jzon.inc.php

@@ -10,15 +10,17 @@ function jzon_show_position(int $p, string $in, int $context_lines = 5) : string
 {
   $out = array();
   $lines = explode("\n", $in);
+  //let's find out the maximum leading zeros for line numbers
+  $fmt_num = (int)round(log10(count($lines)));
   foreach($lines as $line_idx => $line)
   {
-    //normalizing tabs by converting them to spaces
-    $out[] = str_replace("\t", "    ", $line);
+    //adding line numbers and handling tabs
+    $out[] = sprintf('%0'.$fmt_num.'d', $line_idx) . ' ' . str_replace("\t", "    ", $line);
     $left = $p - (strlen($line) + 1/*taking into account \n*/);
-    if($left <= 0)
+    //var_dump($left, $p, $line, $fmt_num);
+    if($left < 0)
     {
-      $arrow = '';
-      //let's take into account tabs
+      $arrow = str_repeat('-', $fmt_num) . '-'; //line numbers
       for($i=0;$i<$p;++$i)
         $arrow .= ($line[$i] === "\t" ? '----' : '-');
       $arrow .= '^';
@@ -30,14 +32,6 @@ function jzon_show_position(int $p, string $in, int $context_lines = 5) : string
   }
   if(count($out) > $context_lines)
     $out = array_slice($out, -$context_lines);
-
-  //let's add line numbers
-  end($out);
-  //let's find out the maximum leading zeros for line numbers
-  $fmt_num = (int)round(log10(key($out)))+1;
-  foreach($out as $idx => $line)
-    $out[$idx] = sprintf('%0'.$fmt_num.'d', ($idx+1)) . ' ' . $line;
-
   return implode("\n", $out);
 }