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+# Getopt::Long.pm -- Universal options parsing
+
+package Getopt::Long;
+
+# RCS Status : $Id: Long.pm,v 2.76 2009/03/30 20:54:30 jv Exp $
+# Author : Johan Vromans
+# Created On : Tue Sep 11 15:00:12 1990
+# Last Modified By: Johan Vromans
+# Last Modified On: Mon Mar 30 22:51:17 2009
+# Update Count : 1601
+# Status : Released
+
+################ Module Preamble ################
+
+use 5.004;
+
+use strict;
+
+use vars qw($VERSION);
+$VERSION = 2.38;
+# For testing versions only.
+#use vars qw($VERSION_STRING);
+#$VERSION_STRING = "2.38";
+
+use Exporter;
+use vars qw(@ISA @EXPORT @EXPORT_OK);
+@ISA = qw(Exporter);
+
+# Exported subroutines.
+sub GetOptions(@); # always
+sub GetOptionsFromArray(@); # on demand
+sub GetOptionsFromString(@); # on demand
+sub Configure(@); # on demand
+sub HelpMessage(@); # on demand
+sub VersionMessage(@); # in demand
+
+BEGIN {
+ # Init immediately so their contents can be used in the 'use vars' below.
+ @EXPORT = qw(&GetOptions $REQUIRE_ORDER $PERMUTE $RETURN_IN_ORDER);
+ @EXPORT_OK = qw(&HelpMessage &VersionMessage &Configure
+ &GetOptionsFromArray &GetOptionsFromString);
+}
+
+# User visible variables.
+use vars @EXPORT, @EXPORT_OK;
+use vars qw($error $debug $major_version $minor_version);
+# Deprecated visible variables.
+use vars qw($autoabbrev $getopt_compat $ignorecase $bundling $order
+ $passthrough);
+# Official invisible variables.
+use vars qw($genprefix $caller $gnu_compat $auto_help $auto_version $longprefix);
+
+# Public subroutines.
+sub config(@); # deprecated name
+
+# Private subroutines.
+sub ConfigDefaults();
+sub ParseOptionSpec($$);
+sub OptCtl($);
+sub FindOption($$$$$);
+sub ValidValue ($$$$$);
+
+################ Local Variables ################
+
+# $requested_version holds the version that was mentioned in the 'use'
+# or 'require', if any. It can be used to enable or disable specific
+# features.
+my $requested_version = 0;
+
+################ Resident subroutines ################
+
+sub ConfigDefaults() {
+ # Handle POSIX compliancy.
+ if ( defined $ENV{"POSIXLY_CORRECT"} ) {
+ $genprefix = "(--|-)";
+ $autoabbrev = 0; # no automatic abbrev of options
+ $bundling = 0; # no bundling of single letter switches
+ $getopt_compat = 0; # disallow '+' to start options
+ $order = $REQUIRE_ORDER;
+ }
+ else {
+ $genprefix = "(--|-|\\+)";
+ $autoabbrev = 1; # automatic abbrev of options
+ $bundling = 0; # bundling off by default
+ $getopt_compat = 1; # allow '+' to start options
+ $order = $PERMUTE;
+ }
+ # Other configurable settings.
+ $debug = 0; # for debugging
+ $error = 0; # error tally
+ $ignorecase = 1; # ignore case when matching options
+ $passthrough = 0; # leave unrecognized options alone
+ $gnu_compat = 0; # require --opt=val if value is optional
+ $longprefix = "(--)"; # what does a long prefix look like
+}
+
+# Override import.
+sub import {
+ my $pkg = shift; # package
+ my @syms = (); # symbols to import
+ my @config = (); # configuration
+ my $dest = \@syms; # symbols first
+ for ( @_ ) {
+ if ( $_ eq ':config' ) {
+ $dest = \@config; # config next
+ next;
+ }
+ push(@$dest, $_); # push
+ }
+ # Hide one level and call super.
+ local $Exporter::ExportLevel = 1;
+ push(@syms, qw(&GetOptions)) if @syms; # always export GetOptions
+ $pkg->SUPER::import(@syms);
+ # And configure.
+ Configure(@config) if @config;
+}
+
+################ Initialization ################
+
+# Values for $order. See GNU getopt.c for details.
+($REQUIRE_ORDER, $PERMUTE, $RETURN_IN_ORDER) = (0..2);
+# Version major/minor numbers.
+($major_version, $minor_version) = $VERSION =~ /^(\d+)\.(\d+)/;
+
+ConfigDefaults();
+
+################ OO Interface ################
+
+package Getopt::Long::Parser;
+
+# Store a copy of the default configuration. Since ConfigDefaults has
+# just been called, what we get from Configure is the default.
+my $default_config = do {
+ Getopt::Long::Configure ()
+};
+
+sub new {
+ my $that = shift;
+ my $class = ref($that) || $that;
+ my %atts = @_;
+
+ # Register the callers package.
+ my $self = { caller_pkg => (caller)[0] };
+
+ bless ($self, $class);
+
+ # Process config attributes.
+ if ( defined $atts{config} ) {
+ my $save = Getopt::Long::Configure ($default_config, @{$atts{config}});
+ $self->{settings} = Getopt::Long::Configure ($save);
+ delete ($atts{config});
+ }
+ # Else use default config.
+ else {
+ $self->{settings} = $default_config;
+ }
+
+ if ( %atts ) { # Oops
+ die(__PACKAGE__.": unhandled attributes: ".
+ join(" ", sort(keys(%atts)))."\n");
+ }
+
+ $self;
+}
+
+sub configure {
+ my ($self) = shift;
+
+ # Restore settings, merge new settings in.
+ my $save = Getopt::Long::Configure ($self->{settings}, @_);
+
+ # Restore orig config and save the new config.
+ $self->{settings} = Getopt::Long::Configure ($save);
+}
+
+sub getoptions {
+ my ($self) = shift;
+
+ # Restore config settings.
+ my $save = Getopt::Long::Configure ($self->{settings});
+
+ # Call main routine.
+ my $ret = 0;
+ $Getopt::Long::caller = $self->{caller_pkg};
+
+ eval {
+ # Locally set exception handler to default, otherwise it will
+ # be called implicitly here, and again explicitly when we try
+ # to deliver the messages.
+ local ($SIG{__DIE__}) = 'DEFAULT';
+ $ret = Getopt::Long::GetOptions (@_);
+ };
+
+ # Restore saved settings.
+ Getopt::Long::Configure ($save);
+
+ # Handle errors and return value.
+ die ($@) if $@;
+ return $ret;
+}
+
+package Getopt::Long;
+
+################ Back to Normal ################
+
+# Indices in option control info.
+# Note that ParseOptions uses the fields directly. Search for 'hard-wired'.
