Number Parser::createNumber(string number, char first){
Number result;
//This is probably lazy/ bad, but it basically makes sure that theres no junk before the actual operation.
if (first != 's' && number.find("rt:") > 0){
string base (number.find(':')+1, -1);
string radicand (0, number.find('r')-1);
result = Radical(createNumber(base, base.front()), createNumber(radicand, radicand.front()));
}
else if (first=='p' && number.at(1) =='i' && number.length() == 2){
//create pi
result = Constant("pi");
}
else if (first=='e' && number.length() == 1){
//create e
result = Constant("e");
}
else if (first == 's' && number.find("sqrt:") > 0){
//create a square root
string base (number.find(':')+1, -1);
result = Radical(createNumber(base, base.front()), Integer(2));
}
else if (first == 'l' && number.find("log_") > 0){
//create a log
string base (number.find('_')+1, number.find(':'));
string arg (number.find(':')+1, -1);
result = Log(createNumber(base, base.front()), createNumber(arg, arg.front()));
}
//all numbers are created here
else if (isdigit(first) && number.find_last_not_of("0123456789./") != -1){
//find a '/' to create a fraction
if(number.find_first_of('/') > 0){
//check to make sure there is only one '/' in the fraction
if (number.find_first_of('/') != number.find_last_of('/')) {
//temporary error handling
throw "Only one / per fracton";
}
//create a rational
string numerator (0, number.find('/')-1);
string denom ( number.find('/') + 1, -1);
result = Rational(createNumber(numerator, numerator.front()), createNumber(denom, denom.front()));
}
if(number.find_first_of('.') > 0){
if (number.find_first_of('.') != number.find_last_of('.')){
throw "Only one . per decimal";
}
//create a rational from a decimal
result = Rational(number));
}
//finally, create an integer
result = Integer(stoi(number));
}
return result;
}
void Rad::load()
{
if (loaded)
return;
KStandardDirs *dirs = KGlobal::dirs();
QString radkfile = dirs->findResource("data", "kiten/radkfile");
if (radkfile.isNull())
{
KMessageBox::error(0, i18n("Kanji radical information file not installed, so radical searching cannot be used."));
return;
}
QFile f(radkfile);
if (!f.open(IO_ReadOnly))
{
KMessageBox::error(0, i18n("Kanji radical information could not be loaded, so radical searching cannot be used."));
}
QTextStream t(&f);
t.setCodec(QTextCodec::codecForName("eucJP"));
Radical cur;
while (!t.eof())
{
QString s = t.readLine();
QChar first = s.at(0);
if (first == '#') // comment!
{
// nothing
}
else if (first == '$') // header
{
// save previous one
if( !cur.kanji().isNull() )
list.append(cur);
//first entry is trim(last 4 chars).. <rad><space><strokes>
unsigned int strokes = s.right(2).toUInt();
QString radical = QString(s.at(2));
cur = Radical(radical, strokes);
}
else // continuation
{
cur.addKanji(s);
}
}
// we gotta append the last one!!
// this nagged jasonkb for a bit wondering why fue wasn't showing up ;)
list.append(cur);
f.close();
loaded = true;
}
