hostnameIsNonAscii

Tests if hostname contains Unicode characters. If this returns true, you need to encode the hostname with [glib.global.hostnameToAscii] before using it in non-IDN-aware contexts.

Note that a hostname might contain a mix of encoded and unencoded segments, and so it is possible for [glib.global.hostnameIsNonAscii] and [glib.global.hostnameIsAsciiEncoded] to both return true for a name.