aboutsummaryrefslogtreecommitdiff
path: root/js/mathjax/jax/output/CommonHTML/autoload/mtable.js
blob: a83766730c18a73b1775182859badaa8b18d6a3c (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
// @license magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7&dn=apache-2.0.txt Apache-2.0
/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */

/*************************************************************
 *
 *  MathJax/jax/output/CommonHTML/autoload/mtable.js
 *  
 *  Implements the CommonHTML output for <mtable> elements.
 *
 *  ---------------------------------------------------------------------
 *  
 *  Copyright (c) 2015-2020 The MathJax Consortium
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

MathJax.Hub.Register.StartupHook("CommonHTML Jax Ready",function () {
  var VERSION = "2.7.9";
  var MML = MathJax.ElementJax.mml,
      CONFIG = MathJax.Hub.config,
      CHTML = MathJax.OutputJax.CommonHTML,
      SPLIT = MathJax.Hub.SplitList;
  
  var LABEL = -1,
      BIGDIMEN = 1000000;

  MML.mtable.Augment({
    toCommonHTML: function (node) {
      //
      //  Create the table nodes and put them in a table
      //  (so that its bottom is on the baseline, rather than aligned on the top row)
      //
      var state = {rows:[], labels:[], labeled: false};
      node = this.CHTMLdefaultNode(node,{noBBox:true, childOptions:state});
      var table = CHTML.Element("mjx-table");
      while (node.firstChild) table.appendChild(node.firstChild);
      node.appendChild(table);
      //
      //  Get the table attributes
      //
      var values = this.getValues("columnalign","rowalign","columnspacing","rowspacing",
                                  "columnwidth","equalcolumns","equalrows",
                                  "columnlines","rowlines","frame","framespacing",
                                  "align","width","side","minlabelspacing","useHeight");
      var t = CHTML.TEX.min_rule_thickness/CHTML.em;
      state.t = CHTML.Px(t*this.CHTML.scale,1);
      //
      //  Create the table
      //
      this.CHTMLgetBoxSizes(values,state);
      this.CHTMLgetAttributes(values,state);
      this.CHTMLadjustCells(values,state);
      if (values.frame) table.style.border = state.t+" "+values.frame;
      this.CHTMLalignV(values,state,node);
      this.CHTMLcolumnWidths(values,state,node);
      this.CHTMLstretchCells(values,state);
      if (state.labeled) this.CHTMLaddLabels(values,state,node,table);
      //
      //  Set the bounding box (ignores overlapping outside of the table)
      //
      var BBOX = this.CHTML;
      BBOX.w = BBOX.r = state.R;
      BBOX.h = BBOX.t = state.T-state.B;
      BBOX.d = BBOX.b = state.B;
      if (!values.frame && !BBOX.pwidth) {
        node.style.padding = "0 "+CHTML.Em(1/6);
        BBOX.L = BBOX.R = 1/6;
      }
      //
      //  Add any needed space and color
      //
      this.CHTMLhandleSpace(node);
      this.CHTMLhandleBBox(node);
      this.CHTMLhandleColor(node);
      //
      //  Return the completed node
      //
      return node;
    },
    //
    //  Get the natural height, depth, and widths of the rows and columns
    //
    CHTMLgetBoxSizes: function (values,state) {
      var LH = CHTML.FONTDATA.lineH * values.useHeight,
          LD = CHTML.FONTDATA.lineD * values.useHeight;
      var H = [], D = [], W = [], J = -1, i, m;
      for (i = 0, m = this.data.length; i < m; i++) {
        var  row = this.data[i], s = (row.type === "mtr" ? 0 : LABEL);
        H[i] = LH; D[i] = LD;
        for (var j = s, M = row.data.length + s; j < M; j++) {
