Related terms
The scratchpad is a temporary internal data structure used by stream processing as it transforms source HTML (or XML) in the context your clipboard contents. The scratchpad contains a two-column table of symbols and associated text values.
In your source HTML you can add an entry to the scratchpad using the save JSP tag (or the equivalent save directive). Later in the same source HTML rule, you can use the save directive or tag again to retrieve the value you assigned earlier.