I'm reading a comma-delimited list of strings from a config file. I need to check whether another string is in that list. For example:
"apple,banana,cheese"
If I check for "apple" I should find it, but if I check for "app" I should not.
What's the most straight-forward and concise way to do this? It doesn't have to be fast.
(I'll add my solution as an answer, but I'm hoping someone has something better.)
Using linq:
listString.Split(',').Contains("apple")
W/o linq:
Array.IndexOf(listString.Split(','), "apple") >= 0
Regex probably doesn't count as "straight-forward", but this is what I've got:
Regex.IsMatch(listString, "(?<=,|^)" + testWord + "(?=,|$)")
Update: Per Eric's comment below, this should be:
Regex.IsMatch(listString, "(?<=,|^)" + Regex.Escape(testWord) + "(?=,|$)")
Another way might be to try using
bool contains = new List<string>("apple,banana,cheese".Split(',')).Contains("apple");
//or
bool b = "apple,banana,cheese".Split(',').Contains("apple");