forked from FHIR/ig-registry
-
Notifications
You must be signed in to change notification settings - Fork 0
/
cm.js
3379 lines (2909 loc) · 168 KB
/
cm.js
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
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.commonmark = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
"use strict";
var Node = require('./node');
var unescapeString = require('./common').unescapeString;
var OPENTAG = require('./common').OPENTAG;
var CLOSETAG = require('./common').CLOSETAG;
var CODE_INDENT = 4;
var C_TAB = 9;
var C_NEWLINE = 10;
var C_GREATERTHAN = 62;
var C_LESSTHAN = 60;
var C_SPACE = 32;
var C_OPEN_BRACKET = 91;
var InlineParser = require('./inlines');
var reHtmlBlockOpen = [
/./, // dummy for 0
/^<(?:script|pre|style)(?:\s|>|$)/i,
/^<!--/,
/^<[?]/,
/^<![A-Z]/,
/^<!\[CDATA\[/,
/^<[/]?(?:address|article|aside|base|basefont|blockquote|body|caption|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption|figure|footer|form|frame|frameset|h[123456]|head|header|hr|html|iframe|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option|p|param|section|source|title|summary|table|tbody|td|tfoot|th|thead|title|tr|track|ul)(?:\s|[/]?[>]|$)/i,
new RegExp('^(?:' + OPENTAG + '|' + CLOSETAG + ')\\s*$', 'i')
];
var reHtmlBlockClose = [
/./, // dummy for 0
/<\/(?:script|pre|style)>/i,
/-->/,
/\?>/,
/>/,
/\]\]>/
];
var reThematicBreak = /^(?:(?:\*[ \t]*){3,}|(?:_[ \t]*){3,}|(?:-[ \t]*){3,})[ \t]*$/;
var reMaybeSpecial = /^[#`~*+_=<>0-9-]/;
var reNonSpace = /[^ \t\f\v\r\n]/;
var reBulletListMarker = /^[*+-]/;
var reOrderedListMarker = /^(\d{1,9})([.)])/;
var reATXHeadingMarker = /^#{1,6}(?:[ \t]+|$)/;
var reCodeFence = /^`{3,}(?!.*`)|^~{3,}(?!.*~)/;
var reClosingCodeFence = /^(?:`{3,}|~{3,})(?= *$)/;
var reSetextHeadingLine = /^(?:=+|-+)[ \t]*$/;
var reLineEnding = /\r\n|\n|\r/;
// Returns true if string contains only space characters.
var isBlank = function(s) {
return !(reNonSpace.test(s));
};
var isSpaceOrTab = function(c) {
return c === C_SPACE || c === C_TAB;
};
var peek = function(ln, pos) {
if (pos < ln.length) {
return ln.charCodeAt(pos);
} else {
return -1;
}
};
// DOC PARSER
// These are methods of a Parser object, defined below.
// Returns true if block ends with a blank line, descending if needed
// into lists and sublists.
var endsWithBlankLine = function(block) {
while (block) {
if (block._lastLineBlank) {
return true;
}
var t = block.type;
if (t === 'list' || t === 'item') {
block = block._lastChild;
} else {
break;
}
}
return false;
};
// Add a line to the block at the tip. We assume the tip
// can accept lines -- that check should be done before calling this.
var addLine = function() {
if (this.partiallyConsumedTab) {
this.offset += 1; // skip over tab
// add space characters:
var charsToTab = 4 - (this.column % 4);
this.tip._string_content += (' '.repeat(charsToTab));
}
this.tip._string_content += this.currentLine.slice(this.offset) + '\n';
};
// Add block of type tag as a child of the tip. If the tip can't
// accept children, close and finalize it and try its parent,
// and so on til we find a block that can accept children.
var addChild = function(tag, offset) {
while (!this.blocks[this.tip.type].canContain(tag)) {
this.finalize(this.tip, this.lineNumber - 1);
}
var column_number = offset + 1; // offset 0 = column 1
var newBlock = new Node(tag, [[this.lineNumber, column_number], [0, 0]]);
newBlock._string_content = '';
this.tip.appendChild(newBlock);
this.tip = newBlock;
return newBlock;
};
// Parse a list marker and return data on the marker (type,
// start, delimiter, bullet character, padding) or null.