+use constant CTL_TYPE => 0;
+#use constant CTL_TYPE_FLAG => '';
+#use constant CTL_TYPE_NEG => '!';
+#use constant CTL_TYPE_INCR => '+';
+#use constant CTL_TYPE_INT => 'i';
+#use constant CTL_TYPE_INTINC => 'I';
+#use constant CTL_TYPE_XINT => 'o';
+#use constant CTL_TYPE_FLOAT => 'f';
+#use constant CTL_TYPE_STRING => 's';
+
+use constant CTL_CNAME => 1;
+
+use constant CTL_DEFAULT => 2;
+
+use constant CTL_DEST => 3;
+ use constant CTL_DEST_SCALAR => 0;
+ use constant CTL_DEST_ARRAY => 1;
+ use constant CTL_DEST_HASH => 2;
+ use constant CTL_DEST_CODE => 3;
+
+use constant CTL_AMIN => 4;
+use constant CTL_AMAX => 5;
+
+# FFU.
+#use constant CTL_RANGE => ;
+#use constant CTL_REPEAT => ;
+
+# Rather liberal patterns to match numbers.
+use constant PAT_INT => "[-+]?_*[0-9][0-9_]*";
+use constant PAT_XINT =>
+ "(?:".
+ "[-+]?_*[1-9][0-9_]*".
+ "|".
+ "0x_*[0-9a-f][0-9a-f_]*".
+ "|".
+ "0b_*[01][01_]*".
+ "|".
+ "0[0-7_]*".
+ ")";
+use constant PAT_FLOAT => "[-+]?[0-9._]+(\.[0-9_]+)?([eE][-+]?[0-9_]+)?";
+
+sub GetOptions(@) {
+ # Shift in default array.
+ unshift(@_, \@ARGV);
+ # Try to keep caller() and Carp consitent.
+ goto &GetOptionsFromArray;
+}
+
+sub GetOptionsFromString(@) {
+ my ($string) = shift;
+ require Text::ParseWords;
+ my $args = [ Text::ParseWords::shellwords($string) ];
+ $caller ||= (caller)[0]; # current context
+ my $ret = GetOptionsFromArray($args, @_);
+ return ( $ret, $args ) if wantarray;
+ if ( @$args ) {
+ $ret = 0;
+ warn("GetOptionsFromString: Excess data \"@$args\" in string \"$string\"\n");
+ }
+ $ret;
+}
+
+sub GetOptionsFromArray(@) {
+
+ my ($argv, @optionlist) = @_; # local copy of the option descriptions
+ my $argend = '--'; # option list terminator
+ my %opctl = (); # table of option specs
+ my $pkg = $caller || (caller)[0]; # current context
+ # Needed if linkage is omitted.
+ my @ret = (); # accum for non-options
+ my %linkage; # linkage
+ my $userlinkage; # user supplied HASH
+ my $opt; # current option
+ my $prefix = $genprefix; # current prefix
+
+ $error = '';
+
+ if ( $debug ) {
+ # Avoid some warnings if debugging.
+ local ($^W) = 0;
+ print STDERR
+ ("Getopt::Long $Getopt::Long::VERSION (",
+ '$Revision: 2.76 $', ") ",
+ "called from package \"$pkg\".",
+ "\n ",
+ "argv: (@$argv)",
+ "\n ",
+ "autoabbrev=$autoabbrev,".
+ "bundling=$bundling,",
+ "getopt_compat=$getopt_compat,",
+ "gnu_compat=$gnu_compat,",
+ "order=$order,",
+ "\n ",
+ "ignorecase=$ignorecase,",
+ "requested_version=$requested_version,",
+ "passthrough=$passthrough,",
+ "genprefix=\"$genprefix\",",
+ "longprefix=\"$longprefix\".",
+ "\n");
+ }
+
+ # Check for ref HASH as first argument.
+ # First argument may be an object. It's OK to use this as long
+ # as it is really a hash underneath.
+ $userlinkage = undef;
+ if ( @optionlist && ref($optionlist[0]) and
+ UNIVERSAL::isa($optionlist[0],'HASH') ) {
+ $userlinkage = shift (@optionlist);
+ print STDERR ("=> user linkage: $userlinkage\n") if $debug;
+ }
+
+ # See if the first element of the optionlist contains option
+ # starter characters.
+ # Be careful not to interpret '<>' as option starters.
+ if ( @optionlist && $optionlist[0] =~ /^\W+$/
+ && !($optionlist[0] eq '<>'
+ && @optionlist > 0
+ && ref($optionlist[1])) ) {
+ $prefix = shift (@optionlist);
+ # Turn into regexp. Needs to be parenthesized!
+ $prefix =~ s/(\W)/\\$1/g;
+ $prefix = "([" . $prefix . "])";
+ print STDERR ("=> prefix=\"$prefix\"\n") if $debug;
+ }
+
+ # Verify correctness of optionlist.
+ %opctl = ();
+ while ( @optionlist ) {
+ my $opt = shift (@optionlist);
+
+ unless ( defined($opt) ) {
+ $error .= "Undefined argument in option spec\n";
+ next;
+ }
+
+ # Strip leading prefix so people can specify "--foo=i" if they like.
+ $opt = $+ if $opt =~ /^$prefix+(.*)$/s;
+
+ if ( $opt eq '<>' ) {
+ if ( (defined $userlinkage)
+ && !(@optionlist > 0 && ref($optionlist[0]))
+ && (exists $userlinkage->{$opt})
+ && ref($userlinkage->{$opt}) ) {
+ unshift (@optionlist, $userlinkage->{$opt});
+ }
+ unless ( @optionlist > 0
+ && ref($optionlist[0]) && ref($optionlist[0]) eq 'CODE' ) {
+ $error .= "Option spec <> requires a reference to a subroutine\n";
+ # Kill the linkage (to avoid another error).
+ shift (@optionlist)
+ if @optionlist && ref($optionlist[0]);
+ next;
+ }
+ $linkage{'<>'} = shift (@optionlist);
+ next;
+ }
+
+ # Parse option spec.
+ my ($name, $orig) = ParseOptionSpec ($opt, \%opctl);
+ unless ( defined $name ) {
+ # Failed. $orig contains the error message. Sorry for the abuse.
+ $error .= $orig;
+ # Kill the linkage (to avoid another error).
+ shift (@optionlist)
+ if @optionlist && ref($optionlist[0]);
+ next;
+ }
+
+ # If no linkage is supplied in the @optionlist, copy it from
+ # the userlinkage if available.
+ if ( defined $userlinkage ) {
+ unless ( @optionlist > 0 && ref($optionlist[0]) ) {
+ if ( exists $userlinkage->{$orig} &&
+ ref($userlinkage->{$orig}) ) {
+ print STDERR ("=> found userlinkage for \"$orig\": ",
+ "$userlinkage->{$orig}\n")
+ if $debug;
+ unshift (@optionlist, $userlinkage->{$orig});
+ }
+ else {
+ # Do nothing. Being undefined will be handled later.
+ next;
+ }
+ }
+ }
+
+ # Copy the linkage. If omitted, link to global variable.
