SExp - A S-Expression Parser for C++

SExp is an S-Expression parser for C++.

Example Code:

sexp::Value value = sexp::Parser::from_string("(1 2 3 4 5)")
sexpr::Value const& head = value.get_car();
sexpr::Value const& tail = value.get_cdr();
if (head.is_integer())
{
   std::cout << head.as_int() << std::endl;
}

Arrays vs Cons

When dealing with large amounts of data the classic Scheme list comes with quite abit of a performance penentaly, for this reason SExp allows you to interpret all list as arrays:

sexp::Parser::from_stream(fin, sexp::Parser::USE_ARRAYS);

C++ locales

If C++ locales are used in your code, compile with:

cmake -DSEXP_USE_LOCALE=ON

Otherwise the input and output functions will produce incorrect results (i.e. "1,5" instead of "1.5").