lib/linebuffer.h

   1 /* linebuffer.h -- declarations for reading arbitrarily long lines
   2    Copyright (C) 1986, 1991 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17 \f
  18 /* A `struct linebuffer' holds a line of text. */
  19
  20 struct linebuffer
  21 {
  22   long size;                    /* Allocated. */
  23   long length;                  /* Used. */
  24   char *buffer;
  25 };
  26
  27 #undef PARAMS
  28 #if defined (__STDC__) && __STDC__
  29 # define PARAMS(Args) Args
  30 #else
  31 # define PARAMS(Args) ()
  32 #endif
  33
  34 /* Initialize linebuffer LINEBUFFER for use. */
  35 void initbuffer PARAMS ((struct linebuffer *linebuffer));
  36
  37 /* Read an arbitrarily long line of text from STREAM into LINEBUFFER.
  38    Remove any newline.  Does not null terminate.
  39    Return LINEBUFFER, except at end of file return 0.  */
  40 struct linebuffer *readline PARAMS ((struct linebuffer *linebuffer,
  41                                      FILE *stream));
  42
  43 /* Free linebuffer LINEBUFFER and its data, all allocated with malloc. */
  44 void freebuffer PARAMS ((struct linebuffer *));