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# -*- perl -*-
#
# Copyright (C) Heinz-Josef Claes (2002)
# hjclaes@web.de
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
push @VERSION, '$Id: checkParam.pl,v 1.12 2002/05/20 06:45:34 hjc Exp $ ';
use strict;
require 'checkObjPar.pl';
######################################################################
# Speicherung s"amtlicher Informationen "uber *einen* Parameter
package Option;
sub new
{
my ($class) = shift;
my ($self) = {};
# Defaultwerte f"ur Parameter setzen
my (%params) = ('-option' => undef,
'-only_if' => undef,
'-alias' => undef,
'-default' => undef,
'-param' => 'no', # wird gesetzt, wenn '-default'
'-must_be' => 'no',
'-comment' => undef, # wird als Fehlermeld. ausgegeben
# bei Fehler -only_if und -pattern
'-pattern' => undef
);
&::checkObjectParams(\%params, \@_, 'Option::new', ['-option']);
$params{'-param'} = 'yes' if (defined($params{'-default'}));
$params{'-used'} = 'no'; # wird in CheckParam::check dann "uberpr"uft
$self->{'param'} = \%params; # Parameter an Objekt binden
bless($self, $class);
}
sub get
{
my ($self) = shift;
my ($par) = shift;
return $self->{'param'}{$par};
}
sub set
{
my ($self) = shift;
my ($par) = shift;
my ($val) = shift;
$self->{'param'}{$par} = $val;
}
######################################################################
package CheckParam;
sub new
{
my ($class) = shift;
my ($self) = {};
# Defaultwerte f"ur Parameter setzen
my (%params) = ('-list' => [],
'-allowLists' => 'no');
&::checkObjectParams(\%params, \@_, 'CheckParam::new', []);
$self->{'paramList'} = \%params; # Parameter an Objekt binden
# Hash mit '-option' und '-alias' f"ur schnellen Zugriff auf Option
my (%option, $o);
foreach $o (@{$self->{'paramList'}{'-list'}})
{
my ($opt) = $o->get('-option');
$option{$opt} = $o;
if ($opt = $o->get('-alias'))
{
$option{$opt} = $o;
}
}
$self->{'optionsPointer'} = \%option;
bless($self, $class);
}
sub getList
{
my ($self) = shift;
my ($par) = shift;
return $self->{'paramList'}{$par};
}
sub check
{
my ($self) = shift;
# Defaultwerte f"ur Parameter setzen
my (%params) = ('-argv' => [[]],
'-help' => ['<noHelp>']);
my (%hash) = @_; # Parameter in Hash kopieren
my ($k);
foreach $k (keys %params)
{
if (defined($hash{$k}))
{
$params{$k} = $hash{$k}; # Wert "uberschreiben
delete $hash{$k};
}
else
{
$params{$k} = $params{$k}[0]; # Defaultwert einsetzen
}
}
my ($Help) = $params{'-help'};
die "undefined params <", join('><', keys %hash),
"> in CheckParam::check\n"
if (keys %hash > 0);
# Die gesetzten Optionen erst einmal auf Parameter analysieren
my ($arg, @parList, $next, $aktOpt, %optWithPar, %optWithoutPar, $i);
my ($op) = $self->{'optionsPointer'};
$next = 'unknown';
my ($i);
for ($i = 0 ; $i < @{$params{'-argv'}} ; $i++)
{
$arg = $params{'-argv'}[$i];
if ($next eq 'list') # Listenparameter
{
push @parList, $arg;
$next = 'unknown';
next;
}
if ($arg eq '--') # n"achster Parameter ist 'list' - Parameter
{
$next = 'list';
next;
}
if (defined($op->{$arg})) # bekannte Option
{
my ($o) = $op->{$arg};
$arg = $o->get('-option');
$o->set('-used' => 'yes');
if ($o->get('-param') eq 'yes')
{
$optWithPar{$arg}{'object'} = $o;
die "missing param for option <$arg>\n$Help"
if (++$i >= @{$params{'-argv'}});
$optWithPar{$arg}{'value'} = $params{'-argv'}[$i];
next;
}
else # keine Parameter an Option
{
$optWithoutPar{$arg} = $o;
next;
}
}
else # Listenparameter
{
die "unknown parameter <$arg>\n$Help" if ($arg =~ /^-/);
push @parList, $arg;
next;
