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Markdown parser fork with extended syntax for personal use.
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17 kB · 537 lines
Rust
at hack
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#[test]fn link_resource() -> Result<(), message::Message> { let danger = Options { compile: CompileOptions { allow_dangerous_html: true, allow_dangerous_protocol: true, ..Default::default() }, ..Default::default() };
assert_eq!( to_html("[link](/uri \"title\")"), "<p><a href=\"/uri\" title=\"title\">link</a></p>", "should support links" );
assert_eq!( to_html("[link](/uri)"), "<p><a href=\"/uri\">link</a></p>", "should support links w/o title" );
assert_eq!( to_html("[link]()"), "<p><a href=\"\">link</a></p>", "should support links w/o destination" );
assert_eq!( to_html("[link](<>)"), "<p><a href=\"\">link</a></p>", "should support links w/ empty enclosed destination" );
assert_eq!( to_html("[link](/my uri)"), "<p>[link](/my uri)</p>", "should not support links w/ spaces in destination" );
assert_eq!( to_html("[link](</my uri>)"), "<p><a href=\"/my%20uri\">link</a></p>", "should support links w/ spaces in enclosed destination" );
assert_eq!( to_html("[link](foo\nbar)"), "<p>[link](foo\nbar)</p>", "should not support links w/ line endings in destination" );
assert_eq!( to_html_with_options("[link](<foo\nbar>)", &danger)?, "<p>[link](<foo\nbar>)</p>", "should not support links w/ line endings in enclosed destination" );
assert_eq!( to_html("[a](<b)c>)"), "<p><a href=\"b)c\">a</a></p>", "should support links w/ closing parens in destination" );
assert_eq!( to_html("[link](<foo\\>)"), "<p>[link](<foo>)</p>", "should not support links w/ enclosed destinations w/o end" );
assert_eq!( to_html_with_options("[a](<b)c\n[a](<b)c>\n[a](<b>c)", &danger)?, "<p>[a](<b)c\n[a](<b)c>\n[a](<b>c)</p>", "should not support links w/ unmatched enclosed destinations" );
assert_eq!( to_html("[link](\\(foo\\))"), "<p><a href=\"(foo)\">link</a></p>", "should support links w/ destinations w/ escaped parens" );
assert_eq!( to_html("[link](foo(and(bar)))"), "<p><a href=\"foo(and(bar))\">link</a></p>", "should support links w/ destinations w/ balanced parens" );
assert_eq!( to_html("[link](foo\\(and\\(bar\\))"), "<p><a href=\"foo(and(bar)\">link</a></p>", "should support links w/ destinations w/ escaped parens" );
assert_eq!( to_html("[link](<foo(and(bar)>)"), "<p><a href=\"foo(and(bar)\">link</a></p>", "should support links w/ enclosed destinations w/ parens" );
assert_eq!( to_html_with_options("[link](foo\\)\\:)", &danger)?, "<p><a href=\"foo):\">link</a></p>", "should support links w/ escapes in destinations" );
assert_eq!( to_html("[link](#fragment)"), "<p><a href=\"#fragment\">link</a></p>", "should support links w/ destinations to fragments" );
assert_eq!( to_html("[link](http://example.com#fragment)"), "<p><a href=\"http://example.com#fragment\">link</a></p>", "should support links w/ destinations to URLs w/ fragments" );
assert_eq!( to_html("[link](http://example.com?foo=3#frag)"), "<p><a href=\"http://example.com?foo=3#frag\">link</a></p>", "should support links w/ destinations to URLs w/ search and fragments" );
assert_eq!( to_html("[link](foo\\bar)"), "<p><a href=\"foo%5Cbar\">link</a></p>", "should not support non-punctuation character escapes in links" );
assert_eq!( to_html("[link](foo%20bä)"), "<p><a href=\"foo%20b%C3%A4\">link</a></p>", "should support character references in links" );
assert_eq!( to_html("[link](\"title\")"), "<p><a href=\"%22title%22\">link</a></p>", "should not support links w/ only a title" );
assert_eq!( to_html("[link](/url \"title\")"), "<p><a href=\"/url\" title=\"title\">link</a></p>", "should support titles w/ double quotes" );
assert_eq!( to_html("[link](/url 'title')"), "<p><a href=\"/url\" title=\"title\">link</a></p>", "should support titles w/ single quotes" );
assert_eq!( to_html("[link](/url (title))"), "<p><a href=\"/url\" title=\"title\">link</a></p>", "should support titles w/ parens" );
assert_eq!( to_html("[link](/url \"title \\\""\")"), "<p><a href=\"/url\" title=\"title ""\">link</a></p>", "should support character references and escapes in titles" );
