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Revision 1.201 by sf-exg, Tue Nov 29 19:20:18 2011 UTC vs.
Revision 1.219 by sf-exg, Sun Jun 10 18:23:18 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 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
445 81
446=item $octets 82=item $octets
447 83
448Either binary data or - more common - a text string encoded in a 84Either binary data or - more common - a text string encoded in a
449locale-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>.
450 92
451=back 93=back
452 94
453=head2 Extension Objects 95=head2 Extension Objects
454 96
666resource in the @@RXVT_NAME@@(1) manpage). 308resource in the @@RXVT_NAME@@(1) manpage).
667 309
668The event is simply the action string. This interface is assumed to change 310The event is simply the action string. This interface is assumed to change
669slightly in the future. 311slightly in the future.
670 312
313=item on_register_command $term, $keysym, $modifiermask, $string
314
315Called after parsing a keysym resource but before registering the
316associated binding. If this hook returns TRUE the binding is not
317registered. It can be used to modify a binding by calling
318C<register_command>.
319
671=item on_resize_all_windows $term, $new_width, $new_height 320=item on_resize_all_windows $term, $new_width, $new_height
672 321
673Called just after the new window size has been calculated, but before 322Called just after the new window size has been calculated, but before
674windows are actually being resized or hints are being set. If this hook 323windows are actually being resized or hints are being set. If this hook
675returns TRUE, setting of the window hints is being skipped. 324returns TRUE, setting of the window hints is being skipped.
742=cut 391=cut
743 392
744package urxvt; 393package urxvt;
745 394
746use utf8; 395use utf8;
747use strict; 396use strict 'vars';
748use Carp (); 397use Carp ();
749use Scalar::Util (); 398use Scalar::Util ();
750use List::Util (); 399use List::Util ();
751 400
752our $VERSION = 1; 401our $VERSION = 1;
753our $TERM; 402our $TERM;
754our @TERM_INIT; 403our @TERM_INIT; # should go, prevents async I/O etc.
755our @TERM_EXT; 404our @TERM_EXT; # should go, prevents async I/O etc.
756our @HOOKNAME; 405our @HOOKNAME;
757our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 406our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
758our %OPTION; 407our %OPTION;
759 408
760our $LIBDIR; 409our $LIBDIR;
930 }; 579 };
931} 580}
932 581
933no warnings 'utf8'; 582no warnings 'utf8';
934 583
584sub parse_resource {
585 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
586
587 $name =~ y/-/./ if $isarg;
588
589 $term->scan_meta;
590
591 my $r = $term->{meta}{resource};
592 keys %$r; # reste iterator
593 while (my ($pattern, $v) = each %$r) {
594 if (
595 $pattern =~ /\.$/
596 ? $pattern eq substr $name, 0, length $pattern
597 : $pattern eq $name
598 ) {
599 $name = "$urxvt::RESCLASS.$name";
600
601 push @{ $term->{perl_ext_3} }, $v->[0];
602
603 if ($v->[1] eq "boolean") {
604 $term->put_option_db ($name, $flag ? "true" : "false");
605 return 1;
606 } else {
607 $term->put_option_db ($name, $value);
608 return 1 + 2;
609 }
610 }
611 }
612
613 0
614}
615
616sub usage {
617 my ($term, $usage_type) = @_;
618
619 $term->scan_meta;
620
621 my $r = $term->{meta}{resource};
622
623 for my $pattern (sort keys %$r) {
624 my ($ext, $type, $desc) = @{ $r->{$pattern} };
625
626 $desc .= " (-pe $ext)";
627
628 if ($usage_type == 1) {
629 $pattern =~ y/./-/;
630 $pattern =~ s/-$/-.../g;
631
632 if ($type eq "boolean") {
633 urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
634 } else {
635 urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
636 }
637 } else {
638 $pattern =~ s/\.$/.*/g;
639 urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
640 }
641 }
642}
643
