--- /dev/null
+#ifndef PROGRAMS_H
+#define PROGRAMS_H 1
+
+#include "tac_plus.h"
+
+
+struct author_data;
+
+extern int call_pre_process TAC_ARGS((const char *string, struct author_data *data, char ***outargsp, int *outargs_cntp, char *error, int err_len));
+extern int call_post_process TAC_ARGS((const char *string, struct author_data *data, char ***outargsp, int *outargs_cntp));
+
+
+#endif /* PROGRAMS_H */