wow - that's really helpful - thanks a lot for your time claudius
best
a
On 4 Jul 2008, at 14:56, Claudius Ceteras wrote:
the \b boundary worked a treat - i'm just researching why it
worked now
/(\d\d\d)(?=(?:\d\d\d)*\b)/g
Find all groups of three digits < (\d\d\d) >, which are followed by <
positive lookahead: (?= ) >
0, 3, 6, 9, ... Digits, followed by a word boundary < (?:\d\d\d)*\b >
Word boundaries match at the end of the number, so because it only
matches
three digits groups which are followed by a number of digits which is
divisible by 3, it doesnt find "123" in "1234567", but
"234" (because it's
followed by 3 digits followed by a word boundary) and
"456" (because it's
followed by 0 digits followed by a wod boundary)
Btw,
(?: ) is a non-capturing group,
(?= ) is a positive lookahead.
You can google for both...
regards
Claudius
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