+ if ( @optionlist > 0 && ref($optionlist[0]) ) {
+ print STDERR ("=> link \"$orig\" to $optionlist[0]\n")
+ if $debug;
+ my $rl = ref($linkage{$orig} = shift (@optionlist));
+
+ if ( $rl eq "ARRAY" ) {
+ $opctl{$name}[CTL_DEST] = CTL_DEST_ARRAY;
+ }
+ elsif ( $rl eq "HASH" ) {
+ $opctl{$name}[CTL_DEST] = CTL_DEST_HASH;
+ }
+ elsif ( $rl eq "SCALAR" || $rl eq "REF" ) {
+# if ( $opctl{$name}[CTL_DEST] == CTL_DEST_ARRAY ) {
+# my $t = $linkage{$orig};
+# $$t = $linkage{$orig} = [];
+# }
+# elsif ( $opctl{$name}[CTL_DEST] == CTL_DEST_HASH ) {
+# }
+# else {
+ # Ok.
+# }
+ }
+ elsif ( $rl eq "CODE" ) {
+ # Ok.
+ }
+ else {
+ $error .= "Invalid option linkage for \"$opt\"\n";
+ }
+ }
+ else {
+ # Link to global $opt_XXX variable.
+ # Make sure a valid perl identifier results.
+ my $ov = $orig;
+ $ov =~ s/\W/_/g;
+ if ( $opctl{$name}[CTL_DEST] == CTL_DEST_ARRAY ) {
+ print STDERR ("=> link \"$orig\" to \@$pkg","::opt_$ov\n")
+ if $debug;
+ eval ("\$linkage{\$orig} = \\\@".$pkg."::opt_$ov;");
+ }
+ elsif ( $opctl{$name}[CTL_DEST] == CTL_DEST_HASH ) {
+ print STDERR ("=> link \"$orig\" to \%$pkg","::opt_$ov\n")
+ if $debug;
+ eval ("\$linkage{\$orig} = \\\%".$pkg."::opt_$ov;");
+ }
+ else {
+ print STDERR ("=> link \"$orig\" to \$$pkg","::opt_$ov\n")
+ if $debug;
+ eval ("\$linkage{\$orig} = \\\$".$pkg."::opt_$ov;");
+ }
+ }
+
+ if ( $opctl{$name}[CTL_TYPE] eq 'I'
+ && ( $opctl{$name}[CTL_DEST] == CTL_DEST_ARRAY
+ || $opctl{$name}[CTL_DEST] == CTL_DEST_HASH )
+ ) {
+ $error .= "Invalid option linkage for \"$opt\"\n";
+ }
+
+ }
+
+ # Bail out if errors found.
+ die ($error) if $error;
+ $error = 0;
+
+ # Supply --version and --help support, if needed and allowed.
+ if ( defined($auto_version) ? $auto_version : ($requested_version >= 2.3203) ) {
+ if ( !defined($opctl{version}) ) {
+ $opctl{version} = ['','version',0,CTL_DEST_CODE,undef];
+ $linkage{version} = \&VersionMessage;
+ }
+ $auto_version = 1;
+ }
+ if ( defined($auto_help) ? $auto_help : ($requested_version >= 2.3203) ) {
+ if ( !defined($opctl{help}) && !defined($opctl{'?'}) ) {
+ $opctl{help} = $opctl{'?'} = ['','help',0,CTL_DEST_CODE,undef];
+ $linkage{help} = \&HelpMessage;
+ }
+ $auto_help = 1;
+ }
+
+ # Show the options tables if debugging.
+ if ( $debug ) {
+ my ($arrow, $k, $v);
+ $arrow = "=> ";
+ while ( ($k,$v) = each(%opctl) ) {
+ print STDERR ($arrow, "\$opctl{$k} = $v ", OptCtl($v), "\n");
+ $arrow = " ";
+ }
+ }
+
+ # Process argument list
+ my $goon = 1;
+ while ( $goon && @$argv > 0 ) {
+
+ # Get next argument.
+ $opt = shift (@$argv);
+ print STDERR ("=> arg \"", $opt, "\"\n") if $debug;
+
+ # Double dash is option list terminator.
+ if ( $opt eq $argend ) {
+ push (@ret, $argend) if $passthrough;
+ last;
+ }
+
+ # Look it up.
+ my $tryopt = $opt;
+ my $found; # success status
+ my $key; # key (if hash type)
+ my $arg; # option argument
+ my $ctl; # the opctl entry
+
+ ($found, $opt, $ctl, $arg, $key) =
+ FindOption ($argv, $prefix, $argend, $opt, \%opctl);
+
+ if ( $found ) {
+
+ # FindOption undefines $opt in case of errors.
+ next unless defined $opt;
+
+ my $argcnt = 0;
+ while ( defined $arg ) {
+
+ # Get the canonical name.
+ print STDERR ("=> cname for \"$opt\" is ") if $debug;
+ $opt = $ctl->[CTL_CNAME];
+ print STDERR ("\"$ctl->[CTL_CNAME]\"\n") if $debug;
+
+ if ( defined $linkage{$opt} ) {
+ print STDERR ("=> ref(\$L{$opt}) -> ",
+ ref($linkage{$opt}), "\n") if $debug;
+
+ if ( ref($linkage{$opt}) eq 'SCALAR'
+ || ref($linkage{$opt}) eq 'REF' ) {
+ if ( $ctl->[CTL_TYPE] eq '+' ) {
+ print STDERR ("=> \$\$L{$opt} += \"$arg\"\n")
+ if $debug;
+ if ( defined ${$linkage{$opt}} ) {
+ ${$linkage{$opt}} += $arg;
+ }
+ else {
+ ${$linkage{$opt}} = $arg;
+ }
+ }
+ elsif ( $ctl->[CTL_DEST] == CTL_DEST_ARRAY ) {
+ print STDERR ("=> ref(\$L{$opt}) auto-vivified",
+ " to ARRAY\n")
+ if $debug;
+ my $t = $linkage{$opt};
+ $$t = $linkage{$opt} = [];
+ print STDERR ("=> push(\@{\$L{$opt}, \"$arg\")\n")
+ if $debug;
+ push (@{$linkage{$opt}}, $arg);
+ }
+ elsif ( $ctl->[CTL_DEST] == CTL_DEST_HASH ) {
+ print STDERR ("=> ref(\$L{$opt}) auto-vivified",
+ " to HASH\n")
+ if $debug;
+ my $t = $linkage{$opt};
+ $$t = $linkage{$opt} = {};
+ print STDERR ("=> \$\$L{$opt}->{$key} = \"$arg\"\n")
+ if $debug;
+ $linkage{$opt}->{$key} = $arg;
+ }
+ else {
+ print STDERR ("=> \$\$L{$opt} = \"$arg\"\n")
+ if $debug;
+ ${$linkage{$opt}} = $arg;
+ }
+ }
+ elsif ( ref($linkage{$opt}) eq 'ARRAY' ) {
+ print STDERR ("=> push(\@{\$L{$opt}, \"$arg\")\n")
+ if $debug;
+ push (@{$linkage{$opt}}, $arg);
+ }
+ elsif ( ref($linkage{$opt}) eq 'HASH' ) {
+ print STDERR ("=> \$\$L{$opt}->{$key} = \"$arg\"\n")
+ if $debug;
+ $linkage{$opt}->{$key} = $arg;
+ }
+ elsif ( ref($linkage{$opt}) eq 'CODE' ) {
+ print STDERR ("=> &L{$opt}(\"$opt\"",
+ $ctl->[CTL_DEST] == CTL_DEST_HASH ? ", \"$key\"" : "",
+ ", \"$arg\")\n")
+ if $debug;
+ my $eval_error = do {
+ local $@;
+ local $SIG{__DIE__} = 'DEFAULT';
+ eval {
+ &{$linkage{$opt}}
+ (Getopt::Long::CallBack->new
+ (name => $opt,
+ ctl => $ctl,
+ opctl => \%opctl,
+ linkage => \%linkage,
+ prefix => $prefix,
+ ),
+ $ctl->[CTL_DEST] == CTL_DEST_HASH ? ($key) : (),
+ $arg);
+ };
+ $@;
+ };
+ print STDERR ("=> die($eval_error)\n")
+ if $debug && $eval_error ne '';
+ if ( $eval_error =~ /^!/ ) {
+ if ( $eval_error =~ /^!FINISH\b/ ) {
+ $goon = 0;
+ }
+ }
+ elsif ( $eval_error ne '' ) {
+ warn ($eval_error);
+ $error++;
+ }
+ }
+ else {
+ print STDERR ("Invalid REF type \"", ref($linkage{$opt}),
+ "\" in linkage\n");
+ die("Getopt::Long -- internal error!\n");
+ }
+ }
+ # No entry in linkage means entry in userlinkage.
