private async System.Threading.Tasks.Task FillRichTextBox(string text)
{
var start = 0;
var regex = new Regex("(\\$[^\\$]+?\\$)|(\\$\\$[^\\$]+?\\$\\$)");
var paragraph = new Paragraph();
foreach (Match match in regex.Matches(text))
{
var matchVal = match.Value;
var notInline = matchVal.StartsWith("$$");
var imageId = notInline
? match.Value.Substring(3, match.Value.Length - 6)
: match.Value.Substring(2, match.Value.Length - 4);
paragraph.AddText(start, match.Index, text);
if (notInline)
{
MathQuestionBox.Blocks.Add(paragraph);
var imgParagraph = new Paragraph();
await imgParagraph.ReplaceLabelWithLargeImage(imageId);
MathQuestionBox.Blocks.Add(imgParagraph);
paragraph = new Paragraph();
}
else
{
await paragraph.ReplaceLabelWithImage(imageId);
}
start = match.Index + match.Length;
}
paragraph.AddText(start, text.Length, text);
//App.ViewModel.Blocks.Add(paragraph);
MathQuestionBox.Blocks.Add(paragraph);
}
