2021-02-06 15:50:02 +01:00
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# lib_add_head_tail_html.rb
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# add header and tail to body (html)
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def add_head_tail_html html_file
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2021-03-03 15:45:54 +01:00
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sample_md = <<'EOS'
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---
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title: 'Gtk4 tutorial for beginners'
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---
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# sample header
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Main contents begin here.
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~~~{.C .numberLines}
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int main(int argc, char **argv) {
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}
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~~~
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|English|Japanese|
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|:-----:|:------:|
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|potato|jagaimo|
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|carrot|ninjin|
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|onion|tamanegi|
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2021-02-06 15:50:02 +01:00
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EOS
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2021-03-03 15:45:54 +01:00
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File.write "sample.md", sample_md
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if (! system("pandoc", "-s", "-o", "sample.html", "sample.md"))
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raise ("add_head_tail_html: pandoc retuns error status #{$?}.\n")
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end
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sample_html = File.read("sample.html")
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sample_html.gsub!(/<html xmlns="http:\/\/www.w3.org\/1999\/xhtml" lang="" xml:lang="">/,'<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">')
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head = []
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sample_html.each_line do |l|
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if l =~ /<\/head>/
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break
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elsif l != "\n"
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head << l
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end
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end
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i = head.find_index { |line| line =~ /<\/style>/}
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raise "No </style> tag in sample.html which is generated by pandoc." unless i.instance_of?(Integer)
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head.insert(i, " body {width: 1080px; margin: 0 auto; font-size: large;}\n")
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head.insert(i, " h2 {padding: 10px; background-color: #d0f0d0; }\n")
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head.insert(i, " div.sourceCode { margin: 10px; padding: 16px 10px 8px 10px; border: 2px solid silver; background-color: ghostwhite; overflow-x:scroll}\n")
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head.insert(i, " pre:not(.sourceCode) { margin: 10px; padding: 16px 10px 8px 10px; border: 2px solid silver; background-color: ghostwhite; overflow-x:scroll}\n")
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head.insert(i, " table {margin-left: auto; margin-right: auto; border-collapse: collapse; border: 1px solid;}\n")
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head.insert(i, " th {padding: 2px 6px; border: 1px solid; background-color: ghostwhite;}\n")
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head.insert(i, " td {padding: 2px 6px; border: 1px solid;}\n")
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head.insert(i, " img {display: block; margin-left: auto; margin-right: auto;}\n")
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head.insert(i, " figcaption {text-align: center;}\n")
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head << "</head>\n"
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head << "<body>\n"
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head = head.join
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2021-02-06 15:50:02 +01:00
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tail=<<'EOS'
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</body>
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</html>
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EOS
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body = File.read(html_file)
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File.write(html_file, head+body+tail)
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2021-03-03 15:45:54 +01:00
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end
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