stdstring.h

Go to the documentation of this file.

/* Copyright  (C) 2010-2018 The RetroArch team
 *
 * ---------------------------------------------------------------------------------------
 * The following license statement only applies to this file (stdstring.h).
 * ---------------------------------------------------------------------------------------
 *
 * Permission is hereby granted, free of charge,
 * to any person obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef __LIBRETRO_SDK_STDSTRING_H
#define __LIBRETRO_SDK_STDSTRING_H

#include <stdlib.h>
#include <stddef.h>
#include <ctype.h>
#include <string.h>
#include <boolean.h>

#include <retro_common_api.h>
#include <retro_inline.h>
#include <compat/strl.h>

RETRO_BEGIN_DECLS

static INLINE bool string_is_empty(const char *data)
{
   return (data == NULL) || (*data == '\0');
}

static INLINE bool string_is_equal(const char *a, const char *b)
{
   if (!a || !b)
      return false;
   while(*a && (*a == *b))
   {
      a++;
      b++;
   }
   return (*(const unsigned char*)a - *(const unsigned char*)b) == 0;
}

static INLINE bool string_is_not_equal(const char *a, const char *b)
{
   return !string_is_equal(a, b);
}

#define string_add_pair_open(s, size)    strlcat((s), " (", (size))
#define string_add_pair_close(s, size)   strlcat((s), ")",  (size))
#define string_add_bracket_open(s, size) strlcat((s), "{",  (size))
#define string_add_bracket_close(s, size) strlcat((s), "}",  (size))
#define string_add_single_quote(s, size) strlcat((s), "'",  (size))
#define string_add_quote(s, size) strlcat((s), "\"",  (size))
#define string_add_colon(s, size) strlcat((s), ":",  (size))
#define string_add_glob_open(s, size) strlcat((s), "glob('*",  (size))
#define string_add_glob_close(s, size) strlcat((s), "*')",  (size))

static INLINE void string_add_between_pairs(char *s, const char *str,
      size_t size)
{
   string_add_pair_open(s, size);
   strlcat(s, str,  size);
   string_add_pair_close(s, size);
}

#define string_is_not_equal_fast(a, b, size) (memcmp(a, b, size) != 0)
#define string_is_equal_fast(a, b, size) (memcmp(a, b, size) == 0)

static INLINE bool string_is_equal_case_insensitive(const char *a,
      const char *b)
{
   int result              = 0;
   const unsigned char *p1 = (const unsigned char*)a;
   const unsigned char *p2 = (const unsigned char*)b;

   if (!a || !b)
      return false;
   if (p1 == p2)
      return true;

   while ((result = tolower (*p1) - tolower (*p2++)) == 0)
      if (*p1++ == '\0')
         break;

   return (result == 0);
}

static INLINE bool string_is_equal_noncase(const char *a, const char *b)
{
   int result              = 0;
   const unsigned char *p1 = (const unsigned char*)a;
   const unsigned char *p2 = (const unsigned char*)b;

   if (!a || !b)
      return false;
   if (p1 == p2)
      return false;

   while ((result = tolower (*p1) - tolower (*p2++)) == 0)
      if (*p1++ == '\0')
         break;

   return (result == 0);
}

char *string_to_upper(char *s);

char *string_to_lower(char *s);

char *string_ucwords(char* s);

char *string_replace_substring(const char *in, const char *pattern,
      const char *by);

/* Remove leading whitespaces */
char *string_trim_whitespace_left(char *const s);

/* Remove trailing whitespaces */
char *string_trim_whitespace_right(char *const s);

/* Remove leading and trailing whitespaces */
char *string_trim_whitespace(char *const s);

char *word_wrap(char* buffer, const char *string, int line_width, bool unicode);

RETRO_END_DECLS

#endif