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/*
* Copyright 2020-2025 Fabian Groffen <grobian@gentoo.org>
*
* 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 of the License, 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 in the file COPYING for more details.
*/
#ifndef ICONVSTREAM_H
#define ICONVSTREAM_H 1
#include <fstream>
#include <string>
#include <unistd.h>
#include <iconv.h>
using std::string;
const char endl = '\n';
const char flush = '\0';
class iconvstream {
public:
iconvstream():
open_err(0),
fd_is(-1),
fd_os(-1)
{
}
~iconvstream()
{
if (find_tokens_c_str_buf != nullptr)
delete[] find_tokens_c_str_buf;
}
void open_is(const char *url, const char *encoding);
void open_is(const string &url, const char *encoding);
void close_is(void);
void open_os(const char *url, const char *encoding);
void open_os(const string &url, const char *encoding);
void close_os(void);
int is_open() const
{
return fd_is >= 0;
}
int os_open() const
{
return fd_os >= 0;
}
void close()
{
close_is();
close_os();
}
bool os_isatty() const
{
return fd_os >= 0 ? (isatty(fd_os) ? true : false) : false;
}
const char *open_error_msg() const;
int get();
int write(const char *inp, size_t len);
iconvstream &operator<<(const char *inp);
iconvstream &operator<<(const string &inp);
iconvstream &operator<<(char inp);
private:
const char* find_tokens(char*, size_t, const char**);
char *find_tokens_c_str_buf = nullptr;
const char *open_err;
const char *encoding;
int fd_is;
iconv_t iconv_handle_is = nullptr;
unsigned char *readbuf = nullptr;
size_t readbufsze;
size_t readbuflen;
size_t readbufpos;
unsigned char *rutf8buf = nullptr;
size_t rutf8bufsze;
size_t rutf8buflen;
size_t rutf8bufpos;
int fd_os;
iconv_t iconv_handle_os = nullptr;
unsigned char *writebuf = nullptr;
size_t writebufsze;
size_t writebuflen;
size_t writebufpos;
unsigned char *wutf8buf = nullptr;
size_t wutf8bufsze;
size_t wutf8buflen;
size_t wutf8bufpos;
};
#endif
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