private string ApplyReplacements(string text)
{
MatchCollection matches = regexReplacement.Matches(text);
var blocksList = new List<TextBlock>(matches.Count);
foreach (Match match in matches)
{
string tag = ignoreCase ? match.Groups["tag"].Value.ToUpper() : match.Groups["tag"].Value;
string result;
if (!replacements.TryGetValue(tag, out result))
{
throw new InvalidOperationException("Trying to replace an unknown tag named '" +
tag + "', please check your tag dictionary!");
}
var block = new TextBlock
{
Start = match.Index,
End = match.Index + match.Length - 1,
Text = result,
};
blocksList.Add(block);
}
return UpdateBlocks(text, blocksList);
}
private string ApplyConditions(string text)
{
MatchCollection matches = regexIf.Matches(text);
var blocksList = new List<TextBlock>(matches.Count);
foreach (Match match in matches)
{
string condition = match.Groups["condition"].Value;
var block = new TextBlock
{
Start = match.Index,
End = match.Index + match.Length - 1,
};
if (evaluator.Evaluate(condition))
{
block.Text = match.Groups["text"].Value;
}
blocksList.Add(block);
}
return UpdateBlocks(text, blocksList);
}
