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Revision 1.52 by root, Sun Jan 8 00:48:14 2006 UTC vs.
Revision 1.131 by root, Sun Jan 29 20:51:28 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 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
61=item digital-clock 94=item option-popup (enabled by default)
62 95
63Displays a digital clock using the built-in overlay. 96Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
97runtime.
98
99=item selection-popup (enabled by default)
100
101Binds a popup menu to Ctrl-Button3 that lets you convert the selection
102text into various other formats/action (such as uri unescaping, perl
103evaluation, web-browser starting etc.), depending on content.
104
105Other extensions can extend this popup menu by pushing a code reference
106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
107popup is displayed.
108
109It's sole argument is the popup menu, which can be modified. The selection
110is in C<$_>, which can be used to decide wether to add something or not.
111It should either return nothing or a string and a code reference. The
112string will be used as button text and the code reference will be called
113when the button gets activated and should transform C<$_>.
114
115The following will add an entry C<a to b> that transforms all C<a>s in
116the selection to C<b>s, but only if the selection currently contains any
117C<a>s:
118
119 push @{ $self->{term}{selection_popup_hook} }, sub {
120 /a/ ? ("a to be" => sub { s/a/b/g }
121 : ()
122 };
123
124=item searchable-scrollback<hotkey> (enabled by default)
125
126Adds regex search functionality to the scrollback buffer, triggered
127by a hotkey (default: C<M-s>). While in search mode, normal terminal
128input/output is suspended and a regex is displayed at the bottom of the
129screen.
130
131Inputting characters appends them to the regex and continues incremental
132search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
133search upwards/downwards in the scrollback buffer, C<End> jumps to the
134bottom. C<Escape> leaves search mode and returns to the point where search
135was started, while C<Enter> or C<Return> stay at the current position and
136additionally stores the first match in the current line into the primary
137selection.
138
139=item readline (enabled by default)
140
141A support package that tries to make editing with readline easier. At the
142moment, it reacts to clicking with the left mouse button by trying to
143move the text cursor to this position. It does so by generating as many
144cursor-left or cursor-right keypresses as required (the this only works
145for programs that correctly support wide characters).
146
147To avoid too many false positives, this is only done when:
148
149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
162might interfere with selection creation in harmless ways.
163
164=item selection-autotransform
165
166This selection allows you to do automatic transforms on a selection
167whenever a selection is made.
168
169It works by specifying perl snippets (most useful is a single C<s///>
170operator) that modify C<$_> as resources:
171
172 URxvt.selection-autotransform.0: transform
173 URxvt.selection-autotransform.1: transform
174 ...
175
176For example, the following will transform selections of the form
177C<filename:number>, often seen in compiler messages, into C<vi +$filename
178$word>:
179
180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
181
182And this example matches the same,but replaces it with vi-commands you can
183paste directly into your (vi :) editor:
184
185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
186
187Of course, this can be modified to suit your needs and your editor :)
188
189To expand the example above to typical perl error messages ("XXX at
190FILENAME line YYY."), you need a slightly more elaborate solution:
191
192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
194
195The first line tells the selection code to treat the unchanging part of
196every error message as a selection pattern, and the second line transforms
197the message into vi commands to load the file.
198
199=item tabbed
200
201This transforms the terminal into a tabbar with additional terminals, that
202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
203displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
204button per tab.
205
206Clicking a button will activate that tab. Pressing B<Shift-Left> and
207B<Shift-Right> will switch to the tab left or right of the current one,
208while B<Shift-Down> creates a new tab.
64 209
65=item mark-urls 210=item mark-urls
66 211
67Uses per-line display filtering (C<on_line_update>) to underline urls. 212Uses per-line display filtering (C<on_line_update>) to underline urls and
213make them clickable. When middle-clicked, the program specified in the
214resource C<urlLauncher> (default C<x-www-browser>) will be started with
215the URL as first argument.
216
217=item xim-onthespot
218
219This (experimental) perl extension implements OnTheSpot editing. It does
220not work perfectly, and some input methods don't seem to work well with
221OnTheSpot editing in general, but it seems to work at leats for SCIM and
222kinput2.