          if (W[j] == null) {W[j] = -BIGDIMEN; if (j > J) J = j}
          var cbox = row.data[j-s].CHTML;
          if (cbox.h > H[i]) H[i] = cbox.h;
          if (cbox.d > D[i]) D[i] = cbox.d;
          if (cbox.w > W[j]) W[j] = cbox.w;
        }
      }
      if (values.equalrows) {
        state.HD = true;
        var HH = Math.max.apply(Math,H);
        var DD = Math.max.apply(Math,D);
        for (i = 0, m = H.length; i < m; i++) {H[i] = HH; D[i] = DD}
      }
      state.H = H; state.D = D; state.W = W, state.J = J;
    },
    //
    //  Pad the spacing and alignment attributes to match the size of the table
    //
    CHTMLgetAttributes: function (values,state) {
      var CSPACE = SPLIT(values.columnspacing),
          RSPACE = SPLIT(values.rowspacing),
          CALIGN = SPLIT(values.columnalign),
          RALIGN = SPLIT(values.rowalign),
          CLINES = SPLIT(values.columnlines),
          RLINES = SPLIT(values.rowlines),
          CWIDTH = SPLIT(values.columnwidth),
          RCALIGN = [], i, m, J = state.J, M = state.rows.length-1;
      for (i = 0, m = CSPACE.length; i < m; i++) CSPACE[i] = this.CHTMLlength2em(CSPACE[i]);
      for (i = 0, m = RSPACE.length; i < m; i++) RSPACE[i] = this.CHTMLlength2em(RSPACE[i]);
      while (CSPACE.length <  J) CSPACE.push(CSPACE[CSPACE.length-1]);
      while (CALIGN.length <= J) CALIGN.push(CALIGN[CALIGN.length-1]);
      while (CLINES.length <  J) CLINES.push(CLINES[CLINES.length-1]);
      while (CWIDTH.length <= J) CWIDTH.push(CWIDTH[CWIDTH.length-1]);
      while (RSPACE.length <  M) RSPACE.push(RSPACE[RSPACE.length-1]);
      while (RALIGN.length <= M) RALIGN.push(RALIGN[RALIGN.length-1]);
      while (RLINES.length <  M) RLINES.push(RLINES[RLINES.length-1]);
      CALIGN[LABEL] = (values.side.substr(0,1) === "l" ? "left" : "right");
      //
      //  Override aligment data based on row-specific attributes
      //
      for (i = 0; i <= M; i++) {
        var row = this.data[i]; RCALIGN[i] = [];
        if (row.rowalign) RALIGN[i] = row.rowalign;
        if (row.columnalign) {
          RCALIGN[i] = SPLIT(row.columnalign);
          while (RCALIGN[i].length <= J) RCALIGN[i].push(RCALIGN[i][RCALIGN[i].length-1]);
        }
      }
      //
      //  Handle framespacing
      //
      var FSPACE = SPLIT(values.framespacing);
      if (FSPACE.length != 2) FSPACE = SPLIT(this.defaults.framespacing);
      FSPACE[0] = Math.max(0,this.CHTMLlength2em(FSPACE[0]));
      FSPACE[1] = Math.max(0,this.CHTMLlength2em(FSPACE[1]));
      if (values.columnlines.replace(/none/g,"").replace(/ /g,"") !== "" ||
          values.rowlines.replace(/none/g,"").replace(/ /g,"") !== "") values.fspace = true;
      //
      //  Pad arrays so that final column can be treated as all the others
      //
      if (values.frame === MML.LINES.NONE) delete values.frame; else values.fspace = true;
      if (values.frame) {
        FSPACE[0] = Math.max(0,FSPACE[0]);
        FSPACE[1] = Math.max(0,FSPACE[1]);
      }
      if (values.fspace) {
        CSPACE[J] = FSPACE[0]; RSPACE[M] = FSPACE[1];
      } else {
        CSPACE[J] = RSPACE[M] = 0;
      }
      CLINES[J] = RLINES[M] = MML.LINES.NONE;
      //
      //  Save everything in the state
      //
      state.CSPACE = CSPACE; state.RSPACE = RSPACE;
      state.CALIGN = CALIGN; state.RALIGN = RALIGN;
      state.CLINES = CLINES; state.RLINES = RLINES;
      state.CWIDTH = CWIDTH; state.RCALIGN = RCALIGN;
      state.FSPACE = FSPACE;
    },
    //
    //  Add styles to cells to handle borders, spacing, alignment, etc.
