CODEWITHSUNDEEP
c#regexstringstring-matchingsubstring
Evolving Techie
Evolving Techie

Reputation: 159

Ignoring ' (apostrophe) from RegEx

I've a RegEx and would like to ignore any ' (apostrophe) within the string. RegEx discussion can be found within the discussion String manipulation: How to replace a string with a specific pattern

RegEx: \\(\\s*'(?<text>[^'']*)'\\s*,\\s*(?<pname>[\\w\\[\\]]+)\\s*\\)

Basically the provided RegEx doesn't work in a scenario where the {text} contains ' (apostrophe). Can you please have the RegEx to ignore any apostroph'e within the {text}? 

For eg: 

substringof('B's',Name) should be replaced by Name.Contains("B's") 
substringof('B'',Name) should be replaced by Name.Contains("B'")
substringof('''',Name) should be replaced by Name.Contains("'")

Appreciate it!! Thank you.

Upvotes: 0

Views: 1113

Answers (1)

Casimir et Hippolyte
Casimir et Hippolyte

Reputation: 89557

It seems to be difficult to deal with the case ''''. It's the reason why I choose to use delegate and an another replace to solve the issue.

static void Main(string[] args)
{
    var subjects = new string[] {"substringof('xxxx',Name)", "substringof('B's',Name)", "substringof('B'',Name)", "substringof('''',Name)"};

    Regex reg = new Regex(@"substringof\('(.+?)'\s*,\s*([\w\[\]]+)\)");
    foreach (string subject in subjects) {
        string result = reg.Replace(subject, delegate(Match m) { return m.Groups[2].Value + ".Contains(\"" + m.Groups[1].Value.Replace("''", "'") + "\")"; });
        Console.WriteLine(result);
    }
}

Upvotes: 1

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