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Revision 1.55 by root, Sun Jan 8 05:50:27 2006 UTC vs.
Revision 1.136 by root, Mon Feb 20 20:44:22 2006 UTC

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 (enabled by default) 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
58 91
59=back 92=back
60 93
61=item option-popup (enabled by default) 94=item option-popup (enabled by default)
62 95
63Binds a popup menu to Ctrl-Button3 that lets you toggle (some) options at 96Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64runtime. 97runtime.
65 98
66=item digital-clock 99Other extensions can extend this popup menu by pushing a code reference
100onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
101popup is being displayed.
67 102
68Displays a digital clock using the built-in overlay. 103It's sole argument is the popup menu, which can be modified. It should
104either return nothing or a string, the initial boolean value and a code
105reference. The string will be used as button text and the code reference
106will be called when the toggle changes, with the new boolean value as
107first argument.
108
109The following will add an entry C<myoption> that changes
110C<$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 @{ $self->{term}{selection_popup_hook} }, sub {
137 /a/ ? ("a to be" => sub { s/a/b/g }
138 : ()
139 };
140
141=item searchable-scrollback<hotkey> (enabled by default)
142
143Adds regex search functionality to the scrollback buffer, triggered
144by a hotkey (default: C<M-s>). While in search mode, normal terminal
145input/output is suspended and a regex is displayed at the bottom of the
146screen.
147
148Inputting characters appends them to the regex and continues incremental
149search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
150search upwards/downwards in the scrollback buffer, C<End> jumps to the
151bottom. C<Escape> leaves search mode and returns to the point where search
152was started, while C<Enter> or C<Return> stay at the current position and
153additionally stores the first match in the current line into the primary
154selection.
155
156=item readline (enabled by default)
157
158A support package that tries to make editing with readline easier. At
159the moment, it reacts to clicking shift-left mouse button by trying to
160move the text cursor to this position. It does so by generating as many
161cursor-left or cursor-right keypresses as required (the this only works
162for programs that correctly support wide characters).
163
164To avoid too many false positives, this is only done when:
165
166=over 4
167
168=item - the tty is in ICANON state.
169
170=item - the text cursor is visible.
171
172=item - the primary screen is currently being displayed.
173
174=item - the mouse is on the same (multi-row-) line as the text cursor.
175
176=back
177
178The normal selection mechanism isn't disabled, so quick successive clicks
179might interfere with selection creation in harmless ways.
180
181=item selection-autotransform
182
183This selection allows you to do automatic transforms on a selection
184whenever a selection is made.
185
186It works by specifying perl snippets (most useful is a single C<s///>
187operator) that modify C<$_> 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.
69 238
70=item mark-urls 239=item mark-urls
71 240
72Uses per-line display filtering (C<on_line_update>) to underline urls. 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
73 265
74=item block-graphics-to-ascii 266=item block-graphics-to-ascii
75 267
76A not very useful example of filtering all text output to the terminal, 268A not very useful example of filtering all text output to the terminal,
77by replacing all line-drawing characters (U+2500 .. U+259F) by a 269by replacing all line-drawing characters (U+2500 .. U+259F) by a
78similar-looking ascii character. 270similar-looking ascii character.
79 271
272=item digital-clock
273
274Displays a digital clock using the built-in overlay.
275
276=item remote-clipboard
277
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/%
324
80=item example-refresh-hooks 325=item example-refresh-hooks
81 326
82Displays 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
83window. Illustrates overwriting the refresh callbacks to create your own 328window. Illustrates overwriting the refresh callbacks to create your own
84overlays or changes. 329overlays or changes.
85 330
86=back 331=back
332
333=head1 API DOCUMENTATION
87 334
88=head2 General API Considerations 335=head2 General API Considerations
89 336
90All objects (such as terminals, time watchers etc.) are typical 337All objects (such as terminals, time watchers etc.) are typical
91reference-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
104=over 4 351=over 4
105 352
106=item $text 353=item $text
107 354
108Rxvt-unicodes special way of encoding text, where one "unicode" character 355Rxvt-unicodes special way of encoding text, where one "unicode" character
109always 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.
110 357
111=item $string 358=item $string
112 359
113A perl text string, with an emphasis on I<text>. It can store all unicode 360A perl text string, with an emphasis on I<text>. It can store all unicode
114characters and is to be distinguished with text encoded in a specific 361characters and is to be distinguished with text encoded in a specific
119Either binary data or - more common - a text string encoded in a 366Either binary data or - more common - a text string encoded in a
120locale-specific way. 367locale-specific way.
121 368
122=back 369=back
123 370
371=head2 Extension Objects
372
373Very perl extension is a perl class. A separate perl object is created
374for each terminal and each extension and passed as the first parameter to
375hooks. So extensions can use their C<$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
124=head2 Hooks 404=head2 Hooks
125 405
126The following subroutines can be declared in extension files, and will be 406The following subroutines can be declared in extension files, and will be
127called whenever the relevant event happens. 407called whenever the relevant event happens.
128 408
129The 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
130and extension package. You can call all C<urxvt::term> methods on it, but 410the in the C<Extension Objects> section.
131its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
132object that is shared between all packages is stored in the C<term>
133member. It is, however, blessed intot he package of the extension script,
134so for all practical purposes you can treat an extension script as a class.
135 411
136All 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
137counts 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
138and the relevant action might not be carried out by the C++ code. 414relevant action might not be carried out by the C++ code.
139 415
140When in doubt, return a false value (preferably C<()>). 416I<< When in doubt, return a false value (preferably C<()>). >>
141 417
142=over 4 418=over 4
143 419
144=item on_init $term 420=item on_init $term
145 421
146Called after a new terminal object has been initialized, but before 422Called after a new terminal object has been initialized, but before
147windows 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
148call or deliver senseless data, as terminal size and other characteristics 424call or deliver senseless data, as terminal size and other characteristics
149have not yet been determined. You can safely query and change resources, 425have not yet been determined. You can safely query and change resources
150though. 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).
151 438
152=item on_reset $term 439=item on_reset $term
153 440
154Called 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
155control 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
156variables. 443variables.
157 444
158=item on_start $term 445=item on_child_start $term, $pid
159 446
160Called at the very end of initialisation of a new terminal, just before 447Called just after the child process has been C<fork>ed.
161returning 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>.
162 453
163=item on_sel_make $term, $eventtime 454=item on_sel_make $term, $eventtime
164 455
165Called 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
166selection 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
180=item on_sel_extend $term 471=item on_sel_extend $term
181 472
182Called 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
183click) and is either supposed to return false (normal operation), or 474click) and is either supposed to return false (normal operation), or
184should 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
185processing. 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.
186 479
187See the F<selection> example extension. 480See the F<selection> example extension.
188 481
189=item on_view_change $term, $offset 482=item on_view_change $term, $offset
190 483
199than the scroll back buffer or the terminal. 492than the scroll back buffer or the terminal.
