Question

I have a string that has bunch of text. I need to locate all values that are located between
‘site.com/PI/’ and ‘/500/item.jpg

Example:

String STRING = @"
http://site.com/PI/0/500/item.jpg
blah-blah
http://site.com/PI/1/500/item.jpg
blah-blah
http://site.com/PI/2/500/item.jpg
blah-blah
http://site.com/PI/4/500/item.jpg
blah-blah
http://site.com/PI/8/500/item.jpg
blah-blah
http://site.com/PI/6/500/item.jpg    blah-blah"

need to get list of { 0, 1, 2, 4, 8, 6 }

It is easy to get one occurence using regex:

Regex.Match(STRING, @"(?<=/PI/).*(?=/500/)").Value;

How can I get all occurencies into one list?

Answer 1

You can use LINQ.

List<string> matches = Regex.Matches(STRING, @"(?<=/PI/).*(?=/500/)")
                            .Cast<Match>()
                            .Select(m => m.Value)
                            .ToList();