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Regex

Matching

Check if a string matches a regular expression

Display "ok" if "Hello" matches /[A-Z][a-z]+/

clojure

(if (re-matches #"[A-Z][a-z]+" "Hello")
(println "ok"))

cpp C++/CLI .NET 2.0

if ((gcnew Regex("[A-Z][a-z]+"))->IsMatch("Hello")) Console::WriteLine("ok");

cpp C++/CLI .NET 2.0

if (Regex::IsMatch("Hello", "[A-Z][a-z]+")) Console::WriteLine("ok");

cpp C++/CLI .NET 2.0

Regex^ rx = gcnew Regex("[A-Z][a-z]+");
if (rx->IsMatch("Hello")) Console::WriteLine("ok");

cpp

cmatch what;
if (regex_match("Hello", what, regex("[A-Z][a-z]+")))
cout << "ok" << endl;

csharp

if (Regex.IsMatch("Hello", "[A-Z][a-z]+"))
{
Console.WriteLine("ok");
}

erlang

String = "Hello", Regexp = "[A-Z][a-z]+",
is_match(String, Regexp) andalso (begin io:format("ok~n"), true end).

erlang 12B3+

case re:run("Hello", "[A-Z][a-z]+") of {match, _} -> ok end.

fantom

if (Regex<|[A-Z][a-z]+|>.matches("Hello"))
echo("ok")

fsharp

if (Regex.IsMatch("Hello", "[A-Z][a-z]+")) then printfn "ok"

groovy

if ("Hello" =~ /[A-Z][a-z]+/) println 'ok'

groovy 1.6.1+

if ("Hello".find(/[A-Z][a-z]+/)) println 'ok'

groovy 1.6.1+

// with precompiled regex
def regex = ~/[A-Z][a-z]+/
if ("Hello".find(regex)) println 'ok'

groovy 1.6.1+

// with precompiled regex
def regex = ~/[A-Z][a-z]+/
if ("Hello".matches(regex)) println 'ok'

groovy

if ("Hello".matches("[A-Z][a-z]+")) println 'ok'

haskell

import Text.Regex.Posix
main = if "Hello" =~ "[A-Z][a-z]+" then putStrLn "OK" else return ()

java

if ("Hello".matches("[A-Z][a-z]+")) {
System.out.println("ok");
}

ocaml

if Str.string_match (Str.regexp "[A-Z][a-z]+") "Hello" 0
then print_string "ok";;

perl

print 'ok' if ('Hello' =~ /[A-Z][a-z]+/);

python

found = re.match(r'[A-Z][a-z]+', 'Hello')
if found:
print 'ok'

ruby

puts "ok" if ("Hello"=~/^[A-Z][a-z]+$/)

scala

if ("Hello".matches("[A-Z][a-z]+")) println("ok")

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