void agn_bron_kerbosch( GtArray *R, GtArray *P, GtArray *X, GtArray *cliques,
bool skipsimplecliques )
{
gt_assert(R != NULL && P != NULL && X != NULL && cliques != NULL);
if(gt_array_size(P) == 0 && gt_array_size(X) == 0)
{
if(skipsimplecliques == false || gt_array_size(R) != 1)
{
GtUword i;
AgnTranscriptClique *clique = agn_transcript_clique_new();
for(i = 0; i < gt_array_size(R); i++)
{
GtFeatureNode *transcript = *(GtFeatureNode **)gt_array_get(R, i);
agn_transcript_clique_add(clique, transcript);
}
gt_array_add(cliques, clique);
}
}
while(gt_array_size(P) > 0)
{
GtGenomeNode *v = *(GtGenomeNode **)gt_array_get(P, 0);
// newR = R \union {v}
GtArray *newR = agn_gt_array_copy(R, sizeof(GtGenomeNode *));
gt_array_add(newR, v);
// newP = P \intersect N(v)
GtArray *newP = agn_feature_neighbors(v, P);
// newX = X \intersect N(v)
GtArray *newX = agn_feature_neighbors(v, X);
// Recursive call
// agn_bron_kerbosch(R \union {v}, P \intersect N(v), X \intersect N(X))
agn_bron_kerbosch(newR, newP, newX, cliques, skipsimplecliques);
// Delete temporary arrays just created
gt_array_delete(newR);
gt_array_delete(newP);
gt_array_delete(newX);
// P := P \ {v}
gt_array_rem(P, 0);
// X := X \union {v}
gt_array_add(X, v);
}
}
static int construct_mRNAs(GT_UNUSED void *key, void *value, void *data,
GtError *err)
{
ConstructionInfo *cinfo = (ConstructionInfo*) data;
GtArray *gt_genome_node_array = (GtArray*) value,
*mRNAs = (GtArray*) cinfo->mRNAs;
GtGenomeNode *mRNA_node, *first_node, *gn;
const char *tname;
GtStrand mRNA_strand;
GtRange mRNA_range;
GtStr *mRNA_seqid;
GtUword i;
int had_err = 0;
gt_error_check(err);
gt_assert(key && value && data);
/* at least one node in array */
gt_assert(gt_array_size(gt_genome_node_array));
/* determine the range and the strand of the mRNA */
first_node = *(GtGenomeNode**) gt_array_get(gt_genome_node_array, 0);
mRNA_range = gt_genome_node_get_range(first_node);
mRNA_strand = gt_feature_node_get_strand((GtFeatureNode*) first_node);
mRNA_seqid = gt_genome_node_get_seqid(first_node);
/* TODO: support discontinuous start/stop codons */
for (i = 0; !had_err && i < gt_array_size(gt_genome_node_array); i++) {
gn = *(GtGenomeNode**) gt_array_get(gt_genome_node_array, i);
if (gt_feature_node_get_attribute((GtFeatureNode*) gn,
GTF_PARSER_STOP_CODON_FLAG)) {
GtUword j;
GtRange stop_codon_rng = gt_genome_node_get_range(gn);
bool found_cds = false;
for (j = 0; !had_err && j < gt_array_size(gt_genome_node_array); j++) {
GtGenomeNode* gn2;
GtRange this_rng;
const char *this_type;
gn2 = *(GtGenomeNode**) gt_array_get(gt_genome_node_array, j);
if (gn == gn2) continue;
this_rng = gt_genome_node_get_range(gn2);
this_type = gt_feature_node_get_type((GtFeatureNode*) gn2);
if (this_type == gt_symbol(gt_ft_CDS)) {
if (gt_range_contains(&this_rng, &stop_codon_rng)) {
if (cinfo->tidy) {
gt_warning("stop codon on line %u in file %s is contained in "
"CDS in line %u",
gt_genome_node_get_line_number(gn),
gt_genome_node_get_filename(gn),
gt_genome_node_get_line_number(gn2));
found_cds = true;
} else {
gt_error_set(err, "stop codon on line %u in file %s is "
"contained in CDS in line %u",
gt_genome_node_get_line_number(gn),
gt_genome_node_get_filename(gn),
gt_genome_node_get_line_number(gn2));
had_err = -1;
}
break;
}
if (this_rng.end + 1 == stop_codon_rng.start) {
this_rng.end = stop_codon_rng.end;
gt_genome_node_set_range(gn2, &this_rng);
found_cds = true;
break;
}
if (this_rng.start == stop_codon_rng.end + 1) {
this_rng.start = stop_codon_rng.start;
gt_genome_node_set_range(gn2, &this_rng);
found_cds = true;
break;
}
}
}
if (!found_cds) {
if (!had_err) {
if (cinfo->tidy) {
gt_warning("found stop codon on line %u in file %s with no "
"flanking CDS, ignoring it",
gt_genome_node_get_line_number(gn),
gt_genome_node_get_filename(gn));
} else {
gt_error_set(err, "found stop codon on line %u in file %s with no "
"flanking CDS",
gt_genome_node_get_line_number(gn),
gt_genome_node_get_filename(gn));
had_err = -1;
break;
}
}
} else {
gt_array_rem(gt_genome_node_array, i);
gt_genome_node_delete(gn);
}
}
}
for (i = 1; !had_err && i < gt_array_size(gt_genome_node_array); i++) {
GtRange range;
GtStrand strand;
gn = *(GtGenomeNode**) gt_array_get(gt_genome_node_array, i);
range = gt_genome_node_get_range(gn);
mRNA_range = gt_range_join(&mRNA_range, &range);
strand = gt_feature_node_get_strand((GtFeatureNode*) gn);
if (strand != mRNA_strand) {
gt_error_set(err, "feature %s on line %u has strand %c, but the "
"parent transcript has strand %c",
(const char*) key,
gt_genome_node_get_line_number(gn),
GT_STRAND_CHARS[strand],
GT_STRAND_CHARS[mRNA_strand]);
had_err = -1;
break;
} else {
mRNA_strand = gt_strand_join(mRNA_strand, strand);
}
if (!had_err && gt_str_cmp(mRNA_seqid, gt_genome_node_get_seqid(gn))) {
gt_error_set(err, "The features on lines %u and %u refer to different "
"genomic sequences (``seqname''), although they have the same "
"gene IDs (``gene_id'') which must be globally unique",
gt_genome_node_get_line_number(first_node),
gt_genome_node_get_line_number(gn));
had_err = -1;
break;
}
}
if (!had_err) {
mRNA_node = gt_feature_node_new(mRNA_seqid, gt_ft_mRNA, mRNA_range.start,
mRNA_range.end, mRNA_strand);
gt_feature_node_add_attribute(((GtFeatureNode*) mRNA_node), "ID", key);
gt_feature_node_add_attribute(((GtFeatureNode*) mRNA_node), "transcript_id",
key);
if ((tname = gt_hashmap_get(cinfo->transcript_id_to_name_mapping,
(const char*) key)) && strlen(tname) > 0) {
gt_feature_node_add_attribute((GtFeatureNode*) mRNA_node, GT_GFF_NAME,
tname);
}
/* register children */
for (i = 0; i < gt_array_size(gt_genome_node_array); i++) {
gn = *(GtGenomeNode**) gt_array_get(gt_genome_node_array, i);
gt_feature_node_add_child((GtFeatureNode*) mRNA_node,
(GtFeatureNode*) gt_genome_node_ref(gn));
}
/* store the mRNA */
gt_array_add(mRNAs, mRNA_node);
}
return had_err;
}
