public ConditionLists(ConditionEntry ce)
{
Condition c = new Condition();
c.Add(ce);
Add(c);
}
public string ToString(bool includeaction = false, bool multi = false) // multi means quoting needed for ) as well as comma space
{
string ret = "";
if (includeaction)
{
ret += eventname.QuoteString(comma: true) + ", " + action.QuoteString(comma: true) + ", " + actiondata.QuoteString(comma: true) + ", ";
}
for (int i = 0; fields != null && i < fields.Count; i++)
{
if (i > 0)
{
ret += " " + innercondition.ToString() + " ";
}
if (ConditionEntry.IsNullOperation(fields[i].matchtype))
{
ret += "Condition " + ConditionEntry.OperatorNames[(int)fields[i].matchtype];
}
else
{
ret += (fields[i].itemname).QuoteString(bracket: multi) + // commas do not need quoting as conditions at written as if always at EOL.
" " + ConditionEntry.OperatorNames[(int)fields[i].matchtype];
if (!ConditionEntry.IsUnaryOperation(fields[i].matchtype))
{
ret += " " + fields[i].matchstring.QuoteString(bracket: multi); // commas do not need quoting..
}
}
}
return(ret);
}
public Condition(ConditionEntry ce)
{
Fields = new List <ConditionEntry>()
{
ce
};
}
public void Set(ConditionEntry f)
{
Fields = new List <ConditionEntry>()
{
f
};
}
public void Add(ConditionEntry f)
{
if (Fields == null)
{
Fields = new List <ConditionEntry>();
}
Fields.Add(f);
}
// list into CV the variables needed for the condition entry list
public void IndicateValuesNeeded(ref Variables vr)
{
foreach (ConditionEntry fd in fields)
{
if (!ConditionEntry.IsNullOperation(fd.matchtype) && !fd.itemname.Contains("%")) // nulls need no data.. nor does anything with expand in
{
vr[fd.itemname] = null;
}
}
}
public string ToString(bool includeaction = false, bool multi = false) // multi means quoting needed for ) as well as comma space
{
string ret = "";
if (includeaction)
{
ret += EventName.QuoteString(comma: true) + ", " + Action.QuoteString(comma: true) + ", ";
if (ActionVars.Count == 0)
{
ret += "\"\", ";
}
else
{
string v = ActionVars.ToString();
if (v.Contains("\"") || v.Contains(","))
{
ret += "\"" + v.Replace("\"", "\\\"") + "\", "; // verified 12/06/2020
}
else
{
ret += v + ", ";
}
}
}
for (int i = 0; Fields != null && i < Fields.Count; i++)
{
if (i > 0)
{
ret += " " + InnerCondition.ToString() + " ";
}
if (ConditionEntry.IsNullOperation(Fields[i].MatchCondition))
{
ret += "Condition " + ConditionEntry.OperatorNames[(int)Fields[i].MatchCondition];
}
else
{
ret += (Fields[i].ItemName).QuoteString(bracket: multi) + // commas do not need quoting as conditions at written as if always at EOL.
" " + ConditionEntry.OperatorNames[(int)Fields[i].MatchCondition];
if (!ConditionEntry.IsUnaryOperation(Fields[i].MatchCondition))
{
ret += " " + Fields[i].MatchString.QuoteString(bracket: multi); // commas do not need quoting..
}
}
}
return(ret);
}
public string Read(string line) // decode a set of multi conditions (<cond> Or <cond>) Outer (<cond> And <cond>) etc
{
StringParser sp = new StringParser(line);
bool multi = false;
string delimchars = " ";
if (sp.IsCharMoveOn('('))
{
multi = true;
delimchars = ") ";
}
List <Condition> cllist = new List <Condition>();
ConditionEntry.LogicalCondition outercond = ConditionEntry.LogicalCondition.Or; // first outer condition is ignored in a list. Or is the default.
while (true)
{
Condition c = new Condition();
string err = c.Read(sp, delimchars: delimchars);
if (err.Length > 0)
{
return(err);
}
c.outercondition = outercond;
cllist.Add(c); // add..
if (sp.IsCharMoveOn(')')) // if closing bracket..
