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 runMarkdownInline(input string, opts Options, htmlFlags int, params HtmlRendererParameters) string {
  24	opts.Extensions |= EXTENSION_AUTOLINK
  25	opts.Extensions |= EXTENSION_STRIKETHROUGH
  26
  27	htmlFlags |= HTML_USE_XHTML
  28
  29	renderer := HtmlRendererWithParameters(htmlFlags, "", "", params)
  30
  31	return string(MarkdownOptions([]byte(input), renderer, opts))
  32}
  33
  34func doTestsInline(t *testing.T, tests []string) {
  35	doTestsInlineParam(t, tests, Options{}, 0, HtmlRendererParameters{})
  36}
  37
  38func doLinkTestsInline(t *testing.T, tests []string) {
  39	doTestsInline(t, tests)
  40
  41	prefix := "http://localhost"
  42	params := HtmlRendererParameters{AbsolutePrefix: prefix}
  43	transformTests := transformLinks(tests, prefix)
  44	doTestsInlineParam(t, transformTests, Options{}, 0, params)
  45	doTestsInlineParam(t, transformTests, Options{}, commonHtmlFlags, params)
  46}
  47
  48func doSafeTestsInline(t *testing.T, tests []string) {
  49	doTestsInlineParam(t, tests, Options{}, HTML_SAFELINK, HtmlRendererParameters{})
  50
  51	// All the links in this test should not have the prefix appended, so
  52	// just rerun it with different parameters and the same expectations.
  53	prefix := "http://localhost"
  54	params := HtmlRendererParameters{AbsolutePrefix: prefix}
  55	transformTests := transformLinks(tests, prefix)
  56	doTestsInlineParam(t, transformTests, Options{}, HTML_SAFELINK, params)
  57}
  58
  59func doTestsInlineParam(t *testing.T, tests []string, opts Options, htmlFlags int,
  60	params HtmlRendererParameters) {
  61	// catch and report panics
  62	var candidate string
  63	/*
  64		defer func() {
  65			if err := recover(); err != nil {
  66				t.Errorf("\npanic while processing [%#v] (%v)\n", candidate, err)
  67			}
  68		}()
  69	*/
  70
  71	for i := 0; i+1 < len(tests); i += 2 {
  72		input := tests[i]
  73		candidate = input
  74		expected := tests[i+1]
  75		actual := runMarkdownInline(candidate, opts, htmlFlags, params)
  76		if actual != expected {
  77			t.Errorf("\nInput   [%#v]\nExpected[%#v]\nActual  [%#v]",
  78				candidate, expected, actual)
  79		}
  80
  81		// now test every substring to stress test bounds checking
  82		if !testing.Short() {
  83			for start := 0; start < len(input); start++ {
  84				for end := start + 1; end <= len(input); end++ {
  85					candidate = input[start:end]
  86					_ = runMarkdownInline(candidate, opts, htmlFlags, params)
  87				}
  88			}
  89		}
  90	}
  91}
  92
  93func transformLinks(tests []string, prefix string) []string {
  94	newTests := make([]string, len(tests))
  95	anchorRe := regexp.MustCompile(`<a href="/(.*?)"`)
  96	imgRe := regexp.MustCompile(`<img src="/(.*?)"`)
  97	for i, test := range tests {
  98		if i%2 == 1 {
  99			test = anchorRe.ReplaceAllString(test, `<a href="`+prefix+`/$1"`)
 100			test = imgRe.ReplaceAllString(test, `<img src="`+prefix+`/$1"`)
 101		}
 102		newTests[i] = test
 103	}
 104	return newTests
 105}
 106
 107func TestEmphasis(t *testing.T) {
 108	var tests = []string{
 109		"nothing inline\n",
 110		"<p>nothing inline</p>\n",
 111
 112		"simple *inline* test\n",
 113		"<p>simple <em>inline</em> test</p>\n",
 114
 115		"*at the* beginning\n",
 116		"<p><em>at the</em> beginning</p>\n",
 117
 118		"at the *end*\n",
 119		"<p>at the <em>end</em></p>\n",
 120
 121		"*try two* in *one line*\n",
 122		"<p><em>try two</em> in <em>one line</em></p>\n",
 123
 124		"over *two\nlines* test\n",
 125		"<p>over <em>two\nlines</em> test</p>\n",
 126
 127		"odd *number of* markers* here\n",
 128		"<p>odd <em>number of</em> markers* here</p>\n",
 129
 130		"odd *number\nof* markers* here\n",
 131		"<p>odd <em>number\nof</em> markers* here</p>\n",
 132
 133		"simple _inline_ test\n",
 134		"<p>simple <em>inline</em> test</p>\n",
 135
 136		"_at the_ beginning\n",
 137		"<p><em>at the</em> beginning</p>\n",
 138
 139		"at the _end_\n",
 140		"<p>at the <em>end</em></p>\n",
 141
 142		"_try two_ in _one line_\n",
 143		"<p><em>try two</em> in <em>one line</em></p>\n",
 144
 145		"over _two\nlines_ test\n",
 146		"<p>over <em>two\nlines</em> test</p>\n",
 147
 148		"odd _number of_ markers_ here\n",
 149		"<p>odd <em>number of</em> markers_ here</p>\n",
 150
 151		"odd _number\nof_ markers_ here\n",
 152		"<p>odd <em>number\nof</em> markers_ here</p>\n",
 153
 154		"mix of *markers_\n",
 155		"<p>mix of *markers_</p>\n",
