I use the following regex. ^[-+]?0[Xx][[:xdigit:]]+(?![.G-Zg-z])
and the following string 0x10g on using PCRE. https://regex101.com/ It matches 0x1. I want it to be no match. Is there a way to modify the regex so that only matches valid hex numbers? Thanks. -- Regards, Peng -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev