Re: [Emacs-diffs] master db828f6: Don't rely on defaults in decoding UTF-8 encoded Lisp files

[Paul Eggert]

Eli Zaretskii wrote:
> This is unrelated: it specifies which character sequences should be
> composed and displayed as a single grapheme cluster.

Yes.  It might be reasonable to replace some of those \u instances for 
readability, e.g.:

-          ("V" . "[\u0904-\u0914\u0960-\u0961\u0972]") ; independent vowel
+          ("V" . "[ऄ-औॠ-ॡॲ]") ; independent vowel

But replacements would not be such a good idea for some of this code, e.g.:

-          ("H" . "\u094D")         ; HALANT
+          ("H" . "्")              ; HALANT

as standalone combining characters are problematic on display, and here:

-          ("J" . "\u200D")         ; ZWJ
+          ("J" . "‍")              ; ZWJ

where one can't easily see a zero width joiner when editing the source file.  I 
expect that whoever wrote that code felt more comfortable sticking with \u 
escapes uniformly, rather than using \u sometimes and not other times.