RosettaCodeData/Task/Ordered-words/XPL0/ordered-words.xpl0
2023-07-01 13:44:08 -04:00

27 lines
1 KiB
Text

string 0; \use zero-terminated strings
int MaxLen, Pass, I, Ch, Ch0;
char Word(25);
def LF=$0A, CR=$0D, EOF=$1A;
[FSet(FOpen("unixdict.txt", 0), ^I);
MaxLen:= 0;
for Pass:= 1 to 2 do
[OpenI(3);
repeat I:= 0; Ch0:= 0;
loop [repeat Ch:= ChIn(3) until Ch # CR; \remove possible CR
if Ch=LF or Ch=EOF then
[if I > MaxLen then MaxLen:= I;
if I=MaxLen & Pass=2 then
[Word(I):= 0; Text(0, Word); CrLf(0)];
quit;
];
Word(I):= Ch;
if Ch < Ch0 then
[repeat Ch:= ChIn(3) until Ch=LF or Ch=EOF;
quit;
];
Ch0:= Ch;
I:= I+1;
];
until Ch = EOF;
];
]