Anonymous user
Levenshtein distance: Difference between revisions
m
→{{header|Icon}} and {{header|Unicon}}
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Line 265:
every process(!&input)
end
procedure process(s)
s ? (s1 := tab(upto(' \t')), s2 := (tab(many(' \t')), tab(0))) | fail▼
▲ s2 := (tab(many(' \t')), tab(0))
▲ write("'",s1,"' -> '",s2,"' = ", levenshtein(s1,s2))
end
procedure levenshtein(s, t)
if (n := *s+1) =
if (m := *t+1) =
every !(d := list(n,0)) := list(m, 0)
every i := 1 to max(n,m) do d[i,1] := d[1,i] := i
Line 285 ⟶ 280:
min(d[iM1,j], d[i,jM1:=j-1],
d[iM1,jM1] + if s_i == t[jM1] then -1 else 0) + 1
return d[n,m]-1
end</lang>
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