200 493
201It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 494It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
202$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
203number of lines that will be in the scrollback buffer. 496number of lines that will be in the scrollback buffer.
204
205=item on_tty_activity $term *NYI*
206
207Called whenever the program(s) running in the urxvt window send output.
208 497
209=item on_osc_seq $term, $string 498=item on_osc_seq $term, $string
210 499
211Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 500Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
212operating system command) is processed. Cursor position and other state 501operating system command) is processed. Cursor position and other state
225can 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
226and calling C<< $term->scr_add_lines >> yourself. Please note that this 515and calling C<< $term->scr_add_lines >> yourself. Please note that this
227might 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
228output. 517output.
229 518
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
230=item on_line_update $term, $row 524=item on_line_update $term, $row
231 525
232Called 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
233screen output (e.g. underline urls or other useless stuff). Only lines 527screen output (e.g. underline urls or other useless stuff). Only lines
234that are being shown will be filtered, and, due to performance reasons, 528that are being shown will be filtered, and, due to performance reasons,
250 544
251=item on_refresh_end $term 545=item on_refresh_end $term
252 546
253Called just after the screen gets redrawn. See C<on_refresh_begin>. 547Called just after the screen gets redrawn. See C<on_refresh_begin>.
254 548
255=item on_keyboard_command $term, $string 549=item on_user_command $term, $string
256 550
257Called whenever the user presses a key combination that has a 551Called whenever the a user-configured event is being activated (e.g. via
258C<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>
259resource in the @@RXVT_NAME@@(1) manpage). 553resource in the @@RXVT_NAME@@(1) manpage).
554
555The event is simply the action string. This interface is assumed to change
556slightly in the future.
557
558=item on_resize_all_windows $tern, $new_width, $new_height
559
560Called just after the new window size has been calculcated, but before
561windows are actually being resized or hints are being set. If this hook
562returns TRUE, setting of the window hints is being skipped.
563
564=item on_x_event $term, $event
565
566Called on every X event received on the vt window (and possibly other
567windows). Should only be used as a last resort. Most event structure
568members are not passed.
260 569
261=item on_focus_in $term 570=item on_focus_in $term
262 571
263Called whenever the window gets the keyboard focus, before rxvt-unicode 572Called whenever the window gets the keyboard focus, before rxvt-unicode
264does focus in processing. 573does focus in processing.
266=item on_focus_out $term 575=item on_focus_out $term
267 576
268Called wheneever the window loses keyboard focus, before rxvt-unicode does 577Called wheneever the window loses keyboard focus, before rxvt-unicode does
269focus out processing. 578focus out processing.
270 579
580=item on_configure_notify $term, $event
581
582=item on_property_notify $term, $event
583
271=item on_key_press $term, $event, $octets 584=item on_key_press $term, $event, $keysym, $octets
272 585
273=item on_key_release $term, $event 586=item on_key_release $term, $event, $keysym
274 587
275=item on_button_press $term, $event 588=item on_button_press $term, $event
276 589
277=item on_button_release $term, $event 590=item on_button_release $term, $event
278 591
284 597
285Called whenever the corresponding X event is received for the terminal If 598Called whenever the corresponding X event is received for the terminal If
286the hook returns true, then the even will be ignored by rxvt-unicode. 599the hook returns true, then the even will be ignored by rxvt-unicode.
287 600
288The event is a hash with most values as named by Xlib (see the XEvent 601The event is a hash with most values as named by Xlib (see the XEvent
289manpage), with the additional members C<row> and C<col>, which are the row 602manpage), with the additional members C<row> and C<col>, which are the
290and column under the mouse cursor. 603(real, not screen-based) row and column under the mouse cursor.
291 604
292C<on_key_press> additionally receives the string rxvt-unicode would 605C<on_key_press> additionally receives the string rxvt-unicode would
293output, if any, in locale-specific encoding. 606output, if any, in locale-specific encoding.
294 607
295subwindow. 608subwindow.
296 609
610=item on_client_message $term, $event
611
612=item on_wm_protocols $term, $event
613
614=item on_wm_delete_window $term, $event
615
616Called when various types of ClientMessage events are received (all with
617format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
618
297=back 619=back
298 620
621=cut
622
623package urxvt;
624
625use utf8;
626use strict;
627use Carp ();
628use Scalar::Util ();
629use List::Util ();
630
631our $VERSION = 1;
632our $TERM;
633our @TERM_INIT;
634our @TERM_EXT;
635our @HOOKNAME;
636our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
637our %OPTION;
638
639our $LIBDIR;
640our $RESNAME;
641our $RESCLASS;
642our $RXVTNAME;
643
644our $NOCHAR = chr 0xffff;
645
299=head2 Variables in the C<urxvt> Package 646=head2 Variables in the C<urxvt> Package
300 647
301=over 4 648=over 4
649
650=item $urxvt::LIBDIR
651
652The rxvt-unicode library directory, where, among other things, the perl
653modules and scripts are stored.
654
655=item $urxvt::RESCLASS, $urxvt::RESCLASS
656
657The resource class and name rxvt-unicode uses to look up X resources.
658
659=item $urxvt::RXVTNAME
660
661The basename of the installed binaries, usually C<urxvt>.
302 662
303=item $urxvt::TERM 663=item $urxvt::TERM
304 664
305The current terminal. This variable stores the current C<urxvt::term> 665The current terminal. This variable stores the current C<urxvt::term>
306object, whenever a callback/hook is executing. 666object, whenever a callback/hook is executing.
307 667
668=item @urxvt::TERM_INIT
669
670All coderefs in this array will be called as methods of the next newly
671created C<urxvt::term> object (during the C<on_init> phase). The array
672gets cleared before the codereferences that were in it are being executed,
673so coderefs can push themselves onto it again if they so desire.
674
675This complements to the perl-eval commandline option, but gets executed
676first.
677
678=item @urxvt::TERM_EXT
679
680Works similar to C<@TERM_INIT>, but contains perl package/class names, which
681get registered as normal extensions after calling the hooks in C<@TERM_INIT>
682but before other extensions. Gets cleared just like C<@TERM_INIT>.
683
308=back 684=back
309 685
310=head2 Functions in the C<urxvt> Package 686=head2 Functions in the C<urxvt> Package
311 687
312=over 4 688=over 4
313
314=item $term = new urxvt [arg...]
315
316Creates a new terminal, very similar as if you had started it with
317C<system $binfile, arg...>. Croaks (and probably outputs an error message)
318if the new instance couldn't be created. Returns C<undef> if the new
319instance didn't initialise perl, and the terminal object otherwise. The
320C<init> and C<start> hooks will be called during the call.
321 689
322=item urxvt::fatal $errormessage 690=item urxvt::fatal $errormessage
323 691
324Fatally aborts execution with the given error message. Avoid at all 692Fatally aborts execution with the given error message. Avoid at all
325costs! The only time this is acceptable is when the terminal process 693costs! The only time this is acceptable is when the terminal process
332that calls this function. 700that calls this function.