var parseListMarker = function(parser, container) {
var rest = parser.currentLine.slice(parser.nextNonspace);
var match;
var nextc;
var spacesStartCol;
var spacesStartOffset;
var data = { type: null,
tight: true, // lists are tight by default
bulletChar: null,
start: null,
delimiter: null,
padding: null,
markerOffset: parser.indent };
if ((match = rest.match(reBulletListMarker))) {
data.type = 'bullet';
data.bulletChar = match[0][0];
} else if ((match = rest.match(reOrderedListMarker)) &&
(container.type !== 'paragraph' ||
match[1] === '1')) {
data.type = 'ordered';
data.start = parseInt(match[1]);
data.delimiter = match[2];
} else {
return null;
}
// make sure we have spaces after
nextc = peek(parser.currentLine, parser.nextNonspace + match[0].length);
if (!(nextc === -1 || nextc === C_TAB || nextc === C_SPACE)) {
return null;
}
// if it interrupts paragraph, make sure first line isn't blank
if (container.type === 'paragraph' && !parser.currentLine.slice(parser.nextNonspace + match[0].length).match(reNonSpace)) {
return null;
}
// we've got a match! advance offset and calculate padding
parser.advanceNextNonspace(); // to start of marker
parser.advanceOffset(match[0].length, true); // to end of marker
spacesStartCol = parser.column;
spacesStartOffset = parser.offset;
do {
parser.advanceOffset(1, true);
nextc = peek(parser.currentLine, parser.offset);
} while (parser.column - spacesStartCol < 5 &&
isSpaceOrTab(nextc));
var blank_item = peek(parser.currentLine, parser.offset) === -1;
var spaces_after_marker = parser.column - spacesStartCol;
if (spaces_after_marker >= 5 ||
spaces_after_marker < 1 ||
blank_item) {
data.padding = match[0].length + 1;
parser.column = spacesStartCol;
parser.offset = spacesStartOffset;
if (isSpaceOrTab(peek(parser.currentLine, parser.offset))) {
parser.advanceOffset(1, true);
}
} else {
data.padding = match[0].length + spaces_after_marker;
}
return data;
};
// Returns true if the two list items are of the same type,
// with the same delimiter and bullet character. This is used
// in agglomerating list items into lists.
var listsMatch = function(list_data, item_data) {
return (list_data.type === item_data.type &&
list_data.delimiter === item_data.delimiter &&
list_data.bulletChar === item_data.bulletChar);
};
// Finalize and close any unmatched blocks.
var closeUnmatchedBlocks = function() {
if (!this.allClosed) {
// finalize any blocks not matched
while (this.oldtip !== this.lastMatchedContainer) {
var parent = this.oldtip._parent;
this.finalize(this.oldtip, this.lineNumber - 1);
this.oldtip = parent;
}
this.allClosed = true;
}
};
// 'finalize' is run when the block is closed.
// 'continue' is run to check whether the block is continuing
// at a certain line and offset (e.g. whether a block quote
// contains a `>`. It returns 0 for matched, 1 for not matched,
// and 2 for "we've dealt with this line completely, go to next."
var blocks = {
document: {
continue: function() { return 0; },
finalize: function() { return; },
canContain: function(t) { return (t !== 'item'); },
acceptsLines: false
},
list: {
continue: function() { return 0; },
finalize: function(parser, block) {
var item = block._firstChild;
while (item) {
// check for non-final list item ending with blank line:
if (endsWithBlankLine(item) && item._next) {
block._listData.tight = false;
break;
}
// recurse into children of list item, to see if there are
// spaces between any of them:
var subitem = item._firstChild;
while (subitem) {
if (endsWithBlankLine(subitem) &&
(item._next || subitem._next)) {
block._listData.tight = false;
break;
}
subitem = subitem._next;
}
item = item._next;
}
},
canContain: function(t) { return (t === 'item'); },
acceptsLines: false
},
block_quote: {
continue: function(parser) {
var ln = parser.currentLine;
if (!parser.indented &&
peek(ln, parser.nextNonspace) === C_GREATERTHAN) {
parser.advanceNextNonspace();
parser.advanceOffset(1, false);
if (isSpaceOrTab(peek(ln, parser.offset))) {
parser.advanceOffset(1, true);
}
} else {
return 1;
}
return 0;
},
finalize: function() { return; },
canContain: function(t) { return (t !== 'item'); },
acceptsLines: false
},
item: {
continue: function(parser, container) {
if (parser.blank) {
if (container._firstChild == null) {
// Blank line after empty list item
return 1;
} else {
parser.advanceNextNonspace();
}
} else if (parser.indent >=
container._listData.markerOffset +
container._listData.padding) {
parser.advanceOffset(container._listData.markerOffset +
container._listData.padding, true);
} else {
return 1;
}
return 0;
},
finalize: function() { return; },
canContain: function(t) { return (t !== 'item'); },
acceptsLines: false
},
heading: {
continue: function() {
// a heading can never container > 1 line, so fail to match:
return 1;
},
finalize: function() { return; },
canContain: function() { return false; },
acceptsLines: false
},
thematic_break: {
continue: function() {
// a thematic break can never container > 1 line, so fail to match:
return 1;
},
finalize: function() { return; },
canContain: function() { return false; },
acceptsLines: false
},
code_block: {
continue: function(parser, container) {
var ln = parser.currentLine;
var indent = parser.indent;
if (container._isFenced) { // fenced
var match = (indent <= 3 &&
ln.charAt(parser.nextNonspace) === container._fenceChar &&
ln.slice(parser.nextNonspace).match(reClosingCodeFence));
if (match && match[0].length >= container._fenceLength) {
// closing fence - we're at end of line, so we can return
parser.finalize(container, parser.lineNumber);
return 2;
} else {
// skip optional spaces of fence offset
var i = container._fenceOffset;
while (i > 0 && isSpaceOrTab(peek(ln, parser.offset))) {
parser.advanceOffset(1, true);
i--;
}
}
} else { // indented
if (indent >= CODE_INDENT) {
parser.advanceOffset(CODE_INDENT, true);
} else if (parser.blank) {
parser.advanceNextNonspace();
} else {
return 1;
}
}
return 0;
},
finalize: function(parser, block) {
if (block._isFenced) { // fenced
// first line becomes info string
var content = block._string_content;
var newlinePos = content.indexOf('\n');
var firstLine = content.slice(0, newlinePos);
var rest = content.slice(newlinePos + 1);
block.info = unescapeString(firstLine.trim());
block._literal = rest;
} else { // indented
block._literal = block._string_content.replace(/(\n *)+$/, '\n');
}
block._string_content = null; // allow GC
},
canContain: function() { return false; },
acceptsLines: true
},
html_block: {
continue: function(parser, container) {
return ((parser.blank &&
(container._htmlBlockType === 6 ||
container._htmlBlockType === 7)) ? 1 : 0);
},
finalize: function(parser, block) {
block._literal = block._string_content.replace(/(\n *)+$/, '');
block._string_content = null; // allow GC
},
canContain: function() { return false; },
acceptsLines: true
},
paragraph: {
continue: function(parser) {
return (parser.blank ? 1 : 0);
},
finalize: function(parser, block) {
var pos;
var hasReferenceDefs = false;
// try parsing the beginning as link reference definitions:
while (peek(block._string_content, 0) === C_OPEN_BRACKET &&
(pos =
parser.inlineParser.parseReference(block._string_content,
parser.refmap))) {
block._string_content = block._string_content.slice(pos);
hasReferenceDefs = true;
}
if (hasReferenceDefs && isBlank(block._string_content)) {
block.unlink();
}
},
canContain: function() { return false; },
acceptsLines: true
}
};
// block start functions. Return values:
// 0 = no match
// 1 = matched container, keep going
// 2 = matched leaf, no more block starts
var blockStarts = [
// block quote
function(parser) {
if (!parser.indented &&
peek(parser.currentLine, parser.nextNonspace) === C_GREATERTHAN) {
parser.advanceNextNonspace();
parser.advanceOffset(1, false);
// optional following space
if (isSpaceOrTab(peek(parser.currentLine, parser.offset))) {
parser.advanceOffset(1, true);
