Question

I am a newbie at RegEx, so I need some help. Can anyone help me parse a string and find one or more instances of numbers that range from 40000 to 99999? Here are some example strings:

• Order Details, Acme, #46405,53000,86232, for 4/17 - 3 instances
• PSA Order Detail: Hiring Practices (46445); starting 4-16-12 - 1 instance
• PC Pitstop 32134 Direct for 4/18/12 - 0 instances

Answer 1

You could try something like this:

(?<!\d)[4-9]\d{4}(?!\d)

See it on regexr

EDIT: here is a c# code snippet to test it:

// could be whatever
var str = "50000 alpha 43 84100";
var regex = new Regex(@"(?<!\d)[4-9]\d{4}(?!\d)");
foreach (Match match in regex.Matches(str))
    Console.WriteLine(match.Value);

this outputs:

50000
84100