EPUB reader: stop mangling external URLs.

Closes #2284.

Note the changes to the test suite. In each case, a mangled
external link has been fixed, so these are all positive.

2 files changed, 7 insertions, 7 deletions

diff --git a/tests/epub/features.native b/tests/epub/features.native
index 6ccc04f43..f71e15cf5 100644
--- a/tests/epub/features.native
+++ b/tests/epub/features.native
@@ -5,14 +5,14 @@
 ,Header 2 ("",[],[]) [Str "Status",Space,Str "of",Space,Str "this",Space,Str "Document"]
 ,Para [Str "This",Space,Str "publication",Space,Str "is",Space,Str "currently",Space,Str "considered",Space,Span ("",["status"],[]) [Str "[UNDER",Space,Str "DEVELOPMENT]"],Space,Str "by",Space,Str "the",Space,Str "IDPF."]
 ,Para [Str "This",Space,Str "publication",Space,Str "is",Space,Str "part",Space,Str "of",Space,Str "version",Space,Span ("",["version"],[]) [Str "X.X"],Space,Str "of",Space,Str "the",Space,Str "EPUB",Space,Str "3.0",Space,Str "Compliance",Space,Str "Test",Space,Str "Suite",Space,Str "released",Space,Str "on",Space,RawInline (Format "html") "<time class=\"release\">",Str "TBD",RawInline (Format "html") "</time>",Str "."]
-,Para [Str "Before",Space,Str "using",Space,Str "this",Space,Str "publication",Space,Str "to",Space,Str "evaluate",Space,Str "reading",Space,Str "systems,",Space,Str "testers",Space,Str "are",Space,Str "strongly",Space,Str "encouraged",Space,Str "to",Space,Str "verify",Space,Str "that",Space,Str "they",Space,Str "have",Space,Str "the",Space,Str "latest",Space,Str "release",Space,Str "by",Space,Str "checking",Space,Str "the",Space,Str "current",Space,Str "release",Space,Str "version",Space,Str "and",Space,Str "date",Space,Str "of",Space,Str "the",Space,Str "test",Space,Str "suite",Space,Str "at",Space,Link [Str "TBD"] ("","")]
+,Para [Str "Before",Space,Str "using",Space,Str "this",Space,Str "publication",Space,Str "to",Space,Str "evaluate",Space,Str "reading",Space,Str "systems,",Space,Str "testers",Space,Str "are",Space,Str "strongly",Space,Str "encouraged",Space,Str "to",Space,Str "verify",Space,Str "that",Space,Str "they",Space,Str "have",Space,Str "the",Space,Str "latest",Space,Str "release",Space,Str "by",Space,Str "checking",Space,Str "the",Space,Str "current",Space,Str "release",Space,Str "version",Space,Str "and",Space,Str "date",Space,Str "of",Space,Str "the",Space,Str "test",Space,Str "suite",Space,Str "at",Space,Link [Str "TBD"] ("http://idpf.org/","")]
 ,Para [Str "This",Space,Str "publication",Space,Str "is",Space,Str "one",Space,Str "of",Space,Str "several",Space,Str "that",Space,Str "currently",Space,Str "comprise",Space,Str "the",Space,Str "EPUB",Space,Str "3",Space,Str "conformance",Space,Str "test",Space,Str "suite",Space,Str "for",Space,Str "reflowable",Space,Str "content.",Space,Str "The",Space,Str "complete",Space,Str "test",Space,Str "suite",Space,Str "includes",Space,Str "all",Space,Str "of",Space,Str "the",Space,Str "following",Space,Str "publications:"]
 ,OrderedList (1,DefaultStyle,DefaultDelim)
  [[Plain [Str "."]]]
