org.exist.xquery.parser
Class DeclScanner

java.lang.Object
  antlr.Parser
      antlr.LLkParser
          org.exist.xquery.parser.DeclScanner

All Implemented Interfaces:

DeclScannerTokenTypes

public class DeclScanner
extends antlr.LLkParser
implements DeclScannerTokenTypes

Try to read the XQuery declaration. The purpose of this class is to determine the content encoding of an XQuery. It just reads until it finds an XQuery declaration and throws an XPathException afterwards. It also throws a RecognitionException if something else than a comment, a pragma or an XQuery declaration is found. The declared encoding can then be retrieved from getEncoding().

Field Summary

static java.lang.String[]

_tokenNames

Fields inherited from interface org.exist.xquery.parser.DeclScannerTokenTypes

ABSOLUTE_DSLASH, ABSOLUTE_SLASH, AFTER, ANDEQ, APOS, APOS_ATTRIBUTE_CONTENT, AT, ATOMIC_TYPE, ATTRIBUTE, ATTRIBUTE_CONTENT, ATTRIBUTE_TEST, BASECHAR, BEFORE, CHAR, CHAR_REF, COLON, COMBINING_CHAR, COMMA, COMP_ATTR_CONSTRUCTOR, COMP_COMMENT_CONSTRUCTOR, COMP_DOC_CONSTRUCTOR, COMP_ELEM_CONSTRUCTOR, COMP_NS_CONSTRUCTOR, COMP_PI_CONSTRUCTOR, COMP_TEXT_CONSTRUCTOR, DECIMAL_LITERAL, DEF_COLLATION_DECL, DEF_FUNCTION_NS_DECL, DEF_NAMESPACE_DECL, DIGIT, DIGITS, DOLLAR, DOUBLE_LITERAL, DSLASH, ELEMENT, ELEMENT_CONTENT, END_TAG_START, EOF, EQ, ESCAPE_APOS, ESCAPE_QUOT, EXPR_COMMENT, EXTENDER, FLWOR, FUNCTION, FUNCTION_DECL, GLOBAL_VAR, GT, GTEQ, HEX_DIGITS, IDEOGRAPHIC, INTEGER_LITERAL, LCURLY, LETTER, LITERAL_ancestor, LITERAL_and, LITERAL_as, LITERAL_ascending, LITERAL_at, LITERAL_attribute, LITERAL_by, LITERAL_case, LITERAL_cast, LITERAL_castable, LITERAL_child, LITERAL_collation, LITERAL_collection, LITERAL_comment, LITERAL_construction, LITERAL_declare, LITERAL_default, LITERAL_delete, LITERAL_descendant, LITERAL_descending, LITERAL_div, LITERAL_document, LITERAL_element, LITERAL_else, LITERAL_empty, LITERAL_encoding, LITERAL_eq, LITERAL_every, LITERAL_except, LITERAL_external, LITERAL_following, LITERAL_for, LITERAL_function, LITERAL_ge, LITERAL_greatest, LITERAL_gt, LITERAL_idiv, LITERAL_if, LITERAL_import, LITERAL_in, LITERAL_inherit, LITERAL_insert, LITERAL_instance, LITERAL_intersect, LITERAL_into, LITERAL_is, LITERAL_isnot, LITERAL_item, LITERAL_le, LITERAL_least, LITERAL_let, LITERAL_lt, LITERAL_mod, LITERAL_module, LITERAL_namespace, LITERAL_ne, LITERAL_node, LITERAL_of, LITERAL_option, LITERAL_or, LITERAL_order, LITERAL_ordered, LITERAL_ordering, LITERAL_parent, LITERAL_preceding, LITERAL_preserve, LITERAL_rename, LITERAL_replace, LITERAL_return, LITERAL_satisfies, LITERAL_schema, LITERAL_self, LITERAL_some, LITERAL_strip, LITERAL_text, LITERAL_then, LITERAL_to, LITERAL_treat, LITERAL_typeswitch, LITERAL_union, LITERAL_unordered, LITERAL_update, LITERAL_validate, LITERAL_value, LITERAL_variable, LITERAL_version, LITERAL_where, LITERAL_with, LITERAL_xpointer, LITERAL_xquery, LPAREN, LPPAREN, LT, LTEQ, MINUS, MODULE, MODULE_DECL, MODULE_IMPORT, NAMESPACE_DECL, NCNAME, NEQ, NEXT_TOKEN, NMCHAR, NMSTART, NULL_TREE_LOOKAHEAD, OPTION, ORDER_BY, OREQ, PARENT, PARENTHESIZED, PLUS, POSITIONAL_VAR, PRAGMA, PRAGMA_CONTENT, PRAGMA_QNAME, PREDEFINED_ENTITY_REF, PREDICATE, PREFIX_WILDCARD, PROLOG, QNAME, QUESTION, QUOT, QUOT_ATTRIBUTE_CONTENT, RCURLY, RPAREN, RPPAREN, SCHEMA_IMPORT, SELF, SEMICOLON, SLASH, STAR, STRING_LITERAL, TEXT, UNARY_MINUS, UNARY_PLUS, UNION, VARIABLE_BINDING, VARIABLE_REF, VERSION_DECL, WILDCARD, WS, XML_CDATA, XML_CDATA_END, XML_CDATA_START, XML_COMMENT, XML_COMMENT_END, XML_PI, XML_PI_END, XML_PI_START, XPOINTER, XPOINTER_ID

Constructor Summary

DeclScanner(antlr.ParserSharedInputState state)

DeclScanner(antlr.TokenBuffer tokenBuf)

DeclScanner(antlr.TokenStream lexer)

Method Summary

java.lang.String	getEncoding()
void	versionDecl()

Methods inherited from class antlr.LLkParser

consume, LA, LT, traceIn, traceOut

Methods inherited from class antlr.Parser

addMessageListener, addParserListener, addParserMatchListener, addParserTokenListener, addSemanticPredicateListener, addSyntacticPredicateListener, addTraceListener, consumeUntil, consumeUntil, getAST, getASTFactory, getFilename, getInputState, getTokenName, getTokenNames, getTokenTypeToASTClassMap, isDebugMode, mark, match, match, matchNot, panic, removeMessageListener, removeParserListener, removeParserMatchListener, removeParserTokenListener, removeSemanticPredicateListener, removeSyntacticPredicateListener, removeTraceListener, reportError, reportError, reportWarning, rewind, setASTFactory, setASTNodeClass, setASTNodeType, setDebugMode, setFilename, setIgnoreInvalidDebugCalls, setInputState, setTokenBuffer, traceIndent

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_tokenNames

public static final java.lang.String[] _tokenNames

Constructor Detail

DeclScanner

public DeclScanner(antlr.TokenBuffer tokenBuf)

DeclScanner

public DeclScanner(antlr.TokenStream lexer)

DeclScanner

public DeclScanner(antlr.ParserSharedInputState state)

Method Detail

getEncoding

public java.lang.String getEncoding()

versionDecl

public final void versionDecl()
                       throws antlr.RecognitionException,
                              antlr.TokenStreamException,
                              XPathException

Throws:

antlr.RecognitionException

antlr.TokenStreamException

XPathException