    //
    CHTMLadjustCells: function(values,state) {
      var ROWS = state.rows,
          CSPACE = state.CSPACE, CLINES = state.CLINES,
          RSPACE = state.RSPACE, RLINES = state.RLINES,
          CALIGN = state.CALIGN, RALIGN = state.RALIGN,
          RCALIGN = state.RCALIGN;
      CSPACE[state.J] *= 2; RSPACE[ROWS.length-1] *= 2; // since halved below
      var T = "0", B, R, L, border, cbox, align, lastB = 0;
      if (values.fspace) {
        lastB = state.FSPACE[1];
        T = CHTML.Em(state.FSPACE[1]);
      }
      state.RHD = []; state.RH = [];
      for (var i = 0, m = ROWS.length; i < m; i++) {
        var row = ROWS[i], rdata = this.data[i];
        //
        //  Space and borders between rows
        //
        B = RSPACE[i]/2; border = null; L = "0";
        if (RLINES[i] !== MML.LINES.NONE && RLINES[i] !== "") border = state.t+" "+RLINES[i];
        if (border || (CLINES[j] !== MML.LINES.NONE && CLINES[j] !== "")) {
          while (row.length <= state.J) {
            row.push(CHTML.addElement(row.node,"mjx-mtd",null,[['span']]));
          }
        }
        state.RH[i] = lastB + state.H[i];                 // distance to baseline in row
        lastB = Math.max(0,B);
        state.RHD[i] = state.RH[i] + lastB + state.D[i];  // total height of row
        B = CHTML.Em(lastB);
        //
        //  Frame space for initial cell
        //
        if (values.fspace) L = CHTML.Em(state.FSPACE[0]);
        //
        //  The cells in the row
        //
        for (var j = 0, M = row.length; j < M; j++) {
          var s = (rdata.type === "mtr" ? 0 : LABEL);
          var mtd = rdata.data[j-s] || {CHTML: CHTML.BBOX.zero()};
          var cell = row[j].style; cbox = mtd.CHTML;
          //
          //  Space and borders between columns
          //
          R = CSPACE[j]/2;
          if (CLINES[j] !== MML.LINES.NONE) {
            cell.borderRight = state.t+" "+CLINES[j];
            R -= 1/CHTML.em/2;
          }
          R = CHTML.Em(Math.max(0,R));
          cell.padding = T+" "+R+" 0px "+L;
          if (border) cell.borderBottom = border;
          L = R;
          //
          //  Handle vertical alignment
          //
          align = (mtd.rowalign||(this.data[i]||{}).rowalign||RALIGN[i]);
          var H = Math.max(1,cbox.h), D = Math.max(.2,cbox.d),
              HD = (state.H[i]+state.D[i]) - (H+D),
              child = row[j].firstChild.style;
          if (align === MML.ALIGN.TOP) {
            if (HD) child.marginBottom = CHTML.Em(HD);
            cell.verticalAlign = "top";
          } else if (align === MML.ALIGN.BOTTOM) {
            cell.verticalAlign = "bottom";
            if (HD) child.marginTop = CHTML.Em(HD);
          } else if (align === MML.ALIGN.CENTER) {
            if (HD) child.marginTop = child.marginBottom = CHTML.Em(HD/2);
            cell.verticalAlign = "middle";
          } else {
            if (H !== state.H[i]) child.marginTop = CHTML.Em(state.H[i]-H);
          }
          //
          //  Handle horizontal alignment
          //
          align = (mtd.columnalign||RCALIGN[i][j]||CALIGN[j]);
          if (align !== MML.ALIGN.CENTER) cell.textAlign = align;
        }
        row.node.style.height = CHTML.Em(state.RHD[i]);
        T = B;
      }
      CSPACE[state.J] /= 2; RSPACE[ROWS.length-1] /= 2; // back to normal
    },
    //
    //  Align the table vertically according to the align attribute
    //
    CHTMLalignV: function (values,state,node) {
      var n, M = state.rows.length, H = state.H, D = state.D, RSPACE = state.RSPACE;
      //
      //  Get alignment type and row number
      //
      if (typeof(values.align) !== "string") values.align = String(values.align);
      if (values.align.match(/(top|bottom|center|baseline|axis)( +(-?\d+))?/)) {
        n = parseInt(RegExp.$3||"0");
        values.align = RegExp.$1
        if (n < 0) n += state.rows.length + 1;
