At 11:32 pm +0000 27/4/02, jbv wrote: >I'm wondering : what is the most expensive ? > >Is it lineoffset, or is it : > put j & tab & line thisLine of bigList & return after mergedList > >I vaguely recall some discussion about adding new lines at the end of >a variable inside a loop, and the loop getting slower & slower... >I'm even pretty sure it was already a problem in HC and/or in OMO... >
It think you'll find adding stuff at the end of a variable extremely fast using "put x after y". However, the "line thisLine of bigList" part will get progressively slower as the value of thisLine increases. This is why the general advice is to use "repeat for each" where possible and avoid using incremented chunk expressions which have to count through the data each time. However, going back to the original example, if you don't expect to find many matches, that part may not be so costly. On the other hand, lineOffset will get called for each line, making it fairly expensive. So, if possible, in large loops: -- use "repeat for each" (or "split" as Scott suggested) -- use "put x after y" -- avoid using "line n of y" -- avoid using lineOffset Cheers Dave Cragg _______________________________________________ metacard mailing list [EMAIL PROTECTED] http://lists.runrev.com/mailman/listinfo/metacard
