The Boyer-Moore string-searching algorithm provides a highly optimized method for searching for a sub-string within a string. The Boyer-Moore algorithm takes advantage of its knowledge of the string being searched for. By doing this, it is possible to search a string without examining all the characters in the string.
|(Declarations)||Declarations||Declarations and private variables for the CBoyerMoore class.|
|CaseSensitive||Property||Determine whether or not the search is case sensitive. This property must be set before the FindText and Text properties.|
|FindText||Property||Get the text to search for.|
|Text||Property||Get the value of the text being searched.|
|FindNext||Method||Finds the next matching string. This function increments the index into the search buffer each time it is called. To begin searching from the beginning of the search buffer, call the Reset method.|
|ResetSearch||Method||Reset the search.|
' Example of CBoyerMoore ' ' To use this example, create a new module and paste this code into it. ' Then run the procedure by putting the cursor in the procedure and pressing: ' F5 to run it, or ' F8 to step through it line-by-line (see the Debug menu for more options) Private Sub Example_CBoyerMoore() ' Comments: Example of using the CBoyerMoore class in VBA or VB6. ' The Boyer-Moore string-searching algorithm provides a highly optimized method for searching for a sub-string within a string. ' The Boyer-Moore algorithm takes advantage of its knowledge of the string being searched for. ' By doing this, it is possible to search a string without examining all the characters in the string. Dim lngFindStart As Long Dim lngFindLength As Long Dim clsBoyerMoore As CBoyerMoore Set clsBoyerMoore = New CBoyerMoore clsBoyerMoore.CaseSensitive = True clsBoyerMoore.FindText = "Hello" clsBoyerMoore.Text = "Hello World" clsBoyerMoore.ResetSearch Do While clsBoyerMoore.FindNext(lngFindStart, lngFindLength) Debug.Print "'" & Mid$("Hello World", lngFindStart, lngFindLength) & "' was found in string at position " & lngFindStart Loop End Sub
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