Package net.sf.saxon.expr
Class Token
java.lang.Object
net.sf.saxon.expr.Token
This class holds static constants and methods defining the lexical tokens used in
XPath and XQuery, and associated keywords.
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final int
Operator "and"static final int
":=" symbol (XQuery only)static final int
At token, "@"static final int
composite token invalid input: '<''attribute' QNAME> (XQuery only)static final int
Token representing the name of an axis and the following "::" symbolstatic final int
Keyword "case"static final int
operator "cast as"static final int
operator "castable as"static final int
"::" symbolstatic final int
":*" symbolstatic final int
Comma tokenstatic final int
"declare base-uri"static final int
"declare boundary-space"static final int
"declare construction"static final int
"declare copy-namespaces"static final int
"declare default"static final int
"define function"static final int
"declare namespace"static final int
"declare option"static final int
"declare xmlspace"static final int
"define variable"static final int
Keyword "default"static final int
Operator "div"static final int
"$" symbolstatic final int
"." symbolstatic final int
".." symbolstatic HashMap
Lookup table for composite (two-keyword) tokensstatic final int
composite token invalid input: '<''element' QNAME> (XQuery only)static final int
Keyword "else"static final int
Pseudo-token representing the end of the expressionstatic final int
Equals token ("=")static final int
Keyword "every"static final int
Operator "except"static final int
operator "eq"static final int
operator "ge"static final int
operator "gt"static final int
opeartor "le"static final int
operator "lt"static final int
operator "ne"static final int
Operator ">>"static final int
"for" keywordstatic final int
Token representing the name of a function and the following "(" symbolstatic final int
Operator ">="static final int
Operator ">"static final int
operator "idiv"static final int
Keyword "if"static final int
"import module"static final int
"import schema"static final int
Keyword "in"static final int
operator "instance of"static final int
Operator "intersect"static final int
Operator "is"static final int
composite token: invalid input: '<'keyword "{"> (XQuery only)(package private) static int
Constant identifying the token number of the last token to be classified as an operatorstatic final int
"{" symbol (XQuery only)static final int
Operator "invalid input: '<'="static final int
"let" keyword (XQuery only)static final int
Left parenthesisstatic final int
Left square bracketstatic final int
Operator "invalid input: '<'"static final int
Binary minus operatorstatic final int
Operator "mod"static final int
"module namespace"static final int
Multiply operator, "*" when used in an operator contextstatic final int
Name token (a QName, in general)static final int
Operator not-equals.static final int
Unary minus signstatic final int
Node kind, e.g.static final int
Numeric literalstatic final int
Operator "or"static final int
composite token invalid input: '<''pi' QNAME> (XQuery only)static final int
Operator "+"static final int
A token representing an XQuery pragma.static final int
Operator "invalid input: '<'invalid input: '<'"static final int
"prefix:*" tokenstatic final int
Question mark symbol.static final int
"}" symbol (XQuery only)static final int
Keyword "return"static final int
Right parenthesisstatic final int
Right square bracketstatic final int
Keyword "satisfies"static final int
semicolon separatorstatic final int
Forwards "/"static final int
Double forwards slash, "//"static final int
Keyword "some"static final int
"*" symbol when used as a wildcardstatic final int
String literalstatic final int
"*:" tokenstatic final int
"invalid input: '<'" at the start of a tag (XQuery only).static final int
Ketword "then"static final int
Operator "to"static String[]
The following strings are used to represent tokens in error messagesstatic final int
operator "treat as"static final int
Keyword "typeswitch"static final int
"union" or "|" tokenstatic final int
Pseudo-token representing the start of the expressionstatic final int
Various compound symbols supporting XQuery validation expressionstatic final int
static final int
static final int
Keyword "where"static final int
"xquery version" -
Method Summary
Modifier and TypeMethodDescriptionstatic final int
inverse
(int operator) Return the inverse of a relational operator, so that "a op b" can be rewritten as "b inverse(op) a"static boolean
isOrderedOperator
(int operator) static final int
negate
(int operator) Return the negation of a relational operator, so that "a op b" can be rewritten as not(b op' a)
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Field Details
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EOF
public static final int EOFPseudo-token representing the end of the expression- See Also:
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UNION
public static final int UNION"union" or "|" token- See Also:
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SLASH
public static final int SLASHForwards "/"- See Also:
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AT
public static final int ATAt token, "@"- See Also:
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LSQB
public static final int LSQBLeft square bracket- See Also:
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LPAR
public static final int LPARLeft parenthesis- See Also:
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EQUALS
public static final int EQUALSEquals token ("=")- See Also:
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COMMA
public static final int COMMAComma token- See Also:
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SLSL
public static final int SLSLDouble forwards slash, "//"- See Also:
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OR
public static final int OROperator "or"- See Also:
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AND
public static final int ANDOperator "and"- See Also:
