* Add expression parser utility

* Temporaly switch off expression optimizer as it should be reworked

1 files changed, 50 insertions, 0 deletions

diff --git a/utils/expression_parser.c b/utils/expression_parser.c
new file mode 100644
index 000000000..fa0237f3a
--- /dev/null
+++ b/utils/expression_parser.c
@@ -0,0 +1,50 @@
+#include "../src/config.h"
+#include "../src/main.h"
+#include "../src/cfg_file.h"
+#include "../src/expressions.h"
+
+int 
+main (int argc, char **argv)
+{
+	memory_pool_t *pool;
+	struct expression *cur;
+	char *line, *outstr;
+	int r, s;
+	char buf[BUFSIZ];
+
+	pool = memory_pool_new (memory_pool_get_size ());
+	
+	line = fgets (buf, sizeof (buf), stdin);
+	while (line) {
+		s = strlen (line);
+		if (buf[s - 1] == '\n') {
+			buf[s - 1] = '\0';
+		}
+		if (buf[s - 2] == '\r') {
+			buf[s - 2] = '\0';
+		}
+
+		r = 0;
+		cur = parse_expression (pool, line);
+		s = strlen (line) * 4;
+		outstr = memory_pool_alloc (pool, s);
+		while (cur) {
+			if (cur->type == EXPR_REGEXP) {
+				r += snprintf (outstr + r, s - r, "OP:%s ", (char *)cur->content.operand);
+			} else if (cur->type == EXPR_STR) {
+				r += snprintf (outstr + r, s - r, "S:%s ", (char *)cur->content.operand);
+
+			} else if (cur->type == EXPR_FUNCTION) {
+				r += snprintf (outstr + r, s - r, "F:%s ", ((struct expression_function *)cur->content.operand)->name);
+			}
+			else {
+				r += snprintf (outstr + r, s - r, "O:%c ", cur->content.operation);
+			}
+			cur = cur->next;
+		}
+		printf ("Parsed expression: '%s' -> '%s'\n", line, outstr);
+		line = fgets (buf, sizeof (buf), stdin);
+	}
+
+	memory_pool_delete (pool);
+}