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Revision 1.38 by root, Fri Jan 6 03:43:12 2006 UTC vs.
Revision 1.133 by root, Mon Feb 6 06:14:08 2006 UTC

17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Everytime a terminal object gets created, scripts specified via the 22Everytime a terminal object gets created, extension scripts specified via
23C<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' 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
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
43
40=over 4 44=over 4
41 45
42=item selection 46=item selection (enabled by default)
43 47
44Intelligent selection. This extension tries to be more intelligent when 48(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 49when the user extends selections (double-click and further clicks). Right
46urls and complete shell-quoted arguments, which is very convenient, too, 50now, it tries to select words, urls and complete shell-quoted
47if your F<ls> supports C<--quoting-style=shell>. 51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
48 53
49It also offers the following bindable event: 54A double-click usually selects the word under the cursor, further clicks
55will enlarge the selection.
56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
79You can look at the source of the selection extension to see more
80interesting uses, such as parsing a line from beginning to end.
81
82This extension also offers following bindable keyboard commands:
50 83
51=over 4 84=over 4
52 85
53=item rot13 86=item rot13
54 87
56 89
57 URxvt.keysym.C-M-r: perl:selection:rot13 90 URxvt.keysym.C-M-r: perl:selection:rot13
58 91
59=back 92=back
60 93
94=item option-popup (enabled by default)
95
96Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
97runtime.
98
99Other extensions can extend this popup menu by pushing a code reference
100onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
101popup is being displayed.
102
103It's sole argument is the popup menu, which can be modified. It should
104either return nothing or a string, the initial boolean value and a code
105reference. The string will be used as button text and the code reference
106will be called when the toggle changes, with the new boolean value as
107first argument.
108
109The following will add an entry C<myoption> that changes
110C<$self->{myoption}>:
111
112 push @{ $self->{term}{option_popup_hook} }, sub {
113 ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
114 };
115
116=item selection-popup (enabled by default)
117
118Binds a popup menu to Ctrl-Button3 that lets you convert the selection
119text into various other formats/action (such as uri unescaping, perl
120evaluation, web-browser starting etc.), depending on content.
121
122Other extensions can extend this popup menu by pushing a code reference
123onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
124popup is being displayed.
125
126It's sole argument is the popup menu, which can be modified. The selection
127is in C<$_>, which can be used to decide wether to add something or not.
128It should either return nothing or a string and a code reference. The
129string will be used as button text and the code reference will be called
130when the button gets activated and should transform C<$_>.
131
132The following will add an entry C<a to b> that transforms all C<a>s in
133the selection to C<b>s, but only if the selection currently contains any
134C<a>s:
135
136 push @{ $self->{term}{selection_popup_hook} }, sub {
137 /a/ ? ("a to be" => sub { s/a/b/g }
138 : ()
139 };
140
141=item searchable-scrollback<hotkey> (enabled by default)
142
143Adds regex search functionality to the scrollback buffer, triggered
144by a hotkey (default: C<M-s>). While in search mode, normal terminal
145input/output is suspended and a regex is displayed at the bottom of the
146screen.
147
148Inputting characters appends them to the regex and continues incremental
149search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
150search upwards/downwards in the scrollback buffer, C<End> jumps to the
151bottom. C<Escape> leaves search mode and returns to the point where search
152was started, while C<Enter> or C<Return> stay at the current position and
153additionally stores the first match in the current line into the primary
154selection.
155
156=item readline (enabled by default)
157
158A support package that tries to make editing with readline easier. At the
159moment, it reacts to clicking with the left mouse button by trying to
160move the text cursor to this position. It does so by generating as many
161cursor-left or cursor-right keypresses as required (the this only works
162for programs that correctly support wide characters).
163
164To avoid too many false positives, this is only done when:
165
166=over 4
167
168=item - the tty is in ICANON state.
169
170=item - the text cursor is visible.
171
172=item - the primary screen is currently being displayed.
173
174=item - the mouse is on the same (multi-row-) line as the text cursor.
175
176=back
177
178The normal selection mechanism isn't disabled, so quick successive clicks
179might interfere with selection creation in harmless ways.
180
181=item selection-autotransform
182
183This selection allows you to do automatic transforms on a selection
184whenever a selection is made.
185
186It works by specifying perl snippets (most useful is a single C<s///>
187operator) that modify C<$_> as resources:
188
189 URxvt.selection-autotransform.0: transform
190 URxvt.selection-autotransform.1: transform
191 ...
192
193For example, the following will transform selections of the form
194C<filename:number>, often seen in compiler messages, into C<vi +$filename
195$word>:
196
197 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
198
199And this example matches the same,but replaces it with vi-commands you can
200paste directly into your (vi :) editor:
201
202 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
203
204Of course, this can be modified to suit your needs and your editor :)
205
206To expand the example above to typical perl error messages ("XXX at
207FILENAME line YYY."), you need a slightly more elaborate solution:
208
209 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
210 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
211
212The first line tells the selection code to treat the unchanging part of
213every error message as a selection pattern, and the second line transforms
214the message into vi commands to load the file.
215
216=item tabbed
217
218This transforms the terminal into a tabbar with additional terminals, that
219is, it implements what is commonly refered to as "tabbed terminal". The topmost line
220displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
221button per tab.
222
223Clicking a button will activate that tab. Pressing B<Shift-Left> and
224B<Shift-Right> will switch to the tab left or right of the current one,
225while B<Shift-Down> creates a new tab.
226
227The tabbar itself can be configured similarly to a normal terminal, but
228with a resource class of C<URxvt.tabbed>. In addition, it supports the
229following four resources (shown with defaults):
230
231 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
232 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
233 URxvt.tabbed.tab-fg: <colour-index, default 0>
234 URxvt.tabbed.tab-bg: <colour-index, default 1>
235
236See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
237indices.
238
239=item mark-urls
240
241Uses per-line display filtering (C<on_line_update>) to underline urls and
242make them clickable. When middle-clicked, the program specified in the
243resource C<urlLauncher> (default C<x-www-browser>) will be started with
244the URL as first argument.
245
246=item xim-onthespot
247
248This (experimental) perl extension implements OnTheSpot editing. It does
249not work perfectly, and some input methods don't seem to work well with
250OnTheSpot editing in general, but it seems to work at leats for SCIM and
251kinput2.
252
253You enable it by specifying this extension and a preedit style of
254C<OnTheSpot>, i.e.:
255
256 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
257
258=item automove-background
259
260This is basically a one-line extension that dynamically changes the background pixmap offset
261to the window position, in effect creating the same effect as pseudo transparency with
262a custom pixmap. No scaling is supported in this mode. Exmaple:
263
264 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
265
266=item block-graphics-to-ascii
267
268A not very useful example of filtering all text output to the terminal,
269by replacing all line-drawing characters (U+2500 .. U+259F) by a
270similar-looking ascii character.
271
61=item digital-clock 272=item digital-clock
62 273
63Displays a digital clock using the built-in overlay. 274Displays a digital clock using the built-in overlay.
64 275
65=item mark-urls 276=item remote-clipboard
66 277
67Uses per-line filtering (C<on_line_update>) to underline urls. 278Somewhat of a misnomer, this extension adds two menu entries to the
279selection popup that allows one ti run external commands to store the
280selection somewhere and fetch it again.
281
282We use it to implement a "distributed selection mechanism", which just
283means that one command uploads the file to a remote server, and another
284reads it.
285
286The commands can be set using the C<URxvt.remote-selection.store> and
287C<URxvt.remote-selection.fetch> resources. The first should read the
288selection to store from STDIN (always in UTF-8), the second should provide
289the selection data on STDOUT (also in UTF-8).
290
291The defaults (which are likely useless to you) use rsh and cat:
292
293 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
294 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
295
296=item selection-pastebin
297
298This is a little rarely useful extension that Uploads the selection as
299textfile to a remote site (or does other things). (The implementation is
300not currently secure for use in a multiuser environment as it writes to
301F</tmp> directly.).
