/[Frey]/branches/zimbardo/lib/Frey/Web.pm
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Revision 677 - (hide annotations)
Tue Dec 2 02:01:23 2008 UTC (15 years, 3 months ago) by dpavlin
Original Path: trunk/lib/Frey/Web.pm
File size: 14459 byte(s)
fix conversion to html to aviod double linking class names
1 dpavlin 100 package Frey::Web;
2     use Moose::Role;
3    
4 dpavlin 564 with 'Frey::Session';
5    
6 dpavlin 388 use Frey::Types;
7    
8 dpavlin 564 #use Continuity::Widget::DomNode;
9 dpavlin 100 use Data::Dump qw/dump/;
10 dpavlin 653 use Carp qw/confess cluck carp/;
11 dpavlin 161 use File::Slurp;
12 dpavlin 100
13 dpavlin 410 use Frey::Bookmarklet;
14     use Frey::ClassBrowser;
15 dpavlin 540 use Frey::INC;
16    
17 dpavlin 505 use Frey::SVK;
18 dpavlin 410
19 dpavlin 611 use Text::Tabs; # expand, unexpand
20    
21 dpavlin 578 our @head;
22 dpavlin 584 sub head { @head }
23 dpavlin 121
24 dpavlin 392 has 'request_url' => (
25 dpavlin 388 is => 'rw',
26     isa => 'Uri', coerce => 1,
27 dpavlin 625 required => 1,
28 dpavlin 627 default => sub {
29 dpavlin 653 carp "undefined request_url";
30 dpavlin 627 '/';
31     },
32 dpavlin 388 );
33    
34 dpavlin 418 has 'title' => (
35     is => 'rw',
36     isa => 'Str',
37     lazy => 1,
38     default => sub {
39     my ($self) = @_;
40     ref($self);
41     },
42     );
43    
44 dpavlin 448 has 'content_type' => (
45     is => 'rw',
46     isa => 'Str',
47     default => 'text/html',
48 dpavlin 476 documentation => 'Content-type header',
49 dpavlin 448 );
50    
51 dpavlin 476 has 'dump_max_bytes' => (
52     is => 'rw',
53     isa => 'Int',
54     default => 4096,
55 dpavlin 543 documentation => 'maximum dump size sent to browser before truncation',
56 dpavlin 476 );
57    
58 dpavlin 161 has 'inline_smaller_than' => (
59     is => 'rw',
60     isa => 'Int',
61     default => 10240,
62 dpavlin 543 documentation => 'inline JavaScript and CSS to reduce round-trips',
63 dpavlin 161 );
64    
65 dpavlin 543 has 'html_dump_width' => (
66     documentation => 'crop longer lines in dumps',
67 dpavlin 535 is => 'rw',
68     isa => 'Int',
69 dpavlin 543 # required => 1, # FIXME we can't have required fields with defaults because Frey::Action isn't smart enough and asks for them
70 dpavlin 634 default => 250,
71 dpavlin 535 );
72    
73     my %escape = ('<'=>'&lt;', '>'=>'&gt;', '&'=>'&amp;', '"'=>'&quot;');
74     my $escape_re = join '|' => keys %escape;
75    
76     sub html_escape {
77     my ( $self, $html ) = @_;
78     $html =~ s/($escape_re)/$escape{$1}/g;
79     return $html;
80     }
81    
82     sub html_dump {
83 dpavlin 543 my ( $self, $dump ) = @_;
84     $dump = dump( $dump ) if ref($dump);
85     my $width = $self->html_dump_width;
86     $dump =~ s{(\n[^\n]{$width})([^\n]+?)([^\n]{5})}{\n$1...$3}gs;
87     $dump = $self->html_escape( $dump );
88     $dump =~ s{\Q...\E}{&hellip;}gs;
89 dpavlin 581 # $dump =~ $self->editor_links( $dump ); # FIXME include this
90 dpavlin 543 return "<code>$dump</code>";
91 dpavlin 535 }
92    
93 dpavlin 546 sub popup { my $self = shift; $self->popup_dropdown('popup', @_); }
94     sub dropdown { my $self = shift; $self->popup_dropdown('dropdown', @_); }
95    
96 dpavlin 596 our $re_html = qr{<(?:!--.+?--|(\w+).+?/\1|[^>]+/)>}s; # relaxed html check for one semi-valid tag
97 dpavlin 546
98     sub popup_dropdown {
