All Objects
Match Object
RegExp Object
OBJECT: Matches Collection
Implemented in version 5.0
The
Matches Collection
is a collection of objects that contains the results of a search and match operation that uses a regular expression.
Simply put, a regular expression is a string pattern that you can compare against all or a portion of another string. However, in all fairness, be warned that regular expressions can get very complicated.
The
RegExp
object can be used to search for and match string patterns in another string. A
Match
object is created each time the
RegExp
object finds a match. Since, zero or more matches could be made, the
RegExp
object actually return a collection of
Match
objects which is refered to as a
Matches
collection.
The following code is a simplier, working version of a program published by Microsoft. Note how the
For Each ... Next
statement is used to loop through the
Matches
collection.
Code:
<%
'this sub finds the matches
Sub RegExpTest(strMatchPattern, strPhrase)
'create variables
Dim objRegEx, Match, Matches, StrReturnStr
'create instance of RegExp object
Set objRegEx = New RegExp
'find all matches
objRegEx.Global = True
'set case insensitive
objRegEx.IgnoreCase = True
'set the pattern
objRegEx.Pattern = strMatchPattern
'create the collection of matches
Set Matches = objRegEx.Execute(strPhrase)
'print out all matches
For Each Match in Matches
strReturnStr = "Match found at position "
strReturnStr = strReturnStr & Match.FirstIndex & ". Match Value is '"
strReturnStr = strReturnStr & Match.value & "'." & "<BR>" & VBCrLf
'print
Response.Write(strReturnStr)
 : Next
End Sub
'call the subroutine
RegExpTest "is.", "Is1 is2 Is3 is4"
%>
Output:
Match found at position 0. Match Value is 'Is1'.
Match found at position 4. Match Value is 'is2'.
Match found at position 8. Match Value is 'Is3'.
Match found at position 12. Match Value is 'is4'.
PROPERTIES
Count Property
Returns an integer that tells us how many
Match
objects there are in the
Matches Collection
.
Syntax:
object.
Count
Item Property
The
Item
property allows us to retreive the value of an item in the collection designated by the specified
key
argument and also to set that value by using
itemvalue
.
Syntax:
object.
Item
(key)
[ = itemvalue]
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