302
303It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
304i.e.
305
306 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
307
308Pressing this combination runs a command with C<%> replaced by the name of
309the textfile. This command can be set via a resource:
310
311 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
312
313And the default is likely not useful to anybody but the few people around
314here :)
315
316The name of the textfile is the hex encoded md5 sum of the selection, so
317the same content should lead to the same filename.
318
319After a successful upload the selection will be replaced by the text given
320in the C<selection-pastebin-url> resource (again, the % is the placeholder
321for the filename):
322
323 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
68 324
69=item example-refresh-hooks 325=item example-refresh-hooks
70 326
71Displays a very simple digital clock in the upper right corner of the 327Displays a very simple digital clock in the upper right corner of the
72window. Illustrates overwriting the refresh callbacks to create your own 328window. Illustrates overwriting the refresh callbacks to create your own
73overlays or changes. 329overlays or changes.
74 330
75=item example-filter-input
76
77A not very useful example of filtering all text output to the terminal, by
78underlining all urls that matches a certain regex (i.e. some urls :). It
79is not very useful because urls that are output in multiple steps (e.g.
80when typing them) do not get marked.
81
82=back 331=back
332
333=head1 API DOCUMENTATION
83 334
84=head2 General API Considerations 335=head2 General API Considerations
85 336
86All objects (such as terminals, time watchers etc.) are typical 337All objects (such as terminals, time watchers etc.) are typical
87reference-to-hash objects. The hash can be used to store anything you 338reference-to-hash objects. The hash can be used to store anything you
100=over 4 351=over 4
101 352
102=item $text 353=item $text
103 354
104Rxvt-unicodes special way of encoding text, where one "unicode" character 355Rxvt-unicodes special way of encoding text, where one "unicode" character
105always represents one screen cell. See L<row_t> for a discussion of this format. 356always represents one screen cell. See L<ROW_t> for a discussion of this format.
106 357
107=item $string 358=item $string
108 359
109A perl text string, with an emphasis on I<text>. It can store all unicode 360A perl text string, with an emphasis on I<text>. It can store all unicode
110characters and is to be distinguished with text encoded in a specific 361characters and is to be distinguished with text encoded in a specific
115Either binary data or - more common - a text string encoded in a 366Either binary data or - more common - a text string encoded in a
116locale-specific way. 367locale-specific way.
117 368
118=back 369=back
119 370
371=head2 Extension Objects
372
373Very perl extension is a perl class. A separate perl object is created
374for each terminal and each extension and passed as the first parameter to
375hooks. So extensions can use their C<$self> object without having to think
376about other extensions, with the exception of methods and members that
377begin with an underscore character C<_>: these are reserved for internal
378use.
379
380Although it isn't a C<urxvt::term> object, you can call all methods of the
381C<urxvt::term> class on this object.
382
383It has the following methods and data members:
384
385=over 4
386
387=item $urxvt_term = $self->{term}
388
389Returns the C<urxvt::term> object associated with this instance of the
390extension. This member I<must not> be changed in any way.
391
392=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
393
394Dynamically enable the given hooks (named without the C<on_> prefix) for
395this extension, replacing any previous hook. This is useful when you want
396to overwrite time-critical hooks only temporarily.
397
398=item $self->disable ($hook_name[, $hook_name..])
399
400Dynamically disable the given hooks.
401
402=back
403
120=head2 Hooks 404=head2 Hooks
121 405
122The following subroutines can be declared in loaded scripts, and will be 406The following subroutines can be declared in extension files, and will be
123called whenever the relevant event happens. 407called whenever the relevant event happens.
124 408
125The first argument passed to them is an object private to each terminal 409The first argument passed to them is an extension oject as described in
126and extension package. You can call all C<urxvt::term> methods on it, but 410the in the C<Extension Objects> section.
127its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
128object that is shared between all packages is stored in the C<term>
129member.
130 411
131All of them must return a boolean value. If it is true, then the event 412B<All> of these hooks must return a boolean value. If any of the called
132counts as being I<consumed>, and the invocation of other hooks is skipped, 413hooks returns true, then the event counts as being I<consumed>, and the
133and the relevant action might not be carried out by the C++ code. 414relevant action might not be carried out by the C++ code.
134 415
135When in doubt, return a false value (preferably C<()>). 416I<< When in doubt, return a false value (preferably C<()>). >>
136 417
137=over 4 418=over 4
138 419
139=item on_init $term 420=item on_init $term
140 421
141Called after a new terminal object has been initialized, but before 422Called after a new terminal object has been initialized, but before
142windows are created or the command gets run. Most methods are unsafe to 423windows are created or the command gets run. Most methods are unsafe to
143call or deliver senseless data, as terminal size and other characteristics 424call or deliver senseless data, as terminal size and other characteristics
144have not yet been determined. You can safely query and change resources, 425have not yet been determined. You can safely query and change resources
145though. 426and options, though. For many purposes the C<on_start> hook is a better
427place.
428
429=item on_start $term
430
431Called at the very end of initialisation of a new terminal, just before
432trying to map (display) the toplevel and returning to the mainloop.
433
434=item on_destroy $term
435
436Called whenever something tries to destroy terminal, when the terminal is
437still fully functional (not for long, though).
146 438
147=item on_reset $term 439=item on_reset $term
148 440
149Called after the screen is "reset" for any reason, such as resizing or 441Called after the screen is "reset" for any reason, such as resizing or
150control sequences. Here is where you can react on changes to size-related 442control sequences. Here is where you can react on changes to size-related
151variables. 443variables.
152 444
153=item on_start $term 445=item on_child_start $term, $pid
154 446
155Called at the very end of initialisation of a new terminal, just before 447Called just after the child process has been C<fork>ed.
156returning to the mainloop. 448
449=item on_child_exit $term, $status
450
451Called just after the child process has exited. C<$status> is the status
452from C<waitpid>.
157 453
158=item on_sel_make $term, $eventtime 454=item on_sel_make $term, $eventtime
159 455
160Called whenever a selection has been made by the user, but before the 456Called whenever a selection has been made by the user, but before the
161selection text is copied, so changes to the beginning, end or type of the 457selection text is copied, so changes to the beginning, end or type of the
175=item on_sel_extend $term 471=item on_sel_extend $term
176 472
177Called whenever the user tries to extend the selection (e.g. with a double 473Called whenever the user tries to extend the selection (e.g. with a double
178click) and is either supposed to return false (normal operation), or 474click) and is either supposed to return false (normal operation), or
179should extend the selection itelf and return true to suppress the built-in 475should extend the selection itelf and return true to suppress the built-in
180processing. 476processing. This can happen multiple times, as long as the callback
477returns true, it will be called on every further click by the user and is
478supposed to enlarge the selection more and more, if possible.
181 479
182See the F<selection> example extension. 480See the F<selection> example extension.
183
184=item on_focus_in $term
185
186Called whenever the window gets the keyboard focus, before urxvt does
187focus in processing.
188
189=item on_focus_out $term
190
191Called wheneever the window loses keyboard focus, before urxvt does focus
192out processing.
193 481
194=item on_view_change $term, $offset 482=item on_view_change $term, $offset
195 483
196Called whenever the view offset changes, i..e the user or program 484Called whenever the view offset changes, i..e the user or program
197scrolls. Offset C<0> means display the normal terminal, positive values 485scrolls. Offset C<0> means display the normal terminal, positive values
204than the scroll back buffer or the terminal. 492than the scroll back buffer or the terminal.
205 493
206It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 494It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 495$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208number of lines that will be in the scrollback buffer. 496number of lines that will be in the scrollback buffer.
209
210=item on_tty_activity $term *NYI*
211
212Called whenever the program(s) running in the urxvt window send output.
