X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=sam_view.c;h=fbffdb4f178e3b11c53a735b6b062b7754844e16;hb=674ffee7adcfc928f5039777180206fdebc5539b;hp=170bd843608b99aec35161141ee6afaad848db5e;hpb=8ef16f0ffefe94ead2c9e367ebcb66490fdea2cb;p=samtools.git

diff --git a/sam_view.c b/sam_view.c
index 170bd84..fbffdb4 100644
--- a/sam_view.c
+++ b/sam_view.c
@@ -18,10 +18,15 @@ typedef struct {
 
 typedef khash_t(rg) *rghash_t;
 
-rghash_t g_rghash = 0;
+static rghash_t g_rghash = 0;
 static int g_min_mapQ = 0, g_flag_on = 0, g_flag_off = 0;
 static char *g_library, *g_rg;
 static int g_sol2sanger_tbl[128];
+static void *g_bed;
+
+void *bed_read(const char *fn);
+void bed_destroy(void *_h);
+int bed_overlap(const void *_h, const char *chr, int beg, int end);
 
 static void sol2sanger(bam1_t *b)
 {
@@ -44,6 +49,8 @@ static inline int __g_skip_aln(const bam_header_t *h, const bam1_t *b)
 {
 	if (b->core.qual < g_min_mapQ || ((b->core.flag & g_flag_on) != g_flag_on) || (b->core.flag & g_flag_off))
 		return 1;
+	if (g_bed && b->core.tid >= 0 && !bed_overlap(g_bed, h->target_name[b->core.tid], b->core.pos, bam_calend(&b->core, bam1_cigar(b))))
+		return 1;
 	if (g_rg || g_rghash) {
 		uint8_t *s = bam_aux_get(b, "RG");
 		if (s) {
@@ -90,7 +97,7 @@ int main_samview(int argc, char *argv[])
 
 	/* parse command-line options */
 	strcpy(in_mode, "r"); strcpy(out_mode, "w");
-	while ((c = getopt(argc, argv, "Sbct:h1Ho:q:f:F:ul:r:xX?T:CR:")) >= 0) {
+	while ((c = getopt(argc, argv, "Sbct:h1Ho:q:f:F:ul:r:xX?T:CR:L:")) >= 0) {
 		switch (c) {
 		case 'c': is_count = 1; break;
 		case 'C': slx2sngr = 1; break;
@@ -106,6 +113,7 @@ int main_samview(int argc, char *argv[])
 		case 'u': compress_level = 0; break;
 		case '1': compress_level = 1; break;
 		case 'l': g_library = strdup(optarg); break;
+		case 'L': g_bed = bed_read(optarg); break;
 		case 'r': g_rg = strdup(optarg); break;
 		case 'R': fn_rg = strdup(optarg); break;
 		case 'x': of_type = BAM_OFHEX; break;
@@ -215,6 +223,7 @@ view_end:
 	}
 	// close files, free and return
 	free(fn_list); free(fn_ref); free(fn_out); free(g_library); free(g_rg); free(fn_rg);
+	if (g_bed) bed_destroy(g_bed);
 	if (g_rghash) {
 		khint_t k;
 		for (k = 0; k < kh_end(g_rghash); ++k)
@@ -240,6 +249,7 @@ static int usage(int is_long_help)
 	fprintf(stderr, "         -x       output FLAG in HEX (samtools-C specific)\n");
 	fprintf(stderr, "         -X       output FLAG in string (samtools-C specific)\n");
 	fprintf(stderr, "         -c       print only the count of matching records\n");
+	fprintf(stderr, "         -L FILE  output alignments overlapping the input BED FILE [null]\n");
 	fprintf(stderr, "         -t FILE  list of reference names and lengths (force -S) [null]\n");
 	fprintf(stderr, "         -T FILE  reference sequence file (force -S) [null]\n");
 	fprintf(stderr, "         -o FILE  output file name [stdout]\n");