#Character sets G0 and G1
06-Sep-90 20:19:26
Sb: #21221-#Character sets G0 and G1
Fm: Tim Greenwood 76464,100
To: Dennette Harrod, Jr 76234,510
Sorry for the delay in replying. Actually, I had entirely forgotten that I
had entered the note and I do not log in very often. I also cannot locate
the original question.
The Rainbow sequences are listed in the owners manual. As the previous
reply says all the VT series from VT52 upwards are ANSI compatible, but the
200 series on supports more sets.
At work I have an excellent description of character set standards, I will
see if the author will let me upload it.
The basic mechanism is that you use escape sequences to designate sets into
G0 G1 G2 or G3 and Shift In/Shift out control codes (the ctrl codes
mentioned) to invoke these into GL and GR. GL maps to the lower 128 codes
of the 8 bit byte space and GR to the upper half. ECMA (European Computer
Manufactures Association) maintains a registry of code sets for ISO and
assigns each one an escape sequence for designating into G sets. There are
also many private code sets. The RAinbow supports Digital Multinational
Code set, which is private but is almost a close subset of te international
standard ISO 8859 (Latin 1)
Tim