Ray Jette wrote:
> Bowie Bailey wrote:
> > Ray Jette wrote:
> >
> > > Good morning,
> > > I am trying to write a negative scoring rule that files on the
> > > following: PO PO#
> > > PO #
> > >
> > > Following is the rule I am using:
> > >
> > > header PO_AND_ORDERS Subject =~ /\bPO*?#?/i
> > > score PO_AND_ORDERS -0.50
> > > describe PO_AND_ORDERS A negative scoring rule that searches
> > > the subject for PO #'s.
> > >
> > > Thanks for any help you can provide.
> > >
> >
> > Try this one:
> >
> > Subject =~ /\bPO\b ?#?/i
> >
> > The "\b" after the "PO" will prevent it from matching things like
> > "positive", "pollen", or anything else that happens to start with
> > "po". Keep in mind that the "i" at the end makes it
> > case-insensitive, so this will match "PO", "po", "pO", etc.
> >
> >
> Sometimes the subject will be: PO#34598459 so do I realy want to us
> \b? I need to match all of the ollowing:
> PO
> PO#
> PO [0-9] - im not sure the max amount of numbers
> PO# [0-9] - im not sure the number of numbers
> PO[0-9] - not sure how many numbers
> PO#[0-9] - not sure how many numbers
\b matches a zero-length word boundary. This means that one side is a
"word character" and the other side is not. Word characters are defined
as alphanumeric plus "_". So the only option in your list that would
cause a problem is "PO12345".
Try this one:
Subject =~ /\bPO(?:\b ?#?|\d)/i
Actually, since both the space and the hash are optional, is there any
point in matching them?
This might be better:
Subject =~ /\bPO(?:\b|\d)/i
Or you could look for the number (which removes the need for a word
boundary check):
Subject =~ /\bPO ?#? ?\d/i
--
Bowie