}
}
# %optWithPar enth"alt jetzt die in ARGV gesetzten Optionen mit Parameter
# $optWithPar{option}{'object'} = Zeiger auf vorgegeb. Objekt f"ur d. Opt.
# $optWithPar{option}{'value'} = Wert der Option in ARGV
# Ausgabe der gefundenen Optionen
if (0)
{
my ($k);
print "Ausgabe der gefundenen Optionen\n";
print "\tOptionen mit Parameter:\n";
foreach $k (sort keys %optWithPar)
{
print "\t\t$k\t", $optWithPar{$k}{'value'}, "\n";
}
print "\tOptionen ohne Parameter:\n";
foreach $k (sort keys %optWithoutPar)
{
print "\t\t$k\n";
}
print "\tList-Parameter:\n";
foreach $k (sort @parList)
{
print "\t\t$k\n";
}
}
# berprfen, ob List-Parameter erlaubt sind
die "detected the following not allowed list parameters:\n\t<",
join('> <', @parList), ">\n$Help"
if (@parList > 0 and $self->{'paramList'}{'-allowLists'} eq 'no');
# Die Defaultwerte einsetzen
my ($optIter) = IterOpt_CheckParam->new($self);
my ($o);
while ($o = $optIter->next())
{
next unless (defined $o->get('-default')); # kein default vorhanden
my ($opt) = $o->get('-option');
next if ($optWithPar{$opt}); # schon in ARGV gesetzt
$optWithPar{$opt}{'object'} = $o; # auf Default setzen
$optWithPar{$opt}{'value'} = $o->get('-default');
}
# '-must_be' "uberpr"ufen
while ($o = $optIter->next())
{
next if ($o->get('-must_be') eq 'no'); # mu"s nicht sein
my ($opt) = $o->get('-option');
if ($o->get('-param') eq 'no') # kein Parameter
{
die "missing option <$opt>\n$Help"
unless ($optWithoutPar{$opt});
}
else # hat Parameter
{
die "missing option <$opt param>\n$Help"
unless ($optWithPar{$opt});
}
}
# '-pattern' "uberpr"ufen
my ($k);
foreach $k (keys %optWithPar)
{
my ($o) = $optWithPar{$k}{'object'};
next unless ($o->get('-pattern')); # hier gibt's keine Beschr"ankungen
my ($pat) = $o->get('-pattern');
unless ($optWithPar{$k}{'value'} =~ /$pat/)
{
if ($o->get('-comment'))
{
die $o->get('-comment');
}
else
{
die "<", $optWithPar{$k}{'value'},
"> is not a valid value for option <$k>\nallowed pattern is ",
"<$pat>\n$Help";
}
}
}
# '-only_if' "uberpr"ufen
while ($o = $optIter->next())
{
next unless ($o->get('-only_if')); # keine Einschr"ankungen
next if ($o->get('-used') eq 'no'); # Parameter wird nicht verwendet
my ($only_if) = $o->get('-only_if');
# zuerst alle gesetzten Parameter durch '1' ersetzen
my ($k);
foreach $k (keys %optWithoutPar)
{
my ($o) = $optWithoutPar{$k};
my ($opt) = $o->get('-option');
my ($alias) = $o->get('-alias');
$only_if =~ s/\[$opt\]/1/g;
$only_if =~ s/\[$alias\]/1/g;
}
foreach $k (keys %optWithPar)
{
my ($o) = $optWithPar{$k}{'object'};
my ($opt) = $o->get('-option');
my ($alias) = $o->get('-alias');
$only_if =~ s/\[$opt\]/1/g;
$only_if =~ s/\[$alias\]/1/g;
}
$only_if =~ s/\[(.*?)\]/0/g; # verbliebene durch 0 ersetzen
my $only_print = $only_if;
$only_if =~ s/or/\|/g; # durch bin"are Operatoren ersetzen,
$only_if =~ s/and/&/g; # dann funktioniert not (!)