 156
 157		"*What is A\\* algorithm?*\n",
 158		"<p><em>What is A* algorithm?</em></p>\n",
 159	}
 160	doTestsInline(t, tests)
 161}
 162
 163func TestReferenceOverride(t *testing.T) {
 164	var tests = []string{
 165		"test [ref1][]\n",
 166		"<p>test <a href=\"http://www.ref1.com/\" title=\"Reference 1\">ref1</a></p>\n",
 167
 168		"test [my ref][ref1]\n",
 169		"<p>test <a href=\"http://www.ref1.com/\" title=\"Reference 1\">my ref</a></p>\n",
 170
 171		"test [ref2][]\n\n[ref2]: http://www.leftalone.com/ (Ref left alone)\n",
 172		"<p>test <a href=\"http://www.overridden.com/\" title=\"Reference Overridden\">ref2</a></p>\n",
 173
 174		"test [ref3][]\n\n[ref3]: http://www.leftalone.com/ (Ref left alone)\n",
 175		"<p>test <a href=\"http://www.leftalone.com/\" title=\"Ref left alone\">ref3</a></p>\n",
 176
 177		"test [ref4][]\n\n[ref4]: http://zombo.com/ (You can do anything)\n",
 178		"<p>test [ref4][]</p>\n",
 179
 180		"test [!(*http.ServeMux).ServeHTTP][] complicated ref\n",
 181		"<p>test <a href=\"http://localhost:6060/pkg/net/http/#ServeMux.ServeHTTP\" title=\"ServeHTTP docs\">!(*http.ServeMux).ServeHTTP</a> complicated ref</p>\n",
 182
 183		"test [ref5][]\n",
 184		"<p>test <a href=\"http://www.ref5.com/\" title=\"Reference 5\">Moo</a></p>\n",
 185	}
 186	doTestsInlineParam(t, tests, Options{
 187		ReferenceOverride: func(reference string) (rv *Reference, overridden bool) {
 188			switch reference {
 189			case "ref1":
 190				// just an overriden reference exists without definition
 191				return &Reference{
 192					Link:  "http://www.ref1.com/",
 193					Title: "Reference 1"}, true
 194			case "ref2":
 195				// overridden exists and reference defined
 196				return &Reference{
 197					Link:  "http://www.overridden.com/",
 198					Title: "Reference Overridden"}, true
 199			case "ref3":
 200				// not overridden and reference defined
 201				return nil, false
 202			case "ref4":
 203				// overridden missing and defined
 204				return nil, true
 205			case "!(*http.ServeMux).ServeHTTP":
 206				return &Reference{
 207					Link:  "http://localhost:6060/pkg/net/http/#ServeMux.ServeHTTP",
 208					Title: "ServeHTTP docs"}, true
 209			case "ref5":
 210				return &Reference{
 211					Link:  "http://www.ref5.com/",
 212					Title: "Reference 5",
 213					Text:  "Moo",
 214				}, true
 215			}
 216			return nil, false
 217		}}, 0, HtmlRendererParameters{})
 218}
 219
 220func TestStrong(t *testing.T) {
 221	var tests = []string{
 222		"nothing inline\n",
 223		"<p>nothing inline</p>\n",
 224
 225		"simple **inline** test\n",
 226		"<p>simple <strong>inline</strong> test</p>\n",
 227
 228		"**at the** beginning\n",
 229		"<p><strong>at the</strong> beginning</p>\n",
 230
 231		"at the **end**\n",
 232		"<p>at the <strong>end</strong></p>\n",
 233
 234		"**try two** in **one line**\n",
 235		"<p><strong>try two</strong> in <strong>one line</strong></p>\n",
 236
 237		"over **two\nlines** test\n",
 238		"<p>over <strong>two\nlines</strong> test</p>\n",
 239
 240		"odd **number of** markers** here\n",
 241		"<p>odd <strong>number of</strong> markers** here</p>\n",
 242
 243		"odd **number\nof** markers** here\n",
 244		"<p>odd <strong>number\nof</strong> markers** here</p>\n",
 245
 246		"simple __inline__ test\n",
 247		"<p>simple <strong>inline</strong> test</p>\n",
 248
 249		"__at the__ beginning\n",
 250		"<p><strong>at the</strong> beginning</p>\n",
 251
 252		"at the __end__\n",
 253		"<p>at the <strong>end</strong></p>\n",
 254
 255		"__try two__ in __one line__\n",
 256		"<p><strong>try two</strong> in <strong>one line</strong></p>\n",
 257
 258		"over __two\nlines__ test\n",
 259		"<p>over <strong>two\nlines</strong> test</p>\n",
 260
 261		"odd __number of__ markers__ here\n",
 262		"<p>odd <strong>number of</strong> markers__ here</p>\n",
 263
 264		"odd __number\nof__ markers__ here\n",
 265		"<p>odd <strong>number\nof</strong> markers__ here</p>\n",
 266
 267		"mix of **markers__\n",
 268		"<p>mix of **markers__</p>\n",
 269
 270		"**`/usr`** : this folder is named `usr`\n",
 271		"<p><strong><code>/usr</code></strong> : this folder is named <code>usr</code></p>\n",
 272
 273		"**`/usr`** :\n\n this folder is named `usr`\n",
 274		"<p><strong><code>/usr</code></strong> :</p>\n\n<p>this folder is named <code>usr</code></p>\n",
 275	}
 276	doTestsInline(t, tests)
 277}
 278
 279func TestEmphasisMix(t *testing.T) {
 280	var tests = []string{