+ elsif ( $ctl->[CTL_DEST] == CTL_DEST_ARRAY ) {
+ if ( defined $userlinkage->{$opt} ) {
+ print STDERR ("=> push(\@{\$L{$opt}}, \"$arg\")\n")
+ if $debug;
+ push (@{$userlinkage->{$opt}}, $arg);
+ }
+ else {
+ print STDERR ("=>\$L{$opt} = [\"$arg\"]\n")
+ if $debug;
+ $userlinkage->{$opt} = [$arg];
+ }
+ }
+ elsif ( $ctl->[CTL_DEST] == CTL_DEST_HASH ) {
+ if ( defined $userlinkage->{$opt} ) {
+ print STDERR ("=> \$L{$opt}->{$key} = \"$arg\"\n")
+ if $debug;
+ $userlinkage->{$opt}->{$key} = $arg;
+ }
+ else {
+ print STDERR ("=>\$L{$opt} = {$key => \"$arg\"}\n")
+ if $debug;
+ $userlinkage->{$opt} = {$key => $arg};
+ }
+ }
+ else {
+ if ( $ctl->[CTL_TYPE] eq '+' ) {
+ print STDERR ("=> \$L{$opt} += \"$arg\"\n")
+ if $debug;
+ if ( defined $userlinkage->{$opt} ) {
+ $userlinkage->{$opt} += $arg;
+ }
+ else {
+ $userlinkage->{$opt} = $arg;
+ }
+ }
+ else {
+ print STDERR ("=>\$L{$opt} = \"$arg\"\n") if $debug;
+ $userlinkage->{$opt} = $arg;
+ }
+ }
+
+ $argcnt++;
+ last if $argcnt >= $ctl->[CTL_AMAX] && $ctl->[CTL_AMAX] != -1;
+ undef($arg);
+
+ # Need more args?
+ if ( $argcnt < $ctl->[CTL_AMIN] ) {
+ if ( @$argv ) {
+ if ( ValidValue($ctl, $argv->[0], 1, $argend, $prefix) ) {
+ $arg = shift(@$argv);
+ $arg =~ tr/_//d if $ctl->[CTL_TYPE] =~ /^[iIo]$/;
+ ($key,$arg) = $arg =~ /^([^=]+)=(.*)/
+ if $ctl->[CTL_DEST] == CTL_DEST_HASH;
+ next;
+ }
+ warn("Value \"$$argv[0]\" invalid for option $opt\n");
+ $error++;
+ }
+ else {
+ warn("Insufficient arguments for option $opt\n");
+ $error++;
+ }
+ }
+
+ # Any more args?
+ if ( @$argv && ValidValue($ctl, $argv->[0], 0, $argend, $prefix) ) {
+ $arg = shift(@$argv);
+ $arg =~ tr/_//d if $ctl->[CTL_TYPE] =~ /^[iIo]$/;
+ ($key,$arg) = $arg =~ /^([^=]+)=(.*)/
+ if $ctl->[CTL_DEST] == CTL_DEST_HASH;
+ next;
+ }
+ }
+ }
+
+ # Not an option. Save it if we $PERMUTE and don't have a <>.
+ elsif ( $order == $PERMUTE ) {
+ # Try non-options call-back.
+ my $cb;
+ if ( (defined ($cb = $linkage{'<>'})) ) {
+ print STDERR ("=> &L{$tryopt}(\"$tryopt\")\n")
+ if $debug;
+ my $eval_error = do {
+ local $@;
+ local $SIG{__DIE__} = 'DEFAULT';
+ eval {
+ &$cb
+ (Getopt::Long::CallBack->new
+ (name => $tryopt,
+ ctl => $ctl,
+ opctl => \%opctl,
+ linkage => \%linkage,
+ prefix => $prefix,
+ ));
+ };
+ $@;
+ };
+ print STDERR ("=> die($eval_error)\n")
+ if $debug && $eval_error ne '';
+ if ( $eval_error =~ /^!/ ) {
+ if ( $eval_error =~ /^!FINISH\b/ ) {
+ $goon = 0;
+ }
+ }
+ elsif ( $eval_error ne '' ) {
+ warn ($eval_error);
+ $error++;
+ }
+ }
+ else {
+ print STDERR ("=> saving \"$tryopt\" ",
+ "(not an option, may permute)\n") if $debug;
+ push (@ret, $tryopt);
+ }
+ next;
+ }
+
+ # ...otherwise, terminate.
+ else {
+ # Push this one back and exit.
+ unshift (@$argv, $tryopt);
+ return ($error == 0);
+ }
+
+ }
+
+ # Finish.
+ if ( @ret && $order == $PERMUTE ) {
+ # Push back accumulated arguments
+ print STDERR ("=> restoring \"", join('" "', @ret), "\"\n")
+ if $debug;
+ unshift (@$argv, @ret);
+ }
+
+ return ($error == 0);
+}
+
+# A readable representation of what's in an optbl.
+sub OptCtl ($) {
+ my ($v) = @_;
+ my @v = map { defined($_) ? ($_) : ("<undef>") } @$v;
+ "[".
