advent-of-code/2023/day1/day1.2.awk

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2023-12-01 11:02:25 +00:00
BEGIN {
map["one"] = 1
map["two"] = 2
map["three"] = 3
map["four"] = 4
map["five"] = 5
map["six"] = 6
map["seven"] = 7
map["eight"] = 8
map["nine"] = 9
}
{
pos = match($0, "one|two|three|four|five|six|seven|eight|nine")
if (pos != 0) {
numeral = substr($0, RSTART, RLENGTH)
digit = map[numeral]
sub(numeral, digit)
}
print
}