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#!/usr/bin/perl -w
use strict;
use MDK::Common;
my ($current_package, $current_prefix, $current_name);
sub is_blacklisted {
my ($name) = @_;
member($name, qw(can isa print use));
}
my %l;
sub get_paras {
my ($name, $para) = @_;
$name =~ s/\Q$current_prefix//;
# remove empty prototypes from functions (it's possible we see it using shift later):
$name =~ s/\(\)//;
$current_name = $name;
# perl_checker don't like those:
return if is_blacklisted($name);
# handle special case "sub foobar { shift->method_call(...) }
if ($para =~ /shift->\S+\(.*\@_\b.*\)/) {
$l{$current_package}{$name} = [ '$_self', '@_more_paras' ];
return;
}
$l{$current_package}{$name} = [ map {
if (/\Q.../) {
# C code:
'@_more_paras';
} elsif (/[%@]\w+.* = \@_/) {
# perl code:
'@_more_paras';
} else {
my ($optional) = s/=(.*)//;
my $s = /.*\W(\w+)/ ? $1 : $_;
# so that perl_checker doesn't complain about fake packages themselves:
# (also tag as optionnal)
'$_' . ($optional ? 'o_' : '') . $s;
}
} grep { !/OUTLIST/ } split(',', $para) ];
}
sub parse_xs {
my ($file) = @_;
warn "parse_xs $file\n";
my $state = 'waiting_for_type';
($current_package, $current_prefix) = ('', '');
my $multi_line;
my $c;
foreach (cat_($file)) {
$c++;
next if /^=/ ... /^=cut/;
next if /^BOOT/ ... /^$/;
chomp;
my $orig_line = $_;
if (/^\s*#/ || (m!^\s*/\*! .. m!\*/!)) {
# forget it
} elsif ($state eq 'multi_line') {
if (/(.*)\)/) {
get_paras($current_name, $multi_line . $1);
$state = 'waiting_for_end';
} else {
$multi_line .= $_;
}
# } elsif (/^\s*gperl_set_isa\s*\("(.*)", ".*"\)\s*;/) {
} elsif (/MODULE\s*=\s*\S+\s+PACKAGE\s*=\s*(\S+)\s+PREFIX\s*=\s*(\S+)/) {
($current_package, $current_prefix) = ($1, $2);
} elsif (/MODULE\s*=\s*\S+\s+PACKAGE\s*=\s*(\S+)/) {
($current_package, $current_prefix) = ($1, '');
} elsif (!$current_package) {
# waiting for the MODULE line
} elsif (/^\s*$/) {
$state = 'waiting_for_type';
} elsif (/^\w[^\(]*$/ && $state eq 'waiting_for_type') {
$state = 'waiting_for_function' if !/^BOOT:/ && !/;/;
} elsif (/^\s*ALIAS:\s*$/) {
$state = 'alias';
} elsif ($state eq 'alias') {
if (my ($f) = /^\s*(\S+)\s*=\s*\d+\s*$/) {
my $pkg = $f =~ s/(.*)::// ? $1 : $current_package;
$l{$pkg}{$f} ||= $l{$current_package}{$current_name};
} else {
warn "bad line #$c $orig_line (state: $state)\n" if !/^\s*\w+:\s*$/ && !/^\s*$/;
$state = 'waiting_for_end';
}
} elsif ($state eq 'waiting_for_type' && s/^(const\s*)?\w+\s*(\*\s*)?// ||
$state eq 'waiting_for_function' && /^\w+/) {
if (my ($name, $para) = /^(\S+)\s*\((.*)\)\s*;?\s*$/) {
get_paras($name, $para);
$state = 'waiting_for_end';
} elsif (($name, $para) = /^(\S+)\s*\((.*)$/) {
$multi_line = $para;
$current_name = $name;
$state = 'multi_line';
} else {
warn "bad line #$c $orig_line (state: $state)\n";
}
} else {
warn "bad line #$c $orig_line (state: $state)\n" if
!(($state eq 'waiting_for_end' || $state eq 'waiting_for_type') &&
(/^\s/ || /^[{}]\s*$/ || /^(CODE|OUTPUT):\s*$/));
}
}
}
sub parse_pm {
my ($file) = @_;
warn "parse_pm $file\n";
my $state = 'waiting_for_type';
my $name;
$current_package = '';
my $c;
my $magic_value = 'MAGEIA_MAGIC_STOP';
foreach (cat_($file), $magic_value, $magic_value) {
$c++;
next if /^=/ .. /^=cut|^$magic_value/;
next if /^$magic_value/;
chomp;
my $orig_line = $_;
if (/^\s*#/ || (m!^\s*/\*! .. m!\*/!)) {
# forget it
} elsif (/^package\s*(\S+)\s*;/) {
$current_package = $1;
} elsif (!$current_package) {
# waiting for the package line
} elsif (/^sub\s*(\S*);/ && !/;.*\)/) {
# forget it
} elsif (/^sub\s*(\S*)/) {
$name = $1;
# handle functions without spacing before opening "{" (eg: "sub set_color_fg{")
$name =~ s/{$//;
$l{$current_package}{$name} = [] if !defined($l{$current_package}{$name}) && !is_blacklisted($name);
$state = 'waiting_for_param';
get_paras($name, $_) if /shift->/;
} elsif ($state eq 'waiting_for_param' && /=\s*\@_/) {
get_paras($name, $_);
$state = 'waiting_for_end';
} else {
warn "bad line2 #$c $orig_line (state: $state)\n" if 0 &&
!(($state eq 'waiting_for_end' || $state eq 'waiting_for_type') &&
(/^\s/ || /^[{}]\s*$/ || /^(CODE|OUTPUT):\s*$/));
}
}
}
my ($pkg_name, $dir) = @ARGV;
my @xs_files = chomp_(`find $dir -name "*.xs"`);
# ignore test suites, inc/ and ext/ :
my @pm_files = chomp_(`find $dir -name "*.pm" | egrep -v '/(ext|inc|t)/'`);
@ARGV == 2 && (@xs_files || @pm_files) or die "usage: gen.pl <Gtk2 or Glib> <dir where Gtk2's or Glib's *.xs are>\n";
parse_xs($_) foreach @xs_files;
parse_pm($_) foreach @pm_files;
print "package $pkg_name;\nuse Glib;\n" if $pkg_name eq 'Gtk2';
foreach my $pkg (sort keys %l) {
print "\npackage $pkg;\n";
print "our \@ISA = qw();\n";
foreach my $name (sort keys %{$l{$pkg}}) {
my $xs_name = $name . "__XS";
my $para = $l{$pkg}{$xs_name} || $l{$pkg}{$name};
$name = $pkg . '::' . $name if $name =~ /^(ne|eq|foreach|format|ge|length|sub|x|xor|y)$/;
if (@$para) {
print "sub $name { my (", join(", ", @$para), ") = \@_ }\n";
} elsif ($name =~ /\(/) {
print "sub $name {}\n";
} else {
print "sub $name() {}\n";
}
}
}
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