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Revision 1.195 by sf-exg, Wed Jun 29 22:18:11 2011 UTC vs.
Revision 1.220 by root, Tue Jun 19 18:17:56 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
460=item $urxvt_term = $self->{term} 112=item $urxvt_term = $self->{term}
461 113
462Returns the C<urxvt::term> object associated with this instance of the 114Returns the C<urxvt::term> object associated with this instance of the
463extension. This member I<must not> be changed in any way. 115extension. This member I<must not> be changed in any way.
464 116
465=item $self->enable ($hook_name => $cb, [$hook_name => $cb..]) 117=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
466 118
467Dynamically enable the given hooks (named without the C<on_> prefix) for 119Dynamically enable the given hooks (named without the C<on_> prefix) for
468this extension, replacing any previous hook. This is useful when you want 120this extension, replacing any previous hook. This is useful when you want
469to overwrite time-critical hooks only temporarily. 121to overwrite time-critical hooks only temporarily.
470 122
123To install additional callbacks for the same hook, you cna use the C<on>
124method of the C<urxvt::term> class.
125
471=item $self->disable ($hook_name[, $hook_name..]) 126=item $self->disable ($hook_name[, $hook_name..])
472 127
473Dynamically disable the given hooks. 128Dynamically disable the given hooks.
129
130=item $self->x_resource ($pattern)
131
132=item $self->x_resource_boolean ($pattern)
133
134These methods support an additional C<%> prefix when called on an
135extension object - see the description of these methods in the
136C<urxvt::term> class for details.
474 137
475=back 138=back
476 139
477=head2 Hooks 140=head2 Hooks
478 141
656resource in the @@RXVT_NAME@@(1) manpage). 319resource in the @@RXVT_NAME@@(1) manpage).
657 320
658The event is simply the action string. This interface is assumed to change 321The event is simply the action string. This interface is assumed to change
659slightly in the future. 322slightly in the future.
660 323
324=item on_register_command $term, $keysym, $modifiermask, $string
325
326Called after parsing a keysym resource but before registering the
327associated binding. If this hook returns TRUE the binding is not
328registered. It can be used to modify a binding by calling
329C<register_command>.
330
661=item on_resize_all_windows $term, $new_width, $new_height 331=item on_resize_all_windows $term, $new_width, $new_height
662 332
663Called just after the new window size has been calculated, but before 333Called just after the new window size has been calculated, but before
664windows are actually being resized or hints are being set. If this hook 334windows are actually being resized or hints are being set. If this hook
665returns TRUE, setting of the window hints is being skipped. 335returns TRUE, setting of the window hints is being skipped.
732=cut 402=cut
733 403
734package urxvt; 404package urxvt;
735 405
736use utf8; 406use utf8;
737use strict; 407use strict 'vars';
738use Carp (); 408use Carp ();
739use Scalar::Util (); 409use Scalar::Util ();
740use List::Util (); 410use List::Util ();
741 411
742our $VERSION = 1; 412our $VERSION = 1;
743our $TERM; 413our $TERM;
744our @TERM_INIT; 414our @TERM_INIT; # should go, prevents async I/O etc.
745our @TERM_EXT; 415our @TERM_EXT; # should go, prevents async I/O etc.
