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* [9front] [PATCH] aux/cddb: parse and print year and artist if defined
@ 2021-07-11  3:22 Jacob Moody
  0 siblings, 0 replies; only message in thread
From: Jacob Moody @ 2021-07-11  3:22 UTC (permalink / raw)
  To: 9front

When poking around cddb I found that some CDs would have artist information within the title fields.
I figured cddb could parse them if present.

---
diff 51a351e84570e8ac4322ad202bfc57f648755019 be3d56ee5c74fd681e94f7bcf5781b3f4137b2e5
--- a/sys/src/cmd/aux/cddb.c	Sat Jul 10 09:57:46 2021
+++ b/sys/src/cmd/aux/cddb.c	Sat Jul 10 21:17:26 2021
@@ -14,6 +14,7 @@
 struct Track {
 	int n;
 	char *title;
+	char *artist;
 };

 enum {
@@ -25,6 +26,8 @@
 	ulong diskid;
 	int ntrack;
 	char *title;
+	char *year;
+	char *artist;
 	Track track[MTRACK];
 };

@@ -55,17 +58,23 @@
 {
 	int i, n, s;

-	print("title	%s\n", t->title);
+	print("title\t%s\n", t->title);
+	if(t->year[0] != 0)
+		print("year\t%s\n", t->year);
+	if(t->artist[0] != 0)
+		print("artist\t%s\n", t->artist);
 	for(i=0; i<t->ntrack; i++){
+		print("%d\t%s", i+1, t->track[i].title);
 		if(tflag){
 			n = t->track[i+1].n;
 			if(i == t->ntrack-1)
 				n *= 75;
 			s = (n - t->track[i].n)/75;
-			print("%d\t%s\t%d:%2.2d\n", i+1, t->track[i].title, s/60, s%60);
+			print("\t%d:%2.2d", s/60, s%60);
 		}
-		else
-			print("%d\t%s\n", i+1, t->track[i].title);
+		if(t->track[i].artist[0] != 0)
+			print("\t%s", t->track[i].artist);
+		print("\n");
 	}
 	if(Tflag){
 		s = t->track[i].n;
@@ -84,12 +93,26 @@
 	return c;
 }

+char*
+split(char *s)
+{
+	char *p;
+
+	for(p=s; *p != '/' && *p != 0; p++)
+		;
+	if(*p == '/'){
+		p[-1] = 0;
+		return p+2;
+	}
+	return nil;
+}
+
 static int
 cddbfilltoc(Toc *t)
 {
 	int fd;
 	int i;
-	char *p, *q;
+	char *p, *q, *a;
 	Biobuf bin;
 	char *f[10];
 	int nf;
@@ -183,8 +206,12 @@
 	}

 	t->title = "";
-	for(i=0; i<t->ntrack; i++)
+	t->artist = "";
+	t->year = "";
+	for(i=0; i<t->ntrack; i++) {
 		t->track[i].title = "";
+		t->track[i].artist = "";
+	}

 	/* fetch results for this cd */
 	fprint(fd, "cddb read %s %s\r\n", categ, id);
@@ -195,8 +222,18 @@
 		while(isspace(*q))
 			*q-- = 0;
 DPRINT(2, "cddb %s\n", p);
-		if(strncmp(p, "DTITLE=", 7) == 0)
-			t->title = append(t->title, p+7);
+		if(strncmp(p, "DTITLE=", 7) == 0) {
+			p += 7;
+			a = split(p);
+			if(a != nil) {
+				t->artist = append(t->title, p);
+				p = a;
+			}
+			t->title = append(t->title, p);
+		}
+		else if(strncmp(p, "DYEAR=", 6) == 0) {
+			t->year = append(t->year, p+6);
+		}
 		else if(strncmp(p, "TTITLE", 6) == 0 && isdigit(p[6])) {
 			i = atoi(p+6);
 			if(i < t->ntrack) {
@@ -205,8 +242,12 @@
 					p++;
 				if(*p == '=')
 					p++;
-
-				t->track[i].title = append(t->track[i].title, estrdup(p));
+				a = split(p);
+				if(a != nil) {
+					t->track[i].artist = append(t->track[i].artist, estrdup(p));
+					p = a;
+				}
+				t->track[i].title = append(t->track[i].title, estrdup(p));	
 			}
 		}
 	} while(*p != '.');

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2021-07-11  3:22 [9front] [PATCH] aux/cddb: parse and print year and artist if defined Jacob Moody

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