src/skeleton.h

   1 /* Parse Bison Skeletons.
   2    Copyright (C) 2001  Free Software Foundation, Inc.
   3
   4    This file is part of Bison, the GNU Compiler Compiler.
   5
   6    Bison is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    Bison is distributed in the hope that it will be useful, but
  12    WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with Bison; see the file COPYING.  If not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19    02111-1307, USA.  */
  20
  21 #ifndef SKELETON_H_
  22 # define SKELETON_H_
  23
  24 # include "parse-skel.h"
  25
  26 /* Initialize LOC. */
  27 # define LOCATION_RESET(Loc)                  \
  28   (Loc).first_column = (Loc).first_line = 1;  \
  29   (Loc).last_column =  (Loc).last_line = 1;
  30
  31 /* Advance of NUM lines. */
  32 # define LOCATION_LINES(Loc, Num)             \
  33   (Loc).last_column = 1;                      \
  34   (Loc).last_line += Num;
  35
  36 /* Restart: move the first cursor to the last position. */
  37 # define LOCATION_STEP(Loc)                   \
  38   (Loc).first_column = (Loc).last_column;     \
  39   (Loc).first_line = (Loc).last_line;
  40
  41 /* Output LOC on the stream OUT. */
  42 # define LOCATION_PRINT(Out, Loc)                               \
  43   if ((Loc).first_line != (Loc).last_line)                      \
  44     fprintf (Out, "%d.%d-%d.%d",                                \
  45              (Loc).first_line, (Loc).first_column,              \
  46              (Loc).last_line, (Loc).last_column - 1);           \
  47   else if ((Loc).first_column < (Loc).last_column - 1)          \
  48     fprintf (Out, "%d.%d-%d", (Loc).first_line,                 \
  49              (Loc).first_column, (Loc).last_column - 1);        \
  50   else                                                          \
  51     fprintf (Out, "%d.%d", (Loc).first_line, (Loc).first_column)
  52
  53
  54 /* Pure parsers need to pass arguments to yyparse. */
  55 typedef struct skel_control_s
  56 {
  57   /* For the time being, nothing.  */
  58 } skel_control_t;
  59
  60 /* From parse-skel.y. */
  61 extern int skel_debug;
  62 void skel_error PARAMS ((skel_control_t *control,
  63                          const yyltype *loc, const char *msg));
  64 void process_skeleton PARAMS ((const char* skel));
  65
  66 /* From scan-skel.l. */
  67 extern int skel__flex_debug;
  68
  69 /* Renamed yyin. */
  70 extern FILE* skel_in;
  71
  72 # define YY_DECL \
  73   int skel_lex PARAMS ((yystype *yylval, yyltype *yylloc))
  74 YY_DECL;
  75
  76 #endif /* ! SKELETON_H_ */