BSD 4_1c_2 release

[unix-history] / usr / src / ucb / pascal / utilities / pc3.h

   /* Copyright (c) 1980 Regents of the University of California */

   /*  static  char sccsid[] = "@(#)pc3.h 1.5 7/29/82"; */

   /*
    *  a symbol table entry.
    */
struct symbol {
   char                *name;                  /* pointer to string table */
   short               desc;                   /* symbol description */
   int                 lookup;                 /* whether new or old */
   union {                                     /* either */
       struct {                                /*   for a symbol, */
           struct symbol       *fromp;         /*     its defining .p file */
           struct symbol       *fromi;         /*     its defining .i file */
           long                iline;          /*     the .i file line */
           struct symbol       *rfilep;        /*     its resolving file */
           long                rline;          /*     resolving file line */
       }               sym_str;
       time_t          modtime;                /*   for a file, its st_mtime */
   }                   sym_un;
};

   /*
    *  struct for an argument .o file.
    */
struct fileinfo {
   FILE                *file;
   char                *name;
   time_t              modtime;
   off_t               nextoffset;
};

   /*
    *  old archive magic for error detection.
    */
#define OARMAG  0177545

   /*
    *  this is used to trim pointers into the range of a mod of a prime.
    */
#define SHORT_ABS( n )  ( n & 077777 )

   /*
    *  a prime number which gets sizeof( struct symboltableinfo )
    *  up to a multiple of BUFSIZ.
    */
#define SYMBOLPRIME     1021

   /*
    *  number of entries used in this symbol table,
    *  a chain to the next symbol table,
    *  and the entries. (pointers to struct symbols.)
    */
struct symboltableinfo {
   long                        used;
   struct symboltableinfo      *chain;
   struct symbol               *entry[ SYMBOLPRIME ];
};

   /*
    *  if new struct symbols are needed,
    *  allocate this much space and hack it up into struct symbols.
    */
#define SYMBOLALLOC     BUFSIZ

   /*
    *  a prime number which gets sizeof( struct stringtableinfo )
    *  up to a multiple of BUFSIZ.
    */
#define STRINGPRIME     1021

   /*
    *  number of entries used in this string table,
    *  a chain to the next string table,
    *  and the entries. (pointers to the character table.)
    */
struct stringtableinfo {
   long                        used;
   struct stringtableinfo      *chain;
   char                        *entry[ STRINGPRIME ];
};

   /*
    *  if more character table space is needed,
    *  allocate this much and hack it up into strings.
    */
#define CHARALLOC       BUFSIZ

   /*
    *  uninitialized pointer
    */
#define NIL     0

   /*
    *  an enumeration for error types
    */
#define NONE    0
#define WARNING 1
#define ERROR   2
#define FATAL   3

   /*
    *  an enumeration for lookups
    */
#define NEW     0
#define OLD     1

   /*
    *  booleans
    */
#define BOOL    int
#define FALSE   0
#define TRUE    1

   /*
    *  function types.
    */
struct symbol   *entersymbol();
struct symbol   *symbolalloc();
long            stringhash();
char            *enterstring();
char            *charalloc();
BOOL            nextelement();
time_t          mtime();
char            *classify();
char            *article();