public static SprakBoolean IsKeyPressed(
ExecutionContext context, SprakString key)
{
bool result = context.Computer?.Screen.IsKeyPressed(key.Value) ?? false;
return(SprakBoolean.From(result));
}
// I
public static SprakString Input(
ExecutionContext context, SprakString promt)
{
string result = context.Computer.Screen?.Input(promt.Value);
return(new SprakString(result));
}
// H
public static SprakBoolean HasFunction(ExecutionContext context,
SprakString name)
{
bool exists = context.SignatureResolver
.FindFunctions(name.Value)
.Any();
return(SprakBoolean.From(exists));
}
// B
// What does the broadcast function do?
// C
public static SprakNumber CharToInt(SprakString text)
{
if (double.TryParse(text.Value, out double result))
{
return(new SprakNumber(result));
}
else
{
return(new SprakNumber(double.NaN));
}
}
public static SprakString Add(SprakString left, SprakString right)
{
return(new SprakString(left.Value + right.Value));
}
public static SprakBoolean NotEqual(SprakString left, SprakString right)
{
return(SprakBoolean.From(left != right));
}
public static SprakUnit CopyToClipboard(
ExecutionContext context, SprakString content)
{
context.Computer.Screen?.CopyToClipboard(content.Value);
return(SprakUnit.Value);
}
// T
public static SprakUnit Text(ExecutionContext context,
SprakNumber x, SprakNumber y, SprakString text)
{
context.Computer.Screen?.Text(text.Value, x.Value, y.Value);
return(SprakUnit.Value);
}
public static SprakUnit PrintS(ExecutionContext context, SprakString input)
{
context.Computer.Screen?.PrintS(input.Value);
return(SprakUnit.Value);
}
private static bool TryParse(IList <RawToken> tokens, out Value result)
{
result = null;
if (tokens.Count == 0)
{
return(false);
}
else if (tokens.Count == 1)
{
RawToken token = tokens[0];
string content = token.Content;
switch (token.Type)
{
case TokenType.Boolean
when SprakBoolean.TryParse(content, out SprakBoolean raw):
result = raw;
return(true);
case TokenType.Number
when SprakNumber.TryParse(content, out SprakNumber raw):
result = raw;
return(true);
case TokenType.String:
result = new SprakString(content);
return(true);
}
}
else
{
if (tokens[0].Type != TokenType.KeySymbol || tokens[0].Content[0] != Symbols.OpenSquareBracket)
{
return(false);
}
if (tokens[0].Type != TokenType.KeySymbol || tokens[0].Content[0] != Symbols.CloseSquareBracket)
{
return(false);
}
List <Value> items = new List <Value>();
List <RawToken> current = new List <RawToken>();
for (int i = 1; i < tokens.Count - 1; i++)
{
if (tokens[i].Type == TokenType.KeySymbol && tokens[i].Content[0] == Symbols.Comma)
{
if (!TryParse(tokens, out Value item))
{
return(false);
}
items.Add(item);
current.Clear();
}
else
{
current.Add(tokens[i]);
}
}
}
return(false);
}
