View Subcategory
Regex
Matching

Check if a string matches a regular expression

Display "ok" if "Hello" matches /[A-Z][a-z]+/
fsharp
if (Regex.IsMatch("Hello", "[A-Z][a-z]+")) then printfn "ok"
clojure
(if (re-matches #"[A-Z][a-z]+" "Hello")
(println "ok"))

Check if a string matches with groups

Display "two" if "one two three" matches /one (.*) three/
fsharp
let regmatch = (Regex.Match("one two three", "one (.*) three"))
if regmatch.Success then (printfn "%s" (regmatch.Groups.[1].Captures.[0].ToString()))
clojure
(if-let [groups (re-matches #"one (.*) three" "one two three")]
(println (second groups)))