cue_tag: added function cue_tag()

src/cue/cue_tag.c

@@ -172,20 +172,15 @@ cue_tag_merge(struct tag *a, struct tag *b)
 }
 
 struct tag *
-cue_tag_file(FILE *fp, unsigned tnum)
+cue_tag(struct Cd *cd, unsigned tnum)
 {
-	struct Cd *cd;
 	struct tag *cd_tag, *track_tag;
 
-	assert(fp != NULL);
+	assert(cd != NULL);
 
 	if (tnum > 256)
 		return NULL;
 
-	cd = cue_parse_file(fp);
-	if (cd == NULL)
-		return NULL;
-
 	/* tag from CDtext info */
 	cd_tag = cue_tag_cd(cd_get_cdtext(cd), cd_get_rem(cd));
 
@@ -193,16 +188,35 @@ cue_tag_file(FILE *fp, unsigned tnum)
 	track_tag = cue_tag_track(track_get_cdtext(cd_get_track(cd, tnum)),
 				  track_get_rem(cd_get_track(cd, tnum)));
 
+	return cue_tag_merge(cd_tag, track_tag);
+}
+
+struct tag *
+cue_tag_file(FILE *fp, unsigned tnum)
+{
+	struct Cd *cd;
+	struct tag *tag;
+
+	assert(fp != NULL);
+
+	if (tnum > 256)
+		return NULL;
+
+	cd = cue_parse_file(fp);
+	if (cd == NULL)
+		return NULL;
+
+	tag = cue_tag(cd, tnum);
 	cd_delete(cd);
 
-	return cue_tag_merge(cd_tag, track_tag);
+	return tag;
 }
 
 struct tag *
 cue_tag_string(const char *str, unsigned tnum)
 {
 	struct Cd *cd;
-	struct tag *cd_tag, *track_tag;
+	struct tag *tag;
 
 	assert(str != NULL);
 
@@ -213,14 +227,8 @@ cue_tag_string(const char *str, unsigned tnum)
 	if (cd == NULL)
 		return NULL;
 
-	/* tag from CDtext info */
-	cd_tag = cue_tag_cd(cd_get_cdtext(cd), cd_get_rem(cd));
-
-	/* tag from TRACKtext info */
-	track_tag = cue_tag_track(track_get_cdtext(cd_get_track(cd, tnum)),
-				  track_get_rem(cd_get_track(cd, tnum)));
-
+	tag = cue_tag(cd, tnum);
 	cd_delete(cd);
 
-	return cue_tag_merge(cd_tag, track_tag);
+	return tag;
 }

src/cue/cue_tag.h

@@ -8,6 +8,10 @@
 #include <stdio.h>
 
 struct tag;
+struct Cd;
+
+struct tag *
+cue_tag(struct Cd *cd, unsigned tnum);
 
 struct tag *
 cue_tag_file(FILE *file, unsigned tnum);