        if (n > M || n <= 0) n = null;
      } else {
        values.align = this.defaults.align;
      }
      //
      //  Get table height and baseline offset
      //
      var T = 0, B = 0, a = CHTML.TEX.axis_height;
      if (values.fspace) T += state.FSPACE[1];
      if (values.frame) {T += 2/CHTML.em; B += 1/CHTML.em}
      for (var i = 0; i < M; i++) {
        var h = H[i], d = D[i];
        T += h + d + RSPACE[i];
        if (n) {
          if (i === n-1) {
            B += ({top:h+d, bottom:0, center:(h+d)/2,
                   baseline:d, axis:a+d})[values.align] + RSPACE[i];
          }
          if (i >= n) B += h + d + RSPACE[i];
        }
      }
      if (!n) B = ({top:T, bottom:0, center:T/2, baseline:T/2, axis:T/2-a})[values.align];
      //
      //  Place the node and save the values
      //
      if (B) node.style.verticalAlign = CHTML.Em(-B);
      state.T = T; state.B = B;
    },
    //
    //  Determine column widths and set the styles for the columns
    //
    CHTMLcolumnWidths: function (values,state,node) {
      var CWIDTH = state.CWIDTH, CSPACE = state.CSPACE, J = state.J, j;
      var WW = 0, setWidths = false, relWidth = values.width.match(/%$/);
      var i, m, w;
      //
      //  Handle equal columns by adjusting the CWIDTH array
      //
      if (values.width !== "auto" && !relWidth) {
        WW = Math.max(0,this.CHTMLlength2em(values.width,state.R));
        setWidths = true;
      }
      if (values.equalcolumns) {
        if (relWidth) {
          //
          //  Use percent of total (not perfect, but best we can do)
          //
          var p = CHTML.Percent(1/(J+1));
          for (j = 0; j <= J; j++) CWIDTH[j] = p;
        } else {
          //
          //  For width = auto, make all widths equal the widest,
          //  otherwise, for specific width, remove intercolumn space
          //  and divide by number of columns to get widest space.
          //
          w = Math.max.apply(Math,state.W);
          if (values.width !== "auto") {
            var S = (values.fspace ? state.FSPACE[0] + (values.frame ? 2/CHTML.em : 0) : 0);
            for (j = 0; j <= J; j++) S += CSPACE[j];
            w = Math.max((WW-S)/(J+1),w);
          }
          w = CHTML.Em(w);
          for (j = 0; j <= J; j++) CWIDTH[j] = w;
        }
        setWidths = true;
      }
      //
      //  Compute natural table width
      //
      var TW = 0; if (values.fspace) TW = state.FSPACE[0];
      var auto = [], fit = [], percent = [], W = [];
      var row = state.rows[0];
      for (j = 0; j <= J; j++) {
        W[j] = state.W[j];
        if (CWIDTH[j] === "auto") auto.push(j)
        else if (CWIDTH[j] === "fit") fit.push(j)
        else if (CWIDTH[j].match(/%$/)) percent.push(j)
        else W[j] = this.CHTMLlength2em(CWIDTH[j],W[j]);
        TW += W[j] + CSPACE[j];
        if (row[j]) row[j].style.width = CHTML.Em(W[j]);
      }
      if (values.frame) TW += 2/CHTML.em;
      var hasFit = (fit.length > 0);
      //
      //  Adjust widths of columns
      //
      if (setWidths || (relWidth && hasFit)) {
        if (relWidth) {
          //
          //  Attach appropriate widths to the columns
          //  
          for (j = 0; j <= J; j++) {
            cell = row[j].style;
            if (CWIDTH[j] === "auto" && !hasFit) cell.width = "";
            else if (CWIDTH[j] === "fit") cell.width = "";
            else if (CWIDTH[j].match(/%$/)) cell.width = CWIDTH[j];
            else cell.minWidth = cell.maxWidth = cell.width;
          }
        } else {
          //
          //  Compute percentage widths
          //
          if (WW > TW) {
            var extra = 0;
            for (i = 0, m = percent.length; i < m; i++) {
              j = percent[i];
              w = Math.max(W[j],this.CHTMLlength2em(CWIDTH[j],WW));
              extra += w-W[j]; W[j] = w;
              row[j].style.width = CHTML.Em(w);
