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“ ”.length #=> 5
“ ”.bytesize #=> 15
“ ”.encoding
#=> #<Encoding:UTF-8>
2008 11 9 13

?a #=> “a”
? #=> “ ”
?அ #=> “அ”
2008 11 9 14

File.open(“/path/to/file”, “r:EUC-JP”) {|f|
f.read.encoding #=> #<Encoding:EUC-JP>
}
File.open(“/path/to/file”, “r:EUC-JP:CP932”) {|f|
f.read.encoding #=> #<Encoding:Windows-31J>
}
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