 281		"***triple emphasis***\n",
 282		"<p><strong><em>triple emphasis</em></strong></p>\n",
 283
 284		"***triple\nemphasis***\n",
 285		"<p><strong><em>triple\nemphasis</em></strong></p>\n",
 286
 287		"___triple emphasis___\n",
 288		"<p><strong><em>triple emphasis</em></strong></p>\n",
 289
 290		"***triple emphasis___\n",
 291		"<p>***triple emphasis___</p>\n",
 292
 293		"*__triple emphasis__*\n",
 294		"<p><em><strong>triple emphasis</strong></em></p>\n",
 295
 296		"__*triple emphasis*__\n",
 297		"<p><strong><em>triple emphasis</em></strong></p>\n",
 298
 299		"**improper *nesting** is* bad\n",
 300		"<p><strong>improper *nesting</strong> is* bad</p>\n",
 301
 302		"*improper **nesting* is** bad\n",
 303		"<p>*improper <strong>nesting* is</strong> bad</p>\n",
 304	}
 305	doTestsInline(t, tests)
 306}
 307
 308func TestEmphasisLink(t *testing.T) {
 309	var tests = []string{
 310		"[first](before) *text[second] (inside)text* [third](after)\n",
 311		"<p><a href=\"before\">first</a> <em>text<a href=\"inside\">second</a>text</em> <a href=\"after\">third</a></p>\n",
 312
 313		"*incomplete [link] definition*\n",
 314		"<p><em>incomplete [link] definition</em></p>\n",
 315
 316		"*it's [emphasis*] (not link)\n",
 317		"<p><em>it's [emphasis</em>] (not link)</p>\n",
 318
 319		"*it's [emphasis*] and *[asterisk]\n",
 320		"<p><em>it's [emphasis</em>] and *[asterisk]</p>\n",
 321	}
 322	doTestsInline(t, tests)
 323}
 324
 325func TestStrikeThrough(t *testing.T) {
 326	var tests = []string{
 327		"nothing inline\n",
 328		"<p>nothing inline</p>\n",
 329
 330		"simple ~~inline~~ test\n",
 331		"<p>simple <del>inline</del> test</p>\n",
 332
 333		"~~at the~~ beginning\n",
 334		"<p><del>at the</del> beginning</p>\n",
 335
 336		"at the ~~end~~\n",
 337		"<p>at the <del>end</del></p>\n",
 338
 339		"~~try two~~ in ~~one line~~\n",
 340		"<p><del>try two</del> in <del>one line</del></p>\n",
 341
 342		"over ~~two\nlines~~ test\n",
 343		"<p>over <del>two\nlines</del> test</p>\n",
 344
 345		"odd ~~number of~~ markers~~ here\n",
 346		"<p>odd <del>number of</del> markers~~ here</p>\n",
 347
 348		"odd ~~number\nof~~ markers~~ here\n",
 349		"<p>odd <del>number\nof</del> markers~~ here</p>\n",
 350	}
 351	doTestsInline(t, tests)
 352}
 353
 354func TestCodeSpan(t *testing.T) {
 355	var tests = []string{
 356		"`source code`\n",
 357		"<p><code>source code</code></p>\n",
 358
 359		"` source code with spaces `\n",
 360		"<p><code>source code with spaces</code></p>\n",
 361
 362		"` source code with spaces `not here\n",
 363		"<p><code>source code with spaces</code>not here</p>\n",
 364
 365		"a `single marker\n",
 366		"<p>a `single marker</p>\n",
 367
 368		"a single multi-tick marker with ``` no text\n",
 369		"<p>a single multi-tick marker with ``` no text</p>\n",
 370
 371		"markers with ` ` a space\n",
 372		"<p>markers with  a space</p>\n",
 373
 374		"`source code` and a `stray\n",
 375		"<p><code>source code</code> and a `stray</p>\n",
 376
 377		"`source *with* _awkward characters_ in it`\n",
 378		"<p><code>source *with* _awkward characters_ in it</code></p>\n",
 379
 380		"`split over\ntwo lines`\n",
 381		"<p><code>split over\ntwo lines</code></p>\n",
 382
 383		"```multiple ticks``` for the marker\n",
 384		"<p><code>multiple ticks</code> for the marker</p>\n",
 385
 386		"```multiple ticks `with` ticks inside```\n",
 387		"<p><code>multiple ticks `with` ticks inside</code></p>\n",
 388	}
 389	doTestsInline(t, tests)
 390}
 391
 392func TestLineBreak(t *testing.T) {
 393	var tests = []string{
 394		"this line  \nhas a break\n",
 395		"<p>this line<br />\nhas a break</p>\n",
 396
 397		"this line \ndoes not\n",
 398		"<p>this line\ndoes not</p>\n",
 399
 400		"this line\\\ndoes not\n",
 401		"<p>this line\\\ndoes not</p>\n",
 402
 403		"this line\\ \ndoes not\n",
 404		"<p>this line\\\ndoes not</p>\n",
 405
 406		"this has an   \nextra space\n",
 407		"<p>this has an<br />\nextra space</p>\n",
 408	}
 409	doTestsInline(t, tests)
 410
 411	tests = []string{
 412		"this line  \nhas a break\n",
 413		"<p>this line<br />\nhas a break</p>\n",
 414
 415		"this line \ndoes not\n",
 416		"<p>this line\ndoes not</p>\n",
 417
 418		"this line\\\nhas a break\n",
 419		"<p>this line<br />\nhas a break</p>\n",
 420
 421		"this line\\ \ndoes not\n",
 422		"<p>this line\\\ndoes not</p>\n",
 423
 424		"this has an   \nextra space\n",
 425		"<p>this has an<br />\nextra space</p>\n",
 426	}