99     my ( $self, $type, $name, $content, $full ) = @_;
100    
101     $content = $self->html_dump($content) if ref $content;
102    
103     $content = qq|<span>$content</span>| unless $content =~ m{^\s*<(span|a|code).+?/\1>\s*};
104    
105 dpavlin 581 $content =~ s{<span>(<code>[^<]+</code>)</span>}{$1} && $self->TODO("code wrapped in span");
106    
107 dpavlin 591 warn "## $type [$name] = ", length( $content ), " bytes"; # if $self->debug; # FIXME
108 dpavlin 546
109     if ( $name =~ m{::} && $name !~ $re_html ) {
110     return qq|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n|;
111 dpavlin 588 } elsif ( $name =~ s{^\s*(<a)\s+}{$1 class="frey-$type"} ) {
112     return qq|$name $content\n|;
113 dpavlin 546 } else {
114     return qq|<span class="frey-$type">$name $content</span>\n|;
115     }
116     }
117    
118 dpavlin 161 sub _inline_path {
119     my ( $self, $path ) = @_;
120     -s $path < $self->inline_smaller_than;
121     }
122    
123 dpavlin 156 sub _head_html {
124     my $self = shift;
125 dpavlin 121 my $out = '';
126 dpavlin 577 foreach my $path ( @head ) {
127 dpavlin 121 $path =~ s!^/!!;
128 dpavlin 156 if ( $path =~ m/\.js$/ ) {
129 dpavlin 161 $out .= $self->_inline_path( $path ) ?
130 dpavlin 600 qq|<script type="text/javascript">\n/* inline $path */\n\n| . read_file($path) . qq|\n</script>| :
131 dpavlin 161 qq|<script type="text/javascript" src="/$path"></script>|;
132 dpavlin 156 } elsif ( $path =~ m/\.css$/ ) {
133 dpavlin 161 $out .= $self->_inline_path( $path ) ?
134 dpavlin 600 qq|<style type="text/css">\n/* inline $path */\n\n| . read_file( $path ) . qq|\n</style>| :
135 dpavlin 161 qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|;
136 dpavlin 446 } elsif ( $path =~ m{<.+>}s ) {
137 dpavlin 444 $out .= $path;
138 dpavlin 156 } else {
139     confess "don't know how to render $path";
140     }
141 dpavlin 163 $out .= "\n";
142 dpavlin 121 }
143     return $out;
144     }
145 dpavlin 100
146 dpavlin 154 =head2 add_head
147    
148     $o->add_head( 'path/to/external.js' );
149    
150     my $size = $o->add_head( 'path/to/external.css' );
151    
152 dpavlin 445 $o->add_head( '<!-- html content -->' );
153    
154 dpavlin 154 =cut
155    
156     sub add_head {
157     my ( $self, $path ) = @_;
158     return if ! defined $path || $path eq '';
159     $path =~ s!^/!!;
160    
161 dpavlin 546 if ( $path =~ $re_html ) {
162 dpavlin 577 push @head, $path;
163 dpavlin 444 } elsif ( -e $path ) {
164 dpavlin 156 if ( $path =~ m/\.(?:js|css)$/ ) {
165 dpavlin 577 push @head, $path;
166 dpavlin 154 } else {
167     confess "can't add_head( $path ) it's not js or css";
168     }
169 dpavlin 444 return -s $path;
170 dpavlin 154 } else {
171     confess "can't find $path: $!";
172     }
173    
174     }
175    
176 dpavlin 577 sub add_css {
177     my ($self,$css) = @_;
178     my ( $package, $path, $line ) = caller;
179     $self->add_head( qq|
180     <style type="text/css">
181 dpavlin 581 /* via $package at $path line $line */
182 dpavlin 577 $css
183     </style>
184     | );
185     }
186    
187 dpavlin 142 our $reload_counter = 0;
188    
189 dpavlin 183
190     =head2 page
191    
192     $self->page(
193     title => 'page title',
194     head => '<!-- optional head markup -->',
195     body => '<b>Page Body</b>',
196     );
197    
198     =cut
199    
200 dpavlin 519 our @status;
201     sub status { @status };