333 701
334Using this function has the advantage that its output ends up in the 702Using this function has the advantage that its output ends up in the
335correct place, e.g. on stderr of the connecting urxvtc client. 703correct place, e.g. on stderr of the connecting urxvtc client.
336 704
705Messages have a size limit of 1023 bytes currently.
706
707=item @terms = urxvt::termlist
708
709Returns all urxvt::term objects that exist in this process, regardless of
710wether they are started, being destroyed etc., so be careful. Only term
711objects that have perl extensions attached will be returned (because there
712is no urxvt::term objet associated with others).
713
337=item $time = urxvt::NOW 714=item $time = urxvt::NOW
338 715
339Returns the "current time" (as per the event loop). 716Returns the "current time" (as per the event loop).
340 717
341=item urxvt::CurrentTime 718=item urxvt::CurrentTime
342 719
343=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 720=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
344Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 721Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
345Button4Mask, Button5Mask, AnyModifier 722Button4Mask, Button5Mask, AnyModifier
723
724=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
725ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
726PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
727Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
728KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
729ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
730FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
731
732=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
733EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
734GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
735UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
736ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
737CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
738SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
346 739
347Various constants for use in X calls and event processing. 740Various constants for use in X calls and event processing.
348 741
349=back 742=back
350 743
379 772
380=item $background = urxvt::GET_BASEBG $rend 773=item $background = urxvt::GET_BASEBG $rend
381 774
382Return the foreground/background colour index, respectively. 775Return the foreground/background colour index, respectively.
383 776
384=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 777=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
385 778
386=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 779=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
780
781=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
387 782
388Replace the foreground/background colour in the rendition mask with the 783Replace the foreground/background colour in the rendition mask with the
389specified one. 784specified one.
390 785
391=item $value = urxvt::GET_CUSTOM ($rend) 786=item $value = urxvt::GET_CUSTOM $rend
392 787
393Return the "custom" value: Every rendition has 5 bits for use by 788Return the "custom" value: Every rendition has 5 bits for use by
394extensions. They can be set and changed as you like and are initially 789extensions. They can be set and changed as you like and are initially
395zero. 790zero.
396 791
397=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 792=item $rend = urxvt::SET_CUSTOM $rend, $new_value
398 793
399Change the custom value. 794Change the custom value.
400 795
401=back 796=back
402 797
403=cut 798=cut
404 799
405package urxvt;
406
407use utf8;
408use strict;
409use Scalar::Util ();
410use List::Util ();
411
412our $VERSION = 1;
413our $TERM;
414our @HOOKNAME;
415our %OPTION;
416our $LIBDIR;
417
418BEGIN { 800BEGIN {
419 urxvt->bootstrap;
420
421 # overwrite perl's warn 801 # overwrite perl's warn
422 *CORE::GLOBAL::warn = sub { 802 *CORE::GLOBAL::warn = sub {
423 my $msg = join "", @_; 803 my $msg = join "", @_;
424 $msg .= "\n" 804 $msg .= "\n"
425 unless $msg =~ /\n$/; 805 unless $msg =~ /\n$/;
426 urxvt::warn ($msg); 806 urxvt::warn ($msg);
427 }; 807 };
428} 808}
429 809
430my @hook_count; 810no warnings 'utf8';
811
431my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 812my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
432 813
433sub verbose { 814sub verbose {
434 my ($level, $msg) = @_; 815 my ($level, $msg) = @_;
435 warn "$msg\n" if $level <= $verbosity; 816 warn "$msg\n" if $level <= $verbosity;
436} 817}
437 818
438# find on_xxx subs in the package and register them
439# as hooks
440sub register_package($) {
441 my ($pkg) = @_;
442
443 for my $htype (0.. $#HOOKNAME) {
444 my $name = $HOOKNAME[$htype];
445
446 my $ref = $pkg->can ("on_" . lc $name)
447 or next;
448
449 $TERM->{_hook}[$htype]{$pkg} = $ref;
450 $hook_count[$htype]++
451 or set_should_invoke $htype, 1;
452 }
453}
454
455my $extension_pkg = "extension0000";
456my %extension_pkg; 819my %extension_pkg;
457 820
458# load a single script into its own package, once only 821# load a single script into its own package, once only
459sub extension_package($) { 822sub extension_package($) {
460 my ($path) = @_; 823 my ($path) = @_;
461 824
462 $extension_pkg{$path} ||= do { 825 $extension_pkg{$path} ||= do {
463 my $pkg = "urxvt::" . ($extension_pkg++); 826 $path =~ /([^\/\\]+)$/;
827 my $pkg = $1;
828 $pkg =~ s/[^[:word:]]/_/g;
829 $pkg = "urxvt::ext::$pkg";
464 830
465 verbose 3, "loading extension '$path' into package '$pkg'"; 831 verbose 3, "loading extension '$path' into package '$pkg'";
466 832
467 open my $fh, "<:raw", $path 833 open my $fh, "<:raw", $path
468 or die "$path: $!"; 834 or die "$path: $!";
469 835
470 my $source = "package $pkg; use strict; use utf8;\n" 836 my $source =
471 . "use base urxvt::term::proxy::;\n" 837 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
472 . "#line 1 \"$path\"\n{\n" 838 . "#line 1 \"$path\"\n{\n"
473 . (do { local $/; <$fh> }) 839 . (do { local $/; <$fh> })
474 . "\n};\n1"; 840 . "\n};\n1";
475 841
842 eval $source
476 eval $source or die "$path: $@"; 843 or die "$path: $@";
477 844
478 $pkg 845 $pkg
479 } 846 }
480} 847}
481 848
487 my $htype = shift; 854 my $htype = shift;
488 855
489 if ($htype == 0) { # INIT 856 if ($htype == 0) { # INIT
490 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 857 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
491 858
492 my %want_ext; 859 my %ext_arg;
493 860
861 {
862 my @init = @TERM_INIT;
863 @TERM_INIT = ();
864 $_->($TERM) for @init;
865 my @pkg = @TERM_EXT;
866 @TERM_EXT = ();
