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-rwxr-xr-xCPP/7zip/Archive/Common/ParseProperties.cpp177
1 files changed, 177 insertions, 0 deletions
diff --git a/CPP/7zip/Archive/Common/ParseProperties.cpp b/CPP/7zip/Archive/Common/ParseProperties.cpp
new file mode 100755
index 0000000..5550a23
--- /dev/null
+++ b/CPP/7zip/Archive/Common/ParseProperties.cpp
@@ -0,0 +1,177 @@
+// ParseProperties.cpp
+
+#include "StdAfx.h"
+
+#include "ParseProperties.h"
+
+#include "Common/StringToInt.h"
+#include "Common/MyCom.h"
+
+HRESULT ParsePropValue(const UString &name, const PROPVARIANT &prop, UInt32 &resValue)
+{
+ if (prop.vt == VT_UI4)
+ {
+ if (!name.IsEmpty())
+ return E_INVALIDARG;
+ resValue = prop.ulVal;
+ }
+ else if (prop.vt == VT_EMPTY)
+ {
+ if(!name.IsEmpty())
+ {
+ const wchar_t *start = name;
+ const wchar_t *end;
+ UInt64 v = ConvertStringToUInt64(start, &end);
+ if (end - start != name.Length())
+ return E_INVALIDARG;
+ resValue = (UInt32)v;
+ }
+ }
+ else
+ return E_INVALIDARG;
+ return S_OK;
+}
+
+static const int kLogarithmicSizeLimit = 32;
+static const wchar_t kByteSymbol = L'B';
+static const wchar_t kKiloByteSymbol = L'K';
+static const wchar_t kMegaByteSymbol = L'M';
+
+HRESULT ParsePropDictionaryValue(const UString &srcStringSpec, UInt32 &dicSize)
+{
+ UString srcString = srcStringSpec;
+ srcString.MakeUpper();
+
+ const wchar_t *start = srcString;
+ const wchar_t *end;
+ UInt64 number = ConvertStringToUInt64(start, &end);
+ int numDigits = (int)(end - start);
+ if (numDigits == 0 || srcString.Length() > numDigits + 1)
+ return E_INVALIDARG;
+ if (srcString.Length() == numDigits)
+ {
+ if (number >= kLogarithmicSizeLimit)
+ return E_INVALIDARG;
+ dicSize = (UInt32)1 << (int)number;
+ return S_OK;
+ }
+ switch (srcString[numDigits])
+ {
+ case kByteSymbol:
+ if (number >= ((UInt64)1 << kLogarithmicSizeLimit))
+ return E_INVALIDARG;
+ dicSize = (UInt32)number;
+ break;
+ case kKiloByteSymbol:
+ if (number >= ((UInt64)1 << (kLogarithmicSizeLimit - 10)))
+ return E_INVALIDARG;
+ dicSize = (UInt32)(number << 10);
+ break;
+ case kMegaByteSymbol:
+ if (number >= ((UInt64)1 << (kLogarithmicSizeLimit - 20)))
+ return E_INVALIDARG;
+ dicSize = (UInt32)(number << 20);
+ break;
+ default:
+ return E_INVALIDARG;
+ }
+ return S_OK;
+}
+
+HRESULT ParsePropDictionaryValue(const UString &name, const PROPVARIANT &prop, UInt32 &resValue)
+{
+ if (name.IsEmpty())
+ {
+ if (prop.vt == VT_UI4)
+ {
+ UInt32 logDicSize = prop.ulVal;
+ if (logDicSize >= 32)
+ return E_INVALIDARG;
+ resValue = (UInt32)1 << logDicSize;
+ return S_OK;
+ }
+ if (prop.vt == VT_BSTR)
+ return ParsePropDictionaryValue(prop.bstrVal, resValue);
+ return E_INVALIDARG;
+ }
+ return ParsePropDictionaryValue(name, resValue);
+}
+
+bool StringToBool(const UString &s, bool &res)
+{
+ if (s.IsEmpty() || s.CompareNoCase(L"ON") == 0 || s.Compare(L"+") == 0)
+ {
+ res = true;
+ return true;
+ }
+ if (s.CompareNoCase(L"OFF") == 0 || s.Compare(L"-") == 0)
+ {
+ res = false;
+ return true;
+ }
+ return false;
+}
+
+HRESULT SetBoolProperty(bool &dest, const PROPVARIANT &value)
+{
+ switch(value.vt)
+ {
+ case VT_EMPTY:
+ dest = true;
+ return S_OK;
+ case VT_BOOL:
+ dest = (value.boolVal != VARIANT_FALSE);
+ return S_OK;
+ /*
+ case VT_UI4:
+ dest = (value.ulVal != 0);
+ break;
+ */
+ case VT_BSTR:
+ return StringToBool(value.bstrVal, dest) ? S_OK : E_INVALIDARG;
+ }
+ return E_INVALIDARG;
+}
+
+int ParseStringToUInt32(const UString &srcString, UInt32 &number)
+{
+ const wchar_t *start = srcString;
+ const wchar_t *end;
+ UInt64 number64 = ConvertStringToUInt64(start, &end);
+ if (number64 > 0xFFFFFFFF)
+ {
+ number = 0;
+ return 0;
+ }
+ number = (UInt32)number64;
+ return (int)(end - start);
+}
+
+HRESULT ParseMtProp(const UString &name, const PROPVARIANT &prop, UInt32 defaultNumThreads, UInt32 &numThreads)
+{
+ if (name.IsEmpty())
+ {
+ switch(prop.vt)
+ {
+ case VT_UI4:
+ numThreads = prop.ulVal;
+ break;
+ default:
+ {
+ bool val;
+ RINOK(SetBoolProperty(val, prop));
+ numThreads = (val ? defaultNumThreads : 1);
+ break;
+ }
+ }
+ }
+ else
+ {
+ UInt32 number;
+ int index = ParseStringToUInt32(name, number);
+ if (index != name.Length())
+ return E_INVALIDARG;
+ numThreads = number;
+ }
+ return S_OK;
+}