Update libretro-common

platform/libretro/libretro-common/include/string/stdstring.h

@@ -1,4 +1,4 @@
-/* Copyright  (C) 2010-2018 The RetroArch team
+/* Copyright  (C) 2010-2019 The RetroArch team
  *
  * ---------------------------------------------------------------------------------------
  * The following license statement only applies to this file (stdstring.h).
@@ -37,43 +37,20 @@ RETRO_BEGIN_DECLS
 
 static INLINE bool string_is_empty(const char *data)
 {
-   return (data == NULL) || (*data == '\0');
+   return !data || (*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;
+   return (a && b) ? !strcmp(a, b) : false;
 }
 
-static INLINE bool string_is_not_equal(const char *a, const char *b)
-{
-   return !string_is_equal(a, b);
-}
+#define STRLEN_CONST(x)                   ((sizeof((x))-1))
 
-#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(a, b)         !string_is_equal((a), (b))
 
 #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)
+#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)
@@ -116,7 +93,7 @@ char *string_to_upper(char *s);
 
 char *string_to_lower(char *s);
 
-char *string_ucwords(char* s);
+char *string_ucwords(char *s);
 
 char *string_replace_substring(const char *in, const char *pattern,
       const char *by);
@@ -130,7 +107,44 @@ 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);
+/* max_lines == 0 means no limit */
+char *word_wrap(char *buffer, const char *string,
+      int line_width, bool unicode, unsigned max_lines);
+
+/* Splits string into tokens seperated by 'delim'
+ * > Returned token string must be free()'d
+ * > Returns NULL if token is not found
+ * > After each call, 'str' is set to the position after the
+ *   last found token
+ * > Tokens *include* empty strings
+ * Usage example:
+ *    char *str      = "1,2,3,4,5,6,7,,,10,";
+ *    char **str_ptr = &str;
+ *    char *token    = NULL;
+ *    while((token = string_tokenize(str_ptr, ",")))
+ *    {
+ *        printf("%s\n", token);
+ *        free(token);
+ *        token = NULL;
+ *    }
+ */
+char* string_tokenize(char **str, const char *delim);
+
+/* Removes every instance of character 'c' from 'str' */
+void string_remove_all_chars(char *str, char c);
+
+/* Replaces every instance of character 'find' in 'str'
+ * with character 'replace' */
+void string_replace_all_chars(char *str, char find, char replace);
+
+/* Converts string to unsigned integer.
+ * Returns 0 if string is invalid  */
+unsigned string_to_unsigned(const char *str);
+
+/* Converts hexadecimal string to unsigned integer.
+ * Handles optional leading '0x'.
+ * Returns 0 if string is invalid  */
+unsigned string_hex_to_unsigned(const char *str);
 
 RETRO_END_DECLS