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(Unibyte Mode): Emphasize that unibyte-display-via-language-environment

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affects only the display.
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Eli Zaretskii 2009-10-04 09:02:31 +00:00
parent 6308321a84
commit 43b3b4d181
2 changed files with 19 additions and 10 deletions
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3
doc/emacs/ChangeLog
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@ -1,5 +1,8 @@
2009-10-04 Eli Zaretskii <eliz@gnu.org>
* mule.texi (Unibyte Mode): Emphasize that
unibyte-display-via-language-environment affects only the display.
* display.texi (Horizontal Scrolling): Document cursor behavior under
horizontal scrolling when point moves off the screen (Bug#4564).
Improve wording.

26
doc/emacs/mule.texi
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@ -1515,9 +1515,12 @@ sequences mostly correspond to those of the prefix input methods.
The ISO 8859 Latin-@var{n} character sets define character codes in
the range 0240 to 0377 octal (160 to 255 decimal) to handle the
accented letters and punctuation needed by various European languages
(and some non-European ones). If you disable multibyte characters,
Emacs can still handle @emph{one} of these character codes at a time.
To specify @emph{which} of these codes to use, invoke @kbd{M-x
(and some non-European ones). Note that Emacs considers bytes with
codes in this range as raw bytes, not as characters, even in a unibyte
session, i.e.@: if you disable multibyte characters. However, Emacs
can still handle these character codes as if they belonged to
@emph{one} of the single-byte character sets at a time. To specify
@emph{which} of these codes to use, invoke @kbd{M-x
set-language-environment} and specify a suitable language environment
such as @samp{Latin-@var{n}}.
@ -1527,13 +1530,16 @@ your initialization files are read as unibyte if they contain
non-@acronym{ASCII} characters.
@vindex unibyte-display-via-language-environment
Emacs can also display those characters, provided the terminal or font
in use supports them. This works automatically. Alternatively, on a
graphical display, Emacs can also display single-byte characters
through fontsets, in effect by displaying the equivalent multibyte
characters according to the current language environment. To request
this, set the variable @code{unibyte-display-via-language-environment}
to a non-@code{nil} value.
Emacs can also display bytes in the range 160 to 255 as readable
characters, provided the terminal or font in use supports them. This
works automatically. On a graphical display, Emacs can also display
single-byte characters through fontsets, in effect by displaying the
equivalent multibyte characters according to the current language
environment. To request this, set the variable
@code{unibyte-display-via-language-environment} to a non-@code{nil}
value. Note that setting this only affects how these bytes are
displayed, but does not change the fundamental fact that Emacs treats
them as raw bytes, not as characters.
@cindex @code{iso-ascii} library
If your terminal does not support display of the Latin-1 character