assert_eq!( to_html("[link](/url \"title\")"), "<p><a href=\"/url%C2%A0%22title%22\">link</a></p>", "should not support unicode whitespace between destination and title" );
assert_eq!( to_html("[link](/url \"title \"and\" title\")"), "<p>[link](/url "title "and" title")</p>", "should not support nested balanced quotes in title" );
assert_eq!( to_html("[link](/url 'title \"and\" title')"), "<p><a href=\"/url\" title=\"title "and" title\">link</a></p>", "should support the other quotes in titles" );
assert_eq!( to_html("[link]( /uri\n \"title\" )"), "<p><a href=\"/uri\" title=\"title\">link</a></p>", "should support whitespace around destination and title (1)" );
assert_eq!( to_html("[link](\t\n/uri \"title\")"), "<p><a href=\"/uri\" title=\"title\">link</a></p>", "should support whitespace around destination and title (2)" );
assert_eq!( to_html("[link](/uri \"title\"\t\n)"), "<p><a href=\"/uri\" title=\"title\">link</a></p>", "should support whitespace around destination and title (3)" );
assert_eq!( to_html("[link] (/uri)"), "<p>[link] (/uri)</p>", "should not support whitespace between label and resource" );
assert_eq!( to_html("[link [foo [bar]]](/uri)"), "<p><a href=\"/uri\">link [foo [bar]]</a></p>", "should support balanced brackets" );
assert_eq!( to_html("[link] bar](/uri)"), "<p>[link] bar](/uri)</p>", "should not support unbalanced brackets (1)" );
assert_eq!( to_html("[link [bar](/uri)"), "<p>[link <a href=\"/uri\">bar</a></p>", "should not support unbalanced brackets (2)" );
assert_eq!( to_html("[link \\[bar](/uri)"), "<p><a href=\"/uri\">link [bar</a></p>", "should support characer escapes" );
assert_eq!( to_html("[link *foo **bar** `#`*](/uri)"), "<p><a href=\"/uri\">link <em>foo <strong>bar</strong> <code>#</code></em></a></p>", "should support content" );
assert_eq!( to_html("[](/uri)"), "<p><a href=\"/uri\"><img src=\"moon.jpg\" alt=\"moon\" /></a></p>", "should support an image as content" );
assert_eq!( to_html("[foo [bar](/uri)](/uri)"), "<p>[foo <a href=\"/uri\">bar</a>](/uri)</p>", "should not support links in links (1)" );
assert_eq!( to_html("[foo *[bar [baz](/uri)](/uri)*](/uri)"), "<p>[foo <em>[bar <a href=\"/uri\">baz</a>](/uri)</em>](/uri)</p>", "should not support links in links (2)" );
assert_eq!( to_html("](uri2)](uri3)"), "<p><img src=\"uri3\" alt=\"[foo](uri2)\" /></p>", "should not support links in links (3)" );
assert_eq!( to_html("*[foo*](/uri)"), "<p>*<a href=\"/uri\">foo*</a></p>", "should prefer links over emphasis (1)" );
assert_eq!( to_html("[foo *bar](baz*)"), "<p><a href=\"baz*\">foo *bar</a></p>", "should prefer links over emphasis (2)" );
assert_eq!( to_html_with_options("[foo <bar attr=\"](baz)\">", &danger)?, "<p>[foo <bar attr=\"](baz)\"></p>", "should prefer HTML over links" );
assert_eq!( to_html("[foo`](/uri)`"), "<p>[foo<code>](/uri)</code></p>", "should prefer code over links" );
assert_eq!( to_html("[foo<http://example.com/?search=](uri)>"), "<p>[foo<a href=\"http://example.com/?search=%5D(uri)\">http://example.com/?search=](uri)</a></p>", "should prefer autolinks over links" );
assert_eq!( to_html("[foo<http://example.com/?search=](uri)>"), "<p>[foo<a href=\"http://example.com/?search=%5D(uri)\">http://example.com/?search=](uri)</a></p>", "should prefer autolinks over links" );
// Extra assert_eq!( to_html("[]()"), "<p><a href=\"\"></a></p>", "should support an empty link" );
// See: <https://github.com/commonmark/commonmark.js/issues/192> assert_eq!( to_html("[](<> \"\")"), "<p><a href=\"\"></a></p>", "should ignore an empty title" );
assert_eq!( to_html_with_options("[a](<b>\"c\")", &danger)?, "<p>[a](<b>"c")</p>", "should require whitespace between enclosed destination and title" );
assert_eq!( to_html("[](<"), "<p>[](<</p>", "should not support an unclosed enclosed destination" );
assert_eq!( to_html("[]("), "<p>[](</p>", "should not support an unclosed destination" );
assert_eq!( to_html("[](\\<)"), "<p><a href=\"%3C\"></a></p>", "should support unenclosed link destination starting w/ escapes" );
assert_eq!( to_html("[](<\\<>)"), "<p><a href=\"%3C\"></a></p>", "should support enclosed link destination starting w/ escapes" );
