1//
   2// Blackfriday Markdown Processor
   3// Available at http://github.com/russross/blackfriday
   4//
   5// Copyright © 2011 Russ Ross <russ@russross.com>.
   6// Distributed under the Simplified BSD License.
   7// See README.md for details.
   8//
   9
  10//
  11// Unit tests for inline parsing
  12//
  13
  14package blackfriday
  15
  16import (
  17	"regexp"
  18	"testing"
  19
  20	"strings"
  21)
  22
  23func TestEmphasis(t *testing.T) {
  24	var tests = []string{
  25		"nothing inline\n",
  26		"<p>nothing inline</p>\n",
  27
  28		"simple *inline* test\n",
  29		"<p>simple <em>inline</em> test</p>\n",
  30
  31		"*at the* beginning\n",
  32		"<p><em>at the</em> beginning</p>\n",
  33
  34		"at the *end*\n",
  35		"<p>at the <em>end</em></p>\n",
  36
  37		"*try two* in *one line*\n",
  38		"<p><em>try two</em> in <em>one line</em></p>\n",
  39
  40		"over *two\nlines* test\n",
  41		"<p>over <em>two\nlines</em> test</p>\n",
  42
  43		"odd *number of* markers* here\n",
  44		"<p>odd <em>number of</em> markers* here</p>\n",
  45
  46		"odd *number\nof* markers* here\n",
  47		"<p>odd <em>number\nof</em> markers* here</p>\n",
  48
  49		"simple _inline_ test\n",
  50		"<p>simple <em>inline</em> test</p>\n",
  51
  52		"_at the_ beginning\n",
  53		"<p><em>at the</em> beginning</p>\n",
  54
  55		"at the _end_\n",
  56		"<p>at the <em>end</em></p>\n",
  57
  58		"_try two_ in _one line_\n",
  59		"<p><em>try two</em> in <em>one line</em></p>\n",
  60
  61		"over _two\nlines_ test\n",
  62		"<p>over <em>two\nlines</em> test</p>\n",
  63
  64		"odd _number of_ markers_ here\n",
  65		"<p>odd <em>number of</em> markers_ here</p>\n",
  66
  67		"odd _number\nof_ markers_ here\n",
  68		"<p>odd <em>number\nof</em> markers_ here</p>\n",
  69
  70		"mix of *markers_\n",
  71		"<p>mix of *markers_</p>\n",
  72
  73		"*What is A\\* algorithm?*\n",
  74		"<p><em>What is A* algorithm?</em></p>\n",
  75	}
  76	doTestsInline(t, tests)
  77}
  78
  79func TestReferenceOverride(t *testing.T) {
  80	var tests = []string{
  81		"test [ref1][]\n",
  82		"<p>test <a href=\"http://www.ref1.com/\" title=\"Reference 1\">ref1</a></p>\n",
  83
  84		"test [my ref][ref1]\n",
  85		"<p>test <a href=\"http://www.ref1.com/\" title=\"Reference 1\">my ref</a></p>\n",
  86
  87		"test [ref2][]\n\n[ref2]: http://www.leftalone.com/ (Ref left alone)\n",
  88		"<p>test <a href=\"http://www.overridden.com/\" title=\"Reference Overridden\">ref2</a></p>\n",
  89
  90		"test [ref3][]\n\n[ref3]: http://www.leftalone.com/ (Ref left alone)\n",
  91		"<p>test <a href=\"http://www.leftalone.com/\" title=\"Ref left alone\">ref3</a></p>\n",
  92
  93		"test [ref4][]\n\n[ref4]: http://zombo.com/ (You can do anything)\n",
  94		"<p>test [ref4][]</p>\n",
  95
  96		"test [!(*http.ServeMux).ServeHTTP][] complicated ref\n",
  97		"<p>test <a href=\"http://localhost:6060/pkg/net/http/#ServeMux.ServeHTTP\" title=\"ServeHTTP docs\">!(*http.ServeMux).ServeHTTP</a> complicated ref</p>\n",
  98
  99		"test [ref5][]\n",
 100		"<p>test <a href=\"http://www.ref5.com/\" title=\"Reference 5\">Moo</a></p>\n",
 101	}
 102	doTestsInlineParam(t, tests, TestParams{
 103		Options: Options{
 104			ReferenceOverride: func(reference string) (rv *Reference, overridden bool) {
 105				switch reference {
 106				case "ref1":
 107					// just an overriden reference exists without definition
 108					return &Reference{
 109						Link:  "http://www.ref1.com/",
 110						Title: "Reference 1"}, true
 111				case "ref2":
 112					// overridden exists and reference defined
 113					return &Reference{
 114						Link:  "http://www.overridden.com/",
 115						Title: "Reference Overridden"}, true
 116				case "ref3":
 117					// not overridden and reference defined
 118					return nil, false
 119				case "ref4":
 120					// overridden missing and defined
 121					return nil, true
 122				case "!(*http.ServeMux).ServeHTTP":
 123					return &Reference{
 124						Link:  "http://localhost:6060/pkg/net/http/#ServeMux.ServeHTTP",
 125						Title: "ServeHTTP docs"}, true
 126				case "ref5":
 127					return &Reference{
 128						Link:  "http://www.ref5.com/",
 129						Title: "Reference 5",
 130						Text:  "Moo",
 131					}, true
 132				}
 133				return nil, false
 134			},
 135		},
 136	})
 137}
 138
 139func TestStrong(t *testing.T) {
 140	var tests = []string{
 141		"nothing inline\n",
 142		"<p>nothing inline</p>\n",
 143
 144		"simple **inline** test\n",
 145		"<p>simple <strong>inline</strong> test</p>\n",
