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|
#!/usr/bin/perl
use MDK::Common;
sub gtk2 {
my (@files) = @_;
my @subroutines = (
[ 'set_size_request', ' { my ($_self, $_x, $_y) = @_ }' ],
);
my $add = sub {
push @subroutines, [ $_[0], $_[1] ];
};
my $pm_file = sub {
my ($file) = @_;
my @contents = cat_($file);
each_index {
if (/^\s*sub\s+(\w+)/) {
my $fun = $1;
my $line = $::i;
#- obtain first statement of function
local $_ = $_;
if (/^\s*sub\s+\w+\s*{?\s*$/) {
if ($contents[$::i+1] =~ /^\s*{\s*$/) {
$_ .= $contents[++$line] . $contents[++$line];
} else {
$_ .= $contents[++$line];
}
}
my $subroutine_decl = '^\s*sub\s+\w+\s*{\s*';
#- one liner constants
#- sub EXPOSURE_MASK { 'exposure-mask' }
/$subroutine_decl('[^']+')|("[^"]+")\s*}/ and $add->($fun, '() {}');
#- sub Sym_Hangul_J_Phieuf { 0xeed }
/$subroutine_decl\d\S+\s*}/ and $add->($fun, '() {}');
#- traditional form
#- my ($class, $interval, $func, $data) = @_;
if (/$subroutine_decl\my\s*\(([^\)]+)\)\s*=\s*\@_\s*;\s*$/) {
my @args = map { /^\s*\$(.*)/ or goto skip_trad; '$_'.$1 } split /,/, $1;
$add->($fun, ' { my ('.join(', ', @args).') = @_ }');
skip_trad:
}
#- methods not naming arguments
#- sub set_name { $_[0]->set_property('name', $_[1]) }
if (/$subroutine_decl([^}]+)\s*}\s*$/) {
my $statement = $1;
if ($statement !~ /\$[a-zA-Z]/ && $statement !~ /\@_/ && $statement =~ /.*\$_\[(\d+)\]/) {
$add->($fun, ' { my ('.join(', ', map { '$_DUMMY'.$_ } 0..$1).') = @_ }');
}
}
#- methods with no argument
#- my $values = shift->_get_size_request;
if (/$subroutine_decl(my.*=)?\s*shift->\w+\s*((;)|(}))\s*$/) {
$add->($fun, ' { my ($_self) = @_ }');
}
#- methods with variable list of arguments (which branch to different XS functions)
#- Gtk2::_Helpers::check_usage(\@_, [ 'Gtk2::GSList group' ], [ 'Gtk2::GSList group', 'string label' ]);
if (/Gtk2::_Helpers::check_usage\(\\\@_, (.*)/) {
my $various = $1;
while ($various !~ /\)\s*;\s*$/) {
$various .= $contents[++$line];
}
$various =~ s/\)\s*;\s*$//;
my $subroutine = ' { my (';
my @various = split /\]\s*,/, $various;
s/[\[\]]//g foreach @various;
my @mandatory = split /,/, $various[0];
my $proto2varname = sub { $_[0] =~ /\s*'\s*\S+\s+(.*)\s*'/; $1 };
$subroutine .= join(', ', map { '$_'.$proto2varname->($_) } @mandatory);
@mandatory and $subroutine .= ', ';
my @optional = split /,/, $various[-1];
@optional = splice @optional, @mandatory;
$subroutine .= join(', ', map { '$o_'.$proto2varname->($_) } @optional);
$add->($fun, "$subroutine) = \@_ }");
}
}
} @contents;
};
my $c_file = sub {
my ($file) = @_;
my @contents = cat_($file);
my $comment;
each_index {
m|/\*| and $comment = 1;
m|\*/| and $comment = 0;
s|/\*.*\*/||;
s|//.*||;
$comment and goto next_;
/^#/ and goto next_;
/^\s*static/ and goto next_;
if (/^\S.*\s(\w+)\s*\((.*)/) {
my $fun = $1;
#- skip "internal" functions
$fun =~ /__/ and goto next_;
my $args = $2;
#- guess function name
$fun =~ s/^.*perl_//;
my ($trimlast) = $file =~ /([A-Z]\w+)\.c$/;
while ($trimlast =~ s/([a-z])([A-Z])/$1_$2/) {}
$trimlast =~ s/^G([A-Z])/$1/; #- glib case
$file =~ m|Gdk/Event/src| and $trimlast = "event_$trimlast"; #- gdkevent case
$trimlast = lc($trimlast);
#- skip functions that will not be exported anyway because don't follow the naming scheme
$fun =~ s/^\Q$trimlast\_// or goto next_;
#- explore following lines if prototype was not complete
my $line = $::i;
while ($args !~ /\)/) {
$line++;
$args .= $contents[$line];
}
$args =~ s/\s+/ /g;
$args =~ s/\).*//;
my $proto2varname = sub { $_[0] =~ /(\w+)\s*$/; $1 };
my @args = split /,/, $args;
$add->($fun, ' { my (' . join(', ', map { '$_'.$proto2varname->($_) } @args) . ') = @_ }');
}
next_:
} @contents;
};
foreach (@files) {
/\.pm$/ and $pm_file->($_);
/\.c$/ and $c_file->($_);
}
print
"package Gtk2;
our \@ISA = qw();
";
@subroutines = sort { $a->[0] cmp $b->[0] } @subroutines;
my @ok;
foreach my $fun (uniq(map { $_->[0] } @subroutines)) {
my @multiples = grep { $_->[0] eq $fun } @subroutines;
if (@multiples != 1) {
my $args = -1;
foreach (@multiples) {
my $a = split /,/, $_->[1];
$args == -1 and $args = $a;
#- ignore multiply defined functions that have different numbers of arguments
$args != $a and $multiples[0][1] = ' {}';
}
my $i;
$multiples[0][1] =~ s/\$_(\w+)/'$_DUMMY'.$i++/ge;
push @ok, @multiples[0];
} else {
push @ok, @multiples;
}
}
print "sub Gtk2::$_->[0]$_->[1]\n" foreach @ok;
}
if ($ARGV[0] =~ /gtk2/) {
shift @ARGV;
gtk2(@ARGV);
}
|