{
if (!multi)
{
return("Closing condition bracket found but no opening bracket present");
}
if (sp.IsEOL) // EOL, end of (cond..cond) outercond ( cond cond)
{
conditionlist = cllist;
return(null);
}
else
{
err = ConditionEntry.GetLogicalCondition(sp, delimchars, out outercond);
if (err.Length > 0)
{
return(err + " for outer condition");
}
if (!sp.IsCharMoveOn('(')) // must have another (
{
return("Missing opening bracket in multiple condition list after " + outercond.ToString());
}
}
}
else if (sp.IsEOL) // last condition
{
if (multi)
{
return("Missing closing braket in multiple condition list");
}
conditionlist = cllist;
return(null);
}
else
{
return("Extra characters beyond expression");
}
}
}
// if includeevent is set, it must be there..
// demlimchars is normally space, but can be ") " if its inside a multi.
public string Read(BaseUtils.StringParser sp, bool includeevent = false, string delimchars = " ")
{
Fields = new List <ConditionEntry>();
InnerCondition = OuterCondition = LogicalCondition.Or;
EventName = ""; Action = "";
ActionVars = new Variables();
if (includeevent)
{
string actionvarsstr;
if ((EventName = sp.NextQuotedWord(", ")) == null || !sp.IsCharMoveOn(',') ||
(Action = sp.NextQuotedWord(", ")) == null || !sp.IsCharMoveOn(',') ||
(actionvarsstr = sp.NextQuotedWord(", ")) == null || !sp.IsCharMoveOn(','))
{
return("Incorrect format of EVENT data associated with condition");
}
if (actionvarsstr.HasChars())
{
ActionVars = new Variables(actionvarsstr, Variables.FromMode.MultiEntryComma);
}
}
LogicalCondition?ic = null;
while (true)
{
string var = sp.NextQuotedWord(delimchars); // always has para cond
if (var == null)
{
return("Missing parameter (left side) of condition");
}
string cond = sp.NextQuotedWord(delimchars);
if (cond == null)
{
return("Missing condition operator");
}
ConditionEntry.MatchType mt;
if (!ConditionEntry.MatchTypeFromString(cond, out mt))
{
return("Condition operator " + cond + " is not recognised");
}
string value = "";
if (ConditionEntry.IsNullOperation(mt)) // null operators (Always..)
{
if (!var.Equals("Condition", StringComparison.InvariantCultureIgnoreCase))
{
return("Condition must preceed fixed result operator");
}
var = "Condition"; // fix case..
}
else if (!ConditionEntry.IsUnaryOperation(mt)) // not unary, require right side
{
value = sp.NextQuotedWord(delimchars);
if (value == null)
{
return("Missing value part (right side) of condition");
}
}
ConditionEntry ce = new ConditionEntry()
{
ItemName = var, MatchCondition = mt, MatchString = value
};
Fields.Add(ce);
if (sp.IsEOL || sp.PeekChar() == ')') // end is either ) or EOL
{
InnerCondition = (ic == null) ? LogicalCondition.Or : ic.Value;
return("");
}
else
{
LogicalCondition nic;
string err = GetLogicalCondition(sp, delimchars, out nic);
if (err.Length > 0)
{
return(err + " for inner condition");
}
if (ic == null)
{
ic = nic;
}
else if (ic.Value != nic)
{
return("Cannot specify different inner conditions between expressions");
}
}
}
}
public ConditionEntry(ConditionEntry other)
{
ItemName = other.ItemName;
MatchCondition = other.MatchCondition;
MatchString = other.MatchString;
}
public ConditionEntry(ConditionEntry other)
{
itemname = other.itemname;
matchtype = other.matchtype;
matchstring = other.matchstring;
}
public string Read(BaseUtils.StringParser sp, bool includeevent = false, string delimchars = " ") // if includeevent is set, it must be there..
{ // demlimchars is normally space, but can be ") " if its inside a multi.
fields = new List <ConditionEntry>();
innercondition = outercondition = ConditionEntry.LogicalCondition.Or;
eventname = ""; action = ""; actiondata = "";
if (includeevent)
{
if ((eventname = sp.NextQuotedWord(", ")) == null || !sp.IsCharMoveOn(',') ||
(action = sp.NextQuotedWord(", ")) == null || !sp.IsCharMoveOn(',') ||
(actiondata = sp.NextQuotedWord(", ")) == null || !sp.IsCharMoveOn(','))
{
return("Incorrect format of EVENT data associated with condition");
}
}
ConditionEntry.LogicalCondition?ic = null;
while (true)
{
string var = sp.NextQuotedWord(delimchars); // always has para cond
if (var == null)
{
return("Missing parameter (left side) of condition");
}
string cond = sp.NextQuotedWord(delimchars);
if (cond == null)
{
return("Missing condition operator");
}
ConditionEntry.MatchType mt;
if (!ConditionEntry.MatchTypeFromString(cond, out mt))
{
return("Condition operator " + cond + " is not recognised");
}
string value = "";
if (ConditionEntry.IsNullOperation(mt)) // null operators (Always..)
