# Security checking of filenames.
my $pathCompRE = "(?:[A-Za-z0-9-\+][A-Za-z0-9-\+\._]*)";
my $relPathRE = "(?:$pathCompRE(?:\/$pathCompRE)*)";

        # The Nix expression path must be relative and can't contain ".." elements.

        die "Invalid Nix expression path: $nixExprPath" unless $nixExprPath =~ /^\w++$/; # !!! stricter

        die "Invalid Nix expression path: $nixExprPath" if $nixExprPath !~ /^$relPathRE$/;

        if ($elem eq "." || $elem eq ".." || $elem !~ /^[\w\-\.]+$/) {
            return error($c, "Invalid filename $elem.");
        }

        return error($c, "Invalid filename $elem.") if $elem !~ /^$pathCompRE$/;

    margin-top: 2em;

    margin-top: 1em;

    margin-top: 1.5em;

}
div.template {
    display: none;

div.indent {
    padding-left: 2em;

div.jobset {
    border: solid black 1px;
    padding-left: 1em;
    padding-right: 1em;
    padding-bottom: 1em;
    margin-bottom: 1em;
}
div.jobset-edit {
    border: solid black 1px;
    background-color: #f8f8f8;
    padding-left: 1em;
    padding-right: 1em;
    margin-bottom: 1em;

div.template {
    display: none;

div.jobset-edit h3, div.jobset h3 {
    margin-top: 0.5em;

  <div class="jobset">

  <div class="jobset[% IF edit %] jobset-edit[% END %]">

  <div class="indent">

  </div>