[RESOLVED] [2005] Reg Exp help.

[Asgorath]

Hi.
I need a regular expression to search a string that contains the possible combinations.
C1..C9
D1..D24

Example 1 "C1D2C9"
Example 2 "C1D1D2D6D11" maximum number of 5 combinations.

Thanks in advance.

Jorge.

[sagarpassion]

hi,
try this
'===========
([C-D][0-9]){0,5}
'----------
sagar

[Asgorath]

I am new to regexp but t though that that .Match class would return all the positions where a match is found but it only returns the 1st position! I have to browse the string myself?
Jorge

[Isorfir]

You have to loop through the matches:

Dim matchList As New ArrayList
      Dim strText As String = "C1D1D2D6D11"
 
      Dim Regex As New Regex("([C-D][0-9]){1,5}", RegexOptions.IgnoreCase)
      Dim Mymatches As MatchCollection = Regex.Matches(strText)
      For Each FoundMatch As Match In Mymatches
            matchList.Add(FoundMatch.Value)
      Next

[Asgorath]

Hi, there's a litttle problem i tried this

Dim matchList As New ArrayList
                        Dim strText As String = "D20D21D22D23D24" 
 
                        Dim Regex As New System.Text.RegularExpressions.Regex("([C-D][0-9]){1,5}")
                        Dim Mymatches As System.Text.RegularExpressions.MatchCollection = Regex.Matches(strText)
                        For Each FoundMatch As System.Text.RegularExpressions.Match In Mymatches
                            matchList.Add(FoundMatch.Value)
                            ''matchList.Add(FoundMatch.Index)
                        Next
                        For i = 0 To matchList.Count - 1
                            Console.WriteLine(matchList(i).ToString)
                        Next

It outputs
D2
D2
D2
D2
D2
instead of
D20
D21
D22
D23
D24

Any suggestions.
Jorge

[VBDT]

Do you want the unique combinations? if yes check for it in my signature.

[Isorfir]

Use this search string instead:

Dim Regex As New Regex("(C[1-9]|(D[1-9])(?!\d)|D1\d|D2[1-4])")

This will only find C1-9 or D1-24 in the string "C0C1C2D1D3D15D0D20D21D22D23D24D25D30"

This is assuming you don't want the other numbers.

[Asgorath]

Ok, this search expression works pefectly, Thanks.
Jorge