dtc: Make -Idts -Odts preserve property-internal labels

This patch changes -Odts mode output so that labels within property
values in the input are preserved in the output.  Applied on top of
the earlier patch to preserve node and property labels in -Odts mode,
this means that dtc in -Idts -Odts mode will transfer all labels in
the input to the output.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/treesource.c b/treesource.c
index 0a4367a..0752280 100644
--- a/treesource.c
+++ b/treesource.c
@@ -60,13 +60,24 @@
 {
 	char *str = val.val;
 	int i;
+	int newchunk = 1;
+	struct fixup *l = val.labels;
 
 	assert(str[val.len-1] == '\0');
 
-	fprintf(f, "\"");
 	for (i = 0; i < (val.len-1); i++) {
 		char c = str[i];
 
+		if (newchunk) {
+			while (l && (l->offset <= i)) {
+				assert(l->offset == i);
+				fprintf(f, "%s: ", l->ref);
+				l = l->next;
+			}
+			fprintf(f, "\"");
+			newchunk = 0;
+		}
+
 		switch (c) {
 		case '\a':
 			fprintf(f, "\\a");
@@ -96,7 +107,8 @@
 			fprintf(f, "\\\"");
 			break;
 		case '\0':
-			fprintf(f, "\", \"");
+			fprintf(f, "\", ");
+			newchunk = 1;
 			break;
 		default:
 			if (isprint(c))
@@ -106,20 +118,41 @@
 		}
 	}
 	fprintf(f, "\"");
+
+	/* Wrap up any labels at the end of the value */
+	while (l) {
+		assert (l->offset == val.len);
+		fprintf(f, " %s:", l->ref);
+		l = l->next;
+	}
 }
 
 static void write_propval_cells(FILE *f, struct data val)
 {
 	void *propend = val.val + val.len;
 	cell_t *cp = (cell_t *)val.val;
+	struct fixup *l = val.labels;
 
 	fprintf(f, "<");
 	for (;;) {
+		while (l && (l->offset <= ((char *)cp - val.val))) {
+			assert(l->offset == ((char *)cp - val.val));
+			fprintf(f, "%s: ", l->ref);
+			l = l->next;
+		}
+
 		fprintf(f, "%x", be32_to_cpu(*cp++));
 		if ((void *)cp >= propend)
 			break;
 		fprintf(f, " ");
 	}
+
+	/* Wrap up any labels at the end of the value */
+	while (l) {
+		assert (l->offset == val.len);
+		fprintf(f, " %s:", l->ref);
+		l = l->next;
+	}
 	fprintf(f, ">");
 }
 
@@ -127,14 +160,27 @@
 {
 	void *propend = val.val + val.len;
 	char *bp = val.val;
+	struct fixup *l = val.labels;
 
 	fprintf(f, "[");
 	for (;;) {
+		while (l && (l->offset == (bp-val.val))) {
+			fprintf(f, "%s: ", l->ref);
+			l = l->next;
+		}
+
 		fprintf(f, "%02hhx", *bp++);
 		if ((void *)bp >= propend)
 			break;
 		fprintf(f, " ");
 	}
+
+	/* Wrap up any labels at the end of the value */
+	while (l) {
+		assert (l->offset == val.len);
+		fprintf(f, " %s:", l->ref);
+		l = l->next;
+	}
 	fprintf(f, "]");
 }
 
@@ -142,7 +188,9 @@
 {
 	int len = prop->val.len;
 	char *p = prop->val.val;
+	struct fixup *l;
 	int nnotstring = 0, nnul = 0;
+	int nnotstringlbl = 0, nnotcelllbl = 0;
 	int i;
 
 	if (len == 0) {
@@ -157,15 +205,23 @@
 			nnul++;
 	}
 
-	fprintf(f, " = ");
+	for (l = prop->val.labels; l; l = l->next) {
+		if ((l->offset > 0) && (prop->val.val[l->offset - 1] != '\0'))
+			nnotstringlbl++;
+		if ((l->offset % sizeof(cell_t)) != 0)
+			nnotcelllbl++;
+	}
 
-	if ((p[len-1] == '\0') && (nnotstring == 0) && (nnul < (len-nnul))) {
+	fprintf(f, " = ");
+	if ((p[len-1] == '\0') && (nnotstring == 0) && (nnul < (len-nnul))
+	    && (nnotstringlbl == 0)) {
 		write_propval_string(f, prop->val);
-	} else if (((len % sizeof(cell_t)) == 0)) {
+	} else if (((len % sizeof(cell_t)) == 0) && (nnotcelllbl == 0)) {
 		write_propval_cells(f, prop->val);
 	} else {
 		write_propval_bytes(f, prop->val);
 	}
+
 	fprintf(f, ";\n");
 }