pfeldman@chromium.org
89328a337d
Review URL: http://codereview.chromium.org/115397 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16153 0039d316-1c4b-4281-b951-d872f2087c98
56 linhas
1.9 KiB
C++
56 linhas
1.9 KiB
C++
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_JSON_WRITER_H_
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#define BASE_JSON_WRITER_H_
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#include <string>
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#include "base/basictypes.h"
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class Value;
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class JSONWriter {
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public:
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// Given a root node, generates a JSON string and puts it into |json|.
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// If |pretty_print| is true, return a slightly nicer formated json string
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// (pads with whitespace to help readability). If |pretty_print| is false,
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// we try to generate as compact a string as possible.
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// TODO(tc): Should we generate json if it would be invalid json (e.g.,
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// |node| is not a DictionaryValue/ListValue or if there are inf/-inf float
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// values)?
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static void Write(const Value* const node, bool pretty_print,
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std::string* json);
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// Same as above, but has an option to not escape the string, preserving its
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// UTF8 characters. It is useful if you can pass resulting string to the
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// JSON parser in binary form (as UTF8).
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static void WriteWithOptionalEscape(const Value* const node,
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bool pretty_print,
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bool escape,
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std::string* json);
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private:
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JSONWriter(bool pretty_print, std::string* json);
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// Called recursively to build the JSON string. Whe completed, value is
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// json_string_ will contain the JSON.
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void BuildJSONString(const Value* const node, int depth, bool escape);
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// Appends a quoted, escaped, version of str to json_string_.
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void AppendQuotedString(const std::wstring& str);
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// Adds space to json_string_ for the indent level.
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void IndentLine(int depth);
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// Where we write JSON data as we generate it.
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std::string* json_string_;
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bool pretty_print_;
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DISALLOW_COPY_AND_ASSIGN(JSONWriter);
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};
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#endif // BASE_JSON_WRITER_H_
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