зеркало из https://github.com/github/ruby.git
117 строки
2.4 KiB
Ruby
117 строки
2.4 KiB
Ruby
#!/usr/bin/env ruby
|
|
# $originalId: ruby2html.rb,v 1.2 2005/09/23 22:53:47 aamine Exp $
|
|
|
|
TEMPLATE_LINE = __LINE__ + 2
|
|
TEMPLATE = <<-EndTemplate
|
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=<%= encoding %>">
|
|
<% if css %>
|
|
<link rel="stylesheet" type="text/css" href="<%= css %>">
|
|
<% end %>
|
|
<title><%= File.basename(f.path) %></title>
|
|
</head>
|
|
<body>
|
|
<pre>
|
|
<%
|
|
if print_line_number
|
|
Ruby2HTML.compile(f).each_with_index do |line, idx|
|
|
%><%= sprintf('%4d %s', idx+1, line) %><%
|
|
end
|
|
else
|
|
%><%= Ruby2HTML.compile(f) %><%
|
|
end
|
|
%>
|
|
</pre>
|
|
</body>
|
|
</html>
|
|
EndTemplate
|
|
|
|
require 'ripper'
|
|
require 'stringio'
|
|
require 'cgi'
|
|
require 'erb'
|
|
require 'optparse'
|
|
|
|
def main
|
|
encoding = 'us-ascii'
|
|
css = nil
|
|
print_line_number = false
|
|
parser = OptionParser.new
|
|
parser.banner = "Usage: #{File.basename($0)} [-l] [<file>...]"
|
|
parser.on('--encoding=NAME', 'Character encoding [us-ascii].') {|name|
|
|
encoding = name
|
|
}
|
|
parser.on('--css=URL', 'Set a link to CSS.') {|url|
|
|
css = url
|
|
}
|
|
parser.on('-l', '--line-number', 'Show line number.') {
|
|
print_line_number = true
|
|
}
|
|
parser.on('--help', 'Prints this message and quit.') {
|
|
puts parser.help
|
|
exit 0
|
|
}
|
|
begin
|
|
parser.parse!
|
|
rescue OptionParser::ParseError => err
|
|
$stderr.puts err
|
|
$stderr.puts parser.help
|
|
exit 1
|
|
end
|
|
puts ruby2html(ARGF, encoding, css, print_line_number)
|
|
end
|
|
|
|
class ERB
|
|
attr_accessor :lineno
|
|
|
|
remove_method :result
|
|
def result(b)
|
|
eval(@src, b, (@filename || '(erb)'), (@lineno || 1))
|
|
end
|
|
end
|
|
|
|
def ruby2html(f, encoding, css, print_line_number)
|
|
if RUBY_VERSION >= '2.6'
|
|
erb = ERB.new(TEMPLATE, trim_mode: '>')
|
|
else
|
|
erb = ERB.new(TEMPLATE, nil, '>')
|
|
end
|
|
erb.filename = __FILE__
|
|
erb.lineno = TEMPLATE_LINE
|
|
erb.result(binding())
|
|
end
|
|
|
|
class Ruby2HTML < Ripper::Filter
|
|
def Ruby2HTML.compile(f)
|
|
buf = StringIO.new
|
|
Ruby2HTML.new(f).parse(buf)
|
|
buf.string
|
|
end
|
|
|
|
def on_default(event, tok, f)
|
|
f << CGI.escapeHTML(tok)
|
|
end
|
|
|
|
def on_kw(tok, f)
|
|
f << %Q[<span class="resword">#{CGI.escapeHTML(tok)}</span>]
|
|
end
|
|
|
|
def on_comment(tok, f)
|
|
f << %Q[<span class="comment">#{CGI.escapeHTML(tok.rstrip)}</span>\n]
|
|
end
|
|
|
|
def on_tstring_beg(tok, f)
|
|
f << %Q[<span class="string">#{CGI.escapeHTML(tok)}]
|
|
end
|
|
|
|
def on_tstring_end(tok, f)
|
|
f << %Q[#{CGI.escapeHTML(tok)}</span>]
|
|
end
|
|
end
|
|
|
|
if $0 == __FILE__
|
|
main
|
|
end
|