coreutils/lib/linebuffer.h

/* linebuffer.h -- declarations for reading arbitrarily long lines
   Copyright (C) 1986, 1991 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.  */

/* A `struct linebuffer' holds a line of text. */

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

#undef __P
#if defined (__STDC__) && __STDC__
#define	__P(x) x
#else
#define	__P(x) ()
#endif

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

/* Read an arbitrarily long line of text from STREAM into LINEBUFFER.
   Remove any newline.  Does not null terminate.
   Return LINEBUFFER, except at end of file return 0.  */
struct linebuffer *readline __P ((struct linebuffer *linebuffer, FILE *stream));

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