 1949:    *  to help reduce the problem.
 1950:    *  
 1951:    *  ###  still need to allow users to specify row and column attributes,
 1952:    *       and do things like \span and \multispan  ###
 1953:    */
 1954:   LayoutRelative: function (size,table,align,cspacing) {
 1955:     if (align == null) {align = []}
 1956:     if (cspacing == null) {cspacing = []}
 1957:     
 1958:     // get row and column maximum dimensions
 1959:     var scale = jsMath.sizes[size]/100;
 1960:     var W = []; var H = []; var D = [];
 1961:     var unset = -1000; var bh = unset; var bd = unset;
 1962:     var i; var j; var row;
 1963:     for (i = 0; i < table.length; i++) {
 1964:       row = table[i]; H[i] = jsMath.h*scale; D[i] = jsMath.d*scale;
 1965:       for (j = 0; j < row.length; j++) {
 1966:         row[j] = row[j].Remeasured();
 1967:         if (row[j].h > H[i]) {H[i] = row[j].h}
 1968:         if (row[j].d > D[i]) {D[i] = row[j].d}
 1969:         if (j >= W.length) {W[j] = row[j].w}
 1970:         else if (row[j].w > W[j]) {W[j] = row[j].w}
 1971:         if (row[j].bh > bh) {bh = row[j].bh}
 1972:         if (row[j].bd > bd) {bd = row[j].bd}
 1973:       }
 1974:     }
 1975:     if (bh == unset) {bh = 0}; if (bd == unset) {bd = 0}
 1976: 
 1977:     // lay out the columns
 1978:     var HD = (jsMath.hd-.01)*scale;
 1979:     var html = ''; var pW = 0; var cW = 0;
 1980:     var w; var h; var y;
 1981:     var box; var mlist; var entry;
 1982:     for (j = 0; j < W.length; j++) {
 1983:       mlist = []; y = -H[0]; pW = 0;
 1984:       for (i = 0; i < table.length; i++) {
 1985:         entry = table[i][j];
 1986:         if (entry && entry.format != 'null') {
 1987:           if (align[j] == 'l') {w = 0} else
 1988:           if (align[j] == 'r') {w = W[j] - entry.w} else
 1989:             {w = (W[j] - entry.w)/2}
 1990:           entry.x = w - pW; pW = entry.w + w; entry.y = y;
 1991:           mlist[mlist.length] = entry;
 1992:         }
 1993:         if (i == table.length-1) {y -= D[i]}
 1994:         else {y -= Math.max(HD,D[i]+H[i+1]) + scale/10}
 1995:       }
 1996:       if (cspacing[j] == null) cspacing[j] = scale;
 1997:       if (mlist.length > 0) {
 1998:         box = jsMath.Box.SetList(mlist,'T',size);
 1999:         html += jsMath.HTML.Place(box.html,cW,0);
 2000:         cW = W[j] - box.w + cspacing[j];
 2001:       } else {cW += cspacing[j]}
 2002:     }
 2003:     
 2004:     // get the full width and height
 2005:     w = -cspacing[W.length-1]; y = (H.length-1)*scale/10;
 2006:     for (i = 0; i < W.length; i++) {w += W[i] + cspacing[i]}
 2007:     for (i = 0; i < H.length; i++) {y += Math.max(HD,H[i]+D[i])}
 2008:     h = y/2 + jsMath.TeX.axis_height; var d = y-h;
 2009:     
 2010:     // adjust the final row width, and vcenter the table
 2011:     //   (add 1/6em at each side for the \,)
 2012:     html += jsMath.HTML.Spacer(cW-cspacing[W.length-1] + scale/6);
 2013:     html = jsMath.HTML.Place(html,scale/6,h);
 2014:     box = new jsMath.Box('html',html,w+scale/3,h,d);
 2015:     box.bh = bh; box.bd = bd;
 2016:     return box;
 2017:   },
 2018: 
 2019:   /*
 2020:    *  Create the HTML for an alignment (e.g., array or matrix)
 2021:    *  Use absolute position for elements in the array.
 2022:    *  
 2023:    *  ###  still need to allow users to specify row and column attributes,
 2024:    *       and do things like \span and \multispan  ###
 2025:    */
 2026:   LayoutAbsolute: function (size,table,align,cspacing) {
 2027:     if (align == null) {align = []}
 2028:     if (cspacing == null) {cspacing = []}
 2029:     
 2030:     // get row and column maximum dimensions
 2031:     var scale = jsMath.sizes[size]/100;
 2032:     var HD = (jsMath.hd-.01)*scale;
 2033:     var W = []; var H = []; var D = [];
 2034:     var w = 0; var h; var x; var y;
 2035:     var i; var j; var row;
 2036:     for (i = 0; i < table.length; i++) {
 2037:       row = table[i];
 2038:       H[i] = jsMath.h*scale; D[i] = jsMath.d*scale;
 2039:       for (j = 0; j < row.length; j++) {
 2040:         row[j] = row[j].Remeasured();
 2041:         if (row[j].h > H[i]) {H[i] = row[j].h}
 2042:         if (row[j].d > D[i]) {D[i] = row[j].d}
 2043:         if (j >= W.length) {W[j] = row[j].w}
 2044:         else if (row[j].w > W[j]) {W[j] = row[j].w}
 2045:       }
 2046:     }
 2047: 
 2048:     // get the height and depth of the centered table
 2049:     y = (H.length-1)*scale/6;
 2050:     for (i = 0; i < H.length; i++) {y += Math.max(HD,H[i]+D[i])}
 2051:     h = y/2 + jsMath.TeX.axis_height; var d = y - h;
 2052: 
 2053:     // lay out the columns
 2054:     var html = ''; var entry; w = scale/6;
 2055:     for (j = 0; j < W.length; j++) {
 2056:       y = H[0]-h;
 2057:       for (i = 0; i < table.length; i++) {
 2058:         entry = table[i][j];
 2059:         if (entry && entry.format != 'null') {
 2060:           if (align[j] == 'l') {x = 0} else
 2061:           if (align[j] == 'r') {x = W[j] - entry.w} else
 2062:             {x = (W[j] - entry.w)/2}
 2063:           html += jsMath.HTML.PlaceAbsolute(entry.html,w+x,
 2064:                     y-Math.max(0,entry.bh-jsMath.h*scale));
 2065:         }
 2066:         if (i == table.length-1) {y += D[i]}
 2067:         else {y += Math.max(HD,D[i]+H[i+1]) + scale/6}
 2068:       }
 2069:       if (cspacing[j] == null) cspacing[j] = scale;
 2070:       w += W[j] + cspacing[j];
 2071:     }
 2072:     
 2073:     // get the full width
 2074:     w = -cspacing[W.length-1]+scale/3;
 2075:     for (i = 0; i < W.length; i++) {w += W[i] + cspacing[i]}
 2076: 
 2077:     html = jsMath.HTML.Spacer(scale/6)+html+jsMath.HTML.Spacer(scale/6);
 2078:     if (jsMath.spanHeightVaries) {y = h-jsMath.h} else {y = 0}
 2079:     html = jsMath.HTML.Absolute(html,w,h+d,d,y,H[0]);
 2080:     var box = new jsMath.Box('html',html,w+scale/3,h,d);
 2081:     return box;
 2082:   },
 2083: 
 2084:   /*
 2085:    *  Look for math within \hbox and other non-math text
 2086:    */
 2087:   InternalMath: function (text,size) {
 2088:     if (!text.match(/\$|\\\(/)) {return this.Text(text,'nonmath','T',size).Styled()}
 2089:     
 2090:     var i = 0; var k = 0; var c; var match = '';
 2091:     var mlist = []; var parse; var html; var box;
 2092:     while (i < text.length) {
 2093:       c = text.charAt(i++);
 2094:       if (c == '$') {
 2095:         if (match == '$') {
 2096:           parse = jsMath.Parse(text.slice(k,i-1),null,size);
 2097:           if (parse.error) {
 2098:             mlist[mlist.length] = this.Text(parse.error,'error','T',size,1,1);
 2099:           } else {
 2100:             parse.Atomize();
 2101:             mlist[mlist.length] = parse.mlist.Typeset('T',size).Styled();
 2102:           }
 2103:           match = ''; k = i;
 2104:         } else {
 2105:           mlist[mlist.length] = this.Text(text.slice(k,i-1),'nonmath','T',size,1,1);
 2106:           match = '$'; k = i;
 2107:         }
 2108:       } else if (c == '\\') {
 2109:         c = text.charAt(i++);
 2110:         if (c == '(' && match == '') {
 2111:           mlist[mlist.length] = this.Text(text.slice(k,i-2),'nonmath','T',size,1,1);
 2112:           match = ')'; k = i;
 2113:         } else if (c == ')' && match == ')') {
 2114:           parse = jsMath.Parse(text.slice(k,i-2),null,size);
 2115:           if (parse.error) {
 2116:             mlist[mlist.length] = this.Text(parse.error,'error','T',size,1,1);
 2117:           } else {
 2118:             parse.Atomize();
 2119:             mlist[mlist.length] = parse.mlist.Typeset('T',size).Styled();
 2120:           }
 2121:           match = ''; k = i;
 2122:         }
 2123:       }
 2124:     }
 2125:     mlist[mlist.length] = this.Text(text.slice(k),'nonmath','T',size,1,1);
 2126:     return this.SetList(mlist,'T',size);
 2127:   },
 2128:   
 2129:   /*
 2130:    *  Convert an abitrary box to a typeset box.  I.e., make an
 2131:    *  HTML version of the contents of the box, at its desired (x,y)
 2132:    *  position.
 2133:    */
 2134:   Set: function (box,style,size,addstyle) {
 2135:     if (box) {
 2136:       if (box.type == 'typeset') {return box}
 2137:       if (box.type == 'mlist') {
 2138:         box.mlist.Atomize(style,size);
 2139:         return box.mlist.Typeset(style,size);
 2140:       }
 2141:       if (box.type == 'text') {
 2142:         box = this.Text(box.text,box.tclass,style,size,box.ascend,box.descend);
 2143:         if (addstyle != 0) {box.Styled()}
 2144:         return box;
 2145:       }
 2146:       box = this.TeX(box.c,box.font,style,size);
 2147:       if (addstyle != 0) {box.Styled()}
 2148:       return box;
 2149:     }
 2150:     return jsMath.Box.Null;
 2151:   },
 2152: 
 2153:   /*
 2154:    *  Convert a list of boxes to a single typeset box.  I.e., finalize
 2155:    *  the HTML for the list of boxes, properly spaced and positioned.
 2156:    */
 2157:   SetList: function (boxes,style,size) {
 2158:     var mlist = []; var box;
 2159:     for (var i = 0; i < boxes.length; i++) {
 2160:       box = boxes[i];
 2161:       if (box.type == 'typeset') {box = jsMath.mItem.Typeset(box)}
 2162:       mlist[mlist.length] = box;
 2163:     }
 2164:     var typeset = new jsMath.Typeset(mlist);
 2165:     return typeset.Typeset(style,size);
 2166:   }
 2167: 
 2168: });
 2169: 
 2170: 
 2171: jsMath.Package(jsMath.Box,{
 2172: 
 2173:   /*
 2174:    *  Add the class and style to a text box (i.e., finalize the
 2175:    *  unpositioned HTML for the box).
 2176:    */
 2177:   Styled: function () {
 2178:     if (this.format == 'text') {
 2179:       this.html = jsMath.Typeset.AddClass(this.tclass,this.html);
 2180:       this.html = jsMath.Typeset.AddStyle(this.style,this.size,this.html);
 2181:       delete this.tclass; delete this.style;
 2182:       this.format = 'html';
 2183:     }
 2184:     return this;
 2185:   },
 2186:   
 2187:   /*
 2188:    *  Recompute the box width to make it more accurate.
 2189:    */
 2190:   Remeasured: function () {
 2191:     if (this.w > 0) {
 2192:       if (!jsMath.spanHeightVaries || !this.html.match(/position: ?absolute/))
 2193:         {this.w = jsMath.EmBoxFor(this.html).w}
 2194:     }
 2195:     return this;
 2196:   }
 2197: 
 2198: });
 2199: 
 2200: 
 2201: /***************************************************************************/
 2202: 
 2203: /*
 2204:  *  mItems are the buiulding blocks of mLists (math lists) used to
 2205:  *  store the information about a mathematical expression.  These are
 2206:  *  basically the items listed in the TeXbook in Appendix G (plus some
 2207:  *  minor extensions).
 2208:  */
 2209: jsMath.mItem = function (type,def) {
 2210:   this.type = type;
 2211:   jsMath.Add(this,def);
 2212: }
 2213: 
 2214: jsMath.Add(jsMath.mItem,{
 2215: 
 2216:   /*
 2217:    *  a general atom (given a nucleus for the atom)
 2218:    */
 2219:   Atom: function (type,nucleus) {
 2220:     return new jsMath.mItem(type,{atom: 1, nuc: nucleus});
 2221:   },
 2222: 
 2223:   /*
 2224:    *  An atom whose nucleus is a piece of text, in a given
 2225:    *  class, with a given additional height and depth
 2226:    */
 2227:   TextAtom: function (type,text,tclass,a,d) {
 2228:     var atom = new jsMath.mItem(type,{
 2229:       atom: 1,
 2230:       nuc: {
 2231:         type: 'text',
 2232:         text: text,
 2233:         tclass: tclass
 2234:       }
 2235:     });
 2236:     if (a != null) {atom.nuc.ascend = a}
 2237:     if (d != null) {atom.nuc.descend = d}
 2238:     return atom;
 2239:   },
 2240:   
 2241:   /*
 2242:    *  An atom whose nucleus is a TeX character in a specific font
 2243:    */
 2244:   TeXAtom: function (type,c,font) {
 2245:     return new jsMath.mItem(type,{
 2246:       atom: 1,
 2247:       nuc: {
 2248:         type: 'TeX',
 2249:         c: c,
 2250:         font: font
 2251:       }
 2252:     });
 2253:   },
 2254: 
 2255:   /*
 2256:    *  A generalized fraction atom, with given delimiters, rule
 2257:    *  thickness, and a numerator and denominator.
 2258:    */
 2259:   Fraction: function (name,num,den,thickness,left,right) {
 2260:     return new jsMath.mItem('fraction',{
 2261:       from: name, num: num, den: den,
 2262:       thickness: thickness, left: left, right: right
 2263:     });
 2264:   },
 2265: 
 2266:   /*
 2267:    *  An atom that inserts some glue
 2268:    */
 2269:   Space: function (w) {return new jsMath.mItem('space',{w: w})},
 2270: 
 2271:   /*
 2272:    *  An atom that contains a typeset box (like an hbox or vbox)
 2273:    */
 2274:   Typeset: function (box) {return new jsMath.mItem('box',{nuc: box})},
 2275:   
 2276:   /*
 2277:    *  An atom that contains some finished HTML (acts like a typeset box)
 2278:    */
 2279:   HTML: function (html) {return new jsMath.mItem('html',{html: html})}
 2280: 
 2281: });
 2282: 
 2283: /***************************************************************************/
 2284: 
 2285: /*
 2286:  *  mLists are lists of mItems, and encode the contents of
 2287:  *  mathematical expressions and sub-expressions.  They act as
 2288:  *  the expression "stack" as the mathematics is parsed, and
 2289:  *  contain some state information, like the position of the
 2290:  *  most recent open paren and \over command, and the current font.
 2291:  */
 2292: jsMath.mList = function (list,font,size,style) {
 2293:   if (list) {this.mlist = list} else {this.mlist = []}
 2294:   if (style == null) {style = 'T'}; if (size == null) {size = 4}
 2295:   this.data = {openI: null, overI: null, overF: null,
 2296:                font: font, size: size, style: style};
 2297:   this.init = {size: size, style: style};
 2298: }
 2299: 
 2300: jsMath.Package(jsMath.mList,{
 2301: 
 2302:   /*
 2303:    *  Add an mItem to the list
 2304:    */
 2305:   Add: function (box) {return (this.mlist[this.mlist.length] = box)},
 2306:   
 2307:   /*
 2308:    *  Get the i-th mItem from the list
 2309:    */
 2310:   Get: function (i) {return this.mlist[i]},
 2311:   
 2312:   /*
 2313:    *  Get the length of the list
 2314:    */
 2315:   Length: function() {return this.mlist.length},
 2316: 
 2317:   /*
 2318:    *  Get the tail mItem of the list
 2319:    */
 2320:   Last: function () {
 2321:     if (this.mlist.length == 0) {return null}
 2322:     return this.mlist[this.mlist.length-1]
 2323:   },
 2324: 
 2325:   /*
 2326:    *  Get a sublist of an mList
 2327:    */
 2328:   Range: function (i,j) {
 2329:     if (j == null) {j = this.mlist.length}
 2330:     return new jsMath.mList(this.mlist.slice(i,j+1));
 2331:   },
 2332: 
 2333:   /*
 2334:    *  Remove a range of mItems from the list.
 2335:    */
 2336:   Delete: function (i,j) {
 2337:     if (j == null) {j = i}
 2338:     if (this.mlist.splice) {this.mlist.splice(i,j-i+1)} else {
 2339:       var mlist = [];
 2340:       for (var k = 0; k < this.mlist.length; k++)
 2341:         {if (k < i || k > j) {mlist[mlist.length] = this.mlist[k]}}
 2342:       this.mlist = mlist;
 2343:     }
 2344:   },
 2345: 
 2346:   /*
 2347:    *  Add an open brace and maintain the stack information
 2348:    *  about the previous open brace so we can recover it
 2349:    *  when this one os closed.
 2350:    */
 2351:   Open: function (left) {
 2352:     var box = this.Add(new jsMath.mItem('boundary',{data: this.data}));
 2353:     var olddata = this.data;
 2354:     this.data = {}; for (var i in olddata) {this.data[i] = olddata[i]}
 2355:     delete this.data.overI; delete this.data.overF;
 2356:     this.data.openI = this.mlist.length-1;
 2357:     if (left != null) {box.left = left}
 2358:     return box;
 2359:   },
 2360: 
 2361:   /*
 2362:    *  Attempt to close a brace.  Recover the stack information
 2363:    *  about previous open braces and \over commands.  If there was an
 2364:    *  \over (or \above, etc) in this set of braces, create a fraction
 2365:    *  atom from the two halves, otherwise create an inner or ord
 2366:    *  from the contents of the braces.
