* numbers, every character in their names that's not one is replaced
* by an underscore followed by its two-digit hexadecimal representation.
* In addition, the entire tree is wrapped into a tag
- * <code>ParameterHandler</code> to satisfy the XML requirement that there
+ * <code>%ParameterHandler</code> to satisfy the XML requirement that there
* be only a single top-level construct in each file.
*
- * The tree structure is what the graphical user interface (see above) uses to
- * represent all parameters.
+ * The tree structure (and its XML representation) is what the graphical
+ * user interface (see above) uses to represent parameters like a
+ * directory/file collection.
*
*
* @ingroup input
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