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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 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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#define U_DOWN_ARROW   0x2193
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#define U_PAGE_UP      0x21de
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#define U_PAGE_DOWN    0x21df
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#define U_HOME_ARROW   0x21f1
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#define U_END_ARROW    0x21f2
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#define U_NULL         0x2400
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#define U_ESCAPE       0x241b
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#define U_DELETE       0x2421
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#define U_CURSOR       0x2588
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/**< No size limit constant */
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#define STR_NO_LIMIT  ((size_t) -1)
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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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/**< Maximum size of a string containing cnt characters */
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#define STR_BOUNDS(cnt)  (cnt << 2)
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#define STR_BOUNDS(cnt)  (cnt << 2)
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extern char invalch;
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extern wchar_t str_decode(const char *str, size_t *offset, size_t sz);
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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(const wchar_t ch, char *str, size_t *offset, size_t sz);
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extern int chr_encode(const 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 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 wstr_size(const wchar_t *str);