using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"#What_I_want_to_avoid: escaped elemets (odd no. of escape characters)
(?:[^\\]\\(?:\\\\)+|[^\\]\\)\${[^{}]*}
|
#What_I_want_to_match: unescaped element (or even no. of escape characters)
[^\\](?:\\\\)*(\${[^{}]*})";
string input = @"This${ is }a clear${ and simple} example ${string}, where {${only}} only the \${highlighted} parts should be selected allowing escaping and \\${unescaping} multiple times: \\\${not}, \\\\${in}";
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