Файловый менеджер

Файловый менеджер - Редактировать - /usr/lib/x86_64-linux-gnu/perl-base/re.pm

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package re; # pragma for controlling the regexp engine use strict; use warnings; our $VERSION = "0.37"; our @ISA = qw(Exporter); our @EXPORT_OK = ('regmust', qw(is_regexp regexp_pattern regname regnames regnames_count)); our %EXPORT_OK = map { $_ => 1 } @EXPORT_OK; my %bitmask = ( taint => 0x00100000, # HINT_RE_TAINT eval => 0x00200000, # HINT_RE_EVAL ); my $flags_hint = 0x02000000; # HINT_RE_FLAGS my $PMMOD_SHIFT = 0; my %reflags = ( m => 1 << ($PMMOD_SHIFT + 0), s => 1 << ($PMMOD_SHIFT + 1), i => 1 << ($PMMOD_SHIFT + 2), x => 1 << ($PMMOD_SHIFT + 3), xx => 1 << ($PMMOD_SHIFT + 4), n => 1 << ($PMMOD_SHIFT + 5), p => 1 << ($PMMOD_SHIFT + 6), strict => 1 << ($PMMOD_SHIFT + 10), # special cases: d => 0, l => 1, u => 2, a => 3, aa => 4, ); sub setcolor { eval { # Ignore errors require Term::Cap; my $terminal = Tgetent Term::Cap ({OSPEED => 9600}); # Avoid warning. my $props = $ENV{PERL_RE_TC} \|\| 'md,me,so,se,us,ue'; my @props = split /,/, $props; my $colors = join "\t", map {$terminal->Tputs($_,1)} @props; $colors =~ s/\0//g; $ENV{PERL_RE_COLORS} = $colors; }; if ($@) { $ENV{PERL_RE_COLORS} \|\|= qq'\t\t> <\t> <\t\t'; } } my %flags = ( COMPILE => 0x0000FF, PARSE => 0x000001, OPTIMISE => 0x000002, TRIEC => 0x000004, DUMP => 0x000008, FLAGS => 0x000010, TEST => 0x000020, EXECUTE => 0x00FF00, INTUIT => 0x000100, MATCH => 0x000200, TRIEE => 0x000400, EXTRA => 0xFF0000, TRIEM => 0x010000, OFFSETS => 0x020000, OFFSETSDBG => 0x040000, STATE => 0x080000, OPTIMISEM => 0x100000, STACK => 0x280000, BUFFERS => 0x400000, GPOS => 0x800000, ); $flags{ALL} = -1 & ~($flags{OFFSETS}\|$flags{OFFSETSDBG}\|$flags{BUFFERS}); $flags{All} = $flags{all} = $flags{DUMP} \| $flags{EXECUTE}; $flags{Extra} = $flags{EXECUTE} \| $flags{COMPILE} \| $flags{GPOS}; $flags{More} = $flags{MORE} = $flags{All} \| $flags{TRIEC} \| $flags{TRIEM} \| $flags{STATE}; $flags{State} = $flags{DUMP} \| $flags{EXECUTE} \| $flags{STATE}; $flags{TRIE} = $flags{DUMP} \| $flags{EXECUTE} \| $flags{TRIEC}; if (defined &DynaLoader::boot_DynaLoader) { require XSLoader; XSLoader::load(); } # else we're miniperl # We need to work for miniperl, because the XS toolchain uses Text::Wrap, which # uses re 'taint'. sub _load_unload { my ($on)= @_; if ($on) { # We call install() every time, as if we didn't, we wouldn't # "see" any changes to the color environment var since # the last time it was called. # install() returns an integer, which if casted properly # in C resolves to a structure containing the regexp # hooks. Setting it to a random integer will guarantee # segfaults. $^H{regcomp} = install(); } else { delete $^H{regcomp}; } } sub bits { my $on = shift; my $bits = 0; my $turning_all_off = ! @_ && ! $on; if ($turning_all_off) { # Pretend were called with certain parameters, which are best dealt # with that way. push @_, keys %bitmask; # taint and eval push @_, 'strict'; } # Process each subpragma parameter ARG: foreach my $idx (0..