On Jun 12, 2005, at 1:06 PM, John Ridge wrote:
I've tried another method that I thought might be faster - instead of
reading a chunk at a time and popping it into a field on a new
card, why not
gulp the whole file into a variable, then get each item as a chunk?
In fact it's slower. Ah well...
--
John,
The slowness comes from switching from sequential access of the file
to "pseudo random access" by using chunk statements on the variable.
If you read in the whole file into a variable, then split the
variable by return, you will have an array of lines which can be
randomly accessed quickly. You can further put one of those lines
into another variable and split it by some item delimiter, and have
an array of items to process that line.
However, the fastest way to sequentially access the file read into a
variable, is with a repeat for each construct. It virtually lays
rubber!
repeat for each line thisLine in wholeFileVariable
repeat for each item thisItem in thisLine
doSomethingWith thisItem
end repeat
end repeat
Dennis
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