public static Action ParseActionSequence(string actionsSequence)
{
// ReSharper disable once RedundantAssignment
Action action = null;
action = ParseAtomicAction(actionsSequence);
if (action == null)
{
int firstOpeningBracePosition = actionsSequence.IndexOf("(");
int[] closingBracesPositions = BracketedConfigProcessor.AllIndexesOf(actionsSequence, ")");
if (firstOpeningBracePosition == -1 || closingBracesPositions.Length != 0)
{
if (closingBracesPositions.Length > 0)
{
for (int tryingClosingBraceIndex = 0; tryingClosingBraceIndex != closingBracesPositions.Length; tryingClosingBraceIndex++)
{
int possibleExpression1Start = firstOpeningBracePosition + 1;
int possibleAction1End = closingBracesPositions[tryingClosingBraceIndex];
int possibleExpression1Length = possibleAction1End - possibleExpression1Start;
Action action1 = null;
if (possibleExpression1Length > 0)
{
string possibleAction1Substring = actionsSequence.Substring(possibleExpression1Start, possibleExpression1Length);
action1 = ParseActionSequence(possibleAction1Substring);
}
if (action1 != null)
{
string restOfString = actionsSequence.Substring(possibleAction1End);
if (!Regex.IsMatch(restOfString, @"^\s*\)\s*$"))
{
if (Regex.IsMatch(restOfString, @"^\s*\)\s*(and|AND).+$"))
{
string possibleAction2Substring =
restOfString.Substring(restOfString.IndexOf("and") + "and".Length);
Action action2 = ParseActionSequence(possibleAction2Substring);
if (action2 != null)
{
action = new CombinedAction(new List <Action> {
action1
});
if (action2 is OneOf)
{
((CombinedAction)action).Actions.Add(action2);
}
else if (action2 is CombinedAction)
{
((CombinedAction)action).Actions.AddRange(((CombinedAction)action2).Actions);
}
else
{
((CombinedAction)action).Actions.Add(action2);
}
}
}
else if (Regex.IsMatch(restOfString, @"^\s*\)\s*(or|OR).+$"))
{
string possibleAction2Substring = restOfString.Substring(restOfString.IndexOf("or") + "or".Length);
Action action2 = ParseActionSequence(possibleAction2Substring);
if (action2 != null)
{
action = new OneOf(new List <Action> {
action1
});
if (action2 is OneOf action2AsOneOf)
{
((OneOf)action).Actions.AddRange(action2AsOneOf.Actions);
}
else
{
((OneOf)action).Actions.Add(action2);
}
}
}
}
else
{
action = action1;
}
if (action != null)
{
break;
}
}
}
}
}
}
return(action);
}
public static Action ParseActionSequence(string actionsSequence)
{
Action action = null;
try {
action = ParseAtomicAction(actionsSequence);
return(action);
}
catch {
int firstOpeningBracePosition = actionsSequence.IndexOf("(");
int[] closingBracesPositions =
BracketedConfigProcessor.AllIndexesOf(actionsSequence, ")");
if (firstOpeningBracePosition != -1 && closingBracesPositions.Length == 0)
{
throw new ActionParseException();
}
if (closingBracesPositions.Length > 0)
{
for (int tryingClosingBraceIndex = 0;
tryingClosingBraceIndex != closingBracesPositions.Length;
tryingClosingBraceIndex++)
{
try {
int possibleExpression1Start = firstOpeningBracePosition + 1;
int possibleAction1End =
closingBracesPositions[tryingClosingBraceIndex];
int possibleExpression1Length =
possibleAction1End - possibleExpression1Start;
string possibleAction1Substring =
actionsSequence.Substring(possibleExpression1Start,
possibleExpression1Length);
Action action1 = ParseActionSequence(possibleAction1Substring);
string restOfString = actionsSequence.Substring(possibleAction1End);
if (!Regex.IsMatch(restOfString, @"^\s*\)\s*$"))
{
if (Regex.IsMatch(restOfString, @"^\s*\)\s*(and|AND).+$"))
{
string possibleAction2Substring =
restOfString.Substring(
restOfString.IndexOf("and") + "and".Length);
Action action2 = ParseActionSequence(possibleAction2Substring);
if (action1 == null || action2 == null)
{
throw new ActionParseException();
}
action = new CombinedAction(
new List <Action> {
action1, action2
});
}
else if (Regex.IsMatch(restOfString, @"^\s*\)\s*(or|OR).+$"))
{
string possibleAction2Substring =
restOfString.Substring(
restOfString.IndexOf("or") + "or".Length);
Action action2 = ParseActionSequence(possibleAction2Substring);
if (action1 == null || action2 == null)
{
throw new ActionParseException();
}
action = new OneOf(new List <Action> {
action1, action2
});
}
else
{
throw new ActionParseException();
}
break;
}
else
{
action = action1;
}
break;
}
catch {
}
}
if (action == null)
{
throw new ActionParseException();
}
}
return(action);
}
}