}
parser.closeUnmatchedBlocks();
parser.addChild('block_quote', parser.nextNonspace);
return 1;
} else {
return 0;
}
},
// ATX heading
function(parser) {
var match;
if (!parser.indented &&
(match = parser.currentLine.slice(parser.nextNonspace).match(reATXHeadingMarker))) {
parser.advanceNextNonspace();
parser.advanceOffset(match[0].length, false);
parser.closeUnmatchedBlocks();
var container = parser.addChild('heading', parser.nextNonspace);
container.level = match[0].trim().length; // number of #s
// remove trailing ###s:
container._string_content =
parser.currentLine.slice(parser.offset).replace(/^[ \t]*#+[ \t]*$/, '').replace(/[ \t]+#+[ \t]*$/, '');
parser.advanceOffset(parser.currentLine.length - parser.offset);
return 2;
} else {
return 0;
}
},
// Fenced code block
function(parser) {
var match;
if (!parser.indented &&
(match = parser.currentLine.slice(parser.nextNonspace).match(reCodeFence))) {
var fenceLength = match[0].length;
parser.closeUnmatchedBlocks();
var container = parser.addChild('code_block', parser.nextNonspace);
container._isFenced = true;
container._fenceLength = fenceLength;
container._fenceChar = match[0][0];
container._fenceOffset = parser.indent;
parser.advanceNextNonspace();
parser.advanceOffset(fenceLength, false);
return 2;
} else {
return 0;
}
},
// HTML block
function(parser, container) {
if (!parser.indented &&
peek(parser.currentLine, parser.nextNonspace) === C_LESSTHAN) {
var s = parser.currentLine.slice(parser.nextNonspace);
var blockType;
for (blockType = 1; blockType <= 7; blockType++) {
if (reHtmlBlockOpen[blockType].test(s) &&
(blockType < 7 ||
container.type !== 'paragraph')) {
parser.closeUnmatchedBlocks();
// We don't adjust parser.offset;
// spaces are part of the HTML block:
var b = parser.addChild('html_block',
parser.offset);
b._htmlBlockType = blockType;
return 2;
}
}
}
return 0;
},
// Setext heading
function(parser, container) {
var match;
if (!parser.indented &&
container.type === 'paragraph' &&
((match = parser.currentLine.slice(parser.nextNonspace).match(reSetextHeadingLine)))) {
parser.closeUnmatchedBlocks();
var heading = new Node('heading', container.sourcepos);
heading.level = match[0][0] === '=' ? 1 : 2;
heading._string_content = container._string_content;
container.insertAfter(heading);
container.unlink();
parser.tip = heading;
parser.advanceOffset(parser.currentLine.length - parser.offset, false);
return 2;
} else {
return 0;
}
},
// thematic break
function(parser) {
if (!parser.indented &&
reThematicBreak.test(parser.currentLine.slice(parser.nextNonspace))) {
parser.closeUnmatchedBlocks();
parser.addChild('thematic_break', parser.nextNonspace);
parser.advanceOffset(parser.currentLine.length - parser.offset, false);
return 2;
} else {
return 0;
}
},
// list item
function(parser, container) {
var data;
if ((!parser.indented || container.type === 'list')
&& (data = parseListMarker(parser, container))) {
parser.closeUnmatchedBlocks();
// add the list if needed
if (parser.tip.type !== 'list' ||
!(listsMatch(container._listData, data))) {
container = parser.addChild('list', parser.nextNonspace);
container._listData = data;
}
// add the list item
container = parser.addChild('item', parser.nextNonspace);
container._listData = data;
return 1;
} else {
return 0;
}
},
// indented code block
function(parser) {
if (parser.indented &&
parser.tip.type !== 'paragraph' &&
!parser.blank) {
// indented code
parser.advanceOffset(CODE_INDENT, true);
parser.closeUnmatchedBlocks();
parser.addChild('code_block', parser.offset);
return 2;
} else {
return 0;
}
}
];
var advanceOffset = function(count, columns) {
var currentLine = this.currentLine;
var charsToTab, charsToAdvance;
var c;
while (count > 0 && (c = currentLine[this.offset])) {
if (c === '\t') {
charsToTab = 4 - (this.column % 4);
if (columns) {
this.partiallyConsumedTab = charsToTab > count;
charsToAdvance = charsToTab > count ? count : charsToTab;
this.column += charsToAdvance;
this.offset += this.partiallyConsumedTab ? 0 : 1;
count -= charsToAdvance;
} else {
this.partiallyConsumedTab = false;
this.column += charsToTab;
this.offset += 1;
count -= 1;
}
} else {
this.partiallyConsumedTab = false;
this.offset += 1;
this.column += 1; // assume ascii; block starts are ascii
count -= 1;
}
}
};
var advanceNextNonspace = function() {
this.offset = this.nextNonspace;
this.column = this.nextNonspaceColumn;
this.partiallyConsumedTab = false;
};
var findNextNonspace = function() {
var currentLine = this.currentLine;
var i = this.offset;
var cols = this.column;
var c;
while ((c = currentLine.charAt(i)) !== '') {
if (c === ' ') {
i++;
cols++;
} else if (c === '\t') {
i++;
cols += (4 - (cols % 4));
} else {
break;
}
}
this.blank = (c === '\n' || c === '\r' || c === '');
this.nextNonspace = i;
this.nextNonspaceColumn = cols;
this.indent = this.nextNonspaceColumn - this.column;
this.indented = this.indent >= CODE_INDENT;
};
// Analyze a line of text and update the document appropriately.
