public virtual string Expand(IList<string> parms, IList<string> vals, ArticleDto activeArticle, IList<ArticleDto> allArticles)
{
IDictionary<string, string> vars = prepareVariables(parms, vals, activeArticle);
Regex replaceRegex = new Regex(@"%([^\)%]+)%");
string expandedText = macroText;
MatchCollection matches = replaceRegex.Matches(expandedText);
Match[] matchArr = new Match[matches.Count];
matches.CopyTo(matchArr, 0);
IEnumerable<Match> sortedMatches = (IEnumerable<Match>)matchArr.OrderByDescending(x => x.Index);
foreach (Match match in sortedMatches)
{
string preText = expandedText.Substring(0, match.Index);
string postText = expandedText.Substring(match.Index + match.Length);
string parmName = match.Groups[1].Value;
string value = "";
if (vars.ContainsKey(parmName)) value = vars[parmName];
expandedText = preText + value + postText;
}
return expandedText;
}
