mode. this requires PCRE to be built with the --enable-utf8 option or else a Lua exception will be thrown.U similar to "u" but disables PCRE's UTF-8 validity check on the subject string. first introduced in ngx_lua v0.8.1.x extended mode (similar to Perl's
mode. this requires PCRE to be built with the --enable-utf8 option or else a Lua exception will be thrown.U similar to "u" but disables PCRE's UTF-8 validity check on the subject string. first introduced in ngx_lua v0.8.1.x extended mode (similar to Perl's