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|
package LXRng::Lang::C;
use strict;
use Subst::Complex;
use base qw(LXRng::Lang::Generic);
sub doindex {
return 1;
}
sub ctagslangname {
return 'c';
}
sub ctagsopts {
return ('--c-types=+lpx');
}
sub pathexp {
return qr/\.[ch]$/;
}
my $_identifier_re = qr(
(?m:^|(?<=[^a-zA-Z0-9_\#])) # Non-symbol chars.
(_*[a-zA-Z][a-zA-Z0-9_]*) # The symbol.
\b
)x;
sub identifier_re {
return $_identifier_re;
}
my $_reserved ||= { map { $_ => 1 }
qw(asm auto break case char continue default do
double else enum extern float for fortran goto
if int long register return short signed sizeof
static struct switch typedef union unsigned
void volatile while
#define #else #endif #if #ifdef #ifndef #include
#undef)};
sub reserved {
return $_reserved;
}
sub parsespec {
return ['atom', '\\\\.', undef,
'comment', '/\*', '\*/',
'comment', '//', "\$",
'string', '"', '"',
'string', "'", "'",
'include', '#\s*include', "\$"];
}
sub typemap {
return {
'c' => 'class',
'd' => 'macro (un)definition',
'e' => 'enumerator',
'f' => 'function definition',
'g' => 'enumeration name',
'm' => 'class, struct, or union member',
'n' => 'namespace',
'p' => 'function prototype or declaration',
's' => 'structure name',
't' => 'typedef',
'u' => 'union name',
'v' => 'variable definition',
'x' => 'extern or forward variable declaration',
'i' => 'interface'};
}
sub markuphandlers {
my ($self, $context, $node, $markup) = @_;
my $index = $context->config->{'index'};
my $syms = $index->symbols_by_file($context->tree, $context->release,
$node->name);
my $idre = $self->identifier_re();
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{'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 { $markup->format_code($idre, $syms, @_) };
$subst{'start'} = new Subst::Complex
qr/^/ => $format_newline;
return \%subst;
}
sub resolve_include {
my ($self, $context, $node, $frag) = @_;
if ($frag =~ /include\s+<(.*?)>/) {
return $self->expand_include($context, $node, $1);
}
elsif ($frag =~ /include\s+\"(.*?)\"/) {
my $incl = $1;
my $bare = $1;
my $name = $node->name();
if ($name =~ /(.*\/)/) {
$incl = $1.$incl;
1 while $incl =~ s,/[^/]+/../,/,;
my $file = $context->config->{'repository'}->node($incl, $context->release);
return $incl if $file;
return $self->expand_include($context, $node, $bare);
}
}
return ();
}
1;
|