 146
 147		"**at the** beginning\n",
 148		"<p><strong>at the</strong> beginning</p>\n",
 149
 150		"at the **end**\n",
 151		"<p>at the <strong>end</strong></p>\n",
 152
 153		"**try two** in **one line**\n",
 154		"<p><strong>try two</strong> in <strong>one line</strong></p>\n",
 155
 156		"over **two\nlines** test\n",
 157		"<p>over <strong>two\nlines</strong> test</p>\n",
 158
 159		"odd **number of** markers** here\n",
 160		"<p>odd <strong>number of</strong> markers** here</p>\n",
 161
 162		"odd **number\nof** markers** here\n",
 163		"<p>odd <strong>number\nof</strong> markers** here</p>\n",
 164
 165		"simple __inline__ test\n",
 166		"<p>simple <strong>inline</strong> test</p>\n",
 167
 168		"__at the__ beginning\n",
 169		"<p><strong>at the</strong> beginning</p>\n",
 170
 171		"at the __end__\n",
 172		"<p>at the <strong>end</strong></p>\n",
 173
 174		"__try two__ in __one line__\n",
 175		"<p><strong>try two</strong> in <strong>one line</strong></p>\n",
 176
 177		"over __two\nlines__ test\n",
 178		"<p>over <strong>two\nlines</strong> test</p>\n",
 179
 180		"odd __number of__ markers__ here\n",
 181		"<p>odd <strong>number of</strong> markers__ here</p>\n",
 182
 183		"odd __number\nof__ markers__ here\n",
 184		"<p>odd <strong>number\nof</strong> markers__ here</p>\n",
 185
 186		"mix of **markers__\n",
 187		"<p>mix of **markers__</p>\n",
 188
 189		"**`/usr`** : this folder is named `usr`\n",
 190		"<p><strong><code>/usr</code></strong> : this folder is named <code>usr</code></p>\n",
 191
 192		"**`/usr`** :\n\n this folder is named `usr`\n",
 193		"<p><strong><code>/usr</code></strong> :</p>\n\n<p>this folder is named <code>usr</code></p>\n",
 194	}
 195	doTestsInline(t, tests)
 196}
 197
 198func TestEmphasisMix(t *testing.T) {
 199	var tests = []string{
 200		"***triple emphasis***\n",
 201		"<p><strong><em>triple emphasis</em></strong></p>\n",
 202
 203		"***triple\nemphasis***\n",
 204		"<p><strong><em>triple\nemphasis</em></strong></p>\n",
 205
 206		"___triple emphasis___\n",
 207		"<p><strong><em>triple emphasis</em></strong></p>\n",
 208
 209		"***triple emphasis___\n",
 210		"<p>***triple emphasis___</p>\n",
 211
 212		"*__triple emphasis__*\n",
 213		"<p><em><strong>triple emphasis</strong></em></p>\n",
 214
 215		"__*triple emphasis*__\n",
 216		"<p><strong><em>triple emphasis</em></strong></p>\n",
 217
 218		"**improper *nesting** is* bad\n",
 219		"<p><strong>improper *nesting</strong> is* bad</p>\n",
 220
 221		"*improper **nesting* is** bad\n",
 222		"<p>*improper <strong>nesting* is</strong> bad</p>\n",
 223	}
 224	doTestsInline(t, tests)
 225}
 226
 227func TestEmphasisLink(t *testing.T) {
 228	var tests = []string{
 229		"[first](before) *text[second] (inside)text* [third](after)\n",
 230		"<p><a href=\"before\">first</a> <em>text<a href=\"inside\">second</a>text</em> <a href=\"after\">third</a></p>\n",
 231
 232		"*incomplete [link] definition*\n",
 233		"<p><em>incomplete [link] definition</em></p>\n",
 234
 235		"*it's [emphasis*] (not link)\n",
 236		"<p><em>it's [emphasis</em>] (not link)</p>\n",
 237
 238		"*it's [emphasis*] and *[asterisk]\n",
 239		"<p><em>it's [emphasis</em>] and *[asterisk]</p>\n",
 240	}
 241	doTestsInline(t, tests)
 242}
 243
 244func TestStrikeThrough(t *testing.T) {
 245	var tests = []string{
 246		"nothing inline\n",
 247		"<p>nothing inline</p>\n",
 248
 249		"simple ~~inline~~ test\n",
 250		"<p>simple <del>inline</del> test</p>\n",
 251
 252		"~~at the~~ beginning\n",
 253		"<p><del>at the</del> beginning</p>\n",
 254
 255		"at the ~~end~~\n",
 256		"<p>at the <del>end</del></p>\n",
 257
 258		"~~try two~~ in ~~one line~~\n",
 259		"<p><del>try two</del> in <del>one line</del></p>\n",
 260
 261		"over ~~two\nlines~~ test\n",
 262		"<p>over <del>two\nlines</del> test</p>\n",
 263
 264		"odd ~~number of~~ markers~~ here\n",
 265		"<p>odd <del>number of</del> markers~~ here</p>\n",
 266
 267		"odd ~~number\nof~~ markers~~ here\n",
 268		"<p>odd <del>number\nof</del> markers~~ here</p>\n",
 269	}
 270	doTestsInline(t, tests)
 271}
 272
 273func TestCodeSpan(t *testing.T) {
 274	var tests = []string{
 275		"`source code`\n",
 276		"<p><code>source code</code></p>\n",
 277
 278		"` source code with spaces `\n",
 279		"<p><code>source code with spaces</code></p>\n",
 280
 281		"` source code with spaces `not here\n",
 282		"<p><code>source code with spaces</code>not here</p>\n",
 283
 284		"a `single marker\n",
 285		"<p>a `single marker</p>\n",