 2367:    *  Remove the braced material from the list and add the newly
 2368:    *  created atom (the fraction, inner or ord).
 2369:    */
 2370:   Close: function (right) {
 2371:     if (right != null) {right = new jsMath.mItem('boundary',{right: right})}
 2372:     var atom; var open = this.data.openI;
 2373:     var over = this.data.overI; var from = this.data.overF;
 2374:     this.data  = this.mlist[open].data;
 2375:     if (over) {
 2376:       atom = jsMath.mItem.Fraction(from.name,
 2377:         {type: 'mlist', mlist: this.Range(open+1,over-1)},
 2378:         {type: 'mlist', mlist: this.Range(over)},
 2379:         from.thickness,from.left,from.right);
 2380:       if (right) {
 2381:         var mlist = new jsMath.mList([this.mlist[open],atom,right]);
 2382:         atom = jsMath.mItem.Atom('inner',{type: 'mlist', mlist: mlist});
 2383:       }
 2384:     } else {
 2385:       var openI = open+1; if (right) {this.Add(right); openI--}
 2386:       atom = jsMath.mItem.Atom((right)?'inner':'ord',
 2387:                   {type: 'mlist', mlist: this.Range(openI)});
 2388:     }
 2389:     this.Delete(open,this.Length());
 2390:     return this.Add(atom);
 2391:   },
 2392: 
 2393:   /*
 2394:    *  Create a generalized fraction from an mlist that
 2395:    *  contains an \over (or \above, etc).
 2396:    */
 2397:   Over: function () {
 2398:     var over = this.data.overI; var from = this.data.overF
 2399:     var atom = jsMath.mItem.Fraction(from.name,
 2400:       {type: 'mlist', mlist: this.Range(open+1,over-1)},
 2401:       {type: 'mlist', mlist: this.Range(over)},
 2402:       from.thickness,from.left,from.right);
 2403:     this.mlist = [atom];
 2404:   },
 2405: 
 2406:   /*
 2407:    *  Take a raw mList (that has been produced by parsing some TeX
 2408:    *  expression), and perform the modifications outlined in
 2409:    *  Appendix G of the TeXbook.  
 2410:    */
 2411:   Atomize: function (style,size) {
 2412:     var mitem; var prev = '';
 2413:     this.style = style; this.size = size;
 2414:     for (var i = 0; i < this.mlist.length; i++) {
 2415:       mitem = this.mlist[i]; mitem.delta = 0;
 2416:       if (mitem.type == 'choice') 
 2417:         {this.mlist = this.Atomize.choice(this.style,mitem,i,this.mlist); i--}
 2418:       else if (this.Atomize[mitem.type]) {
 2419:         var f = this.Atomize[mitem.type]; // Opera needs separate name
 2420:         f(this.style,this.size,mitem,prev,this,i);
 2421:       }
 2422:       prev = mitem;
 2423:     }
 2424:     if (mitem && mitem.type == 'bin') {mitem.type = 'ord'}
 2425:     if (this.mlist.length >= 2 && mitem.type == 'boundary' &&
 2426:         this.mlist[0].type == 'boundary') {this.AddDelimiters(style,size)}
 2427:   },
 2428: 
 2429:   /*
 2430:    *  For a list that has boundary delimiters as its first and last
 2431:    *  entries, we replace the boundary atoms by open and close
 2432:    *  atoms whose nuclei are the specified delimiters properly sized
 2433:    *  for the contents of the list.  (Rule 19)
 2434:    */
 2435:   AddDelimiters: function(style,size) {
 2436:     var unset = -10000; var h = unset; var d = unset;
 2437:     for (var i = 0; i < this.mlist.length; i++) {
 2438:       mitem = this.mlist[i];
 2439:       if (mitem.atom || mitem.type == 'box') {
 2440:         h = Math.max(h,mitem.nuc.h+mitem.nuc.y);
 2441:         d = Math.max(d,mitem.nuc.d-mitem.nuc.y);
 2442:       }
 2443:     }
 2444:     var TeX = jsMath.TeX; var a = jsMath.Typeset.TeX(style,size).axis_height;
 2445:     var delta = Math.max(h-a,d+a);
 2446:     var H =  Math.max(Math.floor(TeX.integer*delta/500)*TeX.delimiterfactor,
 2447:                       TeX.integer*(2*delta-TeX.delimitershortfall))/TeX.integer;
 2448:     var left = this.mlist[0]; var right = this.mlist[this.mlist.length-1];
 2449:     left.nuc = jsMath.Box.Delimiter(H,left.left,style);
 2450:     right.nuc = jsMath.Box.Delimiter(H,right.right,style);
 2451:     left.type = 'open'; left.atom = 1; delete left.left;
 2452:     right.type = 'close'; right.atom = 1; delete right.right;
 2453:   },
 2454:   
 2455:   /*
 2456:    *  Typeset a math list to produce final HTML for the list.
 2457:    */
 2458:   Typeset: function (style,size) {
 2459:     var typeset = new jsMath.Typeset(this.mlist);
 2460:     return typeset.Typeset(style,size);
 2461:   }
 2462: 
 2463: });
 2464: 
 2465: 
 2466: /*
 2467:  *  These routines implement the main rules given in Appendix G of the
 2468:  *  TeXbook
 2469:  */
 2470: 
 2471: jsMath.Add(jsMath.mList.prototype.Atomize,{
 2472: 
 2473:   /*
 2474:    *  Handle a 4-way choice atom.  (Rule 4)
 2475:    */
 2476:   choice: function (style,mitem,i,mlist) {
 2477:     if (style.charAt(style.length-1) == "'") {style = style.slice(0,style.length-1)}
 2478:     var nlist = []; var M = mitem[style]; if (!M) {M = {type: 'mlist', mlist: []}}
 2479:     if (M.type == 'mlist') {
 2480:       M = M.mlist.mlist;
 2481:       for (var k = 0; k < i; k++) {nlist[k] = mlist[k]}
 2482:       for (k = 0; k < M.length; k++) {nlist[i+k] = M[k]}
 2483:       for (k = i+1; k < mlist.length; k++) {nlist[nlist.length] = mlist[k]}
 2484:       return nlist;
 2485:     } else {
 2486:       mlist[i] = jsMath.mItem.Atom('ord',M);
 2487:       return mlist;
 2488:     }
 2489:   },
 2490:   
 2491:   /*
 2492:    *  Handle \displaystyle, \textstyle, etc.
 2493:    */
 2494:   style: function (style,size,mitem,prev,mlist) {
 2495:     mlist.style = mitem.style;
 2496:   },
 2497:   
 2498:   /*
 2499:    *  Handle \tiny, \small, etc.
 2500:    */
 2501:   size: function (style,size,mitem,prev,mlist) {
 2502:     mlist.size = mitem.size;
 2503:   },
 2504:   
 2505:   /*
 2506:    *  Create empty boxes of the proper sizes for the various
 2507:    *  phantom-type commands
 2508:    */
 2509:   phantom: function (style,size,mitem) {
 2510:     var box = mitem.nuc = jsMath.Box.Set(mitem.phantom,style,size);
 2511:     if (mitem.h) {box.Remeasured(); box.html = jsMath.HTML.Spacer(box.w)}
 2512:       else {box.html = '', box.w = 0}
 2513:     if (!mitem.v) {box.h = box.d = 0}
 2514:     box.bd = box.bh = 0;
 2515:     delete mitem.phantom;
 2516:     mitem.type = 'box';
 2517:   },
 2518:   
 2519:   /*
 2520:    *  Create a box of zero height and depth containing the
 2521:    *  contents of the atom
 2522:    */
 2523:   smash: function (style,size,mitem) {
 2524:     var box = mitem.nuc = jsMath.Box.Set(mitem.smash,style,size).Remeasured();
 2525:     box.h = box.d = box.bd = box.bh = 0;
 2526:     delete mitem.smash;
 2527:     mitem.type = 'box';
 2528:   },
 2529: 
 2530:   /*
 2531:    *  Move a box up or down vertically
 2532:    */
 2533:   raise: function (style,size,mitem) {
 2534:     mitem.nuc = jsMath.Box.Set(mitem.nuc,style,size);
 2535:     var y = mitem.raise;
 2536:     mitem.nuc.html = jsMath.HTML.Place(mitem.nuc.html,0,y);
 2537:     mitem.nuc.h += y; mitem.nuc.d -= y;
 2538:     mitem.type = 'ord'; mitem.atom = 1;
 2539:   },
 2540: 
 2541:   /*
 2542:    *  Hide the size of a box so that it laps to the left or right, or
 2543:    *  up or down.
 2544:    */
 2545:   lap: function (style,size,mitem) {
 2546:     var box = jsMath.Box.Set(mitem.nuc,style,size).Remeasured();
 2547:     var mlist = [box];
 2548:     if (mitem.lap == 'llap') {box.x = -box.w} else
 2549:     if (mitem.lap == 'rlap') {mlist[1] = jsMath.mItem.Space(-box.w)} else
 2550:     if (mitem.lap == 'ulap') {box.y = box.d; box.h = box.d = 0} else
 2551:     if (mitem.lap == 'dlap') {box.y = -box.h; box.h = box.d = 0}
 2552:     mitem.nuc = jsMath.Box.SetList(mlist,style,size);
 2553:     if (mitem.lap == 'ulap' || mitem.lap == 'dlap') {mitem.nuc.h = mitem.nuc.d = 0}
 2554:     mitem.type = 'box'; delete mitem.atom;
 2555:   },
 2556: 
 2557:   /*
 2558:    *  Handle a Bin atom. (Rule 5)
 2559:    */
 2560:   bin: function (style,size,mitem,prev) {
 2561:     if (prev) {
 2562:       var type  = prev.type;
 2563:       if (type == 'bin' || type == 'op' || type == 'rel' ||
 2564:           type == 'open' || type == 'punct' || type == '' ||
 2565:           (type == 'boundary' && prev.left != '')) {mitem.type = 'ord'}
 2566:     } else {mitem.type = 'ord'}
 2567:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2568:   },
 2569: 
 2570:   /*
 2571:    *  Handle a Rel atom.  (Rule 6)
 2572:    */
 2573:   rel: function (style,size,mitem,prev) {
 2574:     if (prev.type == 'bin') {prev.type = 'ord'}
 2575:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2576:   },
 2577: 
 2578:   /*
 2579:    *  Handle a Close atom.  (Rule 6)
 2580:    */
 2581:   close: function (style,size,mitem,prev) {
 2582:     if (prev.type == 'bin') {prev.type = 'ord'}
 2583:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2584:   },
 2585: 
 2586:   /*
 2587:    *  Handle a Punct atom.  (Rule 6)
 2588:    */
 2589:   punct: function (style,size,mitem,prev) {
 2590:     if (prev.type == 'bin') {prev.type = 'ord'}
 2591:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2592:   },
 2593: 
 2594:   /*
 2595:    *  Handle an Open atom.  (Rule 7)
 2596:    */
 2597:   open: function (style,size,mitem) {
 2598:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2599:   },
 2600: 
 2601:   /*
 2602:    *  Handle an Inner atom.  (Rule 7)
 2603:    */
 2604:   inner: function (style,size,mitem) {
 2605:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2606:   },
 2607: 
 2608:   /*
 2609:    *  Handle a Vcent atom.  (Rule 8)
 2610:    */
 2611:   vcenter: function (style,size,mitem) {
 2612:     var box = jsMath.Box.Set(mitem.nuc,style,size);
 2613:     var TeX = jsMath.Typeset.TeX(style,size);
 2614:     box.y = TeX.axis_height - (box.h-box.d)/2;
 2615:     mitem.nuc = box; mitem.type = 'ord';
 2616:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2617:   },
 2618: 
 2619:   /*
 2620:    *  Handle an Over atom.  (Rule 9)
 2621:    */
 2622:   overline: function (style,size,mitem) {
 2623:     var TeX = jsMath.Typeset.TeX(style,size);
 2624:     var box = jsMath.Box.Set(mitem.nuc,jsMath.Typeset.PrimeStyle(style),size).Remeasured();
 2625:     var t = TeX.default_rule_thickness;
 2626:     var rule = jsMath.Box.Rule(box.w,t);
 2627:     rule.x = -rule.w; rule.y = box.h + 3*t;
 2628:     mitem.nuc = jsMath.Box.SetList([box,rule],style,size);
 2629:     mitem.nuc.h += t;
 2630:     mitem.type = 'ord';
 2631:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2632:   },
 2633: 
 2634:   /*
 2635:    *  Handle an Under atom.  (Rule 10)
 2636:    */
 2637:   underline: function (style,size,mitem) {
 2638:     var TeX = jsMath.Typeset.TeX(style,size);
 2639:     var box = jsMath.Box.Set(mitem.nuc,jsMath.Typeset.PrimeStyle(style),size).Remeasured();
 2640:     var t = TeX.default_rule_thickness;
 2641:     var rule = jsMath.Box.Rule(box.w,t);
 2642:     rule.x = -rule.w; rule.y = -box.d - 3*t - t;
 2643:     mitem.nuc = jsMath.Box.SetList([box,rule],style,size);
 2644:     mitem.nuc.d += t;
 2645:     mitem.type = 'ord';
 2646:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2647:   },
 2648: 
 2649:   /*
 2650:    *  Handle a Rad atom.  (Rule 11 plus stuff for \root..\of)
 2651:    */
 2652:   radical: function (style,size,mitem) {
 2653:     var TeX = jsMath.Typeset.TeX(style,size);
 2654:     var Cp = jsMath.Typeset.PrimeStyle(style);
 2655:     var box = jsMath.Box.Set(mitem.nuc,Cp,size).Remeasured();
 2656:     var t = TeX.default_rule_thickness;
 2657:     var p = t; if (style == 'D' || style == "D'") {p = TeX.x_height}
 2658:     var r = t + p/4; 
 2659:     var surd = jsMath.Box.Delimiter(box.h+box.d+r+t,0x270370,style,1);
 2660:     t = surd.h; // thickness of rule is height of surd character
 2661:     if (surd.d > box.h+box.d+r) {r = (r+surd.d-box.h-box.d)/2}
 2662:     surd.y = box.h+r;
 2663:     var rule = jsMath.Box.Rule(box.w,t);
 2664:     rule.y = surd.y-t/2; rule.h += 3*t/2; box.x = -box.w;
 2665:     var Cr = jsMath.Typeset.UpStyle(jsMath.Typeset.UpStyle(style));
 2666:     var root = jsMath.Box.Set(mitem.root,Cr,size).Remeasured();
 2667:     if (mitem.root) {
 2668:       root.y = .55*(box.h+box.d+3*t+r)-box.d; surd.x = -(11/18)*surd.w;
 2669:       root.x = Math.max((11/18)*surd.w - root.w, 0);
 2670:     }
 2671:     mitem.nuc = jsMath.Box.SetList([root,surd,rule,box],style,size);
 2672:     mitem.type = 'ord';
 2673:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2674:   },
 2675: 
 2676:   /*
 2677:    *  Handle an Acc atom.  (Rule 12)
 2678:    */
 2679:   accent: function (style,size,mitem) {
 2680:     var TeX = jsMath.Typeset.TeX(style,size);
 2681:     var Cp = jsMath.Typeset.PrimeStyle(style);
 2682:     var box = jsMath.Box.Set(mitem.nuc,Cp,size);
 2683:     var u = box.w; var s; var Font;
 2684:     if (mitem.nuc.type == 'TeX') {
 2685:       Font = jsMath.TeX[mitem.nuc.font];
 2686:       if (Font[mitem.nuc.c].krn && Font.skewchar)
 2687:         {s = Font[mitem.nuc.c].krn[Font.skewchar]}
 2688:     }
 2689:     if (s == null) {s = 0}
 2690:     
 2691:     var c = mitem.accent & 0xFF;
 2692:     var font = jsMath.TeX.fam[(mitem.accent&0xF00)>>8]; Font = jsMath.TeX[font];
 2693:     while (Font[c].n && Font[Font[c].n].w <= u) {c = Font[c].n}
 2694:     
 2695:     var delta = Math.min(box.h,TeX.x_height);
 2696:     if (mitem.nuc.type == 'TeX') {
 2697:       var nitem = jsMath.mItem.Atom('ord',mitem.nuc);
 2698:       nitem.sup = mitem.sup; nitem.sub = mitem.sub; nitem.delta = 0;
 2699:       jsMath.mList.prototype.Atomize.SupSub(style,size,nitem);
 2700:       delta += (nitem.nuc.h - box.h);
 2701:       box = mitem.nuc = nitem.nuc;
 2702:       delete mitem.sup; delete mitem.sub;
 2703:     }
 2704:     var acc = jsMath.Box.TeX(c,font,style,size);
 2705:     acc.y = box.h - delta; acc.x = -box.w + s + (u-acc.w)/2;
 2706:     if (Font[c].ic) {acc.x -= Font[c].ic * TeX.scale}
 2707: 
 2708:     mitem.nuc = jsMath.Box.SetList([box,acc],style,size);
 2709:     if (mitem.nuc.w != box.w) {
 2710:       var space = jsMath.mItem.Space(box.w-mitem.nuc.w);
 2711:       mitem.nuc = jsMath.Box.SetList([mitem.nuc,space],style,size);
