/// <summary>
/// Uses the <tt>Liquid::TemplateParser</tt> regexp to tokenize the passed source
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
internal static List <string> Tokenize(string source)
{
if (string.IsNullOrEmpty(source))
{
return(new List <string>());
}
// Trim leading whitespace.
source = MyRegex.Replace(source, string.Format(@"([ \t]+)?({0}|{1})-", Liquid.VariableStart, Liquid.TagStart), "$2");
// Trim trailing whitespace.
source = MyRegex.Replace(source, string.Format(@"-({0}|{1})(\n|\r\n|[ \t]+)?", Liquid.VariableEnd, Liquid.TagEnd), "$1");
List <string> tokens = Regex.Split(source, Liquid.TemplateParser).ToList();
// Trim any whitespace elements from the end of the array.
for (int i = tokens.Count - 1; i > 0; --i)
{
if (tokens[i] == string.Empty)
{
tokens.RemoveAt(i);
}
}
// Removes the rogue empty element at the beginning of the array
if (tokens[0] != null && tokens[0] == string.Empty)
{
tokens.Shift();
}
return(tokens);
}
/// <summary>
/// Remove all newlines from the string
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static string StripNewlines(string input)
{
return(input.IsNullOrWhiteSpace()
? input
: MyRegex.Replace(input, @"(\r?\n)", String.Empty));
//: Regex.Replace(input, Environment.NewLine, string.Empty);
}
/// <summary>
/// Replace occurrences of a string with another
/// </summary>
/// <param name="input"></param>
/// <param name="string"></param>
/// <param name="replacement"></param>
/// <returns></returns>
public static string Replace(string input, string @string, string replacement = "")
{
if (string.IsNullOrEmpty(input) || string.IsNullOrEmpty(@string))
{
return(input);
}
return(string.IsNullOrEmpty(input)
? input
: MyRegex.Replace(input, @string, replacement));
}
/// <summary>
/// Add <br /> tags in front of all newlines in input string
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static string NewlineToBr(string input)
{
return(input.IsNullOrWhiteSpace()
? input
: MyRegex.Replace(input, @"(\r?\n)", "<br />$1"));
}
public static string StripHtml(string input)
{
return(input.IsNullOrWhiteSpace()
? input
: MyRegex.Replace(input, @"<.*?>", string.Empty));
}