public static void Main(string[] args)
{
Test("");
Test(" ");
Test("false ");
Test(" true");
Test(" null ");
Test(" 123 ");
Test("-456 ");
Test(" +7 ");
Test(" 3.151927 ");
Test(" +2.718 ");
Test("1.6e-19");
Test(" 6.022E23 ");
Test(" 5E-1 ");
Test(" .5 "); //should throw
Test(" -.5 "); //should throw
Test(" +5. "); //should throw
Test("myvar ");
Test(" w0rd");
Test("_abc_def_");
Test("my.multi.level.reference");
Test("'single-quoted string'");
Test("\"double-quoted string\"");
//Test("'here is a \"nested string\"'");
//Test(@"'here is a ""nested escaped string""'");
Test("zero == zero ");
Test(" black != white");
Test(" 12 < 45");
Test("20 >4");
Test("10<=100");
Test("100 >= 1");
Test("!false==!!true");
Test("to_be || !to_be");
Test(" maccheroni || spaghetti || rigatoni");
Test(" sex && drug && rock && roll ");
Test("!me || you && !they ");
Test("a==b && c!=d");
Test("pname match/abc/");
Test("pname match /xyz/i");
Test("pname match /(\\w+)\\s(\\w+)/");
Test("(!me ||you)&&they");
Test("!(a=='q') && (b!='x')");
Test("(a || b) && (c || d) || (e && f)");
Test("! (a && (b && c || d && e) || (g == h && j))");
Test("!! (((a)==b) && ((((c && ((g)))))))");
#if DOC
System.IO.File.WriteAllText(@"i:\temp\parser_output.txt", _sb.ToString());
#endif
{
XTreeNodeBase node = XTreeNodeBase.Parse("! (a && (b && c || d && e) || (g == h && j))");
const int N = 1000;
var sw = new Stopwatch();
sw.Start();
XSolverResult sr;
for (int i = 0; i < N; i++)
{
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
sr = node.Resolve(_ctx);
}
sw.Stop();
Console.WriteLine($"Elapsed: {sw.ElapsedMilliseconds}ms; {sw.ElapsedMilliseconds * 100.0 / N}us/each");
}
Console.WriteLine("Process complete.");
Console.ReadKey();
}
private static void Test(
string text
)
{
#if DOC
_sb.AppendLine("Expression:");
_sb.AppendFormat("`{0}`", text);
_sb.AppendLine();
_sb.AppendLine();
_sb.AppendLine("Result:");
_sb.AppendLine("```");
try
{
TreeNodeBase node = Parser.Parse(text);
XElement xelem = ToXml(node);
_sb.Append(xelem);
}
catch (Exception ex)
{
_sb.Append(ex.Message);
}
_sb.AppendLine();
_sb.AppendLine("```");
_sb.AppendLine("***");
_sb.AppendLine();
_sb.AppendLine();
#else
Console.WriteLine($"Source expression: {text}");
try
{
//parsing
XTreeNodeBase xtree = XTreeNodeBase.Parse(text);
//compact serialization
var cser = new XTreeCompactSerializer();
cser.ShouldPad = true;
string xstr = cser.Serialize(xtree);
Console.WriteLine($"Serialized: {xstr}");
//xml serialization
var xser = new XTreeXmlSerializer();
XElement xelem = xser.Serialize(xtree);
Console.WriteLine(xelem);
//evaluation (against the sample context)
XSolverResult sr = xtree.Resolve(_ctx);
Console.WriteLine($"Result: {sr.Error ?? sr.Data}");
//verify the compact serialization
try
{
XTreeNodeBase xtreeAlt = XTreeNodeBase.Parse(xstr);
XElement xelemAlt = xser.Serialize(xtreeAlt);
if (xelem.ToString() != xelemAlt.ToString())
{
//fail!
}
}
catch (Exception ex)
{
Console.WriteLine("Verify error: " + ex.Message);
}
}
catch (Exception ex)
{
Console.WriteLine("Test error: " + ex.Message);
}
Console.WriteLine();
Console.WriteLine();
#endif
}