diff options
Diffstat (limited to 'cpp/src/IceUtil/Unicode.cpp')
| -rw-r--r-- | cpp/src/IceUtil/Unicode.cpp | 298 |
1 files changed, 149 insertions, 149 deletions
diff --git a/cpp/src/IceUtil/Unicode.cpp b/cpp/src/IceUtil/Unicode.cpp index 2997a6e4dc7..d440bb00fe5 100644 --- a/cpp/src/IceUtil/Unicode.cpp +++ b/cpp/src/IceUtil/Unicode.cpp @@ -1,149 +1,149 @@ -// ********************************************************************** -// -// Copyright (c) 2001 -// Mutable Realms, Inc. -// Huntsville, AL, USA -// -// All Rights Reserved -// -// ********************************************************************** - -#include <IceUtil/Unicode.h> -#include <algorithm> - -using namespace std; - -string -IceUtil::wstringToString(const wstring& str) -{ - string result; - result.reserve(str.length() * 2); - - for(unsigned int i = 0; i < str.length(); ++i) - { - wchar_t wc; - wc = str[i]; - - if(wc < 0x80) - { - result += static_cast<char>(wc); - } - else if(wc < 0x800) - { - result += 0xc0 | (wc>>6); - result += 0x80 | (wc & 0x3f); - } - else if(wc < 0x10000) - { - result += 0xe0 | (wc>>12); - result += 0x80 | ((wc>>6) & 0x3f); - result += 0x80 | (wc & 0x3f); - } - else if(wc < 0x10FFFF) - { - result += 0xf0 | (wc>>18); - result += 0x80 | ((wc>>12) & 0x3f); - result += 0x80 | ((wc>>6) & 0x3f); - result += 0x80 | (wc & 0x3f); - } - else - { - return result; // Error, not encodable. - } - } - - return result; -} - -wstring -IceUtil::stringToWstring(const string& str) -{ - wstring result; - result.reserve(str.length()); - - unsigned int len; - for(unsigned int i = 0; i < str.length(); i += len) - { - unsigned char c = str[i]; - wchar_t wc; - int minval; - - if(c < 0x80) - { - wc = c; - len = 1; - minval = 0; - } - else if(c < 0xc0) // Lead byte must not be 10xxxxxx - { - return result; // Error, not encodable. - } - else if(c < 0xe0) // 110xxxxx - { - wc = c & 0x1f; - len = 2; - minval = 0x80; - } - else if(c < 0xf0) // 1110xxxx - { - wc = c & 0xf; - len = 3; - minval = 0x800; - } -#if SIZEOF_WCHAR_T >= 4 - else if(c < 0xf8) // 11110xxx - { - wc = c & 7; - len = 4; - minval = 0x10000; - } - else if(c < 0xfc) // 111110xx - { - // Length 5 and 6 is declared invalid in Unicode 3.1 and ISO 10646:2001. - wc = c & 3; - len = 5; - minval = 0x110000; - } - else if(c < 0xfe) // 1111110x - { - // Length 5 and 6 is declared invalid in Unicode 3.1 and ISO 10646:2001. - wc = c & 1; - len = 6; - minval = 0x4000000; - } -#endif - else - { - return result; // Error, not encodable. - } - - if(i + len - 1 < str.length()) - { - for(unsigned int j = 1; j < len; ++j) - { - if((str[i + j] & 0xc0) != 0x80) // All other bytes must be 10xxxxxx - { - return result; // Error, not encodable. - } - - wc <<= 6; - wc |= str[i + j] & 0x3f; - } - - if(wc < minval) - { - return result; // Error, non-shortest form. - } - else - { - result += wc; - } - } - else - { - return result; // Error, not encodable. - } - } - - return result; -} +// **********************************************************************
+//
+// Copyright (c) 2001
+// Mutable Realms, Inc.
+// Huntsville, AL, USA
+//
+// All Rights Reserved
+//
+// **********************************************************************
+
+#include <IceUtil/Unicode.h>
+#include <algorithm>
+
+using namespace std;
+
+string
+IceUtil::wstringToString(const wstring& str)
+{
+ string result;
+ result.reserve(str.length() * 2);
+
+ for(unsigned int i = 0; i < str.length(); ++i)
+ {
+ wchar_t wc;
+ wc = str[i];
+
+ if(wc < 0x80)
+ {
+ result += static_cast<char>(wc);
+ }
+ else if(wc < 0x800)
+ {
+ result += 0xc0 | (wc>>6);
+ result += 0x80 | (wc & 0x3f);
+ }
+ else if(wc < 0x10000)
+ {
+ result += 0xe0 | (wc>>12);
+ result += 0x80 | ((wc>>6) & 0x3f);
+ result += 0x80 | (wc & 0x3f);
+ }
+ else if(wc < 0x10FFFF)
+ {
+ result += 0xf0 | (wc>>18);
+ result += 0x80 | ((wc>>12) & 0x3f);
+ result += 0x80 | ((wc>>6) & 0x3f);
+ result += 0x80 | (wc & 0x3f);
+ }
+ else
+ {
+ return result; // Error, not encodable.
+ }
+ }
+
+ return result;
+}
+
+wstring
+IceUtil::stringToWstring(const string& str)
+{
+ wstring result;
+ result.reserve(str.length());
+
+ unsigned int len;
+ for(unsigned int i = 0; i < str.length(); i += len)
+ {
+ unsigned char c = str[i];
+ wchar_t wc;
+ int minval;
+
+ if(c < 0x80)
+ {
+ wc = c;
+ len = 1;
+ minval = 0;
+ }
+ else if(c < 0xc0) // Lead byte must not be 10xxxxxx
+ {
+ return result; // Error, not encodable.
+ }
+ else if(c < 0xe0) // 110xxxxx
+ {
+ wc = c & 0x1f;
+ len = 2;
+ minval = 0x80;
+ }
+ else if(c < 0xf0) // 1110xxxx
+ {
+ wc = c & 0xf;
+ len = 3;
+ minval = 0x800;
+ }
+#if SIZEOF_WCHAR_T >= 4
+ else if(c < 0xf8) // 11110xxx
+ {
+ wc = c & 7;
+ len = 4;
+ minval = 0x10000;
+ }
+ else if(c < 0xfc) // 111110xx
+ {
+ // Length 5 and 6 is declared invalid in Unicode 3.1 and ISO 10646:2001.
+ wc = c & 3;
+ len = 5;
+ minval = 0x110000;
+ }
+ else if(c < 0xfe) // 1111110x
+ {
+ // Length 5 and 6 is declared invalid in Unicode 3.1 and ISO 10646:2001.
+ wc = c & 1;
+ len = 6;
+ minval = 0x4000000;
+ }
+#endif
+ else
+ {
+ return result; // Error, not encodable.
+ }
+
+ if(i + len - 1 < str.length())
+ {
+ for(unsigned int j = 1; j < len; ++j)
+ {
+ if((str[i + j] & 0xc0) != 0x80) // All other bytes must be 10xxxxxx
+ {
+ return result; // Error, not encodable.
+ }
+
+ wc <<= 6;
+ wc |= str[i + j] & 0x3f;
+ }
+
+ if(wc < minval)
+ {
+ return result; // Error, non-shortest form.
+ }
+ else
+ {
+ result += wc;
+ }
+ }
+ else
+ {
+ return result; // Error, not encodable.
+ }
+ }
+
+ return result;
+}
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