 286
 287		"a single multi-tick marker with ``` no text\n",
 288		"<p>a single multi-tick marker with ``` no text</p>\n",
 289
 290		"markers with ` ` a space\n",
 291		"<p>markers with  a space</p>\n",
 292
 293		"`source code` and a `stray\n",
 294		"<p><code>source code</code> and a `stray</p>\n",
 295
 296		"`source *with* _awkward characters_ in it`\n",
 297		"<p><code>source *with* _awkward characters_ in it</code></p>\n",
 298
 299		"`split over\ntwo lines`\n",
 300		"<p><code>split over\ntwo lines</code></p>\n",
 301
 302		"```multiple ticks``` for the marker\n",
 303		"<p><code>multiple ticks</code> for the marker</p>\n",
 304
 305		"```multiple ticks `with` ticks inside```\n",
 306		"<p><code>multiple ticks `with` ticks inside</code></p>\n",
 307	}
 308	doTestsInline(t, tests)
 309}
 310
 311func TestLineBreak(t *testing.T) {
 312	var tests = []string{
 313		"this line  \nhas a break\n",
 314		"<p>this line<br />\nhas a break</p>\n",
 315
 316		"this line \ndoes not\n",
 317		"<p>this line\ndoes not</p>\n",
 318
 319		"this line\\\ndoes not\n",
 320		"<p>this line\\\ndoes not</p>\n",
 321
 322		"this line\\ \ndoes not\n",
 323		"<p>this line\\\ndoes not</p>\n",
 324
 325		"this has an   \nextra space\n",
 326		"<p>this has an<br />\nextra space</p>\n",
 327	}
 328	doTestsInline(t, tests)
 329
 330	tests = []string{
 331		"this line  \nhas a break\n",
 332		"<p>this line<br />\nhas a break</p>\n",
 333
 334		"this line \ndoes not\n",
 335		"<p>this line\ndoes not</p>\n",
 336
 337		"this line\\\nhas a break\n",
 338		"<p>this line<br />\nhas a break</p>\n",
 339
 340		"this line\\ \ndoes not\n",
 341		"<p>this line\\\ndoes not</p>\n",
 342
 343		"this has an   \nextra space\n",
 344		"<p>this has an<br />\nextra space</p>\n",
 345	}
 346	doTestsInlineParam(t, tests, TestParams{Options: Options{
 347		Extensions: BackslashLineBreak}})
 348}
 349
 350func TestInlineLink(t *testing.T) {
 351	var tests = []string{
 352		"[foo](/bar/)\n",
 353		"<p><a href=\"/bar/\">foo</a></p>\n",
 354
 355		"[foo with a title](/bar/ \"title\")\n",
 356		"<p><a href=\"/bar/\" title=\"title\">foo with a title</a></p>\n",
 357
 358		"[foo with a title](/bar/\t\"title\")\n",
 359		"<p><a href=\"/bar/\" title=\"title\">foo with a title</a></p>\n",
 360
 361		"[foo with a title](/bar/ \"title\"  )\n",
 362		"<p><a href=\"/bar/\" title=\"title\">foo with a title</a></p>\n",
 363
 364		"[foo with a title](/bar/ title with no quotes)\n",
 365		"<p><a href=\"/bar/ title with no quotes\">foo with a title</a></p>\n",
 366
 367		"[foo]()\n",
 368		"<p>[foo]()</p>\n",
 369
 370		"![foo](/bar/)\n",
 371		"<p><img src=\"/bar/\" alt=\"foo\" /></p>\n",
 372
 373		"![foo with a title](/bar/ \"title\")\n",
 374		"<p><img src=\"/bar/\" alt=\"foo with a title\" title=\"title\" /></p>\n",
 375
 376		"![foo with a title](/bar/\t\"title\")\n",
 377		"<p><img src=\"/bar/\" alt=\"foo with a title\" title=\"title\" /></p>\n",
 378
 379		"![foo with a title](/bar/ \"title\"  )\n",
 380		"<p><img src=\"/bar/\" alt=\"foo with a title\" title=\"title\" /></p>\n",
 381
 382		"![foo with a title](/bar/ title with no quotes)\n",
 383		"<p><img src=\"/bar/ title with no quotes\" alt=\"foo with a title\" /></p>\n",
 384
 385		"![](img.jpg)\n",
 386		"<p><img src=\"img.jpg\" alt=\"\" /></p>\n",
 387
 388		"[link](url)\n",
 389		"<p><a href=\"url\">link</a></p>\n",
 390
 391		"![foo]()\n",
 392		"<p>![foo]()</p>\n",
 393
 394		"[a link]\t(/with_a_tab/)\n",
 395		"<p><a href=\"/with_a_tab/\">a link</a></p>\n",
 396
 397		"[a link]  (/with_spaces/)\n",
 398		"<p><a href=\"/with_spaces/\">a link</a></p>\n",
 399
 400		"[text (with) [[nested] (brackets)]](/url/)\n",
 401		"<p><a href=\"/url/\">text (with) [[nested] (brackets)]</a></p>\n",
 402
 403		"[text (with) [broken nested] (brackets)]](/url/)\n",
 404		"<p>[text (with) <a href=\"brackets\">broken nested</a>]](/url/)</p>\n",
 405
 406		"[text\nwith a newline](/link/)\n",
 407		"<p><a href=\"/link/\">text\nwith a newline</a></p>\n",
 408
 409		"[text in brackets] [followed](/by a link/)\n",
 410		"<p>[text in brackets] <a href=\"/by a link/\">followed</a></p>\n",
 411
 412		"[link with\\] a closing bracket](/url/)\n",
 413		"<p><a href=\"/url/\">link with] a closing bracket</a></p>\n",
 414
 415		"[link with\\[ an opening bracket](/url/)\n",
 416		"<p><a href=\"/url/\">link with[ an opening bracket</a></p>\n",
 417
 418		"[link with\\) a closing paren](/url/)\n",
 419		"<p><a href=\"/url/\">link with) a closing paren</a></p>\n",
