Regular AND, OR Expressions ?

[Anon]

Hallo,

I have a string:

" count1 count2 UserNr Name ".

Now I want test with one regular expression following:

• if count1,count2 and count3 in string ?
  (match only if all words in string)

and

• if UserNr in string match only if Name, City and Street not in String.

A better discription of this problem is following pseudo code:

(count1 & count2 & count3) & (UserNr | (!Name & !City & !Street))

thanks for a solution.

[Anon]

Thanks.

Also is there no AND operator in regex-standard ?

[Anon]

the second row match if all count(x)s are found, but only in this order. For a variable order I must all possibilities define.

other question:

How can I match all round brackets pairs in a string ?

str = "(count1|count2)&(count3|(count4&count5))"

preg_match_all should content:

"(count1|count2)"
"(count3|(count4&count5))"
"(count4&count5)"

but not other.