Debugger subroutine for ptkdb that places a breakpoint, with or without a condition, on the next executable line.
use strict ;
use vars qw/@dbline/ ;
sub Debugger {
return unless defined $DB::single && defined %main::Devel::ptkdb::
+ ;
my($package, $fname, $line) = caller ;
my($expr) = shift ;
local(*dbline) = local(*dbline) = $main::{'_<' . $fname} ;
$line += 1 ;
for( ; $line < @dbline && !DB::checkdbline($fname, $line) ; $line
+++ ) {}
return if( $line == @dbline ) ;
if( defined $expr ) {
Devel::ptkdb::condbrkpt($fname, $line, $expr) ;
}
else {
Devel::ptkdb::brkpt($fname, $line) ;
}
}
##
## Example of Use
##
sub foo1 {
Debugger() ;
}
sub foo2 {
print "Hi\n" ;
}
&foo1 ;
Debugger() ;
print "Hello world!\n" ;
my($i) ;
for( $i = 0 ; $i < 20 ; $i++ ) {
Debugger('$i > 15') ;
print "$i\n" ;
}
Features
Function call needn't be removed when debugging isn't enabled
Issues
If placed at the bottom of a subroutine, a breakpoint is placed at the beginning of the next, or nothing, if there are more executable lines in the file.
Breakpoints don't actually appear until AFTER execution has passed over the Debugger() call.
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.