 420
 421		"[link with\\( an opening paren](/url/)\n",
 422		"<p><a href=\"/url/\">link with( an opening paren</a></p>\n",
 423
 424		"[link](  with whitespace)\n",
 425		"<p><a href=\"with whitespace\">link</a></p>\n",
 426
 427		"[link](  with whitespace   )\n",
 428		"<p><a href=\"with whitespace\">link</a></p>\n",
 429
 430		"[![image](someimage)](with image)\n",
 431		"<p><a href=\"with image\"><img src=\"someimage\" alt=\"image\" /></a></p>\n",
 432
 433		"[link](url \"one quote)\n",
 434		"<p><a href=\"url &quot;one quote\">link</a></p>\n",
 435
 436		"[link](url 'one quote)\n",
 437		"<p><a href=\"url 'one quote\">link</a></p>\n",
 438
 439		"[link](<url>)\n",
 440		"<p><a href=\"url\">link</a></p>\n",
 441
 442		"[link & ampersand](/url/)\n",
 443		"<p><a href=\"/url/\">link &amp; ampersand</a></p>\n",
 444
 445		"[link &amp; ampersand](/url/)\n",
 446		"<p><a href=\"/url/\">link &amp; ampersand</a></p>\n",
 447
 448		"[link](/url/&query)\n",
 449		"<p><a href=\"/url/&amp;query\">link</a></p>\n",
 450
 451		"[[t]](/t)\n",
 452		"<p><a href=\"/t\">[t]</a></p>\n",
 453
 454		"[link](</>)\n",
 455		"<p><a href=\"/\">link</a></p>\n",
 456
 457		"[link](<./>)\n",
 458		"<p><a href=\"./\">link</a></p>\n",
 459
 460		"[link](<../>)\n",
 461		"<p><a href=\"../\">link</a></p>\n",
 462	}
 463	doLinkTestsInline(t, tests)
 464
 465}
 466
 467func TestRelAttrLink(t *testing.T) {
 468	var nofollowTests = []string{
 469		"[foo](http://bar.com/foo/)\n",
 470		"<p><a href=\"http://bar.com/foo/\" rel=\"nofollow\">foo</a></p>\n",
 471
 472		"[foo](/bar/)\n",
 473		"<p><a href=\"/bar/\">foo</a></p>\n",
 474
 475		"[foo](/)\n",
 476		"<p><a href=\"/\">foo</a></p>\n",
 477
 478		"[foo](./)\n",
 479		"<p><a href=\"./\">foo</a></p>\n",
 480
 481		"[foo](../)\n",
 482		"<p><a href=\"../\">foo</a></p>\n",
 483
 484		"[foo](../bar)\n",
 485		"<p><a href=\"../bar\">foo</a></p>\n",
 486	}
 487	doTestsInlineParam(t, nofollowTests, TestParams{
 488		HTMLFlags: Safelink | NofollowLinks,
 489	})
 490
 491	var noreferrerTests = []string{
 492		"[foo](http://bar.com/foo/)\n",
 493		"<p><a href=\"http://bar.com/foo/\" rel=\"noreferrer\">foo</a></p>\n",
 494
 495		"[foo](/bar/)\n",
 496		"<p><a href=\"/bar/\">foo</a></p>\n",
 497	}
 498	doTestsInlineParam(t, noreferrerTests, TestParams{
 499		HTMLFlags: Safelink | NoreferrerLinks,
 500	})
 501
 502	var nofollownoreferrerTests = []string{
 503		"[foo](http://bar.com/foo/)\n",
 504		"<p><a href=\"http://bar.com/foo/\" rel=\"nofollow noreferrer\">foo</a></p>\n",
 505
 506		"[foo](/bar/)\n",
 507		"<p><a href=\"/bar/\">foo</a></p>\n",
 508	}
 509	doTestsInlineParam(t, nofollownoreferrerTests, TestParams{
 510		HTMLFlags: Safelink | NofollowLinks | NoreferrerLinks,
 511	})
 512}
 513
 514func TestHrefTargetBlank(t *testing.T) {
 515	var tests = []string{
 516		// internal link
 517		"[foo](/bar/)\n",
 518		"<p><a href=\"/bar/\">foo</a></p>\n",
 519
 520		"[foo](/)\n",
 521		"<p><a href=\"/\">foo</a></p>\n",
 522
 523		"[foo](./)\n",
 524		"<p><a href=\"./\">foo</a></p>\n",
 525
 526		"[foo](./bar)\n",
 527		"<p><a href=\"./bar\">foo</a></p>\n",
 528
 529		"[foo](../)\n",
 530		"<p><a href=\"../\">foo</a></p>\n",
 531
 532		"[foo](../bar)\n",
 533		"<p><a href=\"../bar\">foo</a></p>\n",
 534
 535		"[foo](http://example.com)\n",
 536		"<p><a href=\"http://example.com\" target=\"_blank\">foo</a></p>\n",
 537	}
 538	doTestsInlineParam(t, tests, TestParams{
 539		HTMLFlags: Safelink | HrefTargetBlank,
 540	})
 541}
 542
 543func TestSafeInlineLink(t *testing.T) {
 544	var tests = []string{
 545		"[foo](/bar/)\n",
 546		"<p><a href=\"/bar/\">foo</a></p>\n",
 547
 548		"[foo](/)\n",
 549		"<p><a href=\"/\">foo</a></p>\n",
 550
 551		"[foo](./)\n",
 552		"<p><a href=\"./\">foo</a></p>\n",
 553
 554		"[foo](../)\n",
 555		"<p><a href=\"../\">foo</a></p>\n",
 556
 557		"[foo](http://bar/)\n",
 558		"<p><a href=\"http://bar/\">foo</a></p>\n",
 559
 560		"[foo](https://bar/)\n",
 561		"<p><a href=\"https://bar/\">foo</a></p>\n",
 562
 563		"[foo](ftp://bar/)\n",
 564		"<p><a href=\"ftp://bar/\">foo</a></p>\n",
 565
 566		"[foo](mailto://bar/)\n",
 567		"<p><a href=\"mailto://bar/\">foo</a></p>\n",
 568
 569		// Not considered safe
 570		"[foo](baz://bar/)\n",
 571		"<p><tt>foo</tt></p>\n",
 572	}
 573	doSafeTestsInline(t, tests)
 574}
 575
 576func TestReferenceLink(t *testing.T) {
 577	var tests = []string{
 578		"[link][ref]\n",
 579		"<p>[link][ref]</p>\n",
 580