+ join(",",
+ "\"$v[CTL_TYPE]\"",
+ "\"$v[CTL_CNAME]\"",
+ "\"$v[CTL_DEFAULT]\"",
+ ("\$","\@","\%","\&")[$v[CTL_DEST] || 0],
+ $v[CTL_AMIN] || '',
+ $v[CTL_AMAX] || '',
+# $v[CTL_RANGE] || '',
+# $v[CTL_REPEAT] || '',
+ ). "]";
+}
+
+# Parse an option specification and fill the tables.
+sub ParseOptionSpec ($$) {
+ my ($opt, $opctl) = @_;
+
+ # Match option spec.
+ if ( $opt !~ m;^
+ (
+ # Option name
+ (?: \w+[-\w]* )
+ # Alias names, or "?"
+ (?: \| (?: \? | \w[-\w]* ) )*
+ )?
+ (
+ # Either modifiers ...
+ [!+]
+ |
+ # ... or a value/dest/repeat specification
+ [=:] [ionfs] [@%]? (?: \{\d*,?\d*\} )?
+ |
+ # ... or an optional-with-default spec
+ : (?: -?\d+ | \+ ) [@%]?
+ )?
+ $;x ) {
+ return (undef, "Error in option spec: \"$opt\"\n");
+ }
+
+ my ($names, $spec) = ($1, $2);
+ $spec = '' unless defined $spec;
+
+ # $orig keeps track of the primary name the user specified.
+ # This name will be used for the internal or external linkage.
+ # In other words, if the user specifies "FoO|BaR", it will
+ # match any case combinations of 'foo' and 'bar', but if a global
+ # variable needs to be set, it will be $opt_FoO in the exact case
+ # as specified.
+ my $orig;
+
+ my @names;
+ if ( defined $names ) {
+ @names = split (/\|/, $names);
+ $orig = $names[0];
+ }
+ else {
+ @names = ('');
+ $orig = '';
+ }
+
+ # Construct the opctl entries.
+ my $entry;
+ if ( $spec eq '' || $spec eq '+' || $spec eq '!' ) {
+ # Fields are hard-wired here.
+ $entry = [$spec,$orig,undef,CTL_DEST_SCALAR,0,0];
+ }
+ elsif ( $spec =~ /^:(-?\d+|\+)([@%])?$/ ) {
+ my $def = $1;
+ my $dest = $2;
+ my $type = $def eq '+' ? 'I' : 'i';
+ $dest ||= '$';
+ $dest = $dest eq '@' ? CTL_DEST_ARRAY
+ : $dest eq '%' ? CTL_DEST_HASH : CTL_DEST_SCALAR;
+ # Fields are hard-wired here.
+ $entry = [$type,$orig,$def eq '+' ? undef : $def,
+ $dest,0,1];
+ }
+ else {
+ my ($mand, $type, $dest) =
+ $spec =~ /^([=:])([ionfs])([@%])?(\{(\d+)?(,)?(\d+)?\})?$/;
+ return (undef, "Cannot repeat while bundling: \"$opt\"\n")
+ if $bundling && defined($4);
+ my ($mi, $cm, $ma) = ($5, $6, $7);
+ return (undef, "{0} is useless in option spec: \"$opt\"\n")
+ if defined($mi) && !$mi && !defined($ma) && !defined($cm);
+
+ $type = 'i' if $type eq 'n';
+ $dest ||= '$';
+ $dest = $dest eq '@' ? CTL_DEST_ARRAY
+ : $dest eq '%' ? CTL_DEST_HASH : CTL_DEST_SCALAR;
+ # Default minargs to 1/0 depending on mand status.
+ $mi = $mand eq '=' ? 1 : 0 unless defined $mi;
+ # Adjust mand status according to minargs.
+ $mand = $mi ? '=' : ':';
+ # Adjust maxargs.
+ $ma = $mi ? $mi : 1 unless defined $ma || defined $cm;
+ return (undef, "Max must be greater than zero in option spec: \"$opt\"\n")
+ if defined($ma) && !$ma;
+ return (undef, "Max less than min in option spec: \"$opt\"\n")
+ if defined($ma) && $ma < $mi;
+
+ # Fields are hard-wired here.
+ $entry = [$type,$orig,undef,$dest,$mi,$ma||-1];
+ }
+
+ # Process all names. First is canonical, the rest are aliases.
+ my $dups = '';
+ foreach ( @names ) {
+
+ $_ = lc ($_)
+ if $ignorecase > (($bundling && length($_) == 1) ? 1 : 0);
+
+ if ( exists $opctl->{$_} ) {
+ $dups .= "Duplicate specification \"$opt\" for option \"$_\"\n";
+ }
+
+ if ( $spec eq '!' ) {
+ $opctl->{"no$_"} = $entry;
+ $opctl->{"no-$_"} = $entry;
+ $opctl->{$_} = [@$entry];
+ $opctl->{$_}->[CTL_TYPE] = '';
+ }
+ else {
+ $opctl->{$_} = $entry;
+ }
+ }
+
+ if ( $dups && $^W ) {
+ foreach ( split(/\n+/, $dups) ) {
+ warn($_."\n");
+ }
+ }
+ ($names[0], $orig);
+}
+
+# Option lookup.
+sub FindOption ($$$$$) {
+
+ # returns (1, $opt, $ctl, $arg, $key) if okay,
+ # returns (1, undef) if option in error,
+ # returns (0) otherwise.
+
+ my ($argv, $prefix, $argend, $opt, $opctl) = @_;
+
+ print STDERR ("=> find \"$opt\"\n") if $debug;
+
+ return (0) unless $opt =~ /^$prefix(.*)$/s;
+ return (0) if $opt eq "-" && !defined $opctl->{''};
+
+ $opt = $+;
+ my $starter = $1;
+
+ print STDERR ("=> split \"$starter\"+\"$opt\"\n") if $debug;
+
+ my $optarg; # value supplied with --opt=value
+ my $rest; # remainder from unbundling
+
+ # If it is a long option, it may include the value.
+ # With getopt_compat, only if not bundling.
+ if ( ($starter=~/^$longprefix$/
+ || ($getopt_compat && ($bundling == 0 || $bundling == 2)))
+ && $opt =~ /^([^=]+)=(.*)$/s ) {
+ $opt = $1;
+ $optarg = $2;
+ print STDERR ("=> option \"", $opt,
+ "\", optarg = \"$optarg\"\n") if $debug;
+ }
+
+ #### Look it up ###
+
+ my $tryopt = $opt; # option to try
+
+ if ( $bundling && $starter eq '-' ) {
+
+ # To try overrides, obey case ignore.
+ $tryopt = $ignorecase ? lc($opt) : $opt;
+
+ # If bundling == 2, long options can override bundles.
+ if ( $bundling == 2 && length($tryopt) > 1
+ && defined ($opctl->{$tryopt}) ) {
+ print STDERR ("=> $starter$tryopt overrides unbundling\n")
+ if $debug;
+ }
+ else {
+ $tryopt = $opt;
+ # Unbundle single letter option.
