1 files changed, 126 insertions, 0 deletions
diff --git a/lldb/source/Utility/StringExtractor.h b/lldb/source/Utility/StringExtractor.h
new file mode 100644
index 00000000000..e2312f71ad7
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+++ b/lldb/source/Utility/StringExtractor.h
@@ -0,0 +1,126 @@
+//===-- StringExtractor.h ---------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef utility_StringExtractor_h_
+#define utility_StringExtractor_h_
+
+// C Includes
+// C++ Includes
+#include <string>
+
+// Other libraries and framework includes
+// Project includes
+
+class StringExtractor
+{
+public:
+
+    enum {
+        BigEndian = 0,
+        LittleEndian = 1
+    };
+    //------------------------------------------------------------------
+    // Constructors and Destructors
+    //------------------------------------------------------------------
+    StringExtractor();
+    StringExtractor(const char *packet_cstr);
+    StringExtractor(const StringExtractor& rhs);
+    virtual ~StringExtractor();
+
+    //------------------------------------------------------------------
+    // Operators
+    //------------------------------------------------------------------
+    const StringExtractor&
+    operator=(const StringExtractor& rhs);
+
+    // Returns true if the file position is still valid for the data
+    // contained in this string extractor object.
+    bool
+    IsGood() const
+    {
+        return m_index != UINT32_MAX;
+    }
+
+    uint32_t
+    GetFilePos () const
+    {
+        return m_index;
+    }
+
+    void
+    SetFilePos (uint32_t idx)
+    {
+        m_index = idx;
+    }
+
+    void
+    Clear ()
+    {
+        m_packet.clear();
+        m_index = 0;
+    }
+
+    std::string &
+    GetStringRef ()
+    {
+        return m_packet;
+    }
+
+    bool
+    Empty()
+    {
+        return m_packet.empty();
+    }
+
+    uint32_t
+    GetBytesLeft ()
+    {
+        if (m_index < m_packet.size())
+            return m_packet.size() - m_index;
+        return 0;
+    }
+    char
+    GetChar (char fail_value = '\0');
+
+    int8_t
+    GetHexS8 (int8_t fail_value = 0);
+
+    uint8_t
+    GetHexU8 (uint8_t fail_value = 0);
+
+    bool
+    GetNameColonValue (std::string &name, std::string &value);
+
+    uint32_t
+    GetHexMaxU32 (bool little_endian, uint32_t fail_value);
+
+    uint64_t
+    GetHexMaxU64 (bool little_endian, uint64_t fail_value);
+
+    size_t
+    GetHexBytes (void *dst, size_t dst_len, uint8_t fail_fill_value);
+
+    uint64_t
+    GetHexWithFixedSize (uint32_t byte_size, bool little_endian, uint64_t fail_value);
+
+protected:
+    //------------------------------------------------------------------
+    // For StringExtractor only
+    //------------------------------------------------------------------
+    std::string m_packet;   // The string in which to extract data.
+    uint32_t m_index;       // When extracting data from a packet, this index
+                            // will march along as things get extracted. If set
+                            // to UINT32_MAX the end of the packet data was
+                            // reached when decoding information
+
+    uint32_t
+    GetNumHexASCIICharsAtFilePos (uint32_t max = UINT32_MAX) const;
+};
+
+#endif  // utility_StringExtractor_h_