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Revision 1.207 by root, Tue Jun 5 21:29:52 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 perl_libdirs {
949 map { split /:/ }
950 $_[0]->resource ("perl_lib"),
951 $ENV{URXVT_PERL_LIB},
952 "$ENV{HOME}/.urxvt/ext",
953 "$LIBDIR/perl"
954}
955
956our %META; # meta header information from scripts
957our %SCAN; # which dirs already scanned
958
959sub resource { 557sub parse_resource {
960 my ($term, $name, $isarg, $flag, $value) = @_; 558 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
961 559
962 for my $dir (perl_libdirs $term) { 560 $name =~ y/-/./ if $isarg;
561
562 $term->scan_extensions;
563
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, $value);
581 return 1 + 2;
582 }
583 }
963 } 584 }
964 585
965 warn "resourece<@_>\n";#d#
966
967 0 586 0
587}
588
589sub usage {
590 my ($term, $usage_type) = @_;
591
592 $term->scan_extensions;
593
594 my $r = $term->{meta}{resource};
595
596 for my $pattern (sort keys %$r) {
597 my ($ext, $type, $desc) = @{ $r->{$pattern} };
598
599 $desc .= " (-pe $ext)";
600
601 if ($usage_type == 1) {
602 $pattern =~ y/./-/;
603 $pattern =~ s/-$/-.../g;
604
605 if ($type eq "boolean") {
606 urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
607 } else {
608 urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
609 }
610 } else {
611 $pattern =~ s/\.$/.*/g;
612 urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
613 }
614 }
968} 615}
969 616
970my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 617my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
971 618
972sub verbose { 619sub verbose {
986 $pkg =~ s/[^[:word:]]/_/g; 633 $pkg =~ s/[^[:word:]]/_/g;
987 $pkg = "urxvt::ext::$pkg"; 634 $pkg = "urxvt::ext::$pkg";
988 635
989 verbose 3, "loading extension '$path' into package '$pkg'"; 636 verbose 3, "loading extension '$path' into package '$pkg'";
990 637
638 (${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
639
991 open my $fh, "<:raw", $path 640 open my $fh, "<:raw", $path
992 or die "$path: $!"; 641 or die "$path: $!";
993 642
994 my $source = 643 my $source =
995 "package $pkg; use strict; use utf8; no warnings 'utf8';\n" 644 "package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
996 . "#line 1 \"$path\"\n{\n" 645 . "#line 1 \"$path\"\n{\n"
997 . (do { local $/; <$fh> }) 646 . (do { local $/; <$fh> })
998 . "\n};\n1"; 647 . "\n};\n1";
999 648
1000 eval $source 649 eval $source
1009# called by the rxvt core 658# called by the rxvt core
1010sub invoke { 659sub invoke {
1011 local $TERM = shift; 660 local $TERM = shift;
1012 my $htype = shift; 661 my $htype = shift;
1013 662
1014 if ($htype == 0) { # INIT 663 if ($htype == HOOK_INIT) {
1015 my @dirs = perl_libdirs $TERM; 664 my @dirs = $TERM->perl_libdirs;
665
666 $TERM->scan_extensions;
1016 667
1017 my %ext_arg; 668 my %ext_arg;
1018 669
1019 { 670 {
1020 my @init = @TERM_INIT; 671 my @init = @TERM_INIT;
1023 my @pkg = @TERM_EXT; 674 my @pkg = @TERM_EXT;
1024 @TERM_EXT = (); 675 @TERM_EXT = ();
1025 $TERM->register_package ($_) for @pkg; 676 $TERM->register_package ($_) for @pkg;
1026 } 677 }
1027 678
679 for (
1028 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 680 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
681 ) {
1029 if ($_ eq "default") { 682 if ($_ eq "default") {
1030 $ext_arg{$_} ||= [] 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