 581		"[link][ref]\n   [ref]: /url/ \"title\"\n",
 582		"<p><a href=\"/url/\" title=\"title\">link</a></p>\n",
 583
 584		"[link][ref]\n   [ref]: /url/\n",
 585		"<p><a href=\"/url/\">link</a></p>\n",
 586
 587		"   [ref]: /url/\n",
 588		"",
 589
 590		"   [ref]: /url/\n[ref2]: /url/\n [ref3]: /url/\n",
 591		"",
 592
 593		"   [ref]: /url/\n[ref2]: /url/\n [ref3]: /url/\n    [4spaces]: /url/\n",
 594		"<pre><code>[4spaces]: /url/\n</code></pre>\n",
 595
 596		"[hmm](ref2)\n   [ref]: /url/\n[ref2]: /url/\n [ref3]: /url/\n",
 597		"<p><a href=\"ref2\">hmm</a></p>\n",
 598
 599		"[ref]\n",
 600		"<p>[ref]</p>\n",
 601
 602		"[ref]\n   [ref]: /url/ \"title\"\n",
 603		"<p><a href=\"/url/\" title=\"title\">ref</a></p>\n",
 604
 605		"[ref]\n   [ref]: ../url/ \"title\"\n",
 606		"<p><a href=\"../url/\" title=\"title\">ref</a></p>\n",
 607	}
 608	doLinkTestsInline(t, tests)
 609}
 610
 611func TestTags(t *testing.T) {
 612	var tests = []string{
 613		"a <span>tag</span>\n",
 614		"<p>a <span>tag</span></p>\n",
 615
 616		"<span>tag</span>\n",
 617		"<p><span>tag</span></p>\n",
 618
 619		"<span>mismatch</spandex>\n",
 620		"<p><span>mismatch</spandex></p>\n",
 621
 622		"a <singleton /> tag\n",
 623		"<p>a <singleton /> tag</p>\n",
 624	}
 625	doTestsInline(t, tests)
 626}
 627
 628func TestAutoLink(t *testing.T) {
 629	var tests = []string{
 630		"http://foo.com/\n",
 631		"<p><a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 632
 633		"1 http://foo.com/\n",
 634		"<p>1 <a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 635
 636		"1http://foo.com/\n",
 637		"<p>1<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 638
 639		"1.http://foo.com/\n",
 640		"<p>1.<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 641
 642		"1. http://foo.com/\n",
 643		"<ol>\n<li><a href=\"http://foo.com/\">http://foo.com/</a></li>\n</ol>\n",
 644
 645		"-http://foo.com/\n",
 646		"<p>-<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 647
 648		"- http://foo.com/\n",
 649		"<ul>\n<li><a href=\"http://foo.com/\">http://foo.com/</a></li>\n</ul>\n",
 650
 651		"_http://foo.com/\n",
 652		"<p>_<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 653
 654		"令狐http://foo.com/\n",
 655		"<p>令狐<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 656
 657		"令狐 http://foo.com/\n",
 658		"<p>令狐 <a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 659
 660		"ahttp://foo.com/\n",
 661		"<p>ahttp://foo.com/</p>\n",
 662
 663		">http://foo.com/\n",
 664		"<blockquote>\n<p><a href=\"http://foo.com/\">http://foo.com/</a></p>\n</blockquote>\n",
 665
 666		"> http://foo.com/\n",
 667		"<blockquote>\n<p><a href=\"http://foo.com/\">http://foo.com/</a></p>\n</blockquote>\n",
 668
 669		"go to <http://foo.com/>\n",
 670		"<p>go to <a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 671
 672		"a secure <https://link.org>\n",
 673		"<p>a secure <a href=\"https://link.org\">https://link.org</a></p>\n",
 674
 675		"an email <mailto:some@one.com>\n",
 676		"<p>an email <a href=\"mailto:some@one.com\">some@one.com</a></p>\n",
 677
 678		"an email <mailto://some@one.com>\n",
 679		"<p>an email <a href=\"mailto://some@one.com\">some@one.com</a></p>\n",
 680
 681		"an email <some@one.com>\n",
 682		"<p>an email <a href=\"mailto:some@one.com\">some@one.com</a></p>\n",
 683
 684		"an ftp <ftp://old.com>\n",
 685		"<p>an ftp <a href=\"ftp://old.com\">ftp://old.com</a></p>\n",
 686
 687		"an ftp <ftp:old.com>\n",
 688		"<p>an ftp <a href=\"ftp:old.com\">ftp:old.com</a></p>\n",
 689
 690		"a link with <http://new.com?query=foo&bar>\n",
 691		"<p>a link with <a href=\"http://new.com?query=foo&amp;bar\">" +
 692			"http://new.com?query=foo&amp;bar</a></p>\n",
 693
 694		"quotes mean a tag <http://new.com?query=\"foo\"&bar>\n",
 695		"<p>quotes mean a tag <http://new.com?query=\"foo\"&bar></p>\n",
 696
 697		"quotes mean a tag <http://new.com?query='foo'&bar>\n",
 698		"<p>quotes mean a tag <http://new.com?query='foo'&bar></p>\n",
 699
 700		"unless escaped <http://new.com?query=\\\"foo\\\"&bar>\n",
 701		"<p>unless escaped <a href=\"http://new.com?query=&quot;foo&quot;&amp;bar\">" +
 702			"http://new.com?query=&quot;foo&quot;&amp;bar</a></p>\n",
 703
 704		"even a > can be escaped <http://new.com?q=\\>&etc>\n",
 705		"<p>even a &gt; can be escaped <a href=\"http://new.com?q=&gt;&amp;etc\">" +
 706			"http://new.com?q=&gt;&amp;etc</a></p>\n",
 707
 708		"<a href=\"http://fancy.com\">http://fancy.com</a>\n",
 709		"<p><a href=\"http://fancy.com\">http://fancy.com</a></p>\n",