// We parse markdown text by calling this on each line of input,
// then finalizing the document.
var incorporateLine = function(ln) {
var all_matched = true;
var t;
var container = this.doc;
this.oldtip = this.tip;
this.offset = 0;
this.column = 0;
this.blank = false;
this.partiallyConsumedTab = false;
this.lineNumber += 1;
// replace NUL characters for security
if (ln.indexOf('\u0000') !== -1) {
ln = ln.replace(/\0/g, '\uFFFD');
}
this.currentLine = ln;
// For each containing block, try to parse the associated line start.
// Bail out on failure: container will point to the last matching block.
// Set all_matched to false if not all containers match.
var lastChild;
while ((lastChild = container._lastChild) && lastChild._open) {
container = lastChild;
this.findNextNonspace();
switch (this.blocks[container.type].continue(this, container)) {
case 0: // we've matched, keep going
break;
case 1: // we've failed to match a block
all_matched = false;
break;
case 2: // we've hit end of line for fenced code close and can return
this.lastLineLength = ln.length;
return;
default:
throw 'continue returned illegal value, must be 0, 1, or 2';
}
if (!all_matched) {
container = container._parent; // back up to last matching block
break;
}
}
this.allClosed = (container === this.oldtip);
this.lastMatchedContainer = container;
var matchedLeaf = container.type !== 'paragraph' &&
blocks[container.type].acceptsLines;
var starts = this.blockStarts;
var startsLen = starts.length;
// Unless last matched container is a code block, try new container starts,
// adding children to the last matched container:
while (!matchedLeaf) {
this.findNextNonspace();
// this is a little performance optimization:
if (!this.indented &&
!reMaybeSpecial.test(ln.slice(this.nextNonspace))) {
this.advanceNextNonspace();
break;
}
var i = 0;
while (i < startsLen) {
var res = starts[i](this, container);
if (res === 1) {
container = this.tip;
break;
} else if (res === 2) {
container = this.tip;
matchedLeaf = true;
break;
} else {
i++;
}
}
if (i === startsLen) { // nothing matched
this.advanceNextNonspace();
break;
}
}
// What remains at the offset is a text line. Add the text to the
// appropriate container.
// First check for a lazy paragraph continuation:
if (!this.allClosed && !this.blank &&
this.tip.type === 'paragraph') {
// lazy paragraph continuation
this.addLine();
} else { // not a lazy continuation
// finalize any blocks not matched
this.closeUnmatchedBlocks();
if (this.blank && container.lastChild) {
container.lastChild._lastLineBlank = true;
}
t = container.type;
// Block quote lines are never blank as they start with >
// and we don't count blanks in fenced code for purposes of tight/loose
// lists or breaking out of lists. We also don't set _lastLineBlank
// on an empty list item, or if we just closed a fenced block.