 ,RawBlock (Format "html") "</section>"
 ,RawBlock (Format "html") "<section>"
 ,Header 2 ("",[],[]) [Str "About",Space,Str "this",Space,Str "Document"]
-,Para [Str "This",Space,Str "document",Space,Str "focuses",Space,Str "on",Space,Str "human-evaluated",Space,Str "binary",Space,Str "(pass/fail)",Space,Str "tests",Space,Str "in",Space,Str "a",Space,Str "reflowable",Space,Str "context.",Space,Str "Tests",Space,Str "for",Space,Str "fixed-layout",Space,Str "content",Space,Str "and",Space,Str "other",Space,Str "individual",Space,Str "tests",Space,Str "that",Space,Str "require",Space,Str "a",Space,Str "dedicated",Space,Str "epub",Space,Str "file",Space,Str "are",Space,Str "available",Space,Str "in",Space,Str "additional",Space,Str "sibling",Space,Str "documents;",Space,Str "refer",Space,Str "to",Space,Str "the",Space,Link [Str "test",Space,Str "suite",Space,Str "wiki"] ("Overview",""),Space,Str "(",Code ("",[],[]) "https://github.com/mgylling/epub-testsuite/wiki/Overview",Str ")",Space,Str "for",Space,Str "additional",Space,Str "information."]
+,Para [Str "This",Space,Str "document",Space,Str "focuses",Space,Str "on",Space,Str "human-evaluated",Space,Str "binary",Space,Str "(pass/fail)",Space,Str "tests",Space,Str "in",Space,Str "a",Space,Str "reflowable",Space,Str "context.",Space,Str "Tests",Space,Str "for",Space,Str "fixed-layout",Space,Str "content",Space,Str "and",Space,Str "other",Space,Str "individual",Space,Str "tests",Space,Str "that",Space,Str "require",Space,Str "a",Space,Str "dedicated",Space,Str "epub",Space,Str "file",Space,Str "are",Space,Str "available",Space,Str "in",Space,Str "additional",Space,Str "sibling",Space,Str "documents;",Space,Str "refer",Space,Str "to",Space,Str "the",Space,Link [Str "test",Space,Str "suite",Space,Str "wiki"] ("https://github.com/mgylling/epub-testsuite/wiki/Overview",""),Space,Str "(",Code ("",[],[]) "https://github.com/mgylling/epub-testsuite/wiki/Overview",Str ")",Space,Str "for",Space,Str "additional",Space,Str "information."]
 ,RawBlock (Format "html") "</section>"
 ,RawBlock (Format "html") "<section>"
 ,Header 2 ("",[],[]) [Str "Conventions"]
@@ -74,7 +74,7 @@
 ,Header 2 ("",[],[]) [Span ("",["nature"],[]) [Str "[REQUIRED]"],Space,Span ("",["test-id"],[]) [Str "mathml-025"],Str "Testing",Space,Code ("",[],[]) "mtable",Space,Str "with",Space,Code ("",[],[]) "colspan",Space,Str "and",Space,Code ("",[],[]) "rowspan",Space,Str "attributes,",Space,Str "Hebrew",Space,Str "and",Space,Str "Script",Space,Str "fonts"]
 ,Para [Str "Tests",Space,Str "whether",Space,Code ("",[],[]) "mtable",Space,Str "with",Space,Code ("",[],[]) "colspan",Space,Str "and",Space,Code ("",[],[]) "mspace",Space,Str "attributes",Space,Str "(colum",Space,Str "and",Space,Str "row",Space,Str "spanning)",Space,Str "are",Space,Str "supported;",Space,Str "uses",Space,Str "Hebrew",Space,Str "and",Space,Str "Script",Space,Str "alphabets."]