 710
 711		"<a href=\"http://fancy.com\">This is a link</a>\n",
 712		"<p><a href=\"http://fancy.com\">This is a link</a></p>\n",
 713
 714		"<a href=\"http://www.fancy.com/A_B.pdf\">http://www.fancy.com/A_B.pdf</a>\n",
 715		"<p><a href=\"http://www.fancy.com/A_B.pdf\">http://www.fancy.com/A_B.pdf</a></p>\n",
 716
 717		"(<a href=\"http://www.fancy.com/A_B\">http://www.fancy.com/A_B</a> (\n",
 718		"<p>(<a href=\"http://www.fancy.com/A_B\">http://www.fancy.com/A_B</a> (</p>\n",
 719
 720		"(<a href=\"http://www.fancy.com/A_B\">http://www.fancy.com/A_B</a> (part two: <a href=\"http://www.fancy.com/A_B\">http://www.fancy.com/A_B</a>)).\n",
 721		"<p>(<a href=\"http://www.fancy.com/A_B\">http://www.fancy.com/A_B</a> (part two: <a href=\"http://www.fancy.com/A_B\">http://www.fancy.com/A_B</a>)).</p>\n",
 722
 723		"http://www.foo.com<br />\n",
 724		"<p><a href=\"http://www.foo.com\">http://www.foo.com</a><br /></p>\n",
 725
 726		"http://foo.com/viewtopic.php?f=18&amp;t=297",
 727		"<p><a href=\"http://foo.com/viewtopic.php?f=18&amp;t=297\">http://foo.com/viewtopic.php?f=18&amp;t=297</a></p>\n",
 728
 729		"http://foo.com/viewtopic.php?param=&quot;18&quot;zz",
 730		"<p><a href=\"http://foo.com/viewtopic.php?param=&quot;18&quot;zz\">http://foo.com/viewtopic.php?param=&quot;18&quot;zz</a></p>\n",
 731
 732		"http://foo.com/viewtopic.php?param=&quot;18&quot;",
 733		"<p><a href=\"http://foo.com/viewtopic.php?param=&quot;18&quot;\">http://foo.com/viewtopic.php?param=&quot;18&quot;</a></p>\n",
 734
 735		"<a href=\"https://fancy.com\">https://fancy.com</a>\n",
 736		"<p><a href=\"https://fancy.com\">https://fancy.com</a></p>\n",
 737	}
 738	doLinkTestsInline(t, tests)
 739}
 740
 741var footnoteTests = []string{
 742	"testing footnotes.[^a]\n\n[^a]: This is the note\n",
 743	`<p>testing footnotes.<sup class="footnote-ref" id="fnref:a"><a rel="footnote" href="#fn:a">1</a></sup></p>
 744
 745<div class="footnotes">
 746
 747<hr />
 748
 749<ol>
 750<li id="fn:a">This is the note</li>
 751</ol>
 752
 753</div>
 754`,
 755
 756	`testing long[^b] notes.
 757
 758[^b]: Paragraph 1
 759
 760	Paragraph 2
 761
 762	` + "```\n\tsome code\n\t```" + `
 763
 764	Paragraph 3
 765
 766No longer in the footnote
 767`,
 768	`<p>testing long<sup class="footnote-ref" id="fnref:b"><a rel="footnote" href="#fn:b">1</a></sup> notes.</p>
 769
 770<p>No longer in the footnote</p>
 771
 772<div class="footnotes">
 773
 774<hr />
 775
 776<ol>
 777<li id="fn:b"><p>Paragraph 1</p>
 778
 779<p>Paragraph 2</p>
 780
 781<p><code>
 782some code
 783</code></p>
 784
 785<p>Paragraph 3</p></li>
 786</ol>
 787
 788</div>
 789`,
 790
 791	`testing[^c] multiple[^d] notes.
 792
 793[^c]: this is [note] c
 794
 795
 796omg
 797
 798[^d]: this is note d
 799
 800what happens here
 801
 802[note]: /link/c
 803
 804`,
 805	`<p>testing<sup class="footnote-ref" id="fnref:c"><a rel="footnote" href="#fn:c">1</a></sup> multiple<sup class="footnote-ref" id="fnref:d"><a rel="footnote" href="#fn:d">2</a></sup> notes.</p>
 806
 807<p>omg</p>
 808
 809<p>what happens here</p>
 810
 811<div class="footnotes">
 812
 813<hr />
 814
 815<ol>
 816<li id="fn:c">this is <a href="/link/c">note</a> c</li>
 817
 818<li id="fn:d">this is note d</li>
 819</ol>
 820
 821</div>
 822`,
 823
 824	"testing inline^[this is the note] notes.\n",
 825	`<p>testing inline<sup class="footnote-ref" id="fnref:this-is-the-note"><a rel="footnote" href="#fn:this-is-the-note">1</a></sup> notes.</p>
 826
 827<div class="footnotes">
 828
 829<hr />
 830
 831<ol>
 832<li id="fn:this-is-the-note">this is the note</li>
 833</ol>
 834
 835</div>
 836`,
 837
 838	"testing multiple[^1] types^[inline note] of notes[^2]\n\n[^2]: the second deferred note\n[^1]: the first deferred note\n\n\twhich happens to be a block\n",
 839	`<p>testing multiple<sup class="footnote-ref" id="fnref:1"><a rel="footnote" href="#fn:1">1</a></sup> types<sup class="footnote-ref" id="fnref:inline-note"><a rel="footnote" href="#fn:inline-note">2</a></sup> of notes<sup class="footnote-ref" id="fnref:2"><a rel="footnote" href="#fn:2">3</a></sup></p>
 840
 841<div class="footnotes">
 842
 843<hr />
 844
 845<ol>
 846<li id="fn:1"><p>the first deferred note</p>
 847
 848<p>which happens to be a block</p></li>
 849
 850<li id="fn:inline-note">inline note</li>
 851
 852<li id="fn:2">the second deferred note</li>
 853</ol>
 854
 855</div>
 856`,
 857
 858	`This is a footnote[^1]^[and this is an inline footnote]
 859
 860[^1]: the footnote text.
