/* $Header$ */ /* PREPROCESSOR: DEFINITION OF MACRO DESCRIPTOR */ #include "nopp.h" #ifndef NOPP /* The flags of the mc_flag field of the macro structure. Note that these flags can be set simultaneously. */ #define NOFLAG 0 /* no special flags */ #define FUNC 01 /* function attached */ #define PREDEF 02 /* predefined macro */ #define FORMALP 0200 /* mask for creating macro formal parameter */ /* The macro descriptor is very simple, except the fact that the mc_text, which points to the replacement text, contains the non-ascii characters \201, \202, etc, indicating the position of a formal parameter in this text. */ struct macro { struct macro *next; char * mc_text; /* the replacement text */ int mc_nps; /* number of formal parameters */ int mc_length; /* length of replacement text */ char mc_flag; /* marking this macro */ }; /* allocation definitions of struct macro */ /* ALLOCDEF "macro" */ extern char *st_alloc(); extern struct macro *h_macro; #define new_macro() ((struct macro *) \ st_alloc((char **)&h_macro, sizeof(struct macro))) #define free_macro(p) st_free(p, h_macro, sizeof(struct macro)) /* `token' numbers of keywords of command-line processor */ #define K_UNKNOWN 0 #define K_DEFINE 1 #define K_ELIF 2 #define K_ELSE 3 #define K_ENDIF 4 #define K_IF 5 #define K_IFDEF 6 #define K_IFNDEF 7 #define K_INCLUDE 8 #define K_LINE 9 #define K_UNDEF 10 #endif NOPP