gcc/m2/gm2-libs-iso/ConvTypes.def

   1 (* Library module defined by the International Standard
   2    Information technology - programming languages
   3    BS ISO/IEC 10514-1:1996E Part 1: Modula-2, Base Language.
   4
   5    Copyright ISO/IEC (International Organization for Standardization
   6    and International Electrotechnical Commission) 1996-2021.
   7
   8    It may be freely copied for the purpose of implementation (see page
   9    707 of the Information technology - Programming languages Part 1:
  10    Modula-2, Base Language.  BS ISO/IEC 10514-1:1996).  *)
  11
  12 DEFINITION MODULE ConvTypes;
  13
  14   (* Common types used in the string conversion modules *)
  15
  16 TYPE
  17   ConvResults =     (* Values of this type are used to express the format of a string *)
  18   (
  19     strAllRight,    (* the string format is correct for the corresponding conversion *)
  20     strOutOfRange,  (* the string is well-formed but the value cannot be represented *)
  21     strWrongFormat, (* the string is in the wrong format for the conversion *)
  22     strEmpty        (* the given string is empty *)
  23   );
  24
  25   ScanClass =  (* Values of this type are used to classify input to finite state scanners *)
  26   (
  27     padding,   (* a leading or padding character at this point in the scan - ignore it *)
  28     valid,     (* a valid character at this point in the scan - accept it *)
  29     invalid,   (* an invalid character at this point in the scan - reject it *)
  30     terminator (* a terminating character at this point in the scan (not part of token) *)
  31   );
  32
  33   ScanState =  (* The type of lexical scanning control procedures *)
  34     PROCEDURE (CHAR, VAR ScanClass, VAR ScanState);
  35
  36 END ConvTypes.
  37