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Revision 1.209 by root, Tue Jun 5 22:38:17 2012 UTC vs.
Revision 1.238 by root, Sun May 18 18:15:04 2014 UTC

1=encoding utf8 1=encoding utf8
2 2
3=head1 NAME 3=head1 NAME
4 4
5@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter 5urxvtperl - rxvt-unicode's embedded perl interpreter
6 6
7=head1 SYNOPSIS 7=head1 SYNOPSIS
8 8
9 # create a file grab_test in $HOME: 9 # create a file grab_test in $HOME:
10 10
11 sub on_sel_grab { 11 sub on_sel_grab {
12 warn "you selected ", $_[0]->selection; 12 warn "you selected ", $_[0]->selection;
13 () 13 ()
14 } 14 }
15 15
16 # start a @@RXVT_NAME@@ using it: 16 # start a urxvt using it:
17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 urxvt --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Every time a terminal object gets created, extension scripts specified via 22Every time a terminal object gets created, extension scripts specified via
23the C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in urxvtd, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31You can disable the embedded perl interpreter by setting both "perl-ext" 31You can disable the embedded perl interpreter by setting both "perl-ext"
32and "perl-ext-common" resources to the empty string. 32and "perl-ext-common" resources to the empty string.
33 33
34=head1 PREPACKAGED EXTENSIONS 34=head1 PREPACKAGED EXTENSIONS
35 35
36This section describes the extensions delivered with this release. You can 36A number of extensions are delivered with this release. You can find them
37find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 37in F<< <libdir>/urxvt/perl/ >>, and the documentation can be viewed using
38F<< man urxvt-<EXTENSIONNAME> >>.
38 39
39You can activate them like this: 40You can activate them like this:
40 41
41 @@RXVT_NAME@@ -pe <extensionname> 42 urxvt -pe <extensionname>
42 43
43Or by adding them to the resource for extensions loaded by default: 44Or by adding them to the resource for extensions loaded by default:
44 45
45 URxvt.perl-ext-common: default,selection-autotransform 46 URxvt.perl-ext-common: default,selection-autotransform
46 47
47=over 4 48Extensions that add command line parameters or resources on their own are
48 49loaded automatically when used.
49=item selection (enabled by default)
50
51(More) intelligent selection. This extension tries to be more intelligent
52when the user extends selections (double-click and further clicks). Right
53now, it tries to select words, urls and complete shell-quoted
54arguments, which is very convenient, too, if your F<ls> supports
55C<--quoting-style=shell>.
56
57A double-click usually selects the word under the cursor, further clicks
58will enlarge the selection.
59
60The selection works by trying to match a number of regexes and displaying
61them in increasing order of length. You can add your own regexes by
62specifying resources of the form:
63
64 URxvt.selection.pattern-0: perl-regex
65 URxvt.selection.pattern-1: perl-regex
66 ...
67
68The index number (0, 1...) must not have any holes, and each regex must
69contain at least one pair of capturing parentheses, which will be used for
70the match. For example, the following adds a regex that matches everything
71between two vertical bars:
72
73 URxvt.selection.pattern-0: \\|([^|]+)\\|
74
75Another example: Programs I use often output "absolute path: " at the
76beginning of a line when they process multiple files. The following
77pattern matches the filename (note, there is a single space at the very
78end):
79
80 URxvt.selection.pattern-0: ^(/[^:]+):\
81
82You can look at the source of the selection extension to see more
83interesting uses, such as parsing a line from beginning to end.
84
85This extension also offers following bindable keyboard commands:
86
87=over 4
88
89=item rot13
90
91Rot-13 the selection when activated. Used via keyboard trigger:
92
93 URxvt.keysym.C-M-r: perl:selection:rot13
94
95=back
96
97=item option-popup (enabled by default)
98
99Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
100runtime.
101
102Other extensions can extend this popup menu by pushing a code reference
103onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
104popup is being displayed.
105
106Its sole argument is the popup menu, which can be modified. It should
107either return nothing or a string, the initial boolean value and a code
108reference. The string will be used as button text and the code reference
109will be called when the toggle changes, with the new boolean value as
110first argument.
111
112The following will add an entry C<myoption> that changes
113C<< $self->{myoption} >>:
114
115 push @{ $self->{term}{option_popup_hook} }, sub {
116 ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
117 };
118
119=item selection-popup (enabled by default)
120
121Binds a popup menu to Ctrl-Button3 that lets you convert the selection
122text into various other formats/action (such as uri unescaping, perl
123evaluation, web-browser starting etc.), depending on content.
124
125Other extensions can extend this popup menu by pushing a code reference
126onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
127popup is being displayed.
128
129Its sole argument is the popup menu, which can be modified. The selection
130is in C<$_>, which can be used to decide whether to add something or not.
131It should either return nothing or a string and a code reference. The
132string will be used as button text and the code reference will be called
133when the button gets activated and should transform C<$_>.
134
135The following will add an entry C<a to b> that transforms all C<a>s in
136the selection to C<b>s, but only if the selection currently contains any
137C<a>s:
138
139 push @{ $self->{term}{selection_popup_hook} }, sub {
140 /a/ ? ("a to b" => sub { s/a/b/g }
141 : ()
142 };
143
144=item searchable-scrollback<hotkey> (enabled by default)
145
146Adds regex search functionality to the scrollback buffer, triggered
147by a hotkey (default: C<M-s>). While in search mode, normal terminal
148input/output is suspended and a regex is displayed at the bottom of the
149screen.
