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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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character's attributes.
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Add a character attribute to a copy of this formatting state.
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An in-memory terminal emulator.
)s UP_ARROWs
DOWN_ARROWs RIGHT_ARROWs
LEFT_ARROWs HOMEs INSERTs DELETEs ENDs PGUPs PGDNs F1s F2s F3s F4s F5s F6s F7s F8s F9s F10s F11s F12s = object()�ascii� � �P � � c C s | j | | S r )�lines)r �x�yr r r � getCharacter� � zTerminalBuffer.getCharacterc C � | � � d S r )�reset�r r r r �connectionMade� � z TerminalBuffer.connectionMadec C s$ t |�dd��D ]}| �|� qdS )z�
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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r rQ rA r! N)rH � _scrollDown�string� printable�encode�width�nextLinerY �modes�getr �IRMrG rI �pop)r rU �chr r r rS � s
�z TerminalBuffer.insertAtCursorc s � fdd�t |�D �S )Nc s g | ] }� j � �� f�qS r )�voidrY ��.0�irN r r �
<listcomp>� s z-TerminalBuffer._emptyLine.<locals>.<listcomp>)�range�r r_ r rN r �
_emptyLine� � zTerminalBuffer._emptyLinec C sL | j d7 _ | j | jkr$| j d8 _ | jd= | j�| �| j�� d S d S )Nr! r )rI �heightrG r+ rm r_ rN r r r r[ � s �zTerminalBuffer._scrollDownc C sD | j d8 _ | j dk r d| _ | jd= | j�d| �| j�� d S d S )Nr! r ���)rI rG �insertrm r_ rN r r r � _scrollUp� s
�zTerminalBuffer._scrollUpr! c C � t d| j| �| _d S �Nr )�maxrI �r �nr r r �cursorUp� rn zTerminalBuffer.cursorUpc C s t | jd | j| �| _d S �Nr! )�minro rI rv r r r �
cursorDown� s zTerminalBuffer.cursorDownc C rs rt )ru rH rv r r r �cursorBackward� rn z TerminalBuffer.cursorBackwardc C s t | j| j| �| _d S r )rz r_ rH rv r r r �
cursorForward� � z TerminalBuffer.cursorForwardc C s || _ || _d S r �rH rI )r �column�liner r r �cursorPosition� s
z TerminalBuffer.cursorPositionc C s | j j| _| j j| _d S r )�homerH rI rN r r r �
cursorHome� s
zTerminalBuffer.cursorHomec C rL r )r[ rN r r r �index� rP zTerminalBuffer.indexc C rL r )rr rN r r r � reverseIndex� rP zTerminalBuffer.reverseIndexc C s d| _ | �� dS )zW
Update the cursor position attributes and scroll down if appropriate.
r N)rH r[ rN r r r r` � s zTerminalBuffer.nextLinec C s | j | jf| _d S r )rH rI � _savedCursorrN r r r �
saveCursor � zTerminalBuffer.saveCursorc C s | j \| _| _| ` d S r )r� rH rI rN r r r �
restoreCursor s z TerminalBuffer.restoreCursorc C s |D ]}d| j |< qd S )NT)ra �r ra r) r r r �setModes
s �zTerminalBuffer.setModesc C s, |D ]}z| j |= W q ty Y qw d S r )ra �KeyErrorr� r r r �
resetModes s ��zTerminalBuffer.resetModesc C s |D ]}d| j |< qdS )aH
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}
TN)� privateModesr� r r r �setPrivateModes s �z TerminalBuffer.setPrivateModesc C s, |D ]}z| j |= W q ty Y qw dS )z�
Disable the given modes.
@see: L{setPrivateModes}
@see: L{insults.ITerminalTransport.resetPrivateModes}
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z$TerminalBuffer.applicationKeypadModec C r� )N�numr� rN r r r �numericKeypadMode6 r� z TerminalBuffer.numericKeypadModec C s || j |< d S r )�charsets)r �charSet�whichr r r �selectCharacterSet9 rK z!TerminalBuffer.selectCharacterSetc C � t j| _d S r )r r> rW rN r r r �shiftIn< rP zTerminalBuffer.shiftInc C r� r )r �G1rW rN r r r �shiftOut? rP zTerminalBuffer.shiftOutc �. �j �tj�_ �j� � ��fdd�}|�_d S )Nc � � | � �` ��_d S r �rS rW �rU ��f�oldActiveCharsetr r r rS G �
z3TerminalBuffer.singleShift2.<locals>.insertAtCursor)rW r �G2rS �r rS r r� r � singleShift2B �
zTerminalBuffer.singleShift2c r� )Nc r� r r� r� r� r r rS S r� z3TerminalBuffer.singleShift3.<locals>.insertAtCursor)rW r �G3rS r� r r� r � singleShift3N r� zTerminalBuffer.singleShift3c G s |D ]�}|t jkrddddttd�| _q|t jkr d| jd< q|t jkr*d| jd< q|t jkr5d| jd< q|t jkr@d| jd< qzt |�}W n t
