Help on regex

Apress:

\d{2}:\d{2}:\d{2}

hour:minute:second

I hope this helps,

wizkid1 at 2007-8-30 >

Now how exact to you want this? So far, you've only given us examples of two good value. To write a regex pattern, we really need to know what you want to reject. Is any time good, or are we only accepting 1/4 hour increments? Is 24 hours a hard limit, or is is an upper limit of 29:59:59 acceptable (it would make things a whole lot easier)

If you'll accept any value from 0:00 to 29:59 than this should work:

[012]?[0-9]:[0-5][0-9]$

JamesCurran at 2007-8-30 >

but it acceptable values should be betwee 00:15 and 23:59

Thanks

GoDaddy at 2007-8-30 >

>> but it acceptable values should be betwee 00:15 and 23:59

IF that's exactly what you want (00:10 is bad, but 00:16 & 01:01 is good) then this would be a bit tricky from a Regex, so you may want to consider a different approach.

However, This should work:

"(00:1[5-9])|(00:[2-5][0-9])|(0[1-9]:[0-5][0-9])|(1[0-9]:[0-5][0-9])|(2[0-3]:[0-5][0-9])"

It get the following result:

Matching: 00:10 No Match
Matching: 00:15 1 => 00:15
Matching: 00:16 1 => 00:16
Matching: 01:01 3 => 01:01
Matching: 01:20 3 => 01:20
Matching: 17:47 4 => 17:47
Matching: 17:74 No Match
Matching: 23:59 5 => 23:59
Matching: 24:15 No Match

And Regular Expression Workbench gives the following interpretatiuon:

Capture
00:1
Any character in "5-9"
End Capture
or
Capture
00:
Any character in "2-5"
Any character in "0-9"
End Capture
or
Capture
0
Any character in "1-9"
:
Any character in "0-5"
Any character in "0-9"
End Capture
or
Capture
1
Any character in "0-9"
:
Any character in "0-5"
Any character in "0-9"
End Capture
or
Capture
2
Any character in "0-3"
:
Any character in "0-5"
Any character in "0-9"
End Capture

JamesCurran at 2007-8-30 >