746our @HOOKNAME; 416our @HOOKNAME;
747our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 417our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
748our %OPTION; 418our %OPTION;
749 419
750our $LIBDIR; 420our $LIBDIR;
920 }; 590 };
921} 591}
922 592
923no warnings 'utf8'; 593no warnings 'utf8';
924 594
595sub parse_resource {
596 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
597
598 $name =~ y/-/./ if $isarg;
599
600 $term->scan_meta;
601
602 my $r = $term->{meta}{resource};
603 keys %$r; # reste iterator
604 while (my ($pattern, $v) = each %$r) {
605 if (
606 $pattern =~ /\.$/
607 ? $pattern eq substr $name, 0, length $pattern
608 : $pattern eq $name
609 ) {
610 $name = "$urxvt::RESCLASS.$name";
611
612 push @{ $term->{perl_ext_3} }, $v->[0];
613
614 if ($v->[1] eq "boolean") {
615 $term->put_option_db ($name, $flag ? "true" : "false");
616 return 1;
617 } else {
618 $term->put_option_db ($name, $value);
619 return 1 + 2;
620 }
621 }
622 }
623
624 0
625}
626
627sub usage {
628 my ($term, $usage_type) = @_;
629
630 $term->scan_meta;
631
632 my $r = $term->{meta}{resource};
633
634 for my $pattern (sort keys %$r) {
635 my ($ext, $type, $desc) = @{ $r->{$pattern} };
636
637 $desc .= " (-pe $ext)";
638
639 if ($usage_type == 1) {
640 $pattern =~ y/./-/;
641 $pattern =~ s/-$/-.../g;
642
643 if ($type eq "boolean") {
644 urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
645 } else {
646 urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
647 }
648 } else {
649 $pattern =~ s/\.$/.*/g;
650 urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
651 }
652 }
653}
654
925my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 655my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
926 656
927sub verbose { 657sub verbose {
928 my ($level, $msg) = @_; 658 my ($level, $msg) = @_;
929 warn "$msg\n" if $level <= $verbosity; 659 warn "$msg\n" if $level <= $verbosity;
941 $pkg =~ s/[^[:word:]]/_/g; 671 $pkg =~ s/[^[:word:]]/_/g;
942 $pkg = "urxvt::ext::$pkg"; 672 $pkg = "urxvt::ext::$pkg";
943 673
944 verbose 3, "loading extension '$path' into package '$pkg'"; 674 verbose 3, "loading extension '$path' into package '$pkg'";
945 675
676 (${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
677
946 open my $fh, "<:raw", $path 678 open my $fh, "<:raw", $path
947 or die "$path: $!"; 679 or die "$path: $!";
948 680
949 my $source = 681 my $source =
950 "package $pkg; use strict; use utf8; no warnings 'utf8';\n" 682 "package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
951 . "#line 1 \"$path\"\n{\n" 683 . "#line 1 \"$path\"\n{\n"
952 . (do { local $/; <$fh> }) 684 . (do { local $/; <$fh> })
953 . "\n};\n1"; 685 . "\n};\n1";
954 686
955 eval $source 687 eval $source
965sub invoke { 697sub invoke {
966 local $TERM = shift; 698 local $TERM = shift;
967 my $htype = shift; 699 my $htype = shift;
968 700
969 if ($htype == 0) { # INIT 701 if ($htype == 0) { # INIT
970 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 702 my @dirs = $TERM->perl_libdirs;
971 703
972 my %ext_arg; 704 my %ext_arg;
973 705
974 { 706 {
975 my @init = @TERM_INIT; 707 my @init = @TERM_INIT;
978 my @pkg = @TERM_EXT; 710 my @pkg = @TERM_EXT;
979 @TERM_EXT = (); 711 @TERM_EXT = ();
980 $TERM->register_package ($_) for @pkg; 712 $TERM->register_package ($_) for @pkg;
981 } 713 }
982 714
715 for (
716 @{ delete $TERM->{perl_ext_3} },
983 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 717 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
718 ) {
984 if ($_ eq "default") { 719 if ($_ eq "default") {
985 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 720 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
986 } elsif (/^-(.*)$/) { 721 } elsif (/^-(.*)$/) {
987 delete $ext_arg{$1}; 722 delete $ext_arg{$1};
988 } elsif (/^([^<]+)<(.*)>$/) { 723 } elsif (/^([^<]+)<(.*)>$/) {
1011 if (my $cb = $TERM->{_hook}[$htype]) { 746 if (my $cb = $TERM->{_hook}[$htype]) {
1012 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 747 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
