add AlternativeText::fromRawString (#94)

src/AlternativeText.php

@@ -12,6 +12,11 @@ final class AlternativeText
      */
     private $text;
 
+    /**
+     * @var bool
+     */
+    private $shouldNormalizeSpace = true;
+
     /**
      * @param string $text
      */
@@ -41,7 +46,11 @@ public function getRaw(): string
      */
     public function __toString(): string
     {
-        return $this->normalizeSpace($this->text);
+        if ($this->shouldNormalizeSpace) {
+            return $this->normalizeSpace($this->text);
+        }
+
+        return $this->text;
     }
 
     /**
@@ -85,6 +94,17 @@ public static function fromEncodedText(string $text, string $charset): Alternati
         return new self($converted);
     }
 
+    /**
+     * @param string $text
+     * @return AlternativeText
+     */
+    public static function fromRawString(string $text): AlternativeText
+    {
+        $self = new self($text);
+        $self->shouldNormalizeSpace = false;
+        return $self;
+    }
+
     /**
      * @param string $html
      * @return AlternativeText

test/Unit/AlternativeTextTest.php

@@ -33,6 +33,16 @@ public function it_strips_tags_on_dom_exception(): void
         $this->assertEquals($text, (string) $alternativeText);
     }
 
+    /**
+     * @test
+     */
+    public function it_does_not_normalize_space_for_raw_strings(): void
+    {
+        $text = '  test  ';
+        $alternativeText = AlternativeText::fromRawString($text);
+        $this->assertEquals($text, (string) $alternativeText);
+    }
+
     /**
      * @return array
      */