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@stepheneb /possible_fix.rb
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def self.binary?(file)
s = File.read(file, 1024) or return false
set_encoding(s)
begin
if s[0, 2] == Marshal.dump('')[0, 2] then
true
elsif file =~ /erb\.rb$/ then
false
elsif s.scan(/<%|%>/).length >= 4 || s.index("\x00") then
true
elsif 0.respond_to? :fdiv then
s.count("^ -~\t\r\n").fdiv(s.size) > 0.3
else # HACK 1.8.6
(s.count("^ -~\t\r\n").to_f / s.size) > 0.3
end
rescue ArgumentError => e
# puts file
# puts e
# puts caller
true
end
end
file = "/Users/stephen/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/irb/lc/ja/help-message"
size = File::Stat.new(file).size
puts "file: #{File.basename(file)}, size (bytes) #{size}"
puts "reading 1024 bytes into var: f"
f = File.read(file, 1024)
puts "f.encoding: #{f.encoding}"
puts "f.valid_encoding: #{f.valid_encoding?}"
if /coding[=:]\s*([^\s;]+)/i =~ f[%r"\A(?:#!.*\n)?.*\n"]
if enc = ::Encoding.find($1)
puts "f.force_encoding(#{enc})"
f.force_encoding(enc)
end
end
puts "f.encoding: #{f.encoding}"
puts "f.valid_encoding: #{f.valid_encoding?}"
puts
f2 = ""
f2.force_encoding(enc)
puts "f2.length (chars): #{f2.length}"
puts "f2.encoding: #{f2.encoding}"
puts "f2.valid_encoding: #{f2.valid_encoding?}"
begin
f.each_char { |c| f2 << c }
rescue ArgumentError
end
puts "f2.length (chars): #{f2.length}"
puts "f2.encoding: #{f2.encoding}"
puts "f2.valid_encoding: #{f2.valid_encoding?}"
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