Rework project structure, remove trash files.

1 files changed, 133 insertions, 0 deletions

diff --git a/src/libmime/expressions.h b/src/libmime/expressions.h
new file mode 100644
index 000000000..954cc74f7
--- /dev/null
+++ b/src/libmime/expressions.h
@@ -0,0 +1,133 @@
+/**
+ * @file expressions.h
+ * Rspamd expressions API
+ */
+
+#ifndef RSPAMD_EXPRESSIONS_H
+#define RSPAMD_EXPRESSIONS_H
+
+#include "config.h"
+#include <lua.h>
+
+struct rspamd_task;
+struct rspamd_regexp;
+
+/**
+ * Rspamd expression function
+ */
+struct expression_function {
+	gchar *name;													/**< name of function								*/
+	GList *args;												/**< its args										*/
+};
+
+/**
+ * Function's argument
+ */
+struct expression_argument {
+	enum {
+		EXPRESSION_ARGUMENT_NORMAL,
+		EXPRESSION_ARGUMENT_BOOL,
+		EXPRESSION_ARGUMENT_EXPR,
+	} type;														/**< type of argument (text or other function)		*/
+	void *data;													/**< pointer to its data							*/
+};
+
+/** 
+ * Logic expression 
+ */
+struct expression {
+	enum { 
+		EXPR_REGEXP,
+		EXPR_OPERATION, 
+		EXPR_FUNCTION, 
+		EXPR_STR, 
+		EXPR_REGEXP_PARSED,
+	} type;														/**< expression type								*/
+	union {
+		void *operand;
+		gchar operation;
+	} content;													/**< union for storing operand or operation code 	*/
+	const gchar *orig;											/**< original line									*/
+	struct expression *next;									/**< chain link										*/
+};
+
+typedef gboolean (*rspamd_internal_func_t)(struct rspamd_task *, GList *args, void *user_data);
+
+/**
+ * Parse regexp line to regexp structure
+ * @param pool memory pool to use
+ * @param line incoming line
+ * @return regexp structure or NULL in case of error
+ */
+struct rspamd_regexp* parse_regexp (rspamd_mempool_t *pool, const gchar *line, gboolean raw_mode);
+
+/**
+ * Parse composites line to composites structure (eg. "SYMBOL1&SYMBOL2|!SYMBOL3")
+ * @param pool memory pool to use
+ * @param line incoming line
+ * @return expression structure or NULL in case of error
+ */
+struct expression* parse_expression (rspamd_mempool_t *pool, gchar *line);
+
+/**
+ * Call specified fucntion and return boolean result
+ * @param func function to call
+ * @param task task object
+ * @param L lua specific state
+ * @return TRUE or FALSE depending on function result
+ */
+gboolean call_expression_function (struct expression_function *func, struct rspamd_task *task, lua_State *L);
+
+/**
+ * Register specified function to rspamd internal functions list
+ * @param name name of function
+ * @param func pointer to function
+ */
+void register_expression_function (const gchar *name, rspamd_internal_func_t func, void *user_data);
+
+/**
+ * Add regexp to regexp cache
+ * @param line symbolic representation
+ * @param pointer regexp data
+ */
+void re_cache_add (const gchar *line, void *pointer, rspamd_mempool_t *pool);
+
+/**
+ * Check regexp in cache
+ * @param line symbolic representation
+ * @return pointer to regexp data or NULL if regexp is not found
+ */
+void * re_cache_check (const gchar *line, rspamd_mempool_t *pool);
+
+/**
+ * Remove regexp from regexp cache
+ * @param line symbolic representation
+ */
+void re_cache_del (const gchar *line, rspamd_mempool_t *pool);
+
+/**
+ * Add regexp to regexp task cache
+ * @param task task object
+ * @param pointer regexp data
+ * @param result numeric result of this regexp
+ */
+void task_cache_add (struct rspamd_task *task, struct rspamd_regexp *re, gint32 result);
+
+/**
+ * Check regexp in cache
+ * @param task task object
+ * @param pointer regexp data
+ * @return numeric result if value exists or -1 if not
+ */
+gint32 task_cache_check (struct rspamd_task *task, struct rspamd_regexp *re);
+
+/**
+ * Parse and return a single function argument for a function (may recurse)
+ * @param expr expression structure that represents function's argument
+ * @param task task object
+ * @param want_string return NULL if argument is not a string
+ * @return expression argument structure or NULL if failed
+ */
+struct expression_argument *get_function_arg (struct expression *expr, struct rspamd_task *task, gboolean want_string);
+
+#endif