150
151Inputting characters appends them to the regex and continues incremental
152search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
153search upwards/downwards in the scrollback buffer, C<End> jumps to the
154bottom. C<Escape> leaves search mode and returns to the point where search
155was started, while C<Enter> or C<Return> stay at the current position and
156additionally stores the first match in the current line into the primary
157selection if the C<Shift> modifier is active.
158
159The regex defaults to "(?i)", resulting in a case-insensitive search. To
160get a case-sensitive search you can delete this prefix using C<BackSpace>
161or simply use an uppercase character which removes the "(?i)" prefix.
162
163See L<perlre> for more info about perl regular expression syntax.
164
165=item readline (enabled by default)
166
167A support package that tries to make editing with readline easier. At
168the moment, it reacts to clicking shift-left mouse button by trying to
169move the text cursor to this position. It does so by generating as many
170cursor-left or cursor-right keypresses as required (this only works
171for programs that correctly support wide characters).
172
173To avoid too many false positives, this is only done when:
174
175=over 4
176
177=item - the tty is in ICANON state.
178
179=item - the text cursor is visible.
180
181=item - the primary screen is currently being displayed.
182
183=item - the mouse is on the same (multi-row-) line as the text cursor.
184
185=back
186
187The normal selection mechanism isn't disabled, so quick successive clicks
188might interfere with selection creation in harmless ways.
189
190=item selection-autotransform
191
192This selection allows you to do automatic transforms on a selection
193whenever a selection is made.
194
195It works by specifying perl snippets (most useful is a single C<s///>
196operator) that modify C<$_> as resources:
197
198 URxvt.selection-autotransform.0: transform
199 URxvt.selection-autotransform.1: transform
200 ...
201
202For example, the following will transform selections of the form
203C<filename:number>, often seen in compiler messages, into C<vi +$filename
204$word>:
205
206 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
207
208And this example matches the same,but replaces it with vi-commands you can
209paste directly into your (vi :) editor:
210
211 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
212
213Of course, this can be modified to suit your needs and your editor :)
214
215To expand the example above to typical perl error messages ("XXX at
216FILENAME line YYY."), you need a slightly more elaborate solution:
217
218 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
219 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
220
221The first line tells the selection code to treat the unchanging part of
222every error message as a selection pattern, and the second line transforms
223the message into vi commands to load the file.
224
225=item tabbed
226
227This transforms the terminal into a tabbar with additional terminals, that
228is, it implements what is commonly referred to as "tabbed terminal". The topmost line
229displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
230button per tab.
231
232Clicking a button will activate that tab. Pressing B<Shift-Left> and
233B<Shift-Right> will switch to the tab left or right of the current one,
234while B<Shift-Down> creates a new tab.
235
236The tabbar itself can be configured similarly to a normal terminal, but
237with a resource class of C<URxvt.tabbed>. In addition, it supports the
238following four resources (shown with defaults):
239
240 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
241 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
242 URxvt.tabbed.tab-fg: <colour-index, default 0>
243 URxvt.tabbed.tab-bg: <colour-index, default 1>
244
245See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
246indices.
247
248=item matcher
249
250Uses per-line display filtering (C<on_line_update>) to underline text
251matching a certain pattern and make it clickable. When clicked with the
252mouse button specified in the C<matcher.button> resource (default 2, or
253middle), the program specified in the C<matcher.launcher> resource
254(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
255with the matched text as first argument. The default configuration is
256suitable for matching URLs and launching a web browser, like the
257former "mark-urls" extension.
258
259The default pattern to match URLs can be overridden with the
260C<matcher.pattern.0> resource, and additional patterns can be specified
261with numbered patterns, in a manner similar to the "selection" extension.
262The launcher can also be overridden on a per-pattern basis.
263
264It is possible to activate the most recently seen match or a list of matches
265from the keyboard. Simply bind a keysym to "perl:matcher:last" or
266"perl:matcher:list" as seen in the example below.
267
268Example configuration:
269
270 URxvt.perl-ext: default,matcher
271 URxvt.urlLauncher: sensible-browser
272 URxvt.keysym.C-Delete: perl:matcher:last
273 URxvt.keysym.M-Delete: perl:matcher:list
274 URxvt.matcher.button: 1
275 URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
276 URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
277 URxvt.matcher.launcher.2: gvim +$2 $1
278
279=item xim-onthespot
280
281This (experimental) perl extension implements OnTheSpot editing. It does
282not work perfectly, and some input methods don't seem to work well with
283OnTheSpot editing in general, but it seems to work at least for SCIM and
284kinput2.
285
286You enable it by specifying this extension and a preedit style of
287C<OnTheSpot>, i.e.:
288
289 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
290
291=item kuake<hotkey>
292
293A very primitive quake-console-like extension. It was inspired by a
294description of how the programs C<kuake> and C<yakuake> work: Whenever the
295user presses a global accelerator key (by default C<F10>), the terminal
296will show or hide itself. Another press of the accelerator key will hide
297or show it again.
298
299Initially, the window will not be shown when using this extension.
300
301This is useful if you need a single terminal that is not using any desktop
302space most of the time but is quickly available at the press of a key.
303
304The accelerator key is grabbed regardless of any modifiers, so this
305extension will actually grab a physical key just for this function.
306
307If you want a quake-like animation, tell your window manager to do so
308(fvwm can do it).
