31 Aug
2000
31 Aug
'00
8:08 p.m.
amk wrote:
outside a character class it's a character if there are exactly 3 octal digits; otherwise it's a backref. So \41 is a backref to group 41, but \041 is the literal character ASCII 33.
so what's the right way to parse this? read up to three digits, check if they're a valid octal number, and treat them as a decimal group number if not? </F>