 2712:     }
 2713:     mitem.type = 'ord';
 2714:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2715:   },
 2716: 
 2717:   /*
 2718:    *  Handle an Op atom.  (Rules 13 and 13a)
 2719:    */
 2720:   op: function (style,size,mitem) {
 2721:     var TeX = jsMath.Typeset.TeX(style,size); var box;
 2722:     mitem.delta = 0; var isD = (style.charAt(0) == 'D');
 2723:     if (mitem.limits == null && isD) {mitem.limits = 1}
 2724: 
 2725:     if (mitem.nuc.type == 'TeX') {
 2726:       var C = jsMath.TeX[mitem.nuc.font][mitem.nuc.c];
 2727:       if (isD && C.n) {mitem.nuc.c = C.n; C = jsMath.TeX[mitem.nuc.font][C.n]}
 2728:       box = jsMath.Box.Set(mitem.nuc,style,size);
 2729:       if (C.ic) {
 2730:         mitem.delta = C.ic * TeX.scale;
 2731:         if (mitem.limits || !mitem.sub || jsMath.msieIntegralBug) 
 2732:           {box = jsMath.Box.SetList([box,jsMath.mItem.Space(mitem.delta)],style,size)}
 2733:       }
 2734:       box.y = -((box.h+box.d)/2 - box.d - TeX.axis_height);
 2735:       if (Math.abs(box.y) < .0001) (box.y = 0)
 2736:     }
 2737: 
 2738:     if (!box) {box = jsMath.Box.Set(mitem.nuc,style,size).Remeasured()}
 2739:     if (mitem.limits) {
 2740:       var W = box.w; var x = box.w;
 2741:       var mlist = [box]; var dh = 0; var dd = 0;
 2742:       if (mitem.sup) {
 2743:         var sup = jsMath.Box.Set(mitem.sup,jsMath.Typeset.UpStyle(style),size).Remeasured();
 2744:         sup.x = ((box.w-sup.w)/2 + mitem.delta/2) - x; dh = TeX.big_op_spacing5;
 2745:         W = Math.max(W,sup.w); x += sup.x + sup.w;
 2746:         sup.y = box.h+sup.d + box.y +
 2747:                     Math.max(TeX.big_op_spacing1,TeX.big_op_spacing3-sup.d);
 2748:         mlist[mlist.length] = sup; delete mitem.sup;
 2749:       }
 2750:       if (mitem.sub) {
 2751:         var sub = jsMath.Box.Set(mitem.sub,jsMath.Typeset.DownStyle(style),size).Remeasured();
 2752:         sub.x = ((box.w-sub.w)/2 - mitem.delta/2) - x; dd = TeX.big_op_spacing5;
 2753:         W = Math.max(W,sub.w); x += sub.x + sub.w;
 2754:         sub.y = -box.d-sub.h + box.y -
 2755:                    Math.max(TeX.big_op_spacing2,TeX.big_op_spacing4-sub.h);
 2756:         mlist[mlist.length] = sub; delete mitem.sub;
 2757:       }
 2758:       if (W > box.w) {box.x = (W-box.w)/2; x += box.x}
 2759:       if (x < W) {mlist[mlist.length] = jsMath.mItem.Space(W-x)}
 2760:       mitem.nuc = jsMath.Box.SetList(mlist,style,size);
 2761:       mitem.nuc.h += dh; mitem.nuc.d += dd;
 2762:     } else {
 2763:       if (jsMath.msieIntegralBug && mitem.sub && C && C.ic) 
 2764:         {mitem.nuc = jsMath.Box.SetList([box,jsMath.Box.Space(-C.ic*TeX.scale)],style,size)}
 2765:       else if (box.y) {mitem.nuc = jsMath.Box.SetList([box],style,size)}
 2766:       jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2767:     }
 2768:   },
 2769: 
 2770:   /*
 2771:    *  Handle an Ord atom.  (Rule 14)
 2772:    */
 2773:   ord: function (style,size,mitem,prev,mList,i) {
 2774:     if (mitem.nuc.type == 'TeX' && !mitem.sup && !mitem.sub) {
 2775:       var nitem = mList.mlist[i+1];
 2776:       if (nitem && nitem.atom && nitem.type &&
 2777:           (nitem.type == 'ord' || nitem.type == 'op' || nitem.type == 'bin' ||
 2778:            nitem.type == 'rel' || nitem.type == 'open' ||
 2779:            nitem.type == 'close' || nitem.type == 'punct')) {
 2780:         if (nitem.nuc.type == 'TeX' && nitem.nuc.font == mitem.nuc.font) {
 2781:           mitem.textsymbol = 1;
 2782:           var krn = jsMath.TeX[mitem.nuc.font][mitem.nuc.c].krn;
 2783:           krn *= jsMath.Typeset.TeX(style,size).scale;
 2784:           if (krn && krn[nitem.nuc.c]) {
 2785:             for (var k = mList.mlist.length-1; k > i; k--)
 2786:               {mList.mlist[k+1] = mList.mlist[k]}
 2787:             mList.mlist[i+1] = jsMath.mItem.Space(krn[nitem.nuc.c]);
 2788:           }
 2789:         }
 2790:       }
 2791:     }
 2792:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2793:   },
 2794: 
 2795:   /*
 2796:    *  Handle a generalized fraction.  (Rules 15 to 15e)
 2797:    */
 2798:   fraction: function (style,size,mitem) {
 2799:     var TeX = jsMath.Typeset.TeX(style,size); var t = 0;
 2800:     if (mitem.thickness != null) {t = mitem.thickness}
 2801:     else if (mitem.from.match(/over/)) {t = TeX.default_rule_thickness}
 2802:     var isD = (style.charAt(0) == 'D');
 2803:     var Cn = (style == 'D')? 'T': (style == "D'")? "T'": jsMath.Typeset.UpStyle(style);
 2804:     var Cd = (isD)? "T'": jsMath.Typeset.DownStyle(style);
 2805:     var num = jsMath.Box.Set(mitem.num,Cn,size).Remeasured();
 2806:     var den = jsMath.Box.Set(mitem.den,Cd,size).Remeasured();
 2807: 
 2808:     var u; var v; var w;
 2809:     var H = (isD)? TeX.delim1 : TeX.delim2;
 2810:     var mlist = [jsMath.Box.Delimiter(H,mitem.left,style)]
 2811:     var right = jsMath.Box.Delimiter(H,mitem.right,style);
 2812: 
 2813:     if (num.w < den.w) {
 2814:       num.x = (den.w-num.w)/2;
 2815:       den.x = -(num.w + num.x);
 2816:       w = den.w; mlist[1] = num; mlist[2] = den;
 2817:     } else {
 2818:       den.x = (num.w-den.w)/2;
 2819:       num.x = -(den.w + den.x);
 2820:       w = num.w; mlist[1] = den; mlist[2] = num;
 2821:     }
 2822:     if (isD) {u = TeX.num1; v = TeX.denom1} else {
 2823:       u = (t != 0)? TeX.num2: TeX.num3;
 2824:       v = TeX.denom2;
 2825:     }
 2826:     if (t == 0) {// atop
 2827:       var p = (isD)? 7*TeX.default_rule_thickness: 3*TeX.default_rule_thickness;
 2828:       var r = (u - num.d) - (den.h - v);
 2829:       if (r < p) {u += (p-r)/2; v += (p-r)/2}
 2830:     } else {// over
 2831:       var p = (isD)? 3*t: t; var a = TeX.axis_height;
 2832:       var r = (u-num.d)-(a+t/2); if (r < p) {u += p-r}
 2833:           r = (a-t/2)-(den.h-v); if (r < p) {v += p-r}
 2834:       var rule = jsMath.Box.Rule(w,t); rule.x = -w; rule.y = a - t/2;
 2835:       mlist[mlist.length] = rule;
 2836:     }
 2837:     num.y = u; den.y = -v;
 2838: 
 2839:     mlist[mlist.length] = right;
 2840:     mitem.nuc = jsMath.Box.SetList(mlist,style,size);
 2841:     mitem.type = 'ord'; mitem.atom = 1;
 2842:     delete mitem.num; delete mitem.den;
 2843:     jsMath.mList.prototype.Atomize.SupSub(style,size,mitem);
 2844:   },
 2845: 
 2846:   /*
 2847:    *  Add subscripts and superscripts.  (Rules 17-18f)
 2848:    */
 2849:   SupSub: function (style,size,mitem) {
 2850:     var TeX = jsMath.Typeset.TeX(style,size);
 2851:     var nuc = mitem.nuc;
 2852:     var box = mitem.nuc = jsMath.Box.Set(mitem.nuc,style,size,0);
 2853:     if (box.format == 'null') 
 2854:       {box = mitem.nuc = jsMath.Box.Text('','normal',style,size)}
 2855: 
 2856:     if (nuc.type == 'TeX') {
 2857:       if (!mitem.textsymbol) {
 2858:         var C = jsMath.TeX[nuc.font][nuc.c];
 2859:         if (C.ic) {
 2860:           mitem.delta = C.ic * TeX.scale;
 2861:           if (!mitem.sub) {
 2862:             box = mitem.nuc = jsMath.Box.SetList([box,jsMath.Box.Space(mitem.delta)],style,size);
 2863:             mitem.delta = 0;
 2864:           }
 2865:         }
 2866:       } else {mitem.delta = 0}
 2867:     }
 2868: 
 2869:     if (!mitem.sup && !mitem.sub) return;
 2870:     mitem.nuc.Styled();
 2871:     
 2872:     var Cd = jsMath.Typeset.DownStyle(style);
 2873:     var Cu = jsMath.Typeset.UpStyle(style);
 2874:     var q = jsMath.Typeset.TeX(Cu,size).sup_drop;
 2875:     var r = jsMath.Typeset.TeX(Cd,size).sub_drop;
 2876:     var u = 0; var v = 0; var p;
 2877:     if (nuc.type != 'text' && nuc.type != 'TeX' && nuc.type != 'null')
 2878:       {u = box.h - q; v = box.d + r}
 2879: 
 2880:     if (mitem.sub) {
 2881:       var sub = jsMath.Box.Set(mitem.sub,Cd,size);
 2882:       sub = jsMath.Box.SetList([sub,jsMath.mItem.Space(TeX.scriptspace)],style,size);
 2883:     }
 2884: 
 2885:     if (!mitem.sup) {
 2886:       sub.y = -Math.max(v,TeX.sub1,sub.h-(4/5)*jsMath.Typeset.TeX(Cd,size).x_height);
 2887:       mitem.nuc = jsMath.Box.SetList([box,sub],style,size).Styled(); delete mitem.sub;
 2888:       return;
 2889:     }
 2890: 
 2891:     var sup = jsMath.Box.Set(mitem.sup,Cu,size);
 2892:     sup = jsMath.Box.SetList([sup,jsMath.mItem.Space(TeX.scriptspace)],style,size);
 2893:     if (style == 'D') {p = TeX.sup1}
 2894:     else if (style.charAt(style.length-1) == "'") {p = TeX.sup3}
 2895:     else {p = TeX.sup2}
 2896:     u = Math.max(u,p,sup.d+jsMath.Typeset.TeX(Cu,size).x_height/4);
 2897: 
 2898:     if (!mitem.sub) {
 2899:       sup.y = u;
 2900:       mitem.nuc = jsMath.Box.SetList([box,sup],style,size); delete mitem.sup;
 2901:       return;
 2902:     }
 2903: 
 2904:     v = Math.max(v,jsMath.Typeset.TeX(Cd,size).sub2);
 2905:     var t = TeX.default_rule_thickness;
 2906:     if ((u-sup.d) - (sub.h -v) < 4*t) {
 2907:       v = 4*t + sub.h - (u-sup.d);
 2908:       p = (4/5)*TeX.x_height - (u-sup.d);
 2909:       if (p > 0) {u += p; v -= p}
 2910:     }
 2911:     sup.Remeasured(); sub.Remeasured();
 2912:     sup.y = u; sub.y = -v; sup.x = mitem.delta;
 2913:     if (sup.w+sup.x > sub.w)
 2914:       {sup.x -= sub.w; mitem.nuc = jsMath.Box.SetList([box,sub,sup],style,size)} else
 2915:       {sub.x -= (sup.w+sup.x); mitem.nuc = jsMath.Box.SetList([box,sup,sub],style,size)}
 2916: 
 2917:     delete mitem.sup; delete mitem.sub;
 2918:   }
 2919: 
 2920: });
 2921: 
 2922: 
 2923: /***************************************************************************/
 2924: 
 2925: /*
 2926:  *  The Typeset object handles most of the TeX-specific processing
 2927:  */
 2928: 
 2929: jsMath.Typeset = function (mlist) {
 2930:   this.type = 'typeset';
 2931:   this.mlist = mlist;
 2932: }
 2933: 
 2934: jsMath.Add(jsMath.Typeset,{
 2935: 
 2936:   /*
 2937:    *  The "C-uparrow" style table (TeXbook, p. 441)
 2938:    */
 2939:   upStyle: {
 2940:     D: "S", T: "S",  "D'": "S'", "T'": "S'",
 2941:     S: "SS",  SS: "SS",  "S'": "SS'", "SS'": "SS'"
 2942:   },
 2943: 
 2944:   /*
 2945:    *  The "C-downarrow" style table (TeXbook, p. 441)
 2946:    */
 2947:   downStyle: {
 2948:     D: "S'", T: "S'",  "D'": "S'", "T'": "S'",
 2949:     S: "SS'",  SS: "SS'",  "S'": "SS'", "SS'": "SS'"
 2950:   },
 2951: 
 2952:   /*
 2953:    *  Get the various styles given the current style
 2954:    *  (see TeXbook, p. 441)
 2955:    */
 2956:   UpStyle: function (style) {return this.upStyle[style]},
 2957:   DownStyle: function (style) {return this.downStyle[style]},
 2958:   PrimeStyle: function (style) {
 2959:     if (style.charAt(style.length-1) == "'") {return style}
 2960:     return style + "'"
 2961:   },
 2962: 
 2963:   /*
 2964:    *  A value scaled to the appropriate size for scripts
 2965:    */
 2966:   StyleValue: function (style,v) {
 2967:     if (style == "S" || style == "S'")   {return .7*v}
 2968:     if (style == "SS" || style == "SS'") {return .5*v}
 2969:     return v;
 2970:   },
 2971: 
 2972:   /*
 2973:    *  Return the font parameter table for the given style
 2974:    */
 2975:   TeX: function (style,size) {
 2976:     if      (style == "S" || style == "S'")   {size = Math.max(0,size-2)}
 2977:     else if (style == "SS" || style == "SS'") {size = Math.max(0,size-4)}
 2978:     return jsMath.TeXparams[size];
 2979:   },
 2980: 
 2981: 
 2982:   /*
 2983:    *  Add the CSS class for the given TeX style
 2984:    */
 2985:   AddStyle: function (style,size,html) {
 2986:     if      (style == "S" || style == "S'")   {size = Math.max(0,size-2)}
 2987:     else if (style == "SS" || style == "SS'") {size = Math.max(0,size-4)}
 2988:     if (size != 4) {html = '<SPAN CLASS="size'+size+'">' + html + '</SPAN>'}
 2989:     return html;
 2990:   },
 2991: 
 2992:   /*
 2993:    *  Add the font class, if needed
 2994:    */
 2995:   AddClass: function (tclass,html) {
 2996:     if (tclass != '' && tclass != 'normal') {html = jsMath.HTML.Class(tclass,html)}
 2997:     return html;
 2998:   }
 2999: 
 3000: });
 3001: 
 3002: 
 3003: jsMath.Package(jsMath.Typeset,{
 3004:   
 3005:   /*
 3006:    *  The spacing tables for inter-atom spacing
 3007:    *  (See rule 20, and Chapter 18, p 170)
 3008:    */
 3009:   DTsep: {
 3010:     ord: {op: 1, bin: 2, rel: 3, inner: 1},
 3011:     op:  {ord: 1, op: 1, rel: 3, inner: 1},
 3012:     bin: {ord: 2, op: 2, open: 2, inner: 2},
 3013:     rel: {ord: 3, op: 3, open: 3, inner: 3},
 3014:     open: {},
 3015:     close: {op: 1, bin:2, rel: 3, inner: 1},
 3016:     punct: {ord: 1, op: 1, rel: 1, open: 1, close: 1, punct: 1, inner: 1},
 3017:     inner: {ord: 1, op: 1, bin: 2, rel: 3, open: 1, punct: 1, inner: 1}
 3018:   },
 3019: 
 3020:   SSsep: {
 3021:     ord: {op: 1},
 3022:     op:  {ord: 1, op: 1},
 3023:     bin: {},
 3024:     rel: {},
 3025:     open: {},
 3026:     close: {op: 1},
 3027:     punct: {},
 3028:     inner: {op: 1}
 3029:   },
 3030: 
 3031:   /*
 3032:    *  The sizes used in the tables above
 3033:    */
 3034:   sepW: ['','thinmuskip','medmuskip','thickmuskip'],
 3035:   
 3036:   
 3037:   /*
 3038:    *  Find the amount of separation to use between two adjacent
 3039:    *  atoms in the given style
 3040:    */
 3041:   GetSeparation: function (l,r,style) {
 3042:     if (l && l.atom && r.atom) {
 3043:       var table = this.DTsep; if (style.charAt(0) == "S") {table = this.SSsep}
 3044:       var row = table[l.type];
 3045:       if (row && row[r.type] != null) {return jsMath.TeX[this.sepW[row[r.type]]]}
 3046:     }
 3047:     return 0;
 3048:   },
 3049: 
 3050:   /*
 3051:    *  Typeset an mlist (i.e., turn it into HTML).
 3052:    *  Here, text items of the same class and style are combined
 3053:    *  to reduce the number of <SPAN> tags used (though it is still
 3054:    *  huge).  Spaces are combined, when possible.
 3055:    *  ###  More needs to be done with that.  ###
 3056:    *  The width of the final box is recomputed at the end, since
 3057:    *  the final width is not necessarily the sum of the widths of
 3058:    *  the individual parts (widths are in pixels, but the browsers
 3059:    *  puts pieces together using sub-pixel accuracy).
