Strange behaviour of XML char handler

kgullekson has asked for the wisdom of the Perl Monks concerning the following question:

Hi,
I'm running a script which uses XML::Parser to parse an XML file. I'm seeing some weird stuff when I run in debug. Why do the contents of my $data variable seem to disappear after I strip off tabs?

main::char_handler(./test.pl:137):
137:            ($p, $data) = @_;
  DB<21> p $data
PositionFairValueBase
  DB<22> x $data
0  'PositionFairValueBase'
  DB<23> s
main::char_handler(./test.pl:140):
140:            $data =~ s/\t//g;
  DB<23> x $data
0  '
'
  DB<24>
[download]

Thanks!

Comment on Strange behaviour of XML char handler Download Code

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Re: Strange behaviour of XML char handler by jethro (Monsignor) on Feb 21, 2009 at 00:23 UTC
Your problem lies with understanding the debugger. If you do a step it executes the previous shown line and shows you the next. For example `> cat t7.pl #!/usr/bin/perl -w $t=1; $t=5; $t=10; > perl -d t7.pl main::(t7.pl:7): my $t=1; DB<1> x $t 0 undef DB<2> s main::(t7.pl:8): $t=5; DB<2> x $t 0 1 DB<3> q` [download] So the line `($p, $data) = @_;` is the one that changes your var	[reply] [d/l] [select]
Re: Strange behaviour of XML char handler by kgullekson (Initiate) on Feb 21, 2009 at 13:25 UTC
Thanks for the wisdom!	[reply]