223
224You enable it by specifying this extension and a preedit style of
225C<OnTheSpot>, i.e.:
226
227 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
228
229=item automove-background
230
231This is basically a one-line extension that dynamically changes the background pixmap offset
232to the window position, in effect creating the same effect as pseudo transparency with
233a custom pixmap. No scaling is supported in this mode. Exmaple:
234
235 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
68 236
69=item block-graphics-to-ascii 237=item block-graphics-to-ascii
70 238
71A not very useful example of filtering all text output to the terminal, 239A not very useful example of filtering all text output to the terminal,
72by replacing all line-drawing characters (U+2500 .. U+259F) by a 240by replacing all line-drawing characters (U+2500 .. U+259F) by a
73similar-looking ascii character. 241similar-looking ascii character.
74 242
243=item digital-clock
244
245Displays a digital clock using the built-in overlay.
246
247=item remote-clipboard
248
249Somewhat of a misnomer, this extension adds two menu entries to the
250selection popup that allows one ti run external commands to store the
251selection somewhere and fetch it again.
252
253We use it to implement a "distributed selection mechanism", which just
254means that one command uploads the file to a remote server, and another
255reads it.
256
257The commands can be set using the C<URxvt.remote-selection.store> and
258C<URxvt.remote-selection.fetch> resources. The first should read the
259selection to store from STDIN (always in UTF-8), the second should provide
260the selection data on STDOUT (also in UTF-8).
261
262The defaults (which are likely useless to you) use rsh and cat:
263
264 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
265 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
266
267=item selection-pastebin
268
269This is a little rarely useful extension that Uploads the selection as
270textfile to a remote site (or does other things). (The implementation is
271not currently secure for use in a multiuser environment as it writes to
272F</tmp> directly.).
273
274It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
275i.e.
276
277 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
278
279Pressing this combination runs a command with C<%> replaced by the name of
280the textfile. This command can be set via a resource:
281
282 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
283
284And the default is likely not useful to anybody but the few people around
285here :)
286
287The name of the textfile is the hex encoded md5 sum of the selection, so
288the same content should lead to the same filename.
289
290After a successful upload the selection will be replaced by the text given
291in the C<selection-pastebin-url> resource (again, the % is the placeholder
292for the filename):
293
294 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
295
75=item example-refresh-hooks 296=item example-refresh-hooks
76 297
77Displays a very simple digital clock in the upper right corner of the 298Displays a very simple digital clock in the upper right corner of the
78window. Illustrates overwriting the refresh callbacks to create your own 299window. Illustrates overwriting the refresh callbacks to create your own
79overlays or changes. 300overlays or changes.
80 301
81=back 302=back
303
304=head1 API DOCUMENTATION
82 305
83=head2 General API Considerations 306=head2 General API Considerations
84 307
85All objects (such as terminals, time watchers etc.) are typical 308All objects (such as terminals, time watchers etc.) are typical
86reference-to-hash objects. The hash can be used to store anything you 309reference-to-hash objects. The hash can be used to store anything you
99=over 4 322=over 4
100 323
101=item $text 324=item $text
102 325
103Rxvt-unicodes special way of encoding text, where one "unicode" character 326Rxvt-unicodes special way of encoding text, where one "unicode" character
104always represents one screen cell. See L<row_t> for a discussion of this format. 327always represents one screen cell. See L<ROW_t> for a discussion of this format.
105 328
106=item $string 329=item $string
107 330
108A perl text string, with an emphasis on I<text>. It can store all unicode 331A perl text string, with an emphasis on I<text>. It can store all unicode
109characters and is to be distinguished with text encoded in a specific 332characters and is to be distinguished with text encoded in a specific
114Either binary data or - more common - a text string encoded in a 337Either binary data or - more common - a text string encoded in a
115locale-specific way. 338locale-specific way.
116 339
117=back 340=back
118 341
342=head2 Extension Objects
343
344Very perl extension is a perl class. A separate perl object is created
345for each terminal and each extension and passed as the first parameter to
346hooks. So extensions can use their C<$self> object without having to think
347about other extensions, with the exception of methods and members that
348begin with an underscore character C<_>: these are reserved for internal
349use.
350
351Although it isn't a C<urxvt::term> object, you can call all methods of the
352C<urxvt::term> class on this object.
353
354It has the following methods and data members:
355
356=over 4
357
358=item $urxvt_term = $self->{term}
359
360Returns the C<urxvt::term> object associated with this instance of the
361extension. This member I<must not> be changed in any way.
362
363=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
364
365Dynamically enable the given hooks (named without the C<on_> prefix) for
366this extension, replacing any previous hook. This is useful when you want
367to overwrite time-critical hooks only temporarily.
368
369=item $self->disable ($hook_name[, $hook_name..])
