Format for Keyword Entries
--------------------------

   The second keyfile format section contains lines of keywords and any
associated attributes you might supply.  A line beginning with `#' in
the first column is considered a comment.  Everything following the `#'
is ignored, up to and including the following newline.

   The first field of each non-comment line is always the key itself.
It should be given as a simple name, *i.e.*, without surrounding string
quotation marks, and be left-justified flush against the first column.
In this context, a "field" is considered to extend up to, but not
include, the first blank, comma, or newline.  Here is a simple example
taken from a partial list of C reserved words:

     # These are a few C reserved words, see the c.`gperf' file
     # for a complete list of ANSI C reserved words.
     unsigned
     sizeof
     switch
     signed
     if
     default
     for
     while
     return

   Note that unlike `flex' or `bison' the first `%%' marker may be
elided if the declaration section is empty.

   Additional fields may optionally follow the leading keyword.  Fields
should be separated by commas, and terminate at the end of line.  What
these fields mean is entirely up to you; they are used to initialize the
elements of the user-defined `struct' provided by you in the
declaration section.  If the `-t' option is *not* enabled these fields
are simply ignored.  All previous examples except the last one contain
keyword attributes.