Devel-StackTrace-AsHTMLExtended
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lib/Devel/StackTrace/AsHTMLExtended.pm  view on Meta::CPAN 

package Devel::StackTrace::AsHTMLExtended;

use strict;
use 5.008_001;
our $VERSION = '0.15';

use Data::Dumper;
use Devel::StackTrace;
use Scalar::Util;

no warnings 'qw';
my %enc = qw( & &amp; > &gt; < &lt; " &quot; ' &#39; );

# NOTE: because we don't know which encoding $str is in, or even if
# $str is a wide character (decoded strings), we just leave the low
# bits, including latin-1 range and encode everything higher as HTML
# entities. I know this is NOT always correct, but should mostly work
# in case $str is encoded in utf-8 bytes or wide chars. This is a
# necessary workaround since we're rendering someone else's code which
# we can't enforce string encodings.

sub encode_html {
    my $str = shift;
    $str =~ s/([^\x00-\x21\x23-\x25\x28-\x3b\x3d\x3f-\xff])/$enc{$1} || '&#' . ord($1) . ';' /ge;
    utf8::downgrade($str);
    $str;
}

sub Devel::StackTrace::as_html_extended {
    __PACKAGE__->render(@_);
}

sub render {
    my $class = shift;
    my $trace = shift;
    my %opt   = @_;

    $opt{max_dump_size} ||= 256*1024;

    my $msg = $opt{msg} // encode_html($trace->frame(0)->as_string(1));

    my $out;

    if (!$opt{inline}) {
        $out = qq{<!doctype html>
<html><head><title>Error: ${msg}</title>};
        $out .= '
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet">
<link href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.3/styles/default.min.css" rel="stylesheet">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.3/highlight.min.js"></script>';
    }

    if (ref $opt{style}) {
        $out .= qq(<style type="text/css">${$opt{style}}</style>);
    } else {
        $out .= qq(<link rel="stylesheet" type="text/css" href=") . encode_html($opt{style}) . q(" />);
    }

    if (!$opt{inline}) {
        $out .= qq(</head><body style="padding:1em; border-top: 0px;"><h1>Error trace</h1><pre class="message">$msg</pre>);
    }

    my $i = 0;
    while (my $frame = $trace->next_frame) {
        $i++;
        my $next_frame = $trace->frame($i); # peek next

        my $file_link;
        if ($frame->filename) {



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