question on func equal_from

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Would 
r=equal_from(x,s,i)

be the same as
r=(match(x,s)=i)

but faster and 
the same as 
if i>=1 and length(s)>i+length(x)-1 then
r=equal[x,s[i..i+length(x)-1]]
else
r=0
end if

but simplier?

Why hasn't this also been implemented if we have match_from and find_from?

Cheers,

Salix

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