213 497
214=item on_osc_seq $term, $string 498=item on_osc_seq $term, $string
215 499
216Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 500Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217operating system command) is processed. Cursor position and other state 501operating system command) is processed. Cursor position and other state
230can filter/change and output the text yourself by returning a true value 514can filter/change and output the text yourself by returning a true value
231and calling C<< $term->scr_add_lines >> yourself. Please note that this 515and calling C<< $term->scr_add_lines >> yourself. Please note that this
232might be very slow, however, as your hook is called for B<all> text being 516might be very slow, however, as your hook is called for B<all> text being
233output. 517output.
234 518
519=item on_tt_write $term, $octets
520
521Called whenever some data is written to the tty/pty and can be used to
522suppress or filter tty input.
523
235=item on_line_update $term, $row 524=item on_line_update $term, $row
236 525
237Called whenever a line was updated or changed. Can be used to filter 526Called whenever a line was updated or changed. Can be used to filter
238screen output (e.g. underline urls or other useless stuff). Only lines 527screen output (e.g. underline urls or other useless stuff). Only lines
239that are being shown will be filtered, and, due to performance reasons, 528that are being shown will be filtered, and, due to performance reasons,
255 544
256=item on_refresh_end $term 545=item on_refresh_end $term
257 546
258Called just after the screen gets redrawn. See C<on_refresh_begin>. 547Called just after the screen gets redrawn. See C<on_refresh_begin>.
259 548
260=item on_keyboard_command $term, $string 549=item on_user_command $term, $string
261 550
262Called whenever the user presses a key combination that has a 551Called whenever the a user-configured event is being activated (e.g. via
263C<perl:string> action bound to it (see description of the B<keysym> 552a C<perl:string> action bound to a key, see description of the B<keysym>
264resource in the @@RXVT_NAME@@(1) manpage). 553resource in the @@RXVT_NAME@@(1) manpage).
265 554
555The event is simply the action string. This interface is assumed to change
556slightly in the future.
557
558=item on_x_event $term, $event
559
560Called on every X event received on the vt window (and possibly other
561windows). Should only be used as a last resort. Most event structure
562members are not passed.
563
564=item on_focus_in $term
565
566Called whenever the window gets the keyboard focus, before rxvt-unicode
567does focus in processing.
568
569=item on_focus_out $term
570
571Called wheneever the window loses keyboard focus, before rxvt-unicode does
572focus out processing.
573
574=item on_configure_notify $term, $event
575
576=item on_property_notify $term, $event
577
266=item on_key_press $term, $event, $octets 578=item on_key_press $term, $event, $keysym, $octets
267 579
268=item on_key_release $term, $event 580=item on_key_release $term, $event, $keysym
269 581
270=item on_button_press $term, $event 582=item on_button_press $term, $event
271 583
272=item on_button_release $term, $event 584=item on_button_release $term, $event
273 585
274=item on_motion_notify $term, $event 586=item on_motion_notify $term, $event
275 587
588=item on_map_notify $term, $event
589
590=item on_unmap_notify $term, $event
591
276Called whenever the corresponding X event is received for the terminal 592Called whenever the corresponding X event is received for the terminal If
277(see the XEvent manpage) If the hook returns true, then the even will be 593the hook returns true, then the even will be ignored by rxvt-unicode.
278ignored by rxvt-unicode. 594
595The event is a hash with most values as named by Xlib (see the XEvent
596manpage), with the additional members C<row> and C<col>, which are the
597(real, not screen-based) row and column under the mouse cursor.
279 598
280C<on_key_press> additionally receives the string rxvt-unicode would 599C<on_key_press> additionally receives the string rxvt-unicode would
281output, if any, in locale-specific encoding. 600output, if any, in locale-specific encoding.
282 601
283subwindow. 602subwindow.
284 603
604=item on_client_message $term, $event
605
606=item on_wm_protocols $term, $event
607
608=item on_wm_delete_window $term, $event
609
610Called when various types of ClientMessage events are received (all with
611format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
612
285=back 613=back
286 614
615=cut
616
617package urxvt;
618
619use utf8;
620use strict;
621use Carp ();
622use Scalar::Util ();
623use List::Util ();
624
625our $VERSION = 1;
626our $TERM;
627our @TERM_INIT;
628our @TERM_EXT;
629our @HOOKNAME;
630our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
631our %OPTION;
632
633our $LIBDIR;
634our $RESNAME;
635our $RESCLASS;
636our $RXVTNAME;
637
638our $NOCHAR = chr 0xffff;
639
287=head2 Variables in the C<urxvt> Package 640=head2 Variables in the C<urxvt> Package
288 641
289=over 4 642=over 4
290 643
644=item $urxvt::LIBDIR
645
646The rxvt-unicode library directory, where, among other things, the perl
647modules and scripts are stored.
648
649=item $urxvt::RESCLASS, $urxvt::RESCLASS
650
651The resource class and name rxvt-unicode uses to look up X resources.
652
653=item $urxvt::RXVTNAME
654
655The basename of the installed binaries, usually C<urxvt>.
656
291=item $urxvt::TERM 657=item $urxvt::TERM
292 658
293The current terminal. Whenever a callback/Hook is bein executed, this 659The current terminal. This variable stores the current C<urxvt::term>
294variable stores the current C<urxvt::term> object. 660object, whenever a callback/hook is executing.
661
662=item @urxvt::TERM_INIT
663
664All coderefs in this array will be called as methods of the next newly
665created C<urxvt::term> object (during the C<on_init> phase). The array
666gets cleared before the codereferences that were in it are being executed,
667so coderefs can push themselves onto it again if they so desire.
668
669This complements to the perl-eval commandline option, but gets executed
670first.
671
672=item @urxvt::TERM_EXT
673
674Works similar to C<@TERM_INIT>, but contains perl package/class names, which
675get registered as normal extensions after calling the hooks in C<@TERM_INIT>
676but before other extensions. Gets cleared just like C<@TERM_INIT>.
295 677
296=back 678=back
297 679
298=head2 Functions in the C<urxvt> Package 680=head2 Functions in the C<urxvt> Package
299 681
300=over 4 682=over 4
301
302=item $term = new urxvt [arg...]
303
304Creates a new terminal, very similar as if you had started it with
305C<system $binfile, arg...>. Croaks (and probably outputs an error message)
306if the new instance couldn't be created. Returns C<undef> if the new
307instance didn't initialise perl, and the terminal object otherwise. The
308C<init> and C<start> hooks will be called during the call.
309 683
310=item urxvt::fatal $errormessage 684=item urxvt::fatal $errormessage
311 685
312Fatally aborts execution with the given error message. Avoid at all 686Fatally aborts execution with the given error message. Avoid at all
313costs! The only time this is acceptable is when the terminal process 687costs! The only time this is acceptable is when the terminal process
320that calls this function. 694that calls this function.
321 695
322Using this function has the advantage that its output ends up in the 696Using this function has the advantage that its output ends up in the
323correct place, e.g. on stderr of the connecting urxvtc client. 697correct place, e.g. on stderr of the connecting urxvtc client.
324 698
699Messages have a size limit of 1023 bytes currently.
700
701=item @terms = urxvt::termlist
702
703Returns all urxvt::term objects that exist in this process, regardless of
704wether they are started, being destroyed etc., so be careful. Only term
705objects that have perl extensions attached will be returned (because there
706is no urxvt::term objet associated with others).
707
325=item $time = urxvt::NOW 708=item $time = urxvt::NOW
326 709
327Returns the "current time" (as per the event loop). 710Returns the "current time" (as per the event loop).
711
712=item urxvt::CurrentTime
713
714=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
715Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
716Button4Mask, Button5Mask, AnyModifier
717
718=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
719ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
720PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
721Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
722KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
723ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
724FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
725
726=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
727EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
728GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
729UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
730ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
731CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
732SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
733
734Various constants for use in X calls and event processing.
328 735
329=back 736=back
330 737
331=head2 RENDITION 738=head2 RENDITION
332 739
359 766
360=item $background = urxvt::GET_BASEBG $rend 767=item $background = urxvt::GET_BASEBG $rend
361 768
362Return the foreground/background colour index, respectively. 769Return the foreground/background colour index, respectively.