1013 if $verbosity >= 10; 748 if $verbosity >= 10;
1014 749
1015 for my $pkg (keys %$cb) { 750 for my $pkg (keys %$cb) {
1016 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) }; 751 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
1017 $retval ||= $retval_; 752 $retval ||= $retval_;
1018 753
1019 if ($@) { 754 if ($@) {
1020 $TERM->ungrab; # better to lose the grab than the session 755 $TERM->ungrab; # better to lose the grab than the session
1021 warn $@; 756 warn $@;
1064 } 799 }
1065 } 800 }
1066 ($mask, @color{qw(fg bg)}, \@failed) 801 ($mask, @color{qw(fg bg)}, \@failed)
1067} 802}
1068 803
1069# urxvt::term::extension
1070
1071package urxvt::term::extension; 804package urxvt::term::extension;
1072 805
1073sub enable { 806sub enable {
1074 my ($self, %hook) = @_; 807 my ($self, %hook) = @_;
1075 my $pkg = $self->{_pkg}; 808 my $pkg = $self->{_pkg};
1129 862
1130sub urxvt::destroy_hook(&) { 863sub urxvt::destroy_hook(&) {
1131 bless \shift, urxvt::destroy_hook:: 864 bless \shift, urxvt::destroy_hook::
1132} 865}
1133 866
867sub x_resource {
868 my ($self, $name) = @_;
869 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
870 $self->{term}->x_resource ($name)
871}
872
873sub x_resource_boolean {
874 my ($self, $name) = @_;
875 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
876 $self->{term}->x_resource_boolean ($name)
877}
878
1134package urxvt::anyevent; 879package urxvt::anyevent;
1135 880
1136=head2 The C<urxvt::anyevent> Class 881=head2 The C<urxvt::anyevent> Class
1137 882
1138The sole purpose of this class is to deliver an interface to the 883The sole purpose of this class is to deliver an interface to the
1139C<AnyEvent> module - any module using it will work inside urxvt without 884C<AnyEvent> module - any module using it will work inside urxvt without
1140further programming. The only exception is that you cannot wait on 885further programming. The only exception is that you cannot wait on
1141condition variables, but non-blocking condvar use is ok. What this means 886condition variables, but non-blocking condvar use is ok.
1142is that you cannot use blocking APIs, but the non-blocking variant should 887
1143work. 888In practical terms this means is that you cannot use blocking APIs, but
889the non-blocking variant should work.
1144 890
1145=cut 891=cut
1146 892
1147our $VERSION = '5.23'; 893our $VERSION = '5.23';
1148 894
1207 953
1208sub DESTROY { 954sub DESTROY {
1209 $_[0][1]->stop; 955 $_[0][1]->stop;
1210} 956}
1211 957
958# only needed for AnyEvent < 6 compatibility
1212sub one_event { 959sub one_event {
1213 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API"; 960 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
1214} 961}
1215 962
1216package urxvt::term; 963package urxvt::term;
1231 urxvt::verbose 6, "register package $pkg to $self"; 978 urxvt::verbose 6, "register package $pkg to $self";
1232 979
1233 @{"$pkg\::ISA"} = urxvt::term::extension::; 980 @{"$pkg\::ISA"} = urxvt::term::extension::;
1234 981
1235 my $proxy = bless { 982 my $proxy = bless {
1236 _pkg => $pkg, 983 _pkg => $pkg,
984 _name => ${"$pkg\::_NAME"}, # hackish
1237 argv => $argv, 985 argv => $argv,
1238 }, $pkg; 986 }, $pkg;
1239 Scalar::Util::weaken ($proxy->{term} = $self); 987 Scalar::Util::weaken ($proxy->{term} = $self);
1240 988
1241 $self->{_pkg}{$pkg} = $proxy; 989 $self->{_pkg}{$pkg} = $proxy;
1242 990
1245 $proxy->enable ($name => $ref); 993 $proxy->enable ($name => $ref);
1246 } 994 }
1247 } 995 }
1248} 996}
1249 997
998sub perl_libdirs {
999 map { split /:/ }
1000 $_[0]->resource ("perl_lib"),
1001 $ENV{URXVT_PERL_LIB},
1002 "$ENV{HOME}/.urxvt/ext",
1003 "$LIBDIR/perl"
1004}
1005
1006sub scan_meta {
1007 my ($self) = @_;
1008 my @libdirs = perl_libdirs $self;
1009
1010 return if $self->{meta_libdirs} eq join "\x00", @libdirs;
1011
1012 my %meta;
1013
1014 $self->{meta_libdirs} = join "\x00", @libdirs;
1015 $self->{meta} = \%meta;
1016
1017 for my $dir (reverse @libdirs) {
1018 opendir my $fh, $dir
1019 or next;
1020 for my $ext (readdir $fh) {
1021 $ext ne "."
