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# Copyright (C) 2008 Arne Georg Gleditsch <lxr@linux.no>.
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# The full GNU General Public License is included in this distribution
# in the file called COPYING.
package LXRng::Lang::Kconfig;
use strict;
use Subst::Complex;
use base qw(LXRng::Lang::Generic);
sub doindex {
return 1;
}
sub ctagslangname {
return undef;
}
sub pathexp {
return qr/Kconfig$/;
}
my $_identifier_re = qr(
(?m:^|(?<=[^A-Z0-9_\#])) # Non-symbol chars.
(_*[A-Z][A-Z0-9_]*) # The symbol.
\b
)x;
sub identifier_re {
return $_identifier_re;
}
my $_reserved = { map { $_ => 1 }
qw(menu source endmenu config bool if default help
tristate depends on y n m)};
sub reserved {
return $_reserved;
}
sub parsespec {
return ['atom', '\\\\.', undef,
'comment', '#', "\$",
'string', '"(?:[^\\\\]*\\\\.)*[^\\\\]*"', undef,
'string', "'(?:[^\\\\]*\\\\.)*[^\\\\]*'", undef,
'help', 'help', "^(?=[^ \t\n])",
'include', '^source\s+"', '"'];
}
sub mangle_sym {
return $_[1] =~ /^[A-Z0-9_]+$/ ? 'CONFIG_'.$_[1] : $_[1];
}
sub markuphandlers {
my ($self, $context, $node, $markup) = @_;
my $index = $context->config->{'index'};
my %subst;
my $format_newline = $markup->make_format_newline($node);
$subst{'comment'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/[^\n]+/ => sub { $markup->format_comment(@_) };
$subst{'help'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/^[ \t]*help[ \t]*/ => sub { $markup->format_code($self, @_) },
qr/[^\n\"\']+/ => sub { $markup->format_string(@_) };
$subst{'string'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/[^\n]+/ => sub { $markup->format_string(@_) };
$subst{'include'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/(include\s*\")(.*?)(\")/ => sub {
$markup->format_include([$self->resolve_include($context, $node, @_)],
@_) },
qr/(include\s*\<)(.*?)(\>)/ => sub {
$markup->format_include([$self->resolve_include($context, $node, @_)],
@_) };
$subst{'code'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/[^\n]*/ => sub { $markup->format_code($self, @_) };
$subst{'start'} = new Subst::Complex
qr/^/ => $format_newline;
return \%subst;
}
sub resolve_include {
my ($self, $context, $node, $frag) = @_;
return ();
}
sub index_file {
my ($self, $context, $file, $add_ident) = @_;
my $handle = $file->handle();
my $parse = LXRng::Parse::Simple->new($handle, 8,
@{$self->parsespec});
my $line = 1;
while (1) {
my ($btype, $frag) = $parse->nextfrag;
return 1 unless defined $frag;
$btype ||= 'code';
if ($btype eq 'code') {
while ($frag =~ s/\A(.*)^config (\w+)//) {
my ($pref, $sym) = ($1, $2);
$line += $pref =~ tr/\n/\n/;
$add_ident->($self->mangle_sym($sym),
{'kind' => 'd',
'line' => $line});
}
}
$line += $frag =~ tr/\n/\n/;
}
}
1;
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