363 770
364=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 771=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
365 772
366=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 773=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
774
775=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
367 776
368Replace the foreground/background colour in the rendition mask with the 777Replace the foreground/background colour in the rendition mask with the
369specified one. 778specified one.
370 779
371=item $value = urxvt::GET_CUSTOM ($rend) 780=item $value = urxvt::GET_CUSTOM $rend
372 781
373Return the "custom" value: Every rendition has 5 bits for use by 782Return the "custom" value: Every rendition has 5 bits for use by
374extensions. They can be set and changed as you like and are initially 783extensions. They can be set and changed as you like and are initially
375zero. 784zero.
376 785
377=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 786=item $rend = urxvt::SET_CUSTOM $rend, $new_value
378 787
379Change the custom value. 788Change the custom value.
380 789
381=back 790=back
382 791
383=cut 792=cut
384 793
385package urxvt;
386
387use strict;
388use Scalar::Util ();
389
390our $TERM;
391our @HOOKNAME;
392our $LIBDIR;
393
394BEGIN { 794BEGIN {
395 urxvt->bootstrap;
396
397 # overwrite perl's warn 795 # overwrite perl's warn
398 *CORE::GLOBAL::warn = sub { 796 *CORE::GLOBAL::warn = sub {
399 my $msg = join "", @_; 797 my $msg = join "", @_;
400 $msg .= "\n" 798 $msg .= "\n"
401 unless $msg =~ /\n$/; 799 unless $msg =~ /\n$/;
402 urxvt::warn ($msg); 800 urxvt::warn ($msg);
403 }; 801 };
404} 802}
405 803
406my @hook_count; 804no warnings 'utf8';
805
407my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 806my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
408 807
409sub verbose { 808sub verbose {
410 my ($level, $msg) = @_; 809 my ($level, $msg) = @_;
411 warn "$msg\n" if $level <= $verbosity; 810 warn "$msg\n" if $level <= $verbosity;
412} 811}
413 812
414# find on_xxx subs in the package and register them 813my %extension_pkg;
415# as hooks
416sub register_package($) {
417 my ($pkg) = @_;
418
419 for my $htype (0.. $#HOOKNAME) {
420 my $name = $HOOKNAME[$htype];
421
422 my $ref = $pkg->can ("on_" . lc $name)
423 or next;
424
425 $TERM->{_hook}[$htype]{$pkg} = $ref;
426 $hook_count[$htype]++
427 or set_should_invoke $htype, 1;
428 }
429}
430
431my $script_pkg = "script0000";
432my %script_pkg;
433 814
434# load a single script into its own package, once only 815# load a single script into its own package, once only
435sub script_package($) { 816sub extension_package($) {
436 my ($path) = @_; 817 my ($path) = @_;
437 818
438 $script_pkg{$path} ||= do { 819 $extension_pkg{$path} ||= do {
439 my $pkg = "urxvt::" . ($script_pkg++); 820 $path =~ /([^\/\\]+)$/;
821 my $pkg = $1;
822 $pkg =~ s/[^[:word:]]/_/g;
823 $pkg = "urxvt::ext::$pkg";
440 824
441 verbose 3, "loading script '$path' into package '$pkg'"; 825 verbose 3, "loading extension '$path' into package '$pkg'";
442 826
443 open my $fh, "<:raw", $path 827 open my $fh, "<:raw", $path
444 or die "$path: $!"; 828 or die "$path: $!";
445 829
446 my $source = "package $pkg; use strict; use utf8;\n" 830 my $source =
831 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
447 . "#line 1 \"$path\"\n{\n" 832 . "#line 1 \"$path\"\n{\n"
448 . (do { local $/; <$fh> }) 833 . (do { local $/; <$fh> })
449 . "\n};\n1"; 834 . "\n};\n1";
450 835
836 eval $source
451 eval $source or die "$path: $@"; 837 or die "$path: $@";
452 838
453 $pkg 839 $pkg
454 } 840 }
455} 841}
456 842
461 local $TERM = shift; 847 local $TERM = shift;
462 my $htype = shift; 848 my $htype = shift;
463 849
464 if ($htype == 0) { # INIT 850 if ($htype == 0) { # INIT
465 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 851 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
852
853 my %ext_arg;
466 854
855 {
856 my @init = @TERM_INIT;
857 @TERM_INIT = ();
858 $_->($TERM) for @init;
859 my @pkg = @TERM_EXT;
860 @TERM_EXT = ();
861 $TERM->register_package ($_) for @pkg;
862 }
863
467 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) { 864 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
865 if ($_ eq "default") {
866 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
867 } elsif (/^-(.*)$/) {
868 delete $ext_arg{$1};
869 } elsif (/^([^<]+)<(.*)>$/) {
870 push @{ $ext_arg{$1} }, $2;
871 } else {
872 $ext_arg{$_} ||= [];
873 }
874 }
875
876 for my $ext (sort keys %ext_arg) {
468 my @files = grep -f $_, map "$_/$ext", @dirs; 877 my @files = grep -f $_, map "$_/$ext", @dirs;
469 878
470 if (@files) { 879 if (@files) {
471 register_package script_package $files[0]; 880 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
472 } else { 881 } else {
473 warn "perl extension '$ext' not found in perl library search path\n"; 882 warn "perl extension '$ext' not found in perl library search path\n";
474 } 883 }
475 } 884 }
885
886 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
887 warn $@ if $@;
476 } 888 }
477 889
478 $retval = undef; 890 $retval = undef;
479 891
480 if (my $cb = $TERM->{_hook}[$htype]) { 892 if (my $cb = $TERM->{_hook}[$htype]) {
482 if $verbosity >= 10; 894 if $verbosity >= 10;
483 895
484 keys %$cb; 896 keys %$cb;
485 897
486 while (my ($pkg, $cb) = each %$cb) { 898 while (my ($pkg, $cb) = each %$cb) {
487 $retval = $cb->( 899 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
488 $TERM->{_pkg}{$pkg} ||= do { 900 $retval ||= $retval_;
489 my $proxy = bless { }, urxvt::term::proxy::;
490 Scalar::Util::weaken ($proxy->{term} = $TERM);
491 $proxy
492 },
493 @_,
494 ) and last;
495 }
496 }
497 901
498 if ($htype == 1) { # DESTROY 902 if ($@) {
499 # remove hooks if unused 903 $TERM->ungrab; # better to lose the grab than the session
500 if (my $hook = $TERM->{_hook}) { 904 warn $@;
501 for my $htype (0..$#$hook) {
502 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
503 or set_should_invoke $htype, 0;
504 } 905 }
505 } 906 }
506 907
908 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
909 if $verbosity >= 11;
910 }
911
912 if ($htype == 1) { # DESTROY
507 # clear package objects 913 # clear package objects
508 %$_ = () for values %{ $TERM->{_pkg} }; 914 %$_ = () for values %{ $TERM->{_pkg} };
509 915
510 # clear package 916 # clear package
511 %$TERM = (); 917 %$TERM = ();
512 } 918 }
513 919
514 $retval 920 $retval
515} 921}
516 922
517sub urxvt::term::proxy::AUTOLOAD { 923sub SET_COLOR($$$) {
518 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 924 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
925}
926
927# urxvt::term::extension
928
929package urxvt::term::extension;
930
931sub enable {
932 my ($self, %hook) = @_;
933 my $pkg = $self->{_pkg};
934
935 while (my ($name, $cb) = each %hook) {
936 my $htype = $HOOKTYPE{uc $name};
937 defined $htype
938 or Carp::croak "unsupported hook type '$name'";
939
940 $self->set_should_invoke ($htype, +1)
941 unless exists $self->{term}{_hook}[$htype]{$pkg};
942
943 $self->{term}{_hook}[$htype]{$pkg} = $cb;
944 }
945}
946
947sub disable {
948 my ($self, @hook) = @_;
949 my $pkg = $self->{_pkg};
950
951 for my $name (@hook) {
952 my $htype = $HOOKTYPE{uc $name};
953 defined $htype
954 or Carp::croak "unsupported hook type '$name'";
955
956 $self->set_should_invoke ($htype, -1)
957 if delete $self->{term}{_hook}[$htype]{$pkg};
958 }
959}
960
961our $AUTOLOAD;
962
963sub AUTOLOAD {
964 $AUTOLOAD =~ /:([^:]+)$/
519 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 965 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
520 966
521 eval qq{ 967 eval qq{
522 sub $urxvt::term::proxy::AUTOLOAD { 968 sub $AUTOLOAD {
523 my \$proxy = shift; 969 my \$proxy = shift;
524 \$proxy->{term}->$1 (\@_) 970 \$proxy->{term}->$1 (\@_)
525 } 971 }
526 1 972 1
527 } or die "FATAL: unable to compile method forwarder: $@"; 973 } or die "FATAL: unable to compile method forwarder: $@";
528 974
529 goto &$urxvt::term::proxy::AUTOLOAD; 975 goto &$AUTOLOAD;
530} 976}
977
978sub DESTROY {
979 # nop
980}
981
982# urxvt::destroy_hook
983
984sub urxvt::destroy_hook::DESTROY {
985 ${$_[0]}->();
986}
987
988sub urxvt::destroy_hook(&) {
989 bless \shift, urxvt::destroy_hook::
990}
991
992package urxvt::anyevent;
993
994=head2 The C<urxvt::anyevent> Class
995
996The sole purpose of this class is to deliver an interface to the
997C<AnyEvent> module - any module using it will work inside urxvt without
998further programming. The only exception is that you cannot wait on
999condition variables, but non-blocking condvar use is ok. What this means
1000is that you cannot use blocking APIs, but the non-blocking variant should
1001work.