935my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 644my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
936 645
937sub verbose { 646sub verbose {
938 my ($level, $msg) = @_; 647 my ($level, $msg) = @_;
939 warn "$msg\n" if $level <= $verbosity; 648 warn "$msg\n" if $level <= $verbosity;
951 $pkg =~ s/[^[:word:]]/_/g; 660 $pkg =~ s/[^[:word:]]/_/g;
952 $pkg = "urxvt::ext::$pkg"; 661 $pkg = "urxvt::ext::$pkg";
953 662
954 verbose 3, "loading extension '$path' into package '$pkg'"; 663 verbose 3, "loading extension '$path' into package '$pkg'";
955 664
665 (${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
666
956 open my $fh, "<:raw", $path 667 open my $fh, "<:raw", $path
957 or die "$path: $!"; 668 or die "$path: $!";
958 669
959 my $source = 670 my $source =
960 "package $pkg; use strict; use utf8; no warnings 'utf8';\n" 671 "package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
961 . "#line 1 \"$path\"\n{\n" 672 . "#line 1 \"$path\"\n{\n"
962 . (do { local $/; <$fh> }) 673 . (do { local $/; <$fh> })
963 . "\n};\n1"; 674 . "\n};\n1";
964 675
965 eval $source 676 eval $source
975sub invoke { 686sub invoke {
976 local $TERM = shift; 687 local $TERM = shift;
977 my $htype = shift; 688 my $htype = shift;
978 689
979 if ($htype == 0) { # INIT 690 if ($htype == 0) { # INIT
980 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$ENV{HOME}/.urxvt/ext", "$LIBDIR/perl"); 691 my @dirs = $TERM->perl_libdirs;
981 692
982 my %ext_arg; 693 my %ext_arg;
983 694
984 { 695 {
985 my @init = @TERM_INIT; 696 my @init = @TERM_INIT;
988 my @pkg = @TERM_EXT; 699 my @pkg = @TERM_EXT;
989 @TERM_EXT = (); 700 @TERM_EXT = ();
990 $TERM->register_package ($_) for @pkg; 701 $TERM->register_package ($_) for @pkg;
991 } 702 }
992 703
704 for (
705 @{ delete $TERM->{perl_ext_3} },
993 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 706 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
707 ) {
994 if ($_ eq "default") { 708 if ($_ eq "default") {
995 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 709 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
996 } elsif (/^-(.*)$/) { 710 } elsif (/^-(.*)$/) {
997 delete $ext_arg{$1}; 711 delete $ext_arg{$1};
998 } elsif (/^([^<]+)<(.*)>$/) { 712 } elsif (/^([^<]+)<(.*)>$/) {
1074 } 788 }
1075 } 789 }
1076 ($mask, @color{qw(fg bg)}, \@failed) 790 ($mask, @color{qw(fg bg)}, \@failed)
1077} 791}
1078 792
1079# urxvt::term::extension
1080
1081package urxvt::term::extension; 793package urxvt::term::extension;
1082 794
1083sub enable { 795sub enable {
1084 my ($self, %hook) = @_; 796 my ($self, %hook) = @_;
1085 my $pkg = $self->{_pkg}; 797 my $pkg = $self->{_pkg};
1139 851
1140sub urxvt::destroy_hook(&) { 852sub urxvt::destroy_hook(&) {
1141 bless \shift, urxvt::destroy_hook:: 853 bless \shift, urxvt::destroy_hook::
1142} 854}
1143 855
856sub x_resource {
857 my ($self, $name) = @_;
858 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
859 $self->{term}->x_resource ($name)
860}
861
862sub x_resource_boolean {
863 my ($self, $name) = @_;
864 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
865 $self->{term}->x_resource_boolean ($name)
866}
867
1144package urxvt::anyevent; 868package urxvt::anyevent;
1145 869
1146=head2 The C<urxvt::anyevent> Class 870=head2 The C<urxvt::anyevent> Class
1147 871
1148The sole purpose of this class is to deliver an interface to the 872The sole purpose of this class is to deliver an interface to the
1149C<AnyEvent> module - any module using it will work inside urxvt without 873C<AnyEvent> module - any module using it will work inside urxvt without
1150further programming. The only exception is that you cannot wait on 874further programming. The only exception is that you cannot wait on
1151condition variables, but non-blocking condvar use is ok. What this means 875condition variables, but non-blocking condvar use is ok.