867 $TERM->register_package ($_) for @pkg;
868 }
869
494 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 870 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
495 if ($_ eq "default") { 871 if ($_ eq "default") {
496 $want_ext{$_}++ for qw(selection option-popup); 872 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
497 } elsif (/^-(.*)$/) { 873 } elsif (/^-(.*)$/) {
498 delete $want_ext{$1}; 874 delete $ext_arg{$1};
875 } elsif (/^([^<]+)<(.*)>$/) {
876 push @{ $ext_arg{$1} }, $2;
499 } else { 877 } else {
500 $want_ext{$_}++; 878 $ext_arg{$_} ||= [];
501 } 879 }
502 } 880 }
503 881
504 for my $ext (keys %want_ext) { 882 for my $ext (sort keys %ext_arg) {
505 my @files = grep -f $_, map "$_/$ext", @dirs; 883 my @files = grep -f $_, map "$_/$ext", @dirs;
506 884
507 if (@files) { 885 if (@files) {
508 register_package extension_package $files[0]; 886 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
509 } else { 887 } else {
510 warn "perl extension '$ext' not found in perl library search path\n"; 888 warn "perl extension '$ext' not found in perl library search path\n";
511 } 889 }
512 } 890 }
513 891
522 if $verbosity >= 10; 900 if $verbosity >= 10;
523 901
524 keys %$cb; 902 keys %$cb;
525 903
526 while (my ($pkg, $cb) = each %$cb) { 904 while (my ($pkg, $cb) = each %$cb) {
527 eval { 905 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
528 $retval = $cb->( 906 $retval ||= $retval_;
529 $TERM->{_pkg}{$pkg} ||= do {
530 my $proxy = bless { }, $pkg;
531 Scalar::Util::weaken ($proxy->{term} = $TERM);
532 $proxy
533 },
534 @_,
535 ) and last;
536 };
537 warn $@ if $@;#d#
538 }
539 }
540 907
541 if ($htype == 1) { # DESTROY 908 if ($@) {
542 # remove hooks if unused 909 $TERM->ungrab; # better to lose the grab than the session
543 if (my $hook = $TERM->{_hook}) { 910 warn $@;
544 for my $htype (0..$#$hook) {
545 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
546 or set_should_invoke $htype, 0;
547 } 911 }
548 } 912 }
549 913
914 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
915 if $verbosity >= 11;
916 }
917
918 if ($htype == 1) { # DESTROY
550 # clear package objects 919 # clear package objects
551 %$_ = () for values %{ $TERM->{_pkg} }; 920 %$_ = () for values %{ $TERM->{_pkg} };
552 921
553 # clear package 922 # clear package
554 %$TERM = (); 923 %$TERM = ();
555 } 924 }
556 925
557 $retval 926 $retval
558} 927}
559 928
560# urxvt::term::proxy 929sub SET_COLOR($$$) {
930 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
931}
561 932
562sub urxvt::term::proxy::AUTOLOAD { 933# urxvt::term::extension
563 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 934
935package urxvt::term::extension;
936
937sub enable {
938 my ($self, %hook) = @_;
939 my $pkg = $self->{_pkg};
940
941 while (my ($name, $cb) = each %hook) {
942 my $htype = $HOOKTYPE{uc $name};
943 defined $htype
944 or Carp::croak "unsupported hook type '$name'";
945
946 $self->set_should_invoke ($htype, +1)
947 unless exists $self->{term}{_hook}[$htype]{$pkg};
948
949 $self->{term}{_hook}[$htype]{$pkg} = $cb;
950 }
951}
952
953sub disable {
954 my ($self, @hook) = @_;
955 my $pkg = $self->{_pkg};
956
957 for my $name (@hook) {
958 my $htype = $HOOKTYPE{uc $name};
959 defined $htype
960 or Carp::croak "unsupported hook type '$name'";
961
962 $self->set_should_invoke ($htype, -1)
963 if delete $self->{term}{_hook}[$htype]{$pkg};
964 }
965}
966
967our $AUTOLOAD;
968
969sub AUTOLOAD {
970 $AUTOLOAD =~ /:([^:]+)$/
564 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 971 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
565 972
566 eval qq{ 973 eval qq{
567 sub $urxvt::term::proxy::AUTOLOAD { 974 sub $AUTOLOAD {
568 my \$proxy = shift; 975 my \$proxy = shift;
569 \$proxy->{term}->$1 (\@_) 976 \$proxy->{term}->$1 (\@_)
570 } 977 }
571 1 978 1
572 } or die "FATAL: unable to compile method forwarder: $@"; 979 } or die "FATAL: unable to compile method forwarder: $@";
573 980
574 goto &$urxvt::term::proxy::AUTOLOAD; 981 goto &$AUTOLOAD;
982}
983
984sub DESTROY {
985 # nop
575} 986}
576 987
577# urxvt::destroy_hook 988# urxvt::destroy_hook
578 989
579sub urxvt::destroy_hook::DESTROY { 990sub urxvt::destroy_hook::DESTROY {
582 993
583sub urxvt::destroy_hook(&) { 994sub urxvt::destroy_hook(&) {
584 bless \shift, urxvt::destroy_hook:: 995 bless \shift, urxvt::destroy_hook::
585} 996}
586 997
587# urxvt::anyevent
588
589package urxvt::anyevent; 998package urxvt::anyevent;
999
1000=head2 The C<urxvt::anyevent> Class
1001
1002The sole purpose of this class is to deliver an interface to the
1003C<AnyEvent> module - any module using it will work inside urxvt without
1004further programming. The only exception is that you cannot wait on
1005condition variables, but non-blocking condvar use is ok. What this means
1006is that you cannot use blocking APIs, but the non-blocking variant should
1007work.
1008
1009=cut
590 1010
591our $VERSION = 1; 1011our $VERSION = 1;
592 1012
593$INC{"urxvt/anyevent.pm"} = 1; # mark us as there 1013$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
594push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::]; 1014push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
637 ${$_[0]}++; 1057 ${$_[0]}++;
638} 1058}
639 1059
640sub urxvt::anyevent::condvar::wait { 1060sub urxvt::anyevent::condvar::wait {
641 unless (${$_[0]}) { 1061 unless (${$_[0]}) {
642 require Carp;
643 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"); 1062 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
644 } 1063 }
645} 1064}
646 1065
647package urxvt::term; 1066package urxvt::term;
648 1067
649=head2 The C<urxvt::term> Class 1068=head2 The C<urxvt::term> Class
650 1069
651=over 4 1070=over 4
652 1071
1072=cut
1073
1074# find on_xxx subs in the package and register them
1075# as hooks
1076sub register_package {
1077 my ($self, $pkg, $argv) = @_;
1078
1079 no strict 'refs';
1080
1081 urxvt::verbose 6, "register package $pkg to $self";
1082
1083 @{"$pkg\::ISA"} = urxvt::term::extension::;
1084
1085 my $proxy = bless {
1086 _pkg => $pkg,
1087 argv => $argv,
1088 }, $pkg;
1089 Scalar::Util::weaken ($proxy->{term} = $self);
1090
1091 $self->{_pkg}{$pkg} = $proxy;
1092
1093 for my $name (@HOOKNAME) {
1094 if (my $ref = $pkg->can ("on_" . lc $name)) {
1095 $proxy->enable ($name => $ref);
1096 }
1097 }
1098}
1099
1100=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1101
1102Creates a new terminal, very similar as if you had started it with system
1103C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1104hash which defines the environment of the new terminal.