{
if (!var.Equals("Condition", StringComparison.InvariantCultureIgnoreCase))
{
return("Condition must preceed fixed result operator");
}
var = "Condition"; // fix case..
}
else if (!ConditionEntry.IsUnaryOperation(mt)) // not unary, require right side
{
value = sp.NextQuotedWord(delimchars);
if (value == null)
{
return("Missing value part (right side) of condition");
}
}
ConditionEntry ce = new ConditionEntry()
{
itemname = var, matchtype = mt, matchstring = value
};
fields.Add(ce);
if (sp.IsEOL || sp.PeekChar() == ')') // end is either ) or EOL
{
innercondition = (ic == null) ? ConditionEntry.LogicalCondition.Or : ic.Value;
return("");
}
else
{
ConditionEntry.LogicalCondition nic;
string err = ConditionEntry.GetLogicalCondition(sp, delimchars, out nic);
if (err.Length > 0)
{
return(err + " for inner condition");
}
if (ic == null)
{
ic = nic;
}
else if (ic.Value != nic)
{
return("Cannot specify different inner conditions between expressions");
}
}
}
}
// Check condition list fel, using the outercondition on each to combine the results.
// Use the eval engine to assemble arguments. Keep arguments as original types (long,double,strings)
// values are the set of values to use for variable lookups
// pass back errlist, errclass
// optionally pass back test executed in order
// shortcircuit on outer AND condition
// obeys disabled
static public bool?CheckConditionsEval(List <Condition> fel, Variables values,
List <ConditionEntry> tests = null, List <string> testerrors = null,
bool debugit = false)
{
Eval evl = new Eval(true, true, true, true, true); // check end, allow fp, allow strings, allow members, allow arrays
evl.ReturnFunctionValue = BaseFunctionsForEval.BaseFunctions; // allow functions
evl.ReturnSymbolValue += (str) => // on symbol lookup
{
string qualname = values.Qualify(str);
if (values.Exists(qualname)) // if we have a variable
{
string text = values[qualname];
if (double.TryParse(text, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, out double d))
{
if (long.TryParse(text, System.Globalization.NumberStyles.Integer, System.Globalization.CultureInfo.InvariantCulture, out long v)) // if its a number, return number
{
return(v);
}
else
{
return(d);
}
}
else
{
return(text); // else its a string
}
}
else
{
return(new StringParser.ConvertError("Unknown symbol " + qualname));
}
};
bool?outerres = null;
for (int oc = 0; oc < fel.Count; oc++)
{
Condition cond = fel[oc];
if (cond.Disabled) // disabled means that its ignored
{
continue;
}
bool?innerres = null;
foreach (ConditionEntry ce in cond.Fields)
{
bool matched = false;
if (debugit)
{
System.Diagnostics.Debug.WriteLine($"CE `{ce.ItemName}` {ce.MatchCondition} `{ce.MatchString}`");
}
tests?.Add(ce);
testerrors?.Add(null);
// these require no left or right
if (ce.MatchCondition == ConditionEntry.MatchType.AlwaysTrue || ce.MatchCondition == ConditionEntry.MatchType.AlwaysFalse)
{
if (ce.ItemName.Length == 0 || ce.ItemName.Equals("Condition", StringComparison.InvariantCultureIgnoreCase)) // empty (legacy) or Condition
{
if (ce.MatchCondition == ConditionEntry.MatchType.AlwaysTrue)
{
matched = true; // matched, else if false, leave as false.