1152is that you cannot use blocking APIs, but the non-blocking variant should 876
1153work. 877In practical terms this means is that you cannot use blocking APIs, but
878the non-blocking variant should work.
1154 879
1155=cut 880=cut
1156 881
1157our $VERSION = '5.23'; 882our $VERSION = '5.23';
1158 883
1242 urxvt::verbose 6, "register package $pkg to $self"; 967 urxvt::verbose 6, "register package $pkg to $self";
1243 968
1244 @{"$pkg\::ISA"} = urxvt::term::extension::; 969 @{"$pkg\::ISA"} = urxvt::term::extension::;
1245 970
1246 my $proxy = bless { 971 my $proxy = bless {
1247 _pkg => $pkg, 972 _pkg => $pkg,
973 _name => ${"$pkg\::_NAME"}, # hackish
1248 argv => $argv, 974 argv => $argv,
1249 }, $pkg; 975 }, $pkg;
1250 Scalar::Util::weaken ($proxy->{term} = $self); 976 Scalar::Util::weaken ($proxy->{term} = $self);
1251 977
1252 $self->{_pkg}{$pkg} = $proxy; 978 $self->{_pkg}{$pkg} = $proxy;
1253 979
1254 for my $name (@HOOKNAME) { 980 for my $name (@HOOKNAME) {
1255 if (my $ref = $pkg->can ("on_" . lc $name)) { 981 if (my $ref = $pkg->can ("on_" . lc $name)) {
1256 $proxy->enable ($name => $ref); 982 $proxy->enable ($name => $ref);
983 }
984 }
985}
986
987sub perl_libdirs {
988 map { split /:/ }
989 $_[0]->resource ("perl_lib"),
990 $ENV{URXVT_PERL_LIB},
991 "$ENV{HOME}/.urxvt/ext",
992 "$LIBDIR/perl"
993}
994
995sub scan_meta {
996 my ($self) = @_;
997 my @libdirs = perl_libdirs $self;
998
999 return if $self->{meta_libdirs} eq join "\x00", @libdirs;
1000
1001 my %meta;
1002
1003 $self->{meta_libdirs} = join "\x00", @libdirs;
1004 $self->{meta} = \%meta;
1005
1006 for my $dir (reverse @libdirs) {
1007 opendir my $fh, $dir
1008 or next;
1009 for my $ext (readdir $fh) {
1010 $ext ne "."
1011 and $ext ne ".."
1012 and open my $fh, "<", "$dir/$ext"
1013 or next;
1014
1015 while (<$fh>) {
1016 if (/^#:META:X_RESOURCE:(.*)/) {
1017 my ($pattern, $type, $desc) = split /:/, $1;
1018 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1019 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1020 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1021 } else {
1022 $meta{resource}{$pattern} = [$ext, $type, $desc];
1023 }
1024 } elsif (/^\s*(?:#|$)/) {
1025 # skip other comments and empty lines
1026 } else {
1027 last; # stop parsing on first non-empty non-comment line
1028 }
1029 }
1257 } 1030 }
1258 } 1031 }
1259} 1032}
1260 1033
1261=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1034=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1348 1121
1349Here is a likely non-exhaustive list of resource names, not all of which 1122Here is a likely non-exhaustive list of resource names, not all of which
1350are supported in every build, please see the source file F</src/rsinc.h> 1123are supported in every build, please see the source file F</src/rsinc.h>
1351to see the actual list: 1124to see the actual list:
1352 1125
1353 answerbackstring backgroundPixmap backspace_key blendtype blurradius 1126 answerbackstring backgroundPixmap backspace_key blurradius
1354 boldFont boldItalicFont borderLess buffered chdir color cursorBlink 1127 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
1355 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth 1128 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
1356 fade font geometry hold iconName iconfile imFont imLocale inputMethod 1129 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1357 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont 1130 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
1358 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier 1131 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
1378Returns the X-Resource for the given pattern, excluding the program or 1151Returns the X-Resource for the given pattern, excluding the program or
1379class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1152class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1380same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1153same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1381resource with that pattern exists. 1154resource with that pattern exists.