1022 and $ext ne ".."
1023 and open my $fh, "<", "$dir/$ext"
1024 or next;
1025
1026 while (<$fh>) {
1027 if (/^#:META:X_RESOURCE:(.*)/) {
1028 my ($pattern, $type, $desc) = split /:/, $1;
1029 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1030 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1031 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1032 } else {
1033 $meta{resource}{$pattern} = [$ext, $type, $desc];
1034 }
1035 } elsif (/^\s*(?:#|$)/) {
1036 # skip other comments and empty lines
1037 } else {
1038 last; # stop parsing on first non-empty non-comment line
1039 }
1040 }
1041 }
1042 }
1043}
1044
1250=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1045=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1251 1046
1252Creates a new terminal, very similar as if you had started it with system 1047Creates a new terminal, very similar as if you had started it with system
1253C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like 1048C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1254hash which defines the environment of the new terminal. 1049hash which defines the environment of the new terminal.
1274 1069
1275Destroy the terminal object (close the window, free resources 1070Destroy the terminal object (close the window, free resources
1276etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1071etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1277watchers (timers, io watchers) are still active. 1072watchers (timers, io watchers) are still active.
1278 1073
1074=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
1075
1076Similar to the extension method C<enable>, but installs additional
1077callbacks for the givne hook(s) (existing ones are not replaced), and
1078returns a guard object. When the guard object is destroyed the callbacks
1079are disabled again.
1080
1081Note that these callbacks receive the normal paramaters, but the first
1082argument (normally the extension) is currently undefined.
1083
1084=cut
1085
1086sub urxvt::term::on_disable::DESTROY {
1087 my $disable = shift;
1088
1089 my $self = delete $disable->{""};
1090
1091 while (my ($htype, $id) = each %$disable) {
1092 delete $self->{_hook}[$htype]{$id};
1093 $self->set_should_invoke ($htype, -1);
1094 }
1095}
1096
1097sub on {
1098 my ($self, %hook) = @_;
1099
1100 my %disable = ( "" => $self );
1101
1102 while (my ($name, $cb) = each %hook) {
1103 my $htype = $HOOKTYPE{uc $name};
1104 defined $htype
1105 or Carp::croak "unsupported hook type '$name'";
1106
1107 my $id = $cb+0;
1108
1109 $self->set_should_invoke ($htype, +1);
1110 $disable{$htype} = $id;
1111 $self->{_hook}[$htype]{$id} = $cb;
1112 }
1113
1114 bless \%disable, "urxvt::term::on_disable"
1115}
1116
1279=item $term->exec_async ($cmd[, @args]) 1117=item $term->exec_async ($cmd[, @args])
1280 1118
1281Works like the combination of the C<fork>/C<exec> builtins, which executes 1119Works like the combination of the C<fork>/C<exec> builtins, which executes
1282("starts") programs in the background. This function takes care of setting 1120("starts") programs in the background. This function takes care of setting
1283the user environment before exec'ing the command (e.g. C<PATH>) and should 1121the user environment before exec'ing the command (e.g. C<PATH>) and should
1310Here is a likely non-exhaustive list of option names, please see the 1148Here is a likely non-exhaustive list of option names, please see the
1311source file F</src/optinc.h> to see the actual list: 1149source file F</src/optinc.h> to see the actual list:
1312 1150
1313 borderLess buffered console cursorBlink cursorUnderline hold iconic 1151 borderLess buffered console cursorBlink cursorUnderline hold iconic
1314 insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell 1152 insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
1315 mapAlert meta8 mouseWheelScrollPage override-redirect pastableTabs 1153 mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
1316 pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right 1154 pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
1317 scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen 1155 scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
1318 secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords 1156 secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
1319 urgentOnBell utmpInhibit visualBell 1157 urgentOnBell utmpInhibit visualBell
1320 1158
1337 1175
1338Here is a likely non-exhaustive list of resource names, not all of which 1176Here is a likely non-exhaustive list of resource names, not all of which
1339are supported in every build, please see the source file F</src/rsinc.h> 1177are supported in every build, please see the source file F</src/rsinc.h>
1340to see the actual list: 1178to see the actual list:
1341 1179
1342 answerbackstring backgroundPixmap backspace_key blendtype blurradius 1180 answerbackstring backgroundPixmap backspace_key blurradius
1343 boldFont boldItalicFont borderLess buffered chdir color cursorBlink 1181 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
1344 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth 1182 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
1345 fade font geometry hold iconName iconfile imFont imLocale inputMethod 1183 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1346 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont 1184 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
1347 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier 1185 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
1367Returns the X-Resource for the given pattern, excluding the program or 1205Returns the X-Resource for the given pattern, excluding the program or
1368class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1206class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1369same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1207same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1370resource with that pattern exists. 1208resource with that pattern exists.
