Works fine for me:

use strict;
use warnings;
use Test::More;

my $pdf = <<'EOT';
/CapHeight 667
>>
endobj 
1 0 obj 
<<
/Subtype /Type1C
/Length 1194
2 0 obj 
>>
stream
3 0 obj 
  BXTBMO+URWTypewriterTOT-LigNar %øøø
                                     ûûúNú% Lm
÷/÷>¦ 7D(URW)++,Copyright 2003 by (URW)++ Design & Development/FSType 
+4 def    - B F H J O S   r ¡S»OÑûb&#49912;ø&#1400;÷Å÷°Àø÷K{zwû
}}û}ø­Ô{ûp{|}¾}ü­}}X{|}øMÅ}µ÷g°÷4µµÄ÷¢Áø£zÜ|k}÷&#899;ªr¨°m\\Hf|oaviZb
+{~&#532;¸¬×©v¡¤tuJY<Z{hYso^P4ÇUî&#7980;&#1708;.÷!±´e~L~u^r^sP
                            a±ÊÕ&#303;÷
.û.û-Þ/÷ÖÀ¢º®¥­}wH{Ue?^±lr©zº±´«¼¥©©¤´º±|p¤¨l^dòûIµ÷#µø+
´oµ±Ã÷ÐÁ¬ø.uovat_wJY¨¾{~~zuj¤vo¬º~Ѹ¯§­¶Ïø
                                          ²|3{zI\\ÎsO°8=1û\'û#Ý-÷¹¯®û-
+÷Ø·®|l©­gfAGfsken^uZÛ÷
           ÊÖï´ø´öÜÞÜKÁè÷.øLz4|~±}ûê}}e|~÷6|k}ðløãuyyuux¡¡¡¢ytñ´ø´oµ
+ðÁ÷ÁØ÷/øLz3|~²}ûê}}d|~÷=|e}÷i¸ïÀÉà&#1653;_9û}}e|~÷=|d}÷îSÁ%>TfIu ´
+ø´oµðÁÐ÷/øLz3|~²}ûê}}d|~÷M|U}÷\\&#1765;º¢0©}rec{rqyy{wød÷K¶
Ã
 ¶

  Ò
   
÷ø\\
endstream 
endobj 
4 0 obj 
<<
/Length 422
>>
EOT

my @tests = (
    { no => 1, start => 26, end => 33 },
    { no => 2, start => 68, end => 75 },
    { no => 3, start => 87, end => 94 },
    { no => 4, start => 1315, end => 1322 },
);

plan tests => 2 * @tests;
for my $t (@tests) {
    my $result = $pdf =~ qr/^$t->{no} 0 obj/m;
    is $-[0], $t->{start}, "No $t->{no} first match starts at $t->{sta
+rt}";
    is $+[0], $t->{end},   "No $t->{no} first match ends at $t->{end}"
+;
}

[download]

Perl 5.20.3 on Linux

In reply to Re: Calculated position incorrect when using regex in text file that also contains binary info by hippo
in thread Calculated position incorrect when using regex in text file that also contains binary info by geertvc

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