309
310=item overlay-osc
311
312This extension implements some OSC commands to display timed popups on the
313screen - useful for status displays from within scripts. You have to read
314the sources for more info.
315
316=item block-graphics-to-ascii
317
318A not very useful example of filtering all text output to the terminal
319by replacing all line-drawing characters (U+2500 .. U+259F) by a
320similar-looking ascii character.
321
322=item digital-clock
323
324Displays a digital clock using the built-in overlay.
325
326=item remote-clipboard
327
328Somewhat of a misnomer, this extension adds two menu entries to the
329selection popup that allows one to run external commands to store the
330selection somewhere and fetch it again.
331
332We use it to implement a "distributed selection mechanism", which just
333means that one command uploads the file to a remote server, and another
334reads it.
335
336The commands can be set using the C<URxvt.remote-selection.store> and
337C<URxvt.remote-selection.fetch> resources. The first should read the
338selection to store from STDIN (always in UTF-8), the second should provide
339the selection data on STDOUT (also in UTF-8).
340
341The defaults (which are likely useless to you) use rsh and cat:
342
343 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
344 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
345
346=item selection-pastebin
347
348This is a little rarely useful extension that uploads the selection as
349textfile to a remote site (or does other things). (The implementation is
350not currently secure for use in a multiuser environment as it writes to
351F</tmp> directly.).
352
353It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
354i.e.
355
356 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
357
358Pressing this combination runs a command with C<%> replaced by the name of
359the textfile. This command can be set via a resource:
360
361 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
362
363And the default is likely not useful to anybody but the few people around
364here :)
365
366The name of the textfile is the hex encoded md5 sum of the selection, so
367the same content should lead to the same filename.
368
369After a successful upload the selection will be replaced by the text given
370in the C<selection-pastebin-url> resource (again, the % is the placeholder
371for the filename):
372
373 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
374
375I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
376the double C</> characters as comment start. Use C<\057\057> instead,
377which works regardless of whether xrdb is used to parse the resource file
378or not.
379
380=item macosx-clipboard and macosx-clipboard-native
381
382These two modules implement an extended clipboard for Mac OS X. They are
383used like this:
384
385 URxvt.perl-ext-common: default,macosx-clipboard
386 URxvt.keysym.M-c: perl:macosx-clipboard:copy
387 URxvt.keysym.M-v: perl:macosx-clipboard:paste
388
389The difference between them is that the native variant requires a
390perl from apple's devkit or so, and C<macosx-clipboard> requires the
391C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
392simpler etc. etc.
393
394=item example-refresh-hooks
395
396Displays a very simple digital clock in the upper right corner of the
397window. Illustrates overwriting the refresh callbacks to create your own
398overlays or changes.
399
400=item confirm-paste
401
402Displays a confirmation dialog when a paste containing at least a full
403line is detected.
404
405=item bell-command
406
407Runs the command specified by the C<URxvt.bell-command> resource when
408a bell event occurs. For example, the following pops up a notification
409bubble with the text "Beep, Beep" using notify-send:
410
411 URxvt.bell-command: notify-send "Beep, Beep"
412
413=back
414 50
415=head1 API DOCUMENTATION 51=head1 API DOCUMENTATION
416 52
417=head2 General API Considerations 53=head2 General API Considerations
418 54
467internal use. 103internal use.
468 104
469Although it isn't a C<urxvt::term> object, you can call all methods of the 105Although it isn't a C<urxvt::term> object, you can call all methods of the
470C<urxvt::term> class on this object. 106C<urxvt::term> class on this object.
471 107
472It has the following methods and data members: 108Additional methods only supported for extension objects are described in
473 109the C<urxvt::extension> section below.
474=over 4
475
476=item $urxvt_term = $self->{term}
477
478Returns the C<urxvt::term> object associated with this instance of the
479extension. This member I<must not> be changed in any way.
480
481=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
482
483Dynamically enable the given hooks (named without the C<on_> prefix) for
484this extension, replacing any previous hook. This is useful when you want
485to overwrite time-critical hooks only temporarily.
486
487=item $self->disable ($hook_name[, $hook_name..])
488
489Dynamically disable the given hooks.
490
491=back
492 110
493=head2 Hooks 111=head2 Hooks
494 112
495The following subroutines can be declared in extension files, and will be 113The following subroutines can be declared in extension files, and will be
496called whenever the relevant event happens. 114called whenever the relevant event happens.
663 281
664=item on_refresh_end $term 282=item on_refresh_end $term
665 283
666Called just after the screen gets redrawn. See C<on_refresh_begin>. 284Called just after the screen gets redrawn. See C<on_refresh_begin>.
667 285
668=item on_user_command $term, $string 286=item on_user_command $term, $string *DEPRECATED*
669 287
670Called whenever a user-configured event is being activated (e.g. via 288Called whenever a user-configured event is being activated (e.g. via
671a C<perl:string> action bound to a key, see description of the B<keysym> 289a C<perl:string> action bound to a key, see description of the B<keysym>
672resource in the @@RXVT_NAME@@(1) manpage). 290resource in the urxvt(1) manpage).
673 291
674The event is simply the action string. This interface is assumed to change 292The event is simply the action string. This interface is going away in
675slightly in the future. 293preference to the C<on_action> hook.
676
677=item on_register_command $term, $keysym, $modifiermask, $string
678
679Called after parsing a keysym resource but before registering the
680associated binding. If this hook returns TRUE the binding is not
681registered. It can be used to modify a binding by calling
682C<register_command>.