+ $rest = length ($tryopt) > 0 ? substr ($tryopt, 1) : '';
+ $tryopt = substr ($tryopt, 0, 1);
+ $tryopt = lc ($tryopt) if $ignorecase > 1;
+ print STDERR ("=> $starter$tryopt unbundled from ",
+ "$starter$tryopt$rest\n") if $debug;
+ $rest = undef unless $rest ne '';
+ }
+ }
+
+ # Try auto-abbreviation.
+ elsif ( $autoabbrev && $opt ne "" ) {
+ # Sort the possible long option names.
+ my @names = sort(keys (%$opctl));
+ # Downcase if allowed.
+ $opt = lc ($opt) if $ignorecase;
+ $tryopt = $opt;
+ # Turn option name into pattern.
+ my $pat = quotemeta ($opt);
+ # Look up in option names.
+ my @hits = grep (/^$pat/, @names);
+ print STDERR ("=> ", scalar(@hits), " hits (@hits) with \"$pat\" ",
+ "out of ", scalar(@names), "\n") if $debug;
+
+ # Check for ambiguous results.
+ unless ( (@hits <= 1) || (grep ($_ eq $opt, @hits) == 1) ) {
+ # See if all matches are for the same option.
+ my %hit;
+ foreach ( @hits ) {
+ my $hit = $_;
+ $hit = $opctl->{$hit}->[CTL_CNAME]
+ if defined $opctl->{$hit}->[CTL_CNAME];
+ $hit{$hit} = 1;
+ }
+ # Remove auto-supplied options (version, help).
+ if ( keys(%hit) == 2 ) {
+ if ( $auto_version && exists($hit{version}) ) {
+ delete $hit{version};
+ }
+ elsif ( $auto_help && exists($hit{help}) ) {
+ delete $hit{help};
+ }
+ }
+ # Now see if it really is ambiguous.
+ unless ( keys(%hit) == 1 ) {
+ return (0) if $passthrough;
+ warn ("Option ", $opt, " is ambiguous (",
+ join(", ", @hits), ")\n");
+ $error++;
+ return (1, undef);
+ }
+ @hits = keys(%hit);
+ }
+
+ # Complete the option name, if appropriate.
+ if ( @hits == 1 && $hits[0] ne $opt ) {
+ $tryopt = $hits[0];
+ $tryopt = lc ($tryopt) if $ignorecase;
+ print STDERR ("=> option \"$opt\" -> \"$tryopt\"\n")
+ if $debug;
+ }
+ }
+
+ # Map to all lowercase if ignoring case.
+ elsif ( $ignorecase ) {
+ $tryopt = lc ($opt);
+ }
+
+ # Check validity by fetching the info.
+ my $ctl = $opctl->{$tryopt};
+ unless ( defined $ctl ) {
+ return (0) if $passthrough;
+ # Pretend one char when bundling.
+ if ( $bundling == 1 && length($starter) == 1 ) {
+ $opt = substr($opt,0,1);
+ unshift (@$argv, $starter.$rest) if defined $rest;
+ }
+ if ( $opt eq "" ) {
+ warn ("Missing option after ", $starter, "\n");
+ }
+ else {
+ warn ("Unknown option: ", $opt, "\n");
+ }
+ $error++;
+ return (1, undef);
+ }
+ # Apparently valid.
+ $opt = $tryopt;
+ print STDERR ("=> found ", OptCtl($ctl),
+ " for \"", $opt, "\"\n") if $debug;
+
+ #### Determine argument status ####
+
+ # If it is an option w/o argument, we're almost finished with it.
+ my $type = $ctl->[CTL_TYPE];
+ my $arg;
+
+ if ( $type eq '' || $type eq '!' || $type eq '+' ) {
+ if ( defined $optarg ) {
+ return (0) if $passthrough;
+ warn ("Option ", $opt, " does not take an argument\n");
+ $error++;
+ undef $opt;
+ }
+ elsif ( $type eq '' || $type eq '+' ) {
+ # Supply explicit value.
+ $arg = 1;
+ }
+ else {
+ $opt =~ s/^no-?//i; # strip NO prefix
+ $arg = 0; # supply explicit value
+ }
+ unshift (@$argv, $starter.$rest) if defined $rest;
+ return (1, $opt, $ctl, $arg);
+ }
+
+ # Get mandatory status and type info.
+ my $mand = $ctl->[CTL_AMIN];
+
+ # Check if there is an option argument available.
+ if ( $gnu_compat && defined $optarg && $optarg eq '' ) {
+ return (1, $opt, $ctl, $type eq 's' ? '' : 0) ;#unless $mand;
+ $optarg = 0 unless $type eq 's';
+ }
+
+ # Check if there is an option argument available.
+ if ( defined $optarg
+ ? ($optarg eq '')
+ : !(defined $rest || @$argv > 0) ) {
+ # Complain if this option needs an argument.
+# if ( $mand && !($type eq 's' ? defined($optarg) : 0) ) {
+ if ( $mand ) {
+ return (0) if $passthrough;
+ warn ("Option ", $opt, " requires an argument\n");
+ $error++;
+ return (1, undef);
+ }
+ if ( $type eq 'I' ) {
+ # Fake incremental type.
+ my @c = @$ctl;
+ $c[CTL_TYPE] = '+';
+ return (1, $opt, \@c, 1);
+ }
+ return (1, $opt, $ctl,
+ defined($ctl->[CTL_DEFAULT]) ? $ctl->[CTL_DEFAULT] :
+ $type eq 's' ? '' : 0);
+ }
+
+ # Get (possibly optional) argument.
+ $arg = (defined $rest ? $rest
+ : (defined $optarg ? $optarg : shift (@$argv)));
+
+ # Get key if this is a "name=value" pair for a hash option.
+ my $key;
+ if ($ctl->[CTL_DEST] == CTL_DEST_HASH && defined $arg) {
+ ($key, $arg) = ($arg =~ /^([^=]*)=(.*)$/s) ? ($1, $2)
+ : ($arg, defined($ctl->[CTL_DEFAULT]) ? $ctl->[CTL_DEFAULT] :
+ ($mand ? undef : ($type eq 's' ? "" : 1)));
+ if (! defined $arg) {
+ warn ("Option $opt, key \"$key\", requires a value\n");
+ $error++;
+ # Push back.
+ unshift (@$argv, $starter.$rest) if defined $rest;
+ return (1, undef);
+ }
+ }
+
+ #### Check if the argument is valid for this option ####
+
+ my $key_valid = $ctl->[CTL_DEST] == CTL_DEST_HASH ? "[^=]+=" : "";
+
+ if ( $type eq 's' ) { # string
+ # A mandatory string takes anything.
