class Html2Doc
NOKOHEAD = <<~HERE.freeze
<!DOCTYPE html SYSTEM
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head> <title></title> <meta charset="UTF-8" /> </head>
<body> </body> </html>
HERE
def to_xhtml(xml)
xml.gsub!(/<\?xml[^>]*>/, "")
unless /<!DOCTYPE /.match? xml
xml = '<!DOCTYPE html SYSTEM
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">' + xml
end
xml = xml.gsub(/<!--\s*\[([^\]]+)\]>/, "<!-- MSWORD-COMMENT \\1 -->")
.gsub(/<!\s*\[endif\]\s*-->/, "<!-- MSWORD-COMMENT-END -->")
Nokogiri::XML.parse(xml)
end
DOCTYPE = <<~DOCTYPE.freeze
<!DOCTYPE html SYSTEM "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
DOCTYPE
def from_xhtml(xml)
xml.to_xml.sub(%{ xmlns="http://www.w3.org/1999/xhtml"}, "")
.sub(DOCTYPE, "").gsub(%{ />}, "/>")
.gsub(/<!-- MSWORD-COMMENT (.+?) -->/, "<!--[\\1]>")
.gsub(/<!-- MSWORD-COMMENT-END -->/, "<![endif]-->")
.gsub("\n-->\n", "\n-->\n")
end
def msword_fix(doc)
# brain damage in MSWord parser
doc.gsub!(%r{<w:DoNotOptimizeForBrowser></w:DoNotOptimizeForBrowser>},
"<w:DoNotOptimizeForBrowser/>")
doc.gsub!(%r{<span style="mso-special-character:footnote"/>},
'<span style="mso-special-character:footnote"></span>')
doc.gsub!(%r{<div style="mso-element:footnote-list"></div>},
'<div style="mso-element:footnote-list"/>')
doc.gsub!(%r{(<a style="mso-comment-reference:[^>/]+)/>}, "\\1></a>")
doc.gsub!(%r{<link rel="File-List"}, "<link rel=File-List")
doc.gsub!(%r{<meta http-equiv="Content-Type"},
"<meta http-equiv=Content-Type")
doc.gsub!(%r{></m:jc>}, "/>")
doc.gsub!(%r{></v:stroke>}, "/>")
doc.gsub!(%r{></v:f>}, "/>")
doc.gsub!(%r{></v:path>}, "/>")
doc.gsub!(%r{></o:lock>}, "/>")
doc.gsub!(%r{></v:imagedata>}, "/>")
doc.gsub!(%r{></w:wrap>}, "/>")
doc.gsub!(%r{<(/)?m:(span|em)\b}, "<\\1\\2")
doc.gsub!(%r{&tab;|&tab;},
'<span style="mso-tab-count:1">  </span>')
doc.split(%r{(<m:oMath>|</m:oMath>)}).each_slice(4).map do |a|
a.size > 2 and a[2] = a[2].gsub(/>\s+</, "><")
a
end.join
end
PRINT_VIEW = <<~XML.freeze
<xml>
<w:WordDocument>
<w:View>Print</w:View>
<w:Zoom>100</w:Zoom>
<w:DoNotOptimizeForBrowser/>
</w:WordDocument>
</xml>
<meta http-equiv='Content-Type' content="text/html; charset=utf-8"/>
XML
def namespace(root)
{ o: "urn:schemas-microsoft-com:office:office",
w: "urn:schemas-microsoft-com:office:word",
v: "urn:schemas-microsoft-com:vml",
m: "http://schemas.microsoft.com/office/2004/12/omml" }.each { |k, v| root.add_namespace_definition(k.to_s, v) }
end
def rootnamespace(root)
root.add_namespace(nil, "http://www.w3.org/TR/REC-html40")
end
end