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Branden Robinson" Cc: emacs-orgmode@gnu.org, groff@gnu.org Subject: Re: [BUG] "\fC" macro in ox-man.el [9.6.15 (release_9.6.15 @ /usr/share/emacs/29.2/lisp/org/)] In-Reply-To: <20250103083819.bvz53fcaluaxyubt@illithid> References: <20250103083819.bvz53fcaluaxyubt@illithid> Date: Sat, 04 Jan 2025 13:26:08 +0000 Message-ID: <87frlyg173.fsf@localhost> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=185.67.36.65; envelope-from=yantar92@posteo.net; helo=mout01.posteo.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-orgmode@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+larch=yhetil.org@gnu.org Sender: emacs-orgmode-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN X-Migadu-Queue-Id: 4560A46E3 X-Migadu-Scanner: mx13.migadu.com X-Migadu-Spam-Score: -4.08 X-Spam-Score: -4.08 X-TUID: sMZDIskbIPmq "G. Branden Robinson" writes: >> Also note that if a change involving italic happens between two >> non-whitespace characters, like so: >> groff(/7/) >> >> ...an italic correction should be emitted to prevent the two glyphs >> colliding into each other: >> groff(\,\fI7\fR\/) >> where: >> \, is left italic correction >> \/ is right italic correction > > So another thing to know here is that these italic correction escape > sequences are, yet again, GNU troff extensions. A legacy formatter is > likely to render them as if the backslash were absent, which is very > much not what you want in your output. Hmm. I am wondering why GNU troff is not making these adjustments automatically when rendering things. > I reiterate that Ihor's objective of "everything working everywhere" is > a tall challenge. My advice is to the org-mode project is to limit its > compatibility horizon to groff, Heirloom Doctools troff, neatroff, and > mandoc. I say that not for self-serving reasons[4] but because other > implementations are moribund or not aimed at general-purpose use.[5] I do not oppose limiting scope somewhat. At the end, our official policy is simply supporting the latest version of third-party tools we need to cooperate with. However, yet another policy is to not break Org documents that worked in the past. That's way I prefer to be over-cautions and support more things, especially if such support is not too difficult. The idea with adding multiple legacy escapes seems simple enough to do it once and forget. > If org-mode did that, it could ignore the `CW` font whose history I just > went to the trouble to explore, and the problem with `\,` and `\/` > escape sequences as well. With a little more research we might find > that org-mode could disregard `\fC` as well. There is no problem with \, and \/ sequences in Org - we do not use them. Whether we should is another story. What would be the downside of adding \fCW (in addition to other things)? > Having now seen org-mode's man(7) output in the flesh from my own input, > I see plenty of room for easy wins and improvements. I'll venture those > in a separate discussion as I make time, or as someone throws me > questions to answer or problems to solve. That would indeed be welcome. -- Ihor Radchenko // yantar92, Org mode maintainer, Learn more about Org mode at . Support Org development at , or support my work at