+ return (1, $opt, $ctl, $arg, $key) if $mand;
+
+ # Same for optional string as a hash value
+ return (1, $opt, $ctl, $arg, $key)
+ if $ctl->[CTL_DEST] == CTL_DEST_HASH;
+
+ # An optional string takes almost anything.
+ return (1, $opt, $ctl, $arg, $key)
+ if defined $optarg || defined $rest;
+ return (1, $opt, $ctl, $arg, $key) if $arg eq "-"; # ??
+
+ # Check for option or option list terminator.
+ if ($arg eq $argend ||
+ $arg =~ /^$prefix.+/) {
+ # Push back.
+ unshift (@$argv, $arg);
+ # Supply empty value.
+ $arg = '';
+ }
+ }
+
+ elsif ( $type eq 'i' # numeric/integer
+ || $type eq 'I' # numeric/integer w/ incr default
+ || $type eq 'o' ) { # dec/oct/hex/bin value
+
+ my $o_valid = $type eq 'o' ? PAT_XINT : PAT_INT;
+
+ if ( $bundling && defined $rest
+ && $rest =~ /^($key_valid)($o_valid)(.*)$/si ) {
+ ($key, $arg, $rest) = ($1, $2, $+);
+ chop($key) if $key;
+ $arg = ($type eq 'o' && $arg =~ /^0/) ? oct($arg) : 0+$arg;
+ unshift (@$argv, $starter.$rest) if defined $rest && $rest ne '';
+ }
+ elsif ( $arg =~ /^$o_valid$/si ) {
+ $arg =~ tr/_//d;
+ $arg = ($type eq 'o' && $arg =~ /^0/) ? oct($arg) : 0+$arg;
+ }
+ else {
+ if ( defined $optarg || $mand ) {
+ if ( $passthrough ) {
+ unshift (@$argv, defined $rest ? $starter.$rest : $arg)
+ unless defined $optarg;
+ return (0);
+ }
+ warn ("Value \"", $arg, "\" invalid for option ",
+ $opt, " (",
+ $type eq 'o' ? "extended " : '',
+ "number expected)\n");
+ $error++;
+ # Push back.
+ unshift (@$argv, $starter.$rest) if defined $rest;
+ return (1, undef);
+ }
+ else {
+ # Push back.
+ unshift (@$argv, defined $rest ? $starter.$rest : $arg);
+ if ( $type eq 'I' ) {
+ # Fake incremental type.
+ my @c = @$ctl;
+ $c[CTL_TYPE] = '+';
+ return (1, $opt, \@c, 1);
+ }
+ # Supply default value.
+ $arg = defined($ctl->[CTL_DEFAULT]) ? $ctl->[CTL_DEFAULT] : 0;
+ }
+ }
+ }
+
+ elsif ( $type eq 'f' ) { # real number, int is also ok
+ # We require at least one digit before a point or 'e',
+ # and at least one digit following the point and 'e'.
+ # [-]NN[.NN][eNN]
+ my $o_valid = PAT_FLOAT;
+ if ( $bundling && defined $rest &&
+ $rest =~ /^($key_valid)($o_valid)(.*)$/s ) {
+ $arg =~ tr/_//d;
+ ($key, $arg, $rest) = ($1, $2, $+);
+ chop($key) if $key;
+ unshift (@$argv, $starter.$rest) if defined $rest && $rest ne '';
+ }
+ elsif ( $arg =~ /^$o_valid$/ ) {
+ $arg =~ tr/_//d;
+ }
+ else {
+ if ( defined $optarg || $mand ) {
+ if ( $passthrough ) {
+ unshift (@$argv, defined $rest ? $starter.$rest : $arg)
+ unless defined $optarg;
+ return (0);
+ }
+ warn ("Value \"", $arg, "\" invalid for option ",
+ $opt, " (real number expected)\n");
+ $error++;
+ # Push back.
+ unshift (@$argv, $starter.$rest) if defined $rest;
+ return (1, undef);
+ }
+ else {
+ # Push back.
+ unshift (@$argv, defined $rest ? $starter.$rest : $arg);
+ # Supply default value.
+ $arg = 0.0;
+ }
+ }
+ }
+ else {
+ die("Getopt::Long internal error (Can't happen)\n");
+ }
+ return (1, $opt, $ctl, $arg, $key);
+}
+
+sub ValidValue ($$$$$) {
+ my ($ctl, $arg, $mand, $argend, $prefix) = @_;
+
+ if ( $ctl->[CTL_DEST] == CTL_DEST_HASH ) {
+ return 0 unless $arg =~ /[^=]+=(.*)/;
+ $arg = $1;
+ }
+
+ my $type = $ctl->[CTL_TYPE];
+
+ if ( $type eq 's' ) { # string
+ # A mandatory string takes anything.
+ return (1) if $mand;
+
+ return (1) if $arg eq "-";
+
+ # Check for option or option list terminator.
+ return 0 if $arg eq $argend || $arg =~ /^$prefix.+/;
+ return 1;
+ }
+
+ elsif ( $type eq 'i' # numeric/integer
+ || $type eq 'I' # numeric/integer w/ incr default
+ || $type eq 'o' ) { # dec/oct/hex/bin value
+
+ my $o_valid = $type eq 'o' ? PAT_XINT : PAT_INT;
+ return $arg =~ /^$o_valid$/si;
+ }
+
+ elsif ( $type eq 'f' ) { # real number, int is also ok
+ # We require at least one digit before a point or 'e',
+ # and at least one digit following the point and 'e'.
+ # [-]NN[.NN][eNN]
+ my $o_valid = PAT_FLOAT;
+ return $arg =~ /^$o_valid$/;
+ }
+ die("ValidValue: Cannot happen\n");
+}
+
+# Getopt::Long Configuration.
