ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? K]­ÅàPl@s_ p:°¬ZR”´›JC[CS.h‹ƒïËœ«Æ]–÷ó‚wR×k7X‰k›‘´ù¦=¡«‰¨¨Â')—71ó’c‡Ðúµ `é.{§p¹ój\Ž{1h{o±Ý=áUÊïGÖŒõ–-BÄm+AZX¶¡ ïHðæ¥JmÙ;…ä¡Ÿˆ¦ ° äšiÉg«$üMk5¤L“’çÊvïâï ,=f“"íἊ5ô¬x6{ɏžID0e¸vçmi'︧ºð9$ò¹÷*£’9ÿ ²TÔ…×>JV¥}Œ}$p[bÔ®*[jzS*8 ”·T›Í–ñUîƒwo$áè=LT™ç—~ô·¤ÈÚ$榍q‰„+´kFm)ž‹©i–ËqÞŠ‰à¶ü( ‚•§ •°ò·‡#5ª•µÊ﯅¡X¨šÁ*F#TXJÊ ušJVÍ&=iÄs1‚3•'fý§5Ñ<=[íÞ­ PÚ;ѱÌ_~Ä££8rÞ ²w;’hDT°>ÈG¬8Á²ÚzŽ®ò®qZcqJêäÞ-ö[ܘbň±çb“Š¶31²n×iƒðÕ;1¶þÉ ªX‰,ßqÏ$>•î íZ¥Z 1{ç൵+ƒÕµ¥°T$§K]á»Ûï*·¤tMI’ÂZbŽÕiÒ˜}bÓ0£ª5›¨ [5Ž^ÝœWøÂÝh° ¢OWun£¤5 a2Z.G2³YL]jåtì”ä ÁÓ‘%"©<ÔúÊ°sº UZvä‡ÄiÆÒM .÷V·™ø#kèýiíÌ–ª)µT[)BˆõÑ xB¾B€ÖT¨.¥~ð@VĶr#¸ü*åZNDŽH;âi ],©£öØpù(šºãö¼T.uCê•4@ÿ GÕÛ)Cx›®0ø#:ÏðFÒbR\(€€Ä®fã4Þ‰Fä¯HXƒÅ,†öEÑÔÜ]Öv²?tLÃvBY£ú6Êu5ÅAQ³1‘’¬x–HŒÐ‡ ^ ¸KwJôÖŽ5×CÚ¨vÜ«/B0$×k°=ðbÇ(Ï)w±A†Á† 11Í=èQšµ626ŒÜ/`G«µ<}—-Ö7KEHÈÉðóȤmݱû±·ø«Snmá=“ä«šmݱŸ¡¶~ó·“äUóJæúòB|E LêŽy´jDÔ$G¢þÐñ7óR8ýÒ…Ç› WVe#·Ÿ p·Fx~•ݤF÷0Èÿ K¯æS<6’¡WШ; ´ÿ ¥Êø\Òuî†åÝ–VNœkÒ7oòX¨Á­Ø÷FÎÑä±g÷ÿ M~Çî=p,X´ ÝÌÚÅ‹’ÃjÖ.ØöÏñ qïQ¤ÓZE†° =6·]܈ s¸>v•Ž^Ý\wq9r‰Î\¸¡kURÒ$­*‹Nq?Þª*!sŠÆ:TU_u±T+øX¡ ®¹¡,ÄâÃBTsÜ$Ø›4m椴zÜK]’’›Pƒ @€#â˜`é¹=I‡fiV•Ôî“nRm+µFPOhÍ0B£ €+¬5c v•:P'ÒyÎ ‰V~‚Ó†ÖuókDoh$å\*ö%Ю=£«…aȼ½÷Û.-½VŒŠ¼'lyî±1¬3ó#ÞE¿ÔS¤gV£m›=§\û"—WU¤ÚǼÿ ÂnÁGŒÃ ‚õN D³õNÚíŒÕ;HôyÄÈ©P¹Ä{:?R‘Ô¨âF÷ø£bÅó® JS|‚R÷ivýáâ€Æé¡è³´IئÑT!§˜•Øª‚¬â@q€wnïCWÄ@JU€ê¯m6]Ï:£âx'+ÒðXvÓ¦Úm=–´7œ $ì“B£~p%ÕŸUþ« N@¼üï~w˜ñø5®—'Ôe»¤5ã//€ž~‰Tþ›Å7•#¤× Íö pÄ$ùeåì*«ÓŠEØWEÈsßg ¦ûvžSsLpºÊW–âµEWöˬH; ™!CYõZ ÃÄf æ#1W. \uWâ\,\Çf j’<qTbên›Î[vxx£ë 'ö¨1›˜ÀM¼Pÿ H)ƒêêŒA7s,|F“ 꺸k³9Ìö*ç®;Ö!Ö$Eiž•¹ÒÚ†ýóéÝû¾ÕS®ó$’NÝäŸz¤5r¦ãÄÃD÷Üø!°ø‡Ô&@m™Ì^Ãä­d q5Lnÿ N;.6½·N|#ä"1Nƒx“ã<3('&ñßt  ~ªu”1Tb㫨9ê–›–bìd$ߣ=#ÕãÒmU¯eí$EFù5ýYô櫨æ왍Ǘ±ssM]·á¿0ÕåJRÓªîiƒ+O58ÖñªŠÒx" \µâá¨i’¤i —Ö ” M+M¤ë9‚‰A¦°Qõ¾ßøK~¼Ã‘g…Ö´~÷Ï[3GUœÒ½#…kàÔ®Ò”‰³·dWV‰IP‰Ú8u¹”E ÖqLj¾êÕCBš{A^Âß;–¨`¯¬ìö ˼ ×tìø.tƐm*n¨y4o&Àx¥n¦×î‡aupáÛj8¿m›è¶ã!o½;ß0y^ý×^EÑ¿ÒjzŒ­)vÚÑnÄL …^ªô× ‡—‚3k Îý­hï]içå–îÏ*÷ñþ»Ô CÒjøjÍznˆ´ ¹#b'Fô‹ ‰v¥'’à'T´ƒHýÍ%M‰ ƒ&ÆÇŒï1 ‘ –Þ ‰i¬s žR-Ÿ kŠ¬á¬7:þ 0ŒÅÒÕ/aÙ¬ÃÝ#Úøœ ©aiVc‰. ¹¦ãµ” ›Yg¦›ÆÎýº°f³7ƒhá·¸­}&D9¡ÂsÉÙÞèŠõØàC™¨ñbFC|´Ü(ŸƒÚÒ-%»'a Ì¿)ËÇn¿úÿ ÞŽX…4ÊÅH^ôΑí@ù¹Eh¶“L8Çjù ¼ÎåVªóR©Ï5uà V4lZß®=€xÖŸ–ÑÈ ÷”¨°¾__yM1tÉ?uÆþIkÄgæ@þ[¢†°XÃJ£j·:nkÅ¢u ‘}âGzö­/IµèŠ¬¼48q¦F°ŽR¼=ûì{´¯RýicS ÕÛ íNtÍÙï£,w4rêì®»~x(©Uñ§#Ñ&œÕ¤>ÎåÍÓ9’Ö{9eV­[Öjâ²ãu]˜å2›qÑšÕJç0€sÄ|Êëè0튔bÁ>“{×_F`Ø©ºê:µä,v¤ðfc1±"«ÔÍän1#=· Âøv~H½ÐßA¾¿Ü€Óš]Õ; I¾÷ç‚Qi†î¹9ywÔKG˜áñ zQY—§ÃÕZ07§X‚ Áh;ÁM)iÌCH-¯T‘ë|A0{Ò½LÚ–TâÖkÜ’dÀ“rmm»”جPF³ÖcbE§T€ÒxKºû’Ó®7±²(\4ŽÃ¸Uu@j™yĵ;³µ!Á¢b.W¤=mõ´êµK k ¸K^ÜÛ#p*Ü14qkZç5ïë †°5Ï%ÍÛ<Õ¤×Ô¥ê†C Õ´¼ú$ƒÖ“”]Ù¬qÞÚ[4©ý!ûÏ—Áb쳐XµA¬â~`›Çr¸8ìùÝ䫦<>ä÷«?xs´ÇÑ /á;¹øüÊÈÙà{"@Žïzâ¬[âß‚ U_<ÇŸ½4èN˜ú61®qŠu ¦þF£»äJ_ˆÙÎ~ ÞAã–Ý„Ï—rŠD;xTž‘ô`É«…suãO`?³à™ô Lý#Íc5öoæØ‚y´´÷«ZR§<&JÇ+éâô´€i!Àˆ0æAoàðLèÖ-2ŸõW.’t^–(KÁmHµV@xÜÇy®Ñø­â^:Ú3w· 7½¹°ñ¸â¹®:',«Mœ—n­Á+Ãbš LÈ‘ÄnRÓÅœ%¦²‰¨ùQ:¤f‚ "PÕtô¸…cæl…&˜Ú˜Ôkv‹ž+vŠ,=¢v­6—Xy*¥t£«<™:“aîϲ=¦6rO]XI¿Œ÷¤zÚ­›¶ 6÷”w\d ü~v®ˆÌk«^m<ÿ ¢‰Õ\)ùºŽ;… lîÙÅEŠ®cѾ@vnMÏ,¼“ñ•ŽBxðÃzãÇç%3ˆ"}Ù•Åî> BÉú;Ò]V+P˜F_´ßé> Øše|ï‡ÄOmFæÇ ãqÞ$/xÐx­z`ï9"œÜij‚!7.\Td…9M‡•iŽ‹¾‘50ÞŽn¥ß4ÉôO ¹*í^QêËÜÇÌ8=Ž§s‰'ÂëÙ«á%Pú[O †ÅP¯VsŽ°.