null
U+0000
start of heading
U+0001
start of text
U+0002
end of text
U+0003
end of transmission
U+0004
enquiry
U+0005
acknowledge
U+0006
bell
U+0007
backspace
U+0008
character tabulation
U+0009
line feed (lf)
U+000A
line tabulation
U+000B
form feed (ff)
U+000C
carriage return (cr)
U+000D
shift out
U+000E
shift in
U+000F
data link escape
U+0010
device control one
U+0011
device control two
U+0012
device control three
U+0013
device control four
U+0014
negative acknowledge
U+0015
synchronous idle
U+0016
end of transmission block
U+0017
cancel
U+0018
end of medium
U+0019
substitute
U+001A
escape
U+001B
information separator four
U+001C
information separator three
U+001D