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[wine/gsoc_dplay.git] / tools / winapi / options.pm

#
# Copyright 1999, 2000, 2001 Patrik Stridvall
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
#

package options;

use strict;

use vars qw($VERSION @ISA @EXPORT @EXPORT_OK);
require Exporter;

@ISA = qw(Exporter);
@EXPORT = qw();
@EXPORT_OK = qw($options parse_comma_list parse_value);

use vars qw($options);

use output qw($output);

sub parse_comma_list($$) {
    my $prefix = shift;
    my $value = shift;

    if(defined($prefix) && $prefix eq "no") {
        return { active => 0, filter => 0, hash => {} };
    } elsif(defined($value)) {
        my %names;
        for my $name (split /,/, $value) {
            $names{$name} = 1;
        }
        return { active => 1, filter => 1, hash => \%names };
    } else {
        return { active => 1, filter => 0, hash => {} };
    }
}

sub parse_value($$) {
    my $prefix = shift;
    my $value = shift;

    return $value;
}

package _options;

use strict;

use output qw($output);

sub options_set($$);

sub new($$$$) {
    my $proto = shift;
    my $class = ref($proto) || $proto;
    my $self  = {};
    bless ($self, $class);

    my $options_long = \%{$self->{_OPTIONS_LONG}};
    my $options_short = \%{$self->{_OPTIONS_SHORT}};
    my $options_usage = \${$self->{_OPTIONS_USAGE}};

    my $refoptions_long = shift;
    my $refoptions_short = shift;
    $$options_usage = shift;

    %$options_long = %{$refoptions_long};
    %$options_short = %{$refoptions_short};

    $self->options_set("default");

    my $arguments = \@{$self->{_ARGUMENTS}};
    @$arguments = ();

    my $end_of_options = 0;
    while(defined($_ = shift @ARGV)) {
        if(/^--$/) {
            $end_of_options = 1;
            next;
        } elsif($end_of_options) {
            # Nothing
        } elsif(/^--(all|none)$/) {
            $self->options_set("$1");
            next;
        } elsif(/^-([^=]*)(=(.*))?$/) {
            my $name;
            my $value;
            if(defined($2)) {
                $name = $1;
                $value = $3;
            } else {
                $name = $1;
            }

            if($name =~ /^([^-].*)$/) {
                $name = $$options_short{$1};
            } else {
                $name =~ s/^-(.*)$/$1/;
            }

            my $prefix;
            if(defined($name) && $name =~ /^no-(.*)$/) {
                $name = $1;
                $prefix = "no";
                if(defined($value)) {
                    $output->write("options with prefix 'no' can't take parameters\n");

                    return undef;
                }
            }

            my $option;
            if(defined($name)) {
                $option = $$options_long{$name};
            }

            if(defined($option)) {
                my $key = $$option{key};
                my $parser = $$option{parser};
                my $refvalue = \${$self->{$key}};
                my @parents = ();

                if(defined($$option{parent})) {
                    if(ref($$option{parent}) eq "ARRAY") {
                        @parents = @{$$option{parent}};
                    } else {
                        @parents = $$option{parent};
                    }
                }

                if(defined($parser)) {
                    if(!defined($value)) {
                        $value = shift @ARGV;
                    }
                    $$refvalue = &$parser($prefix,$value);
                } else {
                    if(defined($value)) {
                        $$refvalue = $value;
                    } elsif(!defined($prefix)) {
                        $$refvalue = 1;
                    } else {
                        $$refvalue = 0;
                    }
                }

                if((ref($$refvalue) eq "HASH" && $$refvalue->{active}) || $$refvalue) {
                    while($#parents >= 0) {
                        my @old_parents = @parents;
                        @parents = ();
                        foreach my $parent (@old_parents) {
                            my $parentkey = $$options_long{$parent}{key};
                            my $refparentvalue = \${$self->{$parentkey}};

                            $$refparentvalue = 1;

                            if(defined($$options_long{$parent}{parent})) {
                                if(ref($$options_long{$parent}{parent}) eq "ARRAY") {
                                    push @parents, @{$$options_long{$parent}{parent}};
                                } else {
                                    push @parents, $$options_long{$parent}{parent};
                                }
                            }
                        }
                    }
                }
                next;
            }
        }

        if(!$end_of_options && /^-(.*)$/) {
            $output->write("unknown option: $_\n");
            $output->write($$options_usage);
            exit 1;
        } else {
            push @$arguments, $_;
        }
    }

    if($self->help) {
        $output->write($$options_usage);
        $self->show_help;
        exit 0;
    }

    return $self;
}

sub DESTROY {
}

sub parse_files($) {
    my $self = shift;

    my $arguments = \@{$self->{_ARGUMENTS}};
    my $directories = \@{$self->{_DIRECTORIES}};
    my $c_files = \@{$self->{_C_FILES}};
    my $h_files = \@{$self->{_H_FILES}};

    my $error = 0;
    my @files = ();
    foreach (@$arguments) {
        if(!-e $_) {
            $output->write("$_: no such file or directory\n");
            $error = 1;
        } else {
            push @files, $_;
        }
    }
    if($error) {
        exit 1;
    }

