1
|
local a,b,c,d,e,f,g,h,i,j=string.len,string.byte,math.min,assert,pairs,ipairs,type,unpack,table.insert,table.sort;local k={}local l,m,n,o,p,q,r,s,t="Damerau","Levenshtein","Distance","Ratio","Fuzzy","Find","Sort","_extended","Hamming"local u,v,w,x,y,z,A,B,C,D,E,F=m..n..s,m..n,m..o,l..m..n..s,l..m..n,l..m..o,p..q..n,p..q..o,p..r..n,p..r..o,t..n,t..o;local function G(H,I,J,K,L,...)local M,N=a(H),a(I)local O={}for P=0,M do O[P]={}for Q=0,N do O[P][Q]=0 end end;for P=1,M do O[P][0]=P end;for Q=1,N do O[0][Q]=Q end;for Q=1,N do for P=1,M do local R=b(H,P)local S=b(I,Q)O[P][Q]=c(O[P-1][Q]+L,O[P][Q-1]+J,O[P-1][Q-1]+(R==S and 0 or K))if arg[1]and P>1 and Q>1 and R==b(I,Q-1)and b(H,P-1)==S then O[P][Q]=c(O[P][Q],O[P-2][Q-2]+(R==S and 0 or arg[2]))end end end;return O[M][N]end;k[u]=function(H,I,J,K,L)return G(H,I,J,K,L)end;k.ld_e=k[u]k[v]=function(H,I)return k.ld_e(H,I,1,1,1)end;k.ld=k[v]k[w]=function(H,I)return k.ld(H,I)/a(H)end;k.lr=k[w]k[x]=function(H,I,J,K,L,T)return G(H,I,J,K,L,true,T)end;k.dld_e=k[x]k[y]=function(H,I)return k.dld_e(H,I,1,1,1,1)end;k.dld=k[y]k[z]=function(H,I)return k.dld(H,I)/a(H)end;k.dlr=k[z]k[E]=function(H,I)local U=a(H)d(U==a(I),"Hamming Distance cannot be calculated on two strings of different lengths:\""..H.."\" \""..I.."\"")local V=0;for P=1,U do V=V+(b(H,P)~=b(I,P)and 1 or 0)end;return V end;k.hd=k[E]k[F]=function(H,I)return k.hd(H,I)/a(H)end;k.hr=k[F]local function W(X,Y,...)local Z=g(arg[1])=="table"and arg[1]or arg;local _=Y(Z[1],X)local a0=Z[1]for a1,a2 in e(Z)do local a3=Y(a2,X)if a3<_ then _=a3;a0=a2 end end;return a0,_ end;k[A]=function(X,...)return h{W(X,k.dld,...)}end;k.ffd=k[A]k[B]=function(X,...)return h{W(X,k.dlr,...)}end;local function a4(X,Y,...)local Z=g(arg[1])=="table"and arg[1]or arg;local a5={}local a6={}for a1,a2 in e(Z)do local V=Y(X,a2)if a5[V]==nil then a5[V]={}i(a6,V)end;i(a5[V],a2)end;j(a6)local a7={}for a1,a2 in f(a6)do for P,Q in e(a5[a2])do i(a7,Q)end end;return a7 end;k.ffr=k[B]k[C]=function(X,...)return a4(X,k.dld,...)end;k.fsd=k[C]k[D]=function(X,...)return a4(X,k.dlr,...)end;k.fsr=k[D]return k
|
