RosettaCodeData/Task/Text-processing-2/Icon/text-processing-2.icon

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procedure main(A)
dups := set()
goodRecords := 0
lastDate := badFile := &null
f := A[1] | "readings.txt"
fin := open(f) | stop("Cannot open file '",f,"'")
while (fields := 0, badReading := &null, line := read(fin)) do {
line ? {
ldate := tab(many(&digits ++ '-')) | (badFile := "yes", next)
if \lastDate == ldate then insert(dups, ldate)
lastDate := ldate
while tab(many(' \t')) do {
(value := real(tab(many(&digits++'-.'))),
tab(many(' \t')),
flag := integer(tab(many(&digits++'-'))),
fields +:= 1) | (badFile := "yes")
if flag < 1 then badReading := "yes"
}
}
if fields = 24 then goodRecords +:= (/badReading, 1)
else badFile := "yes"
}
if (\badFile) then write(f," has field format issues.")
write("There are ",goodRecords," records with all good readings.")
if *dups > 0 then {
write("The following dates have multiple records:")
every writes(" ",!sort(dups))
write()
}
end