Re: Basic debugging checklist


Do you know where your variables are?
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Re: Basic debugging checklist

by Anonymous Monk

on Oct 03, 2014 at 02:58 UTC ( [id://1102695]=note: print w/replies, xml )

Need Help??

in reply to Basic debugging checklist

perl -Mre=debug foo.pl can help you see how perl interprets your regex, much in the way O=Deparse does for perl code

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Re^2: Basic debugging checklist
by Anonymous Monk on Oct 31, 2014 at 07:38 UTC

ppi_dumper

$ ppi_dumper 2
PPI::Document
  PPI::Statement::Include
    PPI::Token::Word    'use'
    PPI::Token::Whitespace      ' '
    PPI::Token::Word    'constant'
    PPI::Token::Whitespace      ' '
    PPI::Token::Word    'X'
    PPI::Token::Whitespace      ' '
    PPI::Token::Operator        '=>'
    PPI::Token::Whitespace      ' '
    PPI::Token::Number          '1'
    PPI::Token::Operator        '/'
    PPI::Token::Number          '3'
    PPI::Token::Structure       ';'
  PPI::Token::Whitespace        '\n'
  PPI::Token::Whitespace        '\n'
[download]

So PPI::Token::Operator tells you "=>" is an operator

If you read perl/"perltoc" then you'll know that operators are documented in perlop

App::PPI::Dumper / ppi_dumper

wxPPIxregexplain.pl

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