1105
1106Croaks (and probably outputs an error message) if the new instance
1107couldn't be created. Returns C<undef> if the new instance didn't
1108initialise perl, and the terminal object otherwise. The C<init> and
1109C<start> hooks will be called before this call returns, and are free to
1110refer to global data (which is race free).
1111
1112=cut
1113
1114sub new {
1115 my ($class, $env, @args) = @_;
1116
1117 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1118 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1119
1120 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1121}
1122
653=item $term->destroy 1123=item $term->destroy
654 1124
655Destroy the terminal object (close the window, free resources etc.). 1125Destroy the terminal object (close the window, free resources
1126etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1127watchers (timers, io watchers) are still active.
1128
1129=item $term->exec_async ($cmd[, @args])
1130
1131Works like the combination of the C<fork>/C<exec> builtins, which executes
1132("starts") programs in the background. This function takes care of setting
1133the user environment before exec'ing the command (e.g. C<PATH>) and should
1134be preferred over explicit calls to C<exec> or C<system>.
1135
1136Returns the pid of the subprocess or C<undef> on error.
1137
1138=cut
1139
1140sub exec_async {
1141 my $self = shift;
1142
1143 my $pid = fork;
1144
1145 return $pid
1146 if !defined $pid or $pid;
1147
1148 %ENV = %{ $self->env };
1149
1150 exec @_;
1151 urxvt::_exit 255;
1152}
656 1153
657=item $isset = $term->option ($optval[, $set]) 1154=item $isset = $term->option ($optval[, $set])
658 1155
659Returns true if the option specified by C<$optval> is enabled, and 1156Returns true if the option specified by C<$optval> is enabled, and
660optionally change it. All option values are stored by name in the hash 1157optionally change it. All option values are stored by name in the hash
663Here is a a likely non-exhaustive list of option names, please see the 1160Here is a a likely non-exhaustive list of option names, please see the
664source file F</src/optinc.h> to see the actual list: 1161source file F</src/optinc.h> to see the actual list:
665 1162
666 borderLess console cursorBlink cursorUnderline hold iconic insecure 1163 borderLess console cursorBlink cursorUnderline hold iconic insecure
667 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1164 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
668 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1165 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
669 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1166 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
670 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1167 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
671 tripleclickwords utmpInhibit visualBell 1168 transparent tripleclickwords utmpInhibit visualBell
672 1169
673=item $value = $term->resource ($name[, $newval]) 1170=item $value = $term->resource ($name[, $newval])
674 1171
675Returns the current resource value associated with a given name and 1172Returns the current resource value associated with a given name and
676optionally sets a new value. Setting values is most useful in the C<init> 1173optionally sets a new value. Setting values is most useful in the C<init>
693 1190
694 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1191 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
695 borderLess color cursorBlink cursorUnderline cutchars delete_key 1192 borderLess color cursorBlink cursorUnderline cutchars delete_key
696 display_name embed ext_bwidth fade font geometry hold iconName 1193 display_name embed ext_bwidth fade font geometry hold iconName
697 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1194 imFont imLocale inputMethod insecure int_bwidth intensityStyles
698 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1195 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
699 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1196 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
700 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1197 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
701 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1198 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
702 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1199 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
703 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1200 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
704 shade term_name title transparent transparent_all tripleclickwords 1201 secondaryScreen secondaryScroll selectstyle shade term_name title
705 utmpInhibit visualBell 1202 transient_for transparent transparent_all tripleclickwords utmpInhibit
1203 visualBell
706 1204
707=cut 1205=cut
708 1206
709sub resource($$;$) { 1207sub resource($$;$) {
710 my ($self, $name) = (shift, shift); 1208 my ($self, $name) = (shift, shift);
711 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1209 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
712 &urxvt::term::_resource 1210 &urxvt::term::_resource
713} 1211}
714 1212
1213=item $value = $term->x_resource ($pattern)
1214
1215Returns the X-Resource for the given pattern, excluding the program or
1216class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1217same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1218resource with that pattern exists.
1219
1220This method should only be called during the C<on_start> hook, as there is
1221only one resource database per display, and later invocations might return
1222the wrong resources.
1223
1224=item $success = $term->parse_keysym ($keysym_spec, $command_string)
1225
1226Adds a keymap translation exactly as specified via a resource. See the
1227C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1228
715=item $rend = $term->rstyle ([$new_rstyle]) 1229=item $rend = $term->rstyle ([$new_rstyle])
716 1230
717Return and optionally change the current rendition. Text that is output by 1231Return and optionally change the current rendition. Text that is output by
718the terminal application will use this style. 1232the terminal application will use this style.
719 1233
729=item ($row, $col) = $term->selection_end ([$row, $col]) 1243=item ($row, $col) = $term->selection_end ([$row, $col])
730 1244
731Return the current values of the selection mark, begin or end positions, 1245Return the current values of the selection mark, begin or end positions,
732and optionally set them to new values. 1246and optionally set them to new values.
733 1247
1248=item $term->selection_make ($eventtime[, $rectangular])
1249
1250Tries to make a selection as set by C<selection_beg> and
1251C<selection_end>. If C<$rectangular> is true (default: false), a
1252rectangular selection will be made. This is the prefered function to make
1253a selection.
1254
734=item $success = $term->selection_grab ($eventtime) 1255=item $success = $term->selection_grab ($eventtime)
735 1256
736Try to request the primary selection from the server (for example, as set 1257Try to request the primary selection text from the server (for example, as
737by the next method). 1258set by the next method). No visual feedback will be given. This function
1259is mostly useful from within C<on_sel_grab> hooks.
738 1260
739=item $oldtext = $term->selection ([$newtext]) 1261=item $oldtext = $term->selection ([$newtext])
740 1262
741Return the current selection text and optionally replace it by C<$newtext>. 1263Return the current selection text and optionally replace it by C<$newtext>.
742 1264
743#=item $term->overlay ($x, $y, $text) 1265=item $term->overlay_simple ($x, $y, $text)
744# 1266
745#Create a simple multi-line overlay box. See the next method for details. 1267Create a simple multi-line overlay box. See the next method for details.
746# 1268
747#=cut 1269=cut
748# 1270
749#sub urxvt::term::scr_overlay { 1271sub overlay_simple {
750# my ($self, $x, $y, $text) = @_; 1272 my ($self, $x, $y, $text) = @_;
751# 1273
752# my @lines = split /\n/, $text; 1274 my @lines = split /\n/, $text;
753# 1275
754# my $w = 0; 1276 my $w = List::Util::max map $self->strwidth ($_), @lines;
755# for (map $self->strwidth ($_), @lines) { 1277
756# $w = $_ if $w < $_;
757# }
758#
759# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1278 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
760# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1279 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
761#} 1280
1281 $overlay
1282}
762 1283
763=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1284=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
764 1285
765Create a new (empty) overlay at the given position with the given 1286Create a new (empty) overlay at the given position with the given
766width/height. C<$rstyle> defines the initial rendition style 1287width/height. C<$rstyle> defines the initial rendition style
833 1354
834=item $string = $term->locale_decode ($octets) 1355=item $string = $term->locale_decode ($octets)
835 1356
836Convert the given locale-encoded octets into a perl string. 1357Convert the given locale-encoded octets into a perl string.