var lastLineBlank = this.blank &&
!(t === 'block_quote' ||
(t === 'code_block' && container._isFenced) ||
(t === 'item' &&
!container._firstChild &&
container.sourcepos[0][0] === this.lineNumber));
// propagate lastLineBlank up through parents:
var cont = container;
while (cont) {
cont._lastLineBlank = lastLineBlank;
cont = cont._parent;
}
if (this.blocks[t].acceptsLines) {
this.addLine();
// if HtmlBlock, check for end condition
if (t === 'html_block' &&
container._htmlBlockType >= 1 &&
container._htmlBlockType <= 5 &&
reHtmlBlockClose[container._htmlBlockType].test(this.currentLine.slice(this.offset))) {
this.finalize(container, this.lineNumber);
}
} else if (this.offset < ln.length && !this.blank) {
// create paragraph container for line
container = this.addChild('paragraph', this.offset);
this.advanceNextNonspace();
this.addLine();
}
}
this.lastLineLength = ln.length;
};
// Finalize a block. Close it and do any necessary postprocessing,
// e.g. creating string_content from strings, setting the 'tight'
// or 'loose' status of a list, and parsing the beginnings
// of paragraphs for reference definitions. Reset the tip to the
// parent of the closed block.
var finalize = function(block, lineNumber) {
var above = block._parent;
block._open = false;
block.sourcepos[1] = [lineNumber, this.lastLineLength];
this.blocks[block.type].finalize(this, block);
this.tip = above;
};
// Walk through a block & children recursively, parsing string content
// into inline content where appropriate.
var processInlines = function(block) {
var node, event, t;
var walker = block.walker();
this.inlineParser.refmap = this.refmap;
this.inlineParser.options = this.options;
while ((event = walker.next())) {
node = event.node;
t = node.type;
if (!event.entering && (t === 'paragraph' || t === 'heading')) {
this.inlineParser.parse(node);
}
}
};
var Document = function() {
var doc = new Node('document', [[1, 1], [0, 0]]);
return doc;
};
// The main parsing function. Returns a parsed document AST.
var parse = function(input) {
this.doc = new Document();
this.tip = this.doc;
this.refmap = {};
this.lineNumber = 0;
this.lastLineLength = 0;
this.offset = 0;
this.column = 0;
this.lastMatchedContainer = this.doc;
this.currentLine = "";
if (this.options.time) { console.time("preparing input"); }
var lines = input.split(reLineEnding);
var len = lines.length;
if (input.charCodeAt(input.length - 1) === C_NEWLINE) {
// ignore last blank line created by final newline
len -= 1;
}
if (this.options.time) { console.timeEnd("preparing input"); }
if (this.options.time) { console.time("block parsing"); }
for (var i = 0; i < len; i++) {
this.incorporateLine(lines[i]);
}
while (this.tip) {
this.finalize(this.tip, len);
}
if (this.options.time) { console.timeEnd("block parsing"); }
if (this.options.time) { console.time("inline parsing"); }
this.processInlines(this.doc);
if (this.options.time) { console.timeEnd("inline parsing"); }
return this.doc;
};
// The Parser object.
function Parser(options){
return {
doc: new Document(),
blocks: blocks,
blockStarts: blockStarts,
tip: this.doc,
oldtip: this.doc,
currentLine: "",
lineNumber: 0,
offset: 0,
column: 0,
nextNonspace: 0,
nextNonspaceColumn: 0,
indent: 0,
indented: false,
blank: false,
partiallyConsumedTab: false,
allClosed: true,
lastMatchedContainer: this.doc,
refmap: {},
lastLineLength: 0,
inlineParser: new InlineParser(options),
findNextNonspace: findNextNonspace,
