Finds the next occurrence of a string in a collection, prompting for the string if it is not supplied.
The generic function collection-find-string
calls find-string-in-collection with
collection
and
set.
string
is also passed if non-nil. If
string
is nil
, collection-find-string
first prompts the user for a string to pass.
CAPI User Guide and Reference Manual (Unix version) - 3 Aug 2017