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⟦12592bc5b⟧ TextFile

    Length: 768 (0x300)
    Types: TextFile
    Names: »CHECK3.PAS«

Derivation

└─⟦08ea08c61⟧ Bits:30003924 PolyPascal programmer
    └─ ⟦this⟧ »CHECK3.PAS« 
└─⟦092727b26⟧ Bits:30005927 Demoprogrammer til Pascal bog (Jet-80)
    └─ ⟦this⟧ »CHECK3.PAS« 
└─⟦3702e543b⟧ Bits:30003064 Demoprogrammer A-J til Pascal bog
    └─ ⟦this⟧ »CHECK3.PAS« 
└─⟦f983c2ef3⟧ Bits:30004681 Pascal opgaver (Butler)
    └─ ⟦this⟧ »CHECK3.PAS«

TextFile

PROGRAM check3;
  
  TYPE
    str40 = STRING(.40.);
    charset = SET OF CHAR;
    
  FUNCTION laestegn(ledetekst : str40; gyldigtegn : charset) : CHAR;
    
    VAR
      ch : CHAR;
    
    BEGIN (* laestegn *)
      WRITE(ledetekst);
      REPEAT
        READ(KBD, ch);
      UNTIL ch IN gyldigtegn;
      WRITELN(ch);
      laestegn := ch;
    END; (* laestegn *)
    
  BEGIN (* check3 *)
    WRITELN(laestegn('Vælg et af følgende tegn (4 ^ m k): ',
            (.'4', '^', 'm', 'k'.)));
    WRITELN(laestegn('Slut (j/n)? ', (.'J', 'j', 'N', 'n'.)));
    WRITELN(laestegn('Tast et ciffer: ', (.'0' .. '9'.)));
  END. (* check3 *)
«eof»