MacRoman -> Unicode

git-svn-id: https://profuse.googlecode.com/svn/trunk@63 aa027e90-d47c-11dd-86d7-074df07e0730

MacRoman.cpp

@@ -0,0 +1,192 @@
+
+#include "MacRoman.h"
+
+/*
+ * mapping of MacRoman characters (0x80-0xff) to unicode.
+ */
+static unsigned m2u[] = {
+    0x00C4,
+    0x00C5,
+    0x00C7,
+    0x00C9,
+    0x00D1,
+    0x00D6,
+    0x00DC,
+    0x00E1,
+    0x00E0,
+    0x00E2,
+    0x00E4,
+    0x00E3,
+    0x00E5,
+    0x00E7,
+    0x00E9,
+    0x00E8,
+    0x00EA,
+    0x00EB,
+    0x00ED,
+    0x00EC,
+    0x00EE,
+    0x00EF,
+    0x00F1,
+    0x00F3,
+    0x00F2,
+    0x00F4,
+    0x00F6,
+    0x00F5,
+    0x00FA,
+    0x00F9,
+    0x00FB,
+    0x00FC,
+    0x2020,
+    0x00B0,
+    0x00A2,
+    0x00A3,
+    0x00A7,
+    0x2022,
+    0x00B6,
+    0x00DF,
+    0x00AE,
+    0x00A9,
+    0x2122,
+    0x00B4,
+    0x00A8,
+    0x2260,
+    0x00C6,
+    0x00D8,
+    0x221E,
+    0x00B1,
+    0x2264,
+    0x2265,
+    0x00A5,
+    0x00B5,
+    0x2202,
+    0x2211,
+    0x220F,
+    0x03C0,
+    0x222B,
+    0x00AA,
+    0x00BA,
+    0x03A9,
+    0x00E6,
+    0x00F8,
+    0x00BF,
+    0x00A1,
+    0x00AC,
+    0x221A,
+    0x0192,
+    0x2248,
+    0x2206,
+    0x00AB,
+    0x00BB,
+    0x2026,
+    0x00A0,
+    0x00C0,
+    0x00C3,
+    0x00D5,
+    0x0152,
+    0x0153,
+    0x2013,
+    0x2014,
+    0x201C,
+    0x201D,
+    0x2018,
+    0x2019,
+    0x00F7,
+    0x25CA,
+    0x00FF,
+    0x0178,
+    0x2044,
+    0x20AC,
+    0x2039,
+    0x203A,
+    0xFB01,
+    0xFB02,
+    0x2021,
+    0x00B7,
+    0x201A,
+    0x201E,
+    0x2030,
+    0x00C2,
+    0x00CA,
+    0x00C1,
+    0x00CB,
+    0x00C8,
+    0x00CD,
+    0x00CE,
+    0x00CF,
+    0x00CC,
+    0x00D3,
+    0x00D4,
+    0xF8FF,
+    0x00D2,
+    0x00DA,
+    0x00DB,
+    0x00D9,
+    0x0131,
+    0x02C6,
+    0x02DC,
+    0x00AF,
+    0x02D8,
+    0x02D9,
+    0x02DA,
+    0x00B8,
+    0x02DD,
+    0x02DB,
+    0x02C7
+};
+
+
+
+bool MacRoman::isASCII() const
+{
+    for (std::string::const_iterator iter = _string.begin(); iter != _string.end(); ++iter)
+    {
+        if (*iter & 0x80) return false;
+    }
+    return true;
+}
+
+std::string MacRoman::toUTF8() const
+{
+    std::string out;
+    out.reserve(_string.length()); 
+
+    for (std::string::const_iterator iter = _string.begin(); iter != _string.end();  ++iter)
+    {
+        char c = *iter;
+        if (c & 0x80 == 0) out.push_back(c);
+        else
+        {
+            unsigned uc = m2u[c & 0x7f];
+            if (uc <= 0x7ff)
+            {
+                out.push_back(0xC0 | (uc >> 6));
+                out.push_back(0x80 | (uc & 0x3f));
+            }
+            else // nothing larger than 0xffff
+            {
+                out.push_back(0xe0 | (uc >> 12));
+                out.push_back(0x80 | ((uc >> 6) & 0x3f));
+                out.push_back(0x80 | (uc & 0x3f));
+            }
+        }
+    }
+
+    return out;
+}
+
+std::wstring MacRoman::toWString() const
+{
+    std::wstring out;
+    out.reserve(_string.length());
+
+    for (std::string::const_iterator iter = _string.begin(); iter != _string.end(); ++iter)
+    {
+        char c = *iter;
+        if (c & 0x80 == 0) out.push_back(c);
+        else out.push_back(m2u[c & 0x7f]);
+    }
+  
+    return out;
+}
+

MacRoman.h

@@ -0,0 +1,26 @@
+
+#ifndef __MACROMAN_H__
+#define __MACROMAN_H__
+
+#include <string>
+
+class MacRoman {
+public:
+    MacRoman(const std::string& string);
+
+    bool isASCII() const;
+    std::string toUTF8() const;
+    std::wstring toWString() const;
+
+
+private:
+    std::string _string;
+};
+
+inline MacRoman::MacRoman(const std::string& string) :
+    _string(string)
+{
+}
+
+#endif
+