 427	doTestsInlineParam(t, tests, Options{
 428		Extensions: EXTENSION_BACKSLASH_LINE_BREAK},
 429		0, HtmlRendererParameters{})
 430}
 431
 432func TestInlineLink(t *testing.T) {
 433	var tests = []string{
 434		"[foo](/bar/)\n",
 435		"<p><a href=\"/bar/\">foo</a></p>\n",
 436
 437		"[foo with a title](/bar/ \"title\")\n",
 438		"<p><a href=\"/bar/\" title=\"title\">foo with a title</a></p>\n",
 439
 440		"[foo with a title](/bar/\t\"title\")\n",
 441		"<p><a href=\"/bar/\" title=\"title\">foo with a title</a></p>\n",
 442
 443		"[foo with a title](/bar/ \"title\"  )\n",
 444		"<p><a href=\"/bar/\" title=\"title\">foo with a title</a></p>\n",
 445
 446		"[foo with a title](/bar/ title with no quotes)\n",
 447		"<p><a href=\"/bar/ title with no quotes\">foo with a title</a></p>\n",
 448
 449		"[foo]()\n",
 450		"<p>[foo]()</p>\n",
 451
 452		"![foo](/bar/)\n",
 453		"<p><img src=\"/bar/\" alt=\"foo\" /></p>\n",
 454
 455		"![foo with a title](/bar/ \"title\")\n",
 456		"<p><img src=\"/bar/\" alt=\"foo with a title\" title=\"title\" /></p>\n",
 457
 458		"![foo with a title](/bar/\t\"title\")\n",
 459		"<p><img src=\"/bar/\" alt=\"foo with a title\" title=\"title\" /></p>\n",
 460
 461		"![foo with a title](/bar/ \"title\"  )\n",
 462		"<p><img src=\"/bar/\" alt=\"foo with a title\" title=\"title\" /></p>\n",
 463
 464		"![foo with a title](/bar/ title with no quotes)\n",
 465		"<p><img src=\"/bar/ title with no quotes\" alt=\"foo with a title\" /></p>\n",
 466
 467		"![](img.jpg)\n",
 468		"<p><img src=\"img.jpg\" alt=\"\" /></p>\n",
 469
 470		"[link](url)\n",
 471		"<p><a href=\"url\">link</a></p>\n",
 472
 473		"![foo]()\n",
 474		"<p>![foo]()</p>\n",
 475
 476		"[a link]\t(/with_a_tab/)\n",
 477		"<p><a href=\"/with_a_tab/\">a link</a></p>\n",
 478
 479		"[a link]  (/with_spaces/)\n",
 480		"<p><a href=\"/with_spaces/\">a link</a></p>\n",
 481
 482		"[text (with) [[nested] (brackets)]](/url/)\n",
 483		"<p><a href=\"/url/\">text (with) [[nested] (brackets)]</a></p>\n",
 484
 485		"[text (with) [broken nested] (brackets)]](/url/)\n",
 486		"<p>[text (with) <a href=\"brackets\">broken nested</a>]](/url/)</p>\n",
 487
 488		"[text\nwith a newline](/link/)\n",
 489		"<p><a href=\"/link/\">text\nwith a newline</a></p>\n",
 490
 491		"[text in brackets] [followed](/by a link/)\n",
 492		"<p>[text in brackets] <a href=\"/by a link/\">followed</a></p>\n",
 493
 494		"[link with\\] a closing bracket](/url/)\n",
 495		"<p><a href=\"/url/\">link with] a closing bracket</a></p>\n",
 496
 497		"[link with\\[ an opening bracket](/url/)\n",
 498		"<p><a href=\"/url/\">link with[ an opening bracket</a></p>\n",
 499
 500		"[link with\\) a closing paren](/url/)\n",
 501		"<p><a href=\"/url/\">link with) a closing paren</a></p>\n",
 502
 503		"[link with\\( an opening paren](/url/)\n",
 504		"<p><a href=\"/url/\">link with( an opening paren</a></p>\n",
 505
 506		"[link](  with whitespace)\n",
 507		"<p><a href=\"with whitespace\">link</a></p>\n",
 508
 509		"[link](  with whitespace   )\n",
 510		"<p><a href=\"with whitespace\">link</a></p>\n",
 511
 512		"[![image](someimage)](with image)\n",
 513		"<p><a href=\"with image\"><img src=\"someimage\" alt=\"image\" /></a></p>\n",
 514
 515		"[link](url \"one quote)\n",
 516		"<p><a href=\"url &quot;one quote\">link</a></p>\n",
 517
 518		"[link](url 'one quote)\n",
 519		"<p><a href=\"url 'one quote\">link</a></p>\n",
 520
 521		"[link](<url>)\n",
 522		"<p><a href=\"url\">link</a></p>\n",
 523
 524		"[link & ampersand](/url/)\n",
 525		"<p><a href=\"/url/\">link &amp; ampersand</a></p>\n",
 526
 527		"[link &amp; ampersand](/url/)\n",
 528		"<p><a href=\"/url/\">link &amp; ampersand</a></p>\n",
 529
 530		"[link](/url/&query)\n",
 531		"<p><a href=\"/url/&amp;query\">link</a></p>\n",
 532
 533		"[[t]](/t)\n",
 534		"<p><a href=\"/t\">[t]</a></p>\n",
 535
 536		"[link](</>)\n",
 537		"<p><a href=\"/\">link</a></p>\n",
 538
 539		"[link](<./>)\n",
 540		"<p><a href=\"./\">link</a></p>\n",
 541
 542		"[link](<../>)\n",
 543		"<p><a href=\"../\">link</a></p>\n",
 544	}
 545	doLinkTestsInline(t, tests)
 546
 547}
 548
 549func TestRelAttrLink(t *testing.T) {
 550	var nofollowTests = []string{
 551		"[foo](http://bar.com/foo/)\n",
 552		"<p><a href=\"http://bar.com/foo/\" rel=\"nofollow\">foo</a></p>\n",
 553
 554		"[foo](/bar/)\n",
 555		"<p><a href=\"/bar/\">foo</a></p>\n",
 556
 557		"[foo](/)\n",
 558		"<p><a href=\"/\">foo</a></p>\n",
 559
 560		"[foo](./)\n",
