public bool BuildCodeCommands()
{
var scopes = new Stack <CodeScope>();
contentRootScope = new CodeScope();
var ctx = new CodeContext()
{
latestComments = null,
activeScope = contentRootScope,
latestCommand = null
};
#if true
while (CurrentSymbol != null)
{
var currentSymbol = CurrentSymbol;
if (currentSymbol is ISeparator)
{
if (ctx.latestCommand == null)
{
return(false);
}
}
if (ctx.latestCommand != null &&
ctx.latestCommand.CanAbsorb(currentSymbol))
{
ctx.latestCommand.Add(currentSymbol);
cursorSymbol++;
continue;
}
if (ctx.activeScope != null &&
ctx.activeScope.CanAbsorb(currentSymbol))
{
cursorSymbol++;
continue;
}
switch (currentSymbol)
{
case ISeparator separator:
{
//If the separator has not been absorbed, it's considered a failure
return(false);
}
case IScopeOpen opener:
{
if (ctx.latestCommand != null && !ctx.latestCommand.AllowInternalScope)
{
return(false);
}
var newScope = registry.SymbolToCommand[currentSymbol.GetType()]() as CodeScope;
if (newScope == null)
{
return(false);
}
newScope.opener = opener;
newScope.Add(ctx.latestComments);
if (ctx.latestCommand != null)
{
newScope.owner = ctx.latestCommand;
ctx.latestCommand.Add(newScope);
}
else
{
newScope.owner = ctx.activeScope;
ctx.activeScope.Add(newScope);
}
scopes.Push(ctx.activeScope);
ctx.activeScope = newScope;
ctx.latestCommand = null;
break;
}
case IScopeClose closer:
{
if (scopes.Count == 0)
{
return(false);
}
if (!ctx.activeScope.Match(closer))
{
return(false);
}
ctx.activeScope.Close();
ctx.activeScope = scopes.Pop();
ctx.latestComments = new CodeComment();
ctx.latestCommand = null;
break;
}
case IComment keywordComment:
case LiteralValue literalValue:
{
var newCommand = registry.SymbolToCommand[currentSymbol.GetType()]() as CodeCommand;
if (newCommand == null)
{
return(false);
}
if (currentSymbol is IComment)
{
if (ctx.latestComments == null)
{
ctx.latestComments = newCommand as CodeComment;
}
}
else
{
ctx.latestCommand = newCommand;
}
newCommand.Add(currentSymbol);
break;
}
case IKeyword keywordSymbol:
{
var newKeyword = registry.SymbolToCommand[currentSymbol.GetType()]() as CodeKeyword;
if (newKeyword == null)
{
return(false);
}
newKeyword.keyword = keywordSymbol;
newKeyword.Add(ctx.latestComments);
ctx.activeScope.Add(newKeyword);
ctx.latestCommand = newKeyword;
break;
}
case IClearCommand clearCommand:
{
ctx.latestCommand = null;
break;
}
}
cursorSymbol++;
}
#else
while (CurrentSymbol != null)
{
var currentSymbol = CurrentSymbol;
if (currentSymbol is IComment commentSymbol)
{
ctx.latestComments.Set(commentSymbol);
cursorSymbol++;
continue;
}
if (currentSymbol is ScopeCodeBegin)
{
if (ctx.latestCommand != null && !ctx.latestCommand.AllowInternalScope)
{
return(false);
}
var newScope = new CodeScope();
newScope.Add(ctx.latestComments);
if (ctx.latestCommand != null)
{
ctx.latestCommand.Add(newScope);
}
else
{
ctx.activeScope.Add(newScope);
}
scopes.Push(ctx.activeScope);
ctx.activeScope = newScope;
ctx.latestCommand = null;
}
else if (currentSymbol is ScopeCodeEnd)
{
if (scopes.Count == 0)
{
return(false);
}
ctx.activeScope = scopes.Pop();
ctx.latestComments = new CodeComment();
ctx.latestCommand = null;
}
if (currentSymbol is Keyword keywordSymbol)
{
var newKeyword = new CodeKeyword {
keyword = keywordSymbol
};
newKeyword.Add(ctx.latestComments);
ctx.activeScope.Add(newKeyword);
ctx.latestCommand = newKeyword;
if (!(NextSymbol is ScopeInvokeBegin))
{
if (NextSymbol == null)
{
return(false);
}
cursorSymbol++;
continue;
}
cursorSymbol++;
var latestSymbol = (Symbol)null;
var foundInvokeEnd = false;
cursorSymbol++;
while (CurrentSymbol != null)
{
currentSymbol = CurrentSymbol;
if (currentSymbol is VariableSeparator)
{
if (!(latestSymbol is Keyword))
{
return(false);
}
}
else if (currentSymbol is Keyword argSymbol)
{
if (latestSymbol is Keyword)
{
return(false);
}
newKeyword.Add(argSymbol);
}
else if (currentSymbol is ScopeInvokeEnd)
{
foundInvokeEnd = true;
break;
}
else
{
return(false);
}
latestSymbol = currentSymbol;
cursorSymbol++;
}
if (!foundInvokeEnd)
{
return(false);
}
}
if (currentSymbol is LiteralValue literalSymbol)
{
var newLiteral = new CodeLiteral();
newLiteral.Add(literalSymbol);
ctx.activeScope.Add(newLiteral);
if (!(NextSymbol is LiteralValue))
{
if (NextSymbol == null)
{
return(false);
}
cursorSymbol++;
continue;
}
cursorSymbol++;
while (CurrentSymbol != null)
{
currentSymbol = CurrentSymbol;
if (currentSymbol is LiteralValue nextLiteral)
{
newLiteral.Add(nextLiteral);
}
if (!(NextSymbol is LiteralValue))
{
break;
}
cursorSymbol++;
}
}
cursorSymbol++;
}
#endif
return(true);
}