 3060:    */
 3061:   Typeset: function (style,size) {
 3062:     this.style = style; this.size = size; var unset = -10000
 3063:     this.w = 0; this.h = unset; this.d = unset;
 3064:     this.bh = this.h; this.bd = this.d;
 3065:     this.tbuf = ''; this.tx = 0; this.tclass = '';
 3066:     this.cbuf = ''; this.hbuf = ''; this.hx = 0;
 3067:     var mitem = null; var prev; this.x = 0; this.dx = 0;
 3068: 
 3069:     for (var i = 0; i < this.mlist.length; i++) {
 3070:       prev = mitem; mitem = this.mlist[i];
 3071:       switch (mitem.type) {
 3072: 
 3073:         case 'size':
 3074:           this.FlushClassed();
 3075:           this.size = mitem.size;
 3076:           mitem = prev; // hide this from TeX
 3077:           break;
 3078: 
 3079:         case 'style':
 3080:           this.FlushClassed();
 3081:           if (this.style.charAt(this.style.length-1) == "'")
 3082:             {this.style = mitem.style + "'"} else {this.style = mitem.style}
 3083:           mitem = prev; // hide this from TeX
 3084:           break;
 3085: 
 3086:         case 'space':
 3087:           if (typeof(mitem.w) == 'object') {
 3088:             if (this.style.charAt(1) == 'S') {mitem.w = .5*mitem.w[0]/18}
 3089:             else if (this.style.charAt(0) == 'S') {mitem.w = .7*mitem.w[0]/18}
 3090:             else {mitem.w = mitem.w[0]/18}
 3091:           }
 3092:           this.dx += mitem.w-0; // mitem.w is sometimes a string?
 3093:           mitem = prev; // hide this from TeX
 3094:           break;
 3095:           
 3096:         case 'html':
 3097:           this.FlushClassed();
 3098:           if (this.hbuf == '') {this.hx = this.x}
 3099:           this.hbuf += mitem.html;
 3100:           mitem = prev; // hide this from TeX
 3101:           break;
 3102:           
 3103:         default:   // atom
 3104:           if (!mitem.atom && mitem.type != 'box') break;
 3105:           mitem.nuc.x += this.dx + this.GetSeparation(prev,mitem,this.style);
 3106:           if (mitem.nuc.y || mitem.nuc.x) mitem.nuc.Styled();
 3107:           this.dx = 0; this.x = this.x + this.w;
 3108:           this.w += mitem.nuc.w + mitem.nuc.x;
 3109:           if (mitem.nuc.format == 'text') {
 3110:             if (this.tclass != mitem.nuc.tclass && this.tclass != '') this.FlushText();
 3111:             if (this.tbuf == '' && this.cbuf == '') {this.tx = this.x}
 3112:             this.tbuf += mitem.nuc.html; this.tclass = mitem.nuc.tclass;
 3113:           } else  {
 3114:             this.FlushClassed();
 3115:             if (mitem.nuc.x || mitem.nuc.y) this.Place(mitem.nuc);
 3116:             if (this.hbuf == '') {this.hx = this.x}
 3117:             this.hbuf += mitem.nuc.html;
 3118:           }
 3119:           this.h = Math.max(this.h,mitem.nuc.h+mitem.nuc.y); this.bh = Math.max(this.bh,mitem.nuc.bh);
 3120:           this.d = Math.max(this.d,mitem.nuc.d-mitem.nuc.y); this.bd = Math.max(this.bd,mitem.nuc.bd);
 3121:           break;
 3122:       }
 3123:     }
 3124:     
 3125:     this.FlushClassed(); // make sure scaling is included
 3126:     if (this.dx) {this.hbuf += jsMath.HTML.Spacer(this.dx)}
 3127:     if (this.hbuf == '') {return jsMath.Box.Null}
 3128:     if (this.h == unset) {this.h = 0}
 3129:     if (this.d == unset) {this.d = 0}
 3130:     var box = new jsMath.Box('html',this.hbuf,this.w,this.h,this.d);
 3131:     box.bh = this.bh; box.bd = this.bd;
 3132:     return box;
 3133:   },
 3134: 
 3135:   /*
 3136:    *  Add the font to the buffered text and move it to the
 3137:    *  classed-text buffer.
 3138:    */
 3139:   FlushText: function () {
 3140:     if (this.tbuf == '') return;
 3141:     this.cbuf += jsMath.Typeset.AddClass(this.tclass,this.tbuf);
 3142:     this.tbuf = ''; this.tclass = '';
 3143:   },
 3144: 
 3145:   /*
 3146:    *  Add the script or scriptscript style to the text and
 3147:    *  move it to the HTML buffer
 3148:    */
 3149:   FlushClassed: function () {
 3150:     this.FlushText();
 3151:     if (this.cbuf == '') return;
 3152:     if (this.hbuf == '') {this.hx = this.tx}
 3153:     this.hbuf += jsMath.Typeset.AddStyle(this.style,this.size,this.cbuf);
 3154:     this.cbuf = '';
 3155:   },
 3156: 
 3157:   /*
 3158:    *  Add a <SPAN> to position an item's HTML, and
 3159:    *  adjust the items height and depth.
 3160:    *  (This may be replaced buy one of the following browser-specific
 3161:    *   versions by InitBrowser().)
 3162:    */
 3163:   Place: function (item) {
 3164:     var html = '<SPAN STYLE="position: relative;';
 3165:     if (item.x) {html += ' margin-left:'+jsMath.HTML.Em(item.x)+';'}
 3166:     if (item.y) {html += ' top:'+jsMath.HTML.Em(-item.y)+';'}
 3167:     item.html = html + '">' + item.html + '</SPAN>';
 3168:     item.h += item.y; item.d -= item.y;
 3169:     item.x = 0; item.y = 0;
 3170:   },
 3171:   
 3172:   /*
 3173:    *  A replacement for Place() above that fixes a bug in MSIE.
 3174:    *  (A separate <SPAN> is used to backspace, otherwise the
 3175:    *   contents are clipped incorrectly.)
 3176:    */
 3177:   PlaceSeparateNegative: function (item) {
 3178:     var html = '<SPAN STYLE="position: relative;';
 3179:     // MSIE needs backspacing as separate SPAN
 3180:     if (item.x < 0) 
 3181:       {html = '<SPAN STYLE="margin-left:'+jsMath.HTML.Em(item.x)+';"></SPAN>'+html}
 3182:     if (item.x > 0) {html += ' margin-left:'+jsMath.HTML.Em(item.x)+';'}
 3183:     if (item.y) {html += ' top:'+jsMath.HTML.Em(-item.y)+';'}
 3184:     item.html = html + '">' + item.html + '</SPAN>';
 3185:     item.h += item.y; item.d -= item.y;
 3186:     item.x = 0; item.y = 0;
 3187:   },
 3188: 
 3189:   /*
 3190:    *  Here, the horizontal spacing is always done separately.
 3191:    */
 3192:   PlaceSeparateSkips: function (item) {
 3193:     if (item.y) 
 3194:       {item.html = '<SPAN STYLE="position: relative; top:'+jsMath.HTML.Em(-item.y)+';'
 3195:                        + '">' + item.html + '</SPAN>'}
 3196:     if (item.x) 
 3197:       {item.html = jsMath.msieSpaceFix
 3198:                        + '<SPAN STYLE="margin-left:'+jsMath.HTML.Em(item.x)+';">'
 3199:                        + '</SPAN>' + item.html}
 3200:     item.h += item.y; item.d -= item.y;
 3201:     item.x = 0; item.y = 0;
 3202:   }
 3203:   
 3204: });
 3205: 
 3206: 
 3207: 
 3208: /***************************************************************************/
 3209: 
 3210: /*
 3211:  *  The Parse object handles the parsing of the TeX input string, and creates
 3212:  *  the mList to be typeset by the Typeset object above.
 3213:  */
 3214: 
 3215: jsMath.Parse = function (s,font,size,style) {
 3216:   var parse = new jsMath.Parser(s,font,size,style);
 3217:   parse.Parse();
 3218:   return parse;
 3219: }
 3220: 
 3221: jsMath.Parser = function (s,font,size,style) {
 3222:   this.string = s; this.i = 0;
 3223:   this.mlist = new jsMath.mList(null,font,size,style);
 3224: }
 3225: 
 3226: jsMath.Package(jsMath.Parser,{
 3227:   
 3228:   // special characters
 3229:   cmd:   '\\',
 3230:   open:  '{',
 3231:   close: '}',
 3232: 
 3233:   // patterns for letters and numbers
 3234:   letter:  /[a-z]/i,
 3235:   number:  /[0-9]/,
 3236:   
 3237:   //  the \mathchar definitions (see Appendix B of the TeXbook).
 3238:   mathchar: {
 3239:     '!': 0x5021,
 3240:     '(': 0x4028,
 3241:     ')': 0x5029,
 3242:     '*': 0x2203, // \ast
 3243:     '+': 0x202B,
 3244:     ',': 0x613B,
 3245:     '-': 0x2200,
 3246:     '.': 0x013A,
 3247:     '/': 0x013D,
 3248:     ':': 0x303A,
 3249:     ';': 0x603B,
 3250:     '<': 0x313C,
 3251:     '=': 0x303D,
 3252:     '>': 0x313E,
 3253:     '?': 0x503F,
 3254:     '[': 0x405B,
 3255:     ']': 0x505D,
 3256: //  '{': 0x4266,
 3257: //  '}': 0x5267,
 3258:     '|': 0x026A
 3259:   },
 3260: 
 3261:   //  handle special \catcode characters
 3262:   special: {
 3263:     '^':   'HandleSuperscript',
 3264:     '_':   'HandleSubscript',
 3265:     ' ':   'Space',
 3266:     "\t":  'Space',
 3267:     "\r":  'Space',
 3268:     "\n":  'Space',
 3269:     "'":   'Prime',
 3270:     '%':   'HandleComment',
 3271:     '&':   'HandleEntry'
 3272:   },
 3273: 
 3274:   // the \mathchardef table (see Appendix B of the TeXbook).
 3275:   mathchardef: {
 3276:   // brace parts
 3277:     braceld:      0x37A,
 3278:     bracerd:      0x37B,
 3279:     bracelu:      0x37C,
 3280:     braceru:      0x37D,
 3281: 
 3282:   // Greek letters
 3283:     alpha:        0x010B,
 3284:     beta:         0x010C,
 3285:     gamma:        0x010D,
 3286:     delta:        0x010E,
 3287:     epsilon:      0x010F,
 3288:     zeta:         0x0110,
 3289:     eta:          0x0111,
 3290:     theta:        0x0112,
 3291:     iota:         0x0113,
 3292:     kappa:        0x0114,
 3293:     lambda:       0x0115,
 3294:     mu:           0x0116,
 3295:     nu:           0x0117,
 3296:     xi:           0x0118,
 3297:     pi:           0x0119,
 3298:     rho:          0x011A,
 3299:     sigma:        0x011B,
 3300:     tau:          0x011C,
 3301:     upsilon:      0x011D,
 3302:     phi:          0x011E,
 3303:     chi:          0x011F,
 3304:     psi:          0x0120,
 3305:     omega:        0x0121,
 3306:     varepsilon:   0x0122,
 3307:     vartheta:     0x0123,
 3308:     varpi:        0x0124,
 3309:     varrho:       0x0125,
 3310:     varsigma:     0x0126,
 3311:     varphi:       0x0127,
 3312:     
 3313:     Gamma:        0x7000,
 3314:     Delta:        0x7001,
 3315:     Theta:        0x7002,
 3316:     Lambda:       0x7003,
 3317:     Xi:           0x7004,
 3318:     Pi:           0x7005,
 3319:     Sigma:        0x7006,
 3320:     Upsilon:      0x7007,
 3321:     Phi:          0x7008,
 3322:     Psi:          0x7009,
 3323:     Omega:        0x700A,
 3324: 
 3325:   // Ord symbols
 3326:     aleph:        0x0240,
 3327:     imath:        0x017B,
 3328:     jmath:        0x017C,
 3329:     ell:          0x0160,
 3330:     wp:           0x017D,
 3331:     Re:           0x023C,
 3332:     Im:           0x023D,
 3333:     partial:      0x0140,
 3334:     infty:        0x0231,
 3335:     prime:        0x0230,
 3336:     emptyset:     0x023B,
 3337:     nabla:        0x0272,
 3338:     surd:         0x1270,
 3339:     top:          0x023E,
 3340:     bot:          0x023F,
 3341:     triangle:     0x0234,
 3342:     forall:       0x0238,
 3343:     exists:       0x0239,
 3344:     neg:          0x023A,
 3345:     lnot:         0x023A,
 3346:     flat:         0x015B,
 3347:     natural:      0x015C,
 3348:     sharp:        0x015D,
 3349:     clubsuit:     0x027C,
 3350:     diamondsuit:  0x027D,
 3351:     heartsuit:    0x027E,
 3352:     spadesuit:    0x027F,
 3353: 
 3354:   // big ops
 3355:     coprod:      0x1360,
 3356:     bigvee:      0x1357,
 3357:     bigwedge:    0x1356,
 3358:     biguplus:    0x1355,
 3359:     bigcap:      0x1354,
 3360:     bigcup:      0x1353,
 3361:     intop:       0x1352, 
 3362:     prod:        0x1351,
 3363:     sum:         0x1350,
 3364:     bigotimes:   0x134E,
 3365:     bigoplus:    0x134C,
 3366:     bigodot:     0x134A,
 3367:     ointop:      0x1348,
 3368:     bigsqcup:    0x1346,
 3369:     smallint:    0x1273,
 3370: 
 3371:   // binary operations
 3372:     triangleleft:      0x212F,
 3373:     triangleright:     0x212E,
 3374:     bigtriangleup:     0x2234,
 3375:     bigtriangledown:   0x2235,
 3376:     wedge:       0x225E,
 3377:     land:        0x225E,
 3378:     vee:         0x225F,
 3379:     lor:         0x225F,
 3380:     cap:         0x225C,
 3381:     cup:         0x225B,
 3382:     ddagger:     0x227A,
 3383:     dagger:      0x2279,
 3384:     sqcap:       0x2275,
 3385:     sqcup:       0x2274,
 3386:     uplus:       0x225D,
 3387:     amalg:       0x2271,
 3388:     diamond:     0x2205,
 3389:     bullet:      0x220F,
 3390:     wr:          0x226F,
 3391:     div:         0x2204,
 3392:     odot:        0x220C,
 3393:     oslash:      0x220B,
 3394:     otimes:      0x220A,
 3395:     ominus:      0x2209,
 3396:     oplus:       0x2208,
 3397:     mp:          0x2207,
 3398:     pm:          0x2206,
 3399:     circ:        0x220E,
 3400:     bigcirc:     0x220D,
 3401:     setminus:    0x226E, // for set difference A\setminus B
 3402:     cdot:        0x2201,
 3403:     ast:         0x2203,
 3404:     times:       0x2202,
 3405:     star:        0x213F,
 3406: 
 3407:   // Relations
 3408:     propto:      0x322F,
 3409:     sqsubseteq:  0x3276,
 3410:     sqsupseteq:  0x3277,
 3411:     parallel:    0x326B,
 3412:     mid:         0x326A,
 3413:     dashv:       0x3261,
 3414:     vdash:       0x3260,
 3415:     leq:         0x3214,
 3416:     le:          0x3214,
 3417:     geq:         0x3215,
 3418:     ge:          0x3215,
 3419:     succ:        0x321F,
 3420:     prec:        0x321E,
 3421:     approx:      0x3219,
 3422:     succeq:      0x3217,
 3423:     preceq:      0x3216,
 3424:     supset:      0x321B,
 3425:     subset:      0x321A,
 3426:     supseteq:    0x3213,
 3427:     subseteq:    0x3212,
 3428:     'in':        0x3232,
 3429:     ni:          0x3233,
 3430:     owns:        0x3233,
 3431:     gg:          0x321D,
 3432:     ll:          0x321C,
 3433:     not:         0x3236,
 3434:     sim:         0x3218,
 3435:     simeq:       0x3227,
 3436:     perp:        0x323F,
 3437:     equiv:       0x3211,
 3438:     asymp:       0x3210,
 3439:     smile:       0x315E,
 3440:     frown:       0x315F,
 3441: 
 3442:   // Arrows
 3443:     Leftrightarrow:   0x322C,
 3444:     Leftarrow:        0x3228,
 3445:     Rightarrow:       0x3229,
 3446:     leftrightarrow:   0x3224,
 3447:     leftarrow:        0x3220,
 3448:     gets:             0x3220,
 3449:     rightarrow:       0x3221,
 3450:     to:               0x3221,
 3451:     mapstochar:       0x3237,
 3452:     leftharpoonup:    0x3128,
 3453:     leftharpoondown:  0x3129,
 3454:     rightharpoonup:   0x312A,
 3455:     rightharpoondown: 0x312B,
 3456:     nearrow:          0x3225,
 3457:     searrow:          0x3226,
 3458:     nwarrow:          0x322D,
 3459:     swarrow:          0x322E,
 3460: 
 3461:     hbarchar:   0x0016, // for \hbar
 3462:     lhook:      0x312C,
 3463:     rhook:      0x312D,
 3464: 
 3465:     ldotp:      0x613A, // ldot as a punctuation mark
 3466:     cdotp:      0x6201, // cdot as a punctuation mark
 3467:     colon:      0x603A, // colon as a punctuation mark
 3468: 
 3469:     '#':        0x7023,
 3470:     '$':        0x7024,
 3471:     '%':        0x7025,
 3472:     '&':        0x7026
 3473:   },
 3474:   
 3475:   // The delimiter table (see Appendix B of the TeXbook)
 3476:   delimiter: {
 3477:     '(':                0x0028300,
 3478:     ')':                0x0029301,
 3479:     '[':                0x005B302,
 3480:     ']':                0x005D303,
 3481:     '<':                0x026830A,
 3482:     '>':                0x026930B,
 3483:     '/':                0x002F30E,
 3484:     '|':                0x026A30C,
 3485:     '.':                0x0000000,
 3486:     '\\':               0x026E30F,
 3487:     '\\lmoustache':     0x437A340,  // top from (, bottom from )
 3488:     '\\rmoustache':     0x537B341,  // top from ), bottom from (
 3489:     '\\lgroup':         0x462833A,  // extensible ( with sharper tips
 3490:     '\\rgroup':         0x562933B,  // extensible ) with sharper tips
 3491:     '\\arrowvert':      0x026A33C,  // arrow without arrowheads
 3492:     '\\Arrowvert':      0x026B33D,  // double arrow without arrowheads
 3493: //  '\\bracevert':      0x077C33E,  // the vertical bar that extends braces
 3494:     '\\bracevert':      0x026A33E,  // we don't load tt, so use | instead
 3495:     '\\Vert':           0x026B30D,
 3496:     '\\|':              0x026B30D,
 3497:     '\\vert':           0x026A30C,
 3498:     '\\uparrow':        0x3222378,
 3499:     '\\downarrow':      0x3223379,
 3500:     '\\updownarrow':    0x326C33F,
 3501:     '\\Uparrow':        0x322A37E,
 3502:     '\\Downarrow':      0x322B37F,
 3503:     '\\Updownarrow':    0x326D377,
 3504:     '\\backslash':      0x026E30F,  // for double coset G\backslash H
 3505:     '\\rangle':         0x526930B,
 3506:     '\\langle':         0x426830A,
 3507:     '\\rbrace':         0x5267309,
 3508:     '\\lbrace':         0x4266308,
 3509:     '\\}':              0x5267309,
 3510:     '\\{':              0x4266308,
 3511:     '\\rceil':          0x5265307,
 3512:     '\\lceil':          0x4264306,
 3513:     '\\rfloor':         0x5263305,
 3514:     '\\lfloor':         0x4262304
 3515:   },
 3516: 
 3517:   /*
 3518:    *  The basic macros for plain TeX.