683 294
684=item on_resize_all_windows $term, $new_width, $new_height 295=item on_resize_all_windows $term, $new_width, $new_height
685 296
686Called just after the new window size has been calculated, but before 297Called just after the new window size has been calculated, but before
687windows are actually being resized or hints are being set. If this hook 298windows are actually being resized or hints are being set. If this hook
688returns TRUE, setting of the window hints is being skipped. 299returns a true value, setting of the window hints is being skipped.
689 300
690=item on_x_event $term, $event 301=item on_x_event $term, $event
691 302
692Called on every X event received on the vt window (and possibly other 303Called on every X event received on the vt window (and possibly other
693windows). Should only be used as a last resort. Most event structure 304windows). Should only be used as a last resort. Most event structure
733(real, not screen-based) row and column under the mouse cursor. 344(real, not screen-based) row and column under the mouse cursor.
734 345
735C<on_key_press> additionally receives the string rxvt-unicode would 346C<on_key_press> additionally receives the string rxvt-unicode would
736output, if any, in locale-specific encoding. 347output, if any, in locale-specific encoding.
737 348
738subwindow.
739
740=item on_client_message $term, $event 349=item on_client_message $term, $event
741 350
742=item on_wm_protocols $term, $event 351=item on_wm_protocols $term, $event
743 352
744=item on_wm_delete_window $term, $event 353=item on_wm_delete_window $term, $event
755=cut 364=cut
756 365
757package urxvt; 366package urxvt;
758 367
759use utf8; 368use utf8;
760use strict; 369use strict 'vars';
761use Carp (); 370use Carp ();
762use Scalar::Util (); 371use Scalar::Util ();
763use List::Util (); 372use List::Util ();
764 373
765our $VERSION = 1; 374our $VERSION = 1;
766our $TERM; 375our $TERM;
767our @TERM_INIT; 376our @TERM_INIT; # should go, prevents async I/O etc.
768our @TERM_EXT; 377our @TERM_EXT; # should go, prevents async I/O etc.
769our @HOOKNAME; 378our @HOOKNAME;
770our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 379our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
771our %OPTION; 380our %OPTION;
772 381
773our $LIBDIR; 382our $LIBDIR;
943 }; 552 };
944} 553}
945 554
946no warnings 'utf8'; 555no warnings 'utf8';
947 556
948sub resource { 557sub parse_resource {
949 my ($term, $name, $isarg, $flag, $value) = @_; 558 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
950 559
560 $name =~ y/-/./ if $isarg;
561
951 $term->scan_meta; 562 $term->scan_extensions;
952 563
953 warn "resourece<@_>\n";#d# 564 my $r = $term->{meta}{resource};
565 keys %$r; # reset iterator
566 while (my ($pattern, $v) = each %$r) {
567 if (
568 $pattern =~ /\.$/
569 ? $pattern eq substr $name, 0, length $pattern
570 : $pattern eq $name
571 ) {
572 $name = "$urxvt::RESCLASS.$name";
573
574 push @{ $term->{perl_ext_3} }, $v->[0];
575
576 if ($v->[1] eq "boolean") {
577 $term->put_option_db ($name, $flag ? "true" : "false");
578 return 1;
579 } else {
580 $term->put_option_db ($name, $value);
581 return 1 + 2;
582 }
583 }
584 }
954 585
955 0 586 0
956} 587}
957 588
958sub usage { 589sub usage {
959 my ($term, $usage_type) = @_; 590 my ($term, $usage_type) = @_;
960 591
961 $term->scan_meta; 592 $term->scan_extensions;
962 593
963 my $r = $term->{meta}{resource}; 594 my $r = $term->{meta}{resource};
964 595
965 for my $regex (sort keys %$r) { 596 for my $pattern (sort keys %$r) {
966 my ($ext, $type, $desc) = @{ $r->{$regex} }; 597 my ($ext, $type, $desc) = @{ $r->{$pattern} };
967 598
968 $desc .= " (-pe $ext)"; 599 $desc .= " (-pe $ext)";
969 600
970 if ($usage_type == 1) { 601 if ($usage_type == 1) {
602 $pattern =~ y/./-/;
603 $pattern =~ s/-$/-.../g;
604
971 if ($type eq "boolean") { 605 if ($type eq "boolean") {
972 urxvt::log sprintf " -%-20.20s %s\n", "/+$regex", $desc; 606 urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
973 } else { 607 } else {
974 urxvt::log sprintf " -%-20.20s %s\n", "$regex $type", $desc; 608 urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
975 } 609 }
976 } else { 610 } else {
611 $pattern =~ s/\.$/.*/g;
977 urxvt::log sprintf " %-19.19s %s\n", "$regex:", $type; 612 urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
978 } 613 }
979 } 614 }
980} 615}
981 616
982my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 617my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
998 $pkg =~ s/[^[:word:]]/_/g; 633 $pkg =~ s/[^[:word:]]/_/g;
999 $pkg = "urxvt::ext::$pkg"; 634 $pkg = "urxvt::ext::$pkg";
1000 635
1001 verbose 3, "loading extension '$path' into package '$pkg'"; 636 verbose 3, "loading extension '$path' into package '$pkg'";
