diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-common.cc')
-rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-common.cc | 139 |
1 files changed, 106 insertions, 33 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-common.cc b/src/3rdparty/harfbuzz-ng/src/hb-common.cc index 26c8ad0f49..4b8bae4422 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-common.cc +++ b/src/3rdparty/harfbuzz-ng/src/hb-common.cc @@ -29,11 +29,6 @@ #include "hb.hh" #include "hb-machinery.hh" -#include <locale.h> - -#ifdef HB_NO_SETLOCALE -#define setlocale(Category, Locale) "C" -#endif /** * SECTION:hb-common @@ -78,7 +73,7 @@ _hb_options_init () } /* This is idempotent and threadsafe. */ - _hb_options.set_relaxed (u.i); + _hb_options = u.i; } @@ -87,7 +82,7 @@ _hb_options_init () /** * hb_tag_from_string: * @str: (array length=len) (element-type uint8_t): String to convert - * @len: Length of @str, or -1 if it is %NULL-terminated + * @len: Length of @str, or -1 if it is `NULL`-terminated * * Converts a string into an #hb_tag_t. Valid tags * are four characters. Shorter input strings will be @@ -122,7 +117,7 @@ hb_tag_from_string (const char *str, int len) * @tag: #hb_tag_t to convert * @buf: (out caller-allocates) (array fixed-size=4) (element-type uint8_t): Converted string * - * Converts an #hb_tag_t to a string and returns it in @buf. + * Converts an #hb_tag_t to a string and returns it in @buf. * Strings will be four characters long. * * Since: 0.9.5 @@ -139,7 +134,7 @@ hb_tag_to_string (hb_tag_t tag, char *buf) /* hb_direction_t */ -const char direction_strings[][4] = { +static const char direction_strings[][4] = { "ltr", "rtl", "ttb", @@ -149,15 +144,15 @@ const char direction_strings[][4] = { /** * hb_direction_from_string: * @str: (array length=len) (element-type uint8_t): String to convert - * @len: Length of @str, or -1 if it is %NULL-terminated + * @len: Length of @str, or -1 if it is `NULL`-terminated * - * Converts a string to an #hb_direction_t. + * Converts a string to an #hb_direction_t. * * Matching is loose and applies only to the first letter. For * examples, "LTR" and "left-to-right" will both return #HB_DIRECTION_LTR. * * Unmatched strings will return #HB_DIRECTION_INVALID. - * + * * Return value: The #hb_direction_t matching @str * * Since: 0.9.2 @@ -264,7 +259,7 @@ struct hb_language_item_t { lang = (hb_language_t) hb_malloc(len); if (likely (lang)) { - memcpy((unsigned char *) lang, s, len); + hb_memcpy((unsigned char *) lang, s, len); for (unsigned char *p = (unsigned char *) lang; *p; p++) *p = canon_map[*p]; } @@ -336,7 +331,7 @@ retry: * hb_language_from_string: * @str: (array length=len) (element-type uint8_t): a string representing * a BCP 47 language tag - * @len: length of the @str, or -1 if it is %NULL-terminated. + * @len: length of the @str, or -1 if it is `NULL`-terminated. * * Converts @str representing a BCP 47 language tag to the corresponding * #hb_language_t. @@ -358,7 +353,7 @@ hb_language_from_string (const char *str, int len) /* NUL-terminate it. */ char strbuf[64]; len = hb_min (len, (int) sizeof (strbuf) - 1); - memcpy (strbuf, str, len); + hb_memcpy (strbuf, str, len); strbuf[len] = '\0'; item = lang_find_or_insert (strbuf); } @@ -375,7 +370,7 @@ hb_language_from_string (const char *str, int len) * Converts an #hb_language_t to a string. * * Return value: (transfer none): - * A %NULL-terminated string representing the @language. Must not be freed by + * A `NULL`-terminated string representing the @language. Must not be freed by * the caller. * * Since: 0.9.2 @@ -413,13 +408,45 @@ hb_language_get_default () hb_language_t language = default_language; if (unlikely (language == HB_LANGUAGE_INVALID)) { - language = hb_language_from_string (setlocale (LC_CTYPE, nullptr), -1); + language = hb_language_from_string (hb_setlocale (LC_CTYPE, nullptr), -1); (void) default_language.cmpexch (HB_LANGUAGE_INVALID, language); } return language; } +/** + * hb_language_matches: + * @language: The #hb_language_t to work on + * @specific: Another #hb_language_t + * + * Check whether a second language tag is the same or a more + * specific version of the provided language tag. For example, + * "fa_IR.utf8" is a more specific tag for "fa" or for "fa_IR". + * + * Return value: `true` if languages match, `false` otherwise. + * + * Since: 5.0.0 + **/ +hb_bool_t +hb_language_matches (hb_language_t language, + hb_language_t specific) +{ + if (language == specific) return true; + if (!language || !specific) return false; + + const char *l = language->s; + const char *s = specific->s; + unsigned ll = strlen (l); + unsigned sl = strlen (s); + + if (ll > sl) + return false; + + return strncmp (l, s, ll) == 0 && + (s[ll] == '\0' || s[ll] == '-'); +} + /* hb_script_t */ @@ -477,7 +504,7 @@ hb_script_from_iso15924_tag (hb_tag_t tag) * hb_script_from_string: * @str: (array length=len) (element-type uint8_t): a string representing an * ISO 15924 tag. - * @len: length of the @str, or -1 if it is %NULL-terminated. + * @len: length of the @str, or -1 if it is `NULL`-terminated. * * Converts a string @str representing an ISO 15924 script tag to a * corresponding #hb_script_t. Shorthand for hb_tag_from_string() then @@ -605,6 +632,7 @@ hb_script_get_horizontal_direction (hb_script_t script) case HB_SCRIPT_OLD_HUNGARIAN: case HB_SCRIPT_OLD_ITALIC: case HB_SCRIPT_RUNIC: + case HB_SCRIPT_TIFINAGH: return HB_DIRECTION_INVALID; } @@ -672,8 +700,8 @@ hb_version_string () * Tests the library version against a minimum value, * as three integer components. * - * Return value: %true if the library is equal to or greater than - * the test value, %false otherwise + * Return value: `true` if the library is equal to or greater than + * the test value, `false` otherwise * * Since: 0.9.30 **/ @@ -787,7 +815,7 @@ parse_tag (const char **pp, const char *end, hb_tag_t *tag) } const char *p = *pp; - while (*pp < end && (ISALNUM(**pp) || **pp == '_')) + while (*pp < end && (**pp != ' ' && **pp != '=' && **pp != '[' && **pp != quote)) (*pp)++; if (p == *pp || *pp - p > 4) @@ -860,7 +888,7 @@ parse_one_feature (const char **pp, const char *end, hb_feature_t *feature) /** * hb_feature_from_string: * @str: (array length=len) (element-type uint8_t): a string to parse - * @len: length of @str, or -1 if string is %NULL terminated + * @len: length of @str, or -1 if string is `NULL` terminated * @feature: (out): the #hb_feature_t to initialize with the parsed values * * Parses a string into a #hb_feature_t. @@ -902,7 +930,7 @@ parse_one_feature (const char **pp, const char *end, hb_feature_t *feature) * </informaltable> * * Return value: - * %true if @str is successfully parsed, %false otherwise + * `true` if @str is successfully parsed, `false` otherwise * * Since: 0.9.5 **/ @@ -923,7 +951,7 @@ hb_feature_from_string (const char *str, int len, } if (feature) - memset (feature, 0, sizeof (*feature)); + hb_memset (feature, 0, sizeof (*feature)); return false; } @@ -933,7 +961,7 @@ hb_feature_from_string (const