370
371Dynamically disable the given hooks.
372
373=back
374
119=head2 Hooks 375=head2 Hooks
120 376
121The following subroutines can be declared in extension files, and will be 377The following subroutines can be declared in extension files, and will be
122called whenever the relevant event happens. 378called whenever the relevant event happens.
123 379
124The first argument passed to them is an object private to each terminal 380The first argument passed to them is an extension oject as described in
125and extension package. You can call all C<urxvt::term> methods on it, but 381the in the C<Extension Objects> section.
126its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127object that is shared between all packages is stored in the C<term>
128member. It is, however, blessed intot he package of the extension script,
129so for all practical purposes you can treat an extension script as a class.
130 382
131All of them must return a boolean value. If it is true, then the event 383B<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, 384hooks 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. 385relevant action might not be carried out by the C++ code.
134 386
135When in doubt, return a false value (preferably C<()>). 387I<< When in doubt, return a false value (preferably C<()>). >>
136 388
137=over 4 389=over 4
138 390
139=item on_init $term 391=item on_init $term
140 392
141Called after a new terminal object has been initialized, but before 393Called after a new terminal object has been initialized, but before
142windows are created or the command gets run. Most methods are unsafe to 394windows are created or the command gets run. Most methods are unsafe to
143call or deliver senseless data, as terminal size and other characteristics 395call or deliver senseless data, as terminal size and other characteristics
144have not yet been determined. You can safely query and change resources, 396have not yet been determined. You can safely query and change resources
145though. 397and options, though. For many purposes the C<on_start> hook is a better
398place.
399
400=item on_start $term
401
402Called at the very end of initialisation of a new terminal, just before
403trying to map (display) the toplevel and returning to the mainloop.
404
405=item on_destroy $term
406
407Called whenever something tries to destroy terminal, when the terminal is
408still fully functional (not for long, though).
146 409
147=item on_reset $term 410=item on_reset $term
148 411
149Called after the screen is "reset" for any reason, such as resizing or 412Called 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 413control sequences. Here is where you can react on changes to size-related
151variables. 414variables.
152 415
153=item on_start $term 416=item on_child_start $term, $pid
154 417
155Called at the very end of initialisation of a new terminal, just before 418Called just after the child process has been C<fork>ed.
156returning to the mainloop. 419
420=item on_child_exit $term, $status
421
422Called just after the child process has exited. C<$status> is the status
423from C<waitpid>.
157 424
158=item on_sel_make $term, $eventtime 425=item on_sel_make $term, $eventtime
159 426
160Called whenever a selection has been made by the user, but before the 427Called 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 428selection text is copied, so changes to the beginning, end or type of the
175=item on_sel_extend $term 442=item on_sel_extend $term
176 443
177Called whenever the user tries to extend the selection (e.g. with a double 444Called whenever the user tries to extend the selection (e.g. with a double
178click) and is either supposed to return false (normal operation), or 445click) and is either supposed to return false (normal operation), or
179should extend the selection itelf and return true to suppress the built-in 446should extend the selection itelf and return true to suppress the built-in
180processing. 447processing. This can happen multiple times, as long as the callback
448returns true, it will be called on every further click by the user and is
449supposed to enlarge the selection more and more, if possible.
181 450
182See the F<selection> example extension. 451See the F<selection> example extension.
183 452
184=item on_view_change $term, $offset 453=item on_view_change $term, $offset
185 454
194than the scroll back buffer or the terminal. 463than the scroll back buffer or the terminal.
195 464
196It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 465It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 466$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198number of lines that will be in the scrollback buffer. 467number of lines that will be in the scrollback buffer.
199
200=item on_tty_activity $term *NYI*
201
202Called whenever the program(s) running in the urxvt window send output.
203 468
204=item on_osc_seq $term, $string 469=item on_osc_seq $term, $string
205 470
206Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 471Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207operating system command) is processed. Cursor position and other state 472operating system command) is processed. Cursor position and other state
220can filter/change and output the text yourself by returning a true value 485can filter/change and output the text yourself by returning a true value
221and calling C<< $term->scr_add_lines >> yourself. Please note that this 486and calling C<< $term->scr_add_lines >> yourself. Please note that this
222might be very slow, however, as your hook is called for B<all> text being 487might be very slow, however, as your hook is called for B<all> text being
223output. 488output.
224 489
490=item on_tt_write $term, $octets
491
492Called whenever some data is written to the tty/pty and can be used to
493suppress or filter tty input.
