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Direktori : /proc/self/root/opt/alt/ruby18/lib64/ruby/1.8/ |
Current File : //proc/self/root/opt/alt/ruby18/lib64/ruby/1.8/kconv.rb |
# # kconv.rb - Kanji Converter. # # $Id: kconv.rb 11708 2007-02-12 23:01:19Z shyouhei $ # # ---- # # kconv.rb implements the Kconv class for Kanji Converter. Additionally, # some methods in String classes are added to allow easy conversion. # require 'nkf' # # Kanji Converter for Ruby. # module Kconv # # Public Constants # #Constant of Encoding # Auto-Detect AUTO = NKF::AUTO # ISO-2022-JP JIS = NKF::JIS # EUC-JP EUC = NKF::EUC # Shift_JIS SJIS = NKF::SJIS # BINARY BINARY = NKF::BINARY # NOCONV NOCONV = NKF::NOCONV # ASCII ASCII = NKF::ASCII # UTF-8 UTF8 = NKF::UTF8 # UTF-16 UTF16 = NKF::UTF16 # UTF-32 UTF32 = NKF::UTF32 # UNKNOWN UNKNOWN = NKF::UNKNOWN # # Private Constants # # Revision of kconv.rb REVISION = %q$Revision: 11708 $ #Regexp of Encoding # Regexp of Shift_JIS string (private constant) RegexpShiftjis = /\A(?: [\x00-\x7f\xa1-\xdf] | [\x81-\x9f\xe0-\xfc][\x40-\x7e\x80-\xfc] )*\z/nx # Regexp of EUC-JP string (private constant) RegexpEucjp = /\A(?: [\x00-\x7f] | \x8e [\xa1-\xdf] | \x8f [\xa1-\xfe] [\xa1-\xfe] | [\xa1-\xfe] [\xa1-\xfe] )*\z/nx # Regexp of UTF-8 string (private constant) RegexpUtf8 = /\A(?: [\x00-\x7f] | [\xc2-\xdf] [\x80-\xbf] | \xe0 [\xa0-\xbf] [\x80-\xbf] | [\xe1-\xef] [\x80-\xbf] [\x80-\xbf] | \xf0 [\x90-\xbf] [\x80-\xbf] [\x80-\xbf] | [\xf1-\xf3] [\x80-\xbf] [\x80-\xbf] [\x80-\xbf] | \xf4 [\x80-\x8f] [\x80-\xbf] [\x80-\xbf] )*\z/nx # # Public Methods # # call-seq: # Kconv.kconv(str, out_code, in_code = Kconv::AUTO) # # Convert <code>str</code> to out_code. # <code>out_code</code> and <code>in_code</code> are given as constants of Kconv. # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want to decode them, use NKF.nkf. def kconv(str, out_code, in_code = AUTO) opt = '-' case in_code when ::NKF::JIS opt << 'J' when ::NKF::EUC opt << 'E' when ::NKF::SJIS opt << 'S' when ::NKF::UTF8 opt << 'W' when ::NKF::UTF16 opt << 'W16' end case out_code when ::NKF::JIS opt << 'j' when ::NKF::EUC opt << 'e' when ::NKF::SJIS opt << 's' when ::NKF::UTF8 opt << 'w' when ::NKF::UTF16 opt << 'w16' when ::NKF::NOCONV return str end opt = '' if opt == '-' ::NKF::nkf(opt, str) end module_function :kconv # # Encode to # # call-seq: # Kconv.tojis(str) -> string # # Convert <code>str</code> to ISO-2022-JP # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-jxm0', str). def tojis(str) ::NKF::nkf('-jm', str) end module_function :tojis # call-seq: # Kconv.toeuc(str) -> string # # Convert <code>str</code> to EUC-JP # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-exm0', str). def toeuc(str) ::NKF::nkf('-em', str) end module_function :toeuc # call-seq: # Kconv.tosjis(str) -> string # # Convert <code>str</code> to Shift_JIS # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-sxm0', str). def tosjis(str) ::NKF::nkf('-sm', str) end module_function :tosjis # call-seq: # Kconv.toutf8(str) -> string # # Convert <code>str</code> to UTF-8 # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-wxm0', str). def toutf8(str) ::NKF::nkf('-wm', str) end module_function :toutf8 # call-seq: # Kconv.toutf16(str) -> string # # Convert <code>str</code> to UTF-16 # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-w16xm0', str). def toutf16(str) ::NKF::nkf('-w16m', str) end module_function :toutf16 # # guess # # call-seq: # Kconv.guess(str) -> integer # # Guess input encoding by NKF.guess2 def guess(str) ::NKF::guess(str) end module_function :guess # call-seq: # Kconv.guess_old(str) -> integer # # Guess input encoding by NKF.guess1 def guess_old(str) ::NKF::guess1(str) end module_function :guess_old # # isEncoding # # call-seq: # Kconv.iseuc(str) -> obj or nil # # Returns whether input encoding is EUC-JP or not. # # *Note* don't expect this return value is MatchData. def iseuc(str) RegexpEucjp.match( str ) end module_function :iseuc # call-seq: # Kconv.issjis(str) -> obj or nil # # Returns whether input encoding is Shift_JIS or not. # # *Note* don't expect this return value is MatchData. def issjis(str) RegexpShiftjis.match( str ) end module_function :issjis # call-seq: # Kconv.isutf8(str) -> obj or nil # # Returns whether input encoding is UTF-8 or not. # # *Note* don't expect this return value is MatchData. def isutf8(str) RegexpUtf8.match( str ) end module_function :isutf8 end class String # call-seq: # String#kconv(out_code, in_code = Kconv::AUTO) # # Convert <code>self</code> to out_code. # <code>out_code</code> and <code>in_code</code> are given as constants of Kconv. # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want to decode them, use NKF.nkf. def kconv(out_code, in_code=Kconv::AUTO) Kconv::kconv(self, out_code, in_code) end # # to Encoding # # call-seq: # String#tojis -> string # # Convert <code>self</code> to ISO-2022-JP # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-jxm0', str). def tojis; Kconv.tojis(self) end # call-seq: # String#toeuc -> string # # Convert <code>self</code> to EUC-JP # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-exm0', str). def toeuc; Kconv.toeuc(self) end # call-seq: # String#tosjis -> string # # Convert <code>self</code> to Shift_JIS # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-sxm0', str). def tosjis; Kconv.tosjis(self) end # call-seq: # String#toutf8 -> string # # Convert <code>self</code> to UTF-8 # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-wxm0', str). def toutf8; Kconv.toutf8(self) end # call-seq: # String#toutf16 -> string # # Convert <code>self</code> to UTF-16 # # *Note* # This method decode MIME encoded string and # convert halfwidth katakana to fullwidth katakana. # If you don't want it, use NKF.nkf('-w16xm0', str). def toutf16; Kconv.toutf16(self) end # # is Encoding # # call-seq: # String#iseuc -> obj or nil # # Returns whether <code>self</code>'s encoding is EUC-JP or not. # # *Note* don't expect this return value is MatchData. def iseuc; Kconv.iseuc(self) end # call-seq: # String#issjis -> obj or nil # # Returns whether <code>self</code>'s encoding is Shift_JIS or not. # # *Note* don't expect this return value is MatchData. def issjis; Kconv.issjis(self) end # call-seq: # String#isutf8 -> obj or nil # # Returns whether <code>self</code>'s encoding is UTF-8 or not. # # *Note* don't expect this return value is MatchData. def isutf8; Kconv.isutf8(self) end end