public void TokenizerEOFTest()
{
var tokenizer = new ConditionTokenizer(string.Empty);
tokenizer.GetNextToken();
}
public static TriggerState GetConditionTriggerState(
string expression,
char typedChar, out int triggerLength, out ExpressionNode triggerExpression,
out IReadOnlyList <ExpressionNode> comparandValues
)
{
triggerLength = 0;
triggerExpression = null;
comparandValues = null;
if (expression.Length == 0 || (expression.Length == 0 && expression[0] == '\''))
{
triggerExpression = new ExpressionText(0, "", true);
return(TriggerState.Value);
}
if (expression.Length == 1)
{
triggerExpression = new ExpressionText(0, expression, true);
triggerLength = 1;
return(TriggerState.Value);
}
var tokens = new List <Token> ();
var tokenizer = new ConditionTokenizer();
tokenizer.Tokenize(expression);
int lastExpressionStart = 0;
while (tokenizer.Token.Type != TokenType.EOF)
{
switch (tokenizer.Token.Type)
{
case TokenType.And:
case TokenType.Or:
lastExpressionStart = tokenizer.Token.Position + tokenizer.Token.Value.Length;
break;
}
tokens.Add(tokenizer.Token);
tokenizer.GetNextToken();
}
int last = tokens.Count - 1;
if (last >= 2 && TokenIsCondition(tokens[last - 1].Type))
{
var lt = tokens[last];
if (lt.Type == TokenType.Apostrophe || (lt.Type == TokenType.String && (expression[lt.Position + lt.Value.Length] != '\'')))
{
lastExpressionStart = lt.Position;
comparandValues = ReadPrecedingComparandVariables(tokens, last - 2);
}
else
{
triggerLength = 0;
triggerExpression = null;
return(TriggerState.None);
}
}
var subexpr = expression.Substring(lastExpressionStart);
return(GetTriggerState(subexpr, typedChar, out triggerLength, out triggerExpression, out _));
}
public void TokenizerEOFTest()
{
var tokenizer = new ConditionTokenizer(new SimpleStringReader(string.Empty));
Assert.Throws <ConditionParseException>(() => tokenizer.GetNextToken());
}
public void TokenizerEOFTest()
{
var tokenizer = new ConditionTokenizer(new SimpleStringReader(string.Empty));
tokenizer.GetNextToken();
}