494
225=item on_line_update $term, $row 495=item on_line_update $term, $row
226 496
227Called whenever a line was updated or changed. Can be used to filter 497Called whenever a line was updated or changed. Can be used to filter
228screen output (e.g. underline urls or other useless stuff). Only lines 498screen output (e.g. underline urls or other useless stuff). Only lines
229that are being shown will be filtered, and, due to performance reasons, 499that are being shown will be filtered, and, due to performance reasons,
245 515
246=item on_refresh_end $term 516=item on_refresh_end $term
247 517
248Called just after the screen gets redrawn. See C<on_refresh_begin>. 518Called just after the screen gets redrawn. See C<on_refresh_begin>.
249 519
250=item on_keyboard_command $term, $string 520=item on_user_command $term, $string
251 521
252Called whenever the user presses a key combination that has a 522Called whenever the a user-configured event is being activated (e.g. via
253C<perl:string> action bound to it (see description of the B<keysym> 523a C<perl:string> action bound to a key, see description of the B<keysym>
254resource in the @@RXVT_NAME@@(1) manpage). 524resource in the @@RXVT_NAME@@(1) manpage).
525
526The event is simply the action string. This interface is assumed to change
527slightly in the future.
528
529=item on_x_event $term, $event
530
531Called on every X event received on the vt window (and possibly other
532windows). Should only be used as a last resort. Most event structure
533members are not passed.
255 534
256=item on_focus_in $term 535=item on_focus_in $term
257 536
258Called whenever the window gets the keyboard focus, before rxvt-unicode 537Called whenever the window gets the keyboard focus, before rxvt-unicode
259does focus in processing. 538does focus in processing.
261=item on_focus_out $term 540=item on_focus_out $term
262 541
263Called wheneever the window loses keyboard focus, before rxvt-unicode does 542Called wheneever the window loses keyboard focus, before rxvt-unicode does
264focus out processing. 543focus out processing.
265 544
545=item on_configure_notify $term, $event
546
547=item on_property_notify $term, $event
548
266=item on_key_press $term, $event, $octets 549=item on_key_press $term, $event, $keysym, $octets
267 550
268=item on_key_release $term, $event 551=item on_key_release $term, $event, $keysym
269 552
270=item on_button_press $term, $event 553=item on_button_press $term, $event
271 554
272=item on_button_release $term, $event 555=item on_button_release $term, $event
273 556
279 562
280Called whenever the corresponding X event is received for the terminal If 563Called whenever the corresponding X event is received for the terminal If
281the hook returns true, then the even will be ignored by rxvt-unicode. 564the hook returns true, then the even will be ignored by rxvt-unicode.
282 565
283The event is a hash with most values as named by Xlib (see the XEvent 566The event is a hash with most values as named by Xlib (see the XEvent
284manpage), with the additional members C<row> and C<col>, which are the row 567manpage), with the additional members C<row> and C<col>, which are the
285and column under the mouse cursor. 568(real, not screen-based) row and column under the mouse cursor.
286 569
287C<on_key_press> additionally receives the string rxvt-unicode would 570C<on_key_press> additionally receives the string rxvt-unicode would
288output, if any, in locale-specific encoding. 571output, if any, in locale-specific encoding.
289 572
290subwindow. 573subwindow.
291 574
575=item on_client_message $term, $event
576
577=item on_wm_protocols $term, $event
578
579=item on_wm_delete_window $term, $event
580
581Called when various types of ClientMessage events are received (all with
582format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
583
292=back 584=back
293 585
586=cut
587
588package urxvt;
589
590use utf8;
591use strict;
592use Carp ();
593use Scalar::Util ();
594use List::Util ();
595
596our $VERSION = 1;
597our $TERM;
598our @TERM_INIT;
599our @TERM_EXT;
600our @HOOKNAME;
601our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
602our %OPTION;
603
604our $LIBDIR;
605our $RESNAME;
606our $RESCLASS;
607our $RXVTNAME;
608
609our $NOCHAR = chr 0xffff;
610
294=head2 Variables in the C<urxvt> Package 611=head2 Variables in the C<urxvt> Package
295 612
296=over 4 613=over 4
614
615=item $urxvt::LIBDIR
616
617The rxvt-unicode library directory, where, among other things, the perl
618modules and scripts are stored.
619
620=item $urxvt::RESCLASS, $urxvt::RESCLASS
621
622The resource class and name rxvt-unicode uses to look up X resources.
