Your regex doesn't seem to work when I try it in a regex builder but I can't see why it doesn't, it looks correct to me.
Judah On Wed, Apr 20, 2011 at 12:07 PM, Jerry Milo Johnson <[email protected]> wrote: > > I was thinking that the - at the front is a special case, as it can > ONLY appear at the very front or not at all. maybe pull it out? > > ^[-]?[0-9\.]*[0-9]+ > > or should I shut up and return to making php errors by the dozen? > > > > On Wed, Apr 20, 2011 at 2:53 PM, Judah McAuley <[email protected]> wrote: >> >> I just realized that it probably needs one more revision to this: >> >> ^[0-9\.-][0-9\.]+[0-9]+ >> >> The problem with the previous one is that it would allow -. as a >> number, which it obviously is not. The new regex requires the last >> character to be a number. This should be fine in almost all >> situations, so -.9 would pass but -9. would not. Now, technically, -9. >> is a number if you are keeping track of margin of error calculations >> as it says you know the precision of the number to the single whole >> number. Almost no one would ever write it that way except a few >> pedantic physicists. And those folks usually don't have error margins >> in that realm. But it is technically possible, so there's the caveat. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-community/message.cfm/messageid:336591 Subscription: http://www.houseoffusion.com/groups/cf-community/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-community/unsubscribe.cfm