202    
203 dpavlin 527 our $icon_html;
204    
205 dpavlin 121 sub page {
206 dpavlin 100 my $self = shift;
207 dpavlin 121 my $a = {@_};
208 dpavlin 100
209 dpavlin 519 warn "## page ",dump($a);
210    
211 dpavlin 142 $reload_counter++;
212    
213 dpavlin 388 my $status_line = '';
214 dpavlin 519
215     foreach my $part ( @status ) {
216 dpavlin 388 foreach my $name ( keys %$part ) {
217 dpavlin 537 $status_line .= $self->popup( $name, $part->{$name} );
218 dpavlin 388 }
219     }
220    
221 dpavlin 439 my $url = $self->request_url;
222     $url =~ s{\?reload=\d+}{};
223    
224 dpavlin 460 my $body = $a->{body};
225 dpavlin 591 if ( ! $body ) {
226     my $run = $a->{run} || 'as_markup';
227 dpavlin 611 warn "# no body, invoke $self->$run on ", ref($self);
228 dpavlin 671 eval {
229     $body = $self->$run;
230     };
231 dpavlin 674 $body = $self->error( $@, '' ) if $@;
232 dpavlin 591 }
233 dpavlin 460 if ( $self->content_type !~ m{html} ) {
234     warn "# return only $self body ", $self->content_type;
235     return $body
236     } elsif ( ! defined $body ) {
237     warn "# no body";
238     $body = '<!-- no body -->';
239     }
240 dpavlin 448
241 dpavlin 532 $status_line .= $self->warnings_html;
242 dpavlin 482
243 dpavlin 477 my ($exit,$description) = ('exit','stop server');
244     ($exit,$description) = ('restart','restart server')
245     if $ENV{FREY_RESTART}; # tune labels on exit link
246    
247 dpavlin 473 my $right =
248     qq|
249     <span class="right">
250 dpavlin 519 <a title="reload $url" href="/reload$url">reload</a>
251 dpavlin 644 <a title="$description" href="/exit$url" target="exit">$exit</a>
252 dpavlin 473 </span>
253     |;
254    
255 dpavlin 653 my $svk = Frey::SVK->new;
256 dpavlin 577 my $info = $svk->info;
257     my $revision = $svk->info->{Revision} || '';
258 dpavlin 516 $revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)};
259 dpavlin 505
260 dpavlin 527 $self->add_icon unless $icon_html;
261 dpavlin 524
262 dpavlin 388 my $html = join("\n",
263     qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
264     $self->_head_html,
265 dpavlin 418 '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
266 dpavlin 388 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
267 dpavlin 527 ( $icon_html || '<!-- no icon -->' ),
268 dpavlin 388 ( $a->{head} || '' ),
269     qq|
270 dpavlin 448 </head><body>
271     $body
272 dpavlin 388 <div class="frey-status-line">
273 dpavlin 505 <a href="/">Frey</a> $Frey::VERSION $revision
274 dpavlin 388 $status_line
275 dpavlin 473 $right
276 dpavlin 210 </div>
277     </body></html>
278 dpavlin 388 |,
279     );
280 dpavlin 100
281 dpavlin 121 warn "## >>> page ",length($html), " bytes\n" if $self->debug;
282 dpavlin 100
283 dpavlin 121 return $html;
284 dpavlin 100 }
285    
286 dpavlin 480 =head2 editor
287    
288     Create HTML editor link with optional line and title
289    
290     my $html = $self->editor( $class, $line, $title );
291    
292     =cut
293    
294     sub editor {
295     my ( $self, $class, $line, $title ) = @_;
296     confess "need class" unless $class;
297 dpavlin 519 if ( ! defined $title ) {
298     $title = "edit $class";
299     $title .= " line $line" if $line;
300     }
301     $line ||= 1;
302 dpavlin 480 qq|<a target="editor" href="/editor+$class+$line"| .
303     ( $title ? qq| title="$title"| : '' ) .