1002 637
638 (${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
639
1003 open my $fh, "<:raw", $path 640 open my $fh, "<:raw", $path
1004 or die "$path: $!"; 641 or die "$path: $!";
1005 642
1006 my $source = 643 my $source =
1007 "package $pkg; use strict; use utf8; no warnings 'utf8';\n" 644 "package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
1008 . "#line 1 \"$path\"\n{\n" 645 . "#line 1 \"$path\"\n{\n"
1009 . (do { local $/; <$fh> }) 646 . (do { local $/; <$fh> })
1010 . "\n};\n1"; 647 . "\n};\n1";
1011 648
1012 eval $source 649 eval $source
1021# called by the rxvt core 658# called by the rxvt core
1022sub invoke { 659sub invoke {
1023 local $TERM = shift; 660 local $TERM = shift;
1024 my $htype = shift; 661 my $htype = shift;
1025 662
1026 if ($htype == 0) { # INIT 663 if ($htype == HOOK_INIT) {
1027 my @dirs = $TERM->perl_libdirs; 664 my @dirs = $TERM->perl_libdirs;
665
666 $TERM->scan_extensions;
1028 667
1029 my %ext_arg; 668 my %ext_arg;
1030 669
1031 { 670 {
1032 my @init = @TERM_INIT; 671 my @init = @TERM_INIT;
1035 my @pkg = @TERM_EXT; 674 my @pkg = @TERM_EXT;
1036 @TERM_EXT = (); 675 @TERM_EXT = ();
1037 $TERM->register_package ($_) for @pkg; 676 $TERM->register_package ($_) for @pkg;
1038 } 677 }
1039 678
679 for (
1040 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 680 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
681 ) {
1041 if ($_ eq "default") { 682 if ($_ eq "default") {
1042 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 683
684 $ext_arg{$_} = []
685 for
686 qw(selection option-popup selection-popup readline),
687 map $_->[0], values %{ $TERM->{meta}{binding} },
688 @{ delete $TERM->{perl_ext_3} };
689
690 for ($TERM->_keysym_resources) {
691 next if /^(?:string|command|builtin|builtin-string|perl)/;
692 next unless /^([A-Za-z0-9_\-]+):/;
693
694 my $ext = $1;
695 $ext =~ y/-/_/;
696
697 $ext_arg{$ext} = [];
698 }
699
1043 } elsif (/^-(.*)$/) { 700 } elsif (/^-(.*)$/) {
1044 delete $ext_arg{$1}; 701 delete $ext_arg{$1};
702
1045 } elsif (/^([^<]+)<(.*)>$/) { 703 } elsif (/^([^<]+)<(.*)>$/) {
1046 push @{ $ext_arg{$1} }, $2; 704 push @{ $ext_arg{$1} }, $2;
705
1047 } else { 706 } else {
1048 $ext_arg{$_} ||= []; 707 $ext_arg{$_} ||= [];
708 }
709 }
710
711 # now register default key bindings
712 for my $ext (sort keys %ext_arg) {
713 while (my ($k, $v) = each %{ $TERM->{meta}{ext}{$ext}{binding} }) {
714 $TERM->bind_action ($k, "$v->[0]:$v->[1]");
1049 } 715 }
1050 } 716 }
1051 717
1052 for my $ext (sort keys %ext_arg) { 718 for my $ext (sort keys %ext_arg) {
1053 my @files = grep -f $_, map "$_/$ext", @dirs; 719 my @files = grep -f $_, map "$_/$ext", @dirs;
1067 733
1068 if (my $cb = $TERM->{_hook}[$htype]) { 734 if (my $cb = $TERM->{_hook}[$htype]) {
1069 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 735 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
1070 if $verbosity >= 10; 736 if $verbosity >= 10;
1071 737
738 if ($htype == HOOK_ACTION) {
739 # this hook is only sent to the extension with the name
740 # matching the first arg
741 my $pkg = shift;
742 $pkg =~ y/-/_/;
743 $pkg = "urxvt::ext::$pkg";
744
745 $cb = $cb->{$pkg}
746 or return undef; #TODO: maybe warn user?
747
748 $cb = { $pkg => $cb };
749 }
750
1072 for my $pkg (keys %$cb) { 751 for my $pkg (keys %$cb) {
1073 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) }; 752 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
1074 $retval ||= $retval_; 753 $retval ||= $retval_;
1075 754
1076 if ($@) { 755 if ($@) {
1077 $TERM->ungrab; # better to lose the grab than the session 756 $TERM->ungrab; # better to lose the grab than the session
1078 warn $@; 757 warn $@;
1081 760
1082 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 761 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
1083 if $verbosity >= 11; 762 if $verbosity >= 11;
1084 } 763 }
1085 764
1086 if ($htype == 1) { # DESTROY 765 if ($htype == HOOK_DESTROY) {
1087 # clear package objects 766 # clear package objects
1088 %$_ = () for values %{ $TERM->{_pkg} }; 767 %$_ = () for values %{ $TERM->{_pkg} };
1089 768
1090 # clear package 769 # clear package
1091 %$TERM = (); 770 %$TERM = ();
1121 } 800 }
1122 } 801 }
1123 ($mask, @color{qw(fg bg)}, \@failed) 802 ($mask, @color{qw(fg bg)}, \@failed)
1124} 803}
1125 804
1126# urxvt::term::extension
1127
1128package urxvt::term::extension; 805package urxvt::term::extension;
1129 806
1130sub enable { 807=head2 The C<urxvt::term::extension> class
1131 my ($self, %hook) = @_;
1132 my $pkg = $self->{_pkg};
1133 808
1134 while (my ($name, $cb) = each %hook) { 809Each extension attached to a terminal object is represented by
1135 my $htype = $HOOKTYPE{uc $name}; 810a C<urxvt::term::extension> object.
