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STR.PAS
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Pascal/Delphi Source File
|
1989-07-17
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1KB
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68 lines
PROGRAM StringConversion;
{ Convert ASCIIZ strings and Turbo Pascal strings }
TYPE ASCIIZString = ARRAY[ 0 ... 255 ] OF Char;
ASCIIZptr = ASCIIZString;
VAR a : ASCIIZString;
s : String;
{$L STR.OBJ}
{ Convert an ASCIIZ string (a) to a Pascal string (s) }
PROCEDURE ASCIIZtoStr( a: ASCIIZString; VAR s : String );
EXTERNAL;
(*
VAR len : Integer;
BEGIN
len := 0;
WHILE ( len < 255 ) AND ( a[ len ] <> Chr( 0 ) ) DO
BEGIN
len := len + 1;
s[ len ] := a[ len - 1]
END; {while}
s[ 0 ] := Chr( len )
END; {ASCIIZtoStr }
*)
{ Convert a Pascal string (s) to an ASCIIZ string (a) }
PROCEDURE StrToASCIIZ( s : String; VAR a : ASCIIZString );
EXTERNAL;
(*
VAR len, i : Integer;
BEGIN
len := Length( s);
FOR i := 1 TO len DO
a[ i - 1 ] := s[ i ];
a[ len ] := Chr( 0 )
END; {StrToASCIIZ }
*)
{ Display an ASCIIZ string }
PEOCEDURE ShowASCIIZ( a : ASCIIZString );
VAR i : Integer;
BEGIN
i := 0;
WHILE ( i < 255 ) AND ( a[ i ] <> Chr(0) ) DO
BEGIN
Write( a[ i ] );
i := i + 1
END { while }
END; { ShowASCIIZ }
BEGIN
s := 'This is a test';
StrtoASCIIZ( s, a );
ShowASCIIZ( a );
Writeln;
s := '';
ASCIIZtoStr( a, s );
Writeln( s )
END.