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libretro, update libretro-common
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kub
parent
8717984c12
commit
b4e7cd1b51
39 changed files with 1767 additions and 738 deletions
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@ -1,4 +1,4 @@
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/* Copyright (C) 2010-2019 The RetroArch team
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/* Copyright (C) 2010-2020 The RetroArch team
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (stdstring.h).
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@ -35,6 +35,33 @@
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RETRO_BEGIN_DECLS
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#define STRLEN_CONST(x) ((sizeof((x))-1))
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#define strcpy_literal(a, b) strcpy(a, b)
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#define string_is_not_equal(a, b) !string_is_equal((a), (b))
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#define string_is_not_equal_fast(a, b, size) (memcmp(a, b, size) != 0)
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#define string_is_equal_fast(a, b, size) (memcmp(a, b, size) == 0)
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#define TOLOWER(c) ((c) | (lr_char_props[(unsigned char)(c)] & 0x20))
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#define TOUPPER(c) ((c) & ~(lr_char_props[(unsigned char)(c)] & 0x20))
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/* C standard says \f \v are space, but this one disagrees */
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#define ISSPACE(c) (lr_char_props[(unsigned char)(c)] & 0x80)
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#define ISDIGIT(c) (lr_char_props[(unsigned char)(c)] & 0x40)
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#define ISALPHA(c) (lr_char_props[(unsigned char)(c)] & 0x20)
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#define ISLOWER(c) (lr_char_props[(unsigned char)(c)] & 0x04)
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#define ISUPPER(c) (lr_char_props[(unsigned char)(c)] & 0x02)
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#define ISALNUM(c) (lr_char_props[(unsigned char)(c)] & 0x60)
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#define ISUALPHA(c) (lr_char_props[(unsigned char)(c)] & 0x28)
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#define ISUALNUM(c) (lr_char_props[(unsigned char)(c)] & 0x68)
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#define IS_XDIGIT(c) (lr_char_props[(unsigned char)(c)] & 0x01)
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/* Deprecated alias, all callers should use string_is_equal_case_insensitive instead */
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#define string_is_equal_noncase string_is_equal_case_insensitive
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static INLINE bool string_is_empty(const char *data)
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{
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return !data || (*data == '\0');
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@ -45,12 +72,44 @@ static INLINE bool string_is_equal(const char *a, const char *b)
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return (a && b) ? !strcmp(a, b) : false;
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}
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#define STRLEN_CONST(x) ((sizeof((x))-1))
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static INLINE bool string_starts_with_size(const char *str, const char *prefix,
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size_t size)
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{
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return (str && prefix) ? !strncmp(prefix, str, size) : false;
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}
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#define string_is_not_equal(a, b) !string_is_equal((a), (b))
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static INLINE bool string_starts_with(const char *str, const char *prefix)
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{
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return (str && prefix) ? !strncmp(prefix, str, strlen(prefix)) : false;
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}
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static INLINE bool string_ends_with_size(const char *str, const char *suffix,
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size_t str_len, size_t suffix_len)
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{
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return (str_len < suffix_len) ? false :
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!memcmp(suffix, str + (str_len - suffix_len), suffix_len);
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}
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static INLINE bool string_ends_with(const char *str, const char *suffix)
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{
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if (!str || !suffix)
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return false;
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return string_ends_with_size(str, suffix, strlen(str), strlen(suffix));
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}
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/* Returns the length of 'str' (c.f. strlen()), but only
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* checks the first 'size' characters
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* - If 'str' is NULL, returns 0
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* - If 'str' is not NULL and no '\0' character is found
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* in the first 'size' characters, returns 'size' */
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static INLINE size_t strlen_size(const char *str, size_t size)
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{
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size_t i = 0;
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if (str)
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while (i < size && str[i]) i++;
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return i;
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}
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#define string_is_not_equal_fast(a, b, size) (memcmp(a, b, size) != 0)
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#define string_is_equal_fast(a, b, size) (memcmp(a, b, size) == 0)
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static INLINE bool string_is_equal_case_insensitive(const char *a,
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const char *b)
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@ -71,22 +130,23 @@ static INLINE bool string_is_equal_case_insensitive(const char *a,
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return (result == 0);
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}
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static INLINE bool string_is_equal_noncase(const char *a, const char *b)
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static INLINE bool string_starts_with_case_insensitive(const char *str,
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const char *prefix)
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{
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int result = 0;
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const unsigned char *p1 = (const unsigned char*)a;
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const unsigned char *p2 = (const unsigned char*)b;
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const unsigned char *p1 = (const unsigned char*)str;
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const unsigned char *p2 = (const unsigned char*)prefix;
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if (!a || !b)
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if (!str || !prefix)
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return false;
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if (p1 == p2)
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return false;
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return true;
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while ((result = tolower (*p1) - tolower (*p2++)) == 0)
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if (*p1++ == '\0')
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while ((result = tolower (*p1++) - tolower (*p2)) == 0)
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if (*p2++ == '\0')
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break;
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return (result == 0);
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return (result == 0 || *p2 == '\0');
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}
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char *string_to_upper(char *s);
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@ -107,9 +167,61 @@ char *string_trim_whitespace_right(char *const s);
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/* Remove leading and trailing whitespaces */
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char *string_trim_whitespace(char *const s);
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/* max_lines == 0 means no limit */
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char *word_wrap(char *buffer, const char *string,
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int line_width, bool unicode, unsigned max_lines);
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/*
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* Wraps string specified by 'src' to destination buffer
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* specified by 'dst' and 'dst_size'.
