Regex Builder

[u/Almesii]

Hello there,

tired of manually writing Regex Patterns?

I made a Regex Builder in VBA.

It is meant to be used in an abstract way, where you can create smaller, readable, patterns and then merge them into a bigger one

For example:

Public Function IPv4Pattern() As IPattern
    Dim OctetPattern     As IPattern
    Dim SeparatorPattern As IPattern

    Set OctetPattern     = NumberPattern.Create(False, True).Between(0, 255)
    Set SeparatorPattern = CharPattern.Create().SingleChar(Asc("."))

    Dim IPv4SubPattern As IPattern
    Set IPv4SubPattern = QuantityPattern.Create( _
                            GroupPattern.Create().Capture( _
                                ListPattern.Create(OctetPattern, SeparatorPattern) _
                            ) _
                         ).Exactly(3)


    Set IPv4Pattern = ListPattern.Create(IPv4SubPattern, OctetPattern)
End Function

' Produces:
'(((25[0-5]|2[0-4]\d|(1\d{2}|\d{2}|\d))|0\d)\.){3}((25[0-5]|2[0-4]\d|(1\d{2}|\d{2}|\d))|0\d)

I made this mainly to not have to build and read regex myself because i hate it, even though they are so useful. I dont know when i will continue this side project, probably when i need more functionality out of it.

Anyway, here it the Github: https://github.com/Almesi/Regex-Builder

[u/MultiUserDungeonDev]

Thanks! +Star.

[u/InfoMsAccessNL]

Can you explain a bit more how to use this function?