 ,Para [Math DisplayMath "\\begin{array}{llllllllll}\n & {\\operatorname{cov}\\left( \\mathcal{L} \\right)} & \\longrightarrow & {\\operatorname{non}\\left( \\mathcal{K} \\right)} & \\longrightarrow & {\\operatorname{cof}\\left( \\mathcal{K} \\right)} & \\longrightarrow & {\\operatorname{cof}\\left( \\mathcal{L} \\right)} & \\longrightarrow & 2^{\\aleph_{0}} \\\\\n & \\uparrow & & \\uparrow & & \\uparrow & & \\uparrow & & \\\\\n & {\\mathfrak{b}} & \\longrightarrow & {\\mathfrak{d}} & & & & & & \\\\\n & \\uparrow & & \\uparrow & & & & & & \\\\\n\\aleph_{1} & \\longrightarrow & {\\operatorname{add}\\left( \\mathcal{L} \\right)} & \\longrightarrow & {\\operatorname{add}\\left( \\mathcal{K} \\right)} & \\longrightarrow & {\\operatorname{cov}\\left( \\mathcal{K} \\right)} & \\longrightarrow & {\\operatorname{non}\\left( \\mathcal{L} \\right)} & \\\\\n\\end{array}"]
-,Para [Str "The",Space,Str "test",Space,Str "passes",Space,Str "if",Space,Str "the",Space,Str "rendering",Space,Str "looks",Space,Str "like",Space,Link [Str "Cicho\324's",Space,Str "Diagram"] ("Cicho%C5%84's_diagram",""),Str ":",Space,Str "."]
+,Para [Str "The",Space,Str "test",Space,Str "passes",Space,Str "if",Space,Str "the",Space,Str "rendering",Space,Str "looks",Space,Str "like",Space,Link [Str "Cicho\324's",Space,Str "Diagram"] ("http://en.wikipedia.org/wiki/Cicho%C5%84's_diagram",""),Str ":",Space,Str "."]
 ,RawBlock (Format "html") "</section>"
 ,RawBlock (Format "html") "<section id=\"mathml-026\" class=\"ctest\">"
 ,Header 2 ("",[],[]) [Span ("",["nature"],[]) [Str "[REQUIRED]"],Space,Span ("",["test-id"],[]) [Str "mathml-026"],Str "BiDi,",Space,Str "RTL",Space,Str "and",Space,Str "Arabic",Space,Str "alphabets"]
diff --git a/tests/epub/formatting.native b/tests/epub/formatting.native
index bdf86fa20..133c16120 100644
--- a/tests/epub/formatting.native
+++ b/tests/epub/formatting.native
@@ -5,14 +5,14 @@
 ,Header 2 ("",[],[]) [Str "Status",Space,Str "of",Space,Str "this",Space,Str "Document"]
 ,Para [Str "This",Space,Str "publication",Space,Str "is",Space,Str "currently",Space,Str "considered",Space,Span ("",["status"],[]) [Str "[UNDER",Space,Str "DEVELOPMENT]"],Space,Str "by",Space,Str "the",Space,Str "IDPF."]
 ,Para [Str "This",Space,Str "publication",Space,Str "is",Space,Str "part",Space,Str "of",Space,Str "version",Space,Span ("",["version"],[]) [Str "X.X"],Space,Str "of",Space,Str "the",Space,Str "EPUB",Space,Str "3.0",Space,Str "Compliance",Space,Str "Test",Space,Str "Suite",Space,Str "released",Space,Str "on",Space,RawInline (Format "html") "<time class=\"release\">",Str "TBD",RawInline (Format "html") "</time>",Str "."]