$#_){ my $s=$_[$idx]; if ($s eq 'Debug' or $s eq 'Debugcolor') { setcolor() if $s =~/color/i; ${^RE_DEBUG_FLAGS} = 0 unless defined ${^RE_DEBUG_FLAGS}; for my $idx ($idx+1..$#_) { if ($flags{$_[$idx]}) { if ($on) { ${^RE_DEBUG_FLAGS} \|= $flags{$_[$idx]}; } else { ${^RE_DEBUG_FLAGS} &= ~ $flags{$_[$idx]}; } } else { require Carp; Carp::carp("Unknown \"re\" Debug flag '$_[$idx]', possible flags: ", join(", ",sort keys %flags ) ); } } _load_unload($on ? 1 : ${^RE_DEBUG_FLAGS}); last; } elsif ($s eq 'debug' or $s eq 'debugcolor') { setcolor() if $s =~/color/i; _load_unload($on); last; } elsif (exists $bitmask{$s}) { $bits \|= $bitmask{$s}; } elsif ($EXPORT_OK{$s}) { require Exporter; re->export_to_level(2, 're', $s); } elsif ($s eq 'strict') { if ($on) { $^H{reflags} \|= $reflags{$s}; warnings::warnif('experimental::re_strict', "\"use re 'strict'\" is experimental"); # Turn on warnings if not already done. if (! warnings::enabled('regexp')) { require warnings; warnings->import('regexp'); $^H{re_strict} = 1; } } else { $^H{reflags} &= ~$reflags{$s} if $^H{reflags}; # Turn off warnings if we turned them on. warnings->unimport('regexp') if $^H{re_strict}; } if ($^H{reflags}) { $^H \|= $flags_hint; } else { $^H &= ~$flags_hint; } } elsif ($s =~ s/^\///) { my $reflags = $^H{reflags} \|\| 0; my $seen_charset; my $x_count = 0; while ($s =~ m/( . )/gx) { local $_ = $1; if (/[adul]/) { # The 'a' may be repeated; hide this from the rest of the # code by counting and getting rid of all of them, then # changing to 'aa' if there is a repeat. if ($_ eq 'a') { my $sav_pos = pos $s; my $a_count = $s =~ s/a//g; pos $s = $sav_pos - 1; # -1 because got rid of the 'a' if ($a_count > 2) { require Carp; Carp::carp( qq 'The "a" flag may only appear a maximum of twice' ); } elsif ($a_count == 2) { $_ = 'aa'; } } if ($on) { if ($seen_charset) { require Carp; if ($seen_charset ne $_) { Carp::carp( qq 'The "$seen_charset" and "$_" flags ' .qq 'are exclusive' ); } else { Carp::carp( qq 'The "$seen_charset" flag may not appear ' .qq 'twice' ); } } $^H{reflags_charset} = $reflags{$_}; $seen_charset = $_; } else { delete $^H{reflags_charset} if defined $^H{reflags_charset} && $^H{reflags_charset} == $reflags{$_}; } } elsif (exists $reflags{$_}) { if ($_ eq 'x') { $x_count++; if ($x_count > 2) { require Carp; Carp::carp( qq 'The "x" flag may only appear a maximum of twice' ); } elsif ($x_count == 2) { $_ = 'xx'; # First time through got the /x } } $on ? $reflags \|= $reflags{$_} : ($reflags &= ~$reflags{$_}); } else { require Carp; Carp::carp( qq'Unknown regular expression flag "$_"' ); next ARG; } } ($^H{reflags} = $reflags or defined $^H{reflags_charset}) ? $^H \|= $flags_hint : ($^H &= ~$flags_hint); } else { require Carp; Carp::carp("Unknown \"re\" subpragma '$s' (known ones are: ", join(', ', map {qq('$_')} 'debug', 'debugcolor', sort keys %bitmask), ")"); } } if ($turning_all_off) { _load_unload(0); $^H{reflags} = 0; $^H{reflags_charset} = 0; $^H &= ~$flags_hint; } $bits; } sub import { shift; $^H \|= bits(1, @_); } sub unimport { shift; $^H &= ~ bits(0, @_); } 1; __END__

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