#include <ctype.h>

#if PIKA_STRING_UTF8_ENABLE

int _valid_utf8(const char* string, int length);
int _utf8_get(const char* string, int length, int at, char* out_buf);
int _utf8_get_offset(const char* string, int length, int at, int* out_char_len);
int _utf8_strlen(const char* string, int length);
int __str_repl(PikaObj* self,
               char* str,
               int str_len,
               int repl_at,
               int repl_len,
               char* val,
               int val_len);

int __utf8_to_utf32_LE_withBOM(const char* utf8, int len, char* out_buf);
int __utf8_to_utf32_LE_noBOM(const char* utf8, int len, char* out_buf);
int __utf8_to_utf32_LE_noBOM_get_size(const char* utf8, int len);

int __utf8_to_utf16_LE_withBOM(const char* utf8, int len, char* out_buf);
int __utf8_to_utf16_LE_noBOM(const char* utf8, int len, char* out_buf);
int __utf8_to_utf16_LE_noBOM_get_size(const char* utf8, int len);
Arg* _str_encode(char* str, char* encoding);

#endif