‰,kc¶ ¬A9n˜XÎ-ÞšN["¹QÕ‰ƒMýÁߺXJæÍaLj¾×Ãmã¾ãÚ uñÒþåQô¦¥ /ÄUx:‚ÍÜ’ Đ©ØÝ3V¨‰ÕnÐ6ó*óúK­«…c ¯U òhsý­jóÔj#,ímŒRµ«lbïUTŒÑ8†Ä0œÏr`ð¡¬É Ї ë"À² ™ 6¥ f¶ ¢ÚoܱԷ-<Àî)†a¶ž'Ú»¨TXqØæ¶÷YÄHy˜9ÈIW­YÀuMFë ºÏ’AqÌ4·/Ú †ô'i$øä­=Ä Ý|öK×40è|È6p‘0§)o¥ctî§H+CA-“ xØ|ÐXŠç l8íºð3Ø:³¤¬KX¯UÿÙ # The following YAML grammar is LL(1) and is parsed by a recursive descent # parser. # # stream ::= STREAM-START implicit_document? explicit_document* STREAM-END # implicit_document ::= block_node DOCUMENT-END* # explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* # block_node_or_indentless_sequence ::= # ALIAS # | properties (block_content | indentless_block_sequence)? # | block_content # | indentless_block_sequence # block_node ::= ALIAS # | properties block_content? # | block_content # flow_node ::= ALIAS # | properties flow_content? # | flow_content # properties ::= TAG ANCHOR? | ANCHOR TAG? # block_content ::= block_collection | flow_collection | SCALAR # flow_content ::= flow_collection | SCALAR # block_collection ::= block_sequence | block_mapping # flow_collection ::= flow_sequence | flow_mapping # block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END # indentless_sequence ::= (BLOCK-ENTRY block_node?)+ # block_mapping ::= BLOCK-MAPPING_START # ((KEY block_node_or_indentless_sequence?)? # (VALUE block_node_or_indentless_sequence?)?)* # BLOCK-END # flow_sequence ::= FLOW-SEQUENCE-START # (flow_sequence_entry FLOW-ENTRY)* # flow_sequence_entry? # FLOW-SEQUENCE-END # flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? # flow_mapping ::= FLOW-MAPPING-START # (flow_mapping_entry FLOW-ENTRY)* # flow_mapping_entry? # FLOW-MAPPING-END # flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? # # FIRST sets: # # stream: { STREAM-START } # explicit_document: { DIRECTIVE DOCUMENT-START } # implicit_document: FIRST(block_node) # block_node: { ALIAS TAG ANCHOR SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START } # flow_node: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START } # block_content: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR } # flow_content: { FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR } # block_collection: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START } # flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START } # block_sequence: { BLOCK-SEQUENCE-START } # block_mapping: { BLOCK-MAPPING-START } # block_node_or_indentless_sequence: { ALIAS ANCHOR TAG SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START BLOCK-ENTRY } # indentless_sequence: { ENTRY } # flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START } # flow_sequence: { FLOW-SEQUENCE-START } # flow_mapping: { FLOW-MAPPING-START } # flow_sequence_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY } # flow_mapping_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY } __all__ = ['Parser', 'ParserError'] from .error import MarkedYAMLError from .tokens import * from .events import * from .scanner import * class ParserError(MarkedYAMLError): pass class Parser: # Since writing a recursive-descendant parser is a straightforward task, we # do not give many comments here. DEFAULT_TAGS = { '!': '!', '!!': 'tag:yaml.org,2002:', } def __init__(self): self.current_event = None self.yaml_version = None self.tag_handles = {} self.states = [] self.marks = [] self.state = self.parse_stream_start def dispose(self): # Reset the state attributes (to clear self-references) self.states = [] self.state = None def check_event(self, *choices): # Check the type of the next event. if self.current_event is None: if self.state: self.current_event = self.state() if self.current_event is not None: if not choices: return True for choice in choices: if isinstance(self.current_event, choice): return True return False def peek_event(self): # Get the next event. if self.current_event is None: if self.state: self.current_event = self.state() return self.current_event def get_event(self): # Get the next event and proceed further. if self.current_event is None: if self.state: self.current_event = self.state() value = self.current_event self.current_event = None return value # stream ::= STREAM-START implicit_document? explicit_document* STREAM-END # implicit_document ::= block_node DOCUMENT-END* # explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* def parse_stream_start(self): # Parse the stream start. token = self.get_token() event = StreamStartEvent(token.start_mark, token.end_mark, encoding=token.encoding) # Prepare the next state. self.state = self.parse_implicit_document_start return event def parse_implicit_document_start(self): # Parse an implicit document. if not self.check_token(DirectiveToken, DocumentStartToken, StreamEndToken): self.tag_handles = self.DEFAULT_TAGS token = self.peek_token() start_mark = end_mark = token.start_mark event = DocumentStartEvent(start_mark, end_mark, explicit=False) # Prepare the next state. self.states.append(self.parse_document_end) self.state = self.parse_block_node return event else: return self.parse_document_start() def parse_document_start(self): # Parse any extra document end indicators. while self.check_token(DocumentEndToken): self.get_token() # Parse an explicit document. if not self.check_token(StreamEndToken): token = self.peek_token() start_mark = token.start_mark version, tags = self.process_directives() if not self.check_token(DocumentStartToken): raise ParserError(None, None, "expected '', but found %r" % self.peek_token().id, self.peek_token().start_mark) token = self.get_token() end_mark = token.end_mark event = DocumentStartEvent(start_mark, end_mark, explicit=True, version=version, tags=tags) self.states.append(self.parse_document_end) self.state = self.parse_document_content else: # Parse the end of the stream. token = self.get_token() event = StreamEndEvent(token.start_mark, token.end_mark) assert not self.states assert not self.marks self.state = None return event def parse_document_end(self): # Parse the document end. token = self.peek_token() start_mark = end_mark = token.start_mark explicit = False if self.check_token(DocumentEndToken): token = self.get_token() end_mark = token.end_mark explicit = True event = DocumentEndEvent(start_mark, end_mark, explicit=explicit) # Prepare the next state. self.state = self.parse_document_start return event def parse_document_content(self): if self.check_token(DirectiveToken, DocumentStartToken, DocumentEndToken, StreamEndToken): event = self.process_empty_scalar(self.peek_token().start_mark) self.state = self.states.pop() return event else: return self.parse_block_node() def process_directives(self): self.yaml_version = None self.tag_handles = {} while self.check_token(DirectiveToken): token = self.get_token() if token.name == 'YAML': if self.yaml_version is not None: raise ParserError(None, None, "found duplicate YAML directive", token.start_mark) major, minor = token.value if major != 1: raise ParserError(None, None, "found incompatible YAML document (version 1.* is required)", token.start_mark) self.yaml_version = token.value elif token.name == 'TAG': handle, prefix = token.value if handle in self.tag_handles: raise ParserError(None, None, "duplicate tag handle %r" % handle, token.start_mark) self.tag_handles[handle] = prefix if self.tag_handles: value = self.yaml_version, self.tag_handles.copy() else: value = self.yaml_version, None for key in self.DEFAULT_TAGS: if key not in self.tag_handles: self.tag_handles[key] = self.DEFAULT_TAGS[key] return value # block_node_or_indentless_sequence ::= ALIAS # | properties (block_content | indentless_block_sequence)? # | block_content # | indentless_block_sequence # block_node ::= ALIAS # | properties block_content? # | block_content # flow_node ::= ALIAS # | properties flow_content? # | flow_content # properties ::= TAG ANCHOR? | ANCHOR TAG? # block_content ::= block_collection | flow_collection | SCALAR # flow_content ::= flow_collection | SCALAR # block_collection ::= block_sequence | block_mapping # flow_collection ::= flow_sequence | flow_mapping def parse_block_node(self): return self.parse_node(block=True) def parse_flow_node(self): return self.parse_node() def parse_block_node_or_indentless_sequence(self): return self.parse_node(block=True, indentless_sequence=True) def parse_node(self, block=False, indentless_sequence=False): if self.check_token(AliasToken): token = self.get_token() event = AliasEvent(token.value, token.start_mark, token.end_mark) self.state = self.states.pop() else: anchor = None tag = None start_mark = end_mark = tag_mark = None if self.check_token(AnchorToken): token = self.get_token() start_mark = token.start_mark end_mark = token.end_mark anchor = token.value if self.check_token(TagToken): token = self.get_token() tag_mark = token.start_mark end_mark = token.end_mark tag = token.value elif self.check_token(TagToken): token = self.get_token() start_mark = tag_mark = token.start_mark end_mark = token.end_mark tag = token.value if self.check_token(AnchorToken): token = self.get_token() end_mark = token.end_mark anchor = token.value if tag is not None: handle, suffix = tag if handle is not None: if handle not in self.tag_handles: raise ParserError("while parsing a node", start_mark, "found undefined tag handle %r" % handle, tag_mark) tag = self.tag_handles[handle]+suffix else: tag = suffix #if tag == '!': # raise ParserError("while parsing a node", start_mark, # "found non-specific tag '!'", tag_mark, # "Please check 'http://pyyaml.org/wiki/YAMLNonSpecificTag' and share your opinion.") if start_mark is None: start_mark = end_mark = self.peek_token().start_mark event = None implicit = (tag is None or tag == '!') if indentless_sequence and self.check_token(BlockEntryToken): end_mark = self.peek_token().end_mark event = SequenceStartEvent(anchor, tag, implicit, start_mark, end_mark) self.state = self.parse_indentless_sequence_entry else: if self.check_token(ScalarToken): token = self.get_token() end_mark = token.end_mark if (token.plain and tag is None) or tag == '!': implicit = (True, False) elif tag is None: implicit = (False, True) else: implicit = (False, False) event = ScalarEvent(anchor, tag, implicit, token.value, start_mark, end_mark, style=token.style) self.state = self.states.pop() elif self.check_token(FlowSequenceStartToken): end_mark = self.peek_token().end_mark event = SequenceStartEvent(anchor, tag, implicit, start_mark, end_mark, flow_style=True) self.state = self.parse_flow_sequence_first_entry elif self.check_token(FlowMappingStartToken): end_mark = self.peek_token().end_mark event = MappingStartEvent(anchor, tag, implicit, start_mark, end_mark, flow_style=True) self.state = self.parse_flow_mapping_first_key elif block and self.check_token(BlockSequenceStartToken): end_mark = self.peek_token().start_mark event = SequenceStartEvent(anchor, tag, implicit, start_mark, end_mark, flow_style=False) self.state = self.parse_block_sequence_first_entry elif block and self.check_token(BlockMappingStartToken): end_mark = self.peek_token().start_mark event = MappingStartEvent(anchor, tag, implicit, start_mark, end_mark, flow_style=False) self.state = self.parse_block_mapping_first_key elif anchor is not None or tag is not None: # Empty scalars are allowed even if a tag or an anchor is # specified. event = ScalarEvent(anchor, tag, (implicit, False), '', start_mark, end_mark) self.state = self.states.pop() else: if block: node = 'block' else: node = 'flow' token = self.peek_token() raise ParserError("while parsing a %s node" % node, start_mark, "expected the node content, but found %r" % token.id, token.start_mark) return event # block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END def parse_block_sequence_first_entry(self): token = self.get_token() self.marks.append(token.start_mark) return self.parse_block_sequence_entry() def parse_block_sequence_entry(self): if self.check_token(BlockEntryToken): token = self.get_token() if not self.check_token(BlockEntryToken, BlockEndToken): self.states.append(self.parse_block_sequence_entry) return self.parse_block_node() else: self.state = self.parse_block_sequence_entry return self.process_empty_scalar(token.end_mark) if not self.check_token(BlockEndToken): token = self.peek_token() raise ParserError("while parsing a block collection", self.marks[-1], "expected , but found %r" % token.id, token.start_mark) token = self.get_token() event = SequenceEndEvent(token.start_mark, token.end_mark) self.state = self.states.pop() self.marks.pop() return event # indentless_sequence ::= (BLOCK-ENTRY block_node?)