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-rw-r--r--Platform/StringConverter.cpp367
1 files changed, 367 insertions, 0 deletions
diff --git a/Platform/StringConverter.cpp b/Platform/StringConverter.cpp
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index 0000000..6e52ee7
--- /dev/null
+++ b/Platform/StringConverter.cpp
@@ -0,0 +1,367 @@
+/*
+ Copyright (c) 2008-2009 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#ifdef __GNUC__
+# include <cxxabi.h>
+#endif
+#include <locale>
+#include <typeinfo>
+#include "Buffer.h"
+#include "Exception.h"
+#include "ForEach.h"
+#include "StringConverter.h"
+#include "SystemException.h"
+
+namespace TrueCrypt
+{
+ void StringConverter::Erase (string &str)
+ {
+ for (size_t i = 0; i < str.size(); ++i)
+ {
+ str[i] = ' ';
+ }
+ }
+
+ void StringConverter::Erase (wstring &str)
+ {
+ for (size_t i = 0; i < str.size(); ++i)
+ {
+ str[i] = ' ';
+ }
+ }
+
+ wstring StringConverter::FromNumber (double number)
+ {
+ wstringstream s;
+ s << number;
+ return s.str();
+ }
+
+ wstring StringConverter::FromNumber (int32 number)
+ {
+ wstringstream s;
+ s << number;
+ return s.str();
+ }
+
+ wstring StringConverter::FromNumber (uint32 number)
+ {
+ wstringstream s;
+ s << number;
+ return s.str();
+ }
+
+ wstring StringConverter::FromNumber (int64 number)
+ {
+ wstringstream s;
+ s << number;
+ return s.str();
+ }
+
+ wstring StringConverter::FromNumber (uint64 number)
+ {
+ wstringstream s;
+ s << number;
+ return s.str();
+ }
+
+ string StringConverter::GetTrailingNumber (const string &str)
+ {
+ size_t start = str.find_last_not_of ("0123456789");
+ if (start == string::npos)
+ return str;
+
+ string s = str.substr (start + 1);
+ if (s.empty ())
+ throw ParameterIncorrect (SRC_POS);
+
+ return s;
+ }
+
+ string StringConverter::GetTypeName (const type_info &typeInfo)
+ {
+ try
+ {
+#ifdef _MSC_VER
+ // type_info::name() leaks memory as of MS VC++ 8.0
+ string rawName (typeInfo.raw_name());
+
+ size_t cut1 = (rawName.find (".?A") != string::npos) ? 4 : string::npos;
+ size_t cut2 = rawName.find ("@");
+ size_t cut3 = rawName.find ("@@");
+
+ if (cut1 == string::npos || cut2 == string::npos || cut3 == string::npos)
+ return typeInfo.name();
+
+ return rawName.substr (cut2 + 1, cut3 - cut2 - 1) + "::" + rawName.substr (cut1, cut2 - cut1);
+
+#elif defined (__GNUC__)
+ int status;
+ char *name = abi::__cxa_demangle (typeInfo.name(), nullptr, nullptr, &status);
+
+ if (name)
+ {
+ string s (name);
+ free (name);
+ return s;
+ }
+#endif
+ }
+ catch (...) { }
+
+ return typeInfo.name();
+ }
+
+ wstring StringConverter::QuoteSpaces (const wstring &str)
+ {
+ if (str.find (L' ') == string::npos)
+ return str;
+
+ wstring escaped (L"'");
+ foreach (wchar_t c, str)
+ {
+ if (c == L'\'')
+ escaped += L'\'';
+ escaped += c;
+ }
+ return escaped + L'\'';
+ }
+
+ vector <string> StringConverter::Split (const string &str, const string &separators, bool returnEmptyFields)
+ {
+ vector <string> elements;
+
+ if (!returnEmptyFields)
+ {
+ size_t p = 0;
+ while ((p = str.find_first_not_of (separators, p)) != string::npos)
+ {
+ size_t end = str.find_first_of (separators, p);
+ if (end == string::npos)
+ {
+ elements.push_back (str.substr (p));
+ break;
+ }
+
+ elements.push_back (str.substr (p, end - p));
+ p = end;
+ }
+ }
+ else
+ {
+ string element;
+ elements.push_back (element);
+ foreach (char c, str)
+ {
+ if (separators.find (c) != string::npos)
+ {
+ element.erase();
+ elements.push_back (element);
+ }
+ else
+ {
+ elements.back() += c;
+ }
+ }
+ }
+
+ return elements;
+ }
+
+ string StringConverter::StripTrailingNumber (const string &str)
+ {
+ size_t start = str.find_last_not_of ("0123456789");
+ if (start == string::npos)
+ return "";
+
+ return str.substr (0, start + 1);
