Regex for multiple strings including spaces - regex

Question

I need a regex for filtering out a query. For example, I get a query input as below.
state:CA AND country:US OR postalcode:8888
Here, I need to extract terms based on " AND ", " OR " (any case). Can someone please provide the regex with which I can extract terms like "state:CA", "country:US" etc?
I want to consider the spaces before and after the AND, OR as the other terms might contain "and", "or" as part of string.
Eg: state:OR AND country:US
UPDATE:
I have tried something like this
\sAND\s|\sOR\s
With this, I could find the patterns " AND ", " OR ". But, how to make it case-insensitive?

Answer 1

What flavor or regex are you using ?
If the value in your key/pair values will always be comprised of one word only, this would do:
\w+:\w+
Test it here.
Update:
Since your values are comprised by more than one word only, I think you should be splitting the string into key/value pairs instead of using regexes.
Here's how you could do it in javascript:
var s = 'state:New York AND country:US OR postalcode:8888'
var dataBlocks = s.replace(/AND|and|And|OR|Or/g, '|').split('|')
for(var i = 0; i < dataBlocks.length; i++) dataBlocks[i] = dataBlocks[i].trim()
//your resulting array would like like
//Array [ "state:New York", "country:US", "postalcode:8888" ]
The same solution, in C#:
Regex r = new Regex(#"AND|and|And|OR|Or");
var s = "state:New York AND country:US OR postalcode:8888";
var keyValuePairs = r.Replace(s, "|").Split(new char[] { '|' }).Select(z =>
{
var keyValue = z.Trim().Split(new char[] { ':' });
return new KeyValuePair<string, string>(keyValue.FirstOrDefault(), keyValue.LastOrDefault());
});
foreach (var keyValuePair in keyValuePairs)
Console.WriteLine("Key: {0}\tValue:{1}", keyValuePair.Key, keyValuePair.Value);