+ def parse_indentless_sequence_entry(self): if self.check_token(BlockEntryToken): token = self.get_token() if not self.check_token(BlockEntryToken, KeyToken, ValueToken, BlockEndToken): self.states.append(self.parse_indentless_sequence_entry) return self.parse_block_node() else: self.state = self.parse_indentless_sequence_entry return self.process_empty_scalar(token.end_mark) token = self.peek_token() event = SequenceEndEvent(token.start_mark, token.start_mark) self.state = self.states.pop() return event # block_mapping ::= BLOCK-MAPPING_START # ((KEY block_node_or_indentless_sequence?)? # (VALUE block_node_or_indentless_sequence?)?)* # BLOCK-END def parse_block_mapping_first_key(self): token = self.get_token() self.marks.append(token.start_mark) return self.parse_block_mapping_key() def parse_block_mapping_key(self): if self.check_token(KeyToken): token = self.get_token() if not self.check_token(KeyToken, ValueToken, BlockEndToken): self.states.append(self.parse_block_mapping_value) return self.parse_block_node_or_indentless_sequence() else: self.state = self.parse_block_mapping_value return self.process_empty_scalar(token.end_mark) if not self.check_token(BlockEndToken): token = self.peek_token() raise ParserError("while parsing a block mapping", self.marks[-1], "expected , but found %r" % token.id, token.start_mark) token = self.get_token() event = MappingEndEvent(token.start_mark, token.end_mark) self.state = self.states.pop() self.marks.pop() return event def parse_block_mapping_value(self): if self.check_token(ValueToken): token = self.get_token() if not self.check_token(KeyToken, ValueToken, BlockEndToken): self.states.append(self.parse_block_mapping_key) return self.parse_block_node_or_indentless_sequence() else: self.state = self.parse_block_mapping_key return self.process_empty_scalar(token.end_mark) else: self.state = self.parse_block_mapping_key token = self.peek_token() return self.process_empty_scalar(token.start_mark) # flow_sequence ::= FLOW-SEQUENCE-START # (flow_sequence_entry FLOW-ENTRY)* # flow_sequence_entry? # FLOW-SEQUENCE-END # flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? # # Note that while production rules for both flow_sequence_entry and # flow_mapping_entry are equal, their interpretations are different. # For `flow_sequence_entry`, the part `KEY flow_node? (VALUE flow_node?)?` # generate an inline mapping (set syntax). def parse_flow_sequence_first_entry(self): token = self.get_token() self.marks.append(token.start_mark) return self.parse_flow_sequence_entry(first=True) def parse_flow_sequence_entry(self, first=False): if not self.check_token(FlowSequenceEndToken): if not first: if self.check_token(FlowEntryToken): self.get_token() else: token = self.peek_token() raise ParserError("while parsing a flow sequence", self.marks[-1], "expected ',' or ']', but got %r" % token.id, token.start_mark) if self.check_token(KeyToken): token = self.peek_token() event = MappingStartEvent(None, None, True, token.start_mark, token.end_mark, flow_style=True) self.state = self.parse_flow_sequence_entry_mapping_key return event elif not self.check_token(FlowSequenceEndToken): self.states.append(self.parse_flow_sequence_entry) return self.parse_flow_node() token = self.get_token() event = SequenceEndEvent(token.start_mark, token.end_mark) self.state = self.states.pop() self.marks.pop() return event def parse_flow_sequence_entry_mapping_key(self): token = self.get_token() if not self.check_token(ValueToken, FlowEntryToken, FlowSequenceEndToken): self.states.append(self.parse_flow_sequence_entry_mapping_value) return self.parse_flow_node() else: self.state = self.parse_flow_sequence_entry_mapping_value return self.process_empty_scalar(token.end_mark) def parse_flow_sequence_entry_mapping_value(self): if self.check_token(ValueToken): token = self.get_token() if not self.check_token(FlowEntryToken, FlowSequenceEndToken): self.states.append(self.parse_flow_sequence_entry_mapping_end) return self.parse_flow_node() else: self.state = self.parse_flow_sequence_entry_mapping_end return self.process_empty_scalar(token.end_mark) else: self.state = self.parse_flow_sequence_entry_mapping_end token = self.peek_token() return self.process_empty_scalar(token.start_mark) def parse_flow_sequence_entry_mapping_end(self): self.state = self.parse_flow_sequence_entry token = self.peek_token() return MappingEndEvent(token.start_mark, token.start_mark) # flow_mapping ::= FLOW-MAPPING-START # (flow_mapping_entry FLOW-ENTRY)* # flow_mapping_entry? # FLOW-MAPPING-END # flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? def parse_flow_mapping_first_key(self): token = self.get_token() self.marks.append(token.start_mark) return self.parse_flow_mapping_key(first=True) def parse_flow_mapping_key(self, first=False): if not self.check_token(FlowMappingEndToken): if not first: if self.check_token(FlowEntryToken): self.get_token() else: token = self.peek_token() raise ParserError("while parsing a flow mapping", self.marks[-1], "expected ',' or '}', but got %r" % token.id, token.start_mark) if self.check_token(KeyToken): token = self.get_token() if not self.check_token(ValueToken, FlowEntryToken, FlowMappingEndToken): self.states.append(self.parse_flow_mapping_value) return self.parse_flow_node() else: self.state = self.parse_flow_mapping_value return self.process_empty_scalar(token.end_mark) elif not self.check_token(FlowMappingEndToken): self.states.append(self.parse_flow_mapping_empty_value) return self.parse_flow_node() token = self.get_token() event = MappingEndEvent(token.start_mark, token.end_mark) self.state = self.states.pop() self.marks.pop() return event def parse_flow_mapping_value(self): if self.check_token(ValueToken): token = self.get_token() if not self.check_token(FlowEntryToken, FlowMappingEndToken): self.states.append(self.parse_flow_mapping_key) return self.parse_flow_node() else: self.state = self.parse_flow_mapping_key return self.process_empty_scalar(token.end_mark) else: self.state = self.parse_flow_mapping_key token = self.peek_token() return self.process_empty_scalar(token.start_mark) def parse_flow_mapping_empty_value(self): self.state = self.parse_flow_mapping_key return self.process_empty_scalar(self.peek_token().start_mark) def process_empty_scalar(self, mark): return ScalarEvent(None, None, (True, False), '', mark, mark)