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a �DOg 9 � @ sV d Z ddlZe�d�jZe�d�jZe�d�Ze�d�Ze�d�Z[G dd � d �Z dS ) z�Shared support for scanning document type declarations in HTML and XHTML. This module is used as a foundation for the html.parser module. It has no documented public API and should not be used directly. � Nz[a-zA-Z][-_.a-zA-Z0-9]*\s*z(\'[^\']*\'|"[^"]*")\s*z--\s*>z ]\s*]\s*>z]\s*>c @ s� e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd Z d d� Z d#dd�Z d$dd�Z dd� Z dd� Zdd� Zdd� Zd d � Zd d � Zd d!� Zd"S )%� ParserBaseziParser base class which provides some common support methods used by the SGML/HTML and XHTML parsers.c C s | j tu rtd��d S )Nz)_markupbase.ParserBase must be subclassed)� __class__r � RuntimeError��self� r �#/usr/lib64/python3.9/_markupbase.py�__init__ s �zParserBase.__init__c C s t d��d S )Nz.subclasses of ParserBase must override error())�NotImplementedError)r �messager r r �error s �zParserBase.errorc C s d| _ d| _d S )N� r ��lineno�offsetr r r r �reset$ s zParserBase.resetc C s | j | jfS )z&Return current line number and offset.r r r r r �getpos( s zParserBase.getposc C sb ||kr |S | j }|�d||�}|rN| j| | _|�d||�}||d | _n| j| | | _|S )N� r )�rawdata�countr �rindexr )r �i�jr Znlines�posr r r � updatepos0 s zParserBase.updatepos� c C s� | j }|d }|||� dks&J d��|||d � dkrB|d S |||d � dv rZdS t|�}|||d � dkr�| �|�S || d kr�| �|�S | �||�\}}|d k r�|S |d kr�d | _||k �r�|| }|dk�r||d |� }|d k�r| �|� n | �|� |d S |d v �r<t||�}|�s2dS |� � }n�|dv �rX| �||�\} }nt|| jv �rn|d }n^|d k�r�|d k�r�| � |d |�}n$|dv �r�| � d| � n | � d� n| � d|| � |d k r�|S q�dS )N� �<!z$unexpected call to parse_declarationr �>)�-r ���z--�[r Zdoctyper z"'Z4abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ> �linkZlinktype�element�attlistz&unsupported '[' char in %s declarationz"unexpected '[' char in declarationz!unexpected %r char in declaration) r �len� parse_comment�parse_marked_section� _scan_name�_decl_othercharsZ handle_decl� unknown_decl�_declstringlit_match�end�_parse_doctype_subsetr ) r r r r �nZdecltype�c�data�m�namer r r �parse_declaration@ s\ �z ParserBase.parse_declarationr c C s� | j }|||d � dks"J d��| �|d |�\}}|dk rB|S |dv r\t�||d �}n8|dv rvt�||d �}n | �d||d |� � d }|s�dS |r�|�d�}| �||d |� � |�d�S ) N� z<![z)unexpected call to parse_marked_section()r > ZincludeZcdata�ignoreZtempZrcdata> �else�ifZendifz+unknown status keyword %r in marked sectionr ) r r( �_markedsectionclose�search�_msmarkedsectioncloser �startr* r, )r r �reportr ZsectNamer �matchr r r r' � s" z ParserBase.parse_marked_sectionc C sj | j }|||d � dkr$| �d� t�||d �}|s<dS |r`|�d�}| �||d |� � |�d�S )N� �<!--z"unexpected call to parse_comment()r r )r r � _commentcloser9 r; Zhandle_commentr, )r r r< r r= r r r r r& � s zParserBase.parse_commentc C s* | j }t|�}|}||k �r&|| }|dk�r0|||d � }|dkrJdS |dkrp| �||d � | �d| � |d |kr�dS |d |kr�dS |||d � dkr�| j|d d �}|d k r|S q| �|d |�\}}|dkr�dS |d v�r| �||d � | �d | � t| d | �} | ||�}|d k �r$|S q|dk�r�|d |k�rLdS | �|d |�\}}|d k �rn|S || dk�r$|d }q|dk�r�|d }||k �r�|| �� �r�|d }�q�||k �r�|| dk�r�|S | �||� | �d� ndS q|�� �r |d }q| �||� | �d| � qdS )N�<r r r r z*unexpected char in internal subset (in %r)r> r? r )r< > Zentityr# r$ Znotationz)unknown declaration %r in internal subsetZ_parse_doctype_�%�;�]r z%unexpected char after internal subsetz%unexpected char %r in internal subset)r r% r r r& r( �getattr�isspace) r r � declstartposr r. r r/ �sr2 �methr r r r- � sp � z ParserBase._parse_doctype_subsetc C sF | � ||�\}}|dkr dS | j}d||d � v rB|�d|�d S dS )Nr r r )r( r �find)r r rG r2 r r r r r �_parse_doctype_element� s z!ParserBase._parse_doctype_elementc C s� | j }| �||�\}}|||d � }|dkr2dS |dkrB|d S | �||�\}}|dk r^|S |||d � }|dkrzdS |dkr�d||d � v r�|�d|�d }ndS |||d � �� r�|d }q�||d � s�dS n| �||�\}}|||d � }|�sdS |dv �rDt||�}|�r&|�� }ndS |||d � }|�sDdS |d k�r�||d � d k�rddS | �|d |�\}}|dk �r�|S |||d � }|�s�dS |dkrB|d S qBd S ) Nr r r r r �(�)�'"�#)r r( rJ rF r+ r, )r r rG r r2 r r/ r1 r r r �_parse_doctype_attlist sX z!ParserBase._parse_doctype_attlistc C s� | � ||�\}}|dk r |S | j}|||d � }|s:dS |dkrJ|d S |dv rnt||�}|sddS |�� }q"| � ||�\}}|dk r"|S q"d S )Nr r r r rN )r( r r+ r, )r r rG r2 r r r/ r1 r r r �_parse_doctype_notation> s" z"ParserBase._parse_doctype_notationc C s� | j }|||d � dkrR|d }|||d � }|s:dS |�� rP|d }q"qVq"n|}| �||�\}}|dk rr|S | j ||d � }|s�dS |dv r�t||�}|r�|�� }q�dS qr|dkr�|d S | �||�\}}|dk rr|S qrd S )Nr rB r r rN r )r rF r( r+ r, )r r rG r r r/ r2 r1 r r r �_parse_doctype_entityU s4 z ParserBase._parse_doctype_entityc C s� | j }t|�}||krdS t||�}|r\|�� }|�� }|t|� |krLdS |�� |�� fS | �||� | �d|||d � � d S )N)Nr zexpected name token at %r� ) r r% �_declname_match�group�strip�lowerr, r r )r r rG r r. r1 rH r2 r r r r( y s �zParserBase._scan_namec C s d S )Nr )r r0 r r r r* � s zParserBase.unknown_declN)r )r )�__name__� __module__� __qualname__�__doc__r r r r r r) r3 r' r& r- rK rP rQ rR r( r* r r r r r s" R C 9$r ) r[ �re�compiler= rT r+ r@ r8 r: r r r r r �<module> s
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