3 5ÒÇI,$ã@s®ddlTddlTddlTddlTddlTddlTy ddlTWnek rPYnXefdd„Z efdd„Z efdd„Z efdd „Z efd d „Z efd d „Zdd„Zdd„Zdedddddfdd„Zdeddddddddddf dd„Zdefdd„Zdeddddddddddddfdd„Zdefdd„Zd2dd„Zd3d d!„Zdeefd"d#„Zdeefd$d%„Zefd&d'„Zefd(d)„Zefd*d+„Zefd,d-„ZGd.d/„d/eƒZ Gd0d1„d1e!ƒZ"dS)4é)Ú*ccs$||ƒ}x|jƒr|jƒVq WdS)z9 Scan a YAML stream and produce scanning tokens. N)Z check_tokenZ get_token)ÚstreamÚLoaderÚloader©rú#/p/zhu/06/nlp/nltk/yaml/__init__.pyÚscans rccs$||ƒ}x|jƒr|jƒVq WdS)z9 Parse a YAML stream and produce parsing events. N)Z check_eventZ get_event)rrrrrrÚparses r cCs||ƒ}|jƒr|jƒSdS)zj Parse the first YAML document in a stream and produce the corresponding representation tree. N)Ú check_nodeÚget_node)rrrrrrÚcompose sr ccs$||ƒ}x|jƒr|jƒVq WdS)zb Parse all YAML documents in a stream and produce corresponsing representation trees. N)r r )rrrrrrÚ compose_all)s r ccs$||ƒ}x|jƒr|jƒVq WdS)z\ Parse all YAML documents in a stream and produce corresponding Python objects. N)Ú check_dataÚget_data)rrrrrrÚload_all2s rcCs||ƒ}|jƒr|jƒSdS)zd Parse the first YAML document in a stream and produce the corresponding Python object. N)rr)rrrrrrÚload;srcCs t|tƒS)z~ Parse all YAML documents in a stream and produce corresponding Python objects. Resolve only basic YAML tags. )rÚ SafeLoader)rrrrÚ safe_load_allDsrcCs t|tƒS)z† Parse the first YAML document in a stream and produce the corresponding Python object. Resolve only basic YAML tags. )rr)rrrrÚ safe_loadLsrNc Cs„d}|dkrJyddlm} Wn tk r<ddlm} YnX| ƒ}|j}|||||||d} x|D]} | j| ƒqdW|r€|ƒSdS)zl Emit YAML parsing events into a stream. If stream is None, return the produced string instead. Nr)ÚStringIO)Ú canonicalÚindentÚwidthÚ allow_unicodeÚ line_break)Ú cStringIOrÚ ImportErrorÚgetvalueÚemit) ÚeventsrÚDumperrrrrrrrÚdumperÚeventrrrrTs   rzutf-8c Csžd} |dkrJyddlm}Wn tk r<ddlm}YnX|ƒ}|j} ||||||||| | | | d }|jƒx|D]}|j|ƒqvW|jƒ| rš| ƒSdS)z… Serialize a sequence of representation trees into a YAML stream. If stream is None, return the produced string instead. Nr)r) rrrrrÚencodingÚversionÚtagsÚexplicit_startÚ explicit_end)rrrrÚopenÚ serializeÚclose)Únodesrr rrrrrr#r&r'r$r%rrr!ÚnoderrrÚ serialize_alljs$    r-cKst|g|fd|i|—ŽS)zx Serialize a representation tree into a YAML stream. If stream is None, return the produced string instead. r )r-)r,rr Úkwdsrrrr)†sr)cCs¢d}|dkrJyddlm}Wn tk r<ddlm}YnX|ƒ}|j}||||||||| | | || | d }|jƒx|D]}|j|ƒqzW|jƒ|rž|ƒSdS)z Serialize a sequence of Python objects into a YAML stream. If stream is None, return the produced string instead. Nr)r) Ú default_styleÚdefault_flow_stylerrrrrr#r$r%r&r')rrrrr(Z representr*)Ú documentsrr r/r0rrrrrr#r&r'r$r%rrr!