DEFINITION MODULE ConvTypes;

(* Proposed BSI/ISO Standard Modula-2 I/O Library
 * Copyright Roger Henry, University of Nottingham
 * Version WG/4.01, February 1989
 * Permission is given to copy this Definition Module, with the
 * copyright notice intact, for the purposes of evaluation and test.
 * At the stage of a formal draft standard, Copyright will be transferred
 * to BSI (and through BSI to other recognised standards bodies).
 * Status: for review by BSI/IST/5/13;
           for review by ISO/IEC JTC1/SC22/WG13
 -- * This copy editted to conform to D105 by kjg September 1989 *--
*)

    (* result of a conversion operation *)

TYPE
  ConvResults = (
    allRight,     (* data is as expected or as required *)
    outOfRange,   (* data cannot be represented         *)
    wrongFormat,  (* data not in expected format        *)
    noData,       (* no data or insufficient data       *)
    noRoom);      (* no room to store input data        *)

  (* types for lexical scanners *)

TYPE
  ScanProgress = (
    ignore,       (* leading or padding character       *)
    accept,       (* character that was expected        *)
    reject,       (* character that was not expected    *)
    stop);        (* character that terminates the item *)

  ScanProc = PROCEDURE(CHAR, VAR ScanProgress, VAR ScanProc);

  (* type and constants for alignment of text *)

  Alignment = (left, centre, right);

END ConvTypes.