private static (bool, string, string) IsMathsKeyword(ref XmlDocument lookup, string value)
{
(bool success, XmlNode group, XmlNode keyword)match = XmlManager.GetSecondLevelChild(value, ref lookup, matchInnerXml: true);
XmlNode firstChild = lookup.FirstChild;
if (match.success)
{
if (value == match.keyword.InnerXml)
{
if (match.group.Attributes["symbol"] == null)
{
throw new Exception($"XML lookup group missing symbol attribute at: {lookup.InnerXml}");
}
string symbol = "";
if (match.group.Attributes["loperand"] != null)
{
symbol += $"{match.group.Attributes["loperand"].Value} ";
}
symbol += match.group.Attributes["symbol"].Value;
if (match.keyword.Attributes["append"] != null)
{
symbol += match.keyword.Attributes["append"].Value;
}
symbol += $"_{match.group.Attributes["priority"].Value}";
symbol += $"_{match.group.Attributes["operandIdentifier"].Value}";
if (match.group.Attributes["roperand"] != null)
{
symbol += $" {match.group.Attributes["roperand"].Value}";
}
return(true, symbol, match.keyword.InnerXml);
}
}
return(false, null, null);
}
private static (double, WordGroups) GetMappedWordValue(string word)
{
(bool success, XmlNode group, XmlNode word)match = XmlManager.GetSecondLevelChild(word, ref map, "name");
WordGroups matchedGroup = WordGroups.UNMATCHED;
double matchedValue = 0;
if (match.success)
{
matchedGroup = (WordGroups)int.Parse(match.group.Attributes["name"].Value);
if (matchedGroup != WordGroups.CONNECTOR)
{
matchedValue = double.Parse(match.word.Attributes["value"].Value);
}
}
return(matchedValue, matchedGroup);
}
private static bool IsNumericalWord(string word)
{
return(XmlManager.GetSecondLevelChild(word, ref map, "name").Item1);
}