1031 } elsif (/^-(.*)$/) { 700 } elsif (/^-(.*)$/) {
1032 delete $ext_arg{$1}; 701 delete $ext_arg{$1};
702
1033 } elsif (/^([^<]+)<(.*)>$/) { 703 } elsif (/^([^<]+)<(.*)>$/) {
1034 push @{ $ext_arg{$1} }, $2; 704 push @{ $ext_arg{$1} }, $2;
705
1035 } else { 706 } else {
1036 $ext_arg{$_} ||= []; 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]");
1037 } 715 }
1038 } 716 }
1039 717
1040 for my $ext (sort keys %ext_arg) { 718 for my $ext (sort keys %ext_arg) {
1041 my @files = grep -f $_, map "$_/$ext", @dirs; 719 my @files = grep -f $_, map "$_/$ext", @dirs;
1055 733
1056 if (my $cb = $TERM->{_hook}[$htype]) { 734 if (my $cb = $TERM->{_hook}[$htype]) {
1057 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 735 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
1058 if $verbosity >= 10; 736 if $verbosity >= 10;
1059 737
738 if ($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
1060 for my $pkg (keys %$cb) { 751 for my $pkg (keys %$cb) {
1061 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) }; 752 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
1062 $retval ||= $retval_; 753 $retval ||= $retval_;
1063 754
1064 if ($@) { 755 if ($@) {
1065 $TERM->ungrab; # better to lose the grab than the session 756 $TERM->ungrab; # better to lose the grab than the session
1066 warn $@; 757 warn $@;
1069 760
1070 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 761 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
1071 if $verbosity >= 11; 762 if $verbosity >= 11;
1072 } 763 }
1073 764
1074 if ($htype == 1) { # DESTROY 765 if ($htype == HOOK_DESTROY) {
1075 # clear package objects 766 # clear package objects
1076 %$_ = () for values %{ $TERM->{_pkg} }; 767 %$_ = () for values %{ $TERM->{_pkg} };
1077 768
1078 # clear package 769 # clear package
1079 %$TERM = (); 770 %$TERM = ();
1109 } 800 }
1110 } 801 }
1111 ($mask, @color{qw(fg bg)}, \@failed) 802 ($mask, @color{qw(fg bg)}, \@failed)
1112} 803}
1113 804
1114# urxvt::term::extension
1115
1116package urxvt::term::extension; 805package urxvt::term::extension;
1117 806
1118sub enable { 807=head2 The C<urxvt::term::extension> class
1119 my ($self, %hook) = @_;
1120 my $pkg = $self->{_pkg};
1121 808
1122 while (my ($name, $cb) = each %hook) { 809Each extension attached to a terminal object is represented by
1123 my $htype = $HOOKTYPE{uc $name}; 810a C<urxvt::term::extension> object.
1124 defined $htype
1125 or Carp::croak "unsupported hook type '$name'";
1126 811
1127 $self->set_should_invoke ($htype, +1) 812You can use these objects, which are passed to all callbacks to store any
1128 unless exists $self->{term}{_hook}[$htype]{$pkg}; 813state related to the terminal and extension instance.
1129 814
1130 $self->{term}{_hook}[$htype]{$pkg} = $cb; 815The methods (And data members) documented below can be called on extension
1131 } 816objects, in addition to call methods documented for the <urxvt::term>
1132} 817class.
1133 818
1134sub disable { 819=over 4
1135 my ($self, @hook) = @_;
1136 my $pkg = $self->{_pkg};
1137 820
1138 for my $name (@hook) { 821=item $urxvt_term = $self->{term}
1139 my $htype = $HOOKTYPE{uc $name};
1140 defined $htype
1141 or Carp::croak "unsupported hook type '$name'";
1142 822
1143 $self->set_should_invoke ($htype, -1) 823Returns the C<urxvt::term> object associated with this instance of the
1144 if delete $self->{term}{_hook}[$htype]{$pkg}; 824extension. This member I<must not> be changed in any way.
1145 } 825
1146} 826=cut
1147 827
1148our $AUTOLOAD; 828our $AUTOLOAD;
1149 829
1150sub AUTOLOAD { 830sub AUTOLOAD {
1151 $AUTOLOAD =~ /:([^:]+)$/ 831 $AUTOLOAD =~ /:([^:]+)$/
1164 844
1165sub DESTROY { 845sub DESTROY {
1166 # nop 846 # nop
1167} 847}
1168 848
1169# urxvt::destroy_hook 849# urxvt::destroy_hook (basically a cheap Guard:: implementation)
1170 850
1171sub urxvt::destroy_hook::DESTROY { 851sub urxvt::destroy_hook::DESTROY {
1172 ${$_[0]}->(); 852 ${$_[0]}->();
1173} 853}
1174 854
1175sub urxvt::destroy_hook(&) { 855sub urxvt::destroy_hook(&) {
1176 bless \shift, urxvt::destroy_hook:: 856 bless \shift, urxvt::destroy_hook::
1177} 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
1178 972
1179package urxvt::anyevent; 973package urxvt::anyevent;
1180 974
1181=head2 The C<urxvt::anyevent> Class 975=head2 The C<urxvt::anyevent> Class
1182 976
1183The sole purpose of this class is to deliver an interface to the 977The sole purpose of this class is to deliver an interface to the
1184C<AnyEvent> module - any module using it will work inside urxvt without 978C<AnyEvent> module - any module using it will work inside urxvt without
1185further programming. The only exception is that you cannot wait on 979further programming. The only exception is that you cannot wait on
1186condition variables, but non-blocking condvar use is ok. What this means 980condition variables, but non-blocking condvar use is ok.
1187is that you cannot use blocking APIs, but the non-blocking variant should 981
1188work. 982In practical terms this means is that you cannot use blocking APIs, but
983the non-blocking variant should work.
1189 984
1190=cut 985=cut
1191 986
1192our $VERSION = '5.23'; 987our $VERSION = '5.23';
1193 988
1277 urxvt::verbose 6, "register package $pkg to $self"; 1072 urxvt::verbose 6, "register package $pkg to $self";
1278 1073
1279 @{"$pkg\::ISA"} = urxvt::term::extension::; 1074 @{"$pkg\::ISA"} = urxvt::term::extension::;
1280 1075
1281 my $proxy = bless { 1076 my $proxy = bless {
1282 _pkg => $pkg, 1077 _pkg => $pkg,
1078 _name => ${"$pkg\::_NAME"}, # hackish
1283 argv => $argv, 1079 argv => $argv,
1284 }, $pkg; 1080 }, $pkg;
1285 Scalar::Util::weaken ($proxy->{term} = $self); 1081 Scalar::Util::weaken ($proxy->{term} = $self);
1286 1082
1287 $self->{_pkg}{$pkg} = $proxy; 1083 $self->{_pkg}{$pkg} = $proxy;
1288 1084
1291 $proxy->enable ($name => $ref); 1087 $proxy->enable ($name => $ref);
1292 } 1088 }
1293 } 1089 }
1294} 1090}
1295 1091
1092sub perl_libdirs {
1093 map { split /:/ }
1094 $_[0]->resource ("perl_lib"),
1095 $ENV{URXVT_PERL_LIB},
1096 "$ENV{HOME}/.urxvt/ext",
1097 "$LIBDIR/perl"
1098}
1099
1100# scan for available extensions and collect their metadata
1101sub scan_extensions {
1102 my ($self) = @_;
1103
1104 return if exists $self->{meta};
1105
1106 my @libdirs = perl_libdirs $self;
1107
1108# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
1109
1110# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
1111 $self->{meta} = \my %meta;
1112
1113 # first gather extensions
1114 for my $dir (reverse @libdirs) {
1115 opendir my $fh, $dir
1116 or next;
1117 for my $ext (readdir $fh) {
1118 $ext !~ /^\./
1119 and open my $fh, "<", "$dir/$ext"
1120 or next;
1121
1122 my %ext = (dir => $dir);
1123
1124 while (<$fh>) {
1125 if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
1126 my ($pattern, $type, $desc) = split /:/, $1;
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 {
1131 $ext{resource}{$pattern} = [$ext, $type, $desc];
1132 }
1133 } elsif (/^#:META:BINDING:(.*)/) {
1134 my ($keysym, $action) = split /:/, $1;
1135 $ext{binding}{$keysym} = [$ext, $action];
1136 } elsif (/^\s*(?:#|$)/) {
1137 # skip other comments and empty lines
1138 } else {
1139 last; # stop parsing on first non-empty non-comment line
1140 }
1141 }
1142
1143 $meta{ext}{$ext} = \%ext;
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} });
1152 }
1153}
1154
1296=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1155=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1297 1156
1298Creates a new terminal, very similar as if you had started it with system 1157Creates a new terminal, very similar as if you had started it with system
1299C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like 1158C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1300hash which defines the environment of the new terminal. 1159hash which defines the environment of the new terminal.
1317} 1176}
1318 1177
1319=item $term->destroy 1178=item $term->destroy
1320 1179
1321Destroy the terminal object (close the window, free resources 1180Destroy the terminal object (close the window, free resources
1322etc.). 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
1323watchers (timers, io watchers) are still active. 1182watchers (timers, io watchers) are still active.
1324 1183
1325=item $term->exec_async ($cmd[, @args]) 1184=item $term->exec_async ($cmd[, @args])
1326 1185
1327Works 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
1383 1242
1384Here 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
1385are 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>
1386to see the actual list: 1245to see the actual list:
1387 1246
1388 answerbackstring backgroundPixmap backspace_key blendtype blurradius 1247 answerbackstring backgroundPixmap backspace_key blurradius
1389 boldFont boldItalicFont borderLess buffered chdir color cursorBlink 1248 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
1390 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth 1249 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
1391 fade font geometry hold iconName iconfile imFont imLocale inputMethod 1250 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1392 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont 1251 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
1393 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier 1252 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
1413Returns the X-Resource for the given pattern, excluding the program or 1272Returns the X-Resource for the given pattern, excluding the program or
1414class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1273class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1415same 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
1416resource with that pattern exists. 1275resource with that pattern exists.
1417 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
1418This 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
1419only one resource database per display, and later invocations might return 1288only one resource database per display, and later invocations might return
1420the wrong resources. 1289the wrong resources.
1421 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
1422=item $success = $term->parse_keysym ($key, $octets) 1307=item $success = $term->bind_action ($key, $octets)
1423 1308
1424Adds 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
1425C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1310C<keysym> resource in the urxvt(1) manpage.
1426
1427=item $term->register_command ($keysym, $modifiermask, $string)
1428
1429Adds a key binding. This is a lower level api compared to
1430C<parse_keysym>, as it expects a parsed key description, and can be
1431used only inside either the C<on_init> hook, to add a binding, or the
1432C<on_register_command> hook, to modify a parsed binding.
1433 1311
1434=item $rend = $term->rstyle ([$new_rstyle]) 1312=item $rend = $term->rstyle ([$new_rstyle])
1435 1313
1436Return and optionally change the current rendition. Text that is output by 1314Return and optionally change the current rendition. Text that is output by
1437the terminal application will use this style. 1315the terminal application will use this style.
1617=item $term->tt_write ($octets) 1495=item $term->tt_write ($octets)
1618 1496
1619Write 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
1620pass characters instead of octets, you should convert your strings first 1498pass characters instead of octets, you should convert your strings first
1621to 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.
1622 1508
1623=item $term->tt_paste ($octets) 1509=item $term->tt_paste ($octets)
1624 1510
1625Write 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
1626CR and bracketing the data with control sequences if bracketed paste mode 1512CR and bracketing the data with control sequences if bracketed paste mode
1860} 1746}
1861 1747
1862sub urxvt::line::t { 1748sub urxvt::line::t {
1863 my ($self) = @_; 1749 my ($self) = @_;
1864 1750
1865 if (@_ > 1) 1751 if (@_ > 1) {
1866 {
1867 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) 1752 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1868 for $self->{beg} .. $self->{end}; 1753 for $self->{beg} .. $self->{end};
1869 } 1754 }
1870 1755
1871 defined wantarray && 1756 defined wantarray &&
1872 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1757 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
1873 0, $self->{len} 1758 0, $self->{len}
1874} 1759}
1875 1760
1876sub urxvt::line::r { 1761sub urxvt::line::r {
1877 my ($self) = @_; 1762 my ($self) = @_;
1878 1763
1879 if (@_ > 1) 1764 if (@_ > 1) {
1880 {
1881 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) 1765 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1882 for $self->{beg} .. $self->{end}; 1766 for $self->{beg} .. $self->{end};
1883 } 1767 }
1884 1768
1885 if (defined wantarray) { 1769 if (defined wantarray) {
1886 my $rend = [ 1770 my $rend = [
1887 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1771 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
1888 ]; 1772 ];

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