$only_if =~ s/not/!/g; # statt '!' kann auch 'not' verw. werden
$only_if =~ s/exor/^/g; # statt '^' kann auch 'exor' verw. werd.
unless (eval "($only_if)")
{
if ($o->get('-comment'))
{
die $o->get('-comment');
}
else
{
die "illegal combination in use of option <",
$o->get('-option'), ">, rule = (", $o->get('-only_if'),
")\n\t\t\t\t\t\t <<$only_print>>\n$Help";
}
}
nichtTesten:;
}
if (0)
{
my ($k);
print "Ausgabe der gefundenen Optionen\n";
print "\tOptionen mit Parameter:\n";
foreach $k (sort keys %optWithPar)
{
print "\t\t$k\t", $optWithPar{$k}{'value'}, "\n";
}
print "\tOptionen ohne Parameter:\n";
foreach $k (sort keys %optWithoutPar)
{
print "\t\t$k\n";
}
print "\tList-Parameter:\n";
foreach $k (sort @parList)
{
print "\t\t$k\n";
}
}
# Ergebnisse merken
$self->{'Erg'}{'withPar'} = \%optWithPar;
$self->{'Erg'}{'withoutPar'} = \%optWithoutPar;
$self->{'Erg'}{'listPar'} = \@parList;
}
sub getOptWithPar
{
my ($self) = shift;
my ($par) = shift;
die "option <$par> does not exist"
unless defined $self->{'optionsPointer'}{$par};
my ($opt) = $self->{'optionsPointer'}{$par}->get('-option');
return undef unless ($self->{'Erg'}{'withPar'}{$opt}); # is nix
return $self->{'Erg'}{'withPar'}{$opt}{'value'};
}
sub getOptWithoutPar
{
my ($self) = shift;
my ($par) = shift;
die "option <$par> does not exist"
unless defined $self->{'optionsPointer'}{$par};
my ($opt) = $self->{'optionsPointer'}{$par}->get('-option');
return $self->{'Erg'}{'withoutPar'}{$opt};
}
sub getListPar
{
my $self = shift;
return @{$self->{'Erg'}{'listPar'}};
}
sub getNoListPar
{
my $self = shift;
return scalar(@{$self->{'Erg'}{'listPar'}});
}
######################################################################
# Iterator f"ur die List-Parameter
package Iter_ParList;
sub new
{
my ($class) = shift;
my ($CheckPar) = shift;
my ($self) = {};
$self->{'list'} = $CheckPar->{'Erg'}{'listPar'};
$self->{'index'} = -1;
bless($self, $class);
}
sub next
{
my ($self) = shift;
my ($l) = $self->{'list'};
++$self->{'index'};
if ($self->{'index'} >= @$l) # Ende erreicht
{
$self->{'index'} = -1;
return undef;
}
else
{
return $$l[$self->{'index'}];
}
}
######################################################################
# Iterator f"ur CheckParam, um s"amtliche gespeicherten Option zu erhalten
package IterOpt_CheckParam;
sub new
{
my ($class) = shift;
my ($CheckPar) = shift;
my ($self) = {};
$self->{'list'} = $CheckPar->getList('-list');
$self->{'index'} = -1;
bless($self, $class);
}
sub next
{
my ($self) = shift;
my ($l) = $self->{'list'};
++$self->{'index'};
if ($self->{'index'} >= @$l) # Ende erreicht
{
$self->{'index'} = -1;
return undef;
}
else
{
return $$l[$self->{'index'}];
}
}
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