            }
            TW += extra;
          }
          //
          //  Compute "fit" widths
          //
          if (!hasFit) fit = auto;
          if (WW > TW && fit.length) {
            var dw = (WW - TW) / fit.length;
            for (i = 0, m = fit.length; i < m; i++) {
              j = fit[i]; W[j] += dw;
              row[j].style.width = CHTML.Em(W[j]);
            }
            TW = WW;
          }
        }
      }
      W[LABEL] = state.W[LABEL];
      state.W = W;
      state.R = TW;
      //
      //  Set variable width on DOM nodes
      //
      if (relWidth) {
        node.style.width = this.CHTML.pwidth = "100%";
        this.CHTML.mwidth = CHTML.Em(TW);
        node.firstChild.style.width = values.width;
        node.firstChild.style.margin = "auto";
      }
    },
    //
    //  Stretch any cells that can be stretched
    //
    CHTMLstretchCells: function (values,state) {
      var ROWS = state.rows, H = state.H, D = state.D, W = state.W,
          J = state.J, M = ROWS.length-1;
      for (var i = 0; i <= M; i++) {
        var row = ROWS[i], rdata = this.data[i];
        var h = H[i], d = D[i];
        for (var j = 0; j <= J; j++) {
          var cell = row[j], cdata = rdata.data[j];
          if (!cdata) continue;
          if (cdata.CHTML.stretch === "V") cdata.CHTMLstretchV(h,d);
          else if (cdata.CHTML.stretch === "H") cdata.CHTMLstretchH(cell,W[j]);
        }
      }
    },
    //
    //  Add labels to a table
    //
    CHTMLaddLabels: function (values,state,node,table) {
      //
      //  Get indentation and alignment
      //
      var indent = this.getValues("indentalignfirst","indentshiftfirst","indentalign","indentshift");
      if (indent.indentalignfirst !== MML.INDENTALIGN.INDENTALIGN) indent.indentalign = indent.indentalignfirst;
      if (indent.indentalign === MML.INDENTALIGN.AUTO) indent.indentalign = CONFIG.displayAlign;
      if (indent.indentshiftfirst !== MML.INDENTSHIFT.INDENTSHIFT) indent.indentshift = indent.indentshiftfirst;
      if (indent.indentshift === "auto") indent.indentshift = "0";
      var shift = this.CHTMLlength2em(indent.indentshift,CHTML.cwidth);
      var labelspace = this.CHTMLlength2em(values.minlabelspacing,.8);
      var labelW = labelspace + state.W[LABEL], labelshift = 0, tw = state.R;
      var dIndent = this.CHTMLlength2em(CONFIG.displayIndent,CHTML.cwidth);
      var s = (state.CALIGN[LABEL] === MML.INDENTALIGN.RIGHT ? -1 : 1);
      if (indent.indentalign === MML.INDENTALIGN.CENTER) {
        tw += 2 * (labelW - s*(shift + dIndent));
        shift += dIndent;
      } else if (state.CALIGN[LABEL] === indent.indentalign) {
        if (dIndent < 0) {labelshift = s*dIndent; dIndent = 0}
        shift += s*dIndent; if (labelW > s*shift) shift = s*labelW; shift += labelshift;
        shift *= s; tw += shift;
      } else {
        tw += labelW - s*shift + dIndent;
        shift -= s*dIndent; shift *= -s;
      }
      //
      //  Create boxes for table and labels
      //
      var box = CHTML.addElement(node,"mjx-box",{
        style:{width:"100%","text-align":indent.indentalign}
      }); box.appendChild(table);
      var labels = CHTML.Element("mjx-itable");
      table.style.display = "inline-table"; if (!table.style.width) table.style.width = "auto";
      labels.style.verticalAlign = "top";
      table.style.verticalAlign = CHTML.Em(state.T-state.B-state.H[0]);
      node.style.verticalAlign = "";
      if (shift) {
        if (indent.indentalign === MML.INDENTALIGN.CENTER) {
          table.style.marginLeft = CHTML.Em(shift);
          table.style.marginRight = CHTML.Em(-shift);
        } else {
          var margin = "margin" + (indent.indentalign === MML.INDENTALIGN.RIGHT ? "Right" : "Left");
          table.style[margin] = CHTML.Em(shift);
        }
      }
      //
      //  Add labels on correct side
      //