}
}
else
{
testerrors[testerrors.Count - 1] = "AlwaysFalse/True does not have on the left side the word 'Condition'";
innerres = false;
break;
}
}
else
{
// variable names
if (ce.MatchCondition == ConditionEntry.MatchType.IsPresent)
{
string name = values.Qualify(ce.ItemName); // its a straight variable name, allow any special formatting
if (values.Exists(name) && values[name] != null)
{
matched = true;
}
}
else if (ce.MatchCondition == ConditionEntry.MatchType.IsNotPresent)
{
string name = values.Qualify(ce.ItemName); // its a straight variable name, allow any special formatting
if (!values.Exists(name) || values[name] == null)
{
matched = true;
}
}
else
{
Object leftside;
if (values.Contains(ce.ItemName))
{
string text = values[ce.ItemName];
if (double.TryParse(text, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, out double d)) // if a double..
{
if (long.TryParse(text, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, out long v)) // if its a number, return number
{
leftside = v;
}
else
{
leftside = d;
}
}
else
{
leftside = text; // else its a string
}
}
else
{
leftside = evl.EvaluateQuickCheck(ce.ItemName); // evaluate left side
if (evl.InError)
{
if (debugit)
{
System.Diagnostics.Debug.WriteLine($" .. Left side in error ${((StringParser.ConvertError)leftside).ErrorValue}");
}
testerrors[testerrors.Count - 1] = "Left side did not evaluate: " + ce.ItemName;
leftside = null; // indicate condition has failed
}
}
string lstring = leftside as string; // used below
var clf = ConditionEntry.Classify(ce.MatchCondition);
bool stringordate = clf == ConditionEntry.Classification.String || clf == ConditionEntry.Classification.Date;
if (leftside != null) // if we have a leftside, check it for stringness
{
if (stringordate)
{
if (lstring == null)
{
if (debugit)
{
System.Diagnostics.Debug.WriteLine(" .. Left side not string");
}
testerrors[testerrors.Count - 1] = "Left side is not a string: " + ce.ItemName;
leftside = null; // indicate condition has failed
}
}
else if (!(leftside is double || leftside is long)) // must be long or double
{
if (debugit)
{
System.Diagnostics.Debug.WriteLine(" .. Left side not number");
}
testerrors[testerrors.Count - 1] = "Left side is not a number: " + ce.ItemName;
leftside = null; // indicate condition has failed
}
}
if (leftside != null) // we have a good left side
{
// System.Diagnostics.Debug.WriteLine($".. left side {leftside}");
if (ce.MatchCondition == ConditionEntry.MatchType.IsEmpty)
{
matched = lstring.Length == 0;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.IsNotEmpty)
{
matched = lstring.Length > 0;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.IsTrue || ce.MatchCondition == ConditionEntry.MatchType.IsFalse)
{
if (leftside is long) // we already checked about that leftside is double or long
{
matched = (ce.MatchCondition == ConditionEntry.MatchType.IsTrue) ? ((long)leftside != 0) : ((long)leftside == 0);
}
else
{
matched = (ce.MatchCondition == ConditionEntry.MatchType.IsTrue) ? ((double)leftside != 0) : ((double)leftside == 0);
}
}
else
{
// require a right side
Object rightside = evl.EvaluateQuickCheck(ce.MatchString);
if (evl.InError)
{
if (stringordate) // if in error, and we are doing string date comparisions, allow bare on right
{
rightside = ce.MatchString;
}
else
{
testerrors[testerrors.Count - 1] = "Right side did not evaluate: " + ce.MatchString;
rightside = null; // indicate bad right side
}
}
string rstring = rightside as string;
if (rightside != null) // if good right side
{
if (stringordate)
{
if (rstring == null) // must have a string
{
testerrors[testerrors.Count - 1] = "Right side is not a string: " + ce.ItemName;
innerres = false;
rightside = null;
}
}
else if (!(rightside is double || rightside is long))
{
testerrors[testerrors.Count - 1] = "Right side is not a number: " + ce.ItemName;
innerres = false;
rightside = null;
}
}
if (debugit)
{
System.Diagnostics.Debug.WriteLine($" .. `{leftside}` {ce.MatchCondition} `{rightside}`");