-,Para [Str "Before",Space,Str "using",Space,Str "this",Space,Str "publication",Space,Str "to",Space,Str "evaluate",Space,Str "reading",Space,Str "systems,",Space,Str "testers",Space,Str "are",Space,Str "strongly",Space,Str "encouraged",Space,Str "to",Space,Str "verify",Space,Str "that",Space,Str "they",Space,Str "have",Space,Str "the",Space,Str "latest",Space,Str "release",Space,Str "by",Space,Str "checking",Space,Str "the",Space,Str "current",Space,Str "release",Space,Str "version",Space,Str "and",Space,Str "date",Space,Str "of",Space,Str "the",Space,Str "test",Space,Str "suite",Space,Str "at",Space,Link [Str "TBD"] ("","")]
+,Para [Str "Before",Space,Str "using",Space,Str "this",Space,Str "publication",Space,Str "to",Space,Str "evaluate",Space,Str "reading",Space,Str "systems,",Space,Str "testers",Space,Str "are",Space,Str "strongly",Space,Str "encouraged",Space,Str "to",Space,Str "verify",Space,Str "that",Space,Str "they",Space,Str "have",Space,Str "the",Space,Str "latest",Space,Str "release",Space,Str "by",Space,Str "checking",Space,Str "the",Space,Str "current",Space,Str "release",Space,Str "version",Space,Str "and",Space,Str "date",Space,Str "of",Space,Str "the",Space,Str "test",Space,Str "suite",Space,Str "at",Space,Link [Str "TBD"] ("http://idpf.org/","")]
 ,Para [Str "This",Space,Str "publication",Space,Str "is",Space,Str "one",Space,Str "of",Space,Str "several",Space,Str "that",Space,Str "currently",Space,Str "comprise",Space,Str "the",Space,Str "EPUB",Space,Str "3",Space,Str "conformance",Space,Str "test",Space,Str "suite",Space,Str "for",Space,Str "reflowable",Space,Str "content.",Space,Str "The",Space,Str "complete",Space,Str "test",Space,Str "suite",Space,Str "includes",Space,Str "all",Space,Str "of",Space,Str "the",Space,Str "following",Space,Str "publications:"]
 ,OrderedList (1,DefaultStyle,DefaultDelim)
  [[Plain [Str "."]]]
 ,RawBlock (Format "html") "</section>"
 ,RawBlock (Format "html") "<section>"
 ,Header 2 ("",[],[]) [Str "About",Space,Str "this",Space,Str "Document"]
-,Para [Str "This",Space,Str "document",Space,Str "focuses",Space,Str "on",Space,Str "human-evaluated",Space,Str "binary",Space,Str "(pass/fail)",Space,Str "tests",Space,Str "in",Space,Str "a",Space,Str "reflowable",Space,Str "context.",Space,Str "Tests",Space,Str "for",Space,Str "fixed-layout",Space,Str "content",Space,Str "and",Space,Str "other",Space,Str "individual",Space,Str "tests",Space,Str "that",Space,Str "require",Space,Str "a",Space,Str "dedicated",Space,Str "epub",Space,Str "file",Space,Str "are",Space,Str "available",Space,Str "in",Space,Str "additional",Space,Str "sibling",Space,Str "documents;",Space,Str "refer",Space,Str "to",Space,Str "the",Space,Link [Str "test",Space,Str "suite",Space,Str "wiki"] ("Overview",""),Space,Str "(",Code ("",[],[]) "https://github.com/mgylling/epub-testsuite/wiki/Overview",Str ")",Space,Str "for",Space,Str "additional",Space,Str "information."]
+,Para [Str "This",Space,Str "document",Space,Str "focuses",Space,Str "on",Space,Str "human-evaluated",Space,Str "binary",Space,Str "(pass/fail)",Space,Str "tests",Space,Str "in",Space,Str "a",Space,Str "reflowable",Space,Str "context.",Space,Str "Tests",Space,Str "for",Space,Str "fixed-layout",Space,Str "content",Space,Str "and",Space,Str "other",Space,Str "individual",Space,Str "tests",Space,Str "that",Space,Str "require",Space,Str "a",Space,Str "dedicated",Space,Str "epub",Space,Str "file",Space,Str "are",Space,Str "available",Space,Str "in",Space,Str "additional",Space,Str "sibling",Space,Str "documents;",Space,Str "refer",Space,Str "to",Space,Str "the",Space,Link [Str "test",Space,Str "suite",Space,Str "wiki"] ("https://github.com/mgylling/epub-testsuite/wiki/Overview",""),Space,Str "(",Code ("",[],[]) "https://github.com/mgylling/epub-testsuite/wiki/Overview",Str ")",Space,Str "for",Space,Str "additional",Space,Str "information."]
 ,RawBlock (Format "html") "</section>"
 ,RawBlock (Format "html") "<section>"
 ,Header 2 ("",[],[]) [Str "Conventions"]
@@ -430,13 +430,13 @@
 ,Header 2 ("",[],[]) [Span ("",["nature"],[]) [Str "[REQUIRED]"],Space,Span ("",["test-id"],[]) [Str "style-410"],Space,Code ("",[],[]) "over"]
 ,Para [Str "Tests",Space,Str "whether",Space,Str "the",Space,Code ("",[],[]) "-epub-ruby-position",Space,Str "property",Space,Str "set",Space,Str "to",Space,Str "over",Space,Str "is",Space,Str "supported."]
