Created
July 6, 2011 03:40
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| require 'ripper' | |
| require 'cgi' | |
| require 'digest/sha1' | |
| class Ruby2HTML < Ripper::Filter | |
| def on_default(event, tok, f) | |
| f << CGI.escapeHTML(tok) | |
| end | |
| private | |
| def respond_to?(name, priv = false) | |
| !!event_pattern_matching(name) or super | |
| end | |
| def method_missing(name, *args) | |
| if event = event_pattern_matching(name) | |
| tok, f = args | |
| f << %Q[<span class="#{event}">#{CGI.escapeHTML(tok)}</span>] | |
| else | |
| super | |
| end | |
| end | |
| def event_pattern_matching(on_name) | |
| on_name.to_s =~ /^on_(.+)$/ and Ripper::SCANNER_EVENTS.include? $1.to_sym and $1 | |
| end | |
| end | |
| if $0 == __FILE__ | |
| def css | |
| "".tap do |css| | |
| Ripper::SCANNER_EVENTS.each do |event| | |
| color = Digest::SHA1.hexdigest(event.to_s)[0, 3] | |
| css << ".#{event} { color: ##{color} }\n" | |
| end | |
| end | |
| end | |
| def html(out = $stdout, &block) | |
| out.write(<<-EOL) | |
| <html> | |
| <head> | |
| <style type="text/css"> | |
| * { font-family: monospace } | |
| pre { padding: 10px; background: #333; } | |
| #{css} | |
| </style> | |
| </head> | |
| <body> | |
| <pre> | |
| #{yield} | |
| </pre> | |
| </body> | |
| </html> | |
| EOL | |
| end | |
| html do | |
| Ruby2HTML.new(ARGF).parse('') | |
| end | |
| end |
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ruby iro.rb NANIKA_RUBY_SCRIPT.rb > hoge.html