 561		"<p><a href=\"./\">foo</a></p>\n",
 562
 563		"[foo](../)\n",
 564		"<p><a href=\"../\">foo</a></p>\n",
 565
 566		"[foo](../bar)\n",
 567		"<p><a href=\"../bar\">foo</a></p>\n",
 568	}
 569	doTestsInlineParam(t, nofollowTests, Options{}, HTML_SAFELINK|HTML_NOFOLLOW_LINKS,
 570		HtmlRendererParameters{})
 571
 572	var noreferrerTests = []string{
 573		"[foo](http://bar.com/foo/)\n",
 574		"<p><a href=\"http://bar.com/foo/\" rel=\"noreferrer\">foo</a></p>\n",
 575
 576		"[foo](/bar/)\n",
 577		"<p><a href=\"/bar/\">foo</a></p>\n",
 578	}
 579	doTestsInlineParam(t, noreferrerTests, Options{}, HTML_SAFELINK|HTML_NOREFERRER_LINKS,
 580		HtmlRendererParameters{})
 581
 582	var nofollownoreferrerTests = []string{
 583		"[foo](http://bar.com/foo/)\n",
 584		"<p><a href=\"http://bar.com/foo/\" rel=\"nofollow noreferrer\">foo</a></p>\n",
 585
 586		"[foo](/bar/)\n",
 587		"<p><a href=\"/bar/\">foo</a></p>\n",
 588	}
 589	doTestsInlineParam(t, nofollownoreferrerTests, Options{}, HTML_SAFELINK|HTML_NOFOLLOW_LINKS|HTML_NOREFERRER_LINKS,
 590		HtmlRendererParameters{})
 591}
 592
 593func TestHrefTargetBlank(t *testing.T) {
 594	var tests = []string{
 595		// internal link
 596		"[foo](/bar/)\n",
 597		"<p><a href=\"/bar/\">foo</a></p>\n",
 598
 599		"[foo](/)\n",
 600		"<p><a href=\"/\">foo</a></p>\n",
 601
 602		"[foo](./)\n",
 603		"<p><a href=\"./\">foo</a></p>\n",
 604
 605		"[foo](./bar)\n",
 606		"<p><a href=\"./bar\">foo</a></p>\n",
 607
 608		"[foo](../)\n",
 609		"<p><a href=\"../\">foo</a></p>\n",
 610
 611		"[foo](../bar)\n",
 612		"<p><a href=\"../bar\">foo</a></p>\n",
 613
 614		"[foo](http://example.com)\n",
 615		"<p><a href=\"http://example.com\" target=\"_blank\">foo</a></p>\n",
 616	}
 617	doTestsInlineParam(t, tests, Options{}, HTML_SAFELINK|HTML_HREF_TARGET_BLANK, HtmlRendererParameters{})
 618}
 619
 620func TestSafeInlineLink(t *testing.T) {
 621	var tests = []string{
 622		"[foo](/bar/)\n",
 623		"<p><a href=\"/bar/\">foo</a></p>\n",
 624
 625		"[foo](/)\n",
 626		"<p><a href=\"/\">foo</a></p>\n",
 627
 628		"[foo](./)\n",
 629		"<p><a href=\"./\">foo</a></p>\n",
 630
 631		"[foo](../)\n",
 632		"<p><a href=\"../\">foo</a></p>\n",
 633
 634		"[foo](http://bar/)\n",
 635		"<p><a href=\"http://bar/\">foo</a></p>\n",
 636
 637		"[foo](https://bar/)\n",
 638		"<p><a href=\"https://bar/\">foo</a></p>\n",
 639
 640		"[foo](ftp://bar/)\n",
 641		"<p><a href=\"ftp://bar/\">foo</a></p>\n",
 642
 643		"[foo](mailto://bar/)\n",
 644		"<p><a href=\"mailto://bar/\">foo</a></p>\n",
 645
 646		// Not considered safe
 647		"[foo](baz://bar/)\n",
 648		"<p><tt>foo</tt></p>\n",
 649	}
 650	doSafeTestsInline(t, tests)
 651}
 652
 653func TestReferenceLink(t *testing.T) {
 654	var tests = []string{
 655		"[link][ref]\n",
 656		"<p>[link][ref]</p>\n",
 657
 658		"[link][ref]\n   [ref]: /url/ \"title\"\n",
 659		"<p><a href=\"/url/\" title=\"title\">link</a></p>\n",
 660
 661		"[link][ref]\n   [ref]: /url/\n",
 662		"<p><a href=\"/url/\">link</a></p>\n",
 663
 664		"   [ref]: /url/\n",
 665		"",
 666
 667		"   [ref]: /url/\n[ref2]: /url/\n [ref3]: /url/\n",
 668		"",
 669
 670		"   [ref]: /url/\n[ref2]: /url/\n [ref3]: /url/\n    [4spaces]: /url/\n",
 671		"<pre><code>[4spaces]: /url/\n</code></pre>\n",
 672
 673		"[hmm](ref2)\n   [ref]: /url/\n[ref2]: /url/\n [ref3]: /url/\n",
 674		"<p><a href=\"ref2\">hmm</a></p>\n",
 675
 676		"[ref]\n",
 677		"<p>[ref]</p>\n",
 678
 679		"[ref]\n   [ref]: /url/ \"title\"\n",
 680		"<p><a href=\"/url/\" title=\"title\">ref</a></p>\n",
 681
 682		"[ref]\n   [ref]: ../url/ \"title\"\n",
 683		"<p><a href=\"../url/\" title=\"title\">ref</a></p>\n",
 684	}
 685	doLinkTestsInline(t, tests)
 686}
 687
 688func TestTags(t *testing.T) {
 689	var tests = []string{
 690		"a <span>tag</span>\n",
 691		"<p>a <span>tag</span></p>\n",
 692
 693		"<span>tag</span>\n",
 694		"<p><span>tag</span></p>\n",
 695
 696		"<span>mismatch</spandex>\n",
 697		"<p><span>mismatch</spandex></p>\n",
 698
 699		"a <singleton /> tag\n",
 700		"<p>a <singleton /> tag</p>\n",
 701	}
 702	doTestsInline(t, tests)
 703}
 704
 705func TestAutoLink(t *testing.T) {
 706	var tests = []string{
 707		"http://foo.com/\n",
 708		"<p><a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 709
 710		"1 http://foo.com/\n",
 711		"<p>1 <a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 712
 713		"1http://foo.com/\n",
 714		"<p>1<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 715
 716		"1.http://foo.com/\n",
