https://stackoverflow.com/questions/16798804
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I'd do this in two steps, first identify each of your functions and subs. Here I'm using a reference \1 to ensure we're matching the correct end function or end sub. This regex also grabs the function name and places that into group 2. This can then be used later if part 2 is correct
(?:Public|Private)\s+(Function|Sub)\s+([a-z0-9]*).*?End\s+\1
Then test each of these to see if they contain your variable, note in this test I'm using multiline matching to ensure the comment character does not appear before Global_Variable on the same line. This also checks that the GLOBAL_VARIABLE_1 is not preceded by any of the following
- alphanumeric with or without a
_seperater. This would need to be updated with all the characters you might find in a variable name. Including a hyphen-here might be confused with a minus sign used in an equation. - comment character
'
^[^']*?(?![a-z0-9][_]?|['])\bGLOBAL_VARIABLE_1
VB Part 1
Imports System.Text.RegularExpressions
Module Module1
Sub Main()
Dim sourcestring as String = "replace with your source string"
Dim re As Regex = New Regex("(?:Public|Private)\s+(Function|Sub)\s+([a-z0-9]*).*?End\s+\1",RegexOptions.IgnoreCase OR RegexOptions.Singleline)
Dim mc as MatchCollection = re.Matches(sourcestring)
Dim mIdx as Integer = 0
For each m as Match in mc
For groupIdx As Integer = 0 To m.Groups.Count - 1
Console.WriteLine("[{0}][{1}] = {2}", mIdx, re.GetGroupNames(groupIdx), m.Groups(groupIdx).Value)
Next
mIdx=mIdx+1
Next
End Sub
End Module
$matches Array:
(
[0] => Array
(
[0] => Public Function doThis(byVal xml)
'' Created : dd/mm/yyyy
'' Return : string
'' Param : xml- an xml blob
return = replace(xml, "><", ">" & vbLf & "<")
GLOBAL_VARIABLE_1 = 2 + 2
doThis = return
End Function
[1] => Public Function doThat(byVal xPath)
'' Created : dd/mm/yyyy
'' Return : array
' 'Param : xPath
return = split(mid(xPath, 2), "/")
GLOBAL_VARIABLE_2 = 2 + 2
doThat = return
End Function
[2] => Public Sub butDontDoThis()
'' Created : dd/mm/yyyy
'' Return : string
' 'Param : obj
For i = 0 To 5
return = return & "bye" & " "
Next
End Sub
[3] => Public Sub alsoDoThis(byRef obj)
'' Created : dd/mm/yyyy
'' Return : string
' 'Param : obj, an xml document object
For i = 0 To 4
return = return & "hi" & " "
Next
GLOBAL_VARIABLE_1 = 1 + 1
End Sub
)
[1] => Array
(
[0] => Function
[1] => Function
[2] => Sub
[3] => Sub
)
[2] => Array
(
[0] => doThis
[1] => doThat
[2] => butDontDoThis
[3] => alsoDoThis
)
)
VB Part 2
Found in this text
Public Function doThis(byVal xml)
'' Created : dd/mm/yyyy
'' Return : string
'' Param : xml- an xml blob
return = replace(xml, "><", ">" & vbLf & "<")
GLOBAL_VARIABLE_1 = 2 + 2
doThis = return
End Function
example
Imports System.Text.RegularExpressions
Module Module1
Sub Main()
Dim sourcestring as String = "replace with your source string"
Dim re As Regex = New Regex("^[^']*?GLOBAL_VARIABLE_1",RegexOptions.IgnoreCase OR RegexOptions.Multiline)
Dim mc as MatchCollection = re.Matches(sourcestring)
Dim mIdx as Integer = 0
For each m as Match in mc
For groupIdx As Integer = 0 To m.Groups.Count - 1
Console.WriteLine("[{0}][{1}] = {2}", mIdx, re.GetGroupNames(groupIdx), m.Groups(groupIdx).Value)
Next
mIdx=mIdx+1
Next
End Sub
End Module
$matches Array:
(
[0] => Array
(
[0] => Param : xml- an xml blob
return = replace(xml, "><", ">" & vbLf & "<")
GLOBAL_VARIABLE_1
)
)
not found in this text
Public Function doThis(byVal xml)
'' Created : dd/mm/yyyy
'' Return : string
'' Param : xml- an xml blob
return = replace(xml, "><", ">" & vbLf & "<")
' GLOBAL_VARIABLE_1 = 2 + 2
doThis = return
End Function
example
Imports System.Text.RegularExpressions
Module Module1
Sub Main()
Dim sourcestring as String = "replace with your source string"
Dim re As Regex = New Regex("^[^']*?GLOBAL_VARIABLE_1",RegexOptions.IgnoreCase OR RegexOptions.Multiline)
Dim mc as MatchCollection = re.Matches(sourcestring)
Dim mIdx as Integer = 0
For each m as Match in mc
For groupIdx As Integer = 0 To m.Groups.Count - 1
Console.WriteLine("[{0}][{1}] = {2}", mIdx, re.GetGroupNames(groupIdx), m.Groups(groupIdx).Value)
Next
mIdx=mIdx+1
Next
End Sub
End Module
Matches Found:
NO MATCHES.
also not found in this text
Public Sub butDontDoThis()
'' Created : dd/mm/yyyy
'' Return : string
' 'Param : obj
For i = 0 To 5
return = return & "bye" & " "
Next
End Sub
example
Imports System.Text.RegularExpressions
Module Module1
Sub Main()
Dim sourcestring as String = "Public Sub butDontDoThis()
'' Created : dd/mm/yyyy
'' Return : string
' 'Param : obj
For i = 0 To 5
return = return & ""bye"" & "" ""
Next
End Sub"
Dim re As Regex = New Regex("^[^']*?GLOBAL_VARIABLE_1",RegexOptions.IgnoreCase OR RegexOptions.Multiline)
Dim mc as MatchCollection = re.Matches(sourcestring)
Dim mIdx as Integer = 0
For each m as Match in mc
For groupIdx As Integer = 0 To m.Groups.Count - 1
Console.WriteLine("[{0}][{1}] = {2}", mIdx, re.GetGroupNames(groupIdx), m.Groups(groupIdx).Value)
Next
mIdx=mIdx+1
Next
End Sub
End Module
Matches Found:
NO MATCHES.
Disclaimer
There are a lot of edge cases which can trip this up, for example if you have a comment with ' end function or have a if you assign a string value to a variable like thisstring = "end sub"
Yes I realize OP was for VBscript, I've included these examples to demonstrate the overall logic and that the regular expressions work.
