# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

import sqlalchemy.sql.expression

from gertty.search import tokenizer, parser
import gertty.db


class SearchSyntaxError(Exception):
    pass


class SearchCompiler(object):
    def __init__(self, app):
        self.app = app
        self.lexer = tokenizer.SearchTokenizer()
        self.parser = parser.SearchParser()

    def parse(self, data):
        self.parser.username = self.app.config.username
        return self.parser.parse(data, lexer=self.lexer)