1371 1209
1210Extensions that define extra resource or command line arguments also need
1211to call this method to access their values.
1212
1213If the method is called on an extension object (basically, from an
1214extension), then the special prefix C<%.> will be replaced by the name of
1215the extension and a dot, and the lone string C<%> will be replaced by the
1216extension name itself. This makes it possible to code extensions so you
1217can rename them and get a new set of commandline switches and resources
1218without having to change the actual code.
1219
1372This method should only be called during the C<on_start> hook, as there is 1220This method should only be called during the C<on_start> hook, as there is
1373only one resource database per display, and later invocations might return 1221only one resource database per display, and later invocations might return
1374the wrong resources. 1222the wrong resources.
1375 1223
1376=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1224=item $value = $term->x_resource_boolean ($pattern)
1377 1225
1226Like C<x_resource>, above, but interprets the string value as a boolean
1227and returns C<1> for true values, C<0> for false values and C<undef> if
1228the resource or option isn't specified.
1229
1230You should always use this method to parse boolean resources.
1231
1232=cut
1233
1234sub x_resource_boolean {
1235 my $res = &x_resource;
1236
1237 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1238}
1239
1240=item $success = $term->parse_keysym ($key, $octets)
1241
1378Adds a keymap translation exactly as specified via a resource. See the 1242Adds a key binding exactly as specified via a resource. See the
1379C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1243C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1244
1245=item $term->register_command ($keysym, $modifiermask, $string)
1246
1247Adds a key binding. This is a lower level api compared to
1248C<parse_keysym>, as it expects a parsed key description, and can be
1249used only inside either the C<on_init> hook, to add a binding, or the
1250C<on_register_command> hook, to modify a parsed binding.
1380 1251
1381=item $rend = $term->rstyle ([$new_rstyle]) 1252=item $rend = $term->rstyle ([$new_rstyle])
1382 1253
1383Return and optionally change the current rendition. Text that is output by 1254Return and optionally change the current rendition. Text that is output by
1384the terminal application will use this style. 1255the terminal application will use this style.
1597 1468
1598Adds the specified events to the vt event mask. Useful e.g. when you want 1469Adds the specified events to the vt event mask. Useful e.g. when you want
1599to receive pointer events all the times: 1470to receive pointer events all the times:
1600 1471
1601 $term->vt_emask_add (urxvt::PointerMotionMask); 1472 $term->vt_emask_add (urxvt::PointerMotionMask);
1473
1474=item $term->set_urgency ($set)
1475
1476Enable/disable the urgency hint on the toplevel window.
1602 1477
1603=item $term->focus_in 1478=item $term->focus_in
1604 1479
1605=item $term->focus_out 1480=item $term->focus_out
1606 1481
1922=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height) 1797=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1923 1798
1924=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y) 1799=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1925 1800
1926=item $term->XChangeInput ($window, $add_events[, $del_events]) 1801=item $term->XChangeInput ($window, $add_events[, $del_events])
1802
1803=item $keysym = $term->XStringToKeysym ($string)
1804
1805=item $string = $term->XKeysymToString ($keysym)
1927 1806
1928Various X or X-related functions. The C<$term> object only serves as 1807Various X or X-related functions. The C<$term> object only serves as
1929the source of the display, otherwise those functions map more-or-less 1808the source of the display, otherwise those functions map more-or-less
1930directly onto the X functions of the same name. 1809directly onto the X functions of the same name.
1931 1810

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