Split expandos from special-vars.c to expandos.c. Added list of signals

to each expando that can might change it's value.


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@964 dbcabf3a-b0e7-0310-adc4-f8d773084564

src/core/expandos.h

@@ -0,0 +1,36 @@
+#ifndef __EXPANDOS_H
+#define __EXPANDOS_H
+
+#include "servers.h"
+
+/* first argument of signal must match to active .. */
+typedef enum {
+        EXPANDO_ARG_NONE,
+        EXPANDO_ARG_SERVER,
+        EXPANDO_ARG_SERVER2, /* second argument.. */
+        EXPANDO_ARG_WINDOW,
+	EXPANDO_ARG_WINDOW_ITEM,
+
+	EXPANDO_NEVER /* special: expando never changes */
+} ExpandoArg;
+
+typedef char* (*EXPANDO_FUNC)
+	(SERVER_REC *server, void *item, int *free_ret);
+
+/* Create expando - overrides any existing ones.
+   ... = signal, type, ..., NULL - list of signals that might change the
+   value of this expando */
+void expando_create(const char *key, EXPANDO_FUNC func, ...);
+/* Add new signal to expando */
+void expando_add_signal(const char *key, const char *signal, ExpandoArg arg);
+/* Destroy expando */
+void expando_destroy(const char *key, EXPANDO_FUNC func);
+
+/* internal: */
+EXPANDO_FUNC expando_find_char(char chr);
+EXPANDO_FUNC expando_find_long(const char *key);
+
+void expandos_init(void);
+void expandos_deinit(void);
+
+#endif