diff --git a/include/proto/pattern.h b/include/proto/pattern.h
index 91bb335..80d4ee1 100644
--- a/include/proto/pattern.h
+++ b/include/proto/pattern.h
@@ -28,7 +28,7 @@
 #include <common/standard.h>
 #include <types/pattern.h>
 
-/* parse the <text> with <expr> compliant parser. <pattern> is a context for
+/* parse the <args> with <expr> compliant parser. <pattern> is a context for
  * the current parsed acl. It must initialized at NULL:
  *
  *    struct pattern *pattern = NULL
@@ -37,11 +37,10 @@
  * patflag are a lot of 'PAT_F_*' flags pattern compatible. see
  * <types/acl.h>.
  *
- * The function returns 1 if the processing is ok, return -1 if the parser
- * fails, with <err> message filled. It returns -2 in "out of memory"
- * error case.
+ * The function returns 1 if the processing is ok, return 0
+ * if the parser fails, with <err> message filled.
  */
-int pattern_register(struct pattern_expr *expr, char *text, struct sample_storage *smp, struct pattern **pattern, int patflags, char **err);
+int pattern_register(struct pattern_expr *expr, const char **args, struct sample_storage *smp, struct pattern **pattern, int patflags, char **err);
 
 /* return the PAT_MATCH_* index for match name "name", or < 0 if not found */
 static inline int pat_find_match_name(const char *name)
@@ -69,7 +68,7 @@
 
 
 /* ignore the current line */
-int pat_parse_nothing(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_nothing(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* NB: For two strings to be identical, it is required that their lengths match */
 enum pat_match_res pat_match_str(struct sample *smp, struct pattern *pattern);
@@ -84,37 +83,37 @@
 enum pat_match_res pat_match_int(struct sample *smp, struct pattern *pattern);
 
 /* Parse an integer. It is put both in min and max. */
-int pat_parse_int(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_int(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* Parse len like an integer, but specify expected string type */
-int pat_parse_len(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_len(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* Parse an version. It is put both in min and max. */
-int pat_parse_dotted_ver(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_dotted_ver(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* Parse a range of integers delimited by either ':' or '-'. If only one
  * integer is read, it is set as both min and max.
  */
-int pat_parse_range(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_range(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* Parse a string. It is allocated and duplicated. */
-int pat_parse_str(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_str(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* Parse a hexa binary definition. It is allocated and duplicated. */
-int pat_parse_bin(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_bin(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* Parse and concatenate strings into one. It is allocated and duplicated. */
-int pat_parse_strcat(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_strcat(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* Parse a regex. It is allocated. */
-int pat_parse_reg(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_reg(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* Parse an IP address and an optional mask in the form addr[/mask].
  * The addr may either be an IPv4 address or a hostname. The mask
  * may either be a dotted mask or a number of bits. Returns 1 if OK,
  * otherwise 0.
  */
-int pat_parse_ip(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
+int pat_parse_ip(const char **text, struct pattern *pattern, int *opaque, char **err);
 
 /* always return false */
 enum pat_match_res pat_match_nothing(struct sample *smp, struct pattern *pattern);