[Savannah-hackers] Re: Debugging in bash 2.05b

[R. Bernstein]

On Tue, 20 Aug 2002 13:47:52 -0400, Chet Ramey replied:
 > > I recently noticed in bash 2.05b that the main obstacles to writing a
 > > bash debugger have been fixed (SIGDEBUG stops before a line is
 > > executed, not afer and LINENO reports absolute line numbers rather
 > > than relative to the beginning of a function).
 > > 
 > > I picked up the debugging work from about two years ago and have
 > > started working on it. But there is more support inside bash that is
 > > desireable to make a debugger more useful.
 > 
 > What kind of changes are you talking about?  My preferred way of doing
 > things is to have patches sent to me.

Chet: 

I haven't received comment to my reply to this mail where I suggested
we start a Savannah project and from that we could run a diff against
distributed version of bash to create the patches you prefer. So I
gather this is a reasonable approach.

Savannah folks: Could we then create a CVS project for this then?

In going over old mail in trying to find a copy of my reply of Tue 20
Aug 2002, I came across another piece of mail I sent on a Tuesday: (9
May 2000 08:04:21 -0400 (EDT)) sent to bashbug. I happened to notice
that many of the the changes you asked about above were also sent to
bashbug then. This is the mail that starts...


Description:
        Patches to improve information that could be (and is) used for 
        debugging. 

    Added variables 
     BASH_LINENO - the absolute line number in the file. 
     [In 2.05 the variable LINENO changed from a relative number to 
      the absolute line number -- Thanks!]
     BASH_SOURCE - file name of the script that is currently running.
   ....