private double doNamedVal(int beg, int end) {
while (beg < end && Character.isWhitespace(expression.charAt(end))) {
end--;
} // since a letter triggers a named value, this can never reduce to beg==end
String nam = expression.substring(beg, (end + 1));
Double val;
if ((val = constants.get(nam)) != null) {
return val.doubleValue();
} else if ((val = variables.get(nam)) != null) {
isConstant = false;
return val.doubleValue();
} else if (relaxed) {
isConstant = false;
return 0.0;
}
throw exception(beg, "Unrecognized constant or variable \"" + nam + "\"");
}
private int skipWhitespace(String exp, int ofs, int end) {
while (ofs <= end && Character.isWhitespace(exp.charAt(ofs))) {
ofs++;
}
return ofs;
}