X-Git-Url: https://git.tokkee.org/?p=sysdb.git;a=blobdiff_plain;f=src%2Finclude%2Fparser%2Fparser.h;h=a820bbef30a426cceb595224aca547e86ba3643e;hp=0a7c7206d24a156bb1706003641fadc217076f84;hb=HEAD;hpb=1ea57919cda96d83e7625999019269dffefdb329

diff --git a/src/include/parser/parser.h b/src/include/parser/parser.h
index 0a7c720..a820bbe 100644
--- a/src/include/parser/parser.h
+++ b/src/include/parser/parser.h
@@ -28,9 +28,6 @@
 #ifndef SDB_PARSER_PARSER_H
 #define SDB_PARSER_PARSER_H 1
 
-/* TODO: move SDB_PARSE_* constants here as well */
-#include "frontend/parser.h"
-
 #include "core/store.h"
 #include "parser/ast.h"
 #include "utils/llist.h"
@@ -40,6 +37,18 @@
 extern "C" {
 #endif
 
+/* parser modes */
+enum {
+	/* parser accepts any command statement */
+	SDB_PARSE_DEFAULT = 0,
+
+	/* parser accepts any conditional statement */
+	SDB_PARSE_COND    = 1 << 1,
+
+	/* parser accepts any arithmetic expression */
+	SDB_PARSE_ARITH   = 1 << 2,
+};
+
 /*
  * sdb_parser_parse:
  * Parse the specified query of the specified length. If len is a negative
@@ -56,21 +65,25 @@ sdb_parser_parse(const char *query, int len, sdb_strbuf_t *errbuf);
 
 /*
  * sdb_parser_parse_conditional:
- * Parse a single conditional expression. This function is similar to
- * sdb_parse_parse but will only accept a single conditional expression. The
- * return value is guaranteed to satisfy SDB_AST_IS_LOGICAL().
+ * Parse a single conditional expression which can be evaluated in the
+ * specified context (any valid store object type). This function is similar
+ * to sdb_parse_parse but will only accept a single conditional expression.
+ * The return value is guaranteed to satisfy SDB_AST_IS_LOGICAL().
  */
 sdb_ast_node_t *
-sdb_parser_parse_conditional(const char *cond, int len, sdb_strbuf_t *errbuf);
+sdb_parser_parse_conditional(int context,
+		const char *cond, int len, sdb_strbuf_t *errbuf);
 
 /*
  * sdb_parser_parse_arith:
- * Parse a single arithmetic expression. This function is similar to
- * sdb_parse_parse but will only accept a single arithmetic expression. The
+ * Parse a single arithmetic expression which can be evaluated in the
+ * specified context (any valid store object type). This function is similar
+ * to sdb_parse_parse but will only accept a single arithmetic expression. The
  * return value is guaranteed to satisfy SDB_AST_IS_ARITHMETIC().
  */
 sdb_ast_node_t *
-sdb_parser_parse_arith(const char *expr, int len, sdb_strbuf_t *errbuf);
+sdb_parser_parse_arith(int context,
+		const char *expr, int len, sdb_strbuf_t *errbuf);
 
 /*
  * sdb_parser_analyze:
@@ -84,6 +97,34 @@ sdb_parser_parse_arith(const char *expr, int len, sdb_strbuf_t *errbuf);
 int
 sdb_parser_analyze(sdb_ast_node_t *node, sdb_strbuf_t *errbuf);
 
+/*
+ * sdb_parser_analyze_conditional:
+ * Semantical analysis of a conditional node in the specified context (any
+ * valid store object type).
+ *
+ * Returns:
+ *  - 0 on success
+ *  - a negative value else; an error message will be written to the provided
+ *    error buffer
+ */
+int
+sdb_parser_analyze_conditional(int context,
+		sdb_ast_node_t *node, sdb_strbuf_t *errbuf);
+
+/*
+ * sdb_parser_analyze_arith:
+ * Semantical analysis of an arithmetic node in the specified context (any
+ * valid store object type).
+ *
+ * Returns:
+ *  - 0 on success
+ *  - a negative value else; an error message will be written to the provided
+ *    error buffer
+ */
+int
+sdb_parser_analyze_arith(int context,
+		sdb_ast_node_t *node, sdb_strbuf_t *errbuf);
+
 /*
  * Low-level interface.
  */