Regex to get VB6 function definitions

[nassegris]

Hello everyone!

I'm trying to write a regular expression to capture VB6 function
definitions and I'm abit stuck. The rules are:

Function header:
* Must contain the words SUB or FUNCTION
* May contain the words PUBLIC or PRIVATE
* May NOT contain the word DECLARE
* Ends at the first newline that is not preceded by an underscore (_)
followed by a space.

Function footer
* Must contain the words END FUNCTION or END SUB only

Function exit:
* Must contain the words EXIT FUNCTION or EXIT SUB only

The idea is that I want to insert some logging code after each
function header and some logging code before each exit or end. So what
I need is a regex that would capture whole functions with groups for:
* Whole function header
* Function name
* Function parameter list

So far I've come up with
(?:^\s*(?:publi c|private){0,1} \s(?:sub|functi on)\s) (?<FunctionName >[\w
\d]+) (?<FunctionArgs >(?:\s*.*_\s$)* (?:\s*.*$) | (?:.*$)) # FUNCTION
HEADER
and
(^\s*(?:end|exi t)\s(?:sub|func tion)).*$ # FUNCTION FOOTER

but I don't really know how to combine them to get the complete
function back with the exits and ends tagged properly.

Could someone plese help me out with some tips?

Regards,

[Nicholas Paldino [.NET/C# MVP]]

To be honest, I don't know how you would use a regex for this, and I
hope someone else can help you on that front.

Given that you want the task of processing a number of vb files, have
you thought about writing an add-in for the VB6 environment? You can do so
in .NET, and access the specific components of the code files (functions,
properties, etc, etc) through the object model. It might make it a lot
easier than parsing it all apart using regular expressions.

--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m

<na*******@gmai l.comwrote in message
news:11******** **************@ m37g2000prh.goo glegroups.com.. .

Hello everyone!

I'm trying to write a regular expression to capture VB6 function
definitions and I'm abit stuck. The rules are:

Function header:
* Must contain the words SUB or FUNCTION
* May contain the words PUBLIC or PRIVATE
* May NOT contain the word DECLARE
* Ends at the first newline that is not preceded by an underscore (_)
followed by a space.

Function footer
* Must contain the words END FUNCTION or END SUB only

Function exit:
* Must contain the words EXIT FUNCTION or EXIT SUB only

The idea is that I want to insert some logging code after each
function header and some logging code before each exit or end. So what
I need is a regex that would capture whole functions with groups for:
* Whole function header
* Function name
* Function parameter list

So far I've come up with
(?:^\s*(?:publi c|private){0,1} \s(?:sub|functi on)\s) (?<FunctionName >[\w
\d]+) (?<FunctionArgs >(?:\s*.*_\s$)* (?:\s*.*$) | (?:.*$)) # FUNCTION
HEADER
and
(^\s*(?:end|exi t)\s(?:sub|func tion)).*$ # FUNCTION FOOTER

but I don't really know how to combine them to get the complete
function back with the exits and ends tagged properly.

Could someone plese help me out with some tips?

Regards,