Adding a new comment processing procedure

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

Procedures to act on comments are inserted either in the %%actions dictionary of %%dict or %actions in %dict according to whether the comment to be processed begins with %% or % respectively. The keys in the actions dictionaries do not include the leading percent sign(s). The dictionaries %%dict and %dict are located in userdict.

If a comment begins with the appropriate number of percent signs followed by a key found in the actions dictionary (including a colon if appropriate), the remainder of the comment is placed in a string on the operand stack and the procedure is extracted from the actions dictionary and executed.