Info-split-parameter-string
Info-split-parameter-string is a compiled Lisp function in `info.el
'.
(Info-split-parameter-string PARAMETER-STRING)
Return alist of ("KEY" . "VALUE") from PARAMETER-STRING.
PARAMETER-STRING is a whitespace separated list of KEY=VALUE pairs.
If VALUE contains whitespace or double quotes, it must be quoted
in double quotes and any double quotes or backslashes must be
escaped (\",\\).