public static ArrayList ProcessHeaderFooterFormula(string formulaExpression)
{
if (formulaExpression == null)
{
return(null);
}
ArrayList arrayList = new ArrayList();
string text = null;
MatchCollection matchCollection = FormulaHandler.m_RegexAmpDetection.Matches(formulaExpression, 0);
if (matchCollection == null || matchCollection.Count == 0)
{
text = formulaExpression;
}
else
{
int num = 0;
string text2 = null;
string text3 = null;
for (int i = 0; i <= matchCollection.Count; i++)
{
text3 = ((i >= matchCollection.Count) ? formulaExpression.Substring(num, formulaExpression.Length - num) : formulaExpression.Substring(num, matchCollection[i].Index - num));
text3 = text3.Trim();
if (text3.Length > 0)
{
text = ((text != null) ? (text + "&" + text3) : text3);
}
if (i < matchCollection.Count)
{
text3 = formulaExpression.Substring(matchCollection[i].Index, matchCollection[i].Length);
num = matchCollection[i].Index + matchCollection[i].Length;
if (!(text3 == "&"))
{
text2 = text3.Trim();
int length = text2.Length;
if (length > 1 && text2[0] == '"' && text2[length - 1] == '"')
{
text2 = text2.Substring(1, length - 2);
}
if (text != null)
{
Match match = FormulaHandler.m_RegexGlobalOnly.Match(text);
if (match.Success)
{
GlobalExpressionType globalExpressionType = FormulaHandler.WordHeaderFooterFormula(match, text);
if (globalExpressionType == GlobalExpressionType.Unknown)
{
return(null);
}
arrayList.Add(globalExpressionType);
text = null;
goto IL_0174;
}
return(null);
}
goto IL_0174;
}
}
continue;
IL_0174:
arrayList.Add(text2);
}
}
if (text != null)
{
Match match2 = FormulaHandler.m_RegexGlobalOnly.Match(text);
if (match2.Success)
{
GlobalExpressionType globalExpressionType2 = FormulaHandler.WordHeaderFooterFormula(match2, text);
if (globalExpressionType2 == GlobalExpressionType.Unknown)
{
return(null);
}
arrayList.Add(globalExpressionType2);
goto IL_01cc;
}
return(null);
}
goto IL_01cc;
IL_01cc:
return(arrayList);
}
static FormulaHandler()
{
FormulaHandler.m_RegexGlobalOnly = null;
FormulaHandler.m_RegexAmpDetection = null;
FormulaHandler.InitRegularExpressions();
}
