Initial commit

Torque/SDK/engine/platform/platformString.cc

@@ -0,0 +1,109 @@
+//-----------------------------------------------------------------------------
+// Torque Game Engine 
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#include "platform/platform.h"
+#include "platform/profiler.h"
+
+// An explanation of the following bit twiddling:
+//----------------------------------------------------------------
+//  UTF8 encodes characters with a varying # of bytes.
+//  first byte of a UTF8 char is either or
+//  0x(xxxxxx)
+//  11(xxxxxx)
+//
+//  0xxx xxxx & 0xC0 = 0000 0000 or 0100 0000 = 0x00 or 0x40
+//  11xx xxxx & 0xC0 = 1100 0000              = 0xC0
+//
+//  all middle bytes of UTF8 chars start with
+//  10(xxxxxx)
+//
+//  10xx xxxx & 0xC0 = 1000 0000 = 0x80
+//
+//  so, a bitwise and against 0xC0 will detect whether we are in the middle of a UTF8 char or not.
+//
+//  see: http://en.wikipedia.org/wiki/UTF8 for a good clear explanation of UTF8
+/*
+UTF16 getFirstUTF8Char(const UTF8 *string)
+{
+    if(string == NULL || *string == 0)
+        return 0;
+
+    PROFILE_START(getFirstUTF8Char);
+
+    if(*string & 0xc0 == 0x80)
+    {
+        // We're in the middle of a character, find the next one
+        string = getNextUTF8Char(string);
+    }
+
+    UTF8 s[5];
+    const UTF8 *ptr;
+    
+    // Get first UTF-8 char
+    for(ptr = string+1;(*ptr & 0xc0) == 0x80 && *ptr;ptr++)
+    {
+    }
+
+    dStrncpy((char *)s, (const char *)string, ptr - string);
+    s[ptr - string] = 0;
+    
+    UTF16 buf[3];
+    convertUTF8toUTF16(s, buf, sizeof(buf));
+
+    PROFILE_END();
+
+    return buf[0];
+}
+
+const UTF8 *getNextUTF8Char(const UTF8 *ptr)
+{
+    while(*ptr)
+    {
+        ptr++;
+        if((*ptr & 0xc0) != 0x80)
+            return ptr;
+    }
+
+    return NULL;
+}
+
+const UTF8 *getNextUTF8Char(const UTF8 *ptr, const U32 n)
+{
+   for(U32 i=0; i<n && ptr; i++)
+      ptr = getNextUTF8Char(ptr);
+
+   return ptr;
+}
+*/ 
+//-------------------------------------------------------------------------
+
+const char *getCharSetName(const U32 charSet)
+{
+   switch(charSet)
+   {
+   case TGE_ANSI_CHARSET:        return "ansi";
+   case TGE_SYMBOL_CHARSET:      return "symbol";
+   case TGE_SHIFTJIS_CHARSET:    return "shiftjis";
+   case TGE_HANGEUL_CHARSET:     return "hangeul";
+   case TGE_HANGUL_CHARSET:      return "hangul";
+   case TGE_GB2312_CHARSET:      return "gb2312";
+   case TGE_CHINESEBIG5_CHARSET: return "chinesebig5";
+   case TGE_OEM_CHARSET:         return "oem";
+   case TGE_JOHAB_CHARSET:       return "johab";
+   case TGE_HEBREW_CHARSET:      return "hebrew";
+   case TGE_ARABIC_CHARSET:      return "arabic";
+   case TGE_GREEK_CHARSET:       return "greek";
+   case TGE_TURKISH_CHARSET:     return "turkish";
+   case TGE_VIETNAMESE_CHARSET:  return "vietnamese";
+   case TGE_THAI_CHARSET:        return "thai";
+   case TGE_EASTEUROPE_CHARSET:  return "easteurope";
+   case TGE_RUSSIAN_CHARSET:     return "russian";
+   case TGE_MAC_CHARSET:         return "mac";
+   case TGE_BALTIC_CHARSET:      return "baltic";
+   }
+
+   AssertISV(false, "getCharSetName - unknown charset! Update table in platformString.cc!");
+   return "";
+}