char *str, int len, * @buf: (array length=size) (out): output string * @size: the allocated size of @buf * - * Converts a #hb_feature_t into a %NULL-terminated string in the format + * Converts a #hb_feature_t into a `NULL`-terminated string in the format * understood by hb_feature_from_string(). The client in responsible for * allocating big enough size for @buf, 128 bytes is more than enough. * @@ -968,11 +996,11 @@ hb_feature_to_string (hb_feature_t *feature, if (feature->value > 1) { s[len++] = '='; - len += hb_max (0, snprintf (s + len, ARRAY_LENGTH (s) - len, "%u", feature->value)); + len += hb_max (0, snprintf (s + len, ARRAY_LENGTH (s) - len, "%" PRIu32, feature->value)); } assert (len < ARRAY_LENGTH (s)); len = hb_min (len, size - 1); - memcpy (buf, s, len); + hb_memcpy (buf, s, len); buf[len] = '\0'; } @@ -1001,7 +1029,7 @@ parse_one_variation (const char **pp, const char *end, hb_variation_t *variation /** * hb_variation_from_string: * @str: (array length=len) (element-type uint8_t): a string to parse - * @len: length of @str, or -1 if string is %NULL terminated + * @len: length of @str, or -1 if string is `NULL` terminated * @variation: (out): the #hb_variation_t to initialize with the parsed values * * Parses a string into a #hb_variation_t. @@ -1014,7 +1042,7 @@ parse_one_variation (const char **pp, const char *end, hb_variation_t *variation * number. For example `wght=500`, or `slnt=-7.5`. * * Return value: - * %true if @str is successfully parsed, %false otherwise + * `true` if @str is successfully parsed, `false` otherwise * * Since: 1.4.2 */ @@ -1035,17 +1063,58 @@ hb_variation_from_string (const char *str, int len, } if (variation) - memset (variation, 0, sizeof (*variation)); + hb_memset (variation, 0, sizeof (*variation)); return false; } +#ifndef HB_NO_SETLOCALE + +static inline void free_static_C_locale (); + +static struct hb_C_locale_lazy_loader_t : hb_lazy_loader_t<hb_remove_pointer<hb_locale_t>, + hb_C_locale_lazy_loader_t> +{ + static hb_locale_t create () + { + hb_locale_t l = newlocale (LC_ALL_MASK, "C", NULL); + if (!l) + return l; + + hb_atexit (free_static_C_locale); + + return l; + } + static void destroy (hb_locale_t l) + { + freelocale (l); + } + static hb_locale_t get_null () + { + return (hb_locale_t) 0; + } +} static_C_locale; + +static inline +void free_static_C_locale () +{ + static_C_locale.free_instance (); +} + +static hb_locale_t +get_C_locale () +{ + return static_C_locale.get_unconst (); +} + +#endif + /** * hb_variation_to_string: * @variation: an #hb_variation_t to convert - * @buf: (array length=size) (out): output string + * @buf: (array length=size) (out caller-allocates): output string * @size: the allocated size of @buf * - * Converts an #hb_variation_t into a %NULL-terminated string in the format + * Converts an #hb_variation_t into a `NULL`-terminated string in the format * understood by hb_variation_from_string(). The client in responsible for * allocating big enough size for @buf, 128 bytes is more than enough. * @@ -1064,11 +1133,15 @@ hb_variation_to_string (hb_variation_t *variation, while (len && s[len - 1] == ' ') len--; s[len++] = '='; + + hb_locale_t oldlocale HB_UNUSED; + oldlocale = hb_uselocale (get_C_locale ()); len += hb_max (0, snprintf (s + len, ARRAY_LENGTH (s) - len, "%g", (double) variation->value)); + (void) hb_uselocale (oldlocale); assert (len < ARRAY_LENGTH (s)); len = hb_min (len, size - 1); - memcpy (buf, s, len); + hb_memcpy (buf, s, len); buf[len] = '\0'; } |