Add locale for grapheme_levenshtein function

Author: youkidearitai

ext/intl/grapheme/grapheme_string.c

@@ -934,6 +934,8 @@ PHP_FUNCTION(grapheme_levenshtein)
 	zend_long cost_ins = 1;
 	zend_long cost_rep = 1;
 	zend_long cost_del = 1;
+	char *locale = "";
+	size_t locale_len = 0;
 
 	ZEND_PARSE_PARAMETERS_START(2, 5)
 		Z_PARAM_STR(string1)
@@ -942,6 +944,7 @@ PHP_FUNCTION(grapheme_levenshtein)
 		Z_PARAM_LONG(cost_ins)
 		Z_PARAM_LONG(cost_rep)
 		Z_PARAM_LONG(cost_del)
+		Z_PARAM_STRING_OR_NULL(locale, locale_len)
 	ZEND_PARSE_PARAMETERS_END();
 
 	if (cost_ins <= 0 || cost_ins > UINT_MAX / 4) {
@@ -1058,7 +1061,7 @@ PHP_FUNCTION(grapheme_levenshtein)
 		RETVAL_FALSE;
 		goto out_bi2;
 	}
-	UCollator *collator = ucol_open("", &ustatus);
+	UCollator *collator = ucol_open(locale, &ustatus);
 	if (U_FAILURE(ustatus)) {
 		intl_error_set_code(NULL, ustatus);
 

ext/intl/php_intl.stub.php

@@ -447,7 +447,7 @@ function grapheme_stristr(string $haystack, string $needle, bool $beforeNeedle =
 
 function grapheme_str_split(string $string, int $length = 1): array|false {}
 
-function grapheme_levenshtein(string $string1, string $string2, int $insertion_cost = 1, int $replacement_cost = 1, int $deletion_cost = 1): int|false {}
+function grapheme_levenshtein(string $string1, string $string2, int $insertion_cost = 1, int $replacement_cost = 1, int $deletion_cost = 1, ?string $locale = null): int|false {}
 
 /** @param int $next */
 function grapheme_extract(string $haystack, int $size, int $type = GRAPHEME_EXTR_COUNT, int $offset = 0, &$next = null): string|false {}

ext/intl/php_intl_arginfo.h

@@ -80,6 +80,10 @@ try {
 } catch (ValueError $e) {
 	echo $e->getMessage() . PHP_EOL;
 }
+
+echo '--- Locale string ---' . \PHP_EOL;
+var_dump(grapheme_stripos("i", "\u{0130}", 0, "tr_TR"));
+var_dump(grapheme_stripos("i", "\u{0130}", 0, "en_US"));
 ?>
 --EXPECTF--
 --- Equal ---
@@ -126,3 +130,6 @@ int(0)
 grapheme_levenshtein(): Argument #3 ($insertion_cost) must be greater than 0 and less than or equal to %d
 grapheme_levenshtein(): Argument #4 ($replacement_cost) must be greater than 0 and less than or equal to %d
 grapheme_levenshtein(): Argument #5 ($deletion_cost) must be greater than 0 and less than or equal to %d
+--- Locale string ---
+int(0)
+bool(false)