Added multiline parsing

app/common/Implement/Parser.php

@@ -3,12 +3,19 @@ namespace ProVM\Common\Implement;
 
 use Exception;
 use ProVM\Common\Define\Log;
+use ProVM\Logview\Exception\Parse\EmptyException;
+use ProVM\Logview\Exception\Parse\EmptyLineException;
 use ProVM\Logview\Log as LogContent;
 use ProVM\Common\Define\Parser as Definition;
-use function Safe\fopen;
+use function Safe\{fopen, fclose};
 
 abstract class Parser implements Definition
 {
+    public function isMultiline(string $filename): bool
+    {
+        return false;
+    }
+
     public function total(string $filename): int
     {
         try {
@@ -24,8 +31,31 @@ abstract class Parser implements Definition
             return 0;
         }
     }
-    public function parse(string $content): Log
+    public function parse(mixed &$file_handler): Log
     {
+        $content = fgets($file_handler);
+        if (!$content) {
+            $meta_data = stream_get_meta_data($file_handler);
+            throw new EmptyException($meta_data['uri'], ftell($file_handler));
+        }
+        if (trim($content) === '') {
+            $meta_data = stream_get_meta_data($file_handler);
+            throw new EmptyLineException($meta_data['uri'], ftell($file_handler));
+        }
         return new LogContent($content);
     }
+    public function advance(mixed &$file_handler, int $offset): void
+    {
+        if ($offset === 0) {
+            return;
+        }
+        $cnt = 0;
+        while(!feof($file_handler)) {
+            fgets($file_handler);
+            $cnt ++;
+            if ($cnt >= $offset) {
+                break;
+            }
+        }
+    }
 }