837 1358
1359=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1360
1361XORs the rendition values in the given span with the provided value
1362(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1363refresh hooks to provide effects similar to the selection.
1364
1365=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1366
1367Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1368whitespace will additionally be xored with the C<$rstyle2>, which defaults
1369to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1370it instead. Both styles I<MUST NOT> contain font styles.
1371
1372=item $term->scr_bell
1373
1374Ring the bell!
1375
838=item $term->scr_add_lines ($string) 1376=item $term->scr_add_lines ($string)
839 1377
840Write the given text string to the screen, as if output by the application 1378Write the given text string to the screen, as if output by the application
841running inside the terminal. It may not contain command sequences (escape 1379running inside the terminal. It may not contain command sequences (escape
842codes), but is free to use line feeds, carriage returns and tabs. The 1380codes), but is free to use line feeds, carriage returns and tabs. The
844 1382
845Normally its not a good idea to use this function, as programs might be 1383Normally its not a good idea to use this function, as programs might be
846confused by changes in cursor position or scrolling. Its useful inside a 1384confused by changes in cursor position or scrolling. Its useful inside a
847C<on_add_lines> hook, though. 1385C<on_add_lines> hook, though.
848 1386
1387=item $term->scr_change_screen ($screen)
1388
1389Switch to given screen - 0 primary, 1 secondary.
1390
849=item $term->cmd_parse ($octets) 1391=item $term->cmd_parse ($octets)
850 1392
851Similar to C<scr_add_lines>, but the argument must be in the 1393Similar to C<scr_add_lines>, but the argument must be in the
852locale-specific encoding of the terminal and can contain command sequences 1394locale-specific encoding of the terminal and can contain command sequences
853(escape codes) that will be interpreted. 1395(escape codes) that will be interpreted.
856 1398
857Write the octets given in C<$data> to the tty (i.e. as program input). To 1399Write the octets given in C<$data> to the tty (i.e. as program input). To
858pass characters instead of octets, you should convert your strings first 1400pass characters instead of octets, you should convert your strings first
859to the locale-specific encoding using C<< $term->locale_encode >>. 1401to the locale-specific encoding using C<< $term->locale_encode >>.
860 1402
1403=item $old_events = $term->pty_ev_events ([$new_events])
1404
1405Replaces the event mask of the pty watcher by the given event mask. Can
1406be used to suppress input and output handling to the pty/tty. See the
1407description of C<< urxvt::timer->events >>. Make sure to always restore
1408the previous value.
1409
1410=item $fd = $term->pty_fd
1411
1412Returns the master file descriptor for the pty in use, or C<-1> if no pty
1413is used.
1414
861=item $windowid = $term->parent 1415=item $windowid = $term->parent
862 1416
863Return the window id of the toplevel window. 1417Return the window id of the toplevel window.
864 1418
865=item $windowid = $term->vt 1419=item $windowid = $term->vt
866 1420
867Return the window id of the terminal window. 1421Return the window id of the terminal window.
868 1422
1423=item $term->vt_emask_add ($x_event_mask)
1424
1425Adds the specified events to the vt event mask. Useful e.g. when you want
1426to receive pointer events all the times:
1427
1428 $term->vt_emask_add (urxvt::PointerMotionMask);
1429
1430=item $term->focus_in
1431
1432=item $term->focus_out
1433
1434=item $term->key_press ($state, $keycode[, $time])
1435
1436=item $term->key_release ($state, $keycode[, $time])
1437
1438Deliver various fake events to to terminal.
1439
869=item $window_width = $term->width 1440=item $window_width = $term->width
870 1441
871=item $window_height = $term->height 1442=item $window_height = $term->height
872 1443
873=item $font_width = $term->fwidth 1444=item $font_width = $term->fwidth
886 1457
887=item $max_scrollback = $term->saveLines 1458=item $max_scrollback = $term->saveLines
888 1459
889=item $nrow_plus_saveLines = $term->total_rows 1460=item $nrow_plus_saveLines = $term->total_rows
890 1461
891=item $lines_in_scrollback = $term->nsaved 1462=item $topmost_scrollback_row = $term->top_row
892 1463
893Return various integers describing terminal characteristics. 1464Return various integers describing terminal characteristics.
1465
1466=item $x_display = $term->display_id
1467
1468Return the DISPLAY used by rxvt-unicode.
1469
1470=item $lc_ctype = $term->locale
1471
1472Returns the LC_CTYPE category string used by this rxvt-unicode.
1473
1474=item $env = $term->env
1475
1476Returns a copy of the environment in effect for the terminal as a hashref
1477similar to C<\%ENV>.
1478
1479=item @envv = $term->envv
1480
1481Returns the environment as array of strings of the form C<VAR=VALUE>.
1482
1483=item @argv = $term->argv
1484
1485Return the argument vector as this terminal, similar to @ARGV, but
1486includes the program name as first element.
1487
1488=cut
1489
1490sub env {
1491 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1492}
894 1493
895=item $modifiermask = $term->ModLevel3Mask 1494=item $modifiermask = $term->ModLevel3Mask
896 1495
897=item $modifiermask = $term->ModMetaMask 1496=item $modifiermask = $term->ModMetaMask
898 1497
899=item $modifiermask = $term->ModNumLockMask 1498=item $modifiermask = $term->ModNumLockMask
900 1499
901Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1500Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
902AltGr), the meta key (often Alt) and the num lock key, if applicable. 1501AltGr), the meta key (often Alt) and the num lock key, if applicable.
903 1502
1503=item $screen = $term->current_screen
1504
1505Returns the currently displayed screen (0 primary, 1 secondary).
1506
1507=item $cursor_is_hidden = $term->hidden_cursor
1508
1509Returns wether the cursor is currently hidden or not.
1510
904=item $view_start = $term->view_start ([$newvalue]) 1511=item $view_start = $term->view_start ([$newvalue])
905 1512
906Returns the negative row number of the topmost line. Minimum value is 1513Returns the row number of the topmost displayed line. Maximum value is
907C<0>, which displays the normal terminal contents. Larger values scroll 1514C<0>, which displays the normal terminal contents. Lower values scroll
908this many lines into the scrollback buffer. 1515this many lines into the scrollback buffer.
909 1516
910=item $term->want_refresh 1517=item $term->want_refresh
911 1518
912Requests a screen refresh. At the next opportunity, rxvt-unicode will 1519Requests a screen refresh. At the next opportunity, rxvt-unicode will
927line, starting at column C<$start_col> (default C<0>), which is useful 1534line, starting at column C<$start_col> (default C<0>), which is useful
928to replace only parts of a line. The font index in the rendition will 1535to replace only parts of a line. The font index in the rendition will
929automatically be updated. 1536automatically be updated.
