by gridrun (2 Submissions)
Category: String Manipulation
Compatability: Visual Basic 3.0
Difficulty: Beginner
Date Added: Wed 3rd February 2021
Rating: 
(2 Votes)
This code matches a given string against a pattern which may contain the well known wildcards * and ?, whereas * represents any number of characters, including none, and ? represents any single character. You may want to paste the code into a class module :)
Inputs
Name as String, Pattern as String. Name is the String you want to match against Pattern.
Assumes
MatchCase() is the case-sensitive worker function. It makes usage of PreparePattern() to escape the characters # and [ (read Side effects).
Match() is just a wrapper for MatchCase() which does a LCase() on both Name and Pattern parameters.
Code Returns
Returns Boolean True if String matches for Pattern, else returns Boolean False.
Side Effects
This code is written specifically for usage in an IRC bot, thus does escape certain chars which are recognized by the "Like" operator, which this code builds on. Namely, # and [ are taken literally rather than being interpreted as wildcards.
VBcodersPublic Function Match(Name As String, Pattern As String) As Boolean
If MatchCase(LCase(Name), LCase(Pattern)) Then Match = True
End Function
Public Function MatchCase(Name As String, Pattern As String) As Boolean
Pattern = PreparePattern(Pattern)
If Name Like Pattern Then MatchCase = True
End Function
Private Function PreparePattern(Pattern As String) As String
Pattern = Replace(Pattern, "[", "[[]")
Pattern = Replace(Pattern, "#", "[#]")
PreparePattern = Pattern
End Function
