Regex error c#?

Answer 1

I think you're mixing up .NET's regex syntax with PHP's. PHP requires you to use a regex delimiter in addition to the quotes that are required by the C# string literal. For instance, if you want to match "foo" case-insensitively in PHP you would use something like this:

'/foo/i'

...but C# doesn't require the extra regex delimiters, which means it doesn't support the /i style for adding match modifiers (that would have been redundant anyway, since you're also using the RegexOptions.IgnoreCase flag). I think this is what you're looking for:

@"show_name=(.*?)&amp;show_name_exact=true"">(.*?)<"

Note also how I escaped the internal quotation mark using another quotation mark instead of a backslash. You have to do it that way whether you use the old-fashioned string literal syntax or C#'s verbatim strings with the leading '@' (which is highly recommended for writing regexes). That's why you were getting the unterminated string error.