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 d440bb00fe5..2997a6e4dc7 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; +} |