930 1537
931C<$text> is in a special encoding: tabs and wide characters that use more 1538C<$text> is in a special encoding: tabs and wide characters that use more
932than one cell when displayed are padded with urxvt::NOCHAR characters 1539than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
933(C<chr 65535>). Characters with combining characters and other characters 1540characters. Characters with combining characters and other characters that
934that do not fit into the normal tetx encoding will be replaced with 1541do not fit into the normal tetx encoding will be replaced with characters
935characters in the private use area. 1542in the private use area.
936 1543
937You have to obey this encoding when changing text. The advantage is 1544You have to obey this encoding when changing text. The advantage is
938that C<substr> and similar functions work on screen cells and not on 1545that C<substr> and similar functions work on screen cells and not on
939characters. 1546characters.
940 1547
991Return the row number of the first/last row of the line, respectively. 1598Return the row number of the first/last row of the line, respectively.
992 1599
993=item $offset = $line->offset_of ($row, $col) 1600=item $offset = $line->offset_of ($row, $col)
994 1601
995Returns the character offset of the given row|col pair within the logical 1602Returns the character offset of the given row|col pair within the logical
996line. 1603line. Works for rows outside the line, too, and returns corresponding
1604offsets outside the string.
997 1605
998=item ($row, $col) = $line->coord_of ($offset) 1606=item ($row, $col) = $line->coord_of ($offset)
999 1607
1000Translates a string offset into terminal coordinates again. 1608Translates a string offset into terminal coordinates again.
1001 1609
1075 $offset / $self->{ncol} + $self->{beg}, 1683 $offset / $self->{ncol} + $self->{beg},
1076 $offset % $self->{ncol} 1684 $offset % $self->{ncol}
1077 ) 1685 )
1078} 1686}
1079 1687
1080=item ($row, $col) = $line->coord_of ($offset)
1081=item $text = $term->special_encode $string 1688=item $text = $term->special_encode $string
1082 1689
1083Converts a perl string into the special encoding used by rxvt-unicode, 1690Converts a perl string into the special encoding used by rxvt-unicode,
1084where one character corresponds to one screen cell. See 1691where one character corresponds to one screen cell. See
1085C<< $term->ROW_t >> for details. 1692C<< $term->ROW_t >> for details.
1087=item $string = $term->special_decode $text 1694=item $string = $term->special_decode $text
1088 1695
1089Converts rxvt-unicodes text reprsentation into a perl string. See 1696Converts rxvt-unicodes text reprsentation into a perl string. See
1090C<< $term->ROW_t >> for details. 1697C<< $term->ROW_t >> for details.
1091 1698
1699=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1700
1701=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1702
1703Register/unregister a synchronous button grab. See the XGrabButton
1704manpage.
1705
1706=item $success = $term->grab ($eventtime[, $sync])
1707
1708Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1709synchronous (C<$sync> is true). Also remembers the grab timestampe.
1710
1711=item $term->allow_events_async
1712
1713Calls XAllowEvents with AsyncBoth for the most recent grab.
1714
1715=item $term->allow_events_sync
1716
1717Calls XAllowEvents with SyncBoth for the most recent grab.
1718
1719=item $term->allow_events_replay
1720
1721Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1722recent grab.
1723
1724=item $term->ungrab
1725
1726Calls XUngrab for the most recent grab. Is called automatically on
1727evaluation errors, as it is better to lose the grab in the error case as
1728the session.
1729
1730=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1731
1732=item $atom_name = $term->XGetAtomName ($atom)
1733
1734=item @atoms = $term->XListProperties ($window)
1735
1736=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1737
1738=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1739
1740=item $term->XDeleteProperty ($window, $property)
1741
1742=item $window = $term->DefaultRootWindow
1743
1744=item $term->XReparentWindow ($window, $parent, [$x, $y])
1745
1746=item $term->XMapWindow ($window)
1747
1748=item $term->XUnmapWindow ($window)
1749
1750=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1751
1752=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1753
1754=item $term->XChangeInput ($window, $add_events[, $del_events])
1755
1756Various X or X-related functions. The C<$term> object only serves as
1757the source of the display, otherwise those functions map more-or-less
1758directory onto the X functions of the same name.
1759
1092=back 1760=back
1093 1761
1094=cut 1762=cut
1095 1763
1096package urxvt::popup; 1764package urxvt::popup;
1111 $item->{render} ||= sub { $_[0]{text} }; 1779 $item->{render} ||= sub { $_[0]{text} };
1112 1780
1113 push @{ $self->{item} }, $item; 1781 push @{ $self->{item} }, $item;
1114} 1782}
1115 1783
1116sub add_separator { 1784=item $popup->add_title ($title)
1117 my ($self, $sep) = @_;
1118 1785
1119 $sep ||= "═"; 1786Adds a non-clickable title to the popup.
1120 1787
1121 $self->add_item ({ 1788=cut
1122 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1123 text => "",
1124 render => sub { $sep x $urxvt::TERM->ncol },
1125 activate => sub { },
1126 });
1127}
1128 1789
1129sub add_title { 1790sub add_title {
1130 my ($self, $title) = @_; 1791 my ($self, $title) = @_;
1131 1792
1132 $self->add_item ({ 1793 $self->add_item ({
1134 text => $title, 1795 text => $title,
1135 activate => sub { }, 1796 activate => sub { },
1136 }); 1797 });
1137} 1798}
1138 1799
1800=item $popup->add_separator ([$sepchr])
1801
1802Creates a separator, optionally using the character given as C<$sepchr>.
1803
1804=cut
1805
1806sub add_separator {
1807 my ($self, $sep) = @_;
1808
1809 $sep ||= "=";
1810
1811 $self->add_item ({
1812 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1813 text => "",
1814 render => sub { $sep x $self->{term}->ncol },
1815 activate => sub { },
1816 });
1817}
1818
1819=item $popup->add_button ($text, $cb)
1820
1821Adds a clickable button to the popup. C<$cb> is called whenever it is
1822selected.
1823
1824=cut
1825
1139sub add_button { 1826sub add_button {
1140 my ($self, $text, $cb) = @_; 1827 my ($self, $text, $cb) = @_;
1141 1828
1142 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1829 $self->add_item ({ type => "button", text => $text, activate => $cb});
1143} 1830}
1831
1832=item $popup->add_toggle ($text, $initial_value, $cb)
1833
1834Adds a toggle/checkbox item to the popup. The callback gets called
1835whenever it gets toggled, with a boolean indicating its new value as its
1836first argument.
