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[bug #62593] clarify description of end-of-sentence detection

From: Dave
Subject: [bug #62593] clarify description of end-of-sentence detection
Date: Mon, 6 Jun 2022 17:30:32 -0400 (EDT)


                 Summary: clarify description of end-of-sentence detection
                 Project: GNU troff
               Submitter: barx
               Submitted: Mon 06 Jun 2022 04:30:30 PM CDT
                Category: Core
                Severity: 2 - Minor
              Item Group: Documentation
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


Follow-up Comments:

Date: Mon 06 Jun 2022 04:30:30 PM CDT By: Dave <barx>
Another "bookmark" bug report; Ingo already suggested this in email
(http://lists.gnu.org/r/groff/2022-06/msg00030.html), but that message might
easily get lost in the deluge of that highly active thread.

In Ingo's words:

the documentation is indeed slightly fuzzy regarding this point; "info groff"
tells me:

  5.1.2 Sentences
  GNU 'troff' does this by flagging certain characters (normally '!',
  '?', and '.') as potentially ending a sentence.  When GNU 'troff'
  encounters one of these "end-of-sentence characters" at the end of a
  line, or one of them is followed by two spaces on the same input line,
  it appends an inter-word space followed by an inter-sentence space in
  the formatted output.

Branden, please consider improving the words "followed by two spaces".

Anything like

  followed by two ordinary space characters ("  ")
  followed by two unescaped space characters ("  ")

might do.

You might also consider saying "at the end of an input line" rather than just
"at the end of a line".


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