 3519:    *
 3520:    *  When the control sequence on the left is called, the JavaScript
 3521:    *  funtion on the right is called, with the name of the control sequence
 3522:    *  as its first parameter (this way, the same function can be called by
 3523:    *  several different control sequences to do similar actions, and the
 3524:    *  function can still tell which TeX command was issued).  If the right
 3525:    *  is an array, the first entry is the routine to call, and the
 3526:    *  remaining entries in the array are parameters to pass to the function
 3527:    *  as the second parameter (they are in an array reference).
 3528:    *  
 3529:    *  Note:  TeX macros as defined by the user are discussed below.
 3530:    */
 3531:   macros: {
 3532:     displaystyle:      ['HandleStyle','D'],
 3533:     textstyle:         ['HandleStyle','T'],
 3534:     scriptstyle:       ['HandleStyle','S'],
 3535:     scriptscriptstyle: ['HandleStyle','SS'],
 3536:     
 3537:     rm:                ['HandleFont',0],
 3538:     mit:               ['HandleFont',1],
 3539:     oldstyle:          ['HandleFont',1],
 3540:     cal:               ['HandleFont',2],
 3541:     it:                ['HandleFont',4],
 3542:     bf:                ['HandleFont',6],
 3543:     
 3544:     left:              'HandleLeft',
 3545:     right:             'HandleRight',
 3546: 
 3547:     arcsin:       ['NamedOp',0],
 3548:     arccos:       ['NamedOp',0],
 3549:     arctan:       ['NamedOp',0],
 3550:     arg:          ['NamedOp',0],
 3551:     cos:          ['NamedOp',0],
 3552:     cosh:         ['NamedOp',0],
 3553:     cot:          ['NamedOp',0],
 3554:     coth:         ['NamedOp',0],
 3555:     csc:          ['NamedOp',0],
 3556:     deg:          ['NamedOp',0],
 3557:     det:           'NamedOp',
 3558:     dim:          ['NamedOp',0],
 3559:     exp:          ['NamedOp',0],
 3560:     gcd:           'NamedOp',
 3561:     hom:          ['NamedOp',0],
 3562:     inf:           'NamedOp',
 3563:     ker:          ['NamedOp',0],
 3564:     lg:           ['NamedOp',0],
 3565:     lim:           'NamedOp',
 3566:     liminf:       ['NamedOp',null,'lim<SPAN STYLE="margin-left: '+1/6+'em"></SPAN>inf'],
 3567:     limsup:       ['NamedOp',null,'lim<SPAN STYLE="margin-left: '+1/6+'em"></SPAN>sup'],
 3568:     ln:           ['NamedOp',0],
 3569:     log:          ['NamedOp',0],
 3570:     max:           'NamedOp',
 3571:     min:           'NamedOp',
 3572:     Pr:            'NamedOp',
 3573:     sec:          ['NamedOp',0],
 3574:     sin:          ['NamedOp',0],
 3575:     sinh:         ['NamedOp',0],
 3576:     sup:           'NamedOp',
 3577:     tan:          ['NamedOp',0],
 3578:     tanh:         ['NamedOp',0],
 3579: 
 3580:     vcenter:        ['HandleAtom','vcenter'],
 3581:     overline:       ['HandleAtom','overline'],
 3582:     underline:      ['HandleAtom','underline'],
 3583:     over:            'HandleOver',
 3584:     overwithdelims:  'HandleOver',
 3585:     atop:            'HandleOver',
 3586:     atopwithdelims:  'HandleOver',
 3587:     above:           'HandleOver',
 3588:     abovewithdelims: 'HandleOver',
 3589:     brace:           ['HandleOver','\\{','\\}'],
 3590:     brack:           ['HandleOver','[',']'],
 3591:     choose:          ['HandleOver','(',')'],
 3592:     
 3593:     overbrace:       ['HandleLeaders','downbrace',1],
 3594:     underbrace:      ['HandleLeaders','upbrace',1,1],
 3595:     overrightarrow:  ['HandleLeaders','rightarrow'],
 3596:     overleftarrow:   ['HandleLeaders','leftarrow'],
 3597: 
 3598:     llap:            'HandleLap',
 3599:     rlap:            'HandleLap',
 3600:     ulap:            'HandleLap',
 3601:     dlap:            'HandleLap',
 3602:     raise:           'RaiseLower',
 3603:     lower:           'RaiseLower',
 3604:     moveleft:        'MoveLeftRight',
 3605:     moveright:       'MoveLeftRight',
 3606: 
 3607:     frac:            'Frac',
 3608:     root:            'Root',
 3609:     sqrt:            'Sqrt',
 3610: 
 3611:     //  TeX substitution macros
 3612:     hbar:               ['Macro','\\hbarchar\\kern-.5em h'],
 3613:     ne:                 ['Macro','\\not='],
 3614:     neq:                ['Macro','\\not='],
 3615:     notin:              ['Macro','\\mathrel{\\rlap{\\kern2mu/}}\\in'],
 3616:     cong:               ['Macro','\\mathrel{\\lower2mu{\\mathrel{{\\rlap{=}\\raise6mu\\sim}}}}'],
 3617:     bmod:               ['Macro','\\mathbin{\\rm mod}'],
 3618:     pmod:               ['Macro','\\kern 18mu ({\\rm mod}\\,\\,#1)',1],
 3619:     'int':              ['Macro','\\intop\\nolimits'],
 3620:     oint:               ['Macro','\\ointop\\nolimits'],
 3621:     doteq:              ['Macro','\\buildrel\\textstyle.\\over='],
 3622:     ldots:              ['Macro','\\mathinner{\\ldotp\\ldotp\\ldotp}'],
 3623:     cdots:              ['Macro','\\mathinner{\\cdotp\\cdotp\\cdotp}'],
 3624:     vdots:              ['Macro','\\mathinner{\\rlap{\\raise8pt{\\rule 0pt 6pt 0pt .}}\\rlap{\\raise4pt{.}}.}'],
 3625:     ddots:              ['Macro','\\mathinner{\\kern1mu\\raise7pt{\\rule 0pt 7pt 0pt .}\\kern2mu\\raise4pt{.}\\kern2mu\\raise1pt{.}\\kern1mu}'],
 3626:     joinrel:            ['Macro','\\mathrel{\\kern-4mu}'],
 3627:     relbar:             ['Macro','\\mathrel{\\smash-}'], // \smash, because - has the same height as +
 3628:     Relbar:             ['Macro','\\mathrel='],
 3629:     bowtie:             ['Macro','\\mathrel\\triangleright\\joinrel\\mathrel\\triangleleft'],
 3630:     models:             ['Macro','\\mathrel|\\joinrel='],
 3631:     mapsto:             ['Macro','\\mapstochar\\rightarrow'],
 3632:     rightleftharpoons:  ['Macro','\\vcenter{\\mathrel{\\rlap{\\raise3mu{\\rightharpoonup}}}\\leftharpoondown}'],
 3633:     hookrightarrow:     ['Macro','\\lhook\\joinrel\\rightarrow'],
 3634:     hookleftarrow:      ['Macro','\\leftarrow\\joinrel\\rhook'],
 3635:     Longrightarrow:     ['Macro','\\Relbar\\joinrel\\Rightarrow'],
 3636:     longrightarrow:     ['Macro','\\relbar\\joinrel\\rightarrow'],
 3637:     longleftarrow:      ['Macro','\\leftarrow\\joinrel\\relbar'],
 3638:     Longleftarrow:      ['Macro','\\Leftarrow\\joinrel\\Relbar'],
 3639:     longmapsto:         ['Macro','\\mapstochar\\char{cmsy10}{0}\\joinrel\\rightarrow'],
 3640:     longleftrightarrow: ['Macro','\\leftarrow\\joinrel\\rightarrow'],
 3641:     Longleftrightarrow: ['Macro','\\Leftarrow\\joinrel\\Rightarrow'],
 3642:     iff:                ['Macro','\\;\\Longleftrightarrow\\;'],
 3643:     mathrm:             ['Macro','{\\rm #1}',1],
 3644:     mathbf:             ['Macro','{\\bf #1}',1],
 3645:     mathbb:             ['Macro','{\\bf #1}',1],
 3646:     mathit:             ['Macro','{\\it #1}',1],
 3647: 
 3648:     TeX:                ['Macro','T\\kern-.1667em\\lower.5ex{E}\\kern-.125em X'],
 3649: 
 3650:     limits:       ['Limits',1],
 3651:     nolimits:     ['Limits',0],
 3652: 
 3653:     ',':          ['Spacer',1/6],
 3654:     ':':          ['Spacer',1/6],  // for LaTeX
 3655:     '>':          ['Spacer',2/9],
 3656:     ';':          ['Spacer',5/18],
 3657:     '!':          ['Spacer',-1/6],
 3658:     enspace:      ['Spacer',1/2],
 3659:     quad:         ['Spacer',1],
 3660:     qquad:        ['Spacer',2],
 3661:     thinspace:    ['Spacer',1/6],
 3662:     negthinspace: ['Spacer',-1/6],
 3663:     
 3664:     hskip:         'Hskip',
 3665:     kern:          'Hskip',
 3666:     rule:          ['Rule','black'],
 3667:     space:         ['Rule','blank'],
 3668:     
 3669:     big:        ['MakeBig','ord',0.85],
 3670:     Big:        ['MakeBig','ord',1.15],
 3671:     bigg:       ['MakeBig','ord',1.45],
 3672:     Bigg:       ['MakeBig','ord',1.75],
 3673:     bigl:       ['MakeBig','open',0.85],
 3674:     Bigl:       ['MakeBig','open',1.15],
 3675:     biggl:      ['MakeBig','open',1.45],
 3676:     Biggl:      ['MakeBig','open',1.75],
 3677:     bigr:       ['MakeBig','close',0.85],
 3678:     Bigr:       ['MakeBig','close',1.15],
 3679:     biggr:      ['MakeBig','close',1.45],
 3680:     Biggr:      ['MakeBig','close',1.75],
 3681:     bigm:       ['MakeBig','rel',0.85],
 3682:     Bigm:       ['MakeBig','rel',1.15],
 3683:     biggm:      ['MakeBig','rel',1.45],
 3684:     Biggm:      ['MakeBig','rel',1.75],
 3685:     
 3686:     mathord:    ['HandleAtom','ord'],
 3687:     mathop:     ['HandleAtom','op'],
 3688:     mathopen:   ['HandleAtom','open'],
 3689:     mathclose:  ['HandleAtom','close'],
 3690:     mathbin:    ['HandleAtom','bin'],
 3691:     mathrel:    ['HandleAtom','rel'],
 3692:     mathpunct:  ['HandleAtom','punct'],
 3693:     mathinner:  ['HandleAtom','inner'],
 3694:     
 3695:     mathchoice: 'MathChoice',
 3696:     buildrel:   'BuildRel',
 3697:     
 3698:     hbox:       'HBox',
 3699:     text:       'HBox',
 3700:     mbox:       'HBox',
 3701:     fbox:       'FBox',
 3702: 
 3703:     strut:      'Strut',
 3704:     mathstrut:  ['Macro','\\vphantom{(}'],
 3705:     phantom:    ['Phantom',1,1],
 3706:     vphantom:   ['Phantom',1,0],
 3707:     hphantom:   ['Phantom',0,1],
 3708:     smash:      'Smash',
 3709:     
 3710:     acute:      ['MathAccent', 0x7013],
 3711:     grave:      ['MathAccent', 0x7012],
 3712:     ddot:       ['MathAccent', 0x707F],
 3713:     tilde:      ['MathAccent', 0x707E],
 3714:     bar:        ['MathAccent', 0x7016],
 3715:     breve:      ['MathAccent', 0x7015],
 3716:     check:      ['MathAccent', 0x7014],
 3717:     hat:        ['MathAccent', 0x705E],
 3718:     vec:        ['MathAccent', 0x017E],
 3719:     dot:        ['MathAccent', 0x705F],
 3720:     widetilde:  ['MathAccent', 0x0365],
 3721:     widehat:    ['MathAccent', 0x0362],
 3722: 
 3723:     '_':        ['Replace','ord','_','normal',-.4,.1],
 3724:     ' ':        ['Replace','ord','&nbsp;','normal'],
 3725:     angle:      ['Replace','ord','&#x2220;','normal'],
 3726:         
 3727:     matrix:     'Matrix',
 3728:     array:      'Matrix',  // ### still need to do alignment options ###
 3729:     pmatrix:    ['Matrix','(',')','c'],
 3730:     cases:      ['Matrix','\\{','.',['l','l']],
 3731:     cr:         'HandleRow',
 3732:     '\\':       'HandleRow',
 3733:     
 3734:     //  LaTeX
 3735:     begin:      'Begin',
 3736:     end:        'End',
 3737:     tiny:       ['HandleSize',0],
 3738:     Tiny:       ['HandleSize',1],  // non-standard
 3739:     scriptsize: ['HandleSize',2],
 3740:     small:      ['HandleSize',3],
 3741:     normalsize: ['HandleSize',4],
 3742:     large:      ['HandleSize',5],
 3743:     Large:      ['HandleSize',6],
 3744:     LARGE:      ['HandleSize',7],
 3745:     huge:       ['HandleSize',8],
 3746:     Huge:       ['HandleSize',9],
 3747:     dots:       ['Macro','\\ldots'],
 3748: 
 3749:     //  Extensions to TeX
 3750:     color:      'Color',
 3751:     href:       'Href',
 3752:     'class':    'Class',
 3753:     style:      'Style',
 3754:     unicode:    'Unicode',
 3755: 
 3756:     //  debugging and test routines
 3757:     'char':     'Char',
 3758:     test:       'Test'
 3759:   },
 3760:   
 3761:   /*
 3762:    *  LaTeX environments
 3763:    */
 3764:   environments: {
 3765:     array:      'Array',
 3766:     matrix:     ['Array',null,null,'c'],
 3767:     pmatrix:    ['Array','(',')','c'],
 3768:     bmatrix:    ['Array','[',']','c'],
 3769:     Bmatrix:    ['Array','\\{','\\}','c'],
 3770:     vmatrix:    ['Array','\\vert','\\vert','c'],
 3771:     Vmatrix:    ['Array','\\Vert','\\Vert','c'],
 3772:     cases:      ['Array','\\{','.','ll'],
 3773:     eqnarray:   ['Array',null,null,'rcl',[5/18,5/18]]
 3774:   },
 3775: 
 3776:   /*
 3777:    *  The horizontally stretchable delimiters
 3778:    */
 3779:   leaders: {
 3780:     downbrace:  {left: 0x37A, lmid: 0x37D, rmid: 0x37C, right: 0x37B},
 3781:     upbrace:    {left: 0x37C, lmid: 0x37B, rmid: 0x37A, right: 0x37D},
 3782:     leftarrow:  {left: 0x220, rep: 0x200},
 3783:     rightarrow: {rep: 0x200, right: 0x221}
 3784:   },
 3785: 
 3786: 
 3787:   /***************************************************************************/
 3788: 
 3789:   /*
 3790:    *  Add special characters to list above.  (This makes it possible
 3791:    *  to define them in a variable that the user can change.)
 3792:    */
 3793:   AddSpecial: function (obj) {
 3794:     for (var id in obj) {
 3795:       jsMath.Parser.prototype.special[jsMath.Parser.prototype[id]] = obj[id];
 3796:     }
 3797:   },
 3798: 
 3799:   /*
 3800:    *  Throw an error
 3801:    */
 3802:   Error: function (s) {
 3803:    this.i = this.string.length;
 3804:     if (s.error) {this.error = s.error} else {
 3805:       if (!this.error) {this.error = s}
 3806:     }
 3807:   },
 3808: 
 3809:   /***************************************************************************/
 3810: 
 3811:   /*
 3812:    *  Check if the next character is a space
 3813:    */
 3814:   nextIsSpace: function () {
 3815:     return this.string.charAt(this.i) == ' ';
 3816:   },
 3817: 
 3818:   /*
 3819:    *  Parse a substring to get its mList, and return it.
