> or print variables named via regex.

The following commands dump variables by regex 

  DB<162> h X
X [vars]    Same as "V currentpackage [vars]".
  DB<163> h V
V [pkg [vars]]    List some (default all) variables in package (defaul
+t current).
        Use ~pattern and !pattern for positive and negative regexps.
  DB<164> h y
y [n [Vars]]   List lexicals in higher scope <n>.  Vars same as V.

[download]

With "{" you can tell the debugger to automatically execute these (and other debugger) commands with each prompt, like when single stepping or when running into a breakpoint.

  DB<1> h {
{ db_command    Define debugger command to run before each prompt.
{ ?            List debugger commands to run before each prompt.
{{ db_command    Add to the list of debugger commands to run before ea
+ch prompt.
{ *             Delete the list of debugger commands to run before eac
+h prompt.

[download]

The following example

c = continue runs into the breakpoint s = single step shows the dumping

  DB<239> b 11 $a==3
  DB<240> L
d:/Users/RolfLangsdorf/AppData/Roaming/pm/tst_debuger.pl:
 11:       $a++;
   break if ($a==3)
  DB<240> { X y
  DB<241> {
pre-debugger commands:
    { -- X y
  DB<241> c
0123auto(-1)  DB<241> X y
$y = 3
  DB<242> s
auto(-1)  DB<242> X y
$y = 3
  DB<243> s
auto(-1)  DB<243> X y
$y = 4
  DB<244> c
45678910auto(-1)  DB<244> X y
  DB<245>

[download]

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re: How can I print variable contents from the debugger non-interactively? ( { = auto cmd ; X V y = dump by regex) by LanX
in thread How can I print variable contents from the debugger non-interactively? by davehorner

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