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*S*mall, *U*ncomplicated *X*ML.
This is a very simple implementation of XML/HTML as a network
protocol. It is not at all clever. Its main features are that it
does not:
- support namespaces
- mung mnemonic entity references
- validate
- perform *any* external actions (such as fetching URLs or writing files)
under *any* circumstances
- has lots and lots of horrible hacks for supporting broken HTML (as an
option, they're not on by default).
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identCharsrX rp rW rE � gotTagEnd� gotTagStartrq r[ r� rS rs r r r � do_tagstart� sJ
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zXMLParser.do_tagstartc C s | j |7 _ d S r �rS rs r r r �begin_unentity s zXMLParser.begin_unentityc C s | j |7 _ dS )NrS r� rs r r r � do_unentity s zXMLParser.do_unentityc C � | � | j� d S r ��gotTextrS r8 r r r � end_unentity � zXMLParser.end_unentityc C �
|| _ d S r )�cdatabufrs r r r �begin_expectcdata rz zXMLParser.begin_expectcdatac C sj | j |7 _ | j }d}t|�t|�kr%|�|�rd S | jr dS | �d� ||kr.d| _ dS | �d� d S )Nz[CDATA[r� zMal-formed CDATA headerrw �cdata)r� rN r` rq rE )r3 rh �cdb�cdr r r �do_expectcdata" s
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zXMLParser.end_cdatac C s� |� � s|tv r| jdkrdS | jd dv rdS dS |�� r d S |dkr6| �| j| j� | j r2dp5| �� S |d kr<d
S | jrAd S | �d | � d S ) N�!DOCTYPE�doctyper r� r� �attrnamer� rS r� r� zUnexpected character: %r) r� r� rX rp r� rY rq r[ rE rs r r r �do_attrs@ s
zXMLParser.do_attrsc C r� r �r� rs r r r �
begin_doctypeU rz zXMLParser.begin_doctypec C � |dkrdS | j |7 _ d S �Nr� rS r� rs r r r �
do_doctypeX � zXMLParser.do_doctypec C s | � | j� d | _d S r )�
gotDoctyper� r8 r r r � end_doctype] r� zXMLParser.end_doctypec C s$ |dkr| j s
| js dS | �� S d S r� )rW rq r[ rs r r r � do_waitforgta s
�zXMLParser.do_waitforgtc C � || _ d| _d S �Nr )r� �_attrname_termtagrs r r r �begin_attrnameg �
zXMLParser.begin_attrnamec C s� |� � s|tv r| j|7 _d S |dkrdS |�� r dS | jrg|dv r&dS |tv s.|� � r7| j|7 _d S |dkr@d| _d S |dkred | _| j| j| j< | � | j
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beforeattrval�beforeeq�"'�attrvalr� r r� �TruerS zInvalid attribute name: � )r� r� r� rp rq �lenientIdentCharsr� r� rY r� rX r� r[ rE rs r r r � do_attrnamek s4 zXMLParser.do_attrnamec C s� |dv rdS |� � r d S | jr9|tv s|�� rdS |dkr3d| _| j| j| j< | �| j| j� | � � S |dkr9d S | �
d| � d S )Nr� r� � messyattrr� r� �\zEInvalid initial attribute value: %r; Attribute values must be quoted.) rp rq r� r� r� rY r� r� rX r[ rE rs r r r �do_beforeattrval� s& ��zXMLParser.do_beforeattrvalrw c C ru r� )�_beforeeq_termtagrs r r r �begin_beforeeq� rz zXMLParser.begin_beforeeqc C s� |dkrdS |� � r d S | jrQ|�� s|tv r#d| _| j| j| j< dS |dkrHd| _| j| j| j< | �| j| j� | j rD| �
| j� dS | � � S |dkrQd| _ d S | � d � d S )
Nr� r� r� r� r� rS r� r zInvalid attribute)
rp rq r� r� r� rY r� r� rX r� r� r[ rE rs r r r � do_beforeeq� s* zXMLParser.do_beforeeqc C r� rv �� quotetyper� rs r r r �
begin_attrval� r� zXMLParser.begin_attrvalc C s || j krdS | j|7 _d S )Nr� r� rs r r r �
do_attrval� s