304     qq|>$class</a>|;
305     }
306    
307     =head2 editor_links
308    
309     Create HTML links to editor for perl error message
310    
311     my $html = $self->editor_links( $error )
312    
313     =cut
314    
315 dpavlin 468 sub editor_links {
316     my ( $self, $error ) = @_;
317    
318 dpavlin 591 # $error =~ s[(bless\({\s+.+?\s+},\s+)("[^"]+")(\) at)][<span class="frey-dropdown">$1<code>$2</code>$3</span>]gs; # FIXME insert bless hiding back
319    
320 dpavlin 671 # perl's backtrace
321 dpavlin 468 $error =~ s{at\s+(\S+)\s+line\s+(\d+)}
322 dpavlin 677 {at <a target="editor" href="/editor+$1+$2" title="vi $1 +$2">$1</a> line $2}gsm;
323 dpavlin 468
324 dpavlin 674 $error =~ s{(via (?:package)\s+"?)([\w:]+)("?)}
325 dpavlin 677 {$1<a target="$2" href="/$2" title="introspect $2">$2</a>$3}gsm
326     || # or anything that looks like "Class::Name"
327     $error =~ s{"(\w+(?:::\w+)+)"}
328     {"<a target="$1" href="/$1" title="introspect $1">$1</a>"}gsm;
329 dpavlin 468
330 dpavlin 671 # method error messages
331 dpavlin 677 # FIXME replace with link to Frey::Introspect data
332     $error =~ s{(method ")(\w+)(" via)}
333     {$1<a target="$2" href="/Frey::Shell::Grep/as_markup?pattern=$2" title="grep $2">$2</a>$3}gsm;
334 dpavlin 671
335    
336 dpavlin 468 return $error;
337     }
338    
339 dpavlin 671 =head2 error
340    
341     This method will return error to browser and backtrace unless
342     error message ends with LF C<\n> just like L<warn>
343    
344     =cut
345    
346 dpavlin 350 sub error {
347 dpavlin 397 my $self = shift;
348     my $error = join(" ", @_);
349 dpavlin 460
350 dpavlin 671 my $fatal = '';
351 dpavlin 460
352 dpavlin 671 if ( $error !~ m{\n$} ) {
353     if ( my @backtrace = $self->backtrace ) {
354     $error .= "\n\t" . join( "\n\t", @backtrace );
355     $fatal = qq| class="fatal"|;
356     }
357     }
358    
359 dpavlin 460 warn "ERROR: $error\n";
360 dpavlin 468 return
361 dpavlin 671 qq|<pre class="frey-error$fatal">|
362 dpavlin 468 . $self->editor_links( $error ) .
363     qq|</pre>|
364     ;
365 dpavlin 350 }
366    
367 dpavlin 577 =head1 Status line
368    
369     =head2 add_status
370    
371 dpavlin 581 $self->add_status( { name => { some => 'data' } } );
372 dpavlin 577
373     $self->add_status( "append to last status popup" );
374    
375     =cut
376    
377 dpavlin 507 sub add_status {
378     my ( $self, $data ) = @_;
379 dpavlin 581 push @status, { 'X' => [ $self->backtrace ] };
380 dpavlin 577 if ( ref($data) ) {
381     push @status, $data;
382     } else {
383 dpavlin 581 if ( defined $status[ $#status ] ) {
384     $status[ $#status ]->{ '+' } = $data;
385     } else {
386     push @status, { '+' => $data };
387     }
388 dpavlin 577 }
389 dpavlin 507 }
390    
391 dpavlin 577 =head2 clean_status
392    
393     Called at beginning of each request
394    
395     $self->clean_status;
396    
397     =cut
398    
399 dpavlin 519 sub clean_status {
400 dpavlin 577 my ($self) = shift;
401 dpavlin 578 @head = ( 'static/frey.css' );
402 dpavlin 581 @status = (
403 dpavlin 653 { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
404     { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
405     { 'INC' => Frey::INC->new->as_markup },
406 dpavlin 581 );
407 dpavlin 527 $icon_html = '';