+sub Configure (@) {
+ my (@options) = @_;
+
+ my $prevconfig =
+ [ $error, $debug, $major_version, $minor_version,
+ $autoabbrev, $getopt_compat, $ignorecase, $bundling, $order,
+ $gnu_compat, $passthrough, $genprefix, $auto_version, $auto_help,
+ $longprefix ];
+
+ if ( ref($options[0]) eq 'ARRAY' ) {
+ ( $error, $debug, $major_version, $minor_version,
+ $autoabbrev, $getopt_compat, $ignorecase, $bundling, $order,
+ $gnu_compat, $passthrough, $genprefix, $auto_version, $auto_help,
+ $longprefix ) = @{shift(@options)};
+ }
+
+ my $opt;
+ foreach $opt ( @options ) {
+ my $try = lc ($opt);
+ my $action = 1;
+ if ( $try =~ /^no_?(.*)$/s ) {
+ $action = 0;
+ $try = $+;
+ }
+ if ( ($try eq 'default' or $try eq 'defaults') && $action ) {
+ ConfigDefaults ();
+ }
+ elsif ( ($try eq 'posix_default' or $try eq 'posix_defaults') ) {
+ local $ENV{POSIXLY_CORRECT};
+ $ENV{POSIXLY_CORRECT} = 1 if $action;
+ ConfigDefaults ();
+ }
+ elsif ( $try eq 'auto_abbrev' or $try eq 'autoabbrev' ) {
+ $autoabbrev = $action;
+ }
+ elsif ( $try eq 'getopt_compat' ) {
+ $getopt_compat = $action;
+ $genprefix = $action ? "(--|-|\\+)" : "(--|-)";
+ }
+ elsif ( $try eq 'gnu_getopt' ) {
+ if ( $action ) {
+ $gnu_compat = 1;
+ $bundling = 1;
+ $getopt_compat = 0;
+ $genprefix = "(--|-)";
+ $order = $PERMUTE;
+ }
+ }
+ elsif ( $try eq 'gnu_compat' ) {
+ $gnu_compat = $action;
+ }
+ elsif ( $try =~ /^(auto_?)?version$/ ) {
+ $auto_version = $action;
+ }
+ elsif ( $try =~ /^(auto_?)?help$/ ) {
+ $auto_help = $action;
+ }
+ elsif ( $try eq 'ignorecase' or $try eq 'ignore_case' ) {
+ $ignorecase = $action;
+ }
+ elsif ( $try eq 'ignorecase_always' or $try eq 'ignore_case_always' ) {
+ $ignorecase = $action ? 2 : 0;
+ }
+ elsif ( $try eq 'bundling' ) {
+ $bundling = $action;
+ }
+ elsif ( $try eq 'bundling_override' ) {
+ $bundling = $action ? 2 : 0;
+ }
+ elsif ( $try eq 'require_order' ) {
+ $order = $action ? $REQUIRE_ORDER : $PERMUTE;
+ }
+ elsif ( $try eq 'permute' ) {
+ $order = $action ? $PERMUTE : $REQUIRE_ORDER;
+ }
+ elsif ( $try eq 'pass_through' or $try eq 'passthrough' ) {
+ $passthrough = $action;
+ }
+ elsif ( $try =~ /^prefix=(.+)$/ && $action ) {
+ $genprefix = $1;
+ # Turn into regexp. Needs to be parenthesized!
+ $genprefix = "(" . quotemeta($genprefix) . ")";
+ eval { '' =~ /$genprefix/; };
+ die("Getopt::Long: invalid pattern \"$genprefix\"") if $@;
+ }
+ elsif ( $try =~ /^prefix_pattern=(.+)$/ && $action ) {
+ $genprefix = $1;
+ # Parenthesize if needed.
+ $genprefix = "(" . $genprefix . ")"
+ unless $genprefix =~ /^\(.*\)$/;
+ eval { '' =~ m"$genprefix"; };
+ die("Getopt::Long: invalid pattern \"$genprefix\"") if $@;
+ }
+ elsif ( $try =~ /^long_prefix_pattern=(.+)$/ && $action ) {
+ $longprefix = $1;
+ # Parenthesize if needed.
+ $longprefix = "(" . $longprefix . ")"
+ unless $longprefix =~ /^\(.*\)$/;
+ eval { '' =~ m"$longprefix"; };
+ die("Getopt::Long: invalid long prefix pattern \"$longprefix\"") if $@;
+ }
+ elsif ( $try eq 'debug' ) {
+ $debug = $action;
+ }
+ else {
+ die("Getopt::Long: unknown config parameter \"$opt\"")
+ }
+ }
+ $prevconfig;
+}
+
+# Deprecated name.
+sub config (@) {
+ Configure (@_);
+}
+
+# Issue a standard message for --version.
+#
+# The arguments are mostly the same as for Pod::Usage::pod2usage:
+#
+# - a number (exit value)
+# - a string (lead in message)
+# - a hash with options. See Pod::Usage for details.
+#
+sub VersionMessage(@) {
+ # Massage args.
+ my $pa = setup_pa_args("version", @_);
+
+ my $v = $main::VERSION;
+ my $fh = $pa->{-output} ||
+ ($pa->{-exitval} eq "NOEXIT" || $pa->{-exitval} < 2) ? \*STDOUT : \*STDERR;
+
+ print $fh (defined($pa->{-message}) ? $pa->{-message} : (),
+ $0, defined $v ? " version $v" : (),
+ "\n",
+ "(", __PACKAGE__, "::", "GetOptions",
+ " version ",
+ defined($Getopt::Long::VERSION_STRING)
+ ? $Getopt::Long::VERSION_STRING : $VERSION, ";",
+ " Perl version ",
+ $] >= 5.006 ? sprintf("%vd", $^V) : $],
+ ")\n");
+ exit($pa->{-exitval}) unless $pa->{-exitval} eq "NOEXIT";
+}
+
+# Issue a standard message for --help.
+#
+# The arguments are the same as for Pod::Usage::pod2usage:
+#
+# - a number (exit value)
+# - a string (lead in message)
+# - a hash with options. See Pod::Usage for details.
+#
+sub HelpMessage(@) {
+ eval {
+ require Pod::Usage;
+ import Pod::Usage;
+ 1;
+ } || die("Cannot provide help: cannot load Pod::Usage\n");
+
+ # Note that pod2usage will issue a warning if -exitval => NOEXIT.
+ pod2usage(setup_pa_args("help", @_));
+
+}
+
+# Helper routine to set up a normalized hash ref to be used as
+# argument to pod2usage.
+sub setup_pa_args($@) {
+ my $tag = shift; # who's calling
+
+ # If called by direct binding to an option, it will get the option
+ # name and value as arguments. Remove these, if so.
+ @_ = () if @_ == 2 && $_[0] eq $tag;
+
+ my $pa;
+ if ( @_ > 1 ) {
+ $pa = { @_ };
+ }
+ else {
+ $pa = shift || {};
+ }
+
+ # At this point, $pa can be a number (exit value), string
+ # (message) or hash with options.
+
+ if ( UNIVERSAL::isa($pa, 'HASH') ) {
+ # Get rid of -msg vs. -message ambiguity.
+ $pa->{-message} = $pa->{-msg};
+ delete($pa->{-msg});
+ }
+ elsif ( $pa =~ /^-?\d+$/ ) {
+ $pa = { -exitval => $pa };
+ }
+ else {
+ $pa = { -message => $pa };
+ }
+
+ # These are _our_ defaults.
+ $pa->{-verbose} = 0 unless exists($pa->{-verbose});
+ $pa->{-exitval} = 0 unless exists($pa->{-exitval});
+ $pa;
+}
+
+# Sneak way to know what version the user requested.
+sub VERSION {
+ $requested_version = $_[1];
+ shift->SUPER::VERSION(@_);
+}
+
+package Getopt::Long::CallBack;
+
+sub new {
+ my ($pkg, %atts) = @_;
+ bless { %atts }, $pkg;
+}
+
+sub name {
+ my $self = shift;
+ ''.$self->{name};
+}
+
+use overload
+ # Treat this object as an ordinary string for legacy API.
+ '""' => \&name,
+ fallback => 1;
+
+1;
+
+################ Documentation ################
+
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