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Improve documentation of Hexl mode

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* doc/emacs/misc.texi (Editing Binary Files): Explain that Hexl can
also be used for editing text, including non-ASCII text.
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Eli Zaretskii 2021-05-11 20:06:02 +03:00
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doc/emacs/misc.texi
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@ -2566,6 +2566,17 @@ Other Hexl commands let you insert strings (sequences) of binary
bytes, move by @code{short}s or @code{int}s, etc.; type @kbd{C-h a
hexl-@key{RET}} for details.
Hexl mode can also be used for editing text files. This could come
in handy if the text file includes unusual characters or uses unusual
encoding (@pxref{Coding Systems}). For this purpose, Hexl commands
that insert bytes can also insert @acronym{ASCII} and
non-@acronym{ASCII} characters, including multibyte characters. To
edit a text file with Hexl, visit the file as usual, and then type
@w{@kbd{M-x hexl-mode @key{RET}}} to switch to Hexl mode. You can now
insert text characters by typing them. However, inserting multibyte
characters requires special care, to avoid the danger of creating
invalid multibyte sequences: you should start typing such characters
when point is on the first byte of a multibyte sequence in the file.
@node Saving Emacs Sessions
@section Saving Emacs Sessions