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/*
* buffer.h - read line by line with conversion of EOL types
*
* Copyright (c) 1988-1993 Miguel Santana
* Copyright (c) 1995-1999 Akim Demaille, Miguel Santana
*/
/*
* This file is part of a2ps.
*
* 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 3, 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; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* $Id: buffer.h,v 1.1.1.1.2.1 2007/12/29 01:58:35 mhatta Exp $
*/
#ifndef _BUFFER_H_
#define _BUFFER_H_
#include "xobstack.h"
/****************************************************************/
/* buffer_t Service routines */
/****************************************************************/
/*
* How the eol should be handled
*/
enum eol_e
{
eol_r, /* \r only */
eol_n, /* \n */
eol_rn, /* \r\n */
eol_nr, /* \n\r */
eol_auto /* Any of the previous */
};
const char * eol_to_string PARAMS ((enum eol_e eol));
enum eol_e option_string_to_eol PARAMS ((const char * option,
const char * arg));
/*
* The buffer structure, which encloses a lower case version to
* speed up case insensitive parsing
* There are two types:
* - buf != NULL : input comes from stream_string, read line by line.
* - stream != NULL : input comes from stream, read line by line.
* - both non NULL : first read buf, then stream.
*
*/
typedef struct buffer_s
{
const uchar * buf; /* != 0 -> buffer on a string */
size_t bufsize; /* size of buf */
size_t bufoffset; /* Used when a buffer string */
FILE * stream; /* != 0 -> a buffer on a stream */
bool pipe_p; /* true -> stream has been popened */
uchar *content; /* Exactly what is read */
enum eol_e eol; /* What is an end of line? */
bool lower_case;
uchar * value; /* if LOWER_CASE, then lower case of content */
size_t line; /* Num of the current line */
size_t allocsize; /* Used to know how big lower_case is */
size_t len;
size_t curr;
struct obstack obstack;
} buffer_t;
void buffer_stream_set PARAMS ((buffer_t * buffer,
FILE * stream, enum eol_e eol));
void buffer_pipe_set PARAMS ((buffer_t * buffer,
FILE * stream, enum eol_e eol));
void buffer_string_set PARAMS ((buffer_t * buffer,
const uchar * string, enum eol_e eol));
void buffer_buffer_set PARAMS ((buffer_t * buffer,
const uchar * buf, size_t bufsize,
enum eol_e eol));
void buffer_set_lower_case PARAMS ((buffer_t * buffer, bool lower_case));
void buffer_self_print PARAMS ((buffer_t * buffer, FILE * stream));
void buffer_release PARAMS ((buffer_t * buffer));
void buffer_get PARAMS ((buffer_t * buffer));
void buffer_sample_get PARAMS ((buffer_t * buffer, const char * filename));
void buffer_save PARAMS ((buffer_t * buffer, const char * filename));
#define buffer_is_empty(Buf) (Buf->curr >= Buf->len)
#endif
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