more cleanPgn() cleanup: trim lines, del initial blanks, one space only...

PgnParser.php

@@ -89,11 +89,6 @@ class PgnParser
          */
         $c = preg_replace('/"\]\s*([\.0-9]|{)/s', "\"]\n\n$1", $c);
 
-        /* remove space before '['
-         * This is possible because brackets within comments are protected above
-         */
-        $c = str_replace(" +[", "[", $c);
-
         /* set '\n\n' between non tag line and tag line (between two games)
          * This is possible because brackets within comments are protected above
          */
@@ -102,7 +97,15 @@ class PgnParser
         /* revert brackets within movetext comments */
         $c = str_replace("//--SB--//", "[", $c);
 
-        /* max 2 consecutive '\n */
+        /* Final trimming:
+         * - remove initial blanks
+         * - keep only one space
+         * - trim lines
+         * - max 2 consecutive '\n'
+         */
+        $c = preg_replace("/^\s+([^\s])/", "$1", $c);
+        $c = preg_replace("/ +/", " ", $c);
+        $c = preg_replace("/\s*\n\s*/", "\n", $c);
         $c = preg_replace("/\n{3,}/s", "\n\n", $c);
 
         return $c;