A callback function which decides whether the row indicated by iter matches a given key, and should be displayed as a possible completion for key. Note that key is normalized and case-folded, see the g_utf8_normalize() and g_utf8_casefold() functions. If this is not appropriate, match functions have access to the unmodified key via the (gtk-entry-text (gtk-entry-completion-entry completion)) call.

 lambda (completion key iter)  

completion

A gtk-entry-completion object.

key

A string to match, normalized and case-folded.

iter

A gtk-tree-iter iterator indicating the row to match.

Returns

True if iter should be displayed as a possible completion for key.