 861
 862    may be multiple paragraphs.
 863`,
 864	`<p>This is a footnote<sup class="footnote-ref" id="fnref:1"><a rel="footnote" href="#fn:1">1</a></sup><sup class="footnote-ref" id="fnref:and-this-is-an-i"><a rel="footnote" href="#fn:and-this-is-an-i">2</a></sup></p>
 865
 866<div class="footnotes">
 867
 868<hr />
 869
 870<ol>
 871<li id="fn:1"><p>the footnote text.</p>
 872
 873<p>may be multiple paragraphs.</p></li>
 874
 875<li id="fn:and-this-is-an-i">and this is an inline footnote</li>
 876</ol>
 877
 878</div>
 879`,
 880
 881	"empty footnote[^]\n\n[^]: fn text",
 882	"<p>empty footnote<sup class=\"footnote-ref\" id=\"fnref:\"><a rel=\"footnote\" href=\"#fn:\">1</a></sup></p>\n\n<div class=\"footnotes\">\n\n<hr />\n\n<ol>\n<li id=\"fn:\">fn text</li>\n</ol>\n\n</div>\n",
 883
 884	"Some text.[^note1]\n\n[^note1]: fn1",
 885	"<p>Some text.<sup class=\"footnote-ref\" id=\"fnref:note1\"><a rel=\"footnote\" href=\"#fn:note1\">1</a></sup></p>\n\n<div class=\"footnotes\">\n\n<hr />\n\n<ol>\n<li id=\"fn:note1\">fn1</li>\n</ol>\n\n</div>\n",
 886
 887	"Some text.[^note1][^note2]\n\n[^note1]: fn1\n[^note2]: fn2\n",
 888	"<p>Some text.<sup class=\"footnote-ref\" id=\"fnref:note1\"><a rel=\"footnote\" href=\"#fn:note1\">1</a></sup><sup class=\"footnote-ref\" id=\"fnref:note2\"><a rel=\"footnote\" href=\"#fn:note2\">2</a></sup></p>\n\n<div class=\"footnotes\">\n\n<hr />\n\n<ol>\n<li id=\"fn:note1\">fn1</li>\n\n<li id=\"fn:note2\">fn2</li>\n</ol>\n\n</div>\n",
 889
 890	`Bla bla [^1] [WWW][w3]
 891
 892[^1]: This is a footnote
 893
 894[w3]: http://www.w3.org/
 895`,
 896	`<p>Bla bla <sup class="footnote-ref" id="fnref:1"><a rel="footnote" href="#fn:1">1</a></sup> <a href="http://www.w3.org/">WWW</a></p>
 897
 898<div class="footnotes">
 899
 900<hr />
 901
 902<ol>
 903<li id="fn:1">This is a footnote</li>
 904</ol>
 905
 906</div>
 907`,
 908
 909	`This is exciting![^fn1]
 910
 911[^fn1]: Fine print
 912`,
 913	`<p>This is exciting!<sup class="footnote-ref" id="fnref:fn1"><a rel="footnote" href="#fn:fn1">1</a></sup></p>
 914
 915<div class="footnotes">
 916
 917<hr />
 918
 919<ol>
 920<li id="fn:fn1">Fine print</li>
 921</ol>
 922
 923</div>
 924`,
 925}
 926
 927func TestFootnotes(t *testing.T) {
 928	doTestsInlineParam(t, footnoteTests, TestParams{
 929		Options: Options{Extensions: Footnotes},
 930	})
 931}
 932
 933func TestFootnotesWithParameters(t *testing.T) {
 934	tests := make([]string, len(footnoteTests))
 935
 936	prefix := "testPrefix"
 937	returnText := "ret"
 938	re := regexp.MustCompile(`(?ms)<li id="fn:(\S+?)">(.*?)</li>`)
 939
 940	// Transform the test expectations to match the parameters we're using.
 941	for i, test := range footnoteTests {
 942		if i%2 == 1 {
 943			test = strings.Replace(test, "fn:", "fn:"+prefix, -1)
 944			test = strings.Replace(test, "fnref:", "fnref:"+prefix, -1)
 945			test = re.ReplaceAllString(test, `<li id="fn:$1">$2 <a class="footnote-return" href="#fnref:$1">ret</a></li>`)
 946		}
 947		tests[i] = test
 948	}
 949
 950	params := HTMLRendererParameters{
 951		FootnoteAnchorPrefix:       prefix,
 952		FootnoteReturnLinkContents: returnText,
 953	}
 954
 955	doTestsInlineParam(t, tests, TestParams{
 956		Options:                Options{Extensions: Footnotes},
 957		HTMLFlags:              FootnoteReturnLinks,
 958		HTMLRendererParameters: params,
 959	})
 960}
 961
 962func TestNestedFootnotes(t *testing.T) {
 963	var tests = []string{
 964		`Paragraph.[^fn1]
 965
 966[^fn1]:
 967  Asterisk[^fn2]
 968
 969[^fn2]:
 970  Obelisk`,
 971		`<p>Paragraph.<sup class="footnote-ref" id="fnref:fn1"><a rel="footnote" href="#fn:fn1">1</a></sup></p>
 972
 973<div class="footnotes">
 974
 975<hr />
 976
 977<ol>
 978<li id="fn:fn1">Asterisk<sup class="footnote-ref" id="fnref:fn2"><a rel="footnote" href="#fn:fn2">2</a></sup></li>
 979
 980<li id="fn:fn2">Obelisk</li>
 981</ol>
 982
 983</div>
 984`,
 985	}
 986	doTestsInlineParam(t, tests, TestParams{Options: Options{Extensions: Footnotes}})
 987}
 988
 989func TestInlineComments(t *testing.T) {
 990	var tests = []string{