 3820:    *  Check that no errors occured
 3821:    */
 3822:   Process: function (arg) {
 3823:     var data = this.mlist.data;
 3824:     arg = jsMath.Parse(arg,data.font,data.size,data.style);
 3825:       if (arg.error) {this.Error(arg); return}
 3826:     if (arg.mlist.Length() == 0) {return null}
 3827:     if (arg.mlist.Length() == 1) {
 3828:       var atom = arg.mlist.Last();
 3829:       if (atom.atom && atom.type == 'ord' && atom.nuc &&
 3830:          !atom.sub && !atom.sup && (atom.nuc.type == 'text' || atom.nuc.type == 'TeX'))
 3831:              {return atom.nuc}
 3832:     }
 3833:     return {type: 'mlist', mlist: arg.mlist};
 3834:   },
 3835: 
 3836:   /*
 3837:    *  Get and return a control-sequence name from the TeX string
 3838:    */
 3839:   GetCommand: function () {
 3840:     var letter = /^([a-z]+|.) ?/i;
 3841:     var cmd = letter.exec(this.string.slice(this.i));
 3842:     if (cmd) {this.i += cmd[1].length; return cmd[1]}
 3843:     this.Error("Missing control sequnece name at end of string or argument"); return
 3844:   },
 3845: 
 3846:   /*
 3847:    *  Get and return a TeX argument (either a single character or control sequence,
 3848:    *  or the contents of the next set of braces).
 3849:    */
 3850:   GetArgument: function (name,noneOK) {
 3851:     while (this.nextIsSpace()) {this.i++}
 3852:     if (this.i >= this.string.length) {if (!noneOK) this.Error("Missing argument for "+name); return}
 3853:     if (this.string.charAt(this.i) == this.close) {if (!noneOK) this.Error("Extra close brace"); return}
 3854:     if (this.string.charAt(this.i) == this.cmd) {this.i++; return this.cmd+this.GetCommand()}
 3855:     if (this.string.charAt(this.i) != this.open) {return this.string.charAt(this.i++)}
 3856:     var j = ++this.i; var pcount = 1; var c = '';
 3857:     while (this.i < this.string.length) {
 3858:       c = this.string.charAt(this.i++);
 3859:       if (c == this.cmd) {this.i++}
 3860:       else if (c == this.open) {pcount++}
 3861:       else if (c == this.close) {
 3862:         if (pcount == 0) {this.Error("Extra close brace"); return}
 3863:         if (--pcount == 0) {return this.string.slice(j,this.i-1)}
 3864:       }
 3865:     }
 3866:     this.Error("Missing close brace");
 3867:   },
 3868: 
 3869:   /*
 3870:    *  Get an argument and process it into an mList
 3871:    */
 3872:   ProcessArg: function (name) {
 3873:     var arg = this.GetArgument(name); if (this.error) return;
 3874:     return this.Process(arg);
 3875:   },
 3876: 
 3877:   /*
 3878:    *  Get the name of a delimiter (check it in the delimiter list).
 3879:    */
 3880:   GetDelimiter: function (name) {
 3881:     while (this.nextIsSpace()) {this.i++}
 3882:     var c = this.string.charAt(this.i);
 3883:     if (this.i < this.string.length) {
 3884:       this.i++;
 3885:       if (c == this.cmd) {c = '\\'+this.GetCommand(name); if (this.error) return}
 3886:       if (this.delimiter[c] != null) {return this.delimiter[c]}
 3887:     }
 3888:     this.Error("Missing or unrecognized delimiter for "+name);
 3889:   },
 3890:   
 3891:   /*
 3892:    *  Get a dimension (including its units).
 3893:    *  Convert the dimen to em's, except for mu's, which must be
 3894:    *  converted when typeset.
 3895:    */
 3896:   GetDimen: function (name,nomu) {
 3897:     var rest = this.string.slice(this.i);
 3898:     var match = rest.match(/^\s*([-+]?(\.\d+|\d+(\.\d*)?))(pt|em|ex|mu|px)/);
 3899:     if (!match) {this.Error("Missing dimension or its units for "+name); return}
 3900:     this.i += match[0].length;
 3901:     if (this.nextIsSpace()) {this.i++}
 3902:     var d = match[1]-0;
 3903:     if (match[4] == 'px') {d /= jsMath.em}
 3904:     else if (match[4] == 'pt') {d /= 10}
 3905:     else if (match[4] == 'ex') {d *= jsMath.TeX.x_height}
 3906:     else if (match[4] == 'mu') {if (nomu) {d = d/18} else {d = [d,'mu']}}
 3907:     return d;
 3908:   },
 3909: 
 3910:   /*
 3911:    *  Get the next non-space character
 3912:    */
 3913:   GetNext: function () {
 3914:     while (this.nextIsSpace()) {this.i++}
 3915:     return this.string.charAt(this.i);
 3916:   },
 3917:   
 3918:   /*
 3919:    *  Get an optional LaTeX argument in brackets
 3920:    */
 3921:   GetBrackets: function (name) {
 3922:     var c = this.GetNext(); if (c != '[') return '';
 3923:     var start = ++this.i; var pcount = 0;
 3924:     while (this.i < this.string.length) {
 3925:       var c = this.string.charAt(this.i++);
 3926:       if (c == '{') {pcount++}
 3927:       else if (c == '}') {
 3928:         if (pcount == 0)
 3929:           {this.Error("Extra close brace while looking for ']'"); return}
 3930:         pcount --;
 3931:       } else if (c == this.cmd) {
 3932:         this.i++;
 3933:       } else if (c == ']') {
 3934:         if (pcount == 0) {return this.string.slice(start,this.i-1)}
 3935:       }
 3936:     }
 3937:     this.Error("Couldn't find closing ']' for argument to "+this.cmd+name);
 3938:   },
 3939:   
 3940:   /*
 3941:    *  Get everything up to the given control sequence name (token)
 3942:    */
 3943:   GetUpto: function (name,token) {
 3944:     while (this.nextIsSpace()) {this.i++}
 3945:     var start = this.i; var pcount = 0;
 3946:     while (this.i < this.string.length) {
 3947:       var c = this.string.charAt(this.i++);
 3948:       if (c == '{') {pcount++}
 3949:       else if (c == '}') {
 3950:         if (pcount == 0)
 3951:           {this.Error("Extra close brace while looking for "+this.cmd+token); return}
 3952:         pcount --;
 3953:       } else if (c == this.cmd) {
 3954:         // really need separate counter for begin/end
 3955:         // and it should really be a stack (new pcount for each begin)
 3956:         if (this.string.slice(this.i,this.i+5) == "begin") {pcount++; this.i+=4}
 3957:         else if (this.string.slice(this.i,this.i+3) == "end") {
 3958:           if (pcount > 0) {pcount--; this.i += 2}
 3959:         }
 3960:         if (pcount == 0)  {
 3961:           if (this.string.slice(this.i,this.i+token.length) == token) {
 3962:             c = this.string.charAt(this.i+token.length);
 3963:             if (c.match(/[^a-z]/i) || !token.match(/[a-z]/i)) {
 3964:               var arg = this.string.slice(start,this.i-1);
 3965:               this.i += token.length;
 3966:               return arg;
 3967:             }
 3968:           }
 3969:         }
 3970:         this.i++;
 3971:       }
 3972:     }
 3973:     this.Error("Couldn't find "+this.cmd+token+" for "+name);
 3974:   },
 3975: 
 3976:   /*
 3977:    *  Get a parameter delimited by a control sequence, and
 3978:    *  process it to get its mlist
 3979:    */
 3980:   ProcessUpto: function (name,token) {
 3981:     var arg = this.GetUpto(name,token); if (this.error) return;
 3982:     return this.Process(arg);
 3983:   },
 3984: 
 3985:   /*
 3986:    *  Get everything up to \end{env}
 3987:    */
 3988:   GetEnd: function (env) {
 3989:     var body = ''; var name = '';
 3990:     while (name != env) {
 3991:       body += this.GetUpto('begin{'+env+'}','end'); if (this.error) return;
 3992:       name = this.GetArgument(this.cmd+'end'); if (this.error) return;
 3993:     }
 3994:     return body;
 3995:   },
 3996:   
 3997: 
 3998:   /***************************************************************************/
 3999: 
 4000: 
 4001:   /*
 4002:    *  Ignore spaces
 4003:    */
 4004:   Space: function () {},
 4005: 
 4006:   /*
 4007:    *  Collect together any primes and convert them to a superscript
 4008:    */
 4009:   Prime: function (c) {
 4010:     var base = this.mlist.Last();
 4011:     if (base == null || (!base.atom && base.type != 'box' && base.type != 'frac'))
 4012:        {base = this.mlist.Add(jsMath.mItem.Atom('ord',null))}
 4013:     if (base.sup) {this.Error("Prime causes double exponent: use braces to clarify"); return}
 4014:     var sup = '';
 4015:     while (c == "'") {sup += '\\prime'; c = this.GetNext(); if (c == "'") {this.i++}}
 4016:     base.sup = this.Process(sup);
 4017:   },
 4018: 
 4019:   /*
 4020:    *  Raise or lower its parameter by a given amount
 4021:    *  @@@ Note that this is different from TeX, which requires an \hbox @@@
 4022:    *  ### make this work with mu's ###
 4023:    */
 4024:   RaiseLower: function (name) {
 4025:     var h = this.GetDimen(this.cmd+name,1); if (this.error) return;
 4026:     var box = this.ProcessArg(this.cmd+name); if (this.error) return;
 4027:     if (name == 'lower') {h = -h}
 4028:     this.mlist.Add(new jsMath.mItem('raise',{nuc: box, raise: h}));
 4029:   },
 4030:   
 4031:   /*
 4032:    *  Shift an expression to the right or left
 4033:    *  @@@ Note that this is different from TeX, which requires a \vbox @@@
 4034:    *  ### make this work with mu's ###
 4035:    */
 4036:   MoveLeftRight: function (name) {
 4037:     var x = this.GetDimen(this.cmd+name,1); if (this.error) return;
 4038:     var box = this.ProcessArg(this.cmd+name); if (this.error) return;
 4039:     if (name == 'moveleft') {x = -x}
 4040:     this.mlist.Add(jsMath.mItem.Space(x));
 4041:     this.mlist.Add(jsMath.mItem.Atom('ord',box));
 4042:     this.mlist.Add(jsMath.mItem.Space(-x));
 4043:   },
 4044: 
 4045:   /*
 4046:    *  Show the argument in a particular color
 4047:    *  ### doesn't affect horizontal rules; can we fix that? ###
 4048:    */
 4049:   Color: function (name) {
 4050:     var color = this.GetArgument(this.cmd+name); if (this.error) return;
 4051:     // check that it looks like a color?
 4052:     this.AddHTML(name,['<SPAN STYLE="color: '+color+'">','</SPAN>']);
 4053:   },
 4054:   
 4055:   /*
 4056:    *  Make the argument be a link
 4057:    */
 4058:   Href: function (name) {
 4059:     var href = this.GetArgument(this.cmd+name); if (this.error) return;
 4060:     this.AddHTML(name,['<A CLASS="mathlink" HREF="'+href+'">','</A>']);
 4061:   },
 4062:   
 4063:   /*
 4064:    *  Apply a CSS class to the argument
 4065:    */
 4066:   Class: function (name) {
 4067:     var clss = this.GetArgument(this.cmd+name); if (this.error) return;
 4068:     this.AddHTML(name,['<SPAN CLASS="'+clss+'">','</SPAN>']);
 4069:   },
 4070:   
 4071:   /*
 4072:    *  Apply a CSS style to the argument
 4073:    */
 4074:   Style: function (name) {
 4075:     var style = this.GetArgument(this.cmd+name); if (this.error) return;
 4076:     this.AddHTML(name,['<SPAN STYLE="'+style+'">','</SPAN>']);
 4077:   },
 4078:   
 4079:   /*
 4080:    *  Insert some raw HTML around the argument (this will not affect
 4081:    *  the spacing or other TeX features)
 4082:    */
 4083:   AddHTML: function (name,params) {
 4084:     var data = this.mlist.data;
 4085:     var arg = this.GetArgument(this.cmd+name); if (this.error) return;
 4086:     arg = jsMath.Parse(arg,data.font,data.size,data.style);
 4087:       if (arg.error) {this.Error(arg); return}
 4088:     this.mlist.Add(jsMath.mItem.HTML(params[0]));
 4089:     for (var i = 0; i < arg.mlist.Length(); i++) {this.mlist.Add(arg.mlist.Get(i))}
 4090:     this.mlist.Add(jsMath.mItem.HTML(params[1]));
 4091:   },
 4092:   
 4093:   /*
 4094:    *  Insert a unicode reference as an Ord atom.  Its argument should
 4095:    *  be the unicode code point, e.g. \unicode{8211}, or \unicode{x203F}.
 4096:    *  You can also specify the height and depth in ems, e.g.,
 4097:    *  \unicode{8211,.6,-.3}
 4098:    */
 4099:   Unicode: function (name) {
 4100:     var arg = this.GetArgument(this.cmd+name); if (this.error) return;
 4101:     arg = arg.split(','); arg[0] = '&#'+arg[0]+';';
 4102:     if (!arg[1]) {arg[1] = 'normal'}
 4103:     this.mlist.Add(jsMath.mItem.TextAtom('ord',arg[0],arg[1],arg[2],arg[3]));
 4104:   },
 4105:   
 4106:   /*
 4107:    *  Implements \frac{num}{den}
 4108:    */
 4109:   Frac: function (name) {
 4110:     var num = this.ProcessArg(this.cmd+name); if (this.error) return;
 4111:     var den = this.ProcessArg(this.cmd+name); if (this.error) return;
 4112:     this.mlist.Add(jsMath.mItem.Fraction('over',num,den));
 4113:   },
 4114:   
 4115:   /*
 4116:    *  Implements \sqrt[n]{...}
 4117:    */
 4118:   Sqrt: function (name) {
 4119:     var n = this.GetBrackets(this.cmd+name); if (this.error) return;
 4120:     var arg = this.ProcessArg(this.cmd+name); if (this.error) return;
 4121:     box = jsMath.mItem.Atom('radical',arg);
 4122:     if (this.n != '') {box.root = this.Process(n); if (this.error) return}
 4123:     this.mlist.Add(box);
 4124:   },
 4125: 
 4126:   /*
 4127:    *  Implements \root...\of{...}
 4128:    */
 4129:   Root: function (name) {
 4130:     var n = this.ProcessUpto(this.cmd+name,'of'); if (this.error) return;
 4131:     var arg = this.ProcessArg(this.cmd+name); if (this.error) return;
 4132:     box = jsMath.mItem.Atom('radical',arg);
 4133:     box.root = n; this.mlist.Add(box);
 4134:   },
 4135:   
 4136: 
 4137:   /*
 4138:    *  Implements \mathchoice{}{}{}{}
 4139:    */
 4140:   MathChoice: function (name) {
 4141:     var D  = this.ProcessArg(this.cmd+name); if (this.error) return;
 4142:     var T  = this.ProcessArg(this.cmd+name); if (this.error) return;
 4143:     var S  = this.ProcessArg(this.cmd+name); if (this.error) return;
 4144:     var SS = this.ProcessArg(this.cmd+name); if (this.error) return;
 4145:     var box = new jsMath.mItem('choice',{D: D, T: T, S: S, SS: SS});
 4146:     this.mlist.Add(new jsMath.mItem('choice',{D: D, T: T, S: S, SS: SS}));
 4147:   },
 4148:   
 4149:   /*
 4150:    *  Implements \buildrel...\over{...}
 4151:    */
 4152:   BuildRel: function (name) {
 4153:     var top = this.ProcessUpto(this.cmd+name,'over'); if (this.error) return;
 4154:     var bot = this.ProcessArg(this.cmd+name); if (this.error) return;
 4155:     var op = jsMath.mItem.Atom('op',bot);
 4156:     op.limits = 1; op.sup = top;
 4157:     this.mlist.Add(op);
 4158:   },
 4159: 
 4160:   /*
 4161:    *  Create a delimiter of the type and size specified in the parameters
 4162:    */
 4163:   MakeBig: function (name,data) {
 4164:     var type = data[0]; var h = data[1] * jsMath.p_height;
 4165:     var delim = this.GetDelimiter(this.cmd+name); if (this.error) return;
 4166:     this.mlist.Add(jsMath.mItem.Atom(type,jsMath.Box.Delimiter(h,delim,'T')));
 4167:   },
 4168:   
 4169:   /*
 4170:    *  Insert the specified character in the given font.
 4171:    */
 4172:   Char: function (name) {
 4173:     var font = this.GetArgument(this.cmd+name); if (this.error) return;
 4174:     var n = this.GetArgument(this.cmd+name); if (this.error) return;
 4175:     this.mlist.Add(jsMath.mItem.Typeset(jsMath.Box.TeX(n-0,font,'T',this.mlist.data.size)));
 4176:     return;
 4177:   },
 4178:   
 4179:   /*
 4180:    *  Create an array or matrix.
 4181:    */
 4182:   Matrix: function (name,delim) {
 4183:     var data = this.mlist.data;
 4184:     var arg = this.GetArgument(this.cmd+name); if (this.error) return;
 4185:     var parse = new jsMath.Parser(arg+'\\\\',null,data.size);
 4186:     parse.matrix = name; parse.row = []; parse.table = [];
 4187:     parse.Parse(); if (parse.error) {this.Error(parse); return}
 4188:     parse.HandleRow(name,1);  // be sure the last row is recorded
 4189:     var box = jsMath.Box.Layout(data.size,parse.table,delim[2]);
 4190:     // Add parentheses, if needed
 4191:     if (delim[0] && delim[1]) {
 4192:       var left  = jsMath.Box.Delimiter(box.h+box.d,this.delimiter[delim[0]],'T');
 4193:       var right = jsMath.Box.Delimiter(box.h+box.d,this.delimiter[delim[1]],'T');
 4194:       box = jsMath.Box.SetList([left,box,right],data.style,data.size);
 4195:     }
 4196:     this.mlist.Add(jsMath.mItem.Atom((delim[0]? 'inner': 'ord'),box));
 4197:   },
 4198:   
 4199:   /*
 4200:    *  When we see an '&', try to add a matrix entry to the row data.
