1 // Copyright 2010-2018, Google Inc.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
6 // met:
7 //
8 //     * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 //     * Redistributions in binary form must reproduce the above
11 // copyright notice, this list of conditions and the following disclaimer
12 // in the documentation and/or other materials provided with the
13 // distribution.
14 //     * Neither the name of Google Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from
16 // this software without specific prior written permission.
17 //
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 
30 #ifndef MOZC_REWRITER_CALCULATOR_REWRITER_H_
31 #define MOZC_REWRITER_CALCULATOR_REWRITER_H_
32 
33 #include <string>
34 #include "converter/segments.h"
35 #include "rewriter/rewriter_interface.h"
36 
37 namespace mozc {
38 
39 class CalculatorRewriterTest;
40 class ConversionRequest;
41 class ConversionRequest;
42 class ConverterInterface;
43 class Segments;
44 
45 class CalculatorRewriter : public RewriterInterface {
46  public:
47   friend class CalculatorRewriterTest;
48 
49   explicit CalculatorRewriter(const ConverterInterface *parent_converter);
50   virtual ~CalculatorRewriter();
51 
52   virtual int capability(const ConversionRequest &request) const;
53 
54   virtual bool Rewrite(const ConversionRequest &request,
55                        Segments *segments) const;
56 
57  private:
58   // Inserts a candidate with the string into the |segment|.
59   // Position of insertion is indicated by |insert_pos|. It returns false if
60   // insertion is failed.
61   bool InsertCandidate(const string &value,
62                        size_t insert_pos,
63                        Segment *segment) const;
64 
65   const ConverterInterface *parent_converter_;
66 };
67 
68 }  // namespace mozc
69 
70 #endif  // MOZC_REWRITER_CALCULATOR_REWRITER_H_
71