1136 defined $htype
1137 or Carp::croak "unsupported hook type '$name'";
1138 811
1139 $self->set_should_invoke ($htype, +1) 812You can use these objects, which are passed to all callbacks to store any
1140 unless exists $self->{term}{_hook}[$htype]{$pkg}; 813state related to the terminal and extension instance.
1141 814
1142 $self->{term}{_hook}[$htype]{$pkg} = $cb; 815The methods (And data members) documented below can be called on extension
1143 } 816objects, in addition to call methods documented for the <urxvt::term>
1144} 817class.
1145 818
1146sub disable { 819=over 4
1147 my ($self, @hook) = @_;
1148 my $pkg = $self->{_pkg};
1149 820
1150 for my $name (@hook) { 821=item $urxvt_term = $self->{term}
1151 my $htype = $HOOKTYPE{uc $name};
1152 defined $htype
1153 or Carp::croak "unsupported hook type '$name'";
1154 822
1155 $self->set_should_invoke ($htype, -1) 823Returns the C<urxvt::term> object associated with this instance of the
1156 if delete $self->{term}{_hook}[$htype]{$pkg}; 824extension. This member I<must not> be changed in any way.
1157 } 825
1158} 826=cut
1159 827
1160our $AUTOLOAD; 828our $AUTOLOAD;
1161 829
1162sub AUTOLOAD { 830sub AUTOLOAD {
1163 $AUTOLOAD =~ /:([^:]+)$/ 831 $AUTOLOAD =~ /:([^:]+)$/
1176 844
1177sub DESTROY { 845sub DESTROY {
1178 # nop 846 # nop
1179} 847}
1180 848
1181# urxvt::destroy_hook 849# urxvt::destroy_hook (basically a cheap Guard:: implementation)
1182 850
1183sub urxvt::destroy_hook::DESTROY { 851sub urxvt::destroy_hook::DESTROY {
1184 ${$_[0]}->(); 852 ${$_[0]}->();
1185} 853}
1186 854
1187sub urxvt::destroy_hook(&) { 855sub urxvt::destroy_hook(&) {
1188 bless \shift, urxvt::destroy_hook:: 856 bless \shift, urxvt::destroy_hook::
1189} 857}
858
859=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
860
861Dynamically enable the given hooks (named without the C<on_> prefix) for
862this extension, replacing any hook previously installed via C<enable> in
863this extension.
864
865This is useful when you want to overwrite time-critical hooks only
866temporarily.
867
868To install additional callbacks for the same hook, you can use the C<on>
869method of the C<urxvt::term> class.
870
871=item $self->disable ($hook_name[, $hook_name..])
872
873Dynamically disable the given hooks.
874
875=cut
876
877sub enable {
878 my ($self, %hook) = @_;
879 my $pkg = $self->{_pkg};
880
881 while (my ($name, $cb) = each %hook) {
882 my $htype = $HOOKTYPE{uc $name};
883 defined $htype
884 or Carp::croak "unsupported hook type '$name'";
885
886 $self->set_should_invoke ($htype, +1)
887 unless exists $self->{term}{_hook}[$htype]{$pkg};
888
889 $self->{term}{_hook}[$htype]{$pkg} = $cb;
890 }
891}
892
893sub disable {
894 my ($self, @hook) = @_;
895 my $pkg = $self->{_pkg};
896
897 for my $name (@hook) {
898 my $htype = $HOOKTYPE{uc $name};
899 defined $htype
900 or Carp::croak "unsupported hook type '$name'";
901
902 $self->set_should_invoke ($htype, -1)
903 if delete $self->{term}{_hook}[$htype]{$pkg};
904 }
905}
906
907=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
908
909Similar to the C<enable> enable, but installs additional callbacks for
910the given hook(s) (that is, it doesn't replace existing callbacks), and
911returns a guard object. When the guard object is destroyed the callbacks
912are disabled again.
913
914=cut
915
916sub urxvt::extension::on_disable::DESTROY {
917 my $disable = shift;
918
919 my $term = delete $disable->{""};
920
921 while (my ($htype, $id) = each %$disable) {
922 delete $term->{_hook}[$htype]{$id};
923 $term->set_should_invoke ($htype, -1);
924 }
925}
926
927sub on {
928 my ($self, %hook) = @_;
929
930 my $term = $self->{term};
931
932 my %disable = ( "" => $term );
933
934 while (my ($name, $cb) = each %hook) {
935 my $htype = $HOOKTYPE{uc $name};
936 defined $htype
937 or Carp::croak "unsupported hook type '$name'";
938
939 $term->set_should_invoke ($htype, +1);
940 $term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
941 = sub { shift; $cb->($self, @_) }; # very ugly indeed
942 }
943
944 bless \%disable, "urxvt::extension::on_disable"
945}
946
947=item $self->x_resource ($pattern)
948
949=item $self->x_resource_boolean ($pattern)
950
951These methods support an additional C<%> prefix when called on an
952extension object - see the description of these methods in the
953C<urxvt::term> class for details.
