103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Gilles Roux
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* 2003 Garrett Derner
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* 2010 Yoshihisa Uchida
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef PLUGIN_TEXT_VIEWER_READER_H
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#define PLUGIN_TEXT_VIEWER_READER_H
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/* stuff for the reading file */
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/*
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* initialize the reader module
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*
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* [In] buf
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* the start pointer of the buffer
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*
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* [In] size
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* enabled buffer size
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*
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* [Out] used_size
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* the size of the buffer which the pager uses
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*
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* return
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* true initialize success
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* false initialize failure
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*/
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bool tv_init_reader(unsigned char *buf, size_t bufsize, size_t *used_size);
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/* finalize the reader module */
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void tv_finalize_reader(void);
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/*
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* return the file size
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*
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* return
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* file size
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*
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* Note: when the file is UTF-8 file with BOM, if the encoding of the text viewer is UTF-8,
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* then file size decreases only BOM size.
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*/
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off_t tv_get_file_size(void);
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/*
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* return the whether is the end of file or not
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*
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* return
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* true EOF
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* false not EOF
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*/
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bool tv_is_eof(void);
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/*
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* return the current file position
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*
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* return
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* the current file position
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*/
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off_t tv_get_current_file_pos(void);
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/*
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* return the bufer which store text data
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*
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* [Out] bufsize
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* buffer size
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*
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* return
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* the pointer of the buffer
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*/
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const unsigned char *tv_get_buffer(ssize_t *bufsize);
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/*
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* seek to the given offset
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*
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* [In] offset
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* offset size
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*
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* [In] whence
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* SEEK_CUR seek to the current position + offset.
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* SEEK_SET seek to the offset.
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*
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* Note: whence supports SEEK_CUR and SEEK_SET only.
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*/
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void tv_seek(off_t offset, int whence);
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#endif
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