1002
1003=cut
1004
1005our $VERSION = 1;
1006
1007$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
1008push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
1009
1010sub timer {
1011 my ($class, %arg) = @_;
1012
1013 my $cb = $arg{cb};
1014
1015 urxvt::timer
1016 ->new
1017 ->start (urxvt::NOW + $arg{after})
1018 ->cb (sub {
1019 $_[0]->stop; # need to cancel manually
1020 $cb->();
1021 })
1022}
1023
1024sub io {
1025 my ($class, %arg) = @_;
1026
1027 my $cb = $arg{cb};
1028
1029 bless [$arg{fh}, urxvt::iow
1030 ->new
1031 ->fd (fileno $arg{fh})
1032 ->events (($arg{poll} =~ /r/ ? 1 : 0)
1033 | ($arg{poll} =~ /w/ ? 2 : 0))
1034 ->start
1035 ->cb (sub {
1036 $cb->(($_[1] & 1 ? 'r' : '')
1037 . ($_[1] & 2 ? 'w' : ''));
1038 })],
1039 urxvt::anyevent::
1040}
1041
1042sub DESTROY {
1043 $_[0][1]->stop;
1044}
1045
1046sub condvar {
1047 bless \my $flag, urxvt::anyevent::condvar::
1048}
1049
1050sub urxvt::anyevent::condvar::broadcast {
1051 ${$_[0]}++;
1052}
1053
1054sub urxvt::anyevent::condvar::wait {
1055 unless (${$_[0]}) {
1056 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
1057 }
1058}
1059
1060package urxvt::term;
531 1061
532=head2 The C<urxvt::term> Class 1062=head2 The C<urxvt::term> Class
533 1063
534=over 4 1064=over 4
535 1065
1066=cut
1067
1068# find on_xxx subs in the package and register them
1069# as hooks
1070sub register_package {
1071 my ($self, $pkg, $argv) = @_;
1072
1073 no strict 'refs';
1074
1075 urxvt::verbose 6, "register package $pkg to $self";
1076
1077 @{"$pkg\::ISA"} = urxvt::term::extension::;
1078
1079 my $proxy = bless {
1080 _pkg => $pkg,
1081 argv => $argv,
1082 }, $pkg;
1083 Scalar::Util::weaken ($proxy->{term} = $self);
1084
1085 $self->{_pkg}{$pkg} = $proxy;
1086
1087 for my $name (@HOOKNAME) {
1088 if (my $ref = $pkg->can ("on_" . lc $name)) {
1089 $proxy->enable ($name => $ref);
1090 }
1091 }
1092}
1093
1094=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1095
1096Creates a new terminal, very similar as if you had started it with system
1097C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1098hash which defines the environment of the new terminal.
1099
1100Croaks (and probably outputs an error message) if the new instance
1101couldn't be created. Returns C<undef> if the new instance didn't
1102initialise perl, and the terminal object otherwise. The C<init> and
1103C<start> hooks will be called before this call returns, and are free to
1104refer to global data (which is race free).
1105
1106=cut
1107
1108sub new {
1109 my ($class, $env, @args) = @_;
1110
1111 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1112 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1113
1114 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1115}
1116
536=item $term->destroy 1117=item $term->destroy
537 1118
538Destroy the terminal object (close the window, free resources etc.). 1119Destroy the terminal object (close the window, free resources
1120etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1121watchers (timers, io watchers) are still active.
1122
1123=item $term->exec_async ($cmd[, @args])
1124
1125Works like the combination of the C<fork>/C<exec> builtins, which executes
1126("starts") programs in the background. This function takes care of setting
1127the user environment before exec'ing the command (e.g. C<PATH>) and should
1128be preferred over explicit calls to C<exec> or C<system>.
1129
1130Returns the pid of the subprocess or C<undef> on error.
1131
1132=cut
1133
1134sub exec_async {
1135 my $self = shift;
1136
1137 my $pid = fork;
1138
1139 return $pid
1140 if !defined $pid or $pid;
1141
1142 %ENV = %{ $self->env };
1143
1144 exec @_;
1145 urxvt::_exit 255;
1146}
1147
1148=item $isset = $term->option ($optval[, $set])
1149
1150Returns true if the option specified by C<$optval> is enabled, and
1151optionally change it. All option values are stored by name in the hash
1152C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
1153
1154Here is a a likely non-exhaustive list of option names, please see the
1155source file F</src/optinc.h> to see the actual list:
1156
1157 borderLess console cursorBlink cursorUnderline hold iconic insecure
1158 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
1159 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
1160 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
1161 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
1162 transparent tripleclickwords utmpInhibit visualBell
539 1163
540=item $value = $term->resource ($name[, $newval]) 1164=item $value = $term->resource ($name[, $newval])
541 1165
542Returns the current resource value associated with a given name and 1166Returns the current resource value associated with a given name and
543optionally sets a new value. Setting values is most useful in the C<init> 1167optionally sets a new value. Setting values is most useful in the C<init>
553 1177
554Please note that resource strings will currently only be freed when the 1178Please note that resource strings will currently only be freed when the
555terminal is destroyed, so changing options frequently will eat memory. 1179terminal is destroyed, so changing options frequently will eat memory.
556 1180
557Here is a a likely non-exhaustive list of resource names, not all of which 1181Here is a a likely non-exhaustive list of resource names, not all of which
558are supported in every build, please see the source to see the actual 1182are supported in every build, please see the source file F</src/rsinc.h>
559list: 1183to see the actual list:
560 1184
561 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1185 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
562 borderLess color cursorBlink cursorUnderline cutchars delete_key 1186 borderLess color cursorBlink cursorUnderline cutchars delete_key
563 display_name embed ext_bwidth fade font geometry hold iconName 1187 display_name embed ext_bwidth fade font geometry hold iconName
564 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1188 imFont imLocale inputMethod insecure int_bwidth intensityStyles
565 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1189 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
566 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1190 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
567 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1191 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
568 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1192 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
569 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1193 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
570 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1194 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
571 shade term_name title transparent transparent_all tripleclickwords 1195 secondaryScreen secondaryScroll selectstyle shade term_name title
572 utmpInhibit visualBell 1196 transient_for transparent transparent_all tripleclickwords utmpInhibit
1197 visualBell
573 1198
574=cut 1199=cut
575 1200
576sub urxvt::term::resource($$;$) { 1201sub resource($$;$) {
577 my ($self, $name) = (shift, shift); 1202 my ($self, $name) = (shift, shift);
578 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1203 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
579 goto &urxvt::term::_resource; 1204 &urxvt::term::_resource
580} 1205}
1206
1207=item $value = $term->x_resource ($pattern)
1208
1209Returns the X-Resource for the given pattern, excluding the program or
1210class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1211same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1212resource with that pattern exists.
