Perl prxmatch difference between space and word boundary \b

brulard — Tue, 25 Jul 2017 12:44:57 GMT

hi,

Can someone explain if/what is the difference in perl,using function prxmatch, between space and word boundary \b?

Example adding a space (after POBOX):

if prxmatch ("m/POBOX /oi",BILL_ADDR_LINE1)> 0

Example adding word boundary \b :

if prxmatch ("m/POBOX\b/oi",BILL_ADDR_LINE1)> 0

Thank you

Re: Perl prxmatch difference between space and word boundary \b

Ksharp — Tue, 25 Jul 2017 12:56:03 GMT

The first one only match "POBOX ".

But the second one will match "POBOX " or "POBOX," or "POBOX." .................