[bug #60609] [man] doesn't output footers for pages 1..(n-1) in continuous rendering mode

[G. Branden Robinson]

Update of bug #60609 (project groff):

                  Status:             In Progress => Fixed                  
             Open/Closed:                    Open => Closed                 
         Planned Release:                    None => 1.23.0                 

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Follow-up Comment #1:


commit 22809a7600f3e9c35116ed9cbe7ed75d9422ce58
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
Date:   Sun May 16 10:36:23 2021 +1000

    [man]: Fix missing page footers when -rcR=1.
    
    Fix missing page footers when continuously rendering multiple documents.
    Resolving this uncovered entangled header and footer management bugs
    with batch processing even when _not_ continuously rendering.
    
    * tmac/an-old.tmac (an-start-new-document): New macro clears header trap
      so it doesn't get called with stale information.  (The TH macro
      already re-sets a header trap with every man page if not continuously
      rendering.)  This macro also absorbs the break-page and page number
      incrementation logic from TH.
    
      (TH): Adapt semantics of "an-first" register to mean not "first page
      rendered" (apparently) but "first page of new document".  If we are
      _not_ on the first page of a new document and the TH macro is called,
      we must be batch processing: force the previous man page to end (call
      an-end if continuously rendering, or an-start-new-document if not).
      After all the header and footer strings have been configured for the
      man page, call an-header if we're on the first page of the document,
      not (just) if we're continuously rendering.  Zero an-first register at
      end of macro here unconditionally instead of conditionally in
      .an-header.
    
      (an-header): Drop conditional on continuous rendering.
    
    When I batch-render our 62 man pages to the terminal, I do note one
    cosmetic regression: the lj4_font(5) page, when continuously rendered in
    batch processing, has no space between its header line and first section
    heading ("Name").  Another cosmetic issue in this scenario is that the
    footers for every rendered page but the last, which had (wrongly) been
    absent entirely, are set with no space after them and the header of the
    next.
    
    Fixes <https://savannah.gnu.org/bugs/index.php?60609>.


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