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"use_strict";
function trim_filename(name)
{
if (name.length > 0) {
// replace multiple hyphens with a single hyphen
name = name.replace(/--+/g, '-');
// replace multiple underscores with a single underscore
name = name.replace(/__+/g, '_');
// replace multiple periods with a single period
name = name.replace(/\.\.+/g, '.');
// trim leading and trailing underscores, hyphens, spaces, and periods
name = name.replace(/^[_\-\. ]*|[_\-\. ]*$/g, '');
}
return name;
}
function unallowed_filename_chars(name)
{
return name.match(/[^a-zA-Z0-9\-._]/g) != null;
}