google.appengine.api.search.query_parser module

Summary

Wrapper for QueryParser.

Contents

google.appengine.api.search.query_parser.ConvertNodes(node, from_type, to_type, to_text)source

Converts nodes of type from_type to nodes of type to_type.

google.appengine.api.search.query_parser.CreateParser(query)source

Creates a Query Parser.

google.appengine.api.search.query_parser.CreateQueryNode(text, type)source

google.appengine.api.search.query_parser.GetPhraseQueryNodeText(node)source

Returns the text from a query node.

google.appengine.api.search.query_parser.GetQueryNodeText(node)source

Returns the text from the node, handling that it could be unicode.

google.appengine.api.search.query_parser.GetQueryNodeTextUnicode(node)source

Returns the unicode text from node.

google.appengine.api.search.query_parser.IsPhrase(node)source

Return true if node is the root of a text phrase.

google.appengine.api.search.query_parser.Parse(query)source

Parses a query and returns an ANTLR tree.

google.appengine.api.search.query_parser.ParseAndSimplify(query)source

Parses a query and performs all necessary transformations on the tree.

exception google.appengine.api.search.query_parser.QueryExceptionsource

Bases: exceptions.Exception

An error occurred while parsing the query input string.

class google.appengine.api.search.query_parser.QueryLexerWithErrors(input=None, state=None)source

Bases: google.appengine.api.search.QueryLexer.QueryLexer

An overridden Lexer that raises exceptions.

displayRecognitionError(tokenNames, e)source

emitErrorMessage(msg)source

Raise an exception if the input fails to parse correctly.

Overriding the default, which normally just prints a message to stderr.

Parameters

msg – the error message

Raises

QueryException – always.

class google.appengine.api.search.query_parser.QueryParserWithErrors(input, state=None)source

Bases: google.appengine.api.search.QueryParser.QueryParser

An overridden Parser that raises exceptions.

displayRecognitionError(tokenNames, e)source

emitErrorMessage(msg)source

Raise an exception if the input fails to parse correctly.

Overriding the default, which normally just prints a message to stderr.

Parameters

msg – the error message

Raises

QueryException – always.

exception google.appengine.api.search.query_parser.QueryTreeException(msg, position)source

Bases: exceptions.Exception

An error occurred while analyzing the parse tree.

google.appengine.api.search.query_parser.RemoveSurroundingQuotes(text)source

Removes outer quotation marks, if present.

google.appengine.api.search.query_parser.SequenceToConjunction(node)source

Transform all SEQUENCE nodes into CONJUNCTION nodes.

Sequences have the same semantic meaning as conjunctions, so we transform them to conjunctions to make query matching code simpler.

Parameters

node – Root of the tree to transform.

Returns

A tree with all SEQUENCE nodes replaced with CONJUNCTION nodes.

google.appengine.api.search.query_parser.Simplify(parser_return)source

Simplifies the output of the parser.

google.appengine.api.search.query_parser.SimplifyNode(node, restriction=None)source

google.appengine.api.search.query_parser.ValidateNode(node)source