+static void
+set_label (struct val_lab *lab, const char *escaped_label)
+{
+ lab->escaped_label = intern_new (escaped_label);
+ if (strstr (escaped_label, "\\n") == NULL)
+ lab->label = intern_ref (lab->escaped_label);
+ else
+ {
+ struct string s;
+ const char *p;
+
+ ds_init_empty (&s);
+ ds_extend (&s, intern_strlen (lab->escaped_label));
+ for (p = escaped_label; *p != '\0'; p++)
+ {
+ char c = *p;
+ if (c == '\\' && p[1] == 'n')
+ {
+ c = '\n';
+ p++;
+ }
+ ds_put_byte (&s, c);
+ }
+ lab->label = intern_new (ds_cstr (&s));
+ ds_destroy (&s);
+ }
+}
+