(sexp_vformat): Handle %( and %).

Rev: src/nettle/sexp-format.c:1.8
Rev: src/nettle/sexp.h:1.14

sexp-format.c

@@ -146,6 +146,14 @@ sexp_vformat(struct nettle_buffer *buffer, const char *format, va_list args)
 	    default:
 	      abort();
 
+	    case '(':
+	    case ')':
+	      /* Allow unbalanced parenthesis */
+	      if (buffer && !NETTLE_BUFFER_PUTC(buffer, format[-1]))
+		return 0;
+	      done++;
+	      break;
+	      
 	    case 's':
 	      {
 		const char *s;

sexp.h

@@ -153,14 +153,15 @@ struct nettle_buffer;
  *        subexpression. Represented as unsigned length, const uint8_t
  *        *data.
  *
+ *   %(, %)  Allows insertion of unbalanced parenthesis.
+ *
  * Modifiers:
  *
  *   %0   For %s, %t and %l, says that there's no length argument,
  *        instead the string is NUL-terminated, and there's only one
  *        const uint8_t * argument.
- *
- * FIXME: Allow "%(" for unbalanced parenthesis. */
-
+ */
+ 
 unsigned
 sexp_format(struct nettle_buffer *buffer,
 	    const char *format, ...);