ÚdatarrrÚdump_alls(   r3cKst|g|fd|i|—ŽS)zr Serialize a Python object into a YAML stream. If stream is None, return the produced string instead. r )r3)r2rr r.rrrÚdump¬sr4cKst||fdti|—ŽS)z¡ Serialize a sequence of Python objects into a YAML stream. Produce only basic YAML tags. If stream is None, return the produced string instead. r )r3Ú SafeDumper)r1rr.rrrÚ safe_dump_all³sr6cKst|g|fdti|—ŽS)z” Serialize a Python object into a YAML stream. Produce only basic YAML tags. If stream is None, return the produced string instead. r )r3r5)r2rr.rrrÚ safe_dump»sr7cCs |j|||ƒ|j|||ƒdS)zÙ Add an implicit scalar detector. If an implicit scalar value matches the given regexp, the corresponding tag is assigned to the scalar. first is a sequence of possible initial characters or None. N)Úadd_implicit_resolver)ÚtagÚregexpÚfirstrr rrrr8Ãsr8cCs |j|||ƒ|j|||ƒdS)zÁ Add a path based resolver for the given tag. A path is a list of keys that forms a path to a node in the representation tree. Keys can be string values, integers, or None. N)Úadd_path_resolver)r9ÚpathÚkindrr rrrr<Îsr<cCs|j||ƒdS)z¯ Add a constructor for the given tag. Constructor is a function that accepts a Loader instance and a node object and produces the corresponding Python object. N)Úadd_constructor)r9Ú constructorrrrrr?Øsr?cCs|j||ƒdS)a  Add a multi-constructor for the given tag prefix. Multi-constructor is called for a node if its tag starts with tag_prefix. Multi-constructor accepts a Loader instance, a tag suffix, and a node object and produces the corresponding Python object. N)Úadd_multi_constructor)Z tag_prefixZmulti_constructorrrrrrAàsrAcCs|j||ƒdS)zÍ Add a representer for the given type. Representer is a function accepting a Dumper instance and an instance of the given data type and producing the corresponding representation node. N)Úadd_representer)Ú data_typeZ representerr rrrrBésrBcCs|j||ƒdS)zÞ Add a representer for the given type. Multi-representer is a function accepting a Dumper instance and an instance of the given data type or subtype and producing the corresponding representation node. N)Úadd_multi_representer)rCZmulti_representerr rrrrDòsrDcs eZdZdZ‡fdd„Z‡ZS)ÚYAMLObjectMetaclassz' The metaclass for YAMLObject. csNtt|ƒj|||ƒd|krJ|ddk rJ|jj|j|jƒ|jj||j ƒdS)NÚyaml_tag) ÚsuperrEÚ__init__Ú yaml_loaderr?rFÚ from_yamlÚ yaml_dumperrBÚto_yaml)ÚclsÚnameÚbasesr.)Ú __class__rrrHÿszYAMLObjectMetaclass.__init__)Ú__name__Ú __module__Ú __qualname__Ú__doc__rHÚ __classcell__rr)rPrrEûsrEc@sDeZdZdZeZeZeZ dZ dZ dd„Z e e ƒZ dd„Ze eƒZdS)Ú YAMLObjectza An object that can dump itself to a YAML stream and load itself from a YAML stream. NcCs |j||ƒS)zC Convert a representation node to a Python object. )Zconstruct_yaml_object)rMrr,rrrrJszYAMLObject.from_yamlcCs|j|j|||jdS)zC Convert a Python object to a representation node. )Z flow_style)Zrepresent_yaml_objectrFÚyaml_flow_style)rMr!r2rrrrLs zYAMLObject.to_yaml)rQrRrSrTrEÚ __metaclass__rrIr rKrFrWrJÚ classmethodrLrrrrrVsrV)N)N)#ÚerrorÚtokensrr+rr!Zcyamlrrrr r r rrrrr rr-r)r3r4r6r7r8r<r?rArBrDÚtyperEÚobjectrVrrrrÚsX