1 files changed, 140 insertions, 0 deletions
diff --git a/inputmethods/dasher/Alphabet.cpp b/inputmethods/dasher/Alphabet.cpp
new file mode 100644
index 0000000..dc58b35
--- a/dev/null
+++ b/inputmethods/dasher/Alphabet.cpp
@@ -0,0 +1,140 @@
+// Alphabet.cpp
+//
+/////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2001-2002 David Ward
+//
+/////////////////////////////////////////////////////////////////////////////
+
+#include "Alphabet.h"
+#include "AlphabetMap.h"
+
+//#include <iostream>
+//WinCE doesn't have iostream!
+
+using namespace Dasher;
+using namespace std;
+
+
+CAlphabet::CAlphabet() : m_Groups(0), m_DefaultEncoding(Opts::Western), m_Orientation(Opts::LeftToRight)
+{
+	m_Characters.push_back("");
+	m_Display.push_back("");
+	m_Colours.push_back("");
+	m_Foreground.push_back("");
+	m_Group.push_back(0);
+}
+
+
+void CAlphabet::GetSymbols(vector<symbol>* Symbols, string* Input, bool IsMore)
+{
+	string Tmp;
+	symbol CurSymbol=0, TmpSymbol=0;
+	bool KeyIsPrefix;
+	int z= Input->size();
+	int extras;
+	unsigned int bit;
+
+	for (unsigned int i=0; i<Input->size(); i++) {
+
+		Tmp = (*Input)[i];
+
+		/* The string we've been given is in UTF-8. The symbols are
+		   also in UTF-8, so we need to pass the entire UTF-8 character
+		   which may be several bytes long. RFC 2279 describes this
+		   encoding */
+
+		if ((*Input)[i] & 0x80) { // Character is more than 1 byte long
+		  extras = 1;
+		  for (bit = 0x20; ((*Input)[i] & bit) != 0; bit >>= 1)
+		    extras++;
+		  if (extras > 5) {
+		  } // Malformed character
+		  while (extras-->0) {
+		    Tmp += (*Input)[++i];
+		  }
+		}
+
+		CurSymbol = TextMap.Get(Tmp, &KeyIsPrefix);
+
+		if (KeyIsPrefix) {
+			CurSymbol = 0;
+			for (; i<Input->size(); i++) {
+
+				Tmp += (*Input)[i];
+
+				TmpSymbol = TextMap.Get(Tmp, &KeyIsPrefix);
+				if (TmpSymbol>0) {
+					CurSymbol = TmpSymbol;
+				}
+				if (!KeyIsPrefix) {
+					if (CurSymbol!=0) {
+						Symbols->push_back(CurSymbol);
+					} else {
+						i -= Tmp.size()-1;
+						//Tmp.erase(Tmp.begin(), Tmp.end());
+						Tmp = "";
+					}
+					break;
+				}
+			}
+		} else {
+			if (CurSymbol!=0)
+				Symbols->push_back(CurSymbol);
+		}
+	}
+
+	if (IsMore)
+		if (KeyIsPrefix)
+			*Input = Tmp;
+		else
+			*Input = "";
+	else
+		if (KeyIsPrefix)
+			Symbols->push_back(CurSymbol);
+}
+
+
+// add single char to the character set
+void CAlphabet::AddChar(const string NewCharacter, const string Display, const string Colour, const string Foreground)
+{
+	m_Characters.push_back(NewCharacter);
+	m_Display.push_back(Display);
+	m_Colours.push_back(Colour);
+	m_Foreground.push_back(Foreground);
+	m_Group.push_back(m_Groups);
+
+	symbol ThisSymbol = m_Characters.size()-1;
+	TextMap.Add(NewCharacter, ThisSymbol);
+}
+
+
+void CAlphabet::StartNewGroup()
+{
+	m_Groups++;
+}
+
+
+// diagnostic dump of character set
+void CAlphabet::dump() const {
+// TODO
+/*
+	dchar deb[256];
+	unsigned int i;
+	for (i=1;i<m_vtCharacters.size();i++) {
+		//wsprintf(deb,TEXT("%d %c %d\n"),i,m_vtCharacters[i],m_viGroup[i]); // Windows specific
+		Usprintf(deb,TEXT("%d %c %d\n"),i,m_vtCharacters[i],m_viGroup[i]);
+		DebugOutput(deb);
+	}
+*/
+}
+
+int CAlphabet::GetTextColour(symbol Symbol)
+{
+  std::string TextColour=m_Foreground[Symbol];
+  if (TextColour != "") {
+    return atoi(TextColour.c_str());
+  } else {
+    return 0;
+  }
+}