 ,Para [RawInline (Format "html") "<ruby class=\"ruby-over\">",Strong [Str "Lorem",Space,Str "Ipsum"],Space,RawInline (Format "html") "<rp>",Str "(",RawInline (Format "html") "</rp>",RawInline (Format "html") "<rt>",Str "Lorem",Space,Str "Ipsum",RawInline (Format "html") "</rt>",RawInline (Format "html") "<rp>",Str ")",RawInline (Format "html") "</rp>",RawInline (Format "html") "</ruby>"]
-,Para [Str "If",Space,Str "the",Space,Str "Ruby",Space,Str "text",Space,Str "is",Space,Str "positioned",Space,Str "on",Space,Str "the",Space,Link [Str "over"] ("#over",""),Space,Str "side",Space,Str "of",Space,Str "the",Space,Str "ruby",Space,Str "base,",Space,Str "the",Space,Str "test",Space,Str "passes."]
+,Para [Str "If",Space,Str "the",Space,Str "Ruby",Space,Str "text",Space,Str "is",Space,Str "positioned",Space,Str "on",Space,Str "the",Space,Link [Str "over"] ("http://www.w3.org/TR/css3-writing-modes/#over",""),Space,Str "side",Space,Str "of",Space,Str "the",Space,Str "ruby",Space,Str "base,",Space,Str "the",Space,Str "test",Space,Str "passes."]
 ,RawBlock (Format "html") "</section>"
 ,RawBlock (Format "html") "<section id=\"style-411\" class=\"ctest\">"
 ,Header 2 ("",[],[]) [Span ("",["nature"],[]) [Str "[REQUIRED]"],Space,Span ("",["test-id"],[]) [Str "style-411"],Space,Code ("",[],[]) "under"]
 ,Para [Str "Tests",Space,Str "whether",Space,Str "the",Space,Code ("",[],[]) "-epub-ruby-position",Space,Str "property",Space,Str "set",Space,Str "to",Space,Str "under",Space,Str "is",Space,Str "supported."]
 ,Para [RawInline (Format "html") "<ruby class=\"ruby-under\">",Strong [Str "Lorem",Space,Str "Ipsum"],Space,RawInline (Format "html") "<rp>",Str "(",RawInline (Format "html") "</rp>",RawInline (Format "html") "<rt>",Str "Lorem",Space,Str "Ipsum",RawInline (Format "html") "</rt>",RawInline (Format "html") "<rp>",Str ")",RawInline (Format "html") "</rp>",RawInline (Format "html") "</ruby>"]
-,Para [Str "If",Space,Str "the",Space,Str "Ruby",Space,Str "text",Space,Str "is",Space,Str "positioned",Space,Str "on",Space,Str "the",Space,Link [Str "under"] ("#under",""),Space,Str "side",Space,Str "of",Space,Str "the",Space,Str "ruby",Space,Str "base,",Space,Str "the",Space,Str "test",Space,Str "passes."]
+,Para [Str "If",Space,Str "the",Space,Str "Ruby",Space,Str "text",Space,Str "is",Space,Str "positioned",Space,Str "on",Space,Str "the",Space,Link [Str "under"] ("http://www.w3.org/TR/css3-writing-modes/#under",""),Space,Str "side",Space,Str "of",Space,Str "the",Space,Str "ruby",Space,Str "base,",Space,Str "the",Space,Str "test",Space,Str "passes."]
 ,RawBlock (Format "html") "</section>"
 ,RawBlock (Format "html") "<section id=\"style-412\" class=\"ctest\">"
 ,Header 2 ("",[],[]) [Span ("",["nature"],[]) [Str "[REQUIRED]"],Space,Span ("",["test-id"],[]) [Str "style-412"],Space,Code ("",[],[]) "inter-character"]