 4201:    *  (Use all the data in the current mList, and then clear it)
 4202:    */
 4203:   HandleEntry: function (name) {
 4204:     if (!this.matrix) 
 4205:       {this.Error(name+" can only appear in a matrix or array"); return}
 4206:     if (this.mlist.data.openI != null) {
 4207:       var open = this.mlist.Get(this.mlist.data.openI);
 4208:       if (open.left) {this.Error("Missing "+this.cmd+"right")}
 4209:         else {this.Error("Missing close brace")}
 4210:     }
 4211:     if (this.mlist.data.overI != null) {this.mlist.Over()}
 4212:     var data = this.mlist.data;
 4213:     this.mlist.Atomize('T',data.size); var box = this.mlist.Typeset('T',data.size);
 4214:     this.row[this.row.length] = box;
 4215:     this.mlist = new jsMath.mList(null,null,data.size); 
 4216:   },
 4217:   
 4218:   /*
 4219:    *  When we see a \cr or \\, try to add a row to the table
 4220:    */
 4221:   HandleRow: function (name,last) {
 4222:     if (!this.matrix)
 4223:       {this.Error(this.cmd+name+" can only appear in a matrix or array"); return}
 4224:     this.HandleEntry(name);
 4225:     if (!last || this.row.length > 1 || this.row[0].format != 'null')
 4226:       {this.table[this.table.length] = this.row}
 4227:     this.row = [];
 4228:   },
 4229:   
 4230:   /*
 4231:    *  LaTeX array environment
 4232:    */
 4233:   Array: function (name,delim) {
 4234:     var columns = delim[2]; var cspacing = delim[3];
 4235:     if (!columns) {
 4236:       columns = this.GetArgument(this.cmd+'begin{'+name+'}');
 4237:       if (this.error) return;
 4238:     }
 4239:     columns = columns.replace(/[^clr]/g,'');
 4240:     columns = columns.split('');
 4241:     var data = this.mlist.data;
 4242:     var arg = this.GetEnd(name); if (this.error) return;
 4243:     var parse = new jsMath.Parser(arg+'\\\\',null,data.size);
 4244:     parse.matrix = name; parse.row = []; parse.table = [];
 4245:     parse.Parse(); if (parse.error) {this.Error(parse); return}
 4246:     parse.HandleRow(name,1);  // be sure the last row is recorded
 4247:     var box = jsMath.Box.Layout(data.size,parse.table,columns,cspacing);
 4248:     // Add parentheses, if needed
 4249:     if (delim[0] && delim[1]) {
 4250:       var left  = jsMath.Box.Delimiter(box.h+box.d,this.delimiter[delim[0]],'T');
 4251:       var right = jsMath.Box.Delimiter(box.h+box.d,this.delimiter[delim[1]],'T');
 4252:       box = jsMath.Box.SetList([left,box,right],data.style,data.size);
 4253:     }
 4254:     this.mlist.Add(jsMath.mItem.Atom((delim[0]? 'inner': 'ord'),box));
 4255:   },
 4256:   
 4257:   /*
 4258:    *  LaTeX \begin{env}
 4259:    */
 4260:   Begin: function (name) {
 4261:     var env = this.GetArgument(this.cmd+name); if (this.error) return;
 4262:     if (env.match(/[^a-z*]/i)) {this.Error('Invalid environment name "'+env+'"'); return}
 4263:     if (!this.environments[env]) {this.Error('Unknown environment "'+env+'"'); return}
 4264:     var cmd = this.environments[env];
 4265:     if (typeof(cmd) == "string") {cmd = [cmd]}
 4266:     this[cmd[0]](env,cmd.slice(1));
 4267:   },
 4268:   
 4269:   /*
 4270:    *  LaTeX \end{env}
 4271:    */
 4272:   End: function (name) {
 4273:     var env = this.GetArgument(this.cmd+name); if (this.error) return;
 4274:     this.Error(this.cmd+name+'{'+env+'} without matching '+this.cmd+'begin');
 4275:   },
 4276: 
 4277:   /*
 4278:    *  Debugging routine to test stretchable delimiters
 4279:    */
 4280:   Test: function () {
 4281:     var delim = this.GetDelimiter(this.cmd+'test'); if (this.error) return;
 4282:     var H = this.GetArgument(this.cmd+'test'); if (this.error) return;
 4283:     this.mlist.Add(jsMath.mItem.Typeset(jsMath.Box.Delimiter(H,delim,'T')));
 4284:     return;
 4285: 
 4286:     var leader = this.GetArgument(this.cmd+'test'); if (this.error) return;
 4287:     var W = this.GetArgument(this.cmd+'test'); if (this.error) return;
 4288:     if (this.leaders[leader] == null) 
 4289:       {this.Error('Unknown leaders "'+leader+'"'); return}
 4290:     this.mlist.Add(jsMath.mItem.Typeset(jsMath.Box.Leaders(W,this.leaders[leader])));
 4291:     return;
 4292:   },
 4293:   
 4294:   /*
 4295:    *  Add a fixed amount of horizontal space
 4296:    */
 4297:   Spacer: function (name,w) {
 4298:     this.mlist.Add(jsMath.mItem.Space(w-0));
 4299:   },
 4300:   
 4301:   /*
 4302:    *  Add horizontal space given by the argument
 4303:    */
 4304:   Hskip: function (name) {
 4305:     var w = this.GetDimen(this.cmd+name); if (this.error) return;
 4306:     this.mlist.Add(jsMath.mItem.Space(w));
 4307:   },
 4308: 
 4309:   /*
 4310:    *  Typeset the argument as plain text rather than math.
 4311:    */
 4312:   HBox: function (name) {
 4313:     var text = this.GetArgument(this.cmd+name); if (this.error) return;
 4314:     var box = jsMath.Box.InternalMath(text,this.mlist.data.size);
 4315:     this.mlist.Add(jsMath.mItem.Typeset(box));
 4316:   },
 4317:   
 4318:   /*
 4319:    *  Implement \fbox{...}
 4320:    */
 4321:   FBox: function (name) {
 4322:     var text = this.GetArgument(this.cmd+name); if (this.error) return;
 4323:     var arg = jsMath.Box.InternalMath(text,this.mlist.data.size);
 4324:     var f = 0.25 * jsMath.sizes[this.mlist.data.size]/100;
 4325:     var box = jsMath.Box.Set(arg,this.mlist.data.style,this.mlist.data.size,1).Remeasured();
 4326:     var frame = jsMath.HTML.Frame(-f,-box.d-f,box.w+2*f,box.h+box.d+2*f);
 4327:     box.html = frame + box.html + jsMath.HTML.Spacer(f);
 4328:     box.h += f; box.d += f; box.w +=2*f; box.x += f;
 4329:     box.bh = Math.max(box.bh,box.h); box.bd = Math.max(box.bd,box.d);
 4330:     this.mlist.Add(jsMath.mItem.Atom('ord',box));
 4331:   },
 4332:   
 4333:   /*
 4334:    *  Insert a rule of a particular width, height and depth
 4335:    *  This replaces \hrule and \vrule
 4336:    *  @@@ not a standard TeX command, and all three parameters must be given @@@
 4337:    */
 4338:   Rule: function (name,gif) {
 4339:     var w = this.GetDimen(this.cmd+name,1); if (this.error) return;
 4340:     var h = this.GetDimen(this.cmd+name,1); if (this.error) return;
 4341:     var d = this.GetDimen(this.cmd+name,1); if (this.error) return;
 4342:     h += d; 
 4343:     if (h != 0) {h = Math.max(1.05/jsMath.em,h)}
 4344:     if (h == 0 || w == 0) {gif = "blank"}
 4345:     var html = '<IMG SRC="'+jsMath[gif]+'" STYLE="height: '+jsMath.HTML.Em(h)+'; '
 4346:                 + 'width: '+jsMath.HTML.Em(w)+'">';
 4347:     if (d) {
 4348:       html = '<SPAN STYLE="vertical-align:'+jsMath.HTML.Em(-d)+'">'
 4349:            +  html + '</SPAN>';
 4350:     }
 4351:     this.mlist.Add(jsMath.mItem.Typeset(new jsMath.Box('html',html,w,h-d,d)));
 4352:   },
 4353:   
 4354:   /*
 4355:    *  Inserts an empty box of a specific height and depth
 4356:    */
 4357:   Strut: function () {
 4358:     var size = this.mlist.data.size;
 4359:     var box = jsMath.Box.Text('','normal','T',size).Styled();
 4360:     box.bh = box.bd = 0; box.h = .8; box.d = .3; box.w = 0;
 4361:     this.mlist.Add(jsMath.mItem.Typeset(box));
 4362:   },
 4363:   
 4364:   /*
 4365:    *  Handles \phantom, \vphantom and \hphantom
 4366:    */
 4367:   Phantom: function (name,data) {
 4368:     var arg = this.ProcessArg(this.cmd+name); if (this.error) return;
 4369:     this.mlist.Add(new jsMath.mItem('phantom',{phantom: arg, v: data[0], h: data[1]}));
 4370:   },
 4371:   
 4372:   /*
 4373:    *  Implements \smash
 4374:    */
 4375:   Smash: function (name,data) {
 4376:     var arg = this.ProcessArg(this.cmd+name); if (this.error) return;
 4377:     this.mlist.Add(new jsMath.mItem('smash',{smash: arg}));
 4378:   },
 4379:   
 4380:   /*
 4381:    *  Puts an accent on the following argument
 4382:    */
 4383:   MathAccent: function (name,accent) {
 4384:     var c = this.ProcessArg(this.cmd+name); if (this.error) return;
 4385:     var atom = jsMath.mItem.Atom('accent',c); atom.accent = accent[0];
 4386:     this.mlist.Add(atom);
 4387:   },
 4388: 
 4389:   /*
 4390:    *  Handles functions and operators like sin, cos, sum, etc.
 4391:    */
 4392:   NamedOp: function (name,data) {
 4393:     var a = (name.match(/[^acegm-su-z]/)) ? 1: 0;
 4394:     var d = (name.match(/[gjpqy]/)) ? 1: 0;
 4395:     if (data[1]) {name = data[1]}
 4396:     var box = jsMath.mItem.TextAtom('op',name,'cmr10',a,d);
 4397:     if (data[0] != null) {box.limits = data[0]}
 4398:     this.mlist.Add(box);
 4399:   },
 4400: 
 4401:   /*
 4402:    *  Implements \limits
 4403:    */
 4404:   Limits: function (name,data) {
 4405:     var atom = this.mlist.Last();
 4406:     if (!atom || atom.type != 'op') 
 4407:       {this.Error(this.cmd+name+" is allowed only on operators"); return}
 4408:     atom.limits = data[0];
 4409:   },
 4410: 
 4411:   /*
 4412:    *  Implements macros like those created by \def.  The named control
 4413:    *  sequence is replaced by the string given as the first data value.
 4414:    *  If there is a second data value, this specifies how many arguments
 4415:    *  the macro uses, and in this case, those arguments are substituted
 4416:    *  for #1, #2, etc. within the replacement string.
 4417:    *  
 4418:    *  See the jsMath.Macro() command below for more details.
 4419:    */
 4420:   Macro: function (name,data) {
 4421:     var text = data[0]
 4422:     if (data[1]) {
 4423:       var args = [];
 4424:       for (var i = 0; i < data[1]; i++) 
 4425:         {args[args.length] = this.GetArgument(this.cmd+name); if (this.error) return}
 4426:       text = ''; var c; var i = 0;
 4427:       while (i < data[0].length) {
 4428:         c = data[0].charAt(i++);
 4429:         if (c == '\\') {text += c + data[0].charAt(i++)}
 4430:         else if (c == '#') {
 4431:           c = data[0].charAt(i++);
 4432:           if (c == "#") {text += c} else {
 4433:             if (!c.match(/[1-9]/) || c > args.length)
 4434:               {this.Error("Illegal macro argument reference"); return}
 4435:             text += args[c-1];
 4436:           }
 4437:         } else {text += c}
 4438:       }
 4439:     }
 4440:     this.string = text + this.string.slice(this.i);
 4441:     this.i = 0;
 4442:   },
 4443:   
 4444:   /*
 4445:    *  Replace the control sequence with the given text
 4446:    */
 4447:   Replace: function (name,data) {
 4448:     this.mlist.Add(jsMath.mItem.TextAtom(data[0],data[1],data[2],data[3]));
 4449:   },
 4450: 
 4451:   /*
 4452:    *  Implements \overbrace, \underbrace, etc.
 4453:    */
 4454:   HandleLeaders: function (name,data) {
 4455:     var box = this.ProcessArg(this.cmd+name); if (this.error) return;
 4456:     box = jsMath.Box.Set(box,'D',this.mlist.data.size).Remeasured();
 4457:     var leader = jsMath.Box.Leaders(box.w,this.leaders[data[0]]);
 4458:     if (data[2]) {leader.y = -leader.h - box.d} else {leader.y = box.h + leader.d}
 4459:     leader.x = -(leader.w + box.w)/2;
 4460:     box = jsMath.mItem.Atom(data[1]? 'op': 'inner',
 4461:       jsMath.Box.SetList([box,leader],'T',this.mlist.data.size));
 4462:     box.limits = (data[1]? 1: 0);
 4463:     this.mlist.Add(box);
 4464:   },
 4465:   
 4466:   /*
 4467:    *  Implements \llap, \rlap, etc.
 4468:    */
 4469:   HandleLap: function (name) {
 4470:     var box = this.ProcessArg(); if (this.error) return;
 4471:     box = this.mlist.Add(new jsMath.mItem('lap',{nuc: box, lap: name}));
 4472:   },
 4473: 
 4474:   /*
 4475:    *  Adds the argument as a specific type of atom (for commands like
 4476:    *  \overline, etc.)
 4477:    */
 4478:   HandleAtom: function (name,data) {
 4479:     var arg = this.ProcessArg(this.cmd+name); if (this.error) return;
 4480:     this.mlist.Add(jsMath.mItem.Atom(data,arg));
 4481:   },
 4482: 
 4483: 
 4484:   /*
 4485:    *  Process the character associated with a specific \mathcharcode
 4486:    */
 4487:   HandleMathCode: function (name,code) {
 4488:     var type = (code & 0xF000) >> 12;
 4489:     var font = (code & 0x0F00) >> 8;
 4490:     var code = code & 0x00FF;
 4491:     this.HandleTeXchar(type,font,code);
 4492:   },
 4493:   
 4494:   /*
 4495:    *  Add a specific character from a TeX font (use the current
 4496:    *  font if the type is 7 (variable) or the font is not specified)
 4497:    */
 4498:   HandleTeXchar: function (type,font,code) {
 4499:     if (type == 7 && this.mlist.data.font != null) {font = this.mlist.data.font}
 4500:     font = jsMath.TeX.fam[font];
 4501:     this.mlist.Add(jsMath.mItem.TeXAtom(jsMath.TeX.atom[type],code,font));
 4502:   },
 4503: 
 4504:   /*
 4505:    *  Add a TeX variable character or number
 4506:    */
 4507:   HandleVariable: function (c) {this.HandleTeXchar(7,1,c.charCodeAt(0))},
 4508:   HandleNumber: function (c) {this.HandleTeXchar(7,0,c.charCodeAt(0))},
 4509: 
 4510:   /*
 4511:    *  For unmapped characters, just add them in as normal
 4512:    *  (non-TeX) characters
 4513:    */
 4514:   HandleOther: function (c) {
 4515:     this.mlist.Add(jsMath.mItem.TextAtom('ord',c,'normal'));
 4516:   },
 4517:   
 4518:   /*
 4519:    *  Ignore comments in TeX data
 4520:    *  ### Some browsers remove the newlines, so this might cause
 4521:    *      extra stuff to be ignored; look into this ###
 4522:    */
 4523:   HandleComment: function () {
 4524:     var c;
 4525:     while (this.i < this.string.length) {
 4526:       c = this.string.charAt(this.i++);
 4527:       if (c == "\r" || c == "\n") return;
 4528:     }
 4529:   },
 4530: 
 4531:   /*
 4532:    *  Add a style change (e.g., \displaystyle, etc)
 4533:    */
 4534:   HandleStyle: function (name,style) {
 4535:     this.mlist.data.style = style[0];
 4536:     this.mlist.Add(new jsMath.mItem('style',{style: style[0]}));
 4537:   },
 4538:   
 4539:   /*
 4540:    *  Implements \small, \large, etc.
 4541:    */
 4542:   HandleSize: function (name,size) {
 4543:     this.mlist.data.size = size[0];
 4544:     this.mlist.Add(new jsMath.mItem('size',{size: size[0]}));
 4545:   },
 4546: 
 4547:   /*
 4548:    *  Set the current font (e.g., \rm, etc)
 4549:    */
 4550:   HandleFont: function (name,font) {
 4551:     this.mlist.data.font = font[0];
 4552:   },
 4553: 
 4554:   /*
 4555:    *  Look for and process a control sequence
 4556:    */
 4557:   HandleCS: function () {
 4558:     var cmd = this.GetCommand(); if (this.error) return;
 4559:     if (this.macros[cmd]) {
 4560:       var macro = this.macros[cmd];
 4561:       if (typeof(macro) == "string") {macro = [macro]}
 4562:       this[macro[0]](cmd,macro.slice(1)); return;
 4563:     }
 4564:     if (this.mathchardef[cmd]) {
 4565:       this.HandleMathCode(cmd,this.mathchardef[cmd]);
 4566:       return;
 4567:     }
 4568:     if (this.delimiter[this.cmd+cmd]) {
 4569:       this.HandleMathCode(cmd,this.delimiter[this.cmd+cmd]>>12)
 4570:       return;
 4571:     }
 4572:     this.Error("Unknown control sequence '"+this.cmd+cmd+"'");
 4573:   },
 4574: 
 4575:   /*
 4576:    *  Process open and close braces
 4577:    */
 4578:   HandleOpen: function () {this.mlist.Open()},
 4579:   HandleClose: function () {
 4580:     if (this.mlist.data.openI == null) {this.Error("Extra close brace"); return}
 4581:     var open = this.mlist.Get(this.mlist.data.openI);
 4582:     if (!open || open.left == null) {this.mlist.Close()}
 4583:       else {this.Error("Extra close brace or missing "+this.cmd+"right"); return}
 4584:   },
 4585: 
 4586:   /*
 4587:    *  Implements \left
 4588:    */
 4589:   HandleLeft: function (name) {
 4590:     var left = this.GetDelimiter(this.cmd+name); if (this.error) return;
 4591:     this.mlist.Open(left);
 4592:   },
 4593: 
 4594:   /*
 4595:    *  Implements \right
 4596:    */
 4597:   HandleRight: function (name) {
 4598:     var right = this.GetDelimiter(this.cmd+name); if (this.error) return;
 4599:     var open = this.mlist.Get(this.mlist.data.openI);
 4600:     if (open && open.left != null) {this.mlist.Close(right)}
 4601:       else {this.Error("Extra open brace or missing "+this.cmd+"left");}
 4602:   },
 4603: 
 4604:   /*
 4605:    *  Implements generalized fractions (\over, \above, etc.)
