I am trying to get the meat off the bones of some .bas, .frm, and .cls VB files. Using a filet_o_bas script, I have slurped the file in to a scalar. What I want to do now is strip off the declarations at the beginning and have just the Subs and Functions left so that I can digest them. Each may have a descriptive header before the Sub/Function declaration set off by dashed lines.

I have the following RegEx so far. The problem is that I do not want it to start capturing with a Sub or Function line that has "Lib" in it, since these are not functions that are written out. They are just aliases to other already existing library functions.


/
 (                               #Start capture
  (                              #Start Sub descript header
   '\*{20,}                      #start '------ delimiter
   (\n'[^\n]*?)+\n               #middle of header
   '\*{20,}\n                    #end '------ delimiter
  )?                             #End Sub header (optional)
  (Private\s|Public\s|Friend\s)? #Scope (optional)
  (Static\s)?                    #Static (optional)
  (Sub\s|Function\s)             #Sub or Function (mandatory)
  [^\n]+                         #more stuff on same line
  (?!\sLib\s)                    #but not if Lib on line
  .*                             #and the rest of the file
 )                               #End capture
/sx

[download]

For example, if I try it on a file having the following portion, I want it to start capturing on line 27. Instead, it starts capturing on line 24.

File header stuf...
22 Private Const strLen = 80
23
24 Private Declare Function DeleteFile Lib "kernel32" Alias "DeleteFil
+eA" _
25   (ByVal lpFileName as String) as Long
26
27 '--------------------------------------------------------
28 ' Purpose:  Donuts
29 ' Author:   not me
30 ' Date:     yesterday
31 '--------------------------------------------------------
32 Private Sub DrainBattery(Byval sPercentage as Single)
Code stuff...

[download]

In reply to lookahead, lookbehind, ... I'm lost by ExReg

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.