1213
1214This method should only be called during the C<on_start> hook, as there is
1215only one resource database per display, and later invocations might return
1216the wrong resources.
1217
1218=item $success = $term->parse_keysym ($keysym_spec, $command_string)
1219
1220Adds a keymap translation exactly as specified via a resource. See the
1221C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
581 1222
582=item $rend = $term->rstyle ([$new_rstyle]) 1223=item $rend = $term->rstyle ([$new_rstyle])
583 1224
584Return and optionally change the current rendition. Text that is output by 1225Return and optionally change the current rendition. Text that is output by
585the terminal application will use this style. 1226the terminal application will use this style.
596=item ($row, $col) = $term->selection_end ([$row, $col]) 1237=item ($row, $col) = $term->selection_end ([$row, $col])
597 1238
598Return the current values of the selection mark, begin or end positions, 1239Return the current values of the selection mark, begin or end positions,
599and optionally set them to new values. 1240and optionally set them to new values.
600 1241
1242=item $term->selection_make ($eventtime[, $rectangular])
1243
1244Tries to make a selection as set by C<selection_beg> and
1245C<selection_end>. If C<$rectangular> is true (default: false), a
1246rectangular selection will be made. This is the prefered function to make
1247a selection.
1248
601=item $success = $term->selection_grab ($eventtime) 1249=item $success = $term->selection_grab ($eventtime)
602 1250
603Try to request the primary selection from the server (for example, as set 1251Try to request the primary selection text from the server (for example, as
604by the next method). 1252set by the next method). No visual feedback will be given. This function
1253is mostly useful from within C<on_sel_grab> hooks.
605 1254
606=item $oldtext = $term->selection ([$newtext]) 1255=item $oldtext = $term->selection ([$newtext])
607 1256
608Return the current selection text and optionally replace it by C<$newtext>. 1257Return the current selection text and optionally replace it by C<$newtext>.
609 1258
610#=item $term->overlay ($x, $y, $text) 1259=item $term->overlay_simple ($x, $y, $text)
611# 1260
612#Create a simple multi-line overlay box. See the next method for details. 1261Create a simple multi-line overlay box. See the next method for details.
613# 1262
614#=cut 1263=cut
615# 1264
616#sub urxvt::term::scr_overlay { 1265sub overlay_simple {
617# my ($self, $x, $y, $text) = @_; 1266 my ($self, $x, $y, $text) = @_;
618# 1267
619# my @lines = split /\n/, $text; 1268 my @lines = split /\n/, $text;
620# 1269
621# my $w = 0; 1270 my $w = List::Util::max map $self->strwidth ($_), @lines;
622# for (map $self->strwidth ($_), @lines) { 1271
623# $w = $_ if $w < $_;
624# }
625#
626# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1272 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
627# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1273 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
628#} 1274
1275 $overlay
1276}
629 1277
630=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1278=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
631 1279
632Create a new (empty) overlay at the given position with the given 1280Create a new (empty) overlay at the given position with the given
633width/height. C<$rstyle> defines the initial rendition style 1281width/height. C<$rstyle> defines the initial rendition style
660 1308
661If hidden, display the overlay again. 1309If hidden, display the overlay again.
662 1310
663=back 1311=back
664 1312
1313=item $popup = $term->popup ($event)
1314
1315Creates a new C<urxvt::popup> object that implements a popup menu. The
1316C<$event> I<must> be the event causing the menu to pop up (a button event,
1317currently).
1318
1319=cut
1320
1321sub popup {
1322 my ($self, $event) = @_;
1323
1324 $self->grab ($event->{time}, 1)
1325 or return;
1326
1327 my $popup = bless {
1328 term => $self,
1329 event => $event,
1330 }, urxvt::popup::;
1331
1332 Scalar::Util::weaken $popup->{term};
1333
1334 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
1335 Scalar::Util::weaken $self->{_destroy}{$popup};
1336
1337 $popup
1338}
1339
665=item $cellwidth = $term->strwidth $string 1340=item $cellwidth = $term->strwidth ($string)
666 1341
667Returns the number of screen-cells this string would need. Correctly 1342Returns the number of screen-cells this string would need. Correctly
668accounts for wide and combining characters. 1343accounts for wide and combining characters.
669 1344
670=item $octets = $term->locale_encode $string 1345=item $octets = $term->locale_encode ($string)
671 1346
672Convert the given text string into the corresponding locale encoding. 1347Convert the given text string into the corresponding locale encoding.
673 1348
674=item $string = $term->locale_decode $octets 1349=item $string = $term->locale_decode ($octets)
675 1350
676Convert the given locale-encoded octets into a perl string. 1351Convert the given locale-encoded octets into a perl string.
1352
1353=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1354
1355XORs the rendition values in the given span with the provided value
1356(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1357refresh hooks to provide effects similar to the selection.
1358
1359=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1360
1361Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1362whitespace will additionally be xored with the C<$rstyle2>, which defaults
1363to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1364it instead. Both styles I<MUST NOT> contain font styles.
1365
1366=item $term->scr_bell
1367
1368Ring the bell!
677 1369
678=item $term->scr_add_lines ($string) 1370=item $term->scr_add_lines ($string)
679 1371
680Write the given text string to the screen, as if output by the application 1372Write the given text string to the screen, as if output by the application
681running inside the terminal. It may not contain command sequences (escape 1373running inside the terminal. It may not contain command sequences (escape
684 1376
685Normally its not a good idea to use this function, as programs might be 1377Normally its not a good idea to use this function, as programs might be
686confused by changes in cursor position or scrolling. Its useful inside a 1378confused by changes in cursor position or scrolling. Its useful inside a
687C<on_add_lines> hook, though. 1379C<on_add_lines> hook, though.
688 1380
1381=item $term->scr_change_screen ($screen)
1382
1383Switch to given screen - 0 primary, 1 secondary.
1384
689=item $term->cmd_parse ($octets) 1385=item $term->cmd_parse ($octets)
690 1386
691Similar to C<scr_add_lines>, but the argument must be in the 1387Similar to C<scr_add_lines>, but the argument must be in the
692locale-specific encoding of the terminal and can contain command sequences 1388locale-specific encoding of the terminal and can contain command sequences
693(escape codes) that will be interpreted. 1389(escape codes) that will be interpreted.
696 1392
697Write the octets given in C<$data> to the tty (i.e. as program input). To 1393Write the octets given in C<$data> to the tty (i.e. as program input). To
698pass characters instead of octets, you should convert your strings first 1394pass characters instead of octets, you should convert your strings first
699to the locale-specific encoding using C<< $term->locale_encode >>. 1395to the locale-specific encoding using C<< $term->locale_encode >>.
700 1396
1397=item $old_events = $term->pty_ev_events ([$new_events])
1398
1399Replaces the event mask of the pty watcher by the given event mask. Can
1400be used to suppress input and output handling to the pty/tty. See the
1401description of C<< urxvt::timer->events >>. Make sure to always restore
1402the previous value.
1403
1404=item $fd = $term->pty_fd
1405
1406Returns the master file descriptor for the pty in use, or C<-1> if no pty
1407is used.
1408
1409=item $windowid = $term->parent
1410
1411Return the window id of the toplevel window.
1412
1413=item $windowid = $term->vt
1414
1415Return the window id of the terminal window.
