Package org.basex.query

Class QueryParser

java.lang.Object

org.basex.util.InputParser

org.basex.query.QueryParser

public class QueryParser
extends InputParser

Parser for XQuery expressions.

Author:

BaseX Team 2005-22, BSD License, Christian Gruen

Field Summary

Fields

Modifier and Type	Field	Description
TokenSet	moduleURIs	URIs of modules loaded by the current file.
QueryContext	qc	Query context.
StaticContext	sc	Static context.

Fields inherited from class org.basex.util.InputParser

file, input, length, mark, pos

Method Summary

Modifier and Type	Method	Description
QueryException	error(QueryError error, InputInfo ii, Object... arg)	Creates the specified error.
static boolean	isLibrary(String query)	Checks if the specified XQuery string is a library module.
void	module(String path, String uri, InputInfo ii)	Parses the specified module, checking function and variable references at the end.
static String	removeComments(String query, int max)	Removes comments from the specified string and returns the first characters of a query.

Methods inherited from class org.basex.util.InputParser

consume, consume, consume, curr, curr, found, info, mark, more, next, quote, remaining

Methods inherited from class java.lang.Object

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

Field Detail

moduleURIs

public final TokenSet moduleURIs

URIs of modules loaded by the current file.

qc

public final QueryContext qc

Query context.

sc

public final StaticContext sc

Static context.

Method Detail

module

public final void module(String path,
                         String uri,
                         InputInfo ii)
                  throws QueryException

Parses the specified module, checking function and variable references at the end.

Parameters:

path - file path

uri - base URI of module

ii - input info

Throws:

QueryException - query exception

error

public QueryException error(QueryError error,
                            InputInfo ii,
                            Object... arg)

Creates the specified error.

Parameters:

error - error to be thrown

ii - input info

arg - error arguments

Returns:

error

isLibrary

public static boolean isLibrary(String query)

Checks if the specified XQuery string is a library module.

Parameters:

query - query string

Returns:

result of check

removeComments

public static String removeComments(String query,
                                    int max)

Removes comments from the specified string and returns the first characters of a query.

Parameters:

query - query string

max - maximum length of string to return

Returns:

result