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# Source code for pyte.control

    # -*- coding: utf-8 -*-
    """
        pyte.control
        ~~~~~~~~~~~~

        This module defines simple control sequences, recognized by
        :class:`~pyte.streams.Stream`, the set of codes here is for
        ``TERM=linux`` which is a superset of VT102.

        :copyright: (c) 2011-2013 by Selectel, see AUTHORS for details.
        :license: LGPL, see LICENSE for more details.
    """

    from __future__ import unicode_literals

    #: *Space*: Not suprisingly -- ``" "``.
    SP = " "

    #: *Null*: Does nothing.
    NUL = "\u0000"

    #: *Bell*: Beeps.
    BEL = "\u0007"

    #: *Backspace*: Backspace one column, but not past the begining of the
    #: line.
    BS = "\u0008"

    #: *Horizontal tab*: Move cursor to the next tab stop, or to the end
    #: of the line if there is no earlier tab stop.
    HT = "\u0009"

    #: *Linefeed*: Give a line feed, and, if :data:`pyte.modes.LNM` (new
    #: line mode) is set also a carriage return.
    LF = "\n"
    #: *Vertical tab*: Same as :data:`LF`.
    VT = "\u000b"
    #: *Form feed*: Same as :data:`LF`.
    FF = "\u000c"

    #: *Carriage return*: Move cursor to left margin on current line.
    CR = "\r"

    #: *Shift out*: Activate G1 character set.
    SO = "\u000e"

    #: *Shift in*: Activate G0 character set.
    SI = "\u000f"

    #: *Cancel*: Interrupt escape sequence. If received during an escape or
    #: control sequence, cancels the sequence and displays substitution
    #: character.
    CAN = "\u0018"
    #: *Substitute*: Same as :data:`CAN`.
    SUB = "\u001a"

    #: *Escape*: Starts an escape sequence.
    ESC = "\u001b"

    #: *Delete*: Is ingored.
    DEL = "\u007f"

    #: *Control sequence introducer*: An equavalent for ``ESC [``.
    CSI = "\u009b"

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