 717		"<p>1.<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 718
 719		"1. http://foo.com/\n",
 720		"<ol>\n<li><a href=\"http://foo.com/\">http://foo.com/</a></li>\n</ol>\n",
 721
 722		"-http://foo.com/\n",
 723		"<p>-<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 724
 725		"- http://foo.com/\n",
 726		"<ul>\n<li><a href=\"http://foo.com/\">http://foo.com/</a></li>\n</ul>\n",
 727
 728		"_http://foo.com/\n",
 729		"<p>_<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 730
 731		"令狐http://foo.com/\n",
 732		"<p>令狐<a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 733
 734		"令狐 http://foo.com/\n",
 735		"<p>令狐 <a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 736
 737		"ahttp://foo.com/\n",
 738		"<p>ahttp://foo.com/</p>\n",
 739
 740		">http://foo.com/\n",
 741		"<blockquote>\n<p><a href=\"http://foo.com/\">http://foo.com/</a></p>\n</blockquote>\n",
 742
 743		"> http://foo.com/\n",
 744		"<blockquote>\n<p><a href=\"http://foo.com/\">http://foo.com/</a></p>\n</blockquote>\n",
 745
 746		"go to <http://foo.com/>\n",
 747		"<p>go to <a href=\"http://foo.com/\">http://foo.com/</a></p>\n",
 748
 749		"a secure <https://link.org>\n",
 750		"<p>a secure <a href=\"https://link.org\">https://link.org</a></p>\n",
 751
 752		"an email <mailto:some@one.com>\n",
 753		"<p>an email <a href=\"mailto:some@one.com\">some@one.com</a></p>\n",
 754
 755		"an email <mailto://some@one.com>\n",
 756		"<p>an email <a href=\"mailto://some@one.com\">some@one.com</a></p>\n",
 757
 758		"an email <some@one.com>\n",
 759		"<p>an email <a href=\"mailto:some@one.com\">some@one.com</a></p>\n",
 760
 761		"an ftp <ftp://old.com>\n",
 762		"<p>an ftp <a href=\"ftp://old.com\">ftp://old.com</a></p>\n",
 763
 764		"an ftp <ftp:old.com>\n",
 765		"<p>an ftp <a href=\"ftp:old.com\">ftp:old.com</a></p>\n",
 766
 767		"a link with <http://new.com?query=foo&bar>\n",
 768		"<p>a link with <a href=\"http://new.com?query=foo&amp;bar\">" +
 769			"http://new.com?query=foo&amp;bar</a></p>\n",
 770
 771		"quotes mean a tag <http://new.com?query=\"foo\"&bar>\n",
 772		"<p>quotes mean a tag <http://new.com?query=\"foo\"&bar></p>\n",
 773
 774		"quotes mean a tag <http://new.com?query='foo'&bar>\n",
 775		"<p>quotes mean a tag <http://new.com?query='foo'&bar></p>\n",
 776
 777		"unless escaped <http://new.com?query=\\\"foo\\\"&bar>\n",
 778		"<p>unless escaped <a href=\"http://new.com?query=&quot;foo&quot;&amp;bar\">" +
 779			"http://new.com?query=&quot;foo&quot;&amp;bar</a></p>\n",
 780
 781		"even a > can be escaped <http://new.com?q=\\>&etc>\n",
 782		"<p>even a &gt; can be escaped <a href=\"http://new.com?q=&gt;&amp;etc\">" +
 783			"http://new.com?q=&gt;&amp;etc</a></p>\n",
 784
 785		"<a href=\"http://fancy.com\">http://fancy.com</a>\n",
 786		"<p><a href=\"http://fancy.com\">http://fancy.com</a></p>\n",
 787
 788		"<a href=\"http://fancy.com\">This is a link</a>\n",
 789		"<p><a href=\"http://fancy.com\">This is a link</a></p>\n",
 790
 791		"<a href=\"http://www.fancy.com/A_B.pdf\">http://www.fancy.com/A_B.pdf</a>\n",
 792		"<p><a href=\"http://www.fancy.com/A_B.pdf\">http://www.fancy.com/A_B.pdf</a></p>\n",
 793
 794		"(<a href=\"http://www.fancy.com/A_B\">http://www.fancy.com/A_B</a> (\n",
 795		"<p>(<a href=\"http://www.fancy.com/A_B\">http://www.fancy.com/A_B</a> (</p>\n",
 796
 797		"(<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",
 798		"<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",
 799
 800		"http://www.foo.com<br />\n",
 801		"<p><a href=\"http://www.foo.com\">http://www.foo.com</a><br /></p>\n",
 802
 803		"http://foo.com/viewtopic.php?f=18&amp;t=297",
 804		"<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",
 805
 806		"http://foo.com/viewtopic.php?param=&quot;18&quot;zz",
 807		"<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",
 808
 809		"http://foo.com/viewtopic.php?param=&quot;18&quot;",
 810		"<p><a href=\"http://foo.com/viewtopic.php?param=&quot;18&quot;\">http://foo.com/viewtopic.php?param=&quot;18&quot;</a></p>\n",
 811	}
 812	doLinkTestsInline(t, tests)
 813}
 814
 815var footnoteTests = []string{
 816	"testing footnotes.[^a]\n\n[^a]: This is the note\n",
 817	`<p>testing footnotes.<sup class="footnote-ref" id="fnref:a"><a rel="footnote" href="#fn:a">1</a></sup></p>
 818<div class="footnotes">
 819
 820<hr />
 821
 822<ol>
 823<li id="fn:a">This is the note
 824</li>
 825</ol>
 826</div>
 827`,
 828
 829	`testing long[^b] notes.
