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#!/usr/bin/perl
#
# Copyright (C) 2010 The gtkmm Development Team
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
#
#
# This script just fixes automatically generated defs files. It does not
# override single line defs. To override a def a first two lines of the def
# and its override must match. See gtk_signals.defs and gtk_defs.overrides
# in gtkmm's gtk/src/gtk directory.
#
# Usage: defs_fixer.pl defs overrides
#
use strict;
use warnings;
use IO::File;
sub main ();
sub read_file ($);
sub override ($$);
sub get_header($);
sub get_quoted_text ($);
sub write_file ($$);
sub get_end_token_index ($$);
main ();
sub main ()
{
if (@ARGV != 2)
{
print STDERR "usage: defs_fixer.pl defs_file override_file\n";
exit 1;
}
my $defs_a_r = read_file ($ARGV[0]);
my $overrides_a_r = read_file ($ARGV[1]);
unless (@{$defs_a_r})
{
print STDERR join ('', $ARGV[0], 'holds no tokens.', "\n");
exit 1;
}
unless (@{$overrides_a_r})
{
print STDERR join ('', $ARGV[1], 'holds no tokens.', "\n");
exit 1;
}
if (override ($defs_a_r, $overrides_a_r))
{
write_file ($ARGV[0], $defs_a_r);
}
else
{
print STDOUT "Nothing to fix.\n";
}
exit 0;
}
sub read_file($)
{
my $buf_a_r = [];
my $path = shift;
my $file = IO::File->new ($path, 'r');
unless (defined ($file))
{
print STDERR join ('', 'Failed to open file: ', $path, "\n");
exit 1;
}
@{$buf_a_r} = <$file>;
$file->close ();
return $buf_a_r;
}
sub override($$)
{
my $defs_a_r = shift;
my $overrides_a_r = shift;
my $defs_index = 0;
my $anything_changed = 0;
for (my $defs_index = 0; $defs_index < @{$defs_a_r}; ++$defs_index)
{
my $def = $defs_a_r->[$defs_index];
my $def_header = get_header ($def);
if ($def_header ne '<!>')
{
my $overrides_index = 0;
for (my $overrides_index = 0; $overrides_index < @{$overrides_a_r}; ++$overrides_index)
{
my $override = $overrides_a_r->[$overrides_index];
my $override_header = get_header ($override);
if ($override_header ne '<!>')
{
if ($def_header eq $override_header
and $defs_index + 1 < @{$defs_a_r}
and $overrides_index + 1 < @{$overrides_a_r}
and $defs_a_r->[$defs_index + 1] eq $overrides_a_r->[$overrides_index + 1]
)
{
my $defs_end_index = get_end_token_index ($defs_a_r, $defs_index);
my $overrides_end_index = get_end_token_index ($overrides_a_r, $overrides_index);
# replace a def with override
splice (@{$defs_a_r}, $defs_index, $defs_end_index - $defs_index, @{$overrides_a_r}[$overrides_index .. $overrides_end_index - 1]);
# remove an override from overrides
splice (@{$overrides_a_r}, $overrides_index, $overrides_end_index - $overrides_index);
print join ('', 'Fixed \'', $def_header, '\' (', get_quoted_text ($defs_a_r->[$defs_index + 1]), ").\n");
$anything_changed = 1;
last;
}
}
}
}
}
return $anything_changed;
}
sub get_header ($)
{
my $token = shift;
# we do not care about single line defs - they do not happen in generated
# defs, so we mark them as <!>.
if ($token =~ /^\((\S+\s+\S+[^)])\n$/)
{
my $header = $1;
$header =~ s/\s+/ /g;
return $header;
}
return '<!>';
}
sub get_quoted_text ($)
{
my $line = shift;
if ($line =~ /"([^"]*)"/)
{
return $1;
}
return "null";
}
sub write_file ($$)
{
my $path = shift;
my $defs_a_r = shift;
my $file = IO::File->new ($path, 'w');
unless (defined ($file))
{
print STDERR join ('', 'Failed to open file for writing: ', $path, "\n");
exit 1;
}
for my $def (@{$defs_a_r})
{
print $file $def;
}
}
# returns an index that is one past the def.
sub get_end_token_index ($$)
{
my $lines_a_r = shift;
my $start_index = shift;
for (my $iter = $start_index; $iter < @{$lines_a_r}; ++$iter)
{
if ($lines_a_r->[$iter] eq ")\n")
{
return $iter + 1;
}
}
return 0 + @{$lines_a_r};
}
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