408 dpavlin 519 }
409    
410 dpavlin 577 =head2 status_parts
411    
412     Dump all status line parts
413    
414     $self->status_parts
415    
416     =cut
417    
418 dpavlin 519 sub status_parts {
419     warn "## status parts ", dump( map { keys %$_ } @status );
420     }
421    
422 dpavlin 568 =for debug
423    
424 dpavlin 518 sub DEMOLISH {
425     my ( $self ) = @_;
426 dpavlin 529 warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status;
427 dpavlin 518 }
428    
429 dpavlin 568 =cut
430    
431 dpavlin 527 =head2 add_icon
432    
433     Frey::Foo->add_icon; # /static/icons/Frey/Foo.png
434     Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png
435    
436     =cut
437    
438 dpavlin 529 sub icon_path {
439     my ($self,$class,$variant) = @_;
440     my $icon = $class;
441 dpavlin 524 $icon =~ s{::}{/}g;
442 dpavlin 529 $icon .= "/$variant" if $variant;
443     my $path = 'static/icons/' . $icon . '.png';
444     if ( -e $path ) {
445 dpavlin 577 warn "# $class from $self icon_path $path" if $self->debug;
446 dpavlin 529 return $path;
447     } else {
448 dpavlin 564 $self->TODO( "add $path icon for $class" );
449 dpavlin 529 return undef;
450     }
451     }
452 dpavlin 524
453 dpavlin 529 sub add_icon {
454     my ($self,$variant) = @_;
455 dpavlin 524
456 dpavlin 529 my $class = ref($self);
457     $class = $self->class if $self->can('class');
458     my $icon_path = $self->icon_path( $class, $variant ) || return;
459 dpavlin 524
460 dpavlin 529 $icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|;
461     warn "# using icon $icon_path";
462    
463 dpavlin 527 =for later
464    
465 dpavlin 529 # FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work!
466     my $ico_path = $icon_path;
467     $ico_path =~ s{png$}{ico};
468     if ( ! -e $ico_path ) {
469     system "convert $icon_path $ico_path";
470     warn "# convert $icon_path $ico_path : $@";
471     }
472     $icon_html .= qq|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">| if -e $ico_path;
473 dpavlin 524
474 dpavlin 527 =cut
475    
476 dpavlin 524 }
477    
478 dpavlin 532 my $warn_colors = {
479     '#' => '#444',
480     '##' => '#888',
481     };
482    
483     my $multiline_markers = {
484 dpavlin 535 '(' => ')',
485 dpavlin 532 '{' => '}',
486 dpavlin 535 '[' => ']',
487 dpavlin 532 '"' => '"',
488     };
489    
490 dpavlin 671 =for later
491    
492 dpavlin 532 my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']';
493     warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re";
494    
495 dpavlin 671 =cut
496    
497 dpavlin 532 sub log_path {
498 dpavlin 629 $Frey::Bootstrap::log_path || die "no log_path?";
499 dpavlin 532 }
500    
501 dpavlin 648 our $last_log_pos = 0;
502     our $last_log_line = 0;
503    
504 dpavlin 652 our $pwd = `pwd`;
505     chomp $pwd;
506    
507 dpavlin 532 sub warnings_html {
508     my ($self,$level) = shift;
509 dpavlin 535 $level ||= $self->debug,
510 dpavlin 532 my $path = $self->log_path;
511    
512 dpavlin 611 my $max = 30;
513 dpavlin 588 my $pos = 0;
514     my @warnings = ( '' x $max ); # XXX circualar buffer for 50 lines
515 dpavlin 648 my $line = $last_log_line;
516 dpavlin 532 my $multiline_end;
517    
518 dpavlin 611 # XXX do we really want to do this every time?
