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IO Module UNICHAR

Spec.IOModuleUNICHAR History

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2010-05-24 12:46 by benjk -
Changed lines 3-4 from:

(* File based I/O for type UNICHAR *)

to:

(* I/O Module for Type UNICHAR *)

Changed lines 7-18 from:

PROCEDURE Read( infile : File; VAR ch : UNICHAR ); (* Attempts to read a UNICHAR character from input stream infile and, if successful, 

   assigns the corresponding value to ch.  The file status of infile is set accordingly
   to any of allRight, endOfLine, or endOfInput. *)

PROCEDURE Write( outfile : File; ch : UNICHAR ); (* Writes character ch to output stream outfile, unformatted. *)

PROCEDURE Write F?( outfile : File; fmtStr : ARRAY OF UNICHAR; items : CARDINAL; 

                  VARIADIC v[items] OF ch : UNICHAR );

(* Writes a formatted textual representation of one or more UNICHAR values to output stream outfile. The value 

   of parameter items is calculated and inserted automatically. The output format is determined by fmtStr. *)
to:

PROCEDURE Read ( infile : File; VAR ch : UNICHAR ); (* Reads a UNICHAR value from stream infile 

   - any leading whitespace is skipped
   - the character being read is removed from infile
   - the code point of the character value read is assigned to ch
   - the file status is set to any of:
     success, outOfRange, wrongFormat, endOfLine, or endOfInput. This
   procedure is substituted for invocations of READ with a UNICHAR argument.*)

PROCEDURE Write ( outfile : File; ch : UNICHAR ); (* Writes the textual representation of UNICHAR ch to stream outfile. This 

   procedure is substituted for invocations of WRITE with a UNICHAR argument.*)

PROCEDURE Write F? ( outfile : File; 

                   CONST fmtStr : ARRAY OF CHAR;
                   items        : VARIADIC OF UNICHAR );

(* Writes a formatted textual representation of one or more UNICHAR values to 

   output stream outfile. The output format is determined by fmtStr. This
   procedure is substituted for invocations of WRITEF with one or more
   UNICHAR arguments. *)
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