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#ifndef KERN_STRING_H_
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#ifndef KERN_STRING_H_
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#define KERN_STRING_H_
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#define KERN_STRING_H_
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#include <typedefs.h>
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#include <typedefs.h>
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/**< Common Unicode characters */
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#define UTF8_NO_LIMIT  ((index_t) -1)
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#define U_SPECIAL      '?'
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#define U_LEFT_ARROW   0x2190
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#define U_UP_ARROW     0x2191
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#define U_RIGHT_ARROW  0x2192
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extern char invalch;
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#define U_DOWN_ARROW   0x2193
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extern wchar_t utf8_decode(const char *str, index_t *index, index_t limit);
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extern bool utf8_encode(const wchar_t ch, char *str, index_t *index, index_t limit);
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extern size_t utf8_count_bytes(const char *str, count_t count);
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extern bool ascii_check(const wchar_t ch);
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#define U_PAGE_UP      0x21de
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extern bool unicode_check(const wchar_t ch);
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#define U_PAGE_DOWN    0x21df
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extern size_t strlen(const char *str);
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#define U_HOME_ARROW   0x21f1
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extern size_t strlen_utf8(const char *str);
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#define U_END_ARROW    0x21f2
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extern size_t strlen_utf32(const wchar_t *str);
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extern int strcmp(const char *src, const char *dst);
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#define U_NULL         0x2400
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extern int strncmp(const char *src, const char *dst, size_t len);
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#define U_ESCAPE       0x241b
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extern void strncpy(char *dest, const char *src, size_t len);
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#define U_DELETE       0x2421
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#define U_CURSOR       0x2588
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#define U_BOM          0xfeff
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/**< No size limit constant */
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#define STR_NO_LIMIT  ((size_t) -1)
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/**< Maximum size of a string containing cnt characters */
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#define STR_BOUNDS(cnt)  (cnt << 2)
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extern wchar_t str_decode(const char *str, size_t *offset, size_t sz);
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extern int chr_encode(wchar_t ch, char *str, size_t *offset, size_t sz);
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extern size_t str_size(const char *str);
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extern size_t wstr_size(const wchar_t *str);
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extern size_t str_lsize(const char *str, count_t max_len);
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extern size_t wstr_lsize(const wchar_t *str, count_t max_len);
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extern count_t str_length(const char *str);
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extern count_t wstr_length(const wchar_t *wstr);
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extern count_t str_nlength(const char *str, size_t size);
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extern count_t wstr_nlength(const wchar_t *str, size_t size);
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extern bool ascii_check(wchar_t ch);
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extern bool chr_check(wchar_t ch);
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extern int str_cmp(const char *s1, const char *s2);
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extern int str_lcmp(const char *s1, const char *s2, count_t max_len);
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extern void str_cpy(char *dest, size_t size, const char *src);
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extern void str_ncpy(char *dest, size_t size, const char *src, size_t n);
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extern void wstr_nstr(char *dst, const wchar_t *src, size_t size);
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extern char *strchr(const char *s, int i);
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extern const char *str_chr(const char *str, wchar_t ch);
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extern bool wstr_linsert(wchar_t *str, wchar_t ch, count_t pos, count_t max_pos);
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extern bool wstr_remove(wchar_t *str, count_t pos);
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */