From: Eli Zaretskii Date: Fri, 6 Apr 2001 11:12:12 +0000 (+0000) Subject: (MS-DOS and MULE): IBM graphics characters are no longer displayed X-Git-Tag: emacs-pretest-21.0.102~2 X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=e18c8fa892619b728f7248eaf995906e07db0575;p=emacs.git (MS-DOS and MULE): IBM graphics characters are no longer displayed as dos-unsupported-character-glyph. --- diff --git a/man/msdog.texi b/man/msdog.texi index 4b7ad4cef8b..349059b7c74 100644 --- a/man/msdog.texi +++ b/man/msdog.texi @@ -668,14 +668,20 @@ knows the language.) Even though the character may occupy several columns on the screen, it is really still just a single character, and all Emacs commands treat it as one. -@vindex dos-unsupported-character-glyph +@cindex IBM graphics characters (MS-DOS) +@cindex box-drawing characters (MS-DOS) +@cindex line-drawing characters (MS-DOS) Not all characters in DOS codepages correspond to ISO 8859 characters---some are used for other purposes, such as box-drawing -characters and other graphics. Emacs cannot represent these characters -internally, so when you read a file that uses these characters, they are -converted into a particular character code, specified by the variable -@code{dos-unsupported-character-glyph}. +characters and other graphics. Emacs maps these characters to two +special character sets called @code{eight-bit-control} and +@code{eight-bit-graphic}, and displays them as their IBM glyphs. +However, you should be aware that other systems might display these +characters differently, so you should avoid them in text that might be +copied to a different operating system, or even to another DOS machine +that uses a different codepage. +@vindex dos-unsupported-character-glyph Emacs supports many other characters sets aside from ISO 8859, but it cannot display them on MS-DOS. So if one of these multibyte characters appears in a buffer, Emacs on MS-DOS displays them as specified by the