    my @paths = ();
    my @c_files = ();
    my @h_files = ();
    foreach my $file (@files) {
        if($file =~ /\.c$/) {
            push @c_files, $file;
        } elsif($file =~ /\.h$/) {
            push @h_files, $file;
        } else {
            push @paths, $file;
        }
    }

    if($#c_files == -1 && $#h_files == -1 && $#paths == -1)
    {
        @paths = ".";
    }

    if($#paths != -1 || $#c_files != -1) {
        my $c_command = "find " . join(" ", @paths, @c_files) . " -name \\*.c";
        my %found;
        @$c_files = sort(map {
            s/^\.\/(.*)$/$1/;
            if(defined($found{$_})) {
                ();
            } else {
                $found{$_}++;
                $_;
            }
        } split(/\n/, `$c_command`));
    }

    if($#paths != -1 || $#h_files != -1) {
        my $h_command = "find " . join(" ", @paths, @h_files) . " -name \\*.h";
        my %found;

        @$h_files = sort(map {
            s/^\.\/(.*)$/$1/;
            if(defined($found{$_})) {
                ();
            } else {
                $found{$_}++;
                $_;
            }
        } split(/\n/, `$h_command`));
    }

    my %dirs;
    foreach my $file (@$c_files, @$h_files) {
        my $dir = $file;
        $dir =~ s%/?[^/]+$%%;
        if(!$dir) { $dir = "."; }
        $dirs{$dir}++
    }

    @$directories = sort(keys(%dirs));
}

sub options_set($$) {
    my $self = shift;

    my $options_long = \%{$self->{_OPTIONS_LONG}};
    my $options_short = \%{$self->{_OPTIONS_SHORT}};

    local $_ = shift;
    for my $name (sort(keys(%$options_long))) {
        my $option = $$options_long{$name};
        my $key = uc($name);
        $key =~ tr/-/_/;
        $$option{key} = $key;
        my $refvalue = \${$self->{$key}};

        if(/^default$/) {
            $$refvalue = $$option{default};
        } elsif(/^all$/) {
            if($name !~ /^(?:help|debug|verbose|module)$/) {
                if(ref($$refvalue) ne "HASH") {
                    $$refvalue = 1;
                } else {
                    $$refvalue = { active => 1, filter => 0, hash => {} };
                }
            }
        } elsif(/^none$/) {
            if($name !~ /^(?:help|debug|verbose|module)$/) {
                if(ref($$refvalue) ne "HASH") {
                    $$refvalue = 0;
                } else {
                    $$refvalue = { active => 0, filter => 0, hash => {} };
                }
            }
        }
    }
}

sub show_help($) {
    my $self = shift;

    my $options_long = \%{$self->{_OPTIONS_LONG}};
    my $options_short = \%{$self->{_OPTIONS_SHORT}};

    my $maxname = 0;
    for my $name (sort(keys(%$options_long))) {
        if(length($name) > $maxname) {
            $maxname = length($name);
        }
    }

    for my $name (sort(keys(%$options_long))) {
        my $option = $$options_long{$name};
        my $description = $$option{description};
        my $parser = $$option{parser};
        my $current = ${$self->{$$option{key}}};

        my $value = $current;

        my $command;
        if(!defined $parser) {
            if($value) {
                $command = "--no-$name";
            } else {
                $command = "--$name";
            }
        } else {
            if(ref($value) eq "HASH" && $value->{active}) {
                $command = "--[no-]$name\[=<value>]";
            } else {
                $command = "--$name\[=<value>]";
            }
        }

        $output->write($command);
        $output->write(" " x (($maxname - length($name) + 17) - (length($command) - length($name) + 1)));
        if(!defined $parser) {
            if($value) {
                $output->write("Disable ");
            } else {
                $output->write("Enable ");
            }
        } else {
            if(ref($value) eq "HASH")
            {
                if ($value->{active}) {
                    $output->write("(Disable) ");
                } else {
                    $output->write("Enable ");
                }
            }
        }
        $output->write("$description\n");
    }
}

sub AUTOLOAD {
    my $self = shift;

    my $name = $_options::AUTOLOAD;
    $name =~ s/^.*::(.[^:]*)$/\U$1/;

    my $refvalue = $self->{$name};
    if(!defined($refvalue)) {
        die "<internal>: options.pm: member $name does not exist\n";
    }

    if(ref($$refvalue) ne "HASH") {
        return $$refvalue;
    } else {
        return $$refvalue->{active};
    }
}

sub arguments($) {
    my $self = shift;

    my $arguments = \@{$self->{_ARGUMENTS}};

    return @$arguments;
}

sub c_files($) {
    my $self = shift;

    my $c_files = \@{$self->{_C_FILES}};

    if(!defined(@$c_files)) {
        $self->parse_files;
    }

    return @$c_files;
}

sub h_files($) {
    my $self = shift;

    my $h_files = \@{$self->{_H_FILES}};

    if(!defined(@$h_files)) {
        $self->parse_files;
    }

    return @$h_files;
}

sub directories($) {
    my $self = shift;

    my $directories = \@{$self->{_DIRECTORIES}};

    if(!defined(@$directories)) {
        $self->parse_files;
    }

    return @$directories;
}

1;