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-rw-r--r--other-licenses/7zstub/src/CPP/Common/StringConvert.cpp319
1 files changed, 319 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/Common/StringConvert.cpp b/other-licenses/7zstub/src/CPP/Common/StringConvert.cpp
new file mode 100644
index 0000000000..b8f33cd63a
--- /dev/null
+++ b/other-licenses/7zstub/src/CPP/Common/StringConvert.cpp
@@ -0,0 +1,319 @@
+// Common/StringConvert.cpp
+
+#include "StdAfx.h"
+
+#include "StringConvert.h"
+
+#ifndef _WIN32
+#include <stdlib.h>
+#endif
+
+static const char k_DefultChar = '_';
+
+#ifdef _WIN32
+
+/*
+MultiByteToWideChar(CodePage, DWORD dwFlags,
+ LPCSTR lpMultiByteStr, int cbMultiByte,
+ LPWSTR lpWideCharStr, int cchWideChar)
+
+ if (cbMultiByte == 0)
+ return: 0. ERR: ERROR_INVALID_PARAMETER
+
+ if (cchWideChar == 0)
+ return: the required buffer size in characters.
+
+ if (supplied buffer size was not large enough)
+ return: 0. ERR: ERROR_INSUFFICIENT_BUFFER
+ The number of filled characters in lpWideCharStr can be smaller than cchWideChar (if last character is complex)
+
+ If there are illegal characters:
+ if MB_ERR_INVALID_CHARS is set in dwFlags:
+ - the function stops conversion on illegal character.
+ - Return: 0. ERR: ERROR_NO_UNICODE_TRANSLATION.
+
+ if MB_ERR_INVALID_CHARS is NOT set in dwFlags:
+ before Vista: illegal character is dropped (skipped). WinXP-64: GetLastError() returns 0.
+ in Vista+: illegal character is not dropped (MSDN). Undocumented: illegal
+ character is converted to U+FFFD, which is REPLACEMENT CHARACTER.
+*/
+
+
+void MultiByteToUnicodeString2(UString &dest, const AString &src, UINT codePage)
+{
+ dest.Empty();
+ if (src.IsEmpty())
+ return;
+ {
+ /*
+ wchar_t *d = dest.GetBuf(src.Len());
+ const char *s = (const char *)src;
+ unsigned i;
+
+ for (i = 0;;)
+ {
+ Byte c = (Byte)s[i];
+ if (c >= 0x80 || c == 0)
+ break;
+ d[i++] = (wchar_t)c;
+ }
+
+ if (i != src.Len())
+ {
+ unsigned len = MultiByteToWideChar(codePage, 0, s + i,
+ src.Len() - i, d + i,
+ src.Len() + 1 - i);
+ if (len == 0)
+ throw 282228;
+ i += len;
+ }
+
+ d[i] = 0;
+ dest.ReleaseBuf_SetLen(i);
+ */
+ unsigned len = MultiByteToWideChar(codePage, 0, src, src.Len(), NULL, 0);
+ if (len == 0)
+ {
+ if (GetLastError() != 0)
+ throw 282228;
+ }
+ else
+ {
+ len = MultiByteToWideChar(codePage, 0, src, src.Len(), dest.GetBuf(len), len);
+ if (len == 0)
+ throw 282228;
+ dest.ReleaseBuf_SetEnd(len);
+ }
+ }
+}
+
+/*
+ int WideCharToMultiByte(
+ UINT CodePage, DWORD dwFlags,
+ LPCWSTR lpWideCharStr, int cchWideChar,
+ LPSTR lpMultiByteStr, int cbMultiByte,
+ LPCSTR lpDefaultChar, LPBOOL lpUsedDefaultChar);
+
+if (lpDefaultChar == NULL),
+ - it uses system default value.
+
+if (CodePage == CP_UTF7 || CodePage == CP_UTF8)
+ if (lpDefaultChar != NULL || lpUsedDefaultChar != NULL)
+ return: 0. ERR: ERROR_INVALID_PARAMETER.
