diff options
author | Daniel Friesel <daniel.friesel@uos.de> | 2020-04-29 13:01:31 +0200 |
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committer | Daniel Friesel <daniel.friesel@uos.de> | 2020-04-29 13:01:31 +0200 |
commit | 36d02c1227374b107aa351388c0b5e3df65e4fa9 (patch) | |
tree | 14ccf8e77c2203a8ca775c1f1ffe9c7cc997c320 /lib/FLAT/CMD.pm | |
parent | 4b79b253d268652a1ae7239b564aaff9c2871589 (diff) |
Remove most unused perl scripts and modules
Diffstat (limited to 'lib/FLAT/CMD.pm')
-rw-r--r-- | lib/FLAT/CMD.pm | 533 |
1 files changed, 0 insertions, 533 deletions
diff --git a/lib/FLAT/CMD.pm b/lib/FLAT/CMD.pm deleted file mode 100644 index 5bd0e2d..0000000 --- a/lib/FLAT/CMD.pm +++ /dev/null @@ -1,533 +0,0 @@ -package FLAT::CMD; -use FLAT; -use FLAT::Regex; -use FLAT::NFA; -use FLAT::DFA; -use Carp; - -=head1 NAME - -CMD - Commandline interface for the Formal Language & Automata Toolkit - -=head1 SYNOPSIS - -CMD.pm is provides an interface to the C<fash> commandline utility that offers -certain features implemented in FLAT. Consequently, this interface is also -available using the C<perl -MFLAT::CMD -e func> paradigm, but C<fash> makes -things a lot more convenient. - -=head1 USAGE - -All regular language objects in FLAT implement the following methods. -Specific regular language representations (regex, NFA, DFA) may implement -additional methods that are outlined in the repsective POD pages. - -=cut - -# Support for perl one liners - like what CPAN.pm uses #<- should move all to another file -use base 'Exporter'; #instead of: use Exporter (); @ISA = 'Exporter'; -use vars qw(@EXPORT $AUTOLOAD); - -@EXPORT = qw(compare dump dfa2gv nfa2gv pfa2gv dfa2undgv nfa2undgv pfa2undgv dfa2digraph - nfa2digraph pfa2digraph dfa2undirected nfa2undirected pfa2undirected random_pre random_re - savedfa test help - ); - -sub AUTOLOAD { - my($l) = $AUTOLOAD; - $l =~ s/.*:://; - my(%EXPORT); - @EXPORT{@EXPORT} = ''; - if (exists $EXPORT{$l}){ - FLAT::CMD->$l(@_); - } -} - -sub help { -print <<END -__________ .__ ___________.____ ___________ -\______ \ ___________| | \_ _____/| | _____\__ ___/ - | ___// __ \_ __ \ | | __) | | \__ \ | | - | | \ ___/| | \/ |__ | \ | |___ / __ \| | - |____| \___ >__| |____/ \___ / |_______ (____ /____| - \/ \/ \/ \/ - - Everything is wrt parallel regular expressions, i.e., - with the addtional shuffle operator, "&". All this - means is that you can use the ambersand (&) as a symbol - in the regular expressions you submit because it will be - detected as an operator.That said, if you avoid using - the "&" operator, you can forget about all that shuffle - business. - -%perl -MFLAT::CMD -e - "somestrings" 're1' # creates all valid strings via acyclic path, no cycles yet - "compare 're1','re2'" # comares 2 regexs | see note [2] - "dump 're1'" # dumps parse trees | see note[1] - "dfa2gv 're1'" # dumps graphviz digraph desc | see note[1] - "nfa2gv 're1'" # dumps graphviz digraph desc | see note[1] - "pfa2gv 're1'" # dumps graphviz digraph desc | see note[1] - "dfa2undgv 're1'" # dumps graphviz undirected graph desc | see note[1] - "nfa2undgv 're1'" # dumps graphviz undirected graph desc | see note[1] - "pfa2undgv 're1'" # dumps graphviz undirected graph desc | see note[1] - "dfa2digraph 're1'" # dumps directed graph without transitions - "nfa2digraph 're1'" # dumps directed graph without transitions - "pfa2digraph 're1'" # dumps directed graph without transitions - "dfa2undirected 're1'" # dumps