using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?:^
(?:
\( [^)]* \)
|
\p{Lu}+ (?>[ ]\p{Lu}+\b)*
(?>/\p{Lu}+(?>[ ]\p{Lu}+ \b)* )*
)
[ ]
)?
[^/\n]*+ \K .";
string substitution = @" or ";
string input = @"Dogs/Cats/Mice
ANIMALS/SPECIES Dogs/Cats/Mice
(Animals/Species) Dogs/Cats/Mice
ANIMALS/SPECIES Dogs and Cats/Mice
BRITISH RECIPES/DESSERT pudding/rum baba/crumble
RECIPES/BRITISH DESSERT pudding/crumble";
RegexOptions options = RegexOptions.Multiline | RegexOptions.IgnorePatternWhitespace | RegexOptions.CultureInvariant;
Regex regex = new Regex(pattern, options);
string result = regex.Replace(input, substitution);
}
}
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