bug#28799: 25.3; Description of Character-Folding Omits Key Functionality

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bug#28799: 25.3; Description of Character-Folding Omits Key Functionality

Richard Wordingham
(I am advised by Eli Zaretskii that this deficiency in the
documentation should be dealt with by submitting a bug report using
"M-x report-emacs-bug RET".)

The EmacsWiki page https://www.emacswiki.org/emacs/CharacterFoldPlus
gives no indication of the important capability of character folding to
search for text in Unicode Normalisation Form D or Unicode
Normalisation Form C using a search string expressed in the opposite
normalisation.

Yours faithfully,

Richard Wordingham.