Imports System
Imports System.Text.RegularExpressions

Public Class Test
	Public Shared Sub Main()
		Dim texto As String = "if Argumento1 = Argumento2 ( --statements; );"
        Dim argumento1 As String = "", argumento2 As String = ""

        Dim match As Match = Regex.Match(texto, "if\s+([\w]+)\s+=\s+([\w]+)\s+\(", RegexOptions.IgnoreCase)
        If match.Success Then
            argumento1 = match.Groups(1).Value
            argumento2 = match.Groups(2).Value
        End If
        Console.WriteLine(String.Format("Arg1: {0}, Arg2: {1}", argumento1, argumento2))
        Console.ReadLine()
	End Sub
End Class