o
i% @ sj d Z ddlmZ ddlmZ ddlmZmZmZ ddl m
Z
dgZ dZ dZ
dZd Zd ZG d
d de
Zd S ) ao
LongTurtle RDF graph serializer for RDFLib.
See for syntax specification.
This variant, longturtle as opposed to just turtle, makes some small format changes
to turtle - the original turtle serializer. It:
* uses PREFIX instead of @prefix
* uses BASE instead of @base
* adds a new line at RDF.type, or 'a'
* adds a newline and an indent for all triples with more than one object (object list)
* adds a new line and ';' for the last triple in a set with '.'
on the start of the next line
* uses default encoding (encode()) is used instead of "latin-1"
- Nicholas Car, 2023
)Error)RDF)BNodeLiteralURIRef )RecursiveSerializerLongTurtleSerializer Fc s e Zd ZdZdZ fddZ fddZ fddZd.d
d Z fd d
Z d/ddZ
dd Z dd Z dd Z
dd Zdd Zd0d d Zd0d d Zd d! Zd"d# Zd$d% Zd&d' Zd0d(d)Zd0d*d+Zd,d- Z ZS )1r
longturtlez c s: i | _ tt| | tjdi| _| d | _t | _
d S )Na) _ns_rewritesuperr __init__r typekeywordsresetstream_SPACIOUS_OUTPUT _spacious)selfstore __class__ `/var/www/edux/Edux_v2/venv/lib/python3.10/site-packages/rdflib/plugins/serializers/longturtle.pyr ' s
z LongTurtleSerializer.__init__c s |dkr
|d dks| j |||kr6|| jvr/d| }|| j v r*d| }|| j v s!|| j|< | j||}tt| || |S )N r _p)
namespacesgetr
r r addNamespace)r prefix namespacer r r r r! / s
z!LongTurtleSerializer.addNamespacec s$ t t| i | _d| _i | _d S )NF)r r r _shortNames_startedr
r r r r r G s
zLongTurtleSerializer.resetNc K s | || _|d ur|| _n | jjd ur| jj| _|d ur!|| _| | }| d}|D ]}| |r9q1|r=d}| |rI|sI|
d q1| d | _d S )NTF
) r r baser r
preprocess
orderSubjects
startDocumentisDone statementwrite endDocument) r r r( encodingspaciousargs
subjects_list firstTimesubjectr r r serializeM s,
z LongTurtleSerializer.serializec s t t| | t|D ]#\}}|| jv rq | j||tkd t|tr/|j r/| j|j t
d q |d }t|t rD| j | d7 < d S d S )N)
gen_prefixr )
r r preprocessTriple enumerater getQNameVERB
isinstancer datatype_GEN_QNAME_FOR_DTr _references)r tripleinoder r r r r8 k s
z%LongTurtleSerializer.preprocessTripleTc C s t |tsd S z
| jj||d}W n ty. | jj|}|d ur)||df}nY d S Y nw |\}}}|dr;d S | ||}d||f S )N)generater .z%s:%s)r< r r
compute_qname Exceptionr" endswithr! )r urir7 partspfxr" r# localr r r r: x s
z LongTurtleSerializer.getQNamec C sz d| _ t| j }| jr| | d| j |D ]\}}| | d||f q|r9| jr;| d d S d S d S )NTz
BASE <%s>
zPREFIX %s: <%s>
r' )r% sortedr itemsr( r. indentr )r ns_listr" rH r r r r+ s
z"LongTurtleSerializer.startDocumentc C s | j r
| d d S d S )Nr' )r r. r& r r r r/ s z LongTurtleSerializer.endDocumentc C s | | | |p| |S N) subjectDone s_squared s_defaultr r5 r r r r- s
z LongTurtleSerializer.statementc C sH | d| | |t | d| | | | d dS )Nr' z
.T)r. rN pathSUBJECT
predicateListrT r r r rS s
z LongTurtleSerializer.s_defaultc C sN | j | dks t|tsdS | d| d | j|dd | d dS )Nr Fr' z[]newlinez ;
.T)r? r< r r. rN rW rT r r r rR s
z LongTurtleSerializer.s_squaredFc C s0 | ||s| |||std|f d S d S )NzCannot serialize node '%s') p_squared p_defaultr r rB positionrY r r r rU s
zLongTurtleSerializer.pathc C s, |t kr |s | d | | || dS )N T)rV r. labelr\ r r r r[ s
z LongTurtleSerializer.p_defaultc sl |t jkrdS |tu r| jv r j| S t|tr%|jd fdddS |} ||tkp5| S )Nz()Tc s | tS rP )r: r> )dtr& r r s z,LongTurtleSerializer.label..) use_plainqname_callback)
r nilr; r r< r _literal_n3
relativizer: n3r rB r] r r& r r_ s
zLongTurtleSerializer.labelc C s t |tr|| jv s| j| dks|tkrdS | |rA| jd7 _| d | jd8 _| | | d| d d S |
| | d| d d | jd7 _| | | jd8 _| d| d d d S )
Nr Fr
z (
r' )z[
]T) r< r _serializedr? rV isValidListdepthr. doListrN rQ rW rh r r r rZ s(
z LongTurtleSerializer.p_squaredc C sv z| j |tjdu rW dS W n
ty Y dS w |r9|tjkr/tt| j |dkr/dS | j |tj }|s dS )zW
Checks if l is a valid RDF list, i.e. no nodes have other properties.
NFr
T)
r valuer firstrF rd lenlistpredicate_objectsrest)r l_r r r rl s "z LongTurtleSerializer.isValidListc C s d}|rD| j |tj}|d ur4|dkr | | d n
| d| d | j|tdd | | | j |tj }|d7 }|sd S d S )Nr r r' TrX )
r ro r rp r. rN rU OBJECTrQ rt )r ru rA itemr r r rn s
zLongTurtleSerializer.doListc C s | |}| |}t|dkrd S | | d | j|d dd | ||d |dd D ]}| d| d | j|dd | || q2| d d S )Nr r TrX z ;
z ;)buildPredicateHashsortPropertiesrq r. rN verb
objectList)r r5 rY
propertiespropList predicater r r rW s
z"LongTurtleSerializer.predicateListc C s | |t| d S rP )rU r; )r rB rY r r r rz s zLongTurtleSerializer.verbc C s t |}|dkr
d S |dkrdpd}| j|7 _d}|dkr2t|d ts0| d| d d}| j|d t|d |dd D ] }| d t|tsX| d| d | j|tdd qB| j|8 _d S )Nr r Fr' TrX z ,)rq rm r< r r. rN rU rv )r objectscountdepthmodfirst_nlobjr r r r{ s"
z LongTurtleSerializer.objectList)NNN)T)F)__name__
__module__ __qualname__
short_name indentStringr r! r r6 r8 r: r+ r/ r- rS rR rU r[ r_ rZ rl rn rW rz r{
__classcell__r r r r r # s.
N)__doc__rdflib.exceptionsr rdflib.namespacer rdflib.termr r r turtler __all__rV r; rv r> r r r r r r s