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Concatenating comment parsing procedures

This page applies to Harlequin v13.1r0 and later; both Harlequin Core and Harlequin MultiRIP.

To add to the functionality of an existing comment procedure, procedures can be concatenated, as shown below:

          (%%dict) load (%%actions) get begin
              [ /dup load //CreationDate: /exec load
                { ... } /exec load ]
              cvx def

If you do need to act on %%Creator comments, additional functionality in the HqnCreator procset allows such parsing procedures to be added easily without causing problems with pre-existing parsing. Similar handling for the %%BeginProcSet comment is included in the HqnBeginProcset procset.

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