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GT
public static final int GTOperator ">"- See Also:
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LT
public static final int LTOperator "invalid input: '<'"- See Also:
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GE
public static final int GEOperator ">="- See Also:
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LE
public static final int LEOperator "invalid input: '<'="- See Also:
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PLUS
public static final int PLUSOperator "+"- See Also:
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MINUS
public static final int MINUSBinary minus operator- See Also:
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MULT
public static final int MULTMultiply operator, "*" when used in an operator context- See Also:
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DIV
public static final int DIVOperator "div"- See Also:
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MOD
public static final int MODOperator "mod"- See Also:
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IS
public static final int ISOperator "is"- See Also:
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DOLLAR
public static final int DOLLAR"$" symbol- See Also:
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NE
public static final int NEOperator not-equals. That is, "!="- See Also:
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INTERSECT
public static final int INTERSECTOperator "intersect"- See Also:
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EXCEPT
public static final int EXCEPTOperator "except"- See Also:
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RETURN
public static final int RETURNKeyword "return"- See Also:
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THEN
public static final int THENKetword "then"- See Also:
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ELSE
public static final int ELSEKeyword "else"- See Also:
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WHERE
public static final int WHEREKeyword "where"- See Also:
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TO
public static final int TOOperator "to"- See Also:
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IN
public static final int INKeyword "in"- See Also:
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SOME
public static final int SOMEKeyword "some"- See Also:
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EVERY
public static final int EVERYKeyword "every"- See Also:
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SATISFIES
public static final int SATISFIESKeyword "satisfies"- See Also:
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FUNCTION
public static final int FUNCTIONToken representing the name of a function and the following "(" symbol- See Also:
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AXIS
public static final int AXISToken representing the name of an axis and the following "::" symbol- See Also:
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IF
public static final int IFKeyword "if"- See Also:
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PRECEDES
public static final int PRECEDESOperator "invalid input: '<'invalid input: '<'"- See Also:
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FOLLOWS
public static final int FOLLOWSOperator ">>"- See Also:
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COLONCOLON
public static final int COLONCOLON"::" symbol- See Also:
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COLONSTAR
public static final int COLONSTAR":*" symbol- See Also:
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INSTANCE_OF
public static final int INSTANCE_OFoperator "instance of"- See Also:
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CAST_AS
public static final int CAST_ASoperator "cast as"- See Also:
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TREAT_AS
public static final int TREAT_ASoperator "treat as"- See Also:
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FEQ
public static final int FEQoperator "eq"- See Also:
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FNE
public static final int FNEoperator "ne"- See Also:
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FGT
public static final int FGToperator "gt"- See Also:
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FLT
public static final int FLToperator "lt"- See Also:
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FGE
public static final int FGEoperator "ge"- See Also:
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FLE
public static final int FLEopeartor "le"- See Also:
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IDIV
public static final int IDIVoperator "idiv"- See Also:
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CASTABLE_AS
public static final int CASTABLE_ASoperator "castable as"- See Also:
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ASSIGN
public static final int ASSIGN":=" symbol (XQuery only)- See Also:
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LCURLY
public static final int LCURLY"{" symbol (XQuery only)- See Also:
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KEYWORD_CURLY
public static final int KEYWORD_CURLYcomposite token: invalid input: '<'keyword "{"> (XQuery only)- See Also:
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ELEMENT_QNAME
public static final int ELEMENT_QNAMEcomposite token invalid input: '<''element' QNAME> (XQuery only)- See Also:
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ATTRIBUTE_QNAME
public static final int ATTRIBUTE_QNAMEcomposite token invalid input: '<''attribute' QNAME> (XQuery only)- See Also:
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PI_QNAME
public static final int PI_QNAMEcomposite token invalid input: '<''pi' QNAME> (XQuery only)- See Also:
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TYPESWITCH
public static final int TYPESWITCHKeyword "typeswitch"- See Also:
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CASE
