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B::Terse(3pm)                         Perl Programmers Reference Guide                         B::Terse(3pm)



NAME
       B::Terse - Walk Perl syntax tree, printing terse info about ops

SYNOPSIS
               perl -MO=Terse[,OPTIONS] foo.pl

DESCRIPTION
       This module prints the contents of the parse tree, but without as much information as B::Debug.  For
       comparison, "print "Hello, world.""  produced 96 lines of output from B::Debug, but only 6 from
       B::Terse.

       This module is useful for people who are writing their own back end, or who are learning about the
       Perl internals.  It's not useful to the average programmer.

       This version of B::Terse is really just a wrapper that calls B::Concise with the -terse option. It is
       provided for compatibility with old scripts (and habits) but using B::Concise directly is now
       recommended instead.

       For compatibility with the old B::Terse, this module also adds a method named "terse" to B::OP and
       B::SV objects. The B::SV method is largely compatible with the old one, though authors of new
       software might be advised to choose a more user-friendly output format. The B::OP "terse" method,
       however, doesn't work well. Since B::Terse was first written, much more information in OPs has
       migrated to the scratchpad datastructure, but the "terse" interface doesn't have any way of getting
       to the correct pad. As a kludge, the new version will always use the pad for the main program, but
       for OPs in subroutines this will give the wrong answer or crash.

AUTHOR
       The original version of B::Terse was written by Malcolm Beattie, <mbeattie@sable.ox.ac.uk>. This
       wrapper was written by Stephen McCamant, <smcc@MIT.EDU>.



perl v5.16.2                                     2012-10-11                                    B::Terse(3pm)