// $ANTLR 2.7.7 (2006-11-01): "DeclScanner.g" -> "DeclScanner.java"$
package org.exist.xquery.parser;
import org.exist.xquery.XPathException;
import antlr.TokenBuffer;
import antlr.TokenStreamException;
import antlr.TokenStreamIOException;
import antlr.ANTLRException;
import antlr.LLkParser;
import antlr.Token;
import antlr.TokenStream;
import antlr.RecognitionException;
import antlr.NoViableAltException;
import antlr.MismatchedTokenException;
import antlr.SemanticException;
import antlr.ParserSharedInputState;
import antlr.collections.impl.BitSet;
/**
* 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().
*/
public class DeclScanner extends antlr.LLkParser implements DeclScannerTokenTypes
{
private String encoding = null;
public String getEncoding() {
return encoding;
}
protected DeclScanner(TokenBuffer tokenBuf, int k) {
super(tokenBuf,k);
tokenNames = _tokenNames;
}
public DeclScanner(TokenBuffer tokenBuf) {
this(tokenBuf,1);
}
protected DeclScanner(TokenStream lexer, int k) {
super(lexer,k);
tokenNames = _tokenNames;
}
public DeclScanner(TokenStream lexer) {
this(lexer,1);
}
public DeclScanner(ParserSharedInputState state) {
super(state,1);
tokenNames = _tokenNames;
}
public final void versionDecl() throws RecognitionException, TokenStreamException, XPathException {
Token v = null;
Token enc = null;
match(LITERAL_xquery);
match(LITERAL_version);
v = LT(1);
match(STRING_LITERAL);
{
switch ( LA(1)) {
case LITERAL_encoding:
{
match(LITERAL_encoding);
enc = LT(1);
match(STRING_LITERAL);
encoding = enc.getText();
break;
}
case EOF:
{
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
throw new XPathException("Processing stopped");
}
public static final String[] _tokenNames = {
"<0>",
"EOF",
"<2>",
"NULL_TREE_LOOKAHEAD",
"QNAME",
"PREDICATE",
"FLWOR",
"PARENTHESIZED",
"ABSOLUTE_SLASH",
"ABSOLUTE_DSLASH",
"WILDCARD",
"PREFIX_WILDCARD",
"FUNCTION",
"UNARY_MINUS",
"UNARY_PLUS",
"XPOINTER",
"XPOINTER_ID",
"VARIABLE_REF",
"VARIABLE_BINDING",
"ELEMENT",
"ATTRIBUTE",
"ATTRIBUTE_CONTENT",
"TEXT",
"VERSION_DECL",
"NAMESPACE_DECL",
"DEF_NAMESPACE_DECL",
"DEF_COLLATION_DECL",
"DEF_FUNCTION_NS_DECL",
"GLOBAL_VAR",
"FUNCTION_DECL",
"PROLOG",
"OPTION",
"ATOMIC_TYPE",
"MODULE",
"ORDER_BY",
"GROUP_BY",
"POSITIONAL_VAR",
"MODULE_DECL",
"MODULE_IMPORT",
"SCHEMA_IMPORT",
"ATTRIBUTE_TEST",
"COMP_ELEM_CONSTRUCTOR",
"COMP_ATTR_CONSTRUCTOR",
"COMP_TEXT_CONSTRUCTOR",
"COMP_COMMENT_CONSTRUCTOR",
"COMP_PI_CONSTRUCTOR",
"COMP_NS_CONSTRUCTOR",
"COMP_DOC_CONSTRUCTOR",
"PRAGMA",
"GTEQ",
"SEQUENCE",
"\"xpointer\"",
"opening parenthesis '('",
"closing parenthesis ')'",
"name",
"\"xquery\"",
"\"version\"",
"semicolon ';'",
"\"module\"",
"\"namespace\"",
"=",
"string literal",
"\"declare\"",
"\"default\"",
"\"boundary-space\"",
"\"ordering\"",
"\"construction\"",
"\"base-uri\"",
"\"copy-namespaces\"",
"\"option\"",
"\"function\"",
"\"variable\"",
"\"import\"",
"\"encoding\"",
"\"collation\"",
"\"element\"",
"\"order\"",
"\"empty\"",
"\"greatest\"",
"\"least\"",
"\"preserve\"",
"\"strip\"",
"\"ordered\"",
"\"unordered\"",
"COMMA",
"\"no-preserve\"",
"\"inherit\"",
"\"no-inherit\"",
"dollar sign '$'",
"opening curly brace '{'",
"closing curly brace '}'",
"COLON",
"\"external\"",
"\"schema\"",
"\"as\"",
"\"at\"",
"\"empty-sequence\"",
"question mark '?'",
"wildcard '*'",
"+",
"\"item\"",
"\"for\"",
"\"let\"",
"\"some\"",
"\"every\"",
"\"if\"",
"\"typeswitch\"",
"\"update\"",
"\"replace\"",
"\"value\"",
"\"insert\"",
"\"delete\"",
"\"rename\"",
"\"with\"",
"\"into\"",
"\"preceding\"",
"\"following\"",
"\"where\"",
"\"return\"",
"\"in\"",
"\"by\"",
"\"stable\"",
"\"ascending\"",
"\"descending\"",
"\"group\"",
"\"satisfies\"",
"\"case\"",
"\"then\"",
"\"else\"",
"\"or\"",
"\"and\"",
"\"instance\"",
"\"of\"",
"\"treat\"",
"\"castable\"",
"\"cast\"",
"BEFORE",
"AFTER",
"\"eq\"",
"\"ne\"",
"\"lt\"",
"\"le\"",
"\"gt\"",
"\"ge\"",
">",
"!=",
"<",
"<=",
"\"is\"",
"\"isnot\"",
"fulltext operator '&='",
"fulltext operator '|='",
"\"to\"",
"-",
"\"div\"",
"\"idiv\"",
"\"mod\"",
"PRAGMA_START",
"pragma expression",
"\"union\"",
"union",
"\"intersect\"",
"\"except\"",
"single slash '/'",
"double slash '//'",
"\"text\"",
"\"node\"",
"\"attribute\"",
"\"comment\"",
"\"processing-instruction\"",
"\"document-node\"",
"\"document\"",
".",
"XML comment",
"processing instruction",
"opening brace '['",
"closing brace ']'",
"@ char",
"..",
"\"child\"",
"\"self\"",
"\"descendant\"",
"\"descendant-or-self\"",
"\"following-sibling\"",
"\"parent\"",
"\"ancestor\"",
"\"ancestor-or-self\"",
"\"preceding-sibling\"",
"DOUBLE_LITERAL",
"DECIMAL_LITERAL",
"INTEGER_LITERAL",
"\"schema-element\"",
"XML end tag",
"double quote '\\\"'",
"single quote '",
"QUOT_ATTRIBUTE_CONTENT",
"ESCAPE_QUOT",
"APOS_ATTRIBUTE_CONTENT",
"ESCAPE_APOS",
"ELEMENT_CONTENT",
"end of XML comment",
"end of processing instruction",
"CDATA section",
"\"collection\"",
"\"validate\"",
"start of processing instruction",
"CDATA section start",
"end of CDATA section",
"LETTER",
"DIGITS",
"HEX_DIGITS",
"NMSTART",
"NMCHAR",
"WS",
"XQuery comment",
"PREDEFINED_ENTITY_REF",
"CHAR_REF",
"S",
"NEXT_TOKEN",
"CHAR",
"BASECHAR",
"IDEOGRAPHIC",
"COMBINING_CHAR",
"DIGIT",
"EXTENDER"
};
}