1382 1155
1156Extensions that define extra resource or command line arguments also need
1157to call this method to access their values.
1158
1159If the method is called on an extension object (basically, from an
1160extension), then the special prefix C<%.> will be replaced by the name of
1161the extension and a dot, and the lone string C<%> will be replaced by the
1162extension name itself. This makes it possible to code extensions so you
1163can rename them and get a new set of commandline switches and resources
1164without having to change the actual code.
1165
1383This method should only be called during the C<on_start> hook, as there is 1166This method should only be called during the C<on_start> hook, as there is
1384only one resource database per display, and later invocations might return 1167only one resource database per display, and later invocations might return
1385the wrong resources. 1168the wrong resources.
1386 1169
1170=item $value = $term->x_resource_boolean ($pattern)
1171
1172Like C<x_resource>, above, but interprets the string value as a boolean
1173and returns C<1> for true values, C<0> for false values and C<undef> if
1174the resource or option isn't specified.
1175
1176You should always use this method to parse boolean resources.
1177
1178=cut
1179
1180sub x_resource_boolean {
1181 my $res = &x_resource;
1182
1183 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1184}
1185
1387=item $success = $term->parse_keysym ($key, $octets) 1186=item $success = $term->parse_keysym ($key, $octets)
1388 1187
1389Adds a key binding exactly as specified via a resource. See the 1188Adds a key binding exactly as specified via a resource. See the
1390C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1189C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1190
1191=item $term->register_command ($keysym, $modifiermask, $string)
1192
1193Adds a key binding. This is a lower level api compared to
1194C<parse_keysym>, as it expects a parsed key description, and can be
1195used only inside either the C<on_init> hook, to add a binding, or the
1196C<on_register_command> hook, to modify a parsed binding.
1391 1197
1392=item $rend = $term->rstyle ([$new_rstyle]) 1198=item $rend = $term->rstyle ([$new_rstyle])
1393 1199
1394Return and optionally change the current rendition. Text that is output by 1200Return and optionally change the current rendition. Text that is output by
1395the terminal application will use this style. 1201the terminal application will use this style.
1608 1414
1609Adds the specified events to the vt event mask. Useful e.g. when you want 1415Adds the specified events to the vt event mask. Useful e.g. when you want
1610to receive pointer events all the times: 1416to receive pointer events all the times:
1611 1417
1612 $term->vt_emask_add (urxvt::PointerMotionMask); 1418 $term->vt_emask_add (urxvt::PointerMotionMask);
1419
1420=item $term->set_urgency ($set)
1421
1422Enable/disable the urgency hint on the toplevel window.
1613 1423
1614=item $term->focus_in 1424=item $term->focus_in
1615 1425
1616=item $term->focus_out 1426=item $term->focus_out
1617 1427
1933=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height) 1743=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1934 1744
1935=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y) 1745=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1936 1746
1937=item $term->XChangeInput ($window, $add_events[, $del_events]) 1747=item $term->XChangeInput ($window, $add_events[, $del_events])
1748
1749=item $keysym = $term->XStringToKeysym ($string)
1750
1751=item $string = $term->XKeysymToString ($keysym)
1938 1752
1939Various X or X-related functions. The C<$term> object only serves as 1753Various X or X-related functions. The C<$term> object only serves as
1940the source of the display, otherwise those functions map more-or-less 1754the source of the display, otherwise those functions map more-or-less
1941directly onto the X functions of the same name. 1755directly onto the X functions of the same name.
1942 1756

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