1 files changed, 26 insertions, 2 deletions

diff --git a/database/rrdlabels.h b/src/database/rrdlabels.h
index 64a0e2384..88b35cf92 100644
--- a/database/rrdlabels.h
+++ b/src/database/rrdlabels.h
@@ -5,6 +5,16 @@
 
 #include "rrd.h"
 
+struct pattern_array_item {
+    Word_t size;
+    Pvoid_t JudyL;
+};
+
+struct pattern_array {
+    Word_t key_count;
+    Pvoid_t JudyL;
+};
+
 typedef enum __attribute__ ((__packed__)) rrdlabel_source {
     RRDLABEL_SRC_AUTO       = (1 << 0), // set when Netdata found the label by some automation
     RRDLABEL_SRC_CONFIG     = (1 << 1), // set when the user configured the label
@@ -20,7 +30,7 @@ typedef enum __attribute__ ((__packed__)) rrdlabel_source {
 
 #define RRDLABEL_FLAG_INTERNAL (RRDLABEL_FLAG_OLD | RRDLABEL_FLAG_NEW | RRDLABEL_FLAG_DONT_DELETE)
 
-size_t text_sanitize(unsigned char *dst, const unsigned char *src, size_t dst_size, unsigned char *char_map, bool utf, const char *empty, size_t *multibyte_length);
+size_t text_sanitize(unsigned char *dst, const unsigned char *src, size_t dst_size, const unsigned char *char_map, bool utf, const char *empty, size_t *multibyte_length);
 
 RRDLABELS *rrdlabels_create(void);
 void rrdlabels_destroy(RRDLABELS *labels_dict);
@@ -41,7 +51,7 @@ int rrdlabels_walkthrough_read(RRDLABELS *labels, int (*callback)(const char *na
 void rrdlabels_log_to_buffer(RRDLABELS *labels, BUFFER *wb);
 bool rrdlabels_match_simple_pattern(RRDLABELS *labels, const char *simple_pattern_txt);
 
-bool rrdlabels_match_simple_pattern_parsed(RRDLABELS *labels, SIMPLE_PATTERN *pattern, char equal, size_t *searches);
+SIMPLE_PATTERN_RESULT rrdlabels_match_simple_pattern_parsed(RRDLABELS *labels, SIMPLE_PATTERN *pattern, char equal, size_t *searches);
 int rrdlabels_to_buffer(RRDLABELS *labels, BUFFER *wb, const char *before_each, const char *equal, const char *quote, const char *between_them,
                         bool (*filter_callback)(const char *name, const char *value, RRDLABEL_SRC ls, void *data), void *filter_data,
                         void (*name_sanitizer)(char *dst, const char *src, size_t dst_size),
@@ -50,6 +60,20 @@ void rrdlabels_to_buffer_json_members(RRDLABELS *labels, BUFFER *wb);
 
 void rrdlabels_migrate_to_these(RRDLABELS *dst, RRDLABELS *src);
 void rrdlabels_copy(RRDLABELS *dst, RRDLABELS *src);
+size_t rrdlabels_common_count(RRDLABELS *labels1, RRDLABELS *labels2);
+
+struct pattern_array *pattern_array_allocate();
+struct pattern_array *
+pattern_array_add_key_value(struct pattern_array *pa, const char *key, const char *value, char sep);
+bool pattern_array_label_match(
+    struct pattern_array *pa,
+    RRDLABELS *labels,
+    char eq,
+    size_t *searches);
+struct pattern_array *pattern_array_add_simple_pattern(struct pattern_array *pa, SIMPLE_PATTERN *pattern, char sep);
+struct pattern_array *
+pattern_array_add_key_simple_pattern(struct pattern_array *pa, const char *key, SIMPLE_PATTERN *pattern);
+void pattern_array_free(struct pattern_array *pa);
 
 int rrdlabels_unittest(void);