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From: Peter Oliver
Newsgroups: gmane.emacs.bugs
Subject: bug#46298: 28.0.50; Best default for ispell-program-name
Date: Thu, 4 Feb 2021 16:03:15 +0000 (GMT)
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The default value of ispell-program-name is decided by looking in turn for the binaries aspell, ispell, hunspell and enchant-2, and using whichever is first found. Would it make sense to sort these in order of which we believe to be best?
As I understand it, which backend is most accurate varies from language to language. Assuming the quality of the Emacs integration is equal, I would suggest putting Enchant first on the list rather than last. Enchant doesnʼt do any spellchecking itself, but instead selects a backend based on a per-language configuration preference, automatically skipping any backends which are not installed or for which dictionaries are not installed in the current language.
I notice that the Red Hat/Fedora packages patch Emacs to put Hunspell first on the list (https://src.fedoraproject.org/rpms/emacs/blob/rawhide/f/emacs-spellchecker.patch). The rationale for this was that if Aspell was installed but the Aspell dictionaries for a language were not, then ispell-buffer fails (https://bugzilla.redhat.com/show_bug.cgi?id=713600). If, instead, Enchant was tried first, this kind of tinkering would not be necessary.
--
Peter Oliver
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