Fix acceptance of escaped spaces in connection strings

Author: trowski

src/SqlConfig.php

@@ -13,7 +13,7 @@ abstract class SqlConfig
     ];
 
     private const KEY_VALUE_PAIR_REGEXP = <<<'REGEXP'
-        [\G\s*(\w+)=((['"])(?:\\(?:\\|\3)|(?!\3).)*+\3|[^ '";]\S*?)(?:\s+|;|$)]
+        [\G\s*(\w+)=((['"])(?:\\(?:\\|\3)|(?!\3).)*+\3|[^ '";](?:\\(?:\\| )|(?!\s+|;| ).)*+)(?:\s+|;|$)]
         REGEXP;
 
     private string $host;
@@ -62,6 +62,8 @@ protected static function parseConnectionString(string $connectionString, array
                 if ($value === '') {
                     throw new \ValueError("Empty connection string value for key '{$key}'");
                 }
+            } else {
+                $value = \str_replace('\\ ', ' ', $value);
             }
 
             \assert($key !== null && $key !== '');

test/SqlConfigTest.php

@@ -65,6 +65,19 @@ public function testQuoteInQuotedValue(): void
         self::assertSame('test', $config->getDatabase());
     }
 
+    public function testEscapedSpace(): void
+    {
+        $config = $this->createConfigFromString(
+            <<<'CS'
+            host=localhost user=Test\ User database=Test\ Name
+            CS
+        );
+
+        self::assertSame('localhost', $config->getHost());
+        self::assertSame('Test User', $config->getUser());
+        self::assertSame('Test Name', $config->getDatabase());
+    }
+
     public function provideInvalidConnectionStrings(): array
     {
         return [