 830
 831[^b]: Paragraph 1
 832
 833	Paragraph 2
 834
 835	` + "```\n\tsome code\n\t```" + `
 836
 837	Paragraph 3
 838
 839No longer in the footnote
 840`,
 841	`<p>testing long<sup class="footnote-ref" id="fnref:b"><a rel="footnote" href="#fn:b">1</a></sup> notes.</p>
 842
 843<p>No longer in the footnote</p>
 844<div class="footnotes">
 845
 846<hr />
 847
 848<ol>
 849<li id="fn:b"><p>Paragraph 1</p>
 850
 851<p>Paragraph 2</p>
 852
 853<p><code>
 854some code
 855</code></p>
 856
 857<p>Paragraph 3</p>
 858</li>
 859</ol>
 860</div>
 861`,
 862
 863	`testing[^c] multiple[^d] notes.
 864
 865[^c]: this is [note] c
 866
 867
 868omg
 869
 870[^d]: this is note d
 871
 872what happens here
 873
 874[note]: /link/c
 875
 876`,
 877	`<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>
 878
 879<p>omg</p>
 880
 881<p>what happens here</p>
 882<div class="footnotes">
 883
 884<hr />
 885
 886<ol>
 887<li id="fn:c">this is <a href="/link/c">note</a> c
 888</li>
 889<li id="fn:d">this is note d
 890</li>
 891</ol>
 892</div>
 893`,
 894
 895	"testing inline^[this is the note] notes.\n",
 896	`<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>
 897<div class="footnotes">
 898
 899<hr />
 900
 901<ol>
 902<li id="fn:this-is-the-note">this is the note</li>
 903</ol>
 904</div>
 905`,
 906
 907	"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",
 908	`<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>
 909<div class="footnotes">
 910
 911<hr />
 912
 913<ol>
 914<li id="fn:1"><p>the first deferred note</p>
 915
 916<p>which happens to be a block</p>
 917</li>
 918<li id="fn:inline-note">inline note</li>
 919<li id="fn:2">the second deferred note
 920</li>
 921</ol>
 922</div>
 923`,
 924
 925	`This is a footnote[^1]^[and this is an inline footnote]
 926
 927[^1]: the footnote text.
 928
 929    may be multiple paragraphs.
 930`,
 931	`<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>
 932<div class="footnotes">
 933
 934<hr />
 935
 936<ol>
 937<li id="fn:1"><p>the footnote text.</p>
 938
 939<p>may be multiple paragraphs.</p>
 940</li>
 941<li id="fn:and-this-is-an-i">and this is an inline footnote</li>
 942</ol>
 943</div>
 944`,
 945
 946	"empty footnote[^]\n\n[^]: fn text",
 947	"<p>empty footnote<sup class=\"footnote-ref\" id=\"fnref:\"><a rel=\"footnote\" href=\"#fn:\">1</a></sup></p>\n<div class=\"footnotes\">\n\n<hr />\n\n<ol>\n<li id=\"fn:\">fn text\n</li>\n</ol>\n</div>\n",
 948
 949	"Some text.[^note1]\n\n[^note1]: fn1",
 950	"<p>Some text.<sup class=\"footnote-ref\" id=\"fnref:note1\"><a rel=\"footnote\" href=\"#fn:note1\">1</a></sup></p>\n<div class=\"footnotes\">\n\n<hr />\n\n<ol>\n<li id=\"fn:note1\">fn1\n</li>\n</ol>\n</div>\n",
 951
 952	"Some text.[^note1][^note2]\n\n[^note1]: fn1\n[^note2]: fn2\n",
 953	"<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<div class=\"footnotes\">\n\n<hr />\n\n<ol>\n<li id=\"fn:note1\">fn1\n</li>\n<li id=\"fn:note2\">fn2\n</li>\n</ol>\n</div>\n",
 954
 955	`Bla bla [^1] [WWW][w3]
 956
 957[^1]: This is a footnote
 958
 959[w3]: http://www.w3.org/
 960`,
 961	`<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>
 962<div class="footnotes">
 963
 964<hr />
 965
 966<ol>
 967<li id="fn:1">This is a footnote
 968</li>
 969</ol>
 970</div>
 971`,
 972}
 973
 974func TestFootnotes(t *testing.T) {
 975	doTestsInlineParam(t, footnoteTests, Options{Extensions: EXTENSION_FOOTNOTES}, 0, HtmlRendererParameters{})
 976}
 977
 978func TestFootnotesWithParameters(t *testing.T) {
 979	tests := make([]string, len(footnoteTests))
 980
 981	prefix := "testPrefix"
 982	returnText := "ret"
 983	re := regexp.MustCompile(`(?ms)<li id="fn:(\S+?)">(.*?)</li>`)
 984
 985	// Transform the test expectations to match the parameters we're using.