623
624=item $urxvt::RXVTNAME
625
626The basename of the installed binaries, usually C<urxvt>.
297 627
298=item $urxvt::TERM 628=item $urxvt::TERM
299 629
300The current terminal. This variable stores the current C<urxvt::term> 630The current terminal. This variable stores the current C<urxvt::term>
301object, whenever a callback/hook is executing. 631object, whenever a callback/hook is executing.
302 632
633=item @urxvt::TERM_INIT
634
635All coderefs in this array will be called as methods of the next newly
636created C<urxvt::term> object (during the C<on_init> phase). The array
637gets cleared before the codereferences that were in it are being executed,
638so coderefs can push themselves onto it again if they so desire.
639
640This complements to the perl-eval commandline option, but gets executed
641first.
642
643=item @urxvt::TERM_EXT
644
645Works similar to C<@TERM_INIT>, but contains perl package/class names, which
646get registered as normal extensions after calling the hooks in C<@TERM_INIT>
647but before other extensions. Gets cleared just like C<@TERM_INIT>.
648
303=back 649=back
304 650
305=head2 Functions in the C<urxvt> Package 651=head2 Functions in the C<urxvt> Package
306 652
307=over 4 653=over 4
308
309=item $term = new urxvt [arg...]
310
311Creates a new terminal, very similar as if you had started it with
312C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313if the new instance couldn't be created. Returns C<undef> if the new
314instance didn't initialise perl, and the terminal object otherwise. The
315C<init> and C<start> hooks will be called during the call.
316 654
317=item urxvt::fatal $errormessage 655=item urxvt::fatal $errormessage
318 656
319Fatally aborts execution with the given error message. Avoid at all 657Fatally aborts execution with the given error message. Avoid at all
320costs! The only time this is acceptable is when the terminal process 658costs! The only time this is acceptable is when the terminal process
327that calls this function. 665that calls this function.
328 666
329Using this function has the advantage that its output ends up in the 667Using this function has the advantage that its output ends up in the
330correct place, e.g. on stderr of the connecting urxvtc client. 668correct place, e.g. on stderr of the connecting urxvtc client.
331 669
670Messages have a size limit of 1023 bytes currently.
671
672=item @terms = urxvt::termlist
673
674Returns all urxvt::term objects that exist in this process, regardless of
675wether they are started, being destroyed etc., so be careful. Only term
676objects that have perl extensions attached will be returned (because there
677is no urxvt::term objet associated with others).
678
332=item $time = urxvt::NOW 679=item $time = urxvt::NOW
333 680
334Returns the "current time" (as per the event loop). 681Returns the "current time" (as per the event loop).
335 682
336=item urxvt::CurrentTime 683=item urxvt::CurrentTime
337 684
338=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 685=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 686Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340Button4Mask, Button5Mask, AnyModifier 687Button4Mask, Button5Mask, AnyModifier
341 688
689=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
690ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
691PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
692Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
693KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
694ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
695FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
696
697=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
698EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
699GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
700UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
701ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
702CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
703SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
704
342Various constants for use in X events. 705Various constants for use in X calls and event processing.
343 706
344=back 707=back
345 708
346=head2 RENDITION 709=head2 RENDITION
347 710
374 737
375=item $background = urxvt::GET_BASEBG $rend 738=item $background = urxvt::GET_BASEBG $rend
376 739
377Return the foreground/background colour index, respectively. 740Return the foreground/background colour index, respectively.
378 741
379=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 742=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380 743
381=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 744=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
382 745
383Replace the foreground/background colour in the rendition mask with the 746Replace the foreground/background colour in the rendition mask with the
384specified one. 747specified one.
385 748
386=item $value = urxvt::GET_CUSTOM ($rend) 749=item $value = urxvt::GET_CUSTOM $rend
387 750
388Return the "custom" value: Every rendition has 5 bits for use by 751Return the "custom" value: Every rendition has 5 bits for use by
389extensions. They can be set and changed as you like and are initially 752extensions. They can be set and changed as you like and are initially
390zero. 753zero.
391 754
392=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 755=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393 756
394Change the custom value. 757Change the custom value.
