uint64 htmInterface::lookupIDCmd(char *str) {
cmd_ = str;
if(t_)delete t_;
t_ = new VarStrToken(cmd_);
float64 v[3];
cmdCode code = getCode();
if(code == NAME) {
VarStr token = t_->next();
if(token.empty())
throw SpatialInterfaceError("htmInterface:lookupIDCmd: expected Name");
return index_->idByName(token.data());
}
getDepth();
if(! parseVec(code, v) )
throw SpatialInterfaceError("htmInterface:lookupIDCmd: Expect vector in Command. ", cmd_.data());
if( code == J2000 )
return lookupID(v[0], v[1]);
return lookupID(v[0], v[1], v[2]);
}
// parse the string, returning the number of floats
// that have been in the string.
bool
htmInterface::parseVec( cmdCode code, float64 *v) {
VarStr token;
size_t i = 0, len;
if(code == J2000)
len = 2;
else if(code == CARTESIAN)
len = 3;
else
throw SpatialInterfaceError("htmInterface:parseVec: Expected code J2000 or CARTESIAN.");
// parse the next len positions
while( i < len ) {
token = t_->next();
if(token.empty())break;
if(!isFloat(token))
throw SpatialInterfaceError("htmInterface:parse: Expected float at this position of Command. ",cmd_.data());
if(i == len)
throw SpatialInterfaceError("htmInterface:parse: Expect less floats in Command. ", cmd_.data());
v[i++] = atof(token.data());
}
if(i < len)
return false;
return true;
}
// check whether string is a float
bool htmInterface::isFloat(const VarStr &str) {
if(str.empty()) return false;
uint32 len = str.length();
return (strspn(str.data(),"+-.e0123456789") == len) ? true : false ;
}