assert_eq!( to_html("[](\\"), "<p>[](\\</p>", "should not support unenclosed link destination starting w/ an incorrect escape" );
assert_eq!( to_html("[](<\\"), "<p>[](<\\</p>", "should not support enclosed link destination starting w/ an incorrect escape" );
assert_eq!( to_html("[](a \""), "<p>[](a "</p>", "should not support an eof in a link title (1)" );
assert_eq!( to_html("[](a '"), "<p>[](a '</p>", "should not support an eof in a link title (2)" );
assert_eq!( to_html("[](a ("), "<p>[](a (</p>", "should not support an eof in a link title (3)" );
assert_eq!( to_html("[](a \"\\"), "<p>[](a "\\</p>", "should not support an eof in a link title escape (1)" );
assert_eq!( to_html("[](a '\\"), "<p>[](a '\\</p>", "should not support an eof in a link title escape (2)" );
assert_eq!( to_html("[](a (\\"), "<p>[](a (\\</p>", "should not support an eof in a link title escape (3)" );
assert_eq!( to_html("[](a \"\\\"\")"), "<p><a href=\"a\" title=\""\"></a></p>", "should support a character escape to start a link title (1)" );
assert_eq!( to_html("[](a '\\'')"), "<p><a href=\"a\" title=\"\'\"></a></p>", "should support a character escape to start a link title (2)" );
assert_eq!( to_html("[](a (\\)))"), "<p><a href=\"a\" title=\")\"></a></p>", "should support a character escape to start a link title (3)" );
assert_eq!( to_html("[&©&](example.com/&©& \"&©&\")"), "<p><a href=\"example.com/&%C2%A9&\" title=\"&©&\">&©&</a></p>", "should support character references in links" );
assert_eq!( to_html("[a](1())"), "<p><a href=\"1()\">a</a></p>", "should support 1 set of parens" );
assert_eq!( to_html("[a](1(2()))"), "<p><a href=\"1(2())\">a</a></p>", "should support 2 sets of parens" );
assert_eq!( to_html( "[a](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()))))))))))))))))))))))))))))))))"), "<p><a href=\"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())))))))))))))))))))))))))))))))\">a</a></p>", "should support 32 sets of parens" );
assert_eq!( to_html( "[a](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())))))))))))))))))))))))))))))))))"), "<p>[a](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())))))))))))))))))))))))))))))))))</p>", "should not support 33 or more sets of parens" );
assert_eq!( to_html("[a](b \"\n c\")"), "<p><a href=\"b\" title=\"\nc\">a</a></p>", "should support an eol at the start of a title" );
assert_eq!( to_html("[a](b( \"c\")"), "<p>[a](b( "c")</p>", "should not support whitespace when unbalanced in a raw destination" );
assert_eq!( to_html("[a](\0)"), "<p><a href=\"%EF%BF%BD\">a</a></p>", "should support a single NUL character as a link resource" );
assert_eq!( to_mdast( "a [alpha]() b [bravo](charlie 'delta') c.", &Default::default() )?, Node::Root(Root { children: vec![Node::Paragraph(Paragraph { children: vec![ Node::Text(Text { value: "a ".into(), position: Some(Position::new(1, 1, 0, 1, 3, 2)) }), Node::Link(Link { url: String::new(), title: None, children: vec![Node::Text(Text { value: "alpha".into(), position: Some(Position::new(1, 4, 3, 1, 9, 8)) }),], position: Some(Position::new(1, 3, 2, 1, 12, 11)) }), Node::Text(Text { value: " b ".into(), position: Some(Position::new(1, 12, 11, 1, 15, 14)) }), Node::Link(Link { url: "charlie".into(), title: Some("delta".into()), children: vec![Node::Text(Text { value: "bravo".into(), position: Some(Position::new(1, 16, 15, 1, 21, 20)) }),], position: Some(Position::new(1, 15, 14, 1, 39, 38)) }), Node::Text(Text { value: " c.".into(), position: Some(Position::new(1, 39, 38, 1, 42, 41)) }) ], position: Some(Position::new(1, 1, 0, 1, 42, 41)) })], position: Some(Position::new(1, 1, 0, 1, 42, 41)) }), "should support link (resource) as `Link`s in mdast" );
assert_eq!( to_mdast("[](url)", &Default::default())?, Node::Root(Root { children: vec![Node::Paragraph(Paragraph { children: vec![Node::Link(Link { children: vec![Node::Image(Image { alt: "name".into(), url: "image".into(), title: None, position: Some(Position::new(1, 2, 1, 1, 16, 15)), }),], url: "url".into(), title: None, position: Some(Position::new(1, 1, 0, 1, 22, 21)), }),], position: Some(Position::new(1, 1, 0, 1, 22, 21)), }),], position: Some(Position::new(1, 1, 0, 1, 22, 21)) }), "should support nested links in mdast" );
Ok(())}