}
if (rightside != null)
{
if (ce.MatchCondition == ConditionEntry.MatchType.DateBefore || ce.MatchCondition == ConditionEntry.MatchType.DateAfter)
{
DateTime tmevalue, tmecontent;
if (!DateTime.TryParse(lstring, System.Globalization.CultureInfo.CreateSpecificCulture("en-US"), System.Globalization.DateTimeStyles.None, out tmevalue))
{
testerrors[testerrors.Count - 1] = "Date time not in correct format on left side: " + leftside;
innerres = false;
break;
}
else if (!DateTime.TryParse(rstring, System.Globalization.CultureInfo.CreateSpecificCulture("en-US"), System.Globalization.DateTimeStyles.None, out tmecontent))
{
testerrors[testerrors.Count - 1] = "Date time not in correct format on right side: " + rightside;
innerres = false;
break;
}
else
{
if (ce.MatchCondition == ConditionEntry.MatchType.DateBefore)
{
matched = tmevalue.CompareTo(tmecontent) < 0;
}
else
{
matched = tmevalue.CompareTo(tmecontent) >= 0;
}
}
}
else if (ce.MatchCondition == ConditionEntry.MatchType.Equals)
{
matched = lstring.Equals(rstring, StringComparison.InvariantCultureIgnoreCase);
}
else if (ce.MatchCondition == ConditionEntry.MatchType.EqualsCaseSensitive)
{
matched = lstring.Equals(rstring);
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NotEqual)
{
matched = !lstring.Equals(rstring, StringComparison.InvariantCultureIgnoreCase);
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NotEqualCaseSensitive)
{
matched = !lstring.Equals(rstring);
}
else if (ce.MatchCondition == ConditionEntry.MatchType.Contains)
{
matched = lstring.IndexOf(rstring, StringComparison.InvariantCultureIgnoreCase) >= 0;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.ContainsCaseSensitive)
{
matched = lstring.Contains(rstring);
}
else if (ce.MatchCondition == ConditionEntry.MatchType.DoesNotContain)
{
matched = lstring.IndexOf(rstring, StringComparison.InvariantCultureIgnoreCase) < 0;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.DoesNotContainCaseSensitive)
{
matched = !lstring.Contains(rstring);
}
else if (ce.MatchCondition == ConditionEntry.MatchType.IsOneOf)
{
StringParser p = new StringParser(rstring);
List <string> ret = p.NextQuotedWordList();
if (ret == null)
{
testerrors[testerrors.Count - 1] = "IsOneOf value list is not in a optionally quoted comma separated form";
innerres = false;
break; // stop the loop, its a false
}
else
{
matched = ret.Contains(lstring, StringComparer.InvariantCultureIgnoreCase);
}
}
else if (ce.MatchCondition == ConditionEntry.MatchType.MatchSemicolon)
{
string[] list = rstring.Split(';').Select(x => x.Trim()).ToArray(); // split and trim
matched = list.Contains(lstring.Trim(), StringComparer.InvariantCultureIgnoreCase); // compare, trimmed, case insensitive
}
else if (ce.MatchCondition == ConditionEntry.MatchType.MatchCommaList)
{
StringCombinations sc = new StringCombinations(',');
sc.ParseString(rstring); // parse, give all combinations
matched = sc.Permutations.Contains(lstring.Trim(), StringComparer.InvariantCultureIgnoreCase); // compare, trimmed, case insensitive
}
else if (ce.MatchCondition == ConditionEntry.MatchType.MatchSemicolonList)
{
StringCombinations sc = new StringCombinations(';');
sc.ParseString(rstring); // parse, give all combinations
matched = sc.Permutations.Contains(lstring.Trim(), StringComparer.InvariantCultureIgnoreCase); // compare, trimmed, case insensitive
}
else if (ce.MatchCondition == ConditionEntry.MatchType.AnyOfAny)
{
StringParser l = new StringParser(lstring);
List <string> ll = l.NextQuotedWordList();
StringParser r = new StringParser(rstring);
List <string> rl = r.NextQuotedWordList();
if (ll == null || rl == null)
{
testerrors[testerrors.Count - 1] = "AnyOfAny value list is not in a optionally quoted comma separated form on both sides";
innerres = false;
break; // stop the loop, its a false
}
else
{
foreach (string s in ll) // for all left strings
{
if (rl.Contains(s, StringComparer.InvariantCultureIgnoreCase)) // if right has it..
