public override bool TryGetTokenFromInput(ITextCursor textCursor, out string token)
{
var match = false;
token = null;
if (ValidValues != null &&
ValidValues.Length > 0)
{
string matchText = null;
var queryText = string.Empty;
while (true)
{
var tokenPeek = textCursor.Peek();
if (string.IsNullOrWhiteSpace(tokenPeek))
{
break;
}
if (textCursor.RightToLeftParsing)
{
queryText = $"{tokenPeek} {queryText}";
}
else
{
queryText = $"{queryText} {tokenPeek}";
}
queryText = queryText.Trim();
string[] matchTexts;
if (textCursor.RightToLeftParsing)
{
matchTexts = ValidValues
.Where(t => t.EndsWith(queryText, StringComparison.InvariantCultureIgnoreCase))
.OrderByDescending(t => t.Length)
.ToArray();
}
else
{
matchTexts = ValidValues
.Where(t => t.StartsWith(queryText, StringComparison.InvariantCultureIgnoreCase))
.OrderByDescending(t => t.Length)
.ToArray();
}
if (matchTexts.Length >= 1)
{
// Avança o cursor
textCursor.Next();
if (matchTexts.Any(t => t.Equals(queryText, StringComparison.InvariantCultureIgnoreCase)))
{
matchText = queryText;
}
}
else
{
break;
}
}
if (!string.IsNullOrEmpty(matchText))
{
token = matchText;
match = true;
}
}
else
{
var queryText = textCursor.All();
if (!string.IsNullOrEmpty(queryText))
{
token = queryText;
match = true;
}
}
return(match);
}
