OpenEuphoria

Re: Looking for the best "JOIN"

• Posted by euphoria at carlw.legend.uk.com Oct 22, 2001
• 382 views

Euman wrote:

> Im looking for the best JOIN method.
> 
> Heres what I have:   {"str1","str2","str3"}
> 
> Heres what I want:   "str1str2str3"

function join(sequence s) -- this is the way most people would do it
    sequence j
    if not length(s) then return s end if
    j = {}
    for i = 1 to length(s)
        j &= s[i]
    end for
    return j
end function

...or...:

function join2(sequence s) -- this shouldn't be any faster but who knows?
    sequence j
    integer mid, len
    len = length(s)
    if not len then return s
    elsif len = 1 then return s[1]
    elsif len = 2 then return s[1]&s[2]
    end if
    mid = floor(len/2)
    return join2(s[1..mid])&join2(s[mid+1..len])
end function
    
Carl