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Enter a match pattern as the first argument and a search string as the second argument. To use the script, call the subroutine two arguments. Sub TestRegExp(sPattern, sSearch) ' Do the regular expression match Dim oRE, oMatches Set oRE = New RegExp oRE.Global = True oRE.IgnoreCase = True oRE.Pattern = sPattern Set oMatches = oRE.Execute(sSearch) ' Now process all the matches (if any) Dim oMatch Rhino.Print "Pattern String: " & Chr( 34 ) & sPattern & Chr( 34 ) Rhino.Print "Search String: " & Chr( 34 ) & sSearch & Chr( 34 ) & VbCrLf Rhino.Print "Matches: " & CStr (oMatches.Count) Rhino.Print " " & sSearch For Each oMatch In oMatches Rhino.Print " " & String (oMatch.FirstIndex, " " ) & String (oMatch.Length, "^" ) Next End Sub
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Global property is set to True, the method matches all the occurrences in the string and returns a Match object for each match. Execute method only matches the first occurrence of the pattern. Therefore, always add one to this value before using it with other VBScript string functions.īy default, the. FirstIndex property uses 0 as the index of the first character in the string. Unlike other VBScript string indexes, the. Length property contains the length of the matched string.
![rhinoceros 5 break object apart rhinoceros 5 break object apart](https://i.imgur.com/Ru0CxSD.png)
FirstIndex property contains the index of the first character of the match in the search string. Value property contains the actual text in the search string that was matched. Execute method is invoked, the returned Matches object contains a Match object for each match located in the search string.Įach Match item has three properties. Each item in the Matches object is a Match object that describes a specific pattern match. The Matches object is a normal collection object containing a. Execute method of the RegExp object also checks for a pattern match, but it returns a Matches collection object that contains detailed information on each pattern match. In the preceding example, bMatch is set to True as there is clearly a match. Test method tests the supplied string against this match pattern, returning True if the match pattern is found within the supplied string. Pattern property defines the match pattern, and the.
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Once created in this way, the methods and properties of the object are accessed normally. This is an anomaly of VBScript, because it is the only object, apart from user-defined objects, that is created in this manner. Regular expression objects are created using the New keyword. For example:ĭim oRE, bMatch Set oRE = New RegExp oRE.Pattern = "fred" bMatch = oRE.Test( "His name was fred brown" ) To test a search string against a match pattern, create a RegExp object and set the match pattern. Thus, the RegExp object is frequently used to validate data for correct form and syntax. More sophisticated regular expressions can match against items such as file names, path names, and Internet URLs. For example, the pattern "fred" matches this exact sequence of characters and only this sequence. In its simplest form, the match pattern string is just a sequence of characters that must be matched. The match pattern provides a template that can be used to test another string, the search string, for a matching sub-string. The RegExp object provides a far more sophisticated string searching facility by using regular expressions.Ī regular expression is a string that describes a match pattern. The InStr function can be used to search a string to see if it contains another string. The VBScript RegExp object matches strings against special text patterns, called regular expressions.