4.3BSD - /usr/src/new/B/src/bed/tabl.h

   1: /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1984. */
   2: /* $Header: tabl.h,v 2.0 84/06/18 15:47:24 guido Exp $ */
   3: 
   4: /*
   5:  * B editor -- Grammar table structure.
   6:  */
   7: 
   8: 
   9: typedef char classelem;
  10:     /* change into short if symbol or lexical values can exceed 127! */
  11: 
  12: typedef classelem *classptr;
  13: 
  14: struct classinfo {
  15:     classptr c_class; /* List of possible classes */
  16:         /* The following fields are initialized dynamically */
  17:     classptr c_insert; /* List of pairs (char, class) for insertion */
  18:     classptr c_append; /* Ditto for append to child already there */
  19:     classptr c_join; /* Ditto for join of child with new node */
  20: };
  21: 
  22: #define MAXCHILD 4 /* Max. # of children per node. */
  23: 
  24: 
  25: struct table {
  26:     short r_symbol; /* Redundant, used for checking consistency */
  27:     string r_name;
  28:     string r_repr[MAXCHILD+1];
  29:         /* There are entries [0..nch] inclusive. */
  30:     struct classinfo *r_class[MAXCHILD];
  31:         /* Must be indexed with [ich-1] !! */
  32:     node r_node;
  33: };
  34: 
  35: extern struct table *table;
  36: 
  37: #define TABLEN (Hole+1)
  38: 
  39: extern char code_array[];
  40: extern char invcode_array[];
  41: extern int lastcode;
  42: 
  43: #define Code(c) code_array[c]
  44: #define Invcode(code) invcode_array[code]

Defined struct's

Defined typedef's

Defined macros

Usage of this include