//Tokenise using the lexer in F#
public void script(string line)
{
#region Lexing
StringBuilder str = new StringBuilder();
var hookList = new List <string> {
TARGET.HOOK
};
var trigList = new List <bool> {
TARGET.active
};
foreach (Entity ent in ENT_LIST)
{
hookList.Add(ent.HOOK);
trigList.Add(ent.active);
}
var hooks = Inter.interpretStr(line, hookList, trigList);
var tokenList = new List <Token>();
// Add tokens to a C# list manually because there are type conflicts
foreach (Token t in hooks)
{
tokenList.Add(t);
str.Append(Lexer.printToken(t));
}
//CONSOLE.displayMessage(str.ToString());
CONSOLE.appendConsoleLogLine(str.ToString());
#endregion
#region Parsing and executing
if (tokenList[tokenList.Count - 1].IsOP) // Multiple hooks and one operation
{
var entList = new List <Entity>();
for (int t = 0; t + 1 < tokenList.Count; t += 2)
{
//Syntax checking
if (!(tokenList[t + 1].IsEX || tokenList[t + 1].IsOP))
{
CONSOLE.appendConsoleLogLine(string.Format(
"SYNTAX ERROR: {0} can only be proceeded by an expression " +
"(i.e. AND) or an operator (i.e. +/-).",
Lexer.printToken(tokenList[t])));
return;
}
var ent = getEntity(Parser.getVA(tokenList[t]));
if (ent == null)
{
CONSOLE.appendConsoleLogLine(string.Format(
"SYNTAX ERROR: {0} does not exist.",
Lexer.printToken(tokenList[t])));
return;
}
else
{
entList.Add(ent);
}
}
bool op = Parser.getOP(tokenList[tokenList.Count - 1]);
// If the hooks are triggers
int trigCount = 0;
foreach (var ent in entList)
{
if (TRIG_LIST.Contains(ent) && ent.checkActive())
{
trigCount++;
}
}
if (trigCount == TRIG_LIST.Count)
{
TARGET.trigger(new string[] { op.ToString() });
return;
}
// If they're not triggers
foreach (var ent in entList)
{
if (ent.active)
{
ent.trigger(new string[] { op.ToString() });
}
else
{
CONSOLE.appendConsoleLogLine(string.Format(
"SYNTAX ERROR: {0} is not active/doesn't exist, try one of the gears!", ent.HOOK));
}
}
}
else
{
CONSOLE.appendConsoleLogLine(string.Format(
"SYNTAX ERROR: Script must be finished with an operator " +
"(i.e. +/-)."));
return;
}
#endregion
}
public Parser(Lexer lexer)
{
this.lexer = lexer;
currentToken = lexer.GetNextToken();
}
protected internal override bool Match(Lexer lexer)
{
return(choose(lexer) != null);
}
public ASTree Parse(Lexer lexer)
{
return(program.Parse(lexer));
}
static void Main(string[] args)
{
Lexer lexer = new Lexer("if x > y then a-b");
lexer.tokenise();
}