-bool psi_cpp_preprocess(struct psi_parser *P, struct psi_cpp_data *cpp);
-bool psi_cpp_if(struct psi_cpp_exp *exp, HashTable *defs, struct psi_data *D);
-bool psi_cpp_defined(struct psi_cpp_data *cpp, struct psi_token *tok);
-void psi_cpp_define(struct psi_cpp_data *cpp, struct psi_cpp_macro_decl *decl);
-bool psi_cpp_undef(struct psi_cpp_data *cpp, struct psi_token *tok);
+struct psi_cpp *psi_cpp_init(struct psi_parser *parser);
+bool psi_cpp_load_defaults(struct psi_cpp *cpp);
+bool psi_cpp_process(struct psi_cpp *cpp, struct psi_plist **tokens);
+void psi_cpp_free(struct psi_cpp **cpp_ptr);
+
+bool psi_cpp_if(struct psi_cpp *cpp, struct psi_cpp_exp *exp);
+bool psi_cpp_defined(struct psi_cpp *cpp, struct psi_token *tok);
+void psi_cpp_define(struct psi_cpp *cpp, struct psi_cpp_macro_decl *decl);
+bool psi_cpp_undef(struct psi_cpp *cpp, struct psi_token *tok);
+
+#define PSI_CPP_INCLUDE 0x0
+#define PSI_CPP_INCLUDE_NEXT 0x1
+#define PSI_CPP_INCLUDE_ONCE 0x2
+
+bool psi_cpp_include(struct psi_cpp *cpp, const char *file, unsigned flags);