Added support for files with multiple barcodes

composer.json

@@ -1,5 +1,5 @@
 {
-    "name": "tarfin-labs/zbar-php",
+    "name": "mehr-it/zbar-php",
     "description": "zbar-php is a php package that provides an interface to the zbar bar-code reading library.",
     "keywords": [
         "tarfin-labs",

src/Zbar.php

@@ -70,11 +70,15 @@ private function runProcess()
 
         $this->process->run();
 
+		$output = $this->process->getOutput();
+
         if (! $this->process->isSuccessful()) {
-            throw ZbarError::exitStatus($this->process->getExitCode());
+
+			if ($this->process->getExitCode() !== -1 || strpos($output, '<barcodes') !== 0)
+                throw ZbarError::exitStatus($this->process->getExitCode());
         }
 
-        return $this->output = $this->parse($this->process->getOutput());
+        return $this->output = $this->parse($output);
     }
 
     /**
@@ -87,10 +91,31 @@ private function runProcess()
     public function scan()
     {
         $output = $this->runProcess();
+
+		if (is_array($output))
+			$output = $output[0];
 
         return $output->data;
     }
 
+	/**
+	 * Scan bar-codes and return all values.
+	 *
+	 * @return string[]
+	 *
+	 * @throws \TarfinLabs\ZbarPhp\Exceptions\ZbarError
+	 */
+	public function scanAll() {
+		$output = $this->runProcess();
+
+		if (!is_array($output))
+			$output = [$output];
+
+		return array_map(function ($item) {
+			return $item->data;
+		}, $output);
+	}
+
     /**
      * Get the bar-code type after scanning it.
      *
@@ -113,11 +138,34 @@ public function type()
     public function decode()
     {
         $output = $this->runProcess();
+
+	    if (is_array($output))
+		    $output = $output[0];
+
         $code = $output->data;
         $type = $output->{'@attributes'}->type;
 
         return new BarCode($code, $type);
     }
+
+	/**
+     * Find both the bar-code and type of the bar-codes then returns objects for all barcodes.
+     *
+     * @return BarCode[]
+     *
+     * @throws \TarfinLabs\ZbarPhp\Exceptions\ZbarError
+     */
+    public function decodeAll()
+    {
+        $output = $this->runProcess();
+
+	    if (!is_array($output))
+		    $output = [$output];
+
+        return array_map(function ($item) {
+	        return new BarCode($item->data, $item->{'@attributes'}->type);
+        }, $output);
+    }
 
     /**
      * Return symbol object.

tests/ZbarTest.php

@@ -34,6 +34,11 @@ class ZbarTest extends TestCase
      */
     protected $ean13;
 
+	/**
+	 * @var string
+	 */
+	protected $code128andEan13;
+
     /**
      * @var string
      */
@@ -49,6 +54,7 @@ protected function setUp(): void
         $this->emptyImage = __DIR__.'/files/empty.png';
         $this->ean13 = __DIR__.'/files/ean-13.jpg';
         $this->code128 = __DIR__.'/files/code-128.png';
+        $this->code128andEan13 = __DIR__.'/files/code-128-and-ean13.png';
     }
 
     /** @test */
@@ -141,4 +147,69 @@ public function it_can_get_bar_code_and_type_of_qrcode()
         $this->assertSame('tarfin', $barCode->code());
         $this->assertSame('QR-Code', $barCode->type());
     }
+
+	/** @test */
+	public function it_can_scan_barcode_from_file_with_multiple_barcodes() {
+		$zbar = new Zbar($this->code128andEan13);
+		$code = $zbar->scan();
+
+		$this->assertSame(true, in_array($code, ['1234567890', '1234567890128']));
+	}
+
+	/** @test */
+	public function it_can_scan_all_barcodes_from_file_with_multiple_barcodes() {
+		$zbar = new Zbar($this->code128andEan13);
+		$codes = $zbar->scanAll();
+
+		$this->assertSame(true, in_array('1234567890', $codes));
+		$this->assertSame(true, in_array('1234567890128', $codes));
+		$this->assertCount(2, $codes);
+	}
+
+	/** @test */
+	public function it_can_get_barcode_and_type_from_file_with_multiple_barcodes() {
+		$zbar = new Zbar($this->code128andEan13);
+		$barcode = $zbar->decode();
+
+		switch ($barcode->code()) {
+			case '1234567890128':
+				$this->assertSame('EAN-13', $barcode->type());
+				break;
+			case '1234567890':
+				$this->assertSame('CODE-128', $barcode->type());
+				break;
+			default:
+				$this->fail("Unexpected barcode value \"{$barcode->code()}\".");
+		}
+	}
+
+	/** @test */
+	public function it_can_get_all_barcodes_and_types_from_file_with_multiple_barcodes() {
+		$zbar = new Zbar($this->code128andEan13);
+		$barcodes = $zbar->decodeAll();
+
+		$seen = [
+			'1234567890128' => false,
+			'1234567890' => false,
+		];
+
+		foreach($barcodes as $barcode) {
+
+
+			switch ($barcode->code()) {
+				case '1234567890128':
+					$this->assertSame('EAN-13', $barcode->type());
+					break;
+				case '1234567890':
+					$this->assertSame('CODE-128', $barcode->type());
+					break;
+				default:
+					$this->fail("Unexpected barcode value \"{$barcode->code()}\".");
+			}
+			$seen[$barcode->code()] = true;
+		}
+
+		$this->assertSame(true, $seen['1234567890128']);
+		$this->assertSame(true, $seen['1234567890']);
+	}
 }