decode a Mac OS Roman string to a regular Javascript string (code written in coffeescript)

gistfile1.coffee

decode_macroman = do ->
    high_chars_unicode = '''
        ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü
        †°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø
        ¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄€‹›fifl
        ‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ
        '''.replace /\n/g, ''

    (mac_roman_bytestring) ->
        char_array = for idx in [0...mac_roman_bytestring.length]
            byte = mac_roman_bytestring.charCodeAt idx
            if byte < 0x80 then String.fromCharCode byte
            else high_chars_unicode.charAt byte - 0x80
        char_array.join ''

# the cute version, with unicode in the code