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Partial in-memory terminal emulator
@author: Jp Calderone
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Represents the formatting state/attributes of a single character.
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background� _subtractingFc C s4 || _ || _|| _|| _|| _|| _|| _|| _d S �Nr ) �selfr r r r r r r r � r �>/usr/lib/python3/dist-packages/twisted/conch/insults/helper.py�__init__, s z_FormattingState.__init__�Twisted�
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Add a character attribute to a copy of this formatting state.
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An in-memory terminal emulator.
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Add the given printable bytes to the terminal.
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feed pairs.
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Add one byte to the terminal at the cursor and make consequent state
updates.
If b is a carriage return, move the cursor to the beginning of the
current row.
If b is a line feed, move the cursor to the next row or scroll down if
the cursor is already in the last row.
Otherwise, if b is printable, put it at the cursor position (inserting
or overwriting as dictated by the current mode) and move the cursor.
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zTerminalBuffer._scrollUpr" c C s t d| j| �| _d S �Nr )�maxrG �r �nr r r �cursorUp� s zTerminalBuffer.cursorUpc C s t | jd | j| �| _d S �Nr" )�minrg rG rm r r r �
cursorDown� s zTerminalBuffer.cursorDownc C s t d| j| �| _d S rk )rl rF rm r r r �cursorBackward� s z TerminalBuffer.cursorBackwardc C s t | j| j| �| _d S r )rq rY rF rm r r r �
cursorForward� s z TerminalBuffer.cursorForwardc C s || _ || _d S r �rF rG )r �column�liner r r �cursorPosition� s z TerminalBuffer.cursorPositionc C s | j j| _| j j| _d S r )�homerF rG rJ r r r �
cursorHome� s
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Update the cursor position attributes and scroll down if appropriate.
r N)rF rV rJ r r r rZ � s zTerminalBuffer.nextLinec C s | j | jf| _d S r )rF rG � _savedCursorrJ r r r �
saveCursor� s zTerminalBuffer.saveCursorc C s | j \| _| _| ` d S r )r} rF rG rJ r r r �
restoreCursor� s z TerminalBuffer.restoreCursorc C s |D ]}d| j |< qd S )NT)r[ �r r[ r) r r r �setModes� s zTerminalBuffer.setModesc C s0 |D ]&}z | j |= W q tk
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Enable the given modes.
Track which modes have been enabled so that the implementations of
other L{insults.ITerminalTransport} methods can be properly implemented
to respect these settings.
@see: L{resetPrivateModes}
@see: L{insults.ITerminalTransport.setPrivateModes}
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Disable the given modes.
@see: L{setPrivateModes}
@see: L{insults.ITerminalTransport.resetPrivateModes}
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d| _ d S )NZnumr� rJ r r r �numericKeypadMode+ s z TerminalBuffer.numericKeypadModec C s || j |< d S r )�charsets)r ZcharSetZwhichr r r �selectCharacterSet/ s z!TerminalBuffer.selectCharacterSetc C s t j| _d S r )r
r< rR rJ r r r �shiftIn3 s zTerminalBuffer.shiftInc C s t j| _d S r )r
�G1rR rJ r r r �shiftOut7 s zTerminalBuffer.shiftOutc s. �j �tj�_ �j� � ��fdd�}|�_d S )Nc s � | � �` ��_d S r �rN rR �rP ��fZoldActiveCharsetr r r rN ? s z3TerminalBuffer.singleShift2.<locals>.insertAtCursor)rR r
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z%TerminalBuffer.selectGraphicRenditionc C s | � | j�| j| j< d S r )rf rY rE rG rJ r r r � eraseLineq s zTerminalBuffer.eraseLinec C s, | j | j }| �|�| j| j | jd �< d S r )rY rF rf rE rG re r r r �eraseToLineEndu s z TerminalBuffer.eraseToLineEndc C s* | � | jd �| j| j d | jd �< d S rp )rf rF rE rG rJ r r r �eraseToLineBeginningz s z#TerminalBuffer.eraseToLineBeginningc s � fdd�t � j�D �� _d S )Nc s g | ]}� � � j��qS r �rf rY r` rJ r r rc s z/TerminalBuffer.eraseDisplay.<locals>.<listcomp>)rd rg rE rJ r rJ r � eraseDisplay~ s zTerminalBuffer.eraseDisplayc sB � � � � j� j d }� fdd�t|�D �� j� jd d �< d S )Nr" c s g | ]}� � � j��qS r r� r` rJ r r rc � s z4TerminalBuffer.eraseToDisplayEnd.<locals>.<listcomp>)r� rg rG rd rE )r rg r rJ r �eraseToDisplayEnd� s z TerminalBuffer.eraseToDisplayEndc s0 � � � � fdd�t� j�D �� jd � j�< d S )Nc s g | ]}� � � j��qS r r� r` rJ r r rc � s z:TerminalBuffer.eraseToDisplayBeginning.<locals>.<listcomp>)r� rd rG rE rJ r rJ r �eraseToDisplayBeginning� s z&TerminalBuffer.eraseToDisplayBeginningc C sD | j | j | j| j| �= | j | j �| �t| j| j |��� d S r )rE rG rF �extendrf rq rY rm r r r �deleteCharacter� s z TerminalBuffer.deleteCharacterc s6 � fdd�t |�D �� j� j� j�< � j� jd �= d S )Nc s g | ]}� � � j��qS r r� r` rJ r r rc � s z-TerminalBuffer.insertLine.<locals>.<listcomp>)rd rE rG rg rm r rJ r �
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deleteLine� s zTerminalBuffer.deleteLinec C s | j | jfS r ru rJ r r r �reportCursorPosition� s z#TerminalBuffer.reportCursorPositionc C s� t �dd�| _d | _| _i | _i | _| �t jjt jj g� d| _
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