Stanford/ITS character set

Stanford/ITS character set is an extended ASCII character set based on SEASCII with modifications allowing compatibility with 1968 ASCII.[2]

Stanford/ITS character set
Stanford/ITS character set code page layout
Language(s)English
Created byMIT[1]
DefinitionsRFC 734
ClassificationExtended ASCII
ExtendsUS-ASCII
Based onSEASCII[2]

Usage

It is used as an alternate character set of the SUPDUP protocol for terminals with %TOSAI and %TOFCI bits set.[2] It is also recommended for TeX implementations on systems with large character sets.[1] The default plain TeX macro package sets values B16 (↑) and 116 (↓) as alternative character codes for superscripts and subscripts, respectively (the default being ^ and _).[3]

The Knight keyboard is an example of a keyboard capable of inputting all of the defined characters excluding ⋅γδ±⊕◊∫, as they are mapped to ASCII commands NUL, HT, LF, FF, CR, ESC and DEL, respectively.

Coverage

Each character is encoded as a single seven-bit code value. It contains all 96 printable ASCII characters along with 27 mathematical symbols and 6 Greek letters.

Code page layout
Stanford/ITS character set
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F
0_ ⋅
22C5		 ↓
2193		 α
03B1		 β
03B2		 ∧
2227		 ¬
00AC		 ∈
2208		 π
03C0		 λ
03BB		 γ
03B3		 δ
03B4		 ↑
2191		 ±
00B1		 ⊕
2295		 ∞
221E		 ∂
2202
1_ ⊂
2282		 ⊃
2283		 ∩
2229		 ∪
222A		 ∀
2200		 ∃
2203		 ⊗
2297		 ⇆
21C6		 ←
2190		 →
2192		 ≠
2260		 ◊
25CA		 ≤
2264		 ≥
2265		 ≡
2261		 ∨
2228
2_ SP
0020		 !
0021		 "
0022		 #
0023		 $
0024		 %
0025		 &
0026		 '
0027		 (
0028		 )
0029		 *
002A		 +
002B		 ,
002C		 -
002D		 .
002E		 /
002F
3_ 0
0030		 1
0031		 2
0032		 3
0033		 4
0034		 5
0035		 6
0036		 7
0037		 8
0038		 9
0039		 :
003A		 ;
003B		 <
003C		 =
003D		 >
003E		 ?
003F
4_ @
0040		 A
0041		 B
0042		 C
0043		 D
0044		 E
0045		 F
0046		 G
0047		 H
0048		 I
0049		 J
004A		 K
004B		 L
004C		 M
004D		 N
004E		 O
004F
5_ P
0050		 Q
0051		 R
0052		 S
0053		 T
0054		 U
0055		 V
0056		 W
0057		 X
0058		 Y
0059		 Z
005A		 [
005B		 \
005C		 ]
005D		 ^
005E		 _
005F
6_ `
0060		 a
0061		 b
0062		 c
0063		 d
0064		 e
0065		 f
0066		 g
0067		 h
0068		 i
0069		 j
006A		 k
006B		 l
006C		 m
006D		 n
006E		 o
006F
7_ p
0070		 q
0071		 r
0072		 s
0073		 t
0074		 u
0075		 v
0076		 w
0077		 x
0078		 y
0079		 z
007A		 {
007B		 |
007C		 }
007D		 ~
007E		 ∫
222B

  Letter   Number   Punctuation   Symbol   Other   Undefined

See also

References
  1. Knuth, Donald (1986). "Appendix C: Character Codes". The TeXbook (PDF). Reading, Massachusetts: Addison-Wesley. p. 369. ISBN 0201134470.
  2. Crispin, Mark (October 1977). "Stanford/ITS character set". SUPDUP Protocol. IETF. p. 12. doi:10.17487/RFC0734. RFC 734. Retrieved February 18, 2019.
  3. Knuth, Donald (1986). "Appendix B: Basic Control Sequences". The TeXbook (PDF). Reading, Massachusetts: Addison-Wesley. p. 343. ISBN 0201134470.

Further reading
  • RFC 734 - (Historic) SUPDUP Protocol. October 1977.
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