 4606:    */
 4607:   HandleOver: function (name,data) {
 4608:     if (this.mlist.data.overI != null) 
 4609:       {this.Error('Ambiguous use of '+this.cmd+name); return}
 4610:     this.mlist.data.overI = this.mlist.Length();
 4611:     this.mlist.data.overF = {name: name};
 4612:     if (data.length > 0) {
 4613:       this.mlist.data.overF.left  = this.delimiter[data[0]];
 4614:       this.mlist.data.overF.right = this.delimiter[data[1]];
 4615:     } else if (name.match(/withdelims$/)) {
 4616:       this.mlist.data.overF.left  = this.GetDelimiter(this.cmd+name); if (this.error) return;
 4617:       this.mlist.data.overF.right = this.GetDelimiter(this.cmd+name); if (this.error) return;
 4618:     }
 4619:     if (name.match(/^above/))
 4620:     {
 4621:       this.mlist.data.overF.thickness = this.GetDimen(this.cmd.name,1);
 4622:       if (this.error) return;
 4623:     }
 4624:   },
 4625: 
 4626:   /*
 4627:    *  Add a superscript to the preceeding atom
 4628:    */
 4629:   HandleSuperscript: function () {
 4630:     var base = this.mlist.Last();
 4631:     if (base == null || (!base.atom && base.type != 'box' && base.type != 'frac'))
 4632:        {base = this.mlist.Add(jsMath.mItem.Atom('ord',null))}
 4633:     if (base.sup) {this.Error("Double exponent: use braces to clarify"); return}
 4634:     base.sup = this.ProcessArg('superscript'); if (this.error) return;
 4635:   },
 4636: 
 4637:   /*
 4638:    *  Adda subscript to the preceeding atom
 4639:    */
 4640:   HandleSubscript: function () {
 4641:     var base = this.mlist.Last();
 4642:     if (base == null || (!base.atom && base.type != 'box' && base.type != 'frac'))
 4643:        {base = this.mlist.Add(jsMath.mItem.Atom('ord',null))}
 4644:     if (base.sub) {this.Error("Double subscripts: use braces to clarify"); return}
 4645:     base.sub = this.ProcessArg('subscript'); if (this.error) return;
 4646:   },
 4647: 
 4648:   /*
 4649:    *  Parse a TeX math string, handling macros, etc.
 4650:    */
 4651:   Parse: function () {
 4652:     var c;
 4653:     while (this.i < this.string.length) {
 4654:       c = this.string.charAt(this.i++);
 4655:       if (this.mathchar[c]) {this.HandleMathCode(c,this.mathchar[c])}
 4656:       else if (this.special[c]) {this[this.special[c]](c)}
 4657:       else if (this.letter.test(c)) {this.HandleVariable(c)}
 4658:       else if (this.number.test(c)) {this.HandleNumber(c)}
 4659:       else {this.HandleOther(c)}
 4660:     }
 4661:     if (this.mlist.data.openI != null) {
 4662:       var open = this.mlist.Get(this.mlist.data.openI);
 4663:       if (open.left) {this.Error("Missing "+this.cmd+"right")}
 4664:         else {this.Error("Missing close brace")}
 4665:     }
 4666:     if (this.mlist.data.overI != null) {this.mlist.Over()}
 4667:   },
 4668: 
 4669:   /*
 4670:    *  Perform the processing of Appendix G
 4671:    */
 4672:   Atomize: function () {
 4673:     var data = this.mlist.init;
 4674:     if (!this.error) this.mlist.Atomize(data.style,data.size)
 4675:   },
 4676: 
 4677:   /*
 4678:    *  Produce the final HTML.
 4679:    *  
 4680:    *  We have to wrap the HTML it appropriate <SPAN> tags to hide its
 4681:    *  actual dimensions when these don't match the TeX dimensions of the
 4682:    *  results.  We also include an image to force the results to take up
 4683:    *  the right amount of space.  The results may need to be vertically
 4684:    *  adjusted to make the baseline appear in the correct place.
 4685:    *  
 4686:    *  This is where the touchiest browser-dependent code appears.
 4687:    */
 4688:   Typeset: function () {
 4689:     var data = this.mlist.init;
 4690:     var box = this.typeset = this.mlist.Typeset(data.style,data.size);
 4691:     if (this.error) {return '<SPAN CLASS="error">'+this.error+'</SPAN>'}
 4692:     if (box.format == 'null') {return ''};
 4693:     var rules = ''; var html
 4694: 
 4695:     box.Styled().Remeasured(); var isSmall = 0; var isBig = 0;
 4696:     var w = box.w; var h = box.bh; var d = box.bd;
 4697:     if (box.bh > box.h && box.bh > jsMath.h+.001) {isSmall = 1}
 4698:     if (box.bd > box.d && box.bd > jsMath.d+.001) {isSmall = 1}
 4699:     if (box.h > jsMath.h) {isBig = 1; h = box.h}
 4700:     if (box.d > jsMath.d) {isBig = 1; d = box.d}
 4701: 
 4702:     if (jsMath.show.BBox) {rules += jsMath.HTML.Frame(0,-box.d,w,box.h+box.d,'green')}
 4703:     if (jsMath.show.Top) {rules += jsMath.HTML.Line(0,box.h,w,'red')}
 4704:     if (jsMath.show.Baseline) {rules += jsMath.HTML.Line(0,0,w,'blue')}
 4705: 
 4706:     html = box.html;
 4707:     if (isSmall) {// hide the extra size
 4708:       if (jsMath.allowAbsolute) {
 4709:         var y = jsMath.absoluteOffsetY;
 4710:         if (jsMath.absoluteHeightVaries || box.bh > jsMath.h+.001) {y += (jsMath.h - box.bh)}
 4711:         html = jsMath.HTML.Absolute(html,w,jsMath.h,0,y,jsMath.h);
 4712: 	isBig = 1; h = box.h; d = box.d; 
 4713:       } else {// remove line height and try to hide the depth
 4714:         var dy = jsMath.HTML.Em(Math.max(0,box.bd-jsMath.hd)/3);
 4715:         html = '<SPAN STYLE="line-height: 0;'
 4716:                + ' position: relative; top: '+dy+'; vertical-align: '+dy
 4717:                + '">'
 4718:                + html
 4719:                + '</SPAN>';
 4720:       }
 4721:     }
 4722:     html = '<NOBR>' + rules + html;
 4723:     if (isBig) {// add height and depth to the line (force a little
 4724:                 //    extra to separate lines if needed)
 4725:       html += '<IMG SRC="'+jsMath.blank+'" CLASS="mathHD" '
 4726:                +   'STYLE="height: '+jsMath.HTML.Em(h+d+.2)+'; '
 4727:                +   'vertical-align: '+jsMath.HTML.Em(-d-.1)+';">'
 4728:     }
 4729:     html += '<NOBR>'
 4730:     return html;
 4731:   }
 4732: 
 4733: });
 4734: 
 4735: /*
 4736:  *  Make these characters special (and call the given routines)
 4737:  */
 4738: jsMath.Parser.prototype.AddSpecial({
 4739:   cmd:   'HandleCS',
 4740:   open:  'HandleOpen',
 4741:   close: 'HandleClose'
 4742: });
 4743: 
 4744: 
 4745: /*
 4746:  *  The web-page author can call jsMath.Macro to create additional
 4747:  *  TeX macros for use within his or her mathematics.  jsMath.Macro
 4748:  *  has two required and one optional parameter.  The first parameter
 4749:  *  is the control sequence name that will trigger the macro, and the
 4750:  *  second is the replacement string for that control sequence.
 4751:  *  NOTE:  since the backslash (\) has special meaning in JavaScript,
 4752:  *  you must double the backslash in order to include control sequences
 4753:  *  within your replacement string.  E.g., 
 4754:  *  
 4755:  *      <SCRIPT> jsMath.Macro('R','{\\rm R}') </SCRIPT>
 4756:  * 
 4757:  *  would make \R produce a bold-faced R.
 4758:  *  
 4759:  *  The optional parameter tells how many arguments the macro
 4760:  *  requires.  These are substituted for #1, #2, etc. within the 
 4761:  *  replacement string of the macro.  For example
 4762:  *  
 4763:  *      <SCRIPT> jsMath.Macro('x','{\vec x}_{#1}',1) </SCRIPT>
 4764:  *  
 4765:  *  would make \x1 produce {\vec x}_{1} and \x{i+1} produce {\vec x}_{i+1}.
 4766:  *
 4767:  *  You can put several jsMath.Macro calls together into one .js file, and
 4768:  *  then include that into your web page using a command of the form
 4769:  *  
 4770:  *      <SCRIPT SRC="..."></SCRIPT>
 4771:  *  
 4772:  *  in your main HTML page.  This way you can include the same macros
 4773:  *  into several web pages, for example.
 4774:  */
 4775: 
 4776: jsMath.Add(jsMath,{
 4777:   Macro: function (name) {
 4778:     var macro = jsMath.Parser.prototype.macros;
 4779:     macro[name] = ['Macro'];
 4780:     for (var i = 1; i < arguments.length; i++) 
 4781:       {macro[name][macro[name].length] = arguments[i]}
 4782:   }
 4783: });
 4784: 
 4785: 
 4786: /***************************************************************************/
 4787: 
 4788: /*
 4789:  *  These routines look through the web page for math elements to process.
 4790:  *  There are two main entry points you can call:
 4791:  *  
 4792:  *      <SCRIPT> jsMath.Process() </SCRIPT>
 4793:  *  or
 4794:  *      <SCRIPT> jsMath.ProcessBeforeShowing() </SCRIPT>
 4795:  *
 4796:  *  The first will process the page asynchronously (so the user can start
 4797:  *  reading the top of the file while jsMath is still processing the bottom)
 4798:  *  while the second does not update until all the mathematics is typeset.
 4799:  */
 4800: 
 4801: jsMath.Add(jsMath,{
 4802: 
 4803:   /*
 4804:    *  Typeset a string in \textstyle and return the HTML for it
 4805:    */
 4806:   TextMode: function (s) {
 4807:     var parse = jsMath.Parse(s,null,null,'T');
 4808:     parse.Atomize();
 4809:     var html = parse.Typeset();
 4810:     return html;
 4811:   },
 4812: 
 4813:   /*
 4814:    *  Typeset a string in \displaystyle and return the HTML for it
 4815:    *  ### need to give more control over whether to center, etc. ###
 4816:    */
 4817:   DisplayMode: function (s) {
 4818:     var parse = jsMath.Parse(s,null,null,'D');
 4819:     parse.Atomize();
 4820:     var html = parse.Typeset();
 4821:     return html;
 4822:   },
 4823:   
 4824:   /*
 4825:    *  Return the text of a given DOM element
 4826:    */
 4827:   GetElementText: function (element) {
 4828:     var text = element.innerText;
 4829:     if (text == null) {
 4830:       text = element.textContent;
 4831:       if (text == null) {
 4832:         text = element.innerHTML;
 4833:       }
 4834:     }
 4835:     if (text.search('&')) {
 4836:       text = text.replace(/&lt;/g,'<');
 4837:       text = text.replace(/&gt;/g,'>');
 4838:       text = text.replace(/&quot;/g,'"');
 4839:       text = text.replace(/&amp;/g,'&');
 4840:     }
 4841:     return text;
 4842:   },
 4843:   
 4844:   /*
 4845:    *  Typeset the contents of an element in \textstyle
 4846:    */
 4847:   ConvertText: function (element) {
 4848:     var text = this.GetElementText(element);
 4849:     element.innerHTML = this.TextMode(text);
 4850:     element.className = 'typeset';
 4851:   },
 4852:   
 4853:   /*
 4854:    *  Typeset the contents of an element in \displaystyle
 4855:    */
 4856:   ConvertDisplay: function (element) {
 4857:     var text = this.GetElementText(element);
 4858:     element.innerHTML = this.DisplayMode(text);
 4859:     element.className = 'typeset';
 4860:   },
 4861:   
 4862:   /*
 4863:    *  Call this at the bottom of your HTML page to have the
 4864:    *  mathematics typeset before the page is displayed.
 4865:    *  This can take a long time, so the user could cancel the
 4866:    *  page before it is complete; use it with caution, and only
 4867:    *  when there is a relatively small amount of math on the page.
 4868:    */
 4869:   ProcessBeforeShowing: function () {
 4870:     if (!jsMath.initialized) {jsMath.Init()}
 4871:     var element = jsMath.GetMathElements();
 4872:     for (var i = 0; i < element.length; i++)
 4873:       {jsMath.ProcessElement(element[i])}
 4874:     jsMath.ProcessComplete();
 4875:   },
 4876:   
 4877:   /*
 4878:    *  Process a math element
 4879:    */
 4880:   ProcessElement: function (element) {
 4881:     window.status = 'Processing Math...';
 4882:     if (element.tagName == 'DIV') {
 4883:       this.ConvertDisplay(element);
 4884:     } else if (element.tagName == 'SPAN') {
 4885:       this.ConvertText(element);
 4886:     }
 4887:   },
 4888: 
 4889:   /*
 4890:    *  Asynchronously process all the math elements starting with
 4891:    *  the k-th one
 4892:    */
 4893:   ProcessElements: function (k) {
 4894:     if (k >= this.element.length) {
 4895:       this.ProcessComplete();
 4896:     } else {
 4897:       this.ProcessElement(this.element[k])
 4898:       setTimeout('jsMath.ProcessElements('+(k+1)+')',jsMath.delay);
 4899:     }
 4900:   },
 4901: 
 4902:   /*
 4903:    *  Call this at the bottom of your HTML page to have the
 4904:    *  mathematics typeset asynchronously.  This lets the user
 4905:    *  start reading the mathematics while the rest of the page
 4906:    *  is being processed.
 4907:    */
 4908:   Process: function () {
 4909:     if (!jsMath.initialized) {jsMath.Init()}
 4910:     this.element = this.GetMathElements();
 4911:     window.status = 'Processing Math...';
 4912:     setTimeout('jsMath.ProcessElements(0)',jsMath.delay);
 4913:   },
 4914:   
 4915:   element: [],  // the list of math elements on the page
 4916: 
 4917:   /*
 4918:    *  Look up all the math elements on the page and
 4919:    *  put them in a list sorted from top to bottom of the page
 4920:    */
 4921:   GetMathElements: function () {
 4922:     var element = [];
 4923:     var math = document.getElementsByTagName('DIV');
 4924:     for (var k = 0; k < math.length; k++) {
 4925:       if (math[k].className == 'math') {
 4926:         if (jsMath.renameOK) {math[k].setAttribute('NAME','_jsMath_')}
 4927:           else {element[element.length] = math[k]}
 4928:       }
 4929:     }
 4930:     math = document.getElementsByTagName('SPAN');
 4931:     for (var k = 0; k < math.length; k++) {
 4932:       if (math[k].className == 'math') {
 4933:         if (jsMath.renameOK) {math[k].setAttribute('NAME','_jsMath_')}
 4934:           else {element[element.length] = math[k]}
 4935:       }
 4936:     }
 4937:     // this gets the SPAN and DIV elements interleaved in order
 4938:     if (jsMath.renameOK) {
 4939:       element = document.getElementsByName('_jsMath_')
 4940:     } else if (jsMath.hidden.sourceIndex) {
 4941:       element.sort(function (a,b) {return a.sourceIndex - b.sourceIndex});
 4942:     }
 4943:     return element;
 4944:   },
 4945: 
 4946:   /*
 4947:    *  Remove the window message about processing math
 4948:    *  and clean up any marked <SPAN> or <DIV> tags
 4949:    */
 4950:   ProcessComplete: function () {
 4951:     if (jsMath.renameOK) {
 4952:       var element = document.getElementsByName('_jsMath_');
 4953:       for (var i = element.length-1; i >= 0; i--) {
 4954:         element[i].removeAttribute('NAME');
 4955:       }
 4956:     }
 4957:     jsMath.element = [];
 4958:     window.status = 'Done';
 4959:   }
 4960: 
 4961: });
 4962: 
 4963: /***************************************************************************/
 4964: 
 4965: /*
 4966:  *  We use a hidden <DIV> for measuring the BBoxes of things
 4967:  */
 4968: jsMath.hidden = '<DIV CLASS="normal" ID="jsMath.Hidden" ' + 
 4969:       'STYLE="position:absolute; top:0 left:0;"></DIV>';
 4970: if (document.body.insertAdjacentHTML) {
 4971:    document.body.insertAdjacentHTML('AfterBegin',jsMath.hidden);
 4972: } else {
 4973:    document.write(jsMath.hidden);
 4974: }
 4975: jsMath.hidden = document.getElementById("jsMath.Hidden");
 4976: 
 4977: /*
 4978:  *  Initialize everything
 4979:  */
 4980: jsMath.InitSource();
 4981: jsMath.InitBrowser();
 4982: jsMath.InitStyles();
 4983: 
 4984: //make sure browser-specific loads are done before this
 4985: document.write('<SCRIPT>jsMath.CheckFonts()</SCRIPT>');
 4986: 
 4987: }
 4988: 
 4989: }

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>