advanceOffset: advanceOffset,
advanceNextNonspace: advanceNextNonspace,
addLine: addLine,
addChild: addChild,
incorporateLine: incorporateLine,
finalize: finalize,
processInlines: processInlines,
closeUnmatchedBlocks: closeUnmatchedBlocks,
parse: parse,
options: options || {}
};
}
module.exports = Parser;
},{"./common":2,"./inlines":5,"./node":6}],2:[function(require,module,exports){
"use strict";
var encode = require('mdurl/encode');
var decode = require('mdurl/decode');
var C_BACKSLASH = 92;
var decodeHTML = require('entities').decodeHTML;
var ENTITY = "&(?:#x[a-f0-9]{1,8}|#[0-9]{1,8}|[a-z][a-z0-9]{1,31});";
var TAGNAME = '[A-Za-z][A-Za-z0-9-]*';
var ATTRIBUTENAME = '[a-zA-Z_:][a-zA-Z0-9:._-]*';
var UNQUOTEDVALUE = "[^\"'=<>`\\x00-\\x20]+";
var SINGLEQUOTEDVALUE = "'[^']*'";
var DOUBLEQUOTEDVALUE = '"[^"]*"';
var ATTRIBUTEVALUE = "(?:" + UNQUOTEDVALUE + "|" + SINGLEQUOTEDVALUE + "|" + DOUBLEQUOTEDVALUE + ")";
var ATTRIBUTEVALUESPEC = "(?:" + "\\s*=" + "\\s*" + ATTRIBUTEVALUE + ")";
var ATTRIBUTE = "(?:" + "\\s+" + ATTRIBUTENAME + ATTRIBUTEVALUESPEC + "?)";
var OPENTAG = "<" + TAGNAME + ATTRIBUTE + "*" + "\\s*/?>";
var CLOSETAG = "</" + TAGNAME + "\\s*[>]";
var HTMLCOMMENT = "<!---->|<!--(?:-?[^>-])(?:-?[^-])*-->";
var PROCESSINGINSTRUCTION = "[<][?].*?[?][>]";
var DECLARATION = "<![A-Z]+" + "\\s+[^>]*>";
var CDATA = "<!\\[CDATA\\[[\\s\\S]*?\\]\\]>";
var HTMLTAG = "(?:" + OPENTAG + "|" + CLOSETAG + "|" + HTMLCOMMENT + "|" +
PROCESSINGINSTRUCTION + "|" + DECLARATION + "|" + CDATA + ")";
var reHtmlTag = new RegExp('^' + HTMLTAG, 'i');
var reBackslashOrAmp = /[\\&]/;
var ESCAPABLE = '[!"#$%&\'()*+,./:;<=>?@[\\\\\\]^_`{|}~-]';
var reEntityOrEscapedChar = new RegExp('\\\\' + ESCAPABLE + '|' + ENTITY, 'gi');
var XMLSPECIAL = '[&<>"]';
var reXmlSpecial = new RegExp(XMLSPECIAL, 'g');
var reXmlSpecialOrEntity = new RegExp(ENTITY + '|' + XMLSPECIAL, 'gi');
var unescapeChar = function(s) {
if (s.charCodeAt(0) === C_BACKSLASH) {
return s.charAt(1);
} else {
return decodeHTML(s);
}
};
// Replace entities and backslash escapes with literal characters.
var unescapeString = function(s) {
if (reBackslashOrAmp.test(s)) {
return s.replace(reEntityOrEscapedChar, unescapeChar);
} else {
return s;
}
};
var normalizeURI = function(uri) {
try {
return encode(decode(uri));
}
catch(err) {
return uri;
}
};
var replaceUnsafeChar = function(s) {
switch (s) {
case '&':
return '&';
case '<':
return '<';
case '>':
return '>';
case '"':
return '"';
default:
return s;
}
};
var escapeXml = function(s, preserve_entities) {
if (reXmlSpecial.test(s)) {
if (preserve_entities) {
return s.replace(reXmlSpecialOrEntity, replaceUnsafeChar);
} else {
return s.replace(reXmlSpecial, replaceUnsafeChar);
}
} else {
return s;
}
};
module.exports = { unescapeString: unescapeString,
normalizeURI: normalizeURI,
escapeXml: escapeXml,
reHtmlTag: reHtmlTag,
OPENTAG: OPENTAG,
CLOSETAG: CLOSETAG,
ENTITY: ENTITY,
ESCAPABLE: ESCAPABLE
};
},{"entities":11,"mdurl/decode":19,"mdurl/encode":20}],3:[function(require,module,exports){
"use strict";
// derived from https://github.com/mathiasbynens/String.fromCodePoint
/*! http://mths.be/fromcodepoint v0.2.1 by @mathias */
if (String.fromCodePoint) {
module.exports = function (_) {
try {
return String.fromCodePoint(_);
} catch (e) {
if (e instanceof RangeError) {
return String.fromCharCode(0xFFFD);
}
throw e;
}
};
} else {
var stringFromCharCode = String.fromCharCode;