Initial checkin of lldb code from internal Apple repo.
git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@105619 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Utility/StringExtractorGDBRemote.cpp b/source/Utility/StringExtractorGDBRemote.cpp
new file mode 100644
index 0000000..f7dcc41
--- /dev/null
+++ b/source/Utility/StringExtractorGDBRemote.cpp
@@ -0,0 +1,89 @@
+//===-- StringExtractorGDBRemote.cpp ----------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "StringExtractorGDBRemote.h"
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+
+
+
+StringExtractorGDBRemote::Type
+StringExtractorGDBRemote::GetType () const
+{
+ if (m_packet.empty())
+ return eUnsupported;
+
+ switch (m_packet[0])
+ {
+ case 'E':
+ if (m_packet.size() == 3 &&
+ isxdigit(m_packet[1]) &&
+ isxdigit(m_packet[2]))
+ return eError;
+ break;
+
+ case 'O':
+ if (m_packet.size() == 2 && m_packet[1] == 'K')
+ return eOK;
+ break;
+
+ case '+':
+ if (m_packet.size() == 1)
+ return eAck;
+ break;
+
+ case '-':
+ if (m_packet.size() == 1)
+ return eNack;
+ break;
+ }
+ return eResponse;
+}
+
+bool
+StringExtractorGDBRemote::IsOKPacket() const
+{
+ return GetType () == eOK;
+}
+
+
+bool
+StringExtractorGDBRemote::IsUnsupportedPacket() const
+{
+ return GetType () == eUnsupported;
+}
+
+bool
+StringExtractorGDBRemote::IsNormalPacket() const
+{
+ return GetType () == eResponse;
+}
+
+bool
+StringExtractorGDBRemote::IsErrorPacket() const
+{
+ return GetType () == eError &&
+ m_packet.size() == 3 &&
+ isxdigit(m_packet[1]) &&
+ isxdigit(m_packet[2]);
+}
+
+uint8_t
+StringExtractorGDBRemote::GetError ()
+{
+ if (GetType() == eError)
+ {
+ SetFilePos(1);
+ return GetHexU8(255);
+ }
+ return 0;
+}