#ifndef CHARSET_H
#define CHARSET_H

#include <stddef.h>

/*
 * Convert input (UTF-8, UTF-16 with BOM, or ISO-8859-1) to ISO-8859-1.
 * Unmappable characters (> U+00FF) are replaced with '?'.
 * Returns number of bytes written (excluding null terminator).
 * Output is always null-terminated.
 */
int to_iso8859_1(const unsigned char *in, size_t in_len,
                 char *out, size_t out_size);

#endif