 986	for i, test := range footnoteTests {
 987		if i%2 == 1 {
 988			test = strings.Replace(test, "fn:", "fn:"+prefix, -1)
 989			test = strings.Replace(test, "fnref:", "fnref:"+prefix, -1)
 990			test = re.ReplaceAllString(test, `<li id="fn:$1">$2 <a class="footnote-return" href="#fnref:$1">ret</a></li>`)
 991		}
 992		tests[i] = test
 993	}
 994
 995	params := HtmlRendererParameters{
 996		FootnoteAnchorPrefix:       prefix,
 997		FootnoteReturnLinkContents: returnText,
 998	}
 999
1000	doTestsInlineParam(t, tests, Options{Extensions: EXTENSION_FOOTNOTES}, HTML_FOOTNOTE_RETURN_LINKS, params)
1001}
1002
1003func TestInlineComments(t *testing.T) {
1004	var tests = []string{
1005		"Hello <!-- there ->\n",
1006		"<p>Hello &lt;!&mdash; there &ndash;&gt;</p>\n",
1007
1008		"Hello <!-- there -->\n",
1009		"<p>Hello <!-- there --></p>\n",
1010
1011		"Hello <!-- there -->",
1012		"<p>Hello <!-- there --></p>\n",
1013
1014		"Hello <!---->\n",
1015		"<p>Hello <!----></p>\n",
1016
1017		"Hello <!-- there -->\na",
1018		"<p>Hello <!-- there -->\na</p>\n",
1019
1020		"* list <!-- item -->\n",
1021		"<ul>\n<li>list <!-- item --></li>\n</ul>\n",
1022
1023		"<!-- Front --> comment\n",
1024		"<p><!-- Front --> comment</p>\n",
1025
1026		"blahblah\n<!--- foo -->\nrhubarb\n",
1027		"<p>blahblah\n<!--- foo -->\nrhubarb</p>\n",
1028	}
1029	doTestsInlineParam(t, tests, Options{}, HTML_USE_SMARTYPANTS, HtmlRendererParameters{})
1030}
1031
1032func TestSmartDoubleQuotes(t *testing.T) {
1033	var tests = []string{
1034		"this should be normal \"quoted\" text.\n",
1035		"<p>this should be normal &ldquo;quoted&rdquo; text.</p>\n",
1036		"this \" single double\n",
1037		"<p>this &ldquo; single double</p>\n",
1038		"two pair of \"some\" quoted \"text\".\n",
1039		"<p>two pair of &ldquo;some&rdquo; quoted &ldquo;text&rdquo;.</p>\n"}
1040
1041	doTestsInlineParam(t, tests, Options{}, HTML_USE_SMARTYPANTS, HtmlRendererParameters{})
1042}
1043
1044func TestSmartAngledDoubleQuotes(t *testing.T) {
1045	var tests = []string{
1046		"this should be angled \"quoted\" text.\n",
1047		"<p>this should be angled &laquo;quoted&raquo; text.</p>\n",
1048		"this \" single double\n",
1049		"<p>this &laquo; single double</p>\n",
1050		"two pair of \"some\" quoted \"text\".\n",
1051		"<p>two pair of &laquo;some&raquo; quoted &laquo;text&raquo;.</p>\n"}
1052
1053	doTestsInlineParam(t, tests, Options{}, HTML_USE_SMARTYPANTS|HTML_SMARTYPANTS_ANGLED_QUOTES, HtmlRendererParameters{})
1054}
1055
1056func TestSmartFractions(t *testing.T) {
1057	var tests = []string{
1058		"1/2, 1/4 and 3/4; 1/4th and 3/4ths\n",
1059		"<p>&frac12;, &frac14; and &frac34;; &frac14;th and &frac34;ths</p>\n",
1060		"1/2/2015, 1/4/2015, 3/4/2015; 2015/1/2, 2015/1/4, 2015/3/4.\n",
1061		"<p>1/2/2015, 1/4/2015, 3/4/2015; 2015/1/2, 2015/1/4, 2015/3/4.</p>\n"}
1062
1063	doTestsInlineParam(t, tests, Options{}, HTML_USE_SMARTYPANTS, HtmlRendererParameters{})
1064
1065	tests = []string{
1066		"1/2, 2/3, 81/100 and 1000000/1048576.\n",
1067		"<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",
1068		"1/2/2015, 1/4/2015, 3/4/2015; 2015/1/2, 2015/1/4, 2015/3/4.\n",
1069		"<p>1/2/2015, 1/4/2015, 3/4/2015; 2015/1/2, 2015/1/4, 2015/3/4.</p>\n"}
1070
1071	doTestsInlineParam(t, tests, Options{}, HTML_USE_SMARTYPANTS|HTML_SMARTYPANTS_FRACTIONS, HtmlRendererParameters{})
1072}