zXMLParser.do_attrvalc C s | j | j| j< d | _| _ d S rv �r� rY r� r8 r r r � end_attrval� s zXMLParser.end_attrvalc C r� r )r� rs r r r �begin_messyattr� rz zXMLParser.begin_messyattrc C s� |� � rdS |dkr9d}| j�d�r d}| jd d� | _| j| j| j< | �| j| j� |r5| �| j� dS | �� S | j|7 _d S )Nr� r� r r� r ���rS ) rp r� r| rY r� r� rX r� r[ )r3 rh �endTagr r r � do_messyattr� s zXMLParser.do_messyattrc C s | j r | j | j| j< d S d S r r� r8 r r r �
end_messyattr� s �zXMLParser.end_messyattrc C ru r� )�_after_slash_closedrs r r r �begin_afterslash� rz zXMLParser.begin_afterslashc C sR | j r| �d� |dkr| jrd S | �d� d| _ | �| j| j� | �| j� dS )Nz
Mal-formedr� zNo data allowed after '/'r rS )r� rE rq r� rX rY r� rs r r r �
do_afterslash� s
zXMLParser.do_afterslashc C s | j r | j | _| ` d S d| _d S rv )rr rS rs r r r rZ � s
zXMLParser.begin_bodydatac C s* |dkrdS |dkr dS | j |7 _ d S )Nrn ro �&� entityrefr� rs r r r � do_bodydata� s
zXMLParser.do_bodydatac C r� rv r� r8 r r r � end_bodydata r� zXMLParser.end_bodydatac C r� )Nrn �waitscriptendtagr� rs r r r �do_waitforendscript r� z XMLParser.do_waitforendscriptc C s d| _ d| _d| _d S r )� temptagdatarX rW rs r r r �begin_waitscriptendtag rC z XMLParser.begin_waitscriptendtagc C s� | j |7 _ |dkrd| _d S | js | jd| j 7 _dS |�� s'|tv rU| j|7 _d�| j�s@| jd| j 7 _dS | jdkrS| �| j� | �| j� dS d S |� � r[dS | jd| j 7 _dS )Nr� Trn rV rT r� r� )
r� rW rS r� r� rX r` r� r� rp rs r r r �do_waitscriptendtag s(
�z XMLParser.do_waitscriptendtagc C s d| _ d| _d S rv )�erefbuf� erefextrars r r r �begin_entityref7 r� zXMLParser.begin_entityrefc C s~ |� � s|dkr0| jr)| jr| jdkr| j| _d| _|dkr dS | j|7 _dS | �d� d S |dkr=| j|7 _d S dS )Nrn �ampro �
spacebodydatazBad entity reference�;rS )rp rq r� r� rE rs r r r � do_entityref; s zXMLParser.do_entityrefc C r� r )�gotEntityReferencer� r8 r r r �
end_entityrefM r� zXMLParser.end_entityrefc C s | j | _d | _ d S r )r� rS rs r r r �begin_spacebodydataR s
z XMLParser.begin_spacebodydatac C s t d||� dS )zCEncountered an opening tag.
Default behaviour is to print.r\ N��print)r3 r# �
attributesr r r r� [ � zXMLParser.gotTagStartc C � t dt|�� dS )z8Encountered text
Default behaviour is to print.ztext:N�r� �repr)r3 rP r r r r� a s zXMLParser.gotTextc C s t d| � dS )zMEncountered mnemonic entity reference
Default behaviour is to print.zentityRef: &%s;Nr� )r3 � entityRefr r r r� g r� z XMLParser.gotEntityReferencec C r )z=Encountered comment.
Default behaviour is to ignore.Nr )r3 r� r r r r} m s zXMLParser.gotCommentc C s | � |� dS )zJEncountered CDATA
Default behaviour is to call the gotText methodN)r� )r3 r� r r r r� s � zXMLParser.gotCDatac C r� )z�Encountered DOCTYPE
This is really grotty: it basically just gives you everything between
'<!DOCTYPE' and '>' as an argument.
r� Nr� )r3 r� r r r r� y s zXMLParser.gotDoctypec C s t d|� dS )z?Encountered closing tag
Default behaviour is to print.�endNr� )r3 r# r r r r� � r� zXMLParser.gotTagEnd)Dr: r; r< r_ rA r/ rq rO rr rB rD rE rL rR r[ rj rm rt ry 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� rZ r� r� r� r� r� r� r� r� r� �do_spacebodydata�end_spacebodydatar� r� r� r} r� r� r� r r r r r> Q s� .
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