diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/hb-common.cc')
| -rw-r--r-- | thirdparty/harfbuzz/src/hb-common.cc | 58 |
1 files changed, 45 insertions, 13 deletions
diff --git a/thirdparty/harfbuzz/src/hb-common.cc b/thirdparty/harfbuzz/src/hb-common.cc index 7266d9b01f..e6512872e8 100644 --- a/thirdparty/harfbuzz/src/hb-common.cc +++ b/thirdparty/harfbuzz/src/hb-common.cc @@ -108,7 +108,7 @@ _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 @@ -170,7 +170,7 @@ static 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. * @@ -357,7 +357,7 @@ 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. @@ -396,7 +396,7 @@ 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 @@ -441,6 +441,38 @@ hb_language_get_default () 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 */ @@ -498,7 +530,7 @@ 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 @@ -693,8 +725,8 @@ 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 **/ @@ -881,7 +913,7 @@ 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. @@ -923,7 +955,7 @@ 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 **/ @@ -954,7 +986,7 @@ 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. * @@ -1022,7 +1054,7 @@ 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. @@ -1035,7 +1067,7 @@ 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 */ @@ -1107,7 +1139,7 @@ get_C_locale () * @buf: (array length=size) (out): 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. * |