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attributes�ar& r r r �selectGraphicRenditionZ s@
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�� ��z%TerminalBuffer.selectGraphicRenditionc C s | � | j�| j| j< d S r )rm r_ rG rI rN r r r � eraseLine~ r~ zTerminalBuffer.eraseLinec C s, | j | j }| �|�| j| j | jd �< d S r )r_ rH rm rG rI rl r r r �eraseToLineEnd� s z TerminalBuffer.eraseToLineEndc C s* | � | jd �| j| j d | jd �< d S ry )rm rH rG rI rN r r r �eraseToLineBeginning� s *z#TerminalBuffer.eraseToLineBeginningc s � fdd�t � j�D �� _d S )Nc � g | ]}� � � j��qS r �rm r_ rg rN r r rj � � z/TerminalBuffer.eraseDisplay.<locals>.<listcomp>)rk ro rG rN r rN r � eraseDisplay� s zTerminalBuffer.eraseDisplayc sB � � � � j� j d }� fdd�t|�D �� j� jd d �< d S )Nr! c r� r r� rg rN r r rj � r� z4TerminalBuffer.eraseToDisplayEnd.<locals>.<listcomp>)r� ro rI rk rG )r ro r rN r �eraseToDisplayEnd� s *z TerminalBuffer.eraseToDisplayEndc s0 � � � � fdd�t� j�D �� jd � j�< d S )Nc r� r r� rg rN r r rj � r� z:TerminalBuffer.eraseToDisplayBeginning.<locals>.<listcomp>)r� rk rI rG rN r rN r �eraseToDisplayBeginning� s (z&TerminalBuffer.eraseToDisplayBeginningc C sD | j | j | j| j| �= | j | j �| �t| j| j |��� d S r )rG rI rH �extendrm rz r_ rv r r r �deleteCharacter� s *z TerminalBuffer.deleteCharacterc s6 � fdd�t |�D �� j� j� j�< � j� jd �= d S )Nc r� r r� rg rN r r rj � r� z-TerminalBuffer.insertLine.<locals>.<listcomp>)rk rG rI ro rv r rN r �
insertLine� s $zTerminalBuffer.insertLinec s6 � j � j� j| �= � j �� fdd�t|�D �� d S )Nc r� r r� rg rN r r rj � r� z-TerminalBuffer.deleteLine.<locals>.<listcomp>)rG rI r� rk rv r rN r �
deleteLine� s "zTerminalBuffer.deleteLinec C s | j | jfS r r rN r r r �reportCursorPosition� rP z#TerminalBuffer.reportCursorPositionc C s� t �dd�| _d | _| _i | _i | _| �t jjt jj g� d| _
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td�| _t j t jt jt jt jt jt jt ji| _| �� d S )Nr r� Fr� )r �Vectorr� rH rI ra r� r� � AUTO_WRAP� CURSOR_MODE�
numericKeypadr> rW r0 r2 rX �CS_USr� r� � CS_ALTERNATEr� �CS_ALTERNATE_SPECIALr� r� rN r r r rM � s, �� � zTerminalBuffer.resetc C s t dt|�� d S )NzCould not handle)�print�repr)r �bufr r r �unhandledControlSequence� r� z'TerminalBuffer.unhandledControlSequencec C sr g }| j D ].}g }d}|D ]\}}|| jur |�|� t|�}q
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zTerminalBuffer.__bytes__c C � t d��)Nz%Unimplemented: TerminalBuffer.getHost��NotImplementedErrorrN r r r �getHost� � zTerminalBuffer.getHostc C r� )Nz%Unimplemented: TerminalBuffer.getPeerr� rN r r r �getPeer� r� zTerminalBuffer.getPeerc C r� )Nz,Unimplemented: TerminalBuffer.loseConnectionr� rN r r r �loseConnection� r� z TerminalBuffer.loseConnectionc C r� )Nz+Unimplemented: TerminalBuffer.writeSequencer� �r rT r r r �
writeSequence� r� z TerminalBuffer.writeSequencec C r� )Nz5Unimplemented: TerminalBuffer.horizontalTabulationSetr� rN r r r �horizontalTabulationSet� s �z&TerminalBuffer.horizontalTabulationSetc C r� )Nz-Unimplemented: TerminalBuffer.tabulationClearr� rN r r r �tabulationClear� r� z TerminalBuffer.tabulationClearc C r� )Nz0Unimplemented: TerminalBuffer.tabulationClearAllr� rN r r r �tabulationClearAll� r� z!TerminalBuffer.tabulationClearAllTc C r� )Nz.Unimplemented: TerminalBuffer.doubleHeightLiner� )r �topr r r �doubleHeightLine� r� z TerminalBuffer.doubleHeightLinec C r� )Nz-Unimplemented: TerminalBuffer.singleWidthLiner� rN r r r �singleWidthLine� r� z TerminalBuffer.singleWidthLinec C r� )Nz-Unimplemented: TerminalBuffer.doubleWidthLiner� rN r r r �doubleWidthLine� r� z TerminalBuffer.doubleWidthLineN)r! )T)Hr9 r: r; r< �keyID� execBytes�decode�execStr�exec�TAB� BACKSPACEr_ ro r� �objectrf r r� rJ rO rV rY rS rm r[ rr rx r{ r| r} r� r� r� r� r` r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� rM r� r� r� r� r� r� r� r� r� r� r� r� r r r r r@ x s�
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