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;
+  }
+}