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

   1: /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1984. */
   2: /* $Header: gram.h,v 2.0 84/06/18 15:46:55 guido Exp $ */
   3: 
   4: /*
   5:  * B editor -- Grammar symbols.
   6:  */
   7: 
   8: /*
   9:  * Values used in "tabl.c" but also publicly.
  10:  */
  11: 
  12: #define Rootsymbol  00
  13: #define Suggestion  97
  14: #define Optional    98
  15: #define Hole        99
  16: 
  17: 
  18: /*
  19:  * Ditto for "lexi.c".
  20:  */
  21: 
  22: #define LEXICAL 100
  23: 
  24: /*
  25:  * Routines defined in "gram.c".
  26:  */
  27: 
  28: string *noderepr();
  29: node gram();
  30: node suggestion();
  31: node variable();
  32: string symname();
  33: 
  34: /*
  35:  * Macros for oft-used funtion.
  36:  */
  37: 
  38: #define Fwidth(str) ((str) ? fwidth(str) : 0)
  39: 
  40: #define Fw_zero(str) (!(str) || index("\b\t", (str)[0]))
  41: #define Fw_positive(str) ((str) && (str)[0] >= ' ')
  42: #define Fw_negative(str) ((str) && (str)[0] == '\n')

Defined macros

Usage of this include