| // Copyright 2010-2014, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef MOZC_NET_JSONPATH_H_ |
| #define MOZC_NET_JSONPATH_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/port.h" |
| #include "net/jsoncpp.h" |
| |
| namespace mozc { |
| namespace net { |
| |
| // C++ implementation of JsonPath. |
| // http://goessner.net/articles/JsonPath/ |
| // |
| // "@", "?()" and "()" are not supported as they require an |
| // "eval()" method on the underlying script language. |
| class JsonPath { |
| public: |
| // Perform JsonPath query |jsonpath| to the Json node |root|. |
| // Results are saved in |output|. |root| node has the |
| // ownership of the pointer (const Json::Value *) in |output|. |
| // |
| // |output| contains both Object/Array nodes. If you want |
| // to obtain a string expression, use Json::Value::asString() |
| // or Json::Value::toStyledString(). |
| // |
| // Usage: |
| // |
| // net::JsonPath::Parse(root, "$.foo.bar[1:2].*.buz", &output); |
| // |
| // for (int i = 0; i < outputs.size(); ++i) { |
| // const Json::Value *value = output[i]; |
| // if (value->isObjet() || value->isArray()) { |
| // // output in Json format again. |
| // cout << value->toStyledString(); |
| // } else { |
| // cout << value->asString(); |
| // } |
| // } |
| static bool Parse(const Json::Value &root, |
| const string &jsonpath, |
| vector<const Json::Value *> *output); |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(JsonPath); |
| }; |
| |
| } // namespace net |
| } // namespace mozc |
| |
| #endif // MOZC_NET_JSONPATH_H_ |