public static void PrintSchema(StringPattern pattern)
{
Console.WriteLine($"Pattern: \"{pattern.Pattern}\"\n\n----- Tokens -----\n");
foreach (Token item in pattern.Tokens)
{
Console.WriteLine($"{item.Type.ToString().ToUpper()}: \"{item.Content}\"");
}
}
public static bool Match(string input, StringPattern pattern, bool debug = false)
{
if (debug)
{
Console.WriteLine($"Pattern: {pattern.Pattern}");
Console.WriteLine($"Input: {input}\n");
}
for (int i = 0; i < pattern.tokens.Count; i++)
{
Token item = pattern.tokens[i];
if (debug)
{
Console.WriteLine($"-> \"{input}\"");
}
switch (item.Type)
{
case TokenType.Required:
if (!input.StartsWith(item.Content))
{
return(false);
}
input = input.Substring(item.Content.Length);
break;
case TokenType.Optional:
if (input.StartsWith(item.Content))
{
input = input.Substring(item.Content.Length);
}
break;
case TokenType.AnyCnTkn:
if (i < pattern.tokens.Count - 1)
{
Token next = null;
for (int j = i + 1; j < pattern.tokens.Count; j++)
{
next = pattern.tokens[j];
if (pattern.tokens[j].Type != TokenType.AnyCnTkn)
{
break;
}
}
if (next != null)
{
int startIndex = input.IndexOf(next.Content);
if (startIndex >= 0)
{
input = input.Substring(startIndex);
}
}
}
else
{
input = string.Empty;
}
break;
case TokenType.SngleTkn:
if (input.Length == 0)
{
return(false);
}
input = input.Substring(1);
break;
default:
throw new NotImplementedException($"The token \"{item.Type} ({item.Content})\" currently is not implemented!");
}
}
bool match = input.Length == 0;
if (debug)
{
Console.WriteLine($"IsMatch: " + match + "\n--------------------------------------------------");
}
return(match);
}
public static bool IsMatch(string pattern, string input)
{
StringPattern sp = Compile(pattern);
return(sp.IsMatch(input));
}