Okay, I think I'm brain damaged -- nope, I figured it out

[Mark Wieder]

Geoff, Craig-

Thursday, September 12, 2013, 1:30:49 PM, you wrote:

OTOH, this scales linearly and is faster than "before", "after", or
"into": on a half-fast dual-core linux box I get 103 ticks for a
million iterations. Even with the overhead of the handler call, it
looks like this avoids making a copy of the original.

on mouseUp
    local temp
    local s
    local accum
    
    put "XXX" into temp
    put the ticks into s
    repeat 1000000 -- yes, that's a million
        append temp, accum
    end repeat
    put the ticks - s into field 1
    answer length(accum)
end mouseUp

command append pNew, @pString
    put pNew after pString
end append

-- 
-Mark Wieder
 mwieder at ahsoftware.net