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Modula Definition | 1994-12-22 | 1.4 KB | 36 lines |
- DEFINITION MODULE WholeIO;
-
- (* Input and output of whole numbers in decimal text form over specified channels.
- The read result is of the type IOConsts.ReadResults.
- *)
-
- IMPORT IOChan;
-
- (* The text form of a signed whole number is
- ["+" | "-"], decimal digit, {decimal digit}
-
- The text form of an unsigned whole number is
- decimal digit, {decimal digit}
- *)
-
- PROCEDURE ReadInt (cid: IOChan.ChanId; VAR int: INTEGER);
- (* Skips leading spaces, and removes any remaining characters from cid that form part of a
- signed whole number. The value of this number is assigned to int. The read result is
- set to the value allRight, outOfRange, wrongFormat, endOfLine, or endOfInput.
- *)
-
- PROCEDURE WriteInt (cid: IOChan.ChanId; int: INTEGER; width: CARDINAL);
- (* Writes the value of int to cid in text form, in a field of the given minimum width. *)
-
- PROCEDURE ReadCard (cid: IOChan.ChanId; VAR card: CARDINAL);
- (* Skips leading spaces, and removes any remaining characters from cid that form part of
- an unsigned whole number. The value of this number is assigned to card. The read
- result is set to the value allRight, outOfRange, wrongFormat, endOfLine, or endOfInput.
- *)
-
- PROCEDURE WriteCard (cid: IOChan.ChanId; card: CARDINAL; width: CARDINAL);
- (* Writes the value of card to cid in text form, in a field of the given minimum width. *)
-
- END WholeIO.
-
-