Re: Debugging bigrat? (perl5db.pl scope)

The mystery is why "print" doesn't work for bigrat when entered in the debugger:

scope is scope

$ perl -de 1

Loading DB routines from perl5db.pl version 1.33
Editor support available.

Enter h or `h h' for help, or `perldoc perldebug' for more help.

main::(-e:1):   1
  DB<1> use bigrat;

  DB<2> print 1/3 + 1/4,"\n";
0.583333333333333

  DB<3> use bigrat; print 1/3 + 1/4,"\n";
7/12

  DB<4> q
[download]

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Re^2: Debugging bigrat? (perl5db.pl scope) by jabowery (Beadle) on Jun 02, 2013 at 16:09 UTC
"scope is scope" but what you are really saying is that the debugger's scope is not the same as that of the program it is debugging. How can one activate bigrat in the debugger's scope?	[reply]
Re^3: Debugging bigrat? (perl5db.pl lexical scope) by Anonymous Monk on Jun 03, 2013 at 05:51 UTC
bigrat is lexically scoped , example `$ perl -E " { use bigrat; say 1/3+1/4; }; say 1/3+1/4; " 7/12 0.583333333333333` [download] perl5db.pl uses eval to execute code you type, and each eval is a new lexical scope This is one reason I don't deal with debuggers update: oh look, someone ran into this limitation before, see Debugger, use strict, use warnings and Are debuggers good? One idea, how to make lexical pragma global, hints ( pl_hints $^H %^H ), taint::all, but I kind of think any debugger shouldn't need help with this kind of stuff anyway, it should be a feature , but like I said, I don't use them	[reply] [d/l]
Re^3: Debugging bigrat? (perl5db.pl scope) by Anonymous Monk on Jun 03, 2013 at 04:53 UTC
How can one activate bigrat in the debugger's scope? I don't know, I never use the debugger (or debuggers). I imagine it might involve editing perl5db.pl or something else, maybe http://search.cpan.org/perldoc/perl5db.pl#DEBUGGER_STARTUP, see perldebug, perldebtut, perldebguts, or alternative debuggers like ebug	[reply]