glib:variant-is-signature (string)

string -- a normal C nul-terminated string

True if string is a D-Bus type signature.

Determines if a given string is a valid D-Bus type signature. You should ensure that a string is a valid D-Bus type signature before passing it to the g:variant-new-signature function.

D-Bus type signatures consist of zero or more definite g:variant-type strings in sequence.