undirected graph without transitions - "nfa2undirected 're1'" # dumps undirected graph without transitions - "pfa2undirected 're1'" # dumps undirected graph without transitions - random_pre - random_re - "savedfa 're1'" # converts PRE to min dfa, then serializes to disk - "test 'regex' 'string1'" # give a regex, reports if subsequent strings are valid - help - -NOTES: -[1] This means you could presumably do something like the following: - %perl -MFLAT -e command < text_file_with_1_regex_per_line.txt - ^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -[2] This command compares the minimal DFAs of each regular expression; - if there exists a exact 1-1 mapping of symbols, states, and - transitions then the DFAs are considered equal. This means that - "abc" will be equal to "def" To make matters more confusing, "ab+ac" - would be equivalent to "xy+xz"; or worse yet, "z(x+y)". So to the - 'compare' command, "ab+ac" == "xy+xz" == "z(x+y)". This however - does not translate into the situation where "ab+ac" will accept - the same LITERAL strings as "z(x+y)" because the symbols are obviously - different. - -CREDITS: -Blockhead, CPAN.pm (for the example of how to implement these one liners), -and #perl on irc.freenode.net for pointing out something I missed when -trying to copy CPAN one liner majik. - -Perl FLAT and all included modules are released under the same terms as Perl -itself. Cheers. - -SEE: -http://www.0x743.com/flat - -END -} - -# save to a dat file -sub savedfa { - my $PRE = shift; - # neat a better way to get input via stdin - if (!$PRE) { - while (<>) { - chomp; - $PRE = $_; - last; - } - } - use FLAT::Regex::WithExtraOps; - use FLAT::PFA; - use FLAT::NFA; - use FLAT::DFA; - use Storable; - # caches results, loads them in if detexted - my $dfa = FLAT::Regex::WithExtraOps->new($PRE)->as_pfa->as_nfa->as_dfa->as_min_dfa->trim_sinks; - store $dfa, "$PRE.dat"; -} - -# dumps directed graph using Kundu notation -# Usage: -# perl -MFLAT -e "pfa2directed('a&b&c&d*e*')" -sub test { - use FLAT::Regex::WithExtraOps; - use FLAT::PFA; - use FLAT::NFA; - use FLAT::DFA; - # handles multiple strings; first is considered the regex - if (@_) - { my $FA = FLAT::Regex::WithExtraOps->new(shift @_)->as_pfa()->as_nfa->as_dfa(); - foreach (@_) - { if ($FA->is_valid_string($_)) { - print "(+): $_\n"; - } else { - print "(-): $_\n"; - } - } - } else { - my $FA; - while (<STDIN>) { - chomp; - if ($. == 1) { #<-- uses first line as regex! - $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa->as_dfa(); - } else { - if ($FA->is_valid_string($_)) { - print "(+): $_\n"; - } else { - print "(-): $_\n"; - } - } - } - } -} - -# dumps parse tree -# Usage: -# perl -MFLAT -e "dump('re1','re2',...,'reN')" -# perl -MFLAT -e dump < list_of_regexes.dat -sub dump { - use FLAT::Regex::WithExtraOps; - use Data::Dumper; - if (@_) - { foreach (@_) - { my $PRE = FLAT::Regex::WithExtraOps->new($_); - print Dumper($PRE); }} - else - { while (<STDIN>) - { chomp; - my $PRE = FLAT::Regex::WithExtraOps->new($_); - print Dumper($PRE); } - } -} - -# dumps graphviz notation -# Usage: -# perl -MFLAT -e "dfa2gv('a&b&c&d*e*')" -sub dfa2gv { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::NFA; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa()->as_dfa()->as_min_dfa()->trim_sinks(); - print $FA->as_graphviz;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa()->as_dfa->as_min_dfa()->trim_sinks(); - print $FA->as_graphviz;} - } -} - -# dumps graphviz