Update of bug #66069 (group groff):

                 Summary: [troff] want `phcode` request to report hyphenation
codes => [troff] want debugging request to report hyphenation codes

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Follow-up Comment #2:

I've superseded `phcode`, which did not survive into a release or release
candidate, with the more comprehensive `pchar`.


commit 881a436e9ee00e131031b59b1471d715176bf634
Author: G. Branden Robinson <g.branden.robin...@gmail.com>
Date:   Tue Feb 4 05:53:31 2025 -0600

    [troff]: Drop `phcode` request.
    
    ...introduced on 4 November.  The experimental new `pchar` request
    handles that job and more.
    
    * src/roff/troff/input.cpp (report_hyphenation_codes): Drop request
      handler.
    
      (init_input_requests): Unwire `phcode` request from handler.
    
    * src/utils/grog/grog.pl (interpret_line): Unrecognize `phcode` as a GNU
      troff request.
    
    * NEWS: Drop item.
    * doc/groff.texi.in (Manipulating Hyphenation, Debugging):
    * man/groff.7.man (Request short reference, Debugging):
    * man/groff_diff.7.man (New requests, Debugging): Replace documentation
      of `phcode` with terse documentation of `pchar`, noting its
      experimental status.

commit d84dd6ddc7b14fe2d79d1e4542b294e2fbcfa065
Author: G. Branden Robinson <g.branden.robin...@gmail.com>
Date:   Tue Feb 4 05:36:08 2025 -0600

    [troff]: Add experimental charinfo dump feature.
    
    * src/roff/troff/charinfo.h (class charinfo): Declare `dump()` member
      function, taking and returning no arguments.
    
    * src/roff/troff/input.cpp (charinfo::dump): Implement it.
    
      (report_character_request): Add request handler that iterates each
      ordinary or special character in the argument and calls `dump()` on
      it.
    
      (init_input_requests): Wire up `pchar` request to handler.




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