store: Add sdb_store_query_prepare_matcher().

[sysdb.git] / src / include / frontend / parser.h

diff --git a/src/include/frontend/parser.h b/src/include/frontend/parser.h
index e1c9c6fa81e5d3b4e2b6eef91d14b8ed0fc3b3f9..766570157e426cfdab440db1b10be8ac958d8147 100644 (file)
--- a/src/include/frontend/parser.h
+++ b/src/include/frontend/parser.h
@@ -31,6 +31,7 @@
 #include "core/store.h"
 #include "frontend/connection.h"
 #include "utils/llist.h"
+#include "utils/strbuf.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -38,9 +39,14 @@ extern "C" {
 
 /* parser modes */
 enum {
+       /* parser accepts any command statement */
        SDB_PARSE_DEFAULT = 0,
+
+       /* parser accepts any conditional statement */
        SDB_PARSE_COND    = 1 << 1,
-       SDB_PARSE_EXPR    = 1 << 2,
+
+       /* parser accepts any arithmetic expression */
+       SDB_PARSE_ARITH   = 1 << 2,
 };
 
 /* YY_EXTRA data */
@@ -50,6 +56,9 @@ typedef struct {
 
        /* parser mode */
        int mode;
+
+       /* buffer for parser error messages */
+       sdb_strbuf_t *errbuf;
 } sdb_fe_yyextra_t;
 
 /* see yyscan_t */
@@ -65,21 +74,22 @@ int
 sdb_fe_yyparse(sdb_fe_yyscan_t scanner);
 
 sdb_store_matcher_t *
-sdb_fe_parse_matcher(const char *cond, int len);
+sdb_fe_parse_matcher(const char *cond, int len, sdb_strbuf_t *errbuf);
 
 sdb_store_expr_t *
-sdb_fe_parse_expr(const char *expr, int len);
+sdb_fe_parse_expr(const char *expr, int len, sdb_strbuf_t *errbuf);
 
 /*
  * sdb_fe_analyze:
- * Analyze a parsed node, checking for semantical errors.
+ * Analyze a parsed node, checking for semantical errors. Error messages will
+ * be written to the string buffer, if provided.
  *
  * Returns:
  *  - 0 if the node is semantically correct
  *  - a negative value else
  */
 int
-sdb_fe_analyze(sdb_conn_node_t *node);
+sdb_fe_analyze(sdb_conn_node_t *node, sdb_strbuf_t *errbuf);
 
 #ifdef __cplusplus
 } /* extern "C" */