1ECMA-48:
2  http://www.ecma-international.org/publications/standards/Ecma-048.htm
3
4Xterm Control Sequences:
5  http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
6
7Digital VT100 User Guide:
8  http://vt100.net/docs/vt100-ug/
9
10Digital VT220 Programmer Reference Manual
11  http://vt100.net/docs/vt220-rm/
12
13Summary of ANSI standards for ASCII terminals
14  http://www.inwap.com/pdp10/ansicode.txt
15