static void parseAVar(bool diamond){
// it's a valid type
char buf[256];
bool autoRange=false;
float mn=0,mx=0;
int size;
RawDataBuffer *b;
tok.getnextident(buf); // get name
// if diamond, get topic and datum index
char tname[256];
int idx;
#if DIAMOND
if(diamond){
tok.getnextcheck(T_TOPIC);
tok.getnextident(tname);
tok.getnextcheck(T_COMMA);
idx = tok.getnextint();
diamondMap[DiamondTopicKey(tname,idx)]=QString(buf);
diamondapparatus::subscribe(tname);
if(!diamondSet.contains(tname))
diamondSet.insert(tname);
}
#endif
size = tok.getnextint(); // and size
// now get the range
tok.getnextcheck(T_RANGE);
switch(tok.getnext()){
case T_INT:
case T_FLOAT:
mn = tok.getfloat();
tok.getnextcheck(T_TO);
mx = tok.getnextfloat();
break;
case T_AUTO:
autoRange=true;
break;
default:
throw UnexpException(&tok,"number or 'auto'");
break;
}
b=createVar(T_NAMEFLOAT,buf,size,mn,mx);
if(autoRange)
((DataBuffer<float>*)b)->setAutoRange();
}
DataBuffer<float> *ConfigManager::parseFloatSource(){
DataBuffer<float> *b;
char buf[256];
switch(tok.getnext()){
case T_VAR:
tok.getnextident(buf);
b = DataManager::findFloatBuffer(buf);
if(!b)
throw ParseException(&tok).set("undefined variable '%s'",buf);
break;
case T_EXPR:
tok.getnextstring(buf);
// OK, we're going to lose a reference to this, but such is life.
// In this version we never delete expressions anyway.
try {
b = (new Expression(buf))->buffer;
} catch(Exception& e){
throw Exception(e,tok.getline());
}
// now parse the extra bits
tok.getnextcheck(T_RANGE);
float mn,mx;
switch(tok.getnext()){
case T_INT:
case T_FLOAT:
mn = tok.getfloat();
tok.getnextcheck(T_TO);
mx = tok.getnextfloat();
b->setMinMax(mn,mx);
break;
case T_AUTO:
b->setAutoRange();
break;
default:
throw UnexpException(&tok,"expected number or 'auto'");
}
break;
default:
throw UnexpException(&tok,"'var' or 'expr'");
}
return b;
}