 991		"Hello <!-- there ->\n",
 992		"<p>Hello &lt;!&mdash; there &ndash;&gt;</p>\n",
 993
 994		"Hello <!-- there -->\n",
 995		"<p>Hello <!-- there --></p>\n",
 996
 997		"Hello <!-- there -->",
 998		"<p>Hello <!-- there --></p>\n",
 999
1000		"Hello <!---->\n",
1001		"<p>Hello <!----></p>\n",
1002
1003		"Hello <!-- there -->\na",
1004		"<p>Hello <!-- there -->\na</p>\n",
1005
1006		"* list <!-- item -->\n",
1007		"<ul>\n<li>list <!-- item --></li>\n</ul>\n",
1008
1009		"<!-- Front --> comment\n",
1010		"<p><!-- Front --> comment</p>\n",
1011
1012		"blahblah\n<!--- foo -->\nrhubarb\n",
1013		"<p>blahblah\n<!--- foo -->\nrhubarb</p>\n",
1014	}
1015	doTestsInlineParam(t, tests, TestParams{
1016		Options: Options{
1017			Extensions: Smartypants | SmartypantsDashes,
1018		},
1019	})
1020}
1021
1022func TestSmartDoubleQuotes(t *testing.T) {
1023	var tests = []string{
1024		"this should be normal \"quoted\" text.\n",
1025		"<p>this should be normal &ldquo;quoted&rdquo; text.</p>\n",
1026		"this \" single double\n",
1027		"<p>this &ldquo; single double</p>\n",
1028		"two pair of \"some\" quoted \"text\".\n",
1029		"<p>two pair of &ldquo;some&rdquo; quoted &ldquo;text&rdquo;.</p>\n"}
1030
1031	doTestsInlineParam(t, tests, TestParams{
1032		Options: Options{
1033			Extensions: Smartypants,
1034		},
1035	})
1036}
1037
1038func TestSmartAngledDoubleQuotes(t *testing.T) {
1039	var tests = []string{
1040		"this should be angled \"quoted\" text.\n",
1041		"<p>this should be angled &laquo;quoted&raquo; text.</p>\n",
1042		"this \" single double\n",
1043		"<p>this &laquo; single double</p>\n",
1044		"two pair of \"some\" quoted \"text\".\n",
1045		"<p>two pair of &laquo;some&raquo; quoted &laquo;text&raquo;.</p>\n"}
1046
1047	doTestsInlineParam(t, tests, TestParams{
1048		Options: Options{
1049			Extensions: Smartypants | SmartypantsAngledQuotes,
1050		},
1051	})
1052}
1053
1054func TestSmartFractions(t *testing.T) {
1055	var tests = []string{
1056		"1/2, 1/4 and 3/4; 1/4th and 3/4ths\n",
1057		"<p>&frac12;, &frac14; and &frac34;; &frac14;th and &frac34;ths</p>\n",
1058		"1/2/2015, 1/4/2015, 3/4/2015; 2015/1/2, 2015/1/4, 2015/3/4.\n",
1059		"<p>1/2/2015, 1/4/2015, 3/4/2015; 2015/1/2, 2015/1/4, 2015/3/4.</p>\n"}
1060
1061	doTestsInlineParam(t, tests, TestParams{
1062		Options: Options{
1063			Extensions: Smartypants,
1064		},
1065	})
1066
1067	tests = []string{
1068		"1/2, 2/3, 81/100 and 1000000/1048576.\n",
1069		"<p><sup>1</sup>&frasl;<sub>2</sub>, <sup>2</sup>&frasl;<sub>3</sub>, <sup>81</sup>&frasl;<sub>100</sub> and <sup>1000000</sup>&frasl;<sub>1048576</sub>.</p>\n",
1070		"1/2/2015, 1/4/2015, 3/4/2015; 2015/1/2, 2015/1/4, 2015/3/4.\n",
1071		"<p>1/2/2015, 1/4/2015, 3/4/2015; 2015/1/2, 2015/1/4, 2015/3/4.</p>\n"}
1072
1073	doTestsInlineParam(t, tests, TestParams{
1074		Options: Options{
1075			Extensions: Smartypants | SmartypantsFractions,
1076		},
1077	})
1078}
1079
1080func TestDisableSmartDashes(t *testing.T) {
1081	doTestsInlineParam(t, []string{
1082		"foo - bar\n",
1083		"<p>foo - bar</p>\n",
1084		"foo -- bar\n",
1085		"<p>foo -- bar</p>\n",
1086		"foo --- bar\n",
1087		"<p>foo --- bar</p>\n",
1088	}, TestParams{})
1089	doTestsInlineParam(t, []string{
1090		"foo - bar\n",
1091		"<p>foo &ndash; bar</p>\n",
1092		"foo -- bar\n",
1093		"<p>foo &mdash; bar</p>\n",
1094		"foo --- bar\n",
1095		"<p>foo &mdash;&ndash; bar</p>\n",
1096	}, TestParams{Options: Options{Extensions: Smartypants | SmartypantsDashes}})
1097	doTestsInlineParam(t, []string{
1098		"foo - bar\n",
1099		"<p>foo - bar</p>\n",
1100		"foo -- bar\n",
1101		"<p>foo &ndash; bar</p>\n",
1102		"foo --- bar\n",
1103		"<p>foo &mdash; bar</p>\n",
1104	}, TestParams{
1105		Options: Options{
1106			Extensions: Smartypants | SmartypantsLatexDashes | SmartypantsDashes,
1107		},
1108	})
1109	doTestsInlineParam(t, []string{
1110		"foo - bar\n",
1111		"<p>foo - bar</p>\n",
1112		"foo -- bar\n",
1113		"<p>foo -- bar</p>\n",
1114		"foo --- bar\n",
1115		"<p>foo --- bar</p>\n",
1116	}, TestParams{
1117		Options: Options{Extensions: Smartypants | SmartypantsLatexDashes}})
1118}