X-Git-Url: https://git.tokkee.org/?p=sysdb.git;a=blobdiff_plain;f=src%2Finclude%2Ffrontend%2Fparser.h;h=766570157e426cfdab440db1b10be8ac958d8147;hp=d78ab20bade0e726e769fc595ec9c7bc0599306d;hb=5ced2b9eb4d4def7d3ad5b1172004293e7a68e0e;hpb=4b45546f0aa53f9dac7c91a8149c19e118843195

diff --git a/src/include/frontend/parser.h b/src/include/frontend/parser.h
index d78ab20..7665701 100644
--- a/src/include/frontend/parser.h
+++ b/src/include/frontend/parser.h
@@ -29,7 +29,9 @@
 #define SDB_FRONTEND_PARSER_H 1
 
 #include "core/store.h"
+#include "frontend/connection.h"
 #include "utils/llist.h"
+#include "utils/strbuf.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -37,9 +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 */
@@ -49,6 +56,9 @@ typedef struct {
 
 	/* parser mode */
 	int mode;
+
+	/* buffer for parser error messages */
+	sdb_strbuf_t *errbuf;
 } sdb_fe_yyextra_t;
 
 /* see yyscan_t */
@@ -64,10 +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. 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_strbuf_t *errbuf);
 
 #ifdef __cplusplus
 } /* extern "C" */