--- /dev/null
+// TODO: Give this a proper type
+export const CHARSETS: any = {};
+
+// DEC Special Character and Line Drawing Set.
+// http://vt100.net/docs/vt102-ug/table5-13.html
+// A lot of curses apps use this if they see TERM=xterm.
+// testing: echo -e '\e(0a\e(B'
+// The xterm output sometimes seems to conflict with the
+// reference above. xterm seems in line with the reference
+// when running vttest however.
+// The table below now uses xterm's output from vttest.
+CHARSETS.SCLD = { // (0
+ '`': '\u25c6', // '◆'
+ 'a': '\u2592', // '▒'
+ 'b': '\u0009', // '\t'
+ 'c': '\u000c', // '\f'
+ 'd': '\u000d', // '\r'
+ 'e': '\u000a', // '\n'
+ 'f': '\u00b0', // '°'
+ 'g': '\u00b1', // '±'
+ 'h': '\u2424', // '\u2424' (NL)
+ 'i': '\u000b', // '\v'
+ 'j': '\u2518', // '┘'
+ 'k': '\u2510', // '┐'
+ 'l': '\u250c', // '┌'
+ 'm': '\u2514', // '└'
+ 'n': '\u253c', // '┼'
+ 'o': '\u23ba', // '⎺'
+ 'p': '\u23bb', // '⎻'
+ 'q': '\u2500', // '─'
+ 'r': '\u23bc', // '⎼'
+ 's': '\u23bd', // '⎽'
+ 't': '\u251c', // '├'
+ 'u': '\u2524', // '┤'
+ 'v': '\u2534', // '┴'
+ 'w': '\u252c', // '┬'
+ 'x': '\u2502', // '│'
+ 'y': '\u2264', // '≤'
+ 'z': '\u2265', // '≥'
+ '{': '\u03c0', // 'π'
+ '|': '\u2260', // '≠'
+ '}': '\u00a3', // '£'
+ '~': '\u00b7' // '·'
+};
+
+CHARSETS.UK = null; // (A
+CHARSETS.US = null; // (B (USASCII)
+CHARSETS.Dutch = null; // (4
+CHARSETS.Finnish = null; // (C or (5
+CHARSETS.French = null; // (R
+CHARSETS.FrenchCanadian = null; // (Q
+CHARSETS.German = null; // (K
+CHARSETS.Italian = null; // (Y
+CHARSETS.NorwegianDanish = null; // (E or (6
+CHARSETS.Spanish = null; // (Z
+CHARSETS.Swedish = null; // (H or (7
+CHARSETS.Swiss = null; // (=
+CHARSETS.ISOLatin = null; // /A