notation -# Usage: -# perl -MFLAT -e "nfa2gv('a&b&c&d*e*')" -sub nfa2gv { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::NFA; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa(); - print $FA->as_graphviz;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa(); - print $FA->as_graphviz;} - } -} - -# dumps graphviz notation -# Usage: -# perl -MFLAT -e "pfa2gv('a&b&c&d*e*')" -sub pfa2gv { - use FLAT::Regex::WithExtraOps; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa(); - print $FA->as_graphviz;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa(); - print $FA->as_graphviz;} - } -} - -#as_undirected_graphviz - -# dumps graphviz notation -# Usage: -# perl -MFLAT -e "dfa2undgv('a&b&c&d*e*')" -sub dfa2undgv { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::NFA; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa()->as_dfa()->as_min_dfa()->trim_sinks(); - print $FA->as_undirected_graphviz;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa()->as_dfa->as_min_dfa()->trim_sinks(); - print $FA->as_undirected_graphviz;} - } -} - -# dumps graphviz notation -# Usage: -# perl -MFLAT -e "nfa2undgv('a&b&c&d*e*')" -sub nfa2undgv { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::NFA; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa(); - print $FA->as_undirected_graphviz;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa(); - print $FA->as_undirected_graphviz;} - } -} - -# dumps graphviz notation -# Usage: -# perl -MFLAT -e "pfa2undgv('a&b&c&d*e*')" -sub pfa2undgv { - use FLAT::Regex::WithExtraOps; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa(); - print $FA->as_undirected_graphviz;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa(); - print $FA->as_undirected_graphviz;} - } -} - -# dumps directed graph using Kundu notation -# Usage: -# perl -MFLAT -e "dfa2directed('a&b&c&d*e*')" -sub dfa2digraph { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::NFA; - use FLAT::PFA; - # trims sink states from min-dfa since transitions are gone - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa()->as_dfa->as_min_dfa->trim_sinks(); - print $FA->as_digraph;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa()->as_dfa->as_min_dfa->trim_sinks(); - print $FA->as_digraph;} - } - print "\n"; -} - -# dumps directed graph using Kundu notation -# Usage: -# perl -MFLAT -e "nfa2directed('a&b&c&d*e*')" -sub nfa2digraph { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::NFA; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa(); - print $FA->as_digraph;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa(); - print $FA->as_digraph;} - } - print "\n"; -} - -# dumps directed graph using Kundu notation -# Usage: -# perl -MFLAT -e "pfa2directed('a&b&c&d*e*')" -sub pfa2digraph { - use FLAT::Regex::WithExtraOps; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa(); - print $FA->as_digraph;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa(); - print $FA->as_digraph;} - } - print "\n"; -} - -# dumps undirected graph using Kundu notation -# Usage: -# perl -MFLAT -e "dfa2undirected('a&b&c&d*e*')" -sub dfa2undirected { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::NFA; - use FLAT::PFA; - # trims sink states from min-dfa since transitions are gone - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa()->as_dfa->as_min_dfa->trim_sinks(); - print $FA->as_undirected;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa()->as_dfa->as_min_dfa->trim_sinks(); - print $FA->as_undirected;} - } - print "\n"; -} - -# dumps undirected graph using Kundu notation -# Usage: -# perl -MFLAT -e "nfa2undirected('a&b&c&d*e*')" -sub nfa2undirected { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::NFA; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa(); - print $FA->as_undirected;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa()->as_nfa(); - print $FA->as_undirected;} - } - print "\n"; -} - -# dumps undirected graph using Kundu notation -# Usage: -# perl -MFLAT -e "pfa2undirected('a&b&c&d*e*')" -sub pfa2undirected { - use FLAT::Regex::WithExtraOps; - use FLAT::PFA; - if (@_) - { foreach (@_) - { my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa(); - print $FA->as_undirected;} } - else - { while (<STDIN>) - { chomp; - my $FA = FLAT::Regex::WithExtraOps->new($_)->as_pfa(); - print $FA->as_undirected;} - } - print "\n"; -} - -# compares 2 give PREs -# Usage: -# perl -MFLAT -e "compare('a','a&b&c&d*e*')" #<-- no match, btw -sub compare { - use FLAT::Regex::WithExtraOps; - use FLAT::DFA; - use FLAT::PFA; - my $PFA1 = FLAT::Regex::WithExtraOps->new(shift)->as_pfa(); - my $PFA2 = FLAT::Regex::WithExtraOps->new(shift)->as_pfa(); - my $DFA1 = $PFA1->as_nfa->as_min_dfa; - my $DFA2 = $PFA2->as_nfa->as_min_dfa; - if ($DFA1->equals($DFA2)) { - print "Yes\n"; - } else { - print "No\n"; - } -} - -# prints random PRE -# Usage: -# perl -MFLAT -e random_pre -sub random_pre { - my $and_chance = shift; - # skirt around deep recursion warning annoyance - local $SIG{__WARN__} = sub { $_[0] =~ /^Deep recursion/ or warn $_[0] }; - srand $$; - my %CMDLINEOPTS = (); - # Percent chance of each operator occuring - $CMDLINEOPTS{LENGTH} = 32; - $CMDLINEOPTS{OR} = 6; - $CMDLINEOPTS{STAR} = 10; - $CMDLINEOPTS{OPEN} = 5; - $CMDLINEOPTS{CLOSE} = 0; - $CMDLINEOPTS{n} = 1; - $CMDLINEOPTS{AND} = 10; #<-- default - $CMDLINEOPTS{AND} = $and_chance if ($and_chance == 0); #<-- to make it just an re (no shuffle) - - - my $getRandomChar = sub { - my $ch = ''; - # Get a random character between 0 and 127. - do { - $ch = int(rand 2); - } while ($ch !~ m/[a-zA-Z0-9]/); - return $ch; - }; - - my $getRandomRE = sub { - my $str = ''; - my @closeparens = (); - for (1..$CMDLINEOPTS{LENGTH}) { - $str .= $getRandomChar->(); - # % chance of an "or" - if (int(rand 100) < $CMDLINEOPTS{OR}) { - $str .= "|1"; - } elsif (int(rand 100) < $CMDLINEOPTS{AND}) { - $str .= "&0"; - } elsif (int(rand 100) < $CMDLINEOPTS{STAR}) { - $str .= "*1"; - } elsif (int(rand 100) < $CMDLINEOPTS{OPEN}) { - $str .= "("; - push(@closeparens,'0101)'); - } elsif (int(rand 100) < $CMDLINEOPTS{CLOSE} && @closeparens) { - $str .= pop(@closeparens); - } - } - # empty out @closeparens if there are still some left - if (@closeparens) { - $str .= join('',@closeparens); - } - return $str; - }; - - for (1..$CMDLINEOPTS{n}) { - print $getRandomRE->(),"\n"; - } -} - -# prints random RE (no & operator) -# Usage: -# perl -MFLAT -e random_re -sub random_re { - shift->random_pre(0); -} - -1; - -__END__ - -=head1 AUTHORS & ACKNOWLEDGEMENTS - -FLAT is written by Mike Rosulek E<lt>mike at mikero dot comE<gt> and -Brett Estrade E<lt>estradb at gmail dot comE<gt>. - -The initial version (FLAT::Legacy) by Brett Estrade was work towards an -MS thesis at the University of Southern Mississippi. - -Please visit the Wiki at http://www.0x743.com/flat - -=head1 LICENSE - -This module is free software; you can redistribute it and/or modify it under -the same terms as Perl itself. - |