+ }
+
+ wstring StringConverter::ToExceptionString (const exception &ex)
+ {
+ const SystemException *sysEx = dynamic_cast <const SystemException *> (&ex);
+ if (sysEx)
+ return ToWide (sysEx->what()) + L": " + sysEx->SystemText() + L": " + sysEx->GetSubject();
+
+ if (ex.what() && !string (ex.what()).empty())
+ return ToWide (GetTypeName (typeid (ex)) + ": " + ex.what());
+
+ return ToWide (GetTypeName (typeid (ex)));
+ }
+
+ string StringConverter::ToLower (const string &str)
+ {
+ string s;
+ foreach (char c, str)
+ s += tolower (c, locale());
+ return s;
+ }
+
+ string StringConverter::ToSingle (const wstring &wstr, bool noThrow)
+ {
+ string str;
+ ToSingle (wstr, str, noThrow);
+ return str;
+ }
+
+ void StringConverter::ToSingle (const wstring &wstr, string &str, bool noThrow)
+ {
+ try
+ {
+ mbstate_t mbState;
+ Memory::Zero (&mbState, sizeof (mbState));
+ const wchar_t *src = wstr.c_str();
+
+ size_t size = wcsrtombs (nullptr, &src, 0, &mbState);
+ if (size == (size_t) -1)
+ throw StringConversionFailed (SRC_POS, wstr);
+
+ vector <char> buf (size + 1);
+ Memory::Zero (&mbState, sizeof (mbState));
+
+ if ((size = wcsrtombs (&buf[0], &src, buf.size(), &mbState)) == (size_t) -1)
+ throw StringConversionFailed (SRC_POS, wstr);
+
+ str.clear();
+ str.insert (0, &buf.front(), size);
+ Memory::Erase (&buf.front(), buf.size());
+ }
+ catch (...)
+ {
+ if (!noThrow)
+ throw;
+ }
+ }
+
+ uint32 StringConverter::ToUInt32 (const string &str)
+ {
+ uint32 n;
+ stringstream ss (str);
+
+ ss >> n;
+ if (ss.fail() || n == 0xffffFFFFU)
+ throw ParameterIncorrect (SRC_POS);
+
+ return n;
+ }
+
+ uint32 StringConverter::ToUInt32 (const wstring &str)
+ {
+ uint32 n;
+ wstringstream ss (str);
+
+ ss >> n;
+ if (ss.fail() || n == 0xffffFFFFU)
+ throw ParameterIncorrect (SRC_POS);
+
+ return n;
+ }
+
+ uint64 StringConverter::ToUInt64 (const string &str)
+ {
+ uint64 n;
+ stringstream ss (str);
+
+ ss >> n;
+ if (ss.fail() || n == 0xffffFFFFffffFFFFULL)
+ throw ParameterIncorrect (SRC_POS);
+
+ return n;
+ }
+
+ uint64 StringConverter::ToUInt64 (const wstring &str)
+ {
+ uint64 n;
+ wstringstream ss (str);
+
+ ss >> n;
+ if (ss.fail() || n == 0xffffFFFFffffFFFFULL)
+ throw ParameterIncorrect (SRC_POS);
+
+ return n;
+ }
+
+ string StringConverter::ToUpper (const string &str)
+ {
+ string s;
+ foreach (char c, str)
+ s += toupper (c, locale());
+ return s;
+ }
+
+ wstring StringConverter::ToWide (const string &str, bool noThrow)
+ {
+ try
+ {
+ mbstate_t mbState;
+ Memory::Zero (&mbState, sizeof (mbState));
+ const char *src = str.c_str();
+
+ size_t size = mbsrtowcs (nullptr, &src, 0, &mbState);
+ if (size == (size_t) -1)
+ throw StringConversionFailed (SRC_POS);
+
+ vector <wchar_t> buf (size + 1);
+ Memory::Zero (&mbState, sizeof (mbState));
+
+ if ((size = mbsrtowcs (&buf[0], &src, buf.size(), &mbState)) == (size_t) -1)
+ throw StringConversionFailed (SRC_POS);
+
+ wstring s;
+ s.insert (s.begin(), buf.begin(), buf.begin() + size);
+ return s;
+ }
+ catch (...)
+ {
+ if (noThrow)
+ return L"";
+ throw;
+ }
+ }
+
+ void StringConverter::ToWideBuffer (const wstring &str, wchar_t *buffer, size_t bufferSize)
+ {
+ if (str.length() < 1)
+ {
+ buffer[0] = 0;
+ return;
+ }
+
+ BufferPtr (
+ (byte *) buffer,
+ bufferSize).CopyFrom (
+ ConstBufferPtr ((byte *) (wstring (str).c_str()),
+ (str.length() + 1) * sizeof (wchar_t)
+ )
+ );
+ }
+
+ string StringConverter::Trim (const string &str)
+ {
+ size_t start = 0;
+ size_t end = str.size();
+ if (end < 1)
+ return str;
+
+ foreach (char c, str)
+ {
+ if (c > ' ')
+ break;
+ ++start;
+ }
+
+ foreach_reverse (char c, str)
+ {
+ if (c > ' ')
+ break;
+ --end;
+ }
+
+ return str.substr (start, end - start);
+ }
+}
generated by cgit (git 2.30.0) at 2024-11-10 22:11:21 +0000