prev_syntax      1419 ext/mbstring/php_mbregex.c static void _php_mb_regex_set_options(OnigOptionType options, OnigSyntaxType *syntax, OnigOptionType *prev_options, OnigSyntaxType **prev_syntax TSRMLS_DC) 
prev_syntax      1424 ext/mbstring/php_mbregex.c 	if (prev_syntax != NULL) {
prev_syntax      1425 ext/mbstring/php_mbregex.c 		*prev_syntax = MBREX(regex_default_syntax);