public static final int CASEKeyword "case"- See Also:
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NODEKIND
public static final int NODEKINDNode kind, e.g. "node()" or "comment()"- See Also:
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SUFFIX
public static final int SUFFIX"*:" token- See Also:
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XQUERY_VERSION
public static final int XQUERY_VERSION"xquery version"- See Also:
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DECLARE_NAMESPACE
public static final int DECLARE_NAMESPACE"declare namespace"- See Also:
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DECLARE_DEFAULT
public static final int DECLARE_DEFAULT"declare default"- See Also:
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DECLARE_CONSTRUCTION
public static final int DECLARE_CONSTRUCTION"declare construction"- See Also:
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DECLARE_BASEURI
public static final int DECLARE_BASEURI"declare base-uri"- See Also:
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DECLARE_BOUNDARY_SPACE
public static final int DECLARE_BOUNDARY_SPACE"declare boundary-space"- See Also:
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IMPORT_SCHEMA
public static final int IMPORT_SCHEMA"import schema"- See Also:
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IMPORT_MODULE
public static final int IMPORT_MODULE"import module"- See Also:
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DECLARE_VARIABLE
public static final int DECLARE_VARIABLE"define variable"- See Also:
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DECLARE_FUNCTION
public static final int DECLARE_FUNCTION"define function"- See Also:
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MODULE_NAMESPACE
public static final int MODULE_NAMESPACE"module namespace"- See Also:
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VALIDATE
public static final int VALIDATEVarious compound symbols supporting XQuery validation expression- See Also:
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VALIDATE_STRICT
public static final int VALIDATE_STRICT- See Also:
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VALIDATE_LAX
public static final int VALIDATE_LAX- See Also:
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DECLARE_ORDERING
public static final int DECLARE_ORDERING"declare xmlspace"- See Also:
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DECLARE_COPY_NAMESPACES
public static final int DECLARE_COPY_NAMESPACES"declare copy-namespaces"- See Also:
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DECLARE_OPTION
public static final int DECLARE_OPTION"declare option"- See Also:
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SEMICOLON
public static final int SEMICOLONsemicolon separator- See Also:
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LAST_OPERATOR
static int LAST_OPERATORConstant identifying the token number of the last token to be classified as an operator -
NAME
public static final int NAMEName token (a QName, in general)- See Also:
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STRING_LITERAL
public static final int STRING_LITERALString literal- See Also:
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RSQB
public static final int RSQBRight square bracket- See Also:
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RPAR
public static final int RPARRight parenthesis- See Also:
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DOT
public static final int DOT"." symbol- See Also:
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DOTDOT
public static final int DOTDOT".." symbol- See Also:
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STAR
public static final int STAR"*" symbol when used as a wildcard- See Also:
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PREFIX
public static final int PREFIX"prefix:*" token- See Also:
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NUMBER
public static final int NUMBERNumeric literal- See Also:
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FOR
public static final int FOR"for" keyword- See Also:
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DEFAULT
public static final int DEFAULTKeyword "default"- See Also:
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QMARK
public static final int QMARKQuestion mark symbol. That is, "?"- See Also:
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RCURLY
public static final int RCURLY"}" symbol (XQuery only)- See Also:
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LET
public static final int LET"let" keyword (XQuery only)- See Also:
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TAG
public static final int TAG"invalid input: '<'" at the start of a tag (XQuery only). The pseudo-XML syntax that follows is read character-by-character by the XQuery parser- See Also:
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PRAGMA
public static final int PRAGMAA token representing an XQuery pragma. This construct "(# .... #)" is regarded as a single token, for the QueryParser to sort out.- See Also:
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NEGATE
public static final int NEGATEUnary minus sign- See Also:
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tokens
The following strings are used to represent tokens in error messages -
doubleKeywords
Lookup table for composite (two-keyword) tokens -
UNKNOWN
public static final int UNKNOWNPseudo-token representing the start of the expression- See Also:
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Method Details
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inverse
public static final int inverse(int operator) Return the inverse of a relational operator, so that "a op b" can be rewritten as "b inverse(op) a" -
negate
public static final int negate(int operator) Return the negation of a relational operator, so that "a op b" can be rewritten as not(b op' a) -
isOrderedOperator
public static boolean isOrderedOperator(int operator)
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