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// 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_DefaultEncoding(Opts::Western), m_Orientation(Opts::LeftToRight), m_Groups(0)
{
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;
}
}
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