s-wchcnv.ads   [plain text]


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--  This package contains generic subprograms used for converting between
--  sequences of Character and Wide_Character. All access to wide character
--  sequences is isolated in this unit.

with System.WCh_Con;

package System.WCh_Cnv is
pragma Pure (WCh_Cnv);

   generic
      with function In_Char return Character;
   function Char_Sequence_To_Wide_Char
     (C    : Character;
      EM   : System.WCh_Con.WC_Encoding_Method)
      return Wide_Character;
   --  C is the first character of a sequence of one or more characters which
   --  represent a wide character sequence. Calling the function In_Char for
   --  additional characters as required, Char_To_Wide_Char returns the
   --  corresponding wide character value. Constraint_Error is raised if the
   --  sequence of characters encountered is not a valid wide character
   --  sequence for the given encoding method.

   generic
      with procedure Out_Char (C : Character);
   procedure Wide_Char_To_Char_Sequence
     (WC : Wide_Character;
      EM : System.WCh_Con.WC_Encoding_Method);
   --  Given a wide character, converts it into a sequence of one or
   --  more characters, calling the given Out_Char procedure for each.
   --  Constraint_Error is raised if the given wide character value is
   --  not a valid value for the given encoding method.

end System.WCh_Cnv;