Add base to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 71 insertions, 0 deletions

diff --git a/base/json_writer.h b/base/json_writer.h
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--- /dev/null
+++ b/base/json_writer.h
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+// Copyright 2008, 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 CHROME_COMMON_JSON_WRITER_H__
+#define CHROME_COMMON_JSON_WRITER_H__
+
+#include <string>
+
+#include "base/basictypes.h"
+
+class Value;
+
+class JSONWriter {
+ public:
+  // Given a root node, generates a JSON string and puts it into |json|.
+  // If |pretty_print| is true, return a slightly nicer formated json string
+  // (pads with whitespace to help readability).  If |pretty_print| is false,
+  // we try to generate as compact a string as possible.
+  // TODO(tc): Should we generate json if it would be invalid json (e.g.,
+  // |node| is not a DictionaryValue/ListValue or if there are inf/-inf float
+  // values)?
+  static void Write(const Value* const node, bool pretty_print,
+                    std::string* json);
+
+ private:
+  JSONWriter(bool pretty_print, std::string* json);
+  DISALLOW_EVIL_CONSTRUCTORS(JSONWriter);
+
+  // Called recursively to build the JSON string.  Whe completed, value is
+  // json_string_ will contain the JSON.
+  void BuildJSONString(const Value* const node, int depth);
+
+  // Appends a quoted, escaped, version of str to json_string_.
+  void AppendQuotedString(const std::wstring& str);
+
+  // Adds space to json_string_ for the indent level.
+  void IndentLine(int depth);
+
+  // Where we write JSON data as we generate it.
+  std::string* json_string_;
+
+  bool pretty_print_;
+};
+
+#endif  // CHROME_COMMON_JSON_WRITER_H__