+
+The function operates most efficiently, if (lpDefaultChar == NULL && lpUsedDefaultChar == NULL)
+
+*/
+
+static void UnicodeStringToMultiByte2(AString &dest, const UString &src, UINT codePage, char defaultChar, bool &defaultCharWasUsed)
+{
+ dest.Empty();
+ defaultCharWasUsed = false;
+ if (src.IsEmpty())
+ return;
+ {
+ /*
+ unsigned numRequiredBytes = src.Len() * 2;
+ char *d = dest.GetBuf(numRequiredBytes);
+ const wchar_t *s = (const wchar_t *)src;
+ unsigned i;
+
+ for (i = 0;;)
+ {
+ wchar_t c = s[i];
+ if (c >= 0x80 || c == 0)
+ break;
+ d[i++] = (char)c;
+ }
+
+ if (i != src.Len())
+ {
+ BOOL defUsed = FALSE;
+ defaultChar = defaultChar;
+
+ bool isUtf = (codePage == CP_UTF8 || codePage == CP_UTF7);
+ unsigned len = WideCharToMultiByte(codePage, 0, s + i, src.Len() - i,
+ d + i, numRequiredBytes + 1 - i,
+ (isUtf ? NULL : &defaultChar),
+ (isUtf ? NULL : &defUsed));
+ defaultCharWasUsed = (defUsed != FALSE);
+ if (len == 0)
+ throw 282229;
+ i += len;
+ }
+
+ d[i] = 0;
+ dest.ReleaseBuf_SetLen(i);
+ */
+
+ /*
+ if (codePage != CP_UTF7)
+ {
+ const wchar_t *s = (const wchar_t *)src;
+ unsigned i;
+ for (i = 0;; i++)
+ {
+ wchar_t c = s[i];
+ if (c >= 0x80 || c == 0)
+ break;
+ }
+
+ if (s[i] == 0)
+ {
+ char *d = dest.GetBuf(src.Len());
+ for (i = 0;;)
+ {
+ wchar_t c = s[i];
+ if (c == 0)
+ break;
+ d[i++] = (char)c;
+ }
+ d[i] = 0;
+ dest.ReleaseBuf_SetLen(i);
+ return;
+ }
+ }
+ */
+
+ unsigned len = WideCharToMultiByte(codePage, 0, src, src.Len(), NULL, 0, NULL, NULL);
+ if (len == 0)
+ {
+ if (GetLastError() != 0)
+ throw 282228;
+ }
+ else
+ {
+ BOOL defUsed = FALSE;
+ bool isUtf = (codePage == CP_UTF8 || codePage == CP_UTF7);
+ // defaultChar = defaultChar;
+ len = WideCharToMultiByte(codePage, 0, src, src.Len(),
+ dest.GetBuf(len), len,
+ (isUtf ? NULL : &defaultChar),
+ (isUtf ? NULL : &defUsed)
+ );
+ if (!isUtf)
+ defaultCharWasUsed = (defUsed != FALSE);
+ if (len == 0)
+ throw 282228;
+ dest.ReleaseBuf_SetEnd(len);
+ }
+ }
+}
+
+/*
+#ifndef UNDER_CE
+AString SystemStringToOemString(const CSysString &src)
+{
+ AString dest;
+ const unsigned len = src.Len() * 2;
+ CharToOem(src, dest.GetBuf(len));
+ dest.ReleaseBuf_CalcLen(len);
+ return dest;
+}
+#endif
+*/
+
+#else
+
+void MultiByteToUnicodeString2(UString &dest, const AString &src, UINT /* codePage */)
+{
+ dest.Empty();
+ if (src.IsEmpty())
+ return;
+
+ size_t limit = ((size_t)src.Len() + 1) * 2;
+ wchar_t *d = dest.GetBuf((unsigned)limit);
+ size_t len = mbstowcs(d, src, limit);
+ if (len != (size_t)-1)
+ {
+ dest.ReleaseBuf_SetEnd((unsigned)len);
+ return;
+ }
+
+ {
+ unsigned i;
+ const char *s = (const char *)src;
+ for (i = 0;;)
+ {
+ Byte c = (Byte)s[i];
+ if (c == 0)
+ break;
+ d[i++] = (wchar_t)c;
+ }
+ d[i] = 0;
+ dest.ReleaseBuf_SetLen(i);
+ }
+}
+
+static void UnicodeStringToMultiByte2(AString &dest, const UString &src, UINT /* codePage */, char defaultChar, bool &defaultCharWasUsed)
+{
+ dest.Empty();
+ defaultCharWasUsed = false;
+ if (src.IsEmpty())
+ return;
+
+ size_t limit = ((size_t)src.Len() + 1) * 6;
+ char *d = dest.GetBuf((unsigned)limit);
+ size_t len = wcstombs(d, src, limit);
+ if (len != (size_t)-1)
+ {
+ dest.ReleaseBuf_SetEnd((unsigned)len);
+ return;
+ }
+
+ {
+ const wchar_t *s = (const wchar_t *)src;
+ unsigned i;
+ for (i = 0;;)
+ {
+ wchar_t c = s[i];
+ if (c == 0)
+ break;
+ if (c >= 0x100)
+ {
+ c = defaultChar;
+ defaultCharWasUsed = true;
+ }
+ d[i++] = (char)c;
+ }
+ d[i] = 0;
+ dest.ReleaseBuf_SetLen(i);
+ }
+}
+
+#endif
+
+
+UString MultiByteToUnicodeString(const AString &src, UINT codePage)
+{
+ UString dest;
+ MultiByteToUnicodeString2(dest, src, codePage);
+ return dest;
+}
+
+UString MultiByteToUnicodeString(const char *src, UINT codePage)
+{
+ return MultiByteToUnicodeString(AString(src), codePage);
+}
+
+
+void UnicodeStringToMultiByte2(AString &dest, const UString &src, UINT codePage)
+{
+ bool defaultCharWasUsed;
+ UnicodeStringToMultiByte2(dest, src, codePage, k_DefultChar, defaultCharWasUsed);
+}
+
+AString UnicodeStringToMultiByte(const UString &src, UINT codePage, char defaultChar, bool &defaultCharWasUsed)
+{
+ AString dest;
+ UnicodeStringToMultiByte2(dest, src, codePage, defaultChar, defaultCharWasUsed);
+ return dest;
+}
+
+AString UnicodeStringToMultiByte(const UString &src, UINT codePage)
+{
+ AString dest;
+ bool defaultCharWasUsed;
+ UnicodeStringToMultiByte2(dest, src, codePage, k_DefultChar, defaultCharWasUsed);
+ return dest;
+}