Finds the next occurence 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 Reference Manual - 15 Dec 2011