1416
1417=item $term->vt_emask_add ($x_event_mask)
1418
1419Adds the specified events to the vt event mask. Useful e.g. when you want
1420to receive pointer events all the times:
1421
1422 $term->vt_emask_add (urxvt::PointerMotionMask);
1423
1424=item $term->focus_in
1425
1426=item $term->focus_out
1427
1428=item $term->key_press ($state, $keycode[, $time])
1429
1430=item $term->key_release ($state, $keycode[, $time])
1431
1432Deliver various fake events to to terminal.
1433
701=item $window_width = $term->width 1434=item $window_width = $term->width
702 1435
703=item $window_height = $term->height 1436=item $window_height = $term->height
704 1437
705=item $font_width = $term->fwidth 1438=item $font_width = $term->fwidth
718 1451
719=item $max_scrollback = $term->saveLines 1452=item $max_scrollback = $term->saveLines
720 1453
721=item $nrow_plus_saveLines = $term->total_rows 1454=item $nrow_plus_saveLines = $term->total_rows
722 1455
723=item $lines_in_scrollback = $term->nsaved 1456=item $topmost_scrollback_row = $term->top_row
724 1457
725Return various integers describing terminal characteristics. 1458Return various integers describing terminal characteristics.
726 1459
1460=item $x_display = $term->display_id
1461
1462Return the DISPLAY used by rxvt-unicode.
1463
1464=item $lc_ctype = $term->locale
1465
1466Returns the LC_CTYPE category string used by this rxvt-unicode.
1467
1468=item $env = $term->env
1469
1470Returns a copy of the environment in effect for the terminal as a hashref
1471similar to C<\%ENV>.
1472
1473=cut
1474
1475sub env {
1476 if (my $env = $_[0]->_env) {
1477 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1478 } else {
1479 +{ %ENV }
1480 }
1481}
1482
1483=item $modifiermask = $term->ModLevel3Mask
1484
1485=item $modifiermask = $term->ModMetaMask
1486
1487=item $modifiermask = $term->ModNumLockMask
1488
1489Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1490AltGr), the meta key (often Alt) and the num lock key, if applicable.
1491
1492=item $screen = $term->current_screen
1493
1494Returns the currently displayed screen (0 primary, 1 secondary).
1495
1496=item $cursor_is_hidden = $term->hidden_cursor
1497
1498Returns wether the cursor is currently hidden or not.
1499
727=item $view_start = $term->view_start ([$newvalue]) 1500=item $view_start = $term->view_start ([$newvalue])
728 1501
729Returns the negative row number of the topmost line. Minimum value is 1502Returns the row number of the topmost displayed line. Maximum value is
730C<0>, which displays the normal terminal contents. Larger values scroll 1503C<0>, which displays the normal terminal contents. Lower values scroll
731this many lines into the scrollback buffer. 1504this many lines into the scrollback buffer.
732 1505
733=item $term->want_refresh 1506=item $term->want_refresh
734 1507
735Requests a screen refresh. At the next opportunity, rxvt-unicode will 1508Requests a screen refresh. At the next opportunity, rxvt-unicode will
750line, starting at column C<$start_col> (default C<0>), which is useful 1523line, starting at column C<$start_col> (default C<0>), which is useful
751to replace only parts of a line. The font index in the rendition will 1524to replace only parts of a line. The font index in the rendition will
752automatically be updated. 1525automatically be updated.
753 1526
754C<$text> is in a special encoding: tabs and wide characters that use more 1527C<$text> is in a special encoding: tabs and wide characters that use more
755than one cell when displayed are padded with urxvt::NOCHAR characters 1528than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
756(C<chr 65535>). Characters with combining characters and other characters 1529characters. Characters with combining characters and other characters that
757that do not fit into the normal tetx encoding will be replaced with 1530do not fit into the normal tetx encoding will be replaced with characters
758characters in the private use area. 1531in the private use area.
759 1532
760You have to obey this encoding when changing text. The advantage is 1533You have to obey this encoding when changing text. The advantage is
761that C<substr> and similar functions work on screen cells and not on 1534that C<substr> and similar functions work on screen cells and not on
762characters. 1535characters.
763 1536
814Return the row number of the first/last row of the line, respectively. 1587Return the row number of the first/last row of the line, respectively.
815 1588
816=item $offset = $line->offset_of ($row, $col) 1589=item $offset = $line->offset_of ($row, $col)
817 1590
818Returns the character offset of the given row|col pair within the logical 1591Returns the character offset of the given row|col pair within the logical
819line. 1592line. Works for rows outside the line, too, and returns corresponding
1593offsets outside the string.
820 1594
821=item ($row, $col) = $line->coord_of ($offset) 1595=item ($row, $col) = $line->coord_of ($offset)
822 1596
823Translates a string offset into terminal coordinates again. 1597Translates a string offset into terminal coordinates again.
824 1598
825=back 1599=back
826 1600
827=cut 1601=cut
828 1602
829sub urxvt::term::line { 1603sub line {
830 my ($self, $row) = @_; 1604 my ($self, $row) = @_;
831 1605
832 my $maxrow = $self->nrow - 1; 1606 my $maxrow = $self->nrow - 1;
833 1607
834 my ($beg, $end) = ($row, $row); 1608 my ($beg, $end) = ($row, $row);
898 $offset / $self->{ncol} + $self->{beg}, 1672 $offset / $self->{ncol} + $self->{beg},
899 $offset % $self->{ncol} 1673 $offset % $self->{ncol}
900 ) 1674 )
901} 1675}
902 1676
903=item ($row, $col) = $line->coord_of ($offset)
904=item $text = $term->special_encode $string 1677=item $text = $term->special_encode $string
905 1678
906Converts a perl string into the special encoding used by rxvt-unicode, 1679Converts a perl string into the special encoding used by rxvt-unicode,
907where one character corresponds to one screen cell. See 1680where one character corresponds to one screen cell. See
908C<< $term->ROW_t >> for details. 1681C<< $term->ROW_t >> for details.
910=item $string = $term->special_decode $text 1683=item $string = $term->special_decode $text
911 1684
912Converts rxvt-unicodes text reprsentation into a perl string. See 1685Converts rxvt-unicodes text reprsentation into a perl string. See
913C<< $term->ROW_t >> for details. 1686C<< $term->ROW_t >> for details.
914 1687
1688=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1689
1690=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1691
1692Register/unregister a synchronous button grab. See the XGrabButton
1693manpage.
1694
1695=item $success = $term->grab ($eventtime[, $sync])
1696
1697Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1698synchronous (C<$sync> is true). Also remembers the grab timestampe.
1699
1700=item $term->allow_events_async
1701
1702Calls XAllowEvents with AsyncBoth for the most recent grab.
1703
1704=item $term->allow_events_sync
1705
1706Calls XAllowEvents with SyncBoth for the most recent grab.
1707
1708=item $term->allow_events_replay
1709
1710Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1711recent grab.
1712
1713=item $term->ungrab
1714
1715Calls XUngrab for the most recent grab. Is called automatically on
1716evaluation errors, as it is better to lose the grab in the error case as
1717the session.
1718
1719=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1720
1721=item $atom_name = $term->XGetAtomName ($atom)
1722
1723=item @atoms = $term->XListProperties ($window)
1724
1725=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1726
1727=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1728
1729=item $term->XDeleteProperty ($window, $property)
1730
1731=item $window = $term->DefaultRootWindow
1732
1733=item $term->XReparentWindow ($window, $parent, [$x, $y])
1734
1735=item $term->XMapWindow ($window)
1736
1737=item $term->XUnmapWindow ($window)
1738
1739=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1740
1741=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1742
1743=item $term->XChangeInput ($window, $add_events[, $del_events])
1744
1745Various X or X-related functions. The C<$term> object only serves as
1746the source of the display, otherwise those functions map more-or-less
1747directory onto the X functions of the same name.
