69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
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// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package bleve
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import (
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"fmt"
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"strings"
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"sync"
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)
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var crashHard = false
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var parserMutex sync.Mutex
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var parsingDefaultField string
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var parsingMust bool
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var parsingMustNot bool
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var debugParser bool
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var debugLexer bool
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var parsingMustList *ConjunctionQuery
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var parsingMustNotList *DisjunctionQuery
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var parsingShouldList *DisjunctionQuery
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var parsingIndexMapping *IndexMapping
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func ParseQuerySyntax(query string, mapping *IndexMapping, defaultField string) (rq Query, err error) {
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parserMutex.Lock()
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defer parserMutex.Unlock()
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parsingIndexMapping = mapping
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parsingDefaultField = defaultField
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parsingMustList = NewConjunctionQuery([]Query{})
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parsingMustNotList = NewDisjunctionQuery([]Query{})
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parsingShouldList = NewDisjunctionQuery([]Query{})
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defer func() {
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r := recover()
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if r != nil && r == "syntax error" {
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// if we're panicing over a syntax error, chill
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err = fmt.Errorf("Parse Error - %v", r)
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} else if r != nil {
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// otherise continue to panic
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if crashHard {
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panic(r)
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} else {
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err = fmt.Errorf("Other Error - %v", r)
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}
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}
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}()
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yyParse(NewLexer(strings.NewReader(query)))
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parsingQuery := NewBooleanQuery(nil, nil, nil)
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if len(parsingMustList.Conjuncts) > 0 {
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parsingQuery.Must = parsingMustList
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}
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if len(parsingMustNotList.Disjuncts) > 0 {
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parsingQuery.MustNot = parsingMustNotList
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}
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if len(parsingShouldList.Disjuncts) > 0 {
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parsingQuery.Should = parsingShouldList
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}
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rq = parsingQuery
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return rq, err
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}
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