{
matched = true; // matched and break
break;
}
}
}
}
else
{
if (leftside is double || rightside is double)
{
double lnum = leftside is long?(double)(long)leftside : (double)leftside;
double rnum = rightside is long?(double)(long)rightside : (double)rightside;
if (ce.MatchCondition == ConditionEntry.MatchType.NumericEquals)
{
matched = lnum.ApproxEquals(rnum);
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericNotEquals)
{
matched = !lnum.ApproxEquals(rnum);
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericGreater)
{
matched = lnum > rnum;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericGreaterEqual)
{
matched = lnum >= rnum;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericLessThan)
{
matched = lnum < rnum;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericLessThanEqual)
{
matched = lnum <= rnum;
}
}
else
{
long lnum = (long)leftside;
long rnum = (long)rightside;
if (ce.MatchCondition == ConditionEntry.MatchType.NumericEquals)
{
matched = lnum == rnum;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericNotEquals)
{
matched = lnum != rnum;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericGreater)
{
matched = lnum > rnum;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericGreaterEqual)
{
matched = lnum >= rnum;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericLessThan)
{
matched = lnum < rnum;
}
else if (ce.MatchCondition == ConditionEntry.MatchType.NumericLessThanEqual)
{
matched = lnum <= rnum;
}
}
}
}
}
}
}
}
if (debugit)
{
System.Diagnostics.Debug.WriteLine($" .. match result {matched}");
}
// System.Diagnostics.Debug.WriteLine(fe.eventname + ":Compare " + f.matchtype + " '" + f.contentmatch + "' with '" + vr.value + "' res " + matched + " IC " + fe.innercondition);
if (cond.InnerCondition == Condition.LogicalCondition.And) // Short cut, if AND, all must pass, and it did not
{
if (!matched)
{
innerres = false;
break;
}
}
else if (cond.InnerCondition == Condition.LogicalCondition.Nand) // Short cut, if NAND, and not matched
{
if (!matched)
{
innerres = true; // positive non match - NAND produces a true
break;
}
}
else if (cond.InnerCondition == Condition.LogicalCondition.Or) // Short cut, if OR, and matched
{
if (matched)
{
innerres = true;
break;
}
}
else
{ // short cut, if NOR, and matched, its false
if (matched)
{
innerres = false;
break;
}
}
} // end of inner condition list look
// System.Diagnostics.Debug.WriteLine($"Condition list {innerres} {errlist}");
if (!innerres.HasValue) // if does not have a value
{
if (cond.InnerCondition == Condition.LogicalCondition.And) // none did not matched producing a false, so therefore AND is true
{
innerres = true;
}
else if (cond.InnerCondition == Condition.LogicalCondition.Or) // none did matched producing a true, so therefore OR must be false
{
innerres = false;
}
else if (cond.InnerCondition == Condition.LogicalCondition.Nor) // none did matched producing a false, so therefore NOR must be true
{
innerres = true;
}
else // NAND none did matched producing a true, so therefore NAND must be false
{
innerres = false;
}
}
if (!outerres.HasValue) // if first time, its just the value
{
outerres = innerres.Value;
if (oc < fel.Count - 1) // check short circuits on NEXT ONE! if we have a next one..
{
// if NEXT outer condition is an OR, and we are true
// if NEXT outer condition is an AND, and we are false
if ((fel[oc + 1].OuterCondition == Condition.LogicalCondition.Or && outerres == true) ||
(fel[oc + 1].OuterCondition == Condition.LogicalCondition.And && outerres == false))
{
// System.Diagnostics.Debug.WriteLine("Short circuit on {0} cur {1}", fel[oc + 1].OuterCondition, outerres);
break;
}
}
}
else if (cond.OuterCondition == Condition.LogicalCondition.Or)
{
outerres |= innerres.Value;
if (outerres.Value == true) // no point continuing, first one true wins
{
//System.Diagnostics.Debug.WriteLine("Short circuit second on {0} cur {1}", fe.OuterCondition, outerres);
break;
}
}
else if (cond.OuterCondition == Condition.LogicalCondition.And)
{
outerres &= innerres.Value;
if (outerres.Value == false) // no point continuing, first one false wins
{
//System.Diagnostics.Debug.WriteLine("Short circuit second on {0} cur {1}", fe.OuterCondition, outerres);
break;
}
}
else if (cond.OuterCondition == Condition.LogicalCondition.Nor)
{
outerres = !(outerres | innerres.Value);
}
else if (cond.OuterCondition == Condition.LogicalCondition.Nand)
{
outerres = !(outerres & innerres.Value);
}
else
{
System.Diagnostics.Debug.Assert(false, "Bad outer condition");
}
}
return(outerres);
}