519     my $css = qq|/* short css classes for levels */\n|;
520     my $level_to_class;
521     foreach ( keys %$warn_colors ) {
522     my $l = length($_);
523     my $class = 'l' . $l;
524     $css .= qq|.$class { color: $warn_colors->{$_} }\n|;
525     $level_to_class->{ $_ } = $class;
526     }
527     $self->add_css( $css );
528    
529 dpavlin 648 open(my $log, '<', $path) || die "can't open $path: $!";
530     seek($log, $last_log_pos, 0) || warn "can't seek: $!";
531 dpavlin 532 while(<$log>) {
532     chomp;
533     $line++;
534    
535 dpavlin 634 next if m{^\s+(Mojo|Class::MOP|Moose)::};
536    
537 dpavlin 532 my $style = '';
538    
539 dpavlin 588 =for filter
540    
541 dpavlin 535 if ( $multiline_end ) {
542     if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) {
543 dpavlin 537 # warn "## $line end of $multiline_end in '$_'\n";
544 dpavlin 535 undef $multiline_end;
545     } else {
546 dpavlin 537 # warn "## $line skipped\n";
547 dpavlin 535 }
548     } elsif ( m{^(#*)\s+} ) {
549 dpavlin 532 my $l = $1 ? length($1) : 0;
550 dpavlin 535 if ( $l > $level ) {
551     undef $multiline_end;
552     $multiline_end = $multiline_markers->{$1} if m{($multiline_re)$};
553 dpavlin 537 # warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end;
554 dpavlin 535 next;
555     }
556 dpavlin 532
557 dpavlin 588 =cut
558 dpavlin 611 if ( m{^(#*)} ) {
559 dpavlin 588
560 dpavlin 611 my $level = $1;
561     my $msg = $_;
562 dpavlin 532
563 dpavlin 652 # Mojo seems to expand warn messages to full path which is annoying
564     $msg =~ s{/[^/]+/\.\./}{/}gs;
565     $msg =~ s{$pwd/*}{}gs;
566    
567 dpavlin 535 my $spacer = ' ';
568 dpavlin 611 my $real_msg = expand( $msg );
569     if ( length($real_msg) > $self->html_dump_width ) {
570    
571     $real_msg = substr( $msg, 0, $self->html_dump_width );
572     $msg = unexpand( $real_msg );
573 dpavlin 535 $spacer = '&hellip;'
574     }
575 dpavlin 611
576     $msg = $self->html_escape( $msg );
577    
578     if ( my $class = $level_to_class->{ $level } ) {
579     $msg = qq|<span class="$class">$msg</span>|;
580     }
581    
582 dpavlin 613 #$msg .= $spacer . qq|<a target="editor" href="/editor+$path+$line" style="float: right;">$line</a>\n|;
583     $msg = qq|<a target="editor" href="/editor+$path+$line" style="float: right;">$line</a>$msg|
584     . ( $spacer ? $spacer : '' )
585     . "\n"; # XXX <pre> needs this
586 dpavlin 611
587     $warnings[ $pos++ % $max ] = $msg;
588 dpavlin 532 }
589     }
590 dpavlin 648 $last_log_pos = tell($log);
591     $last_log_line = $line;
592     warn "log has $line lines tell position $last_log_pos";
593 dpavlin 532 close($log) || die "can't close $path: $!";
594    
595 dpavlin 588 my $size = -s $path;
596    
597 dpavlin 611 my $warnings = join("",
598 dpavlin 613 map { $warnings[ ( $pos + $_ ) % $max ] || '' } 0 .. ( $max - 1 )
599 dpavlin 588 );
600    
601     my $s = length($warnings);
602    
603 dpavlin 532 return
604 dpavlin 611 # need to wrap editor link into span so we can have links in warnings
605 dpavlin 588 qq|<span class="frey-popup"><a target="editor" href="/editor+$path+$line" title="$path \| $size -> $s bytes \| $line -> $pos lines \| level $level">warn</a><code>|
606 dpavlin 611 . $self->editor_links( $warnings )
607 dpavlin 648 . qq|</code></span>|
608 dpavlin 532 ;
609     }
610    
611 dpavlin 543
612     =head2 backtrace
613    
614     Show backtrace with links to editor
615    
616     my @backtrace = $self->backtrace;
617    
618     =cut
619    
620     sub backtrace {
621     my ($self) = @_;
622    
623     my @backtrace;
624     foreach ( 0 .. 5 ) {
625     my (
626     $package,$path,$line
627     # subroutine hasargs
628     # wantarray evaltext is_require
629     # hints bitmask hinthash
630     ) = caller($_) or last;
631    
632     push @backtrace,
633 dpavlin 674 qq|via "$package" at $path line $line|;
634 dpavlin 543 }
635 dpavlin 591 #warn "# backtrace: ", dump( @backtrace ) if @backtrace;
636 dpavlin 543 return @backtrace;
637     }
638    
639 dpavlin 100 1;

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