1748
915=back 1749=back
1750
1751=cut
1752
1753package urxvt::popup;
1754
1755=head2 The C<urxvt::popup> Class
1756
1757=over 4
1758
1759=cut
1760
1761sub add_item {
1762 my ($self, $item) = @_;
1763
1764 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1765 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1766 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1767
1768 $item->{render} ||= sub { $_[0]{text} };
1769
1770 push @{ $self->{item} }, $item;
1771}
1772
1773=item $popup->add_title ($title)
1774
1775Adds a non-clickable title to the popup.
1776
1777=cut
1778
1779sub add_title {
1780 my ($self, $title) = @_;
1781
1782 $self->add_item ({
1783 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1784 text => $title,
1785 activate => sub { },
1786 });
1787}
1788
1789=item $popup->add_separator ([$sepchr])
1790
1791Creates a separator, optionally using the character given as C<$sepchr>.
1792
1793=cut
1794
1795sub add_separator {
1796 my ($self, $sep) = @_;
1797
1798 $sep ||= "=";
1799
1800 $self->add_item ({
1801 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1802 text => "",
1803 render => sub { $sep x $self->{term}->ncol },
1804 activate => sub { },
1805 });
1806}
1807
1808=item $popup->add_button ($text, $cb)
1809
1810Adds a clickable button to the popup. C<$cb> is called whenever it is
1811selected.
1812
1813=cut
1814
1815sub add_button {
1816 my ($self, $text, $cb) = @_;
1817
1818 $self->add_item ({ type => "button", text => $text, activate => $cb});
1819}
1820
1821=item $popup->add_toggle ($text, $initial_value, $cb)
1822
1823Adds a toggle/checkbox item to the popup. The callback gets called
1824whenever it gets toggled, with a boolean indicating its new value as its
1825first argument.
1826
1827=cut
1828
1829sub add_toggle {
1830 my ($self, $text, $value, $cb) = @_;
1831
1832 my $item; $item = {
1833 type => "button",
1834 text => " $text",
1835 value => $value,
1836 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1837 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1838 };
1839
1840 $self->add_item ($item);
1841}
1842
1843=item $popup->show
1844
1845Displays the popup (which is initially hidden).
1846
1847=cut
1848
1849sub show {
1850 my ($self) = @_;
1851
1852 local $urxvt::popup::self = $self;
1853
1854 my $env = $self->{term}->env;
1855 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1856 delete $env->{LC_ALL};
1857 $env->{LC_CTYPE} = $self->{term}->locale;
1858
1859 urxvt::term->new ($env, "popup",
1860 "--perl-lib" => "", "--perl-ext-common" => "",
1861 "-pty-fd" => -1, "-sl" => 0,
1862 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1863 "--transient-for" => $self->{term}->parent,
1864 "-display" => $self->{term}->display_id,
1865 "-pe" => "urxvt-popup")
1866 or die "unable to create popup window\n";
1867}
1868
1869sub DESTROY {
1870 my ($self) = @_;
1871
1872 delete $self->{term}{_destroy}{$self};
1873 $self->{term}->ungrab;
1874}
1875
1876=back
1877
1878=cut
1879
1880package urxvt::watcher;
1881
1882@urxvt::timer::ISA = __PACKAGE__;
1883@urxvt::iow::ISA = __PACKAGE__;
1884@urxvt::pw::ISA = __PACKAGE__;
1885@urxvt::iw::ISA = __PACKAGE__;
916 1886
917=head2 The C<urxvt::timer> Class 1887=head2 The C<urxvt::timer> Class
918 1888
919This class implements timer watchers/events. Time is represented as a 1889This class implements timer watchers/events. Time is represented as a
920fractional number of seconds since the epoch. Example: 1890fractional number of seconds since the epoch. Example:
959 1929
960=item $timer = $timer->start ($tstamp) 1930=item $timer = $timer->start ($tstamp)
961 1931
962Set the event trigger time to C<$tstamp> and start the timer. 1932Set the event trigger time to C<$tstamp> and start the timer.
963 1933
1934=item $timer = $timer->after ($delay)
1935
1936Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1937
964=item $timer = $timer->stop 1938=item $timer = $timer->stop
965 1939
966Stop the timer. 1940Stop the timer.
967 1941
968=back 1942=back
973 1947
974 $term->{socket} = ... 1948 $term->{socket} = ...
975 $term->{iow} = urxvt::iow 1949 $term->{iow} = urxvt::iow
976 ->new 1950 ->new
977 ->fd (fileno $term->{socket}) 1951 ->fd (fileno $term->{socket})
978 ->events (1) # wait for read data 1952 ->events (urxvt::EVENT_READ)
979 ->start 1953 ->start
980 ->cb (sub { 1954 ->cb (sub {
981 my ($iow, $revents) = @_; 1955 my ($iow, $revents) = @_;
982 # $revents must be 1 here, no need to check 1956 # $revents must be 1 here, no need to check
983 sysread $term->{socket}, my $buf, 8192 1957 sysread $term->{socket}, my $buf, 8192
1000 1974
1001Set the filedescriptor (not handle) to watch. 1975Set the filedescriptor (not handle) to watch.
1002 1976
1003=item $iow = $iow->events ($eventmask) 1977=item $iow = $iow->events ($eventmask)
1004 1978
1005Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1979Set the event mask to watch. The only allowed values are
1006data, Bit #1 (value C<2>) enables watching for write data. 1980C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1981together, or C<urxvt::EVENT_NONE>.
1007 1982
1008=item $iow = $iow->start 1983=item $iow = $iow->start
1009 1984
1010Start watching for requested events on the given handle. 1985Start watching for requested events on the given handle.
1011 1986
1012=item $iow = $iow->stop 1987=item $iow = $iow->stop
1013 1988
1014Stop watching for events on the given filehandle. 1989Stop watching for events on the given filehandle.
1990
1991=back
1992
1993=head2 The C<urxvt::iw> Class
1994
1995This class implements idle watchers, that get called automatically when
1996the process is idle. They should return as fast as possible, after doing
1997some useful work.
1998
1999=over 4
2000
2001=item $iw = new urxvt::iw
2002
2003Create a new idle watcher object in stopped state.
2004
2005=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2006
2007Set the callback to be called when the watcher triggers.
2008
2009=item $timer = $timer->start
2010
2011Start the watcher.
2012
2013=item $timer = $timer->stop
2014
2015Stop the watcher.
2016
2017=back
2018
2019=head2 The C<urxvt::pw> Class
2020
2021This class implements process watchers. They create an event whenever a
2022process exits, after which they stop automatically.
2023
2024 my $pid = fork;
2025 ...
2026 $term->{pw} = urxvt::pw
2027 ->new
2028 ->start ($pid)
2029 ->cb (sub {
2030 my ($pw, $exit_status) = @_;
2031 ...
2032 });
2033
2034=over 4
2035
2036=item $pw = new urxvt::pw
2037
2038Create a new process watcher in stopped state.
2039
2040=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2041
2042Set the callback to be called when the timer triggers.
2043
2044=item $pw = $timer->start ($pid)
2045
2046Tells the wqtcher to start watching for process C<$pid>.
2047
2048=item $pw = $pw->stop
2049
2050Stop the watcher.
1015 2051
1016=back 2052=back
1017 2053
1018=head1 ENVIRONMENT 2054=head1 ENVIRONMENT
1019 2055
1022This variable controls the verbosity level of the perl extension. Higher 2058This variable controls the verbosity level of the perl extension. Higher
1023numbers indicate more verbose output. 2059numbers indicate more verbose output.
1024 2060
1025=over 4 2061=over 4
1026 2062
1027=item =0 - only fatal messages 2063=item == 0 - fatal messages
1028 2064
1029=item =3 - script loading and management 2065=item >= 3 - script loading and management
1030 2066
1031=item =10 - all events received 2067=item >=10 - all called hooks
2068
2069=item >=11 - hook reutrn values
1032 2070
1033=back 2071=back
1034 2072
1035=head1 AUTHOR 2073=head1 AUTHOR
1036 2074

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