PAGE_TITLE_NAME — (partly documented)
Interchange 5.9.0:
Source: dist/lib/UI/ContentEditor.pm
Line 2409 (context shows lines 2399-2413 in preview_page():2398)
my ($ref, $opt) = @_;
my $dest = preview_dir();
$dest .= "/$ref->{ui_name}";
$::Scratch->{tmp_tmpfile} = $dest;
my $tmp = { %$ref };
my $record = ref_content($tmp)
or return death("preview_template", "bad news");
my $text = format_page(
$tmp,
{
preview => $::Variable->{PAGE_TITLE_NAME} || 'page_title',
preview_tag => errmsg('****PREVIEW****'),
},
);
$record->{page_text} = $text;