74 lines
1.7 KiB
Python
74 lines
1.7 KiB
Python
# -*- coding: utf-8 -*-
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"""
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pyte.control
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~~~~~~~~~~~~
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This module defines simple control sequences, recognized by
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:class:`~pyte.streams.Stream`, the set of codes here is for
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``TERM=linux`` which is a superset of VT102.
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:copyright: (c) 2011-2012 by Selectel.
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:copyright: (c) 2012-2016 by pyte authors and contributors,
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see AUTHORS for details.
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:license: LGPL, see LICENSE for more details.
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"""
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#: *Space*: Not suprisingly -- ``" "``.
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SP = b" "
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#: *Null*: Does nothing.
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NUL = b"\x00"
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#: *Bell*: Beeps.
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BEL = b"\x07"
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#: *Backspace*: Backspace one column, but not past the begining of the
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#: line.
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BS = b"\x08"
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#: *Horizontal tab*: Move cursor to the next tab stop, or to the end
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#: of the line if there is no earlier tab stop.
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HT = b"\x09"
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#: *Linefeed*: Give a line feed, and, if :data:`pyte.modes.LNM` (new
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#: line mode) is set also a carriage return.
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LF = b"\n"
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#: *Vertical tab*: Same as :data:`LF`.
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VT = b"\x0b"
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#: *Form feed*: Same as :data:`LF`.
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FF = b"\x0c"
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#: *Carriage return*: Move cursor to left margin on current line.
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CR = b"\r"
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#: *Shift out*: Activate G1 character set.
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SO = b"\x0e"
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#: *Shift in*: Activate G0 character set.
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SI = b"\x0f"
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#: *Cancel*: Interrupt escape sequence. If received during an escape or
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#: control sequence, cancels the sequence and displays substitution
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#: character.
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CAN = b"\x18"
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#: *Substitute*: Same as :data:`CAN`.
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SUB = b"\x1a"
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#: *Escape*: Starts an escape sequence.
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ESC = b"\x1b"
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#: *Delete*: Is ignored.
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DEL = b"\x7f"
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#: *Control sequence introducer*: An equivalent for ``ESC [``.
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CSI = b"\x9b"
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#: *String terminator*.
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ST = b"\x9c"
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#: *Operating system command*.
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OSC = b"\x9d"
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#: Device Control function (DCS)
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DCS = ESC + b"P"
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