PERL & its IR

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

Replies are listed 'Best First'.
Re: PERL & its IR by ikegami (Patriarch) on Jan 27, 2005 at 18:08 UTC
Perl is not compiled down to bytecode like Java. The code is left in tree form. You can use `perl -MO=Terse script.pl` to see the tree for a piece of code. See B::Concise for options.	[reply] [d/l]
Re^2: PERL & its IR by dave_the_m (Monsignor) on Jan 27, 2005 at 18:15 UTC
You can use Deparse to see the tree for a piece of code I think you meant to say you can use Concise: `$ perl -MO=Concise -e '$a+$b' 6 <@> leave[1 ref] vKP/REFC ->(end) 1 <0> enter ->2 2 <;> nextstate(main 1 -e:1) v ->3 5 <2> add[t1] vK/2 ->6 - <1> ex-rv2sv sK/1 ->4 3 <$> gvsv(a) s ->4 - <1> ex-rv2sv sK/1 ->5 4 <$> gvsv(b) s ->5 -e syntax OK` [download] Dave.	[reply] [d/l]
Re^2: PERL & its IR by aninymous (Initiate) on Jan 27, 2005 at 18:13 UTC
hi, thanx for ur reply, So is "Deparse" a kind of s/w tool to see the parse tree & if so, from where can i get it?	[reply]
Re^3: PERL & its IR by ikegami (Patriarch) on Jan 27, 2005 at 18:14 UTC
I posted too fast. I just updated my post to fix the module name, and to add more info.	[reply]
Re^4: PERL & its IR by aninymous (Initiate) on Jan 27, 2005 at 18:25 UTC
Re^5: PERL & its IR by BUU (Prior) on Jan 27, 2005 at 19:22 UTC
Re: PERL & its IR by eyepopslikeamosquito (Archbishop) on Jan 27, 2005 at 21:59 UTC
If it's urgent and you don't know Perl, it sounds like what you are trying to achieve is very ambitious. There is a steep learning curve to understanding perl internals ... depending on your background and experience, of course. To get started with perl internals, start with perlguts (and its See Also links). If you like books, Extending and Embedding Perl is the best one that I'm aware of. If you give us more details on what it is you are trying to achieve, you will probably get more useful advice.	[reply]
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