1837
1838=cut
1144 1839
1145sub add_toggle { 1840sub add_toggle {
1146 my ($self, $text, $cb, $value) = @_; 1841 my ($self, $text, $value, $cb) = @_;
1147 1842
1148 my $item; $item = { 1843 my $item; $item = {
1149 type => "button", 1844 type => "button",
1150 text => " $text", 1845 text => " $text",
1151 value => $value, 1846 value => $value,
1152 render => sub { ($item->{value} ? "* " : " ") . $text }, 1847 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1153 activate => sub { $cb->($item->{value} = !$item->{value}); }, 1848 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1154 }; 1849 };
1155 1850
1156 $self->add_item ($item); 1851 $self->add_item ($item);
1157} 1852}
1853
1854=item $popup->show
1855
1856Displays the popup (which is initially hidden).
1857
1858=cut
1158 1859
1159sub show { 1860sub show {
1160 my ($self) = @_; 1861 my ($self) = @_;
1161 1862
1162 local $urxvt::popup::self = $self; 1863 local $urxvt::popup::self = $self;
1163 1864
1164 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1865 my $env = $self->{term}->env;
1866 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1867 delete $env->{LC_ALL};
1868 $env->{LC_CTYPE} = $self->{term}->locale;
1869
1870 urxvt::term->new ($env, "popup",
1871 "--perl-lib" => "", "--perl-ext-common" => "",
1872 "-pty-fd" => -1, "-sl" => 0,
1873 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1165 "--transient-for" => $self->{term}->parent, 1874 "--transient-for" => $self->{term}->parent,
1875 "-display" => $self->{term}->display_id,
1166 "-pe" => "urxvt-popup") 1876 "-pe" => "urxvt-popup")
1167 or die "unable to create popup window\n"; 1877 or die "unable to create popup window\n";
1168} 1878}
1169 1879
1170sub DESTROY { 1880sub DESTROY {
1171 my ($self) = @_; 1881 my ($self) = @_;
1172 1882
1883 delete $self->{term}{_destroy}{$self};
1173 $self->{term}->ungrab; 1884 $self->{term}->ungrab;
1174} 1885}
1886
1887=back
1888
1889=cut
1890
1891package urxvt::watcher;
1892
1893@urxvt::timer::ISA = __PACKAGE__;
1894@urxvt::iow::ISA = __PACKAGE__;
1895@urxvt::pw::ISA = __PACKAGE__;
1896@urxvt::iw::ISA = __PACKAGE__;
1175 1897
1176=head2 The C<urxvt::timer> Class 1898=head2 The C<urxvt::timer> Class
1177 1899
1178This class implements timer watchers/events. Time is represented as a 1900This class implements timer watchers/events. Time is represented as a
1179fractional number of seconds since the epoch. Example: 1901fractional number of seconds since the epoch. Example:
1218 1940
1219=item $timer = $timer->start ($tstamp) 1941=item $timer = $timer->start ($tstamp)
1220 1942
1221Set the event trigger time to C<$tstamp> and start the timer. 1943Set the event trigger time to C<$tstamp> and start the timer.
1222 1944
1945=item $timer = $timer->after ($delay)
1946
1947Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1948
1223=item $timer = $timer->stop 1949=item $timer = $timer->stop
1224 1950
1225Stop the timer. 1951Stop the timer.
1226 1952
1227=back 1953=back
1232 1958
1233 $term->{socket} = ... 1959 $term->{socket} = ...
1234 $term->{iow} = urxvt::iow 1960 $term->{iow} = urxvt::iow
1235 ->new 1961 ->new
1236 ->fd (fileno $term->{socket}) 1962 ->fd (fileno $term->{socket})
1237 ->events (1) # wait for read data 1963 ->events (urxvt::EVENT_READ)
1238 ->start 1964 ->start
1239 ->cb (sub { 1965 ->cb (sub {
1240 my ($iow, $revents) = @_; 1966 my ($iow, $revents) = @_;
1241 # $revents must be 1 here, no need to check 1967 # $revents must be 1 here, no need to check
1242 sysread $term->{socket}, my $buf, 8192 1968 sysread $term->{socket}, my $buf, 8192
1259 1985
1260Set the filedescriptor (not handle) to watch. 1986Set the filedescriptor (not handle) to watch.
1261 1987
1262=item $iow = $iow->events ($eventmask) 1988=item $iow = $iow->events ($eventmask)
1263 1989
1264Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1990Set the event mask to watch. The only allowed values are
1265data, Bit #1 (value C<2>) enables watching for write data. 1991C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1992together, or C<urxvt::EVENT_NONE>.
1266 1993
1267=item $iow = $iow->start 1994=item $iow = $iow->start
1268 1995
1269Start watching for requested events on the given handle. 1996Start watching for requested events on the given handle.
1270 1997
1271=item $iow = $iow->stop 1998=item $iow = $iow->stop
1272 1999
1273Stop watching for events on the given filehandle. 2000Stop watching for events on the given filehandle.
2001
2002=back
2003
2004=head2 The C<urxvt::iw> Class
2005
2006This class implements idle watchers, that get called automatically when
2007the process is idle. They should return as fast as possible, after doing
2008some useful work.
2009
2010=over 4
2011
2012=item $iw = new urxvt::iw
2013
2014Create a new idle watcher object in stopped state.
2015
2016=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2017
2018Set the callback to be called when the watcher triggers.
2019
2020=item $timer = $timer->start
2021
2022Start the watcher.
2023
2024=item $timer = $timer->stop
2025
2026Stop the watcher.
2027
2028=back
2029
2030=head2 The C<urxvt::pw> Class
2031
2032This class implements process watchers. They create an event whenever a
2033process exits, after which they stop automatically.
2034
2035 my $pid = fork;
2036 ...
2037 $term->{pw} = urxvt::pw
2038 ->new
2039 ->start ($pid)
2040 ->cb (sub {
2041 my ($pw, $exit_status) = @_;
2042 ...
2043 });
2044
2045=over 4
2046
2047=item $pw = new urxvt::pw
2048
2049Create a new process watcher in stopped state.
2050
2051=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2052
2053Set the callback to be called when the timer triggers.
2054
2055=item $pw = $timer->start ($pid)
2056
2057Tells the wqtcher to start watching for process C<$pid>.
2058
2059=item $pw = $pw->stop
2060
2061Stop the watcher.
1274 2062
1275=back 2063=back
1276 2064
1277=head1 ENVIRONMENT 2065=head1 ENVIRONMENT
1278 2066
1281This variable controls the verbosity level of the perl extension. Higher 2069This variable controls the verbosity level of the perl extension. Higher
1282numbers indicate more verbose output. 2070numbers indicate more verbose output.
1283 2071
1284=over 4 2072=over 4
1285 2073
1286=item =0 - only fatal messages 2074=item == 0 - fatal messages
1287 2075
1288=item =3 - script loading and management 2076=item >= 3 - script loading and management
1289 2077
1290=item =10 - all events received 2078=item >=10 - all called hooks
2079
2080=item >=11 - hook reutrn values
1291 2081
1292=back 2082=back
1293 2083
1294=head1 AUTHOR 2084=head1 AUTHOR
1295 2085

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