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From: gildea@expo.lcs.mit.EDU (Stephen Gildea)
Newsgroups: comp.windows.x
Subject: Re: Xterm font/character set question
Message-ID: <9105281541.AA01893@alex.lcs.mit.edu>
Date: 28 May 91 15:41:29 GMT
References: <9105231045.AA26084@cas.org>
Sender: daemon@athena.mit.edu (Mr Background)
Organization: X Consortium, MIT Laboratory for Computer Science
Lines: 24


    I am trying to figure out xterm's font handling.  In the various
    docs that I have, there is a description of a series of escape
    sequences which supposedly switch between various character sets
    called G0-G3 .  Are these supposed to correspond to font 1-4 ?
    
No.  Character sets are not the same as fonts.  Character sets specify
what characters are associated with what codes.  For example, ASCII is
the default character set used by xterm.

Fonts specify how the characters look.  For example, "fixed" is the
default font used by xterm.

Xterm supports three character sets and implements escape sequences to
switch between them.  See the document "Xterm Control Sequences."

G0-G3 can be thought of as graphics contexts.  You can select the
character set for Gn and then select which Gn is active.

Xterm also supports a default font and four alternate fonts, but it
does not implement escape sequences to switch between them.

 < Stephen
   MIT X Consortium