      if (state.CALIGN[LABEL] === "left") {
        node.insertBefore(labels,box);
        labels.style.marginRight = CHTML.Em(-state.W[LABEL]-labelshift);
        if (labelshift) labels.style.marginLeft = CHTML.Em(labelshift);
      } else {
        node.appendChild(labels);
        labels.style.marginLeft = CHTML.Em(-state.W[LABEL]+labelshift);
      }
      //
      //  Vertically align the labels with their rows
      //
      var LABELS = state.labels, T = 0;
      if (values.fspace) T = state.FSPACE[0] + (values.frame ? 1/CHTML.em : 0);
      for (var i = 0, m = LABELS.length; i < m; i++) {
        if (LABELS[i] && this.data[i].data[0]) {
          labels.appendChild(LABELS[i]);
          var lbox = this.data[i].data[0].CHTML;
          T = state.RH[i] - Math.max(1,lbox.h);
          if (T) LABELS[i].firstChild.firstChild.style.marginTop = CHTML.Em(T);
          LABELS[i].style.height = CHTML.Em(state.RHD[i]);
        } else {
          CHTML.addElement(labels,"mjx-label",{style:{height:CHTML.Em(state.RHD[i])}});
        }
      }
      //
      //  Propagate full-width equations, and reserve room for equation plus label
      //
      node.style.width = this.CHTML.pwidth = "100%";
      node.style.minWidth = this.CHTML.mwidth = CHTML.Em(Math.max(0,tw));
    }
  });
  
  MML.mtr.Augment({
    toCommonHTML: function (node,options) {
      //
      //  Create the row node
      //
      node = this.CHTMLcreateNode(node);
      this.CHTMLhandleStyle(node);
      this.CHTMLhandleScale(node);
      //
      //  Add a new row with no label
      //
      if (!options) options = {rows:[],labels:[]};
      var row = []; options.rows.push(row); row.node = node;
      options.labels.push(null);
      //
      //  Add the cells to the row
      //
      for (var i = 0, m = this.data.length; i < m; i++)
        row.push(this.CHTMLaddChild(node,i,options));
      //
      this.CHTMLhandleColor(node);
      return node;
    }
  });
  MML.mlabeledtr.Augment({
    toCommonHTML: function (node,options) {
      //
      //  Create the row node
      //
      node = this.CHTMLcreateNode(node);
      this.CHTMLhandleStyle(node);
      this.CHTMLhandleScale(node);
      //
      //  Add a new row, and get the label
      //
      if (!options) options = {rows:[],labels:[]};
      var row = []; options.rows.push(row); row.node = node;
      var label = CHTML.Element("mjx-label"); options.labels.push(label);
      this.CHTMLaddChild(label,0,options);
      if (this.data[0]) options.labeled = true;
      //
      //  Add the cells to the row
      //
      for (var i = 1, m = this.data.length; i < m; i++)
        row.push(this.CHTMLaddChild(node,i,options));
      //
      this.CHTMLhandleColor(node);
      return node;
    }
  });
  MML.mtd.Augment({
    toCommonHTML: function (node,options) {
      node = this.CHTMLdefaultNode(node,options);
      CHTML.addElement(node.firstChild,"mjx-strut");  // forces height to 1em (we adjust later)
      //
      //  Determine if this is stretchy or not
      //
      if (this.isEmbellished()) {
        var mo = this.CoreMO(), BBOX = this.CHTML;
        if (mo.CHTMLcanStretch("Vertical")) BBOX.stretch = "V";
        else if (mo.CHTMLcanStretch("Horizontal")) BBOX.stretch = "H";
        if (BBOX.stretch) {
          var min = mo.Get("minsize",true);
          if (min) {
            if (BBOX.stretch === "V") {
              var HD = BBOX.h + BBOX.d;
              if (HD) {
                var r = this.CHTMLlength2em(min,HD)/HD;
                if (r > 1) {BBOX.h *= r; BBOX.d *= r}
              }
            } else {
              BBOX.w = Math.max(BBOX.w,this.CHTMLlength2em(min,BBOX.w));
            }
          }
        }
      }
      return node;
    }
  });

  
  MathJax.Hub.Startup.signal.Post("CommonHTML mtable Ready");
  MathJax.Ajax.loadComplete(CHTML.autoloadDir+"/mtable.js");
});

// @license-end