luce/spec/gfm/images.unit

>>> Images - 580
![foo](/url "title")
<<<
<p><img src="/url" alt="foo" title="title" /></p>
>>> Images - 581
![foo *bar*]

[foo *bar*]: train.jpg "train & tracks"
<<<
<p><img src="train.jpg" alt="foo bar" title="train &amp; tracks" /></p>
>>> Images - 582
![foo ![bar](/url)](/url2)
<<<
<p><img src="/url2" alt="foo bar" /></p>
>>> Images - 583
![foo [bar](/url)](/url2)
<<<
<p><img src="/url2" alt="foo bar" /></p>
>>> Images - 584
![foo *bar*][]

[foo *bar*]: train.jpg "train & tracks"
<<<
<p><img src="train.jpg" alt="foo bar" title="train &amp; tracks" /></p>
>>> Images - 585
![foo *bar*][foobar]

[FOOBAR]: train.jpg "train & tracks"
<<<
<p><img src="train.jpg" alt="foo bar" title="train &amp; tracks" /></p>
>>> Images - 586
![foo](train.jpg)
<<<
<p><img src="train.jpg" alt="foo" /></p>
>>> Images - 587
My ![foo bar](/path/to/train.jpg  "title"   )
<<<
<p>My <img src="/path/to/train.jpg" alt="foo bar" title="title" /></p>
>>> Images - 588
![foo](<url>)
<<<
<p><img src="url" alt="foo" /></p>
>>> Images - 589
![](/url)
<<<
<p><img src="/url" alt="" /></p>
>>> Images - 590
![foo][bar]

[bar]: /url
<<<
<p><img src="/url" alt="foo" /></p>
>>> Images - 591
![foo][bar]

[BAR]: /url
<<<
<p><img src="/url" alt="foo" /></p>
>>> Images - 592
![foo][]

[foo]: /url "title"
<<<
<p><img src="/url" alt="foo" title="title" /></p>
>>> Images - 593
![*foo* bar][]

[*foo* bar]: /url "title"
<<<
<p><img src="/url" alt="foo bar" title="title" /></p>
>>> Images - 594
![Foo][]

[foo]: /url "title"
<<<
<p><img src="/url" alt="Foo" title="title" /></p>
>>> Images - 595
![foo] 
[]

[foo]: /url "title"
<<<
<p><img src="/url" alt="foo" title="title" />
[]</p>
>>> Images - 596
![foo]

[foo]: /url "title"
<<<
<p><img src="/url" alt="foo" title="title" /></p>
>>> Images - 597
![*foo* bar]

[*foo* bar]: /url "title"
<<<
<p><img src="/url" alt="foo bar" title="title" /></p>
>>> Images - 598
![[foo]]

[[foo]]: /url "title"
<<<
<p>![[foo]]</p>
<p>[[foo]]: /url &quot;title&quot;</p>
>>> Images - 599
![Foo]

[foo]: /url "title"
<<<
<p><img src="/url" alt="Foo" title="title" /></p>
>>> Images - 600
!\[foo]

[foo]: /url "title"
<<<
<p>![foo]</p>
>>> Images - 601
\![foo]

[foo]: /url "title"
<<<
<p>!<a href="/url" title="title">foo</a></p>