Matching ID's by Regex

Question

Hello everyone,

I want to check ID's using Regex

    Shared ReadOnly UniverseChrs As String = "IUMGAPCgTLcia"
    Shared ReadOnly Steam2Regex As Regex = New Regex("STEAM_(?<Universe>[0-4]):(?<AuthServer>[0-1]):(?<ID>[1-9][0-9]{0,9}$|^2147483647)", RegexOptions.Compiled Or RegexOptions.IgnoreCase)
    Shared ReadOnly Steam3Regex As Regex = New Regex("(?<Type>[" & UniverseChrs & "]):(?<Universe>[0-4]):(?<ID>[1-9][0-9]{0,9}$|^2147483647)(:(?<Instance>[1-9][0-9]{0,9}$|^2147483647))?", RegexOptions.Compiled)

the ID's formats are

    '[U:1:4533645:093919]
    '[U:1:17309919]
    'U:1:254093919
    'U:1:354093:914739
    'STEAM_0:1:227046959
    'STEAM_1:0:358204935

Steam2Regex seems to work, but Steam3Regex not.

Anyone can help me with this?

Thanks in advance.

Answer 1

Maybe you should remove ‘$’ and use ‘0-9’ instead of ‘1-9’ in the <Instance> part.

Check this expression:

   (?<Type>[IUMGAPCgTLcia]):(?<Universe>[0-4]):(?<ID>[1-9][0-9]{0,9})(?::(?<Instance>[0-9]{1,10}))?

and add missing parts.

Answer 2

U:1:254093919, Seems to match, but U:1:354093:914739 not.

and bot [U:1:4533645:093919] and [U:1:17309919] also don't match.

I understand from the result that this part [1-9][0-9]{0,9}$|^2147483647 is correct since also Steam2Regex works

Answer 3

I think that

   (?<Type>[IUMGAPCgTLcia]):(?<Universe>[0-4]):(?<ID>[1-9][0-9]{0,9})(?::(?<Instance>[0-9]{1,10}))?

matches all of U:1:254093919, U:1:354093:914739, [U:1:4533645:093919] and [U:1:17309919].

Answer 4

Thank you so much...

It works.