954
955=cut
956
957sub x_resource {
958 my ($self, $name) = @_;
959 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
960 $self->{term}->x_resource ($name)
961}
962
963sub x_resource_boolean {
964 my ($self, $name) = @_;
965 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
966 $self->{term}->x_resource_boolean ($name)
967}
968
969=back
970
971=cut
1190 972
1191package urxvt::anyevent; 973package urxvt::anyevent;
1192 974
1193=head2 The C<urxvt::anyevent> Class 975=head2 The C<urxvt::anyevent> Class
1194 976
1290 urxvt::verbose 6, "register package $pkg to $self"; 1072 urxvt::verbose 6, "register package $pkg to $self";
1291 1073
1292 @{"$pkg\::ISA"} = urxvt::term::extension::; 1074 @{"$pkg\::ISA"} = urxvt::term::extension::;
1293 1075
1294 my $proxy = bless { 1076 my $proxy = bless {
1295 _pkg => $pkg, 1077 _pkg => $pkg,
1078 _name => ${"$pkg\::_NAME"}, # hackish
1296 argv => $argv, 1079 argv => $argv,
1297 }, $pkg; 1080 }, $pkg;
1298 Scalar::Util::weaken ($proxy->{term} = $self); 1081 Scalar::Util::weaken ($proxy->{term} = $self);
1299 1082
1300 $self->{_pkg}{$pkg} = $proxy; 1083 $self->{_pkg}{$pkg} = $proxy;
1301 1084
1312 $ENV{URXVT_PERL_LIB}, 1095 $ENV{URXVT_PERL_LIB},
1313 "$ENV{HOME}/.urxvt/ext", 1096 "$ENV{HOME}/.urxvt/ext",
1314 "$LIBDIR/perl" 1097 "$LIBDIR/perl"
1315} 1098}
1316 1099
1317sub scan_meta { 1100# scan for available extensions and collect their metadata
1101sub scan_extensions {
1318 my ($self) = @_; 1102 my ($self) = @_;
1103
1104 return if exists $self->{meta};
1105
1319 my @libdirs = perl_libdirs $self; 1106 my @libdirs = perl_libdirs $self;
1320 1107
1321 return if $self->{meta_libdirs} eq join "\x00", @libdirs; 1108# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
1322 1109
1323 my %meta;
1324
1325 $self->{meta_libdirs} = join "\x00", @libdirs; 1110# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
1326 $self->{meta} = \%meta; 1111 $self->{meta} = \my %meta;
1327 1112
1113 # first gather extensions
1328 for my $dir (reverse @libdirs) { 1114 for my $dir (reverse @libdirs) {
1329 opendir my $fh, $dir 1115 opendir my $fh, $dir
1330 or next; 1116 or next;
1331 for my $ext (readdir $fh) { 1117 for my $ext (readdir $fh) {
1332 $ext ne "." 1118 $ext !~ /^\./
1333 and $ext ne ".."
1334 and open my $fh, "<", "$dir/$ext" 1119 and open my $fh, "<", "$dir/$ext"
1335 or next; 1120 or next;
1336 1121
1122 my %ext = (dir => $dir);
1123
1337 while (<$fh>) { 1124 while (<$fh>) {
1338 if (/^#:META:RESOURCE:(.*)/) { 1125 if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
1339 my ($regex, $type, $desc) = split /:/, $1; 1126 my ($pattern, $type, $desc) = split /:/, $1;
1340 $regex =~ s/\$\$/$ext/g; # $$ in regex == extension name 1127 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1128 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1129 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1130 } else {
1341 $meta{resource}{$regex} = [$ext, $type, $desc]; 1131 $ext{resource}{$pattern} = [$ext, $type, $desc];
1132 }
1133 } elsif (/^#:META:BINDING:(.*)/) {
1134 my ($keysym, $action) = split /:/, $1;
1135 $ext{binding}{$keysym} = [$ext, $action];
1342 } elsif (/^\s*(?:#|$)/) { 1136 } elsif (/^\s*(?:#|$)/) {
1343 # skip other comments and empty lines 1137 # skip other comments and empty lines
1344 } else { 1138 } else {
1345 last; # stop parsing on first non-empty non-comment line 1139 last; # stop parsing on first non-empty non-comment line
1346 } 1140 }
1347 } 1141 }
1142
1143 $meta{ext}{$ext} = \%ext;
1348 } 1144 }
1145 }
1146
1147 # and now merge resources and bindings
1148 while (my ($k, $v) = each %{ $meta{ext} }) {
1149 #TODO: should check for extensions overriding each other
1150 %{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} });
1151 %{ $meta{binding} } = (%{ $meta{binding} }, %{ $v->{binding} });
1349 } 1152 }
1350} 1153}
1351 1154
1352=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1155=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1353 1156
1373} 1176}
1374 1177
1375=item $term->destroy 1178=item $term->destroy
1376 1179
1377Destroy the terminal object (close the window, free resources 1180Destroy the terminal object (close the window, free resources
1378etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1181etc.). Please note that urxvt will not exit as long as any event
1379watchers (timers, io watchers) are still active. 1182watchers (timers, io watchers) are still active.
