C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// package B::Showlex; our $VERSION = '1.03'; use strict; use B qw(svref_2object comppadlist class); use B::Terse (); use B::Concise (); # # Invoke as # perl -MO=Showlex,foo bar.pl # to see the names of lexical variables used by &foo # or as # perl -MO=Showlex bar.pl # to see the names of file scope lexicals used by bar.pl # # borrowed from B::Concise our $walkHandle = \*STDOUT; sub walk_output { # updates $walkHandle $walkHandle = B::Concise::walk_output(@_); #print "got $walkHandle"; #print $walkHandle "using it"; $walkHandle; } sub shownamearray { my ($name, $av) = @_; my @els = $av->ARRAY; my $count = @els; my $i; print $walkHandle "$name has $count entries\n"; for ($i = 0; $i < $count; $i++) { my $sv = $els[$i]; if (class($sv) ne "SPECIAL") { printf $walkHandle "$i: %s (0x%lx) %s\n", class($sv), $$sv, $sv->PVX; } else { printf $walkHandle "$i: %s\n", $sv->terse; #printf $walkHandle "$i: %s\n", B::Concise::concise_sv($sv); } } } sub showvaluearray { my ($name, $av) = @_; my @els = $av->ARRAY; my $count = @els; my $i; print $walkHandle "$name has $count entries\n"; for ($i = 0; $i < $count; $i++) { printf $walkHandle "$i: %s\n", $els[$i]->terse; #print $walkHandle "$i: %s\n", B::Concise::concise_sv($els[$i]); } } sub showlex { my ($objname, $namesav, $valsav) = @_; shownamearray("Pad of lexical names for $objname", $namesav); showvaluearray("Pad of lexical values for $objname", $valsav); } my ($newlex, $nosp1); # rendering state vars sub newlex { # drop-in for showlex my ($objname, $names, $vals) = @_; my @names = $names->ARRAY; my @vals = $vals->ARRAY; my $count = @names; print $walkHandle "$objname Pad has $count entries\n"; printf $walkHandle "0: %s\n", $names[0]->terse unless $nosp1; for (my $i = 1; $i < $count; $i++) { printf $walkHandle "$i: %s = %s\n", $names[$i]->terse, $vals[$i]->terse unless $nosp1 and $names[$i]->terse =~ /SPECIAL/; } } sub showlex_obj { my ($objname, $obj) = @_; $objname =~ s/^&main::/&/; showlex($objname, svref_2object($obj)->PADLIST->ARRAY) if !$newlex; newlex ($objname, svref_2object($obj)->PADLIST->ARRAY) if $newlex; } sub showlex_main { showlex("comppadlist", comppadlist->ARRAY) if !$newlex; newlex ("main", comppadlist->ARRAY) if $newlex; } sub compile { my @options = grep(/^-/, @_); my @args = grep(!/^-/, @_); for my $o (@options) { $newlex = 1 if $o eq "-newlex"; $nosp1 = 1 if $o eq "-nosp"; } return \&showlex_main unless @args; return sub { my $objref; foreach my $objname (@args) { next unless $objname; # skip nulls w/o carping if (ref $objname) { print $walkHandle "B::Showlex::compile($objname)\n"; $objref = $objname; } else { $objname = "main::$objname" unless $objname =~ /::/; print $walkHandle "$objname:\n"; no strict 'refs'; die "err: unknown function ($objname)\n" unless *{$objname}{CODE}; $objref = \&$objname; } showlex_obj($objname, $objref); } } } 1; __END__ =head1 NAME B::Showlex - Show lexical variables used in functions or files =head1 SYNOPSIS perl -MO=Showlex[,-OPTIONS][,SUBROUTINE] foo.pl =head1 DESCRIPTION When a comma-separated list of subroutine names is given as options, Showlex prints the lexical variables used in those subroutines. Otherwise, it prints the file-scope lexicals in the file. =head1 EXAMPLES Traditional form: $ perl -MO=Showlex -e 'my ($i,$j,$k)=(1,"foo")' Pad of lexical names for comppadlist has 4 entries 0: SPECIAL #1 &PL_s