/* Parse Bison Skeletons.
   Copyright (C) 2001  Free Software Foundation, Inc.

   This file is part of Bison, the GNU Compiler Compiler.

   Bison is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   Bison is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with Bison; see the file COPYING.  If not, write to the Free
   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.  */

#ifndef SKELETON_H_
# define SKELETON_H_

# include "parse-skel.h"

/* Initialize LOC. */
# define LOCATION_RESET(Loc)                  \
  (Loc).first_column = (Loc).first_line = 1;  \
  (Loc).last_column =  (Loc).last_line = 1;

/* Advance of NUM lines. */
# define LOCATION_LINES(Loc, Num)             \
  (Loc).last_column = 1;                      \
  (Loc).last_line += Num;

/* Restart: move the first cursor to the last position. */
# define LOCATION_STEP(Loc)                   \
  (Loc).first_column = (Loc).last_column;     \
  (Loc).first_line = (Loc).last_line;

/* Output LOC on the stream OUT. */
# define LOCATION_PRINT(Out, Loc)                               \
  if ((Loc).first_line != (Loc).last_line)                      \
    fprintf (Out, "%d.%d-%d.%d",                                \
             (Loc).first_line, (Loc).first_column,              \
             (Loc).last_line, (Loc).last_column - 1);           \
  else if ((Loc).first_column < (Loc).last_column - 1)          \
    fprintf (Out, "%d.%d-%d", (Loc).first_line,                 \
             (Loc).first_column, (Loc).last_column - 1);        \
  else                                                          \
    fprintf (Out, "%d.%d", (Loc).first_line, (Loc).first_column)


/* Pure parsers need to pass arguments to yyparse. */
typedef struct skel_control_s
{
  /* For the time being, nothing.  */
} skel_control_t;

/* From parse-skel.y. */
extern int skel_debug;
void skel_error PARAMS ((skel_control_t *control,
			 const yyltype *loc, const char *msg));
void process_skeleton PARAMS ((const char* skel));

/* From scan-skel.l. */
extern int skel__flex_debug;

/* Renamed yyin. */
extern FILE* skel_in;

# define YY_DECL \
  int skel_lex PARAMS ((yystype *yylval, yyltype *yylloc))
YY_DECL;

#endif SKELETON_H_