Use regular expression engine in .NET to convert a multi-sentence string to normal case.
Many developers use data from legacy systems that generate strings that are all upper case. Sometimes you may need an efficient way to display those lengthy strings in correct case where the first letter of every sentence is capitalized and the rest is lower case.
Using the code
The code is simple and does work but its not perfect. Proper nouns such as names of places and people will not be correct cased, and I dont know of a way to recognize them all in code. But this methodology seems to work in cases where proper nouns are not an issue.
The example is a console application in VB.NET. It's fairly well documented and I think most developers will not have a problem using it. I'd welcome any help to improve the regular expression pattern and if anybody knows of a way to recognize proper nouns in code - I'd love to see it.
Dim ORGmSG As String = "I HOPE THIS WORKS FOR ALL SITUATIONS. " & _
"BUT ITS LIKELY THAT YOU MAY FIND A BUG. IF YOU DO THEN LET ME KNOW. " & _
vbCrLf & vbCrLf & "NOW IS THE TIME, FOR ALL GOOD MEN, TO COME TO THE AID " & _
"OF THEIR COUNTRY."
Dim reg As New Regex("^[a-z]|\b\. [a-z0-9]?| i ", RegexOptions.Multiline)
Console.WriteLine(reg.Replace(ORGmSG.ToLower, AddressOf eval))
Private Function eval(ByVal m As Match) As String
3-12-2007 Initial code review.