using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"\{
\s* ([a-zA-Z_][a-zA-Z0-9_-]*) \s*
(?:
: \s* ([^{}]*(?:\{(?-1)\}[^{}]*)*)
)?
\}";
string input = @"{hello}
{hello:xxx}
{hello:xxx{yyy}}
{hello:xxx{yyy:zzz}aaa}
";
RegexOptions options = RegexOptions.Multiline | RegexOptions.IgnorePatternWhitespace;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx