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Revision 1.194 by sf-exg, Wed Jun 29 21:59:36 2011 UTC vs.
Revision 1.222 by root, Sat Jul 7 07:00:17 2012 UTC

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 @@RXVT_NAME@@d, 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<@@RXVT_LIBDIR@@/urxvt/perl/>, and the documentation can be viewed
38using F<< 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 @@RXVT_NAME@@ -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 from the keyboard.
265Simply bind a keysym to "perl:matcher" as seen in the example below.
266
267Example configuration:
268
269 URxvt.perl-ext: default,matcher
270 URxvt.urlLauncher: sensible-browser
271 URxvt.keysym.C-Delete: perl:matcher
272 URxvt.matcher.button: 1
273 URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
274 URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
275 URxvt.matcher.launcher.2: gvim +$2 $1
276
277=item xim-onthespot
278
279This (experimental) perl extension implements OnTheSpot editing. It does
280not work perfectly, and some input methods don't seem to work well with
281OnTheSpot editing in general, but it seems to work at least for SCIM and
282kinput2.
283
284You enable it by specifying this extension and a preedit style of
285C<OnTheSpot>, i.e.:
286
287 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
288
289=item kuake<hotkey>
290
291A very primitive quake-console-like extension. It was inspired by a
292description of how the programs C<kuake> and C<yakuake> work: Whenever the
293user presses a global accelerator key (by default C<F10>), the terminal
294will show or hide itself. Another press of the accelerator key will hide
295or show it again.
296
297Initially, the window will not be shown when using this extension.
298
299This is useful if you need a single terminal that is not using any desktop
300space most of the time but is quickly available at the press of a key.
301
302The accelerator key is grabbed regardless of any modifiers, so this
303extension will actually grab a physical key just for this function.
304
305If you want a quake-like animation, tell your window manager to do so
306(fvwm can do it).
307
308=item overlay-osc
309
310This extension implements some OSC commands to display timed popups on the
311screen - useful for status displays from within scripts. You have to read
312the sources for more info.
313
314=item block-graphics-to-ascii
315
316A not very useful example of filtering all text output to the terminal
317by replacing all line-drawing characters (U+2500 .. U+259F) by a
318similar-looking ascii character.
319
320=item digital-clock
321
322Displays a digital clock using the built-in overlay.
323
324=item remote-clipboard
325
326Somewhat of a misnomer, this extension adds two menu entries to the
327selection popup that allows one to run external commands to store the
328selection somewhere and fetch it again.
329
330We use it to implement a "distributed selection mechanism", which just
331means that one command uploads the file to a remote server, and another
332reads it.
333
334The commands can be set using the C<URxvt.remote-selection.store> and
335C<URxvt.remote-selection.fetch> resources. The first should read the
336selection to store from STDIN (always in UTF-8), the second should provide
337the selection data on STDOUT (also in UTF-8).
338
339The defaults (which are likely useless to you) use rsh and cat:
340
341 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
342 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
343
344=item selection-pastebin
345
346This is a little rarely useful extension that uploads the selection as
347textfile to a remote site (or does other things). (The implementation is
348not currently secure for use in a multiuser environment as it writes to
349F</tmp> directly.).
350
351It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
352i.e.
353
354 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
355
356Pressing this combination runs a command with C<%> replaced by the name of
357the textfile. This command can be set via a resource:
358
359 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
360
361And the default is likely not useful to anybody but the few people around
362here :)
363
364The name of the textfile is the hex encoded md5 sum of the selection, so
365the same content should lead to the same filename.
366
367After a successful upload the selection will be replaced by the text given
368in the C<selection-pastebin-url> resource (again, the % is the placeholder
369for the filename):
370
371 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
372
373I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
374the double C</> characters as comment start. Use C<\057\057> instead,
375which works regardless of whether xrdb is used to parse the resource file
376or not.
377
378=item macosx-clipboard and macosx-clipboard-native
379
380These two modules implement an extended clipboard for Mac OS X. They are
381used like this:
382
383 URxvt.perl-ext-common: default,macosx-clipboard
384 URxvt.keysym.M-c: perl:macosx-clipboard:copy
385 URxvt.keysym.M-v: perl:macosx-clipboard:paste
386
387The difference between them is that the native variant requires a
388perl from apple's devkit or so, and C<macosx-clipboard> requires the
389C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
390simpler etc. etc.
391
392=item example-refresh-hooks
393
394Displays a very simple digital clock in the upper right corner of the
395window. Illustrates overwriting the refresh callbacks to create your own
396overlays or changes.
397
398=item confirm-paste
399
400Displays a confirmation dialog when a paste containing at least a full
401line is detected.
402
403=back
404 50
405=head1 API DOCUMENTATION 51=head1 API DOCUMENTATION
406 52
407=head2 General API Considerations 53=head2 General API Considerations
408 54
435 81
436=item $octets 82=item $octets
437 83
438Either binary data or - more common - a text string encoded in a 84Either binary data or - more common - a text string encoded in a
439locale-specific way. 85locale-specific way.
86
87=item $keysym
88
89an integer that is a valid X11 keysym code. You can convert a string
90into a keysym and viceversa by using C<XStringToKeysym> and
91C<XKeysymToString>.
440 92
441=back 93=back
442 94
443=head2 Extension Objects 95=head2 Extension Objects
444 96
451internal use. 103internal use.
452 104
453Although 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
454C<urxvt::term> class on this object. 106C<urxvt::term> class on this object.
455 107
456It has the following methods and data members: 108Additional methods only supported for extension objects are described in
457 109the C<urxvt::extension> section below.
458=over 4
459
460=item $urxvt_term = $self->{term}
461
462Returns the C<urxvt::term> object associated with this instance of the
463extension. This member I<must not> be changed in any way.
464
465=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
466
467Dynamically enable the given hooks (named without the C<on_> prefix) for
468this extension, replacing any previous hook. This is useful when you want
469to overwrite time-critical hooks only temporarily.
470
471=item $self->disable ($hook_name[, $hook_name..])
472
473Dynamically disable the given hooks.
474
475=back
476 110
477=head2 Hooks 111=head2 Hooks
478 112
479The following subroutines can be declared in extension files, and will be 113The following subroutines can be declared in extension files, and will be
480called whenever the relevant event happens. 114called whenever the relevant event happens.
656resource in the @@RXVT_NAME@@(1) manpage). 290resource in the @@RXVT_NAME@@(1) manpage).
657 291
658The event is simply the action string. This interface is assumed to change 292The event is simply the action string. This interface is assumed to change
659slightly in the future. 293slightly in the future.
660 294
295=item on_register_command $term, $keysym, $modifiermask, $string
296
297Called after parsing a keysym resource but before registering the
298associated binding. If this hook returns TRUE the binding is not
299registered. It can be used to modify a binding by calling
300C<register_command>.
301
661=item on_resize_all_windows $term, $new_width, $new_height 302=item on_resize_all_windows $term, $new_width, $new_height
662 303
663Called just after the new window size has been calculated, but before 304Called just after the new window size has been calculated, but before
664windows are actually being resized or hints are being set. If this hook 305windows are actually being resized or hints are being set. If this hook
665returns TRUE, setting of the window hints is being skipped. 306returns TRUE, setting of the window hints is being skipped.
732=cut 373=cut
733 374
734package urxvt; 375package urxvt;
735 376
736use utf8; 377use utf8;
737use strict; 378use strict 'vars';
738use Carp (); 379use Carp ();
739use Scalar::Util (); 380use Scalar::Util ();
740use List::Util (); 381use List::Util ();
741 382
742our $VERSION = 1; 383our $VERSION = 1;
743our $TERM; 384our $TERM;
744our @TERM_INIT; 385our @TERM_INIT; # should go, prevents async I/O etc.
745our @TERM_EXT; 386our @TERM_EXT; # should go, prevents async I/O etc.
746our @HOOKNAME; 387our @HOOKNAME;
747our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 388our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
748our %OPTION; 389our %OPTION;
749 390
750our $LIBDIR; 391our $LIBDIR;
920 }; 561 };
921} 562}
922 563
923no warnings 'utf8'; 564no warnings 'utf8';
924 565
566sub parse_resource {
567 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
568
569 $name =~ y/-/./ if $isarg;
570
571 $term->scan_meta;
572
573 my $r = $term->{meta}{resource};
574 keys %$r; # reste iterator
575 while (my ($pattern, $v) = each %$r) {
576 if (
577 $pattern =~ /\.$/
578 ? $pattern eq substr $name, 0, length $pattern
579 : $pattern eq $name
580 ) {
581 $name = "$urxvt::RESCLASS.$name";
582
583 push @{ $term->{perl_ext_3} }, $v->[0];
584
585 if ($v->[1] eq "boolean") {
586 $term->put_option_db ($name, $flag ? "true" : "false");
587 return 1;
588 } else {
589 $term->put_option_db ($name, $value);
590 return 1 + 2;
591 }
592 }
593 }
594
595 0
596}
597
598sub usage {
599 my ($term, $usage_type) = @_;
600
601 $term->scan_meta;
602
603 my $r = $term->{meta}{resource};
604
605 for my $pattern (sort keys %$r) {
606 my ($ext, $type, $desc) = @{ $r->{$pattern} };
607
608 $desc .= " (-pe $ext)";
609
610 if ($usage_type == 1) {
611 $pattern =~ y/./-/;
612 $pattern =~ s/-$/-.../g;
613
614 if ($type eq "boolean") {
615 urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
616 } else {
617 urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
618 }
619 } else {
620 $pattern =~ s/\.$/.*/g;
621 urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
622 }
623 }
624}
625
925my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 626my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
926 627
927sub verbose { 628sub verbose {
928 my ($level, $msg) = @_; 629 my ($level, $msg) = @_;
929 warn "$msg\n" if $level <= $verbosity; 630 warn "$msg\n" if $level <= $verbosity;
941 $pkg =~ s/[^[:word:]]/_/g; 642 $pkg =~ s/[^[:word:]]/_/g;
942 $pkg = "urxvt::ext::$pkg"; 643 $pkg = "urxvt::ext::$pkg";
943 644
944 verbose 3, "loading extension '$path' into package '$pkg'"; 645 verbose 3, "loading extension '$path' into package '$pkg'";
945 646
647 (${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
648
946 open my $fh, "<:raw", $path 649 open my $fh, "<:raw", $path
947 or die "$path: $!"; 650 or die "$path: $!";
948 651
949 my $source = 652 my $source =
950 "package $pkg; use strict; use utf8; no warnings 'utf8';\n" 653 "package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
951 . "#line 1 \"$path\"\n{\n" 654 . "#line 1 \"$path\"\n{\n"
952 . (do { local $/; <$fh> }) 655 . (do { local $/; <$fh> })
953 . "\n};\n1"; 656 . "\n};\n1";
954 657
955 eval $source 658 eval $source
965sub invoke { 668sub invoke {
966 local $TERM = shift; 669 local $TERM = shift;
967 my $htype = shift; 670 my $htype = shift;
968 671
969 if ($htype == 0) { # INIT 672 if ($htype == 0) { # INIT
970 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 673 my @dirs = $TERM->perl_libdirs;
971 674
972 my %ext_arg; 675 my %ext_arg;
973 676
974 { 677 {
975 my @init = @TERM_INIT; 678 my @init = @TERM_INIT;
978 my @pkg = @TERM_EXT; 681 my @pkg = @TERM_EXT;
979 @TERM_EXT = (); 682 @TERM_EXT = ();
980 $TERM->register_package ($_) for @pkg; 683 $TERM->register_package ($_) for @pkg;
981 } 684 }
982 685
686 for (
687 @{ delete $TERM->{perl_ext_3} },
983 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 688 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
689 ) {
984 if ($_ eq "default") { 690 if ($_ eq "default") {
985 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 691 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
986 } elsif (/^-(.*)$/) { 692 } elsif (/^-(.*)$/) {
987 delete $ext_arg{$1}; 693 delete $ext_arg{$1};
988 } elsif (/^([^<]+)<(.*)>$/) { 694 } elsif (/^([^<]+)<(.*)>$/) {
1011 if (my $cb = $TERM->{_hook}[$htype]) { 717 if (my $cb = $TERM->{_hook}[$htype]) {
1012 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 718 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
1013 if $verbosity >= 10; 719 if $verbosity >= 10;
1014 720
1015 for my $pkg (keys %$cb) { 721 for my $pkg (keys %$cb) {
1016 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) }; 722 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
1017 $retval ||= $retval_; 723 $retval ||= $retval_;
1018 724
1019 if ($@) { 725 if ($@) {
1020 $TERM->ungrab; # better to lose the grab than the session 726 $TERM->ungrab; # better to lose the grab than the session
1021 warn $@; 727 warn $@;
1064 } 770 }
1065 } 771 }
1066 ($mask, @color{qw(fg bg)}, \@failed) 772 ($mask, @color{qw(fg bg)}, \@failed)
1067} 773}
1068 774
1069# urxvt::term::extension
1070
1071package urxvt::term::extension; 775package urxvt::term::extension;
1072 776
1073sub enable { 777=head2 The C<urxvt::term::extension> class
1074 my ($self, %hook) = @_;
1075 my $pkg = $self->{_pkg};
1076 778
1077 while (my ($name, $cb) = each %hook) { 779Each extension attached to a terminal object is represented by
1078 my $htype = $HOOKTYPE{uc $name}; 780a C<urxvt::term::extension> object.
1079 defined $htype
1080 or Carp::croak "unsupported hook type '$name'";
1081 781
1082 $self->set_should_invoke ($htype, +1) 782You can use these objects, which are passed to all callbacks to store any
1083 unless exists $self->{term}{_hook}[$htype]{$pkg}; 783state related to the terminal and extension instance.
1084 784
1085 $self->{term}{_hook}[$htype]{$pkg} = $cb; 785The methods (And data members) documented below can be called on extension
1086 } 786objects, in addition to call methods documented for the <urxvt::term>
1087} 787class.
1088 788
1089sub disable { 789=over 4
1090 my ($self, @hook) = @_;
1091 my $pkg = $self->{_pkg};
1092 790
1093 for my $name (@hook) { 791=item $urxvt_term = $self->{term}
1094 my $htype = $HOOKTYPE{uc $name};
1095 defined $htype
1096 or Carp::croak "unsupported hook type '$name'";
1097 792
1098 $self->set_should_invoke ($htype, -1) 793Returns the C<urxvt::term> object associated with this instance of the
1099 if delete $self->{term}{_hook}[$htype]{$pkg}; 794extension. This member I<must not> be changed in any way.
1100 } 795
1101} 796=cut
1102 797
1103our $AUTOLOAD; 798our $AUTOLOAD;
1104 799
1105sub AUTOLOAD { 800sub AUTOLOAD {
1106 $AUTOLOAD =~ /:([^:]+)$/ 801 $AUTOLOAD =~ /:([^:]+)$/
1119 814
1120sub DESTROY { 815sub DESTROY {
1121 # nop 816 # nop
1122} 817}
1123 818
1124# urxvt::destroy_hook 819# urxvt::destroy_hook (basically a cheap Guard:: implementation)
1125 820
1126sub urxvt::destroy_hook::DESTROY { 821sub urxvt::destroy_hook::DESTROY {
1127 ${$_[0]}->(); 822 ${$_[0]}->();
1128} 823}
1129 824
1130sub urxvt::destroy_hook(&) { 825sub urxvt::destroy_hook(&) {
1131 bless \shift, urxvt::destroy_hook:: 826 bless \shift, urxvt::destroy_hook::
1132} 827}
828
829=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
830
831Dynamically enable the given hooks (named without the C<on_> prefix) for
832this extension, replacing any previous hook. This is useful when you want
833to overwrite time-critical hooks only temporarily.
834
835To install additional callbacks for the same hook, you can use the C<on>
836method of the C<urxvt::term> class.
837
838=item $self->disable ($hook_name[, $hook_name..])
839
840Dynamically disable the given hooks.
841
842=cut
843
844sub enable {
845 my ($self, %hook) = @_;
846 my $pkg = $self->{_pkg};
847
848 while (my ($name, $cb) = each %hook) {
849 my $htype = $HOOKTYPE{uc $name};
850 defined $htype
851 or Carp::croak "unsupported hook type '$name'";
852
853 $self->set_should_invoke ($htype, +1)
854 unless exists $self->{term}{_hook}[$htype]{$pkg};
855
856 $self->{term}{_hook}[$htype]{$pkg} = $cb;
857 }
858}
859
860sub disable {
861 my ($self, @hook) = @_;
862 my $pkg = $self->{_pkg};
863
864 for my $name (@hook) {
865 my $htype = $HOOKTYPE{uc $name};
866 defined $htype
867 or Carp::croak "unsupported hook type '$name'";
868
869 $self->set_should_invoke ($htype, -1)
870 if delete $self->{term}{_hook}[$htype]{$pkg};
871 }
872}
873
874=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
875
876Similar to the C<enable> enable, but installs additional callbacks for
877the given hook(s) (that is, it doesn't replace existing callbacks), and
878returns a guard object. When the guard object is destroyed the callbacks
879are disabled again.
880
881=cut
882
883sub urxvt::extension::on_disable::DESTROY {
884 my $disable = shift;
885
886 my $self = delete $disable->{""};
887
888 while (my ($htype, $id) = each %$disable) {
889 delete $self->{_hook}[$htype]{$id};
890 $self->set_should_invoke ($htype, -1);
891 }
892}
893
894sub on {
895 my ($self, %hook) = @_;
896
897 my %disable = ( "" => $self );
898
899 while (my ($name, $cb) = each %hook) {
900 my $htype = $HOOKTYPE{uc $name};
901 defined $htype
902 or Carp::croak "unsupported hook type '$name'";
903
904 my $id = $cb+0;
905
906 $self->set_should_invoke ($htype, +1);
907 $disable{$htype} = $id;
908 $self->{_hook}[$htype]{$id} = sub { shift; $cb->($self, @_) }; # very ugly indeed
909 }
910
911 bless \%disable, "urxvt::extension::on_disable"
912}
913
914=item $self->x_resource ($pattern)
915
916=item $self->x_resource_boolean ($pattern)
917
918These methods support an additional C<%> prefix when called on an
919extension object - see the description of these methods in the
920C<urxvt::term> class for details.
921
922=cut
923
924sub x_resource {
925 my ($self, $name) = @_;
926 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
927 $self->{term}->x_resource ($name)
928}
929
930sub x_resource_boolean {
931 my ($self, $name) = @_;
932 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
933 $self->{term}->x_resource_boolean ($name)
934}
935
936=back
937
938=cut
1133 939
1134package urxvt::anyevent; 940package urxvt::anyevent;
1135 941
1136=head2 The C<urxvt::anyevent> Class 942=head2 The C<urxvt::anyevent> Class
1137 943
1138The sole purpose of this class is to deliver an interface to the 944The sole purpose of this class is to deliver an interface to the
1139C<AnyEvent> module - any module using it will work inside urxvt without 945C<AnyEvent> module - any module using it will work inside urxvt without
1140further programming. The only exception is that you cannot wait on 946further programming. The only exception is that you cannot wait on
1141condition variables, but non-blocking condvar use is ok. What this means 947condition variables, but non-blocking condvar use is ok.
1142is that you cannot use blocking APIs, but the non-blocking variant should 948
1143work. 949In practical terms this means is that you cannot use blocking APIs, but
950the non-blocking variant should work.
1144 951
1145=cut 952=cut
1146 953
1147our $VERSION = '5.23'; 954our $VERSION = '5.23';
1148 955
1207 1014
1208sub DESTROY { 1015sub DESTROY {
1209 $_[0][1]->stop; 1016 $_[0][1]->stop;
1210} 1017}
1211 1018
1019# only needed for AnyEvent < 6 compatibility
1212sub one_event { 1020sub one_event {
1213 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API"; 1021 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
1214} 1022}
1215 1023
1216package urxvt::term; 1024package urxvt::term;
1231 urxvt::verbose 6, "register package $pkg to $self"; 1039 urxvt::verbose 6, "register package $pkg to $self";
1232 1040
1233 @{"$pkg\::ISA"} = urxvt::term::extension::; 1041 @{"$pkg\::ISA"} = urxvt::term::extension::;
1234 1042
1235 my $proxy = bless { 1043 my $proxy = bless {
1236 _pkg => $pkg, 1044 _pkg => $pkg,
1045 _name => ${"$pkg\::_NAME"}, # hackish
1237 argv => $argv, 1046 argv => $argv,
1238 }, $pkg; 1047 }, $pkg;
1239 Scalar::Util::weaken ($proxy->{term} = $self); 1048 Scalar::Util::weaken ($proxy->{term} = $self);
1240 1049
1241 $self->{_pkg}{$pkg} = $proxy; 1050 $self->{_pkg}{$pkg} = $proxy;
1242 1051
1245 $proxy->enable ($name => $ref); 1054 $proxy->enable ($name => $ref);
1246 } 1055 }
1247 } 1056 }
1248} 1057}
1249 1058
1059sub perl_libdirs {
1060 map { split /:/ }
1061 $_[0]->resource ("perl_lib"),
1062 $ENV{URXVT_PERL_LIB},
1063 "$ENV{HOME}/.urxvt/ext",
1064 "$LIBDIR/perl"
1065}
1066
1067sub scan_meta {
1068 my ($self) = @_;
1069 my @libdirs = perl_libdirs $self;
1070
1071 return if $self->{meta_libdirs} eq join "\x00", @libdirs;
1072
1073 my %meta;
1074
1075 $self->{meta_libdirs} = join "\x00", @libdirs;
1076 $self->{meta} = \%meta;
1077
1078 for my $dir (reverse @libdirs) {
1079 opendir my $fh, $dir
1080 or next;
1081 for my $ext (readdir $fh) {
1082 $ext ne "."
1083 and $ext ne ".."
1084 and open my $fh, "<", "$dir/$ext"
1085 or next;
1086
1087 while (<$fh>) {
1088 if (/^#:META:X_RESOURCE:(.*)/) {
1089 my ($pattern, $type, $desc) = split /:/, $1;
1090 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1091 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1092 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1093 } else {
1094 $meta{resource}{$pattern} = [$ext, $type, $desc];
1095 }
1096 } elsif (/^\s*(?:#|$)/) {
1097 # skip other comments and empty lines
1098 } else {
1099 last; # stop parsing on first non-empty non-comment line
1100 }
1101 }
1102 }
1103 }
1104}
1105
1250=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1106=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1251 1107
1252Creates a new terminal, very similar as if you had started it with system 1108Creates a new terminal, very similar as if you had started it with system
1253C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like 1109C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1254hash which defines the environment of the new terminal. 1110hash which defines the environment of the new terminal.
1308C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1164C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
1309 1165
1310Here is a likely non-exhaustive list of option names, please see the 1166Here is a likely non-exhaustive list of option names, please see the
1311source file F</src/optinc.h> to see the actual list: 1167source file F</src/optinc.h> to see the actual list:
1312 1168
1313 borderLess console cursorBlink cursorUnderline hold iconic insecure 1169 borderLess buffered console cursorBlink cursorUnderline hold iconic
1314 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1170 insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
1315 override-redirect pastableTabs pointerBlank reverseVideo scrollBar 1171 mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
1316 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput 1172 pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
1317 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs 1173 scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
1318 transparent tripleclickwords utmpInhibit visualBell 1174 secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
1175 urgentOnBell utmpInhibit visualBell
1319 1176
1320=item $value = $term->resource ($name[, $newval]) 1177=item $value = $term->resource ($name[, $newval])
1321 1178
1322Returns the current resource value associated with a given name and 1179Returns the current resource value associated with a given name and
1323optionally sets a new value. Setting values is most useful in the C<init> 1180optionally sets a new value. Setting values is most useful in the C<init>
1336 1193
1337Here is a likely non-exhaustive list of resource names, not all of which 1194Here is a likely non-exhaustive list of resource names, not all of which
1338are supported in every build, please see the source file F</src/rsinc.h> 1195are supported in every build, please see the source file F</src/rsinc.h>
1339to see the actual list: 1196to see the actual list:
1340 1197
1341 answerbackstring backgroundPixmap backspace_key blendtype blurradius 1198 answerbackstring backgroundPixmap backspace_key blurradius
1342 boldFont boldItalicFont borderLess buffered chdir color cursorBlink 1199 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
1343 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth 1200 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
1344 fade font geometry hold iconName iconfile imFont imLocale inputMethod 1201 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1345 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont 1202 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
1346 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier 1203 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
1366Returns the X-Resource for the given pattern, excluding the program or 1223Returns the X-Resource for the given pattern, excluding the program or
1367class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1224class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1368same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1225same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1369resource with that pattern exists. 1226resource with that pattern exists.
1370 1227
1228Extensions that define extra resource or command line arguments also need
1229to call this method to access their values.
1230
1231If the method is called on an extension object (basically, from an
1232extension), then the special prefix C<%.> will be replaced by the name of
1233the extension and a dot, and the lone string C<%> will be replaced by the
1234extension name itself. This makes it possible to code extensions so you
1235can rename them and get a new set of commandline switches and resources
1236without having to change the actual code.
1237
1371This method should only be called during the C<on_start> hook, as there is 1238This method should only be called during the C<on_start> hook, as there is
1372only one resource database per display, and later invocations might return 1239only one resource database per display, and later invocations might return
1373the wrong resources. 1240the wrong resources.
1374 1241
1375=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1242=item $value = $term->x_resource_boolean ($pattern)
1376 1243
1244Like C<x_resource>, above, but interprets the string value as a boolean
1245and returns C<1> for true values, C<0> for false values and C<undef> if
1246the resource or option isn't specified.
1247
1248You should always use this method to parse boolean resources.
1249
1250=cut
1251
1252sub x_resource_boolean {
1253 my $res = &x_resource;
1254
1255 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1256}
1257
1258=item $success = $term->parse_keysym ($key, $octets)
1259
1377Adds a keymap translation exactly as specified via a resource. See the 1260Adds a key binding exactly as specified via a resource. See the
1378C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1261C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1262
1263=item $term->register_command ($keysym, $modifiermask, $string)
1264
1265Adds a key binding. This is a lower level api compared to
1266C<parse_keysym>, as it expects a parsed key description, and can be
1267used only inside either the C<on_init> hook, to add a binding, or the
1268C<on_register_command> hook, to modify a parsed binding.
1379 1269
1380=item $rend = $term->rstyle ([$new_rstyle]) 1270=item $rend = $term->rstyle ([$new_rstyle])
1381 1271
1382Return and optionally change the current rendition. Text that is output by 1272Return and optionally change the current rendition. Text that is output by
1383the terminal application will use this style. 1273the terminal application will use this style.
1596 1486
1597Adds the specified events to the vt event mask. Useful e.g. when you want 1487Adds the specified events to the vt event mask. Useful e.g. when you want
1598to receive pointer events all the times: 1488to receive pointer events all the times:
1599 1489
1600 $term->vt_emask_add (urxvt::PointerMotionMask); 1490 $term->vt_emask_add (urxvt::PointerMotionMask);
1491
1492=item $term->set_urgency ($set)
1493
1494Enable/disable the urgency hint on the toplevel window.
1601 1495
1602=item $term->focus_in 1496=item $term->focus_in
1603 1497
1604=item $term->focus_out 1498=item $term->focus_out
1605 1499
1921=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height) 1815=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1922 1816
1923=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y) 1817=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1924 1818
1925=item $term->XChangeInput ($window, $add_events[, $del_events]) 1819=item $term->XChangeInput ($window, $add_events[, $del_events])
1820
1821=item $keysym = $term->XStringToKeysym ($string)
1822
1823=item $string = $term->XKeysymToString ($keysym)
1926 1824
1927Various X or X-related functions. The C<$term> object only serves as 1825Various X or X-related functions. The C<$term> object only serves as
1928the source of the display, otherwise those functions map more-or-less 1826the source of the display, otherwise those functions map more-or-less
1929directly onto the X functions of the same name. 1827directly onto the X functions of the same name.
1930 1828

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