Re: Regex: Specifying quantity for bracketed items

Maybe you want something like this:

/
   ^(?![ ])        # Doesn't start with a space
   .*?             # Anything
   [a-z0-9]{5,12}  # Has a 5..12 lowercases or digits in a row
   .*              # Anything
   (?<![ ])$       # Doesn't end with a space
/x
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which will match
a1b2c3
BVBDa1b2c3
a1b2c3ZZZ
!@#a1b2c3$%^
! a1b2c3 FF

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Re^2: Regex: Specifying quantity for bracketed items by Eimi Metamorphoumai (Deacon) on Nov 10, 2004 at 22:07 UTC
Actually, that doesn't limit you to 5..12, that matches anything with at least 5 lowercases or digits in a row. Any more than 12 just get sucked into the `.` after it. Which makes it equivalent to `/ ^(?![ ]) # Doesn't start with a space .? # Anything [a-z0-9]{5} # Has 5 lowercases or digits in a row .* # Anything (possibly more lowercases or digits) (?<![ ])$ # Doesn't end with a space /x` [download]	[reply] [d/l] [select]
Re^3: Regex: Specifying quantity for bracketed items by ikegami (Patriarch) on Nov 10, 2004 at 22:10 UTC
Right you are! Fixed below. `/ ^(?![ ]) # Doesn't start with a space .? # Anything (?<![a-z0-9]) # For the {5,12} to be meaningful. [a-z0-9]{5,12} # Has a 5..12 lowercases or digits in a row (?![a-z0-9]) # For the {5,12} to be meaningful. . # Anything (?<![ ])$ # Doesn't end with a space /x` [download]	[reply] [d/l]