Created helper class for parsing Apple style XML dictionaries.

chrome/utility/media_galleries/iapps_xml_utils.cc

Index: chrome/utility/media_galleries/iapps_xml_utils.cc
diff --git a/chrome/utility/media_galleries/iapps_xml_utils.cc b/chrome/utility/media_galleries/iapps_xml_utils.cc
index 987b6c193ecd7f1618b64840cb7773a65b3f1bf6..e9be7bcb2c67bb345cd10c438ec5b48c4bf791ba 100644
--- a/chrome/utility/media_galleries/iapps_xml_utils.cc
+++ b/chrome/utility/media_galleries/iapps_xml_utils.cc
@@ -97,4 +97,55 @@ std::string ReadFileAsString(base::File file) {
   return result;
 }
 
+XmlDictReader::XmlDictReader(XmlReader* reader) : reader_(reader) {}
+
+bool XmlDictReader::Read() {
+  if (reader_->NodeName() != "dict")
+    return false;
+
+  int dict_content_depth = reader_->Depth() + 1;
+  // Advance past the dict node and into the body of the dictionary.
+  if (!reader_->Read())
+    return false;
+
+  while (reader_->Depth() >= dict_content_depth && ShouldLoop()) {
+    if (!iapps::SeekToNodeAtCurrentDepth(reader_, "key"))
+      break;
+    std::string found_key;
+    if (!reader_->ReadElementContent(&found_key))
+      break;
+    DCHECK_EQ(dict_content_depth, reader_->Depth());
+
+    if (Found(found_key) && AllowRepeats())
+      continue;
+
+    if (!HandleKey(found_key))
+      break;
+  }
+  // Seek to the end of the dictionary.
+  // Bail on end or error.
+  while (reader_->Depth() >= dict_content_depth && reader_->Next())

[Lei Zhang, 2014/08/05 19:38:24]

while (...) {}, rather than the semi-colon on the next line.

[Kevin Bailey, 2014/08/05 21:52:05]

Done.

+    ;
+  return FinishedOk();
+}
+
+bool XmlDictReader::ShouldLoop() {
+  return true;
+}
+
+bool XmlDictReader::SkipToNext() {
+  return SkipToNextElement(reader_) && reader_->Next();
+}
+
+bool XmlDictReader::FinishedOk() {
+  return true;
+}
+
+bool XmlDictReader::AllowRepeats() {
+  return false;
+}
+
+XmlDictReader::~XmlDictReader() {
+}
+
 }  // namespace iapps