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* This function assumes that all glyphs in the string
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* have an on-screen pixel width similar to that of
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* regular Latin characters - i.e. it will not wrap
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* correctly any text containing so-called 'wide' Unicode
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* characters (e.g. CJK languages, emojis, etc.).
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*
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* @param dst pointer to destination buffer.
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* @param dst_size size of destination buffer.
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* @param src pointer to input string.
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* @param line_width max number of characters per line.
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* @param wideglyph_width not used, but is necessary to keep
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* compatibility with word_wrap_wideglyph().
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* @param max_lines max lines of destination string.
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* 0 means no limit.
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*/
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void word_wrap(char *dst, size_t dst_size, const char *src,
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int line_width, int wideglyph_width, unsigned max_lines);
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/*
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* Wraps string specified by 'src' to destination buffer
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* specified by 'dst' and 'dst_size'.
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* This function assumes that all glyphs in the string
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* are:
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* - EITHER 'non-wide' Unicode glyphs, with an on-screen
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* pixel width similar to that of regular Latin characters
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* - OR 'wide' Unicode glyphs (e.g. CJK languages, emojis, etc.)
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* with an on-screen pixel width defined by 'wideglyph_width'
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* Note that wrapping may occur in inappropriate locations
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* if 'src' string contains 'wide' Unicode characters whose
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* on-screen pixel width deviates greatly from the set
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* 'wideglyph_width' value.
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*
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* @param dst pointer to destination buffer.
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* @param dst_size size of destination buffer.
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* @param src pointer to input string.
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* @param line_width max number of characters per line.
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* @param wideglyph_width effective width of 'wide' Unicode glyphs.
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* the value here is normalised relative to the
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* typical on-screen pixel width of a regular
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* Latin character:
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* - a regular Latin character is defined to
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* have an effective width of 100
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* - wideglyph_width = 100 * (wide_character_pixel_width / latin_character_pixel_width)
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* - e.g. if 'wide' Unicode characters in 'src'
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* have an on-screen pixel width twice that of
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* regular Latin characters, wideglyph_width
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* would be 200
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* @param max_lines max lines of destination string.
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* 0 means no limit.
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*/
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void word_wrap_wideglyph(char *dst, size_t dst_size, const char *src,
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int line_width, int wideglyph_width, unsigned max_lines);
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/* Splits string into tokens seperated by 'delim'
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* > Returned token string must be free()'d
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@ -121,7 +233,7 @@ char *word_wrap(char *buffer, const char *string,
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* char *str = "1,2,3,4,5,6,7,,,10,";
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* char **str_ptr = &str;
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* char *token = NULL;
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* while((token = string_tokenize(str_ptr, ",")))
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* while ((token = string_tokenize(str_ptr, ",")))
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* {
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* printf("%s\n", token);
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* free(token);
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@ -146,6 +258,30 @@ unsigned string_to_unsigned(const char *str);
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* Returns 0 if string is invalid */
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unsigned string_hex_to_unsigned(const char *str);
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char *string_init(const char *src);
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void string_set(char **string, const char *src);
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extern const unsigned char lr_char_props[256];
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/* Get the total number of occurrences of a character in the given string. */
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int string_count_occurrences_single_character(char *str, char t);
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/* Replaces all spaces with the given character. */
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void string_replace_whitespace_with_single_character(char *str, char t);
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/* Replaces multiple spaces with a single space in a string. */
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void string_replace_multi_space_with_single_space(char *str);
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/* Remove all spaces from the given string. */
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void string_remove_all_whitespace(char* str_trimmed, const char* str_untrimmed);
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/* Retrieve the last occurance of the given character in a string. */
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int string_index_last_occurance(char str[], char t);
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/* Find the position of a substring in a string. */
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int string_find_index_substring_string(const char* str1, const char* str2);
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RETRO_END_DECLS
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#endif
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