Module term_model::ansi::C0

C0 set of 7-bit control characters (from ANSI X3.4-1977).

Constants

• ACK
  Acknowledge, usually sent by terminal in response to ETX
• BEL
  Bell, triggers the bell, buzzer, or beeper on the terminal
• BS
  Backspace, can be used to define overstruck characters
• CAN
  Cancel (makes VT100 abort current escape sequence if any)
• CR
  Carriage Return, move to first character of current line
• DC2
  Device Control 2, causes ASR-33 to activate paper-tape reader
• DC4
  Device Control 4, causes ASR-33 to deactivate paper-tape reader
• DEL
  Delete, should be ignored by terminal
• DLE
  Data Link Escape, interpret next control character specially
• EM
  End of Medium
• ENQ
  Enquiry, causes terminal to send ANSWER-BACK ID
• EOT
  End of Transmission
• ESC
  Prefix to an escape sequence
• ETB
  End of Transmission block
• ETX
  End of Text, causes some terminal to respond with ACK or NAK
• FF
  Form Feed, move to next form or page
• FS
  File Separator
• GS
  Group Separator
• HT
  Horizontal Tabulation, move to next predetermined position
• LF
  Linefeed, move to same position on next line (see also NL)
• NAK
  Negative Acknowledge, used sometimes with ETX and ACK
• NUL
  Null filler, terminal should ignore this character
• RS
  Record Separator (sent by VT132 in block-transfer mode)
• SI
  Shift In, switch to G0 (normal half of character set)
• SO
  Shift Out, switch to G1 (other half of character set)
• SOH
  Start of Header
• STX
  Start of Text, implied end of header
• SUB
  Substitute (VT100 uses this to display parity errors)
• SYN
  Synchronous Idle, used to maintain timing in Sync communication
• US
  Unit Separator
• VT
  Vertical Tabulation, move to next predetermined line
• XOFF
  (DC2) Terminal must pause and refrain from transmitting
• XON
  (DC1) Terminal is allowed to resume transmitting