v2.9.0 Preview Release

There are numerous changes in this release. One of the most notable is a new macro macro for writing macros. Example:

using System.Text.RegularExpressions;

macro countDigits($(str && str.Value is string strValue))
{
    var regex = new Regex("[0-9]");
    return LNode.Literal(regex.Matches(strValue).Count);
}
int i = countDigits("I have 25 apples an 7 bananas");

// Generated from Demo.ecs by LeMP 2.9.0.0.
using System.Text.RegularExpressions;

int i = 3;