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XML

XML. document ::= prolog element Misc *. prolog ::= XMLDecl Misc* ( doctypedecl Misc*)?. XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDecl? S? '?>'. VersionInfo ::= S 'version' S? '=' S? ('1.1'|'1.0'|``1.1",|``1.0"). element ::= EmptyElemTag | STag content ETag.

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XML

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Presentation Transcript

  1. XML

  2. document ::= prologelementMisc* prolog ::= XMLDecl Misc* (doctypedecl Misc*)? XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDecl? S? '?>' VersionInfo ::= S 'version' S? '=' S? ('1.1'|'1.0'|``1.1",|``1.0") element ::= EmptyElemTag| STagcontent ETag STag ::= '<' Name (S Attribute)* S? '>' ETag ::= '</' Name S? '/>' EmptyElemTag::= '<' Name (S Attribute)* S? '/>' content ::= CharData?((element|Reference|CDSect|PI|Comment)CharData?)* Attribute ::= Name S? '=' S? AttValue Misc ::= Comment | PI | S S – “white space”

  3. DTD

  4. doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? ( '[' intSubset ']' S?)? intSubset :: = (markupdecl | DeclSep)* DeclSep ::= S | PEReference markupdecl ::= elementdecl | AttlistDecl | EntityDecl | NotationDecl | PI | Comment elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>' contentspec ::= 'EMPTY' | 'ANY' | Mixed | children children ::= (choice|seq) ('?' | '*' | '+')? choice ::= '(' S? cp (S? '|' S? cp)+ S? ')' cp ::= (Name | choice | seq) ('?' | '*' | '+')? seq ::= '(' cp ( S? ',' S? cp)* S? ')' Mixed ::= '(' S? '#PCDATA' ( S? '|' Name)* S? ')*' | '(' S? '#PCDATA' S? ')'

  5. doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? ( '[' intSubset ']' S?)? intSubset :: = (markupdecl | DeclSep)* markupdecl ::= elementdecl | AttlistDecl | EntityDecl | NotationDecl | PI | Comment AttlistDecl ::= '<ATTLIST' S Name AttDef* S? '>' AttDef ::= S Name S AttType S DefaultDecl AttType ::= 'CDATA' | 'ID' | 'IDREF' | 'IDREFS' | 'ENTITY’ | 'ENTITIES' | 'NMTOKEN' | 'NMTOKENS' |EnumeratedType EnumeratedType ::= NotationType | Enumeration NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')' Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')' DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | ( ('#FIXED' S)? AttValue

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