find-cmpl-prefix-entry

find-cmpl-prefix-entry is a compiled Lisp function in `completion.el'.

(find-cmpl-prefix-entry PREFIX-STRING)

Return the prefix entry for string.
Sets `cmpl-db-prefix-symbol'.
Prefix-string must be exactly `completion-prefix-min-length' long
and downcased. Sets up `cmpl-db-prefix-symbol'.