public static bool TryParseMany(string s, out Bracket[] result)
{
result = null;
try
{
result = ParseMany(s);
return true;
}
catch
{
return false;
}
}
/// <summary>
/// not the best, but it will parse brackets when they are right
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
private static IEnumerable<Bracket> ParseAsIE(string s)
{
Regex bracketRegex = new Regex(@"^\(+[0-9\-\(\)]+\)+$");
Regex invalidBracket = new Regex(@"[0-9]+\(");
if (!bracketRegex.IsMatch(s))
throw new InvalidOperationException();
if (s.Where(c => c == '(').Count(c => true) != s.Where(c => c == ')').Count(c => true))
throw new InvalidOperationException();
if (invalidBracket.IsMatch(s))
throw new InvalidOperationException("brackets with inner brackets cannot have values");
int bracketCount = 0;
int loc = 0;
string parseString = "";
int startingpos = 0;
foreach (var c in s)
{
if (c == '(')
bracketCount++;
else if (c == ')')
bracketCount--;
if (loc != startingpos && bracketCount != 0)
parseString += c;
loc++;
if (bracketCount == 0)
{
if (parseString == "")
throw new Exception("brackets must not be empty");
var b = new Bracket();
int v = 0;
bool suc = int.TryParse(parseString, out v); //TO DO TO DO
if (suc)
{
if (b.value == null)
b.value = v;
else
throw new Exception("cannot value twice");
//b.inside.Add(new Bracket(v));
}
else
{
b.inside = ParseAsIE(parseString).ToList();
}
yield return b;
startingpos = ++loc;
parseString = "";
}
}
}
/// <summary>
/// not the best, but it will parse brackets when they are right
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static Bracket Parse(string s)
{
Regex bracketRegex = new Regex(@"^\(+[0-9\(\)]+\)+$");
Regex invalidBracket = new Regex(@"[0-9]+\(");
if (!bracketRegex.IsMatch(s))
throw new InvalidOperationException();
if (s.Where(c => c == '(').Count(c => true) != s.Where(c => c == ')').Count(c => true))
throw new InvalidOperationException();
if (invalidBracket.IsMatch(s))
throw new InvalidOperationException("brackets with inner brackets cannot have values");
Bracket b = new Bracket();
int bracketCount = 0;
int loc = 0;
string parseString = "";
int startingpos = 0;
foreach (var c in s)
{
if (c == '(')
bracketCount++;
else if (c == ')')
bracketCount--;
if (loc != startingpos && bracketCount != 0)
parseString += c;
loc++;
if (bracketCount == 0)
{
if (parseString == "")
throw new Exception("brackets must not be empty");
int v = 0;
bool suc = int.TryParse(parseString, out v); //TO DO TO DO
if (suc)
{
if (b.value == null)
b.value = v;
else
throw new Exception("A bracket cannot have more then one value");
//b.inside.Add(new Bracket(v));
}
else
b.inside.InsertRange(b.inside.Count, ParseAsIE(parseString));
startingpos = ++loc;
parseString = "";
}
}
return b;
}