/// <summary>
/// Execute a line of code.
/// </summary>
/// <param name="sender"></param>
/// <param name="line"></param>
/// <param name="output"></param>
internal void ExecLine(Context sender, string line, StringBuilder output)
{
var log = sender.Root.Log;
string key;
Variable[] args;
int i = 0;
char c;
while (i < line.Length && !sender.ExitLine)
{
c = line[i];
++i;
switch (c)
{
case '#':
case '@':
execSplitCommand(sender, line, ref i, out key, out args);
if (key != null)
{
Variable variable = sender.Get(new Key(key, sender), log);
if (variable == null || variable.IsSet == false)
continue;
var func = variable.Value as Function;
if (func != null)
variable = func(sender, args);
// ToDo : Do we need to do anything to other value types?
// output if @
if (c == '@' && variable != null)
variable.WriteValueUser(sender, output);
}
else
{
if (c == '@' && args != null && args.Length > 0 && args[0] != null)
args[0].WriteValueUser(sender, output);
}
break;
//case '\\':
// ToDo : escape character.
//break;
default:
output.Append(c);
break;
}
}
}
/// <summary>
/// Check whats in sb, then add it to the list.
/// [float, bool, and, or, variable]
/// </summary>
/// <returns>false if nothing was added.</returns>
private void execParenthCheckAdd(Context sender, List<execParenthItem> items, StringBuilder sb)
{
if (sb.Length == 0)
return;
bool isFloat;
bool isPercent;
string str = KeyClean(sb.ToString(), out isFloat, out isPercent, sender.Root.Log);
sb.Clear();
if (str == null)
return;
// is str float?
if (isFloat)
items.Add(new Variable(float.Parse(str)));
// percent to float?
else if (isPercent)
items.Add(new Variable(float.Parse(str) * 0.01f));
// bool
else if (str == "true")
items.Add(new Variable(true));
else if (str == "false")
items.Add(new Variable(false));
// logic operators
else if (str == "not")
items.Add(Operators.Not);
else if (str == "and")
items.Add(Operators.And);
else if (str == "or")
items.Add(Operators.Or);
else // variable
items.Add(sender.Get(new Key(str, sender)));
return;
}