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when the accessed entry does not exist. The file gets then opened with a
text editor. The C<$EDITOR> environment variable will be honored unless an
editor is defined in the C<pft.yaml> configuration file (see
L<pft-init(1)>). You may also specify a different editor using the
B<--editor> command line option.

When the editor is terminated the file content is evaluated.  A warning will
be issued if the header is invalid.  If the file completely empty (zero
bytes) it will be removed from the filesystem.  If the header is valid but
not consistent with the position in the filesystem (e.g. the date was
manually changed) the file position is updated according to the header.

=head2 The content header

Each entry starts with a header in I<YAML> format. The header defines the
properties of the entries. Valid properties with their descriptions follow
in this section.

=over

=item I<Author>