store: Added sdb_store_parse_matcher_op().

This function parses the string representation of an operator and returns a
constructor for the respective matcher.

diff --git a/src/core/store_lookup.c b/src/core/store_lookup.c
index cb3629c89eff652d34721e33bac763415a208bf0..325d67f157af587294d44e5480624d702c5bc075 100644 (file)
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
@@ -1242,6 +1242,28 @@ sdb_store_isnull_matcher(const char *attr_name)
                                MATCHER_ISNULL, attr_name));
 } /* sdb_store_isnull_matcher */
 
+sdb_store_matcher_op_cb
+sdb_store_parse_matcher_op(const char *op)
+{
+       if (! strcasecmp(op, "<"))
+               return sdb_store_cmp_lt;
+       else if (! strcasecmp(op, "<="))
+               return sdb_store_cmp_le;
+       else if (! strcasecmp(op, "="))
+               return sdb_store_cmp_eq;
+       else if (! strcasecmp(op, "!="))
+               return sdb_store_cmp_ne;
+       else if (! strcasecmp(op, ">="))
+               return sdb_store_cmp_ge;
+       else if (! strcasecmp(op, ">"))
+               return sdb_store_cmp_gt;
+       else if (! strcasecmp(op, "=~"))
+               return sdb_store_regex_matcher;
+       else if (! strcasecmp(op, "!~"))
+               return sdb_store_nregex_matcher;
+       return NULL;
+} /* sdb_store_parse_matcher_op */
+
 int
 sdb_store_parse_object_type_plural(const char *name)
 {

diff --git a/src/include/core/store.h b/src/include/core/store.h
index 5e57185ee4d8a9639cb072e1aac261c90e2fbb07..147d74555c4d68a979e01d3f96249c65b6da3212 100644 (file)
--- a/src/include/core/store.h
+++ b/src/include/core/store.h
@@ -470,6 +470,25 @@ sdb_store_regex_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
 sdb_store_matcher_t *
 sdb_store_nregex_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
 
+/*
+ * sdb_store_matcher_op_cb:
+ * Callback constructing a matcher operator.
+ */
+typedef sdb_store_matcher_t *(*sdb_store_matcher_op_cb)
+       (sdb_store_expr_t *, sdb_store_expr_t *);
+
+/*
+ * sdb_store_parse_matcher_op:
+ * Parse a matcher operator and return a constructor for the respective
+ * matcher.
+ *
+ * Returns:
+ *  - matcher operator constructor on success
+ *  - NULL else
+ */
+sdb_store_matcher_op_cb
+sdb_store_parse_matcher_op(const char *op);
+
 /*
  * sdb_store_parse_object_type_plural:
  * Parse the type name (plural) of a stored object.