1380 1183
1381=item $term->exec_async ($cmd[, @args]) 1184=item $term->exec_async ($cmd[, @args])
1382 1185
1383Works like the combination of the C<fork>/C<exec> builtins, which executes 1186Works like the combination of the C<fork>/C<exec> builtins, which executes
1439 1242
1440Here is a likely non-exhaustive list of resource names, not all of which 1243Here is a likely non-exhaustive list of resource names, not all of which
1441are supported in every build, please see the source file F</src/rsinc.h> 1244are supported in every build, please see the source file F</src/rsinc.h>
1442to see the actual list: 1245to see the actual list:
1443 1246
1444 answerbackstring backgroundPixmap backspace_key blendtype blurradius 1247 answerbackstring backgroundPixmap backspace_key blurradius
1445 boldFont boldItalicFont borderLess buffered chdir color cursorBlink 1248 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
1446 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth 1249 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
1447 fade font geometry hold iconName iconfile imFont imLocale inputMethod 1250 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1448 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont 1251 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
1449 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier 1252 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
1469Returns the X-Resource for the given pattern, excluding the program or 1272Returns the X-Resource for the given pattern, excluding the program or
1470class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1273class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1471same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1274same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1472resource with that pattern exists. 1275resource with that pattern exists.
1473 1276
1277Extensions that define extra resource or command line arguments also need
1278to call this method to access their values.
1279
1280If the method is called on an extension object (basically, from an
1281extension), then the special prefix C<%.> will be replaced by the name of
1282the extension and a dot, and the lone string C<%> will be replaced by the
1283extension name itself. This makes it possible to code extensions so you
1284can rename them and get a new set of commandline switches and resources
1285without having to change the actual code.
1286
1474This method should only be called during the C<on_start> hook, as there is 1287This method should only be called during the C<on_start> hook, as there is
1475only one resource database per display, and later invocations might return 1288only one resource database per display, and later invocations might return
1476the wrong resources. 1289the wrong resources.
1477 1290
1291=item $value = $term->x_resource_boolean ($pattern)
1292
1293Like C<x_resource>, above, but interprets the string value as a boolean
1294and returns C<1> for true values, C<0> for false values and C<undef> if
1295the resource or option isn't specified.
1296
1297You should always use this method to parse boolean resources.
1298
1299=cut
1300
1301sub x_resource_boolean {
1302 my $res = &x_resource;
1303
1304 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1305}
1306
1478=item $success = $term->parse_keysym ($key, $octets) 1307=item $success = $term->bind_action ($key, $octets)
1479 1308
1480Adds a key binding exactly as specified via a resource. See the 1309Adds a key binding exactly as specified via a C<keysym> resource. See the
1481C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1310C<keysym> resource in the urxvt(1) manpage.
1482
1483=item $term->register_command ($keysym, $modifiermask, $string)
1484
1485Adds a key binding. This is a lower level api compared to
1486C<parse_keysym>, as it expects a parsed key description, and can be
1487used only inside either the C<on_init> hook, to add a binding, or the
1488C<on_register_command> hook, to modify a parsed binding.
1489 1311
1490=item $rend = $term->rstyle ([$new_rstyle]) 1312=item $rend = $term->rstyle ([$new_rstyle])
1491 1313
1492Return and optionally change the current rendition. Text that is output by 1314Return and optionally change the current rendition. Text that is output by
1493the terminal application will use this style. 1315the terminal application will use this style.
1673=item $term->tt_write ($octets) 1495=item $term->tt_write ($octets)
1674 1496
1675Write the octets given in C<$octets> to the tty (i.e. as program input). To 1497Write the octets given in C<$octets> to the tty (i.e. as program input). To
1676pass characters instead of octets, you should convert your strings first 1498pass characters instead of octets, you should convert your strings first
1677to the locale-specific encoding using C<< $term->locale_encode >>. 1499to the locale-specific encoding using C<< $term->locale_encode >>.
1500
1501=item $term->tt_write_user_input ($octets)
1502
1503Like C<tt_write>, but should be used when writing strings in response to
1504the user pressing a key, to invokes the additional actions requested by
1505the user for that case (C<tt_write> doesn't do that).
1506
1507The typical use case would be inside C<on_action> hooks.
1678 1508
1679=item $term->tt_paste ($octets) 1509=item $term->tt_paste ($octets)
1680 1510
1681Write the octets given in C<$octets> to the tty as a paste, converting NL to 1511Write the octets given in C<$octets> to the tty as a paste, converting NL to
1682CR and bracketing the data with control sequences if bracketed paste mode 1512CR and bracketing the data with control sequences if bracketed paste mode
1916} 1746}
1917 1747
1918sub urxvt::line::t { 1748sub urxvt::line::t {
1919 my ($self) = @_; 1749 my ($self) = @_;
1920 1750
1921 if (@_ > 1) 1751 if (@_ > 1) {
1922 {
1923 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) 1752 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1924 for $self->{beg} .. $self->{end}; 1753 for $self->{beg} .. $self->{end};
1925 } 1754 }
1926 1755
1927 defined wantarray && 1756 defined wantarray &&
1928 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1757 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
1929 0, $self->{len} 1758 0, $self->{len}
1930} 1759}
1931 1760
1932sub urxvt::line::r { 1761sub urxvt::line::r {
1933 my ($self) = @_; 1762 my ($self) = @_;
1934 1763
1935 if (@_ > 1) 1764 if (@_ > 1) {
1936 {
1937 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) 1765 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1938 for $self->{beg} .. $self->{end}; 1766 for $self->{beg} .. $self->{end};
1939 } 1767 }
1940 1768
1941 if (defined wantarray) { 1769 if (defined wantarray) {
1942 my $rend = [ 1770 my $rend = [
1943 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1771 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
1944 ]; 1772 ];

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