add concatenation strategy

src/Strategies/Text/Concatenation.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Mokhosh\Muddle\Strategies\Text;
+
+use Mokhosh\Muddle\Contracts\TextStrategy;
+
+class Concatenation implements TextStrategy
+{
+    public function muddle(string $string): string
+    {
+        $concatenated = implode("'+'", str_split($string));
+
+        return "<script>document.write('".$concatenated."');</script>";
+    }
+
+    public function unmuddle(string $string): string
+    {
+        return str_replace(["<script>document.write('", "');</script>", "'", '+'], '', $string);
+    }
+}

tests/Strategies/Text/ConcatenationTest.php

@@ -0,0 +1,10 @@
+<?php
+
+use Mokhosh\Muddle\Strategies\Text\Concatenation;
+
+it('muddles text', function () {
+    expect($muddled = (new Concatenation)->muddle('[email protected]'))
+        ->toBe("<script>document.write('t'+'e'+'s'+'t'+'@'+'e'+'x'+'a'+'m'+'p'+'l'+'e'+'.'+'c'+'o'+'m');</script>")
+        ->and((new Concatenation)->unmuddle($muddled))
+        ->toBe('[email protected]');
+});