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/*

 * Copyright (c) 2001-2004 Jakub Jermar

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in the

 *   documentation and/or other materials provided with the distribution.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/** @addtogroup generic

 * @{

 */

/** @file

 */

#ifndef KERN_STRING_H_

#define KERN_STRING_H_

#include <typedefs.h>

/**< Common Unicode characters */

#define U_SPECIAL      '?'

#define U_LEFT_ARROW   0x2190

#define U_UP_ARROW     0x2191

#define U_RIGHT_ARROW  0x2192

#define U_DOWN_ARROW   0x2193

#define U_PAGE_UP      0x21de

#define U_PAGE_DOWN    0x21df

#define U_HOME_ARROW   0x21f1

#define U_END_ARROW    0x21f2

#define U_NULL         0x2400

#define U_ESCAPE       0x241b

#define U_DELETE       0x2421

#define U_CURSOR       0x2588

#define U_BOM          0xfeff

/**< No size limit constant */

#define STR_NO_LIMIT  ((size_t) -1)

/**< Maximum size of a string containing cnt characters */

#define STR_BOUNDS(cnt)  (cnt << 2)

extern wchar_t str_decode(const char *str, size_t *offset, size_t sz);

extern int chr_encode(wchar_t ch, char *str, size_t *offset, size_t sz);

extern size_t str_size(const char *str);

extern size_t wstr_size(const wchar_t *str);

extern size_t str_lsize(const char *str, count_t max_len);

extern size_t wstr_lsize(const wchar_t *str, count_t max_len);

extern count_t str_length(const char *str);

extern count_t wstr_length(const wchar_t *wstr);

extern count_t str_nlength(const char *str, size_t size);

extern count_t wstr_nlength(const wchar_t *str, size_t size);

extern bool ascii_check(wchar_t ch);

extern bool chr_check(wchar_t ch);

extern int str_cmp(const char *s1, const char *s2);

extern int str_lcmp(const char *s1, const char *s2, count_t max_len);

extern void str_ncpy(char *dst, const char *src, size_t size);

extern void wstr_nstr(char *dst, const wchar_t *src, size_t size);

extern const char *str_chr(const char *str, wchar_t ch);

extern bool wstr_linsert(wchar_t *str, wchar_t ch, count_t pos, count_t max_pos);

extern bool wstr_remove(wchar_t *str, count_t pos);

#endif

/** @}

 */