Add cross-reference to alternative syntaxes for Unicode

These alternative syntaxes allow you to specify Unicode codepoints
using only ASCII, which helps avoid decoding issues.

* doc/emacs/custom.texi (Init Non-ASCII): Add cross reference to
"General Escape Syntax" in the Emacs Lisp Reference Manual.

1 files changed, 6 insertions, 0 deletions

diff --git a/doc/emacs/custom.texi b/doc/emacs/custom.texi
index 2d63b2a7175..2bc1d3820d1 100644
--- a/doc/emacs/custom.texi
+++ b/doc/emacs/custom.texi
@@ -2792,6 +2792,12 @@ strings incorrectly.  You should then avoid adding Emacs Lisp code
 that modifies the coding system in other ways, such as calls to
 @code{set-language-environment}.
 
+  An alternative to using non-@acronym{ASCII} characters directly is
+to use one of the character escape syntaxes described in
+@pxref{General Escape Syntax,,, elisp, The Emacs Lisp Reference
+Manual}, as they allow all Unicode codepoints to be specified using
+only @acronym{ASCII} characters.
+
   To bind non-@acronym{ASCII} keys, you must use a vector (@pxref{Init
 Rebinding}).  The string syntax cannot be used, since the
 non-@acronym{ASCII} characters will be interpreted as meta keys.  For