Hi List
I am currently trying to check for the absence of certain substrings within larger strings using
regular expressions. I know that I could use on of the string functions, but in the interests of
flexibility I must use a regexp match of some shape or variety. Up until now, I have used PHP's
POSIX functions, but if someone has a solution for PCRE, I will use that as well.
An example of my problem:
I need to check that the substring " R" (that's a space followed by an uppercase R) is not contained within my haystack.
E.g. Whatever pattern I match, if I match it against the following haystacks:
"Blah Blah R 99.99" or "Blah Blah R99.99" it should return negative (i.e. the substring is contained within the haystack)
while
"Blah Blah 99.99CR" should return positive (i.e. the substring is not within the haystack).
I have RTFM, RTFA, STFW and perhaps I am not phraseing my search terms correctly, as I am having no luck.
Can anyone suggest a solution?
==================== Rory McKinley Nebula Solutions +27 21 555 3227 - office +27 21 551 0676 - fax +27 82 857 2391 - mobile www.nebula.co.za ====================
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