/// <summary>
/// Appends the specified text.
/// </summary>
/// <param name="text">The text.</param>
public void Append(string text)
{
if (text != "")
{
var snippet = new TokenControlReplacerSnippet();
snippet.OriginalText = text;
ExtractTokens(snippet);
for (int i = 0; i < snippet.Tokens.Count; i++)
{
Token token = snippet.Tokens[i];
if (i == 0)
{
snippet.Controls.Controls.Add(new LiteralControl(text.Substring(0, token.Start)));
}
else
{
snippet.Controls.Controls.Add(
new LiteralControl(text.Substring(snippet.Tokens[i - 1].End,
token.Start - snippet.Tokens[i - 1].End)));
}
snippet.Controls.Controls.Add(new PlaceHolder {ID = token.Id});
}
snippet.Controls.Controls.Add(
new LiteralControl(text.Substring(snippet.Tokens[snippet.Tokens.Count - 1].End)));
Snippets.Add(snippet);
}
}
/// <summary>
/// Extracts the tokens.
/// </summary>
/// <param name="snippet">The snippet.</param>
/// <exception cref="System.ArgumentException"></exception>
private void ExtractTokens(TokenControlReplacerSnippet snippet)
{
int last = 0;
while (last < snippet.OriginalText.Length)
{
// Find next token position in snippet.Text:
int start = snippet.OriginalText.IndexOf(TokenOpen, last, StringComparison.InvariantCultureIgnoreCase);
if (start == -1)
return;
int end = snippet.OriginalText.IndexOf(TokenClose, start + TokenOpen.Length,
StringComparison.InvariantCultureIgnoreCase);
if (end == -1)
throw new ArgumentException(string.Format("Token is opened but not closed in text \"{0}\".",
snippet.OriginalText));
int eol = snippet.OriginalText.IndexOf('\n', start + TokenOpen.Length);
if (eol != -1 && eol < end)
{
last = eol + 1;
continue;
}
// Take the token from snippet.Text:
end += TokenClose.Length;
string token =
snippet.OriginalText.Substring(start, end - start).Replace(TokenOpen, "").Replace(TokenClose, "");
var objToken = new Token
{
Start = start,
End = end,
TokenName = token
};
if (token.Contains(":"))
{
string[] nameAndAttributes = token.Split(':');
objToken.TokenName = nameAndAttributes[0];
var xml = new XmlDocument();
string xmlText = @"<root " + nameAndAttributes[1] + " />";
xml.LoadXml(xmlText);
if (xml.DocumentElement.Attributes != null)
foreach (XmlAttribute attribute in xml.DocumentElement.Attributes)
{
objToken.Attributes.Add(attribute.Name, attribute.Value);
}
}
snippet.Tokens.Add(objToken);
last = end;
}
}