/* linebuffer.h -- declarations for reading arbitrarily long lines
   Copyright (C) 1986, 1991, 1998, 1999 Free Software Foundation, Inc.

   This program 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.

   This program 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 this program; if not, write to the Free Software Foundation,
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#if !defined LINEBUFFER_H
# define LINEBUFFER_H

/* A `struct linebuffer' holds a line of text. */

struct linebuffer
{
  size_t size;			/* Allocated. */
  size_t length;		/* Used. */
  char *buffer;
};

# ifndef PARAMS
#  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
#   define PARAMS(Args) Args
#  else
#   define PARAMS(Args) ()
#  endif
# endif

/* Initialize linebuffer LINEBUFFER for use. */
void initbuffer PARAMS ((struct linebuffer *linebuffer));

/* Read an arbitrarily long line of text from STREAM into LINEBUFFER.
   Keep the newline; append a newline if it's the last line of a file
   that ends in a non-newline character.  Do not null terminate.
   Return LINEBUFFER, except at end of file return 0.  */
struct linebuffer *readline PARAMS ((struct linebuffer *linebuffer,
				     FILE *stream));

/* Free linebuffer LINEBUFFER and its data, all allocated with malloc. */
void freebuffer PARAMS ((struct linebuffer *));

#endif /* LINEBUFFER_H */