/* $Id$ */ /* * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands. * See the copyright notice in the ACK home directory, in the file "Copyright". */ /* PREPROCESSOR: DEFINITION OF MACRO DESCRIPTOR */ /* 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 NOREPLACE 02 /* don't replace */ #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 */ int mc_count; /* # of "concurrent" invocations*/ char mc_flag; /* marking this macro */ }; /* allocation definitions of struct macro */ extern char *st_alloc(); extern struct macro *h_macro; #ifdef DEBUG extern int cnt_macro; extern char *std_alloc(); #define new_macro() ((struct macro *) std_alloc((char **)&h_macro, sizeof(struct macro), 20, &cnt_macro)) #else #define new_macro() ((struct macro *) st_alloc((char **)&h_macro, sizeof(struct macro), 20)) #endif #define free_macro(p) st_free(p, &h_macro, sizeof(struct macro)) struct mlist { struct mlist *next; struct macro *m_mac; char *m_repl; int m_level; }; /* allocation definitions of struct mlist */ extern char *st_alloc(); extern struct mlist *h_mlist; #ifdef DEBUG extern int cnt_mlist; extern char *std_alloc(); #define new_mlist() ((struct mlist *) std_alloc((char **)&h_mlist, sizeof(struct mlist), 20, &cnt_mlist)) #else #define new_mlist() ((struct mlist *) st_alloc((char **)&h_mlist, sizeof(struct mlist), 20)) #endif #define free_mlist(p) st_free(p, &h_mlist, sizeof(struct mlist)) /* `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 #define K_PRAGMA 11 #define K_FILE 100 /* for dependency generator */