Regular Expression Needed

Question

I need a regular expression that matches a 15 character string as follows:

• Characters 1-6 should match '100702'
• Characters 7-8 should match '25' or '26'
• Characters 9-15 should match any digit (0-9) but must contain a digit.

This is for .NET

Thank you.

Answer 1

Here is a good article on using a tool to write Regex's http://www.codeproject.com/KB/dotnet/regextutorial.aspx and here is a good resource for looking up the matching characters and formats http://www.zytrax.com/tech/web/regex.htm. If you need help after this, please let me know, and I will help you along.

Answer 2

Here is one that would work for .NET, following your description:

^1007022(5|6)\d{1,7}$

See this reference.

Answer 3

This should do the job.

^100702(25|26)[0-9]{7}$

Answer 4

This is basically what your description says:

100702(?:25|26)\d{7}

Can also be written:

1007022[56]\d{7}

You might want to put ^ at the start and $ at the end if you need to match it entirely (although certain functions will do this automatically).