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109 lines
2.9 KiB
Ruby
Executable File
109 lines
2.9 KiB
Ruby
Executable File
#!/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -wKU
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# == Synopsis
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#
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# gen_html: generates HTML file from markdown and optional template(s)
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#
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# == Usage
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#
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# gen_html [OPTION] ... [FILE]
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#
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# --help:
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# show help
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#
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# -t/--title «title»
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# make «title» available to template (as `page_name`)
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#
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# -h/--header «file»
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# prepend «file» as header (erb)
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#
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# -f/--footer «file»
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# append «file» as footer (erb)
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#
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# FILE: The markdown document to read (defaults to stdin)
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require 'getoptlong'
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require 'rdoc/usage'
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require 'erb'
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def expand_tpl(str, binding)
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ERB.new(str, 0, '%-<>').result(binding)
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end
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def expand_tpl_file(path, binding)
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expand_tpl(File.read(path), binding)
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end
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def find_exe(cmd)
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dir = ENV['PATH'].split(':').find { |dir| File.executable? File.join(dir, cmd) }
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dir ? "#{dir}/#{cmd}" : nil
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end
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def wrap_key_equivalents(src)
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src.gsub(/ `([^`]+⇥)` | \( ([⌃⌥⇧⌘↓↑←→]+) \) | ( [⎋⇥↩⌅⌫⌦] | [⌃⌥⇧⌘]+ ( (?=[ ]|-\w+) | F\d+ | . ) ) /x) do
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if $1
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"<kbd class='tabTrigger'>#$1</kbd>"
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elsif $2
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"(<kbd class='keyEquivalent'>#$2</kbd>)"
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else
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"<kbd class='keyEquivalent'>#$&</kbd>"
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end
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end
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end
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def wrap_authors(src)
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src.gsub(/ \*\[ (.+?) \]\* /x) do
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"<span class='credit'>#$1</span>"
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end
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end
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def wrap_in_article(html)
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html.gsub(/<h2\b.*>.*<\/h2>(?m:.*?)(?=\s*<h2|\z)/) do
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"<article>\n#$&\n</article>\n"
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end
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end
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opts = GetoptLong.new(
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[ '--title', '-t', GetoptLong::REQUIRED_ARGUMENT ],
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[ '--header', '-h', GetoptLong::REQUIRED_ARGUMENT ],
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[ '--footer', '-f', GetoptLong::REQUIRED_ARGUMENT ],
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[ '--warn', '-w', GetoptLong::NO_ARGUMENT ],
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[ '--help', GetoptLong::NO_ARGUMENT ]
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)
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title, header, footer, warn = 'untitled', nil, nil, false
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opts.each do |opt, arg|
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case opt
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when '--help'
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RDoc::usage
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when '--header'
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header = arg
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when '--footer'
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footer = arg
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when '--warn'
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warn = true
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end
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end
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MARKDOWN_COMPILERS = %w[ multimarkdown ]
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filter = MARKDOWN_COMPILERS.find { |exe| find_exe exe }
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abort "Unable to find a markdown compiler" if filter.nil?
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filters = "|#{filter} --nosmart"
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document = ARGF.read
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document = wrap_authors(wrap_key_equivalents(document))
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head, body = document.scan(/\A((?:^\w+:\s+.*$\n)*)\n?((?m:.*))\z/).flatten
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tmp = head.scan(/^(\w+):\s+(.*)$/).collect { |pair| [pair[0].downcase, pair[1].strip] }
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headers = Hash[*tmp.flatten]
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page_title = headers['title'] || title
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css_files = headers['css'].to_s.split(/,\s*/)
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js_files = headers['js'].to_s.split(/,\s*/)
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meta_data = Hash[*headers['meta'].to_s.scan(/(.*?)="(.*?)"(?:,\s*)?/).flatten]
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STDOUT << expand_tpl_file(header, binding) unless header.nil?
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STDOUT << open(filters, 'r+') { |io| io << body; io.close_write; wrap_in_article(expand_tpl(io.read, binding)) }
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STDOUT << expand_tpl_file(footer, binding) unless footer.nil?
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