395 758
396=back 759=back
397 760
398=cut 761=cut
399 762
400package urxvt;
401
402use utf8;
403use strict;
404use Scalar::Util ();
405use List::Util ();
406
407our $TERM;
408our @HOOKNAME;
409our %OPTION;
410our $LIBDIR;
411
412BEGIN { 763BEGIN {
413 urxvt->bootstrap;
414
415 # overwrite perl's warn 764 # overwrite perl's warn
416 *CORE::GLOBAL::warn = sub { 765 *CORE::GLOBAL::warn = sub {
417 my $msg = join "", @_; 766 my $msg = join "", @_;
418 $msg .= "\n" 767 $msg .= "\n"
419 unless $msg =~ /\n$/; 768 unless $msg =~ /\n$/;
420 urxvt::warn ($msg); 769 urxvt::warn ($msg);
421 }; 770 };
422} 771}
423 772
424my @hook_count; 773no warnings 'utf8';
774
425my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 775my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
426 776
427sub verbose { 777sub verbose {
428 my ($level, $msg) = @_; 778 my ($level, $msg) = @_;
429 warn "$msg\n" if $level <= $verbosity; 779 warn "$msg\n" if $level <= $verbosity;
430} 780}
431 781
432# find on_xxx subs in the package and register them
433# as hooks
434sub register_package($) {
435 my ($pkg) = @_;
436
437 for my $htype (0.. $#HOOKNAME) {
438 my $name = $HOOKNAME[$htype];
439
440 my $ref = $pkg->can ("on_" . lc $name)
441 or next;
442
443 $TERM->{_hook}[$htype]{$pkg} = $ref;
444 $hook_count[$htype]++
445 or set_should_invoke $htype, 1;
446 }
447}
448
449my $extension_pkg = "extension0000";
450my %extension_pkg; 782my %extension_pkg;
451 783
452# load a single script into its own package, once only 784# load a single script into its own package, once only
453sub extension_package($) { 785sub extension_package($) {
454 my ($path) = @_; 786 my ($path) = @_;
455 787
456 $extension_pkg{$path} ||= do { 788 $extension_pkg{$path} ||= do {
457 my $pkg = "urxvt::" . ($extension_pkg++); 789 $path =~ /([^\/\\]+)$/;
790 my $pkg = $1;
791 $pkg =~ s/[^[:word:]]/_/g;
792 $pkg = "urxvt::ext::$pkg";
458 793
459 verbose 3, "loading extension '$path' into package '$pkg'"; 794 verbose 3, "loading extension '$path' into package '$pkg'";
460 795
461 open my $fh, "<:raw", $path 796 open my $fh, "<:raw", $path
462 or die "$path: $!"; 797 or die "$path: $!";
463 798
464 my $source = "package $pkg; use strict; use utf8;\n" 799 my $source =
465 . "use base urxvt::term::proxy::;\n" 800 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
466 . "#line 1 \"$path\"\n{\n" 801 . "#line 1 \"$path\"\n{\n"
467 . (do { local $/; <$fh> }) 802 . (do { local $/; <$fh> })
468 . "\n};\n1"; 803 . "\n};\n1";
469 804
805 eval $source
470 eval $source or die "$path: $@"; 806 or die "$path: $@";
471 807
472 $pkg 808 $pkg
473 } 809 }
474} 810}
475 811
481 my $htype = shift; 817 my $htype = shift;
482 818
483 if ($htype == 0) { # INIT 819 if ($htype == 0) { # INIT
484 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 820 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
485 821
486 my %want_ext; 822 my %ext_arg;
487 823
824 {
825 my @init = @TERM_INIT;
826 @TERM_INIT = ();
827 $_->($TERM) for @init;
828 my @pkg = @TERM_EXT;
829 @TERM_EXT = ();
830 $TERM->register_package ($_) for @pkg;
831 }
832
488 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 833 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
489 if ($_ eq "default") { 834 if ($_ eq "default") {
490 $want_ext{$_}++ for qw(selection option-popup); 835 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
491 } elsif (/^-(.*)$/) { 836 } elsif (/^-(.*)$/) {
492 delete $want_ext{$1}; 837 delete $ext_arg{$1};
838 } elsif (/^([^<]+)<(.*)>$/) {
839 push @{ $ext_arg{$1} }, $2;
493 } else { 840 } else {
494 $want_ext{$_}++; 841 $ext_arg{$_} ||= [];
495 } 842 }
496 } 843 }
497 844
498 for my $ext (keys %want_ext) { 845 while (my ($ext, $argv) = each %ext_arg) {
499 my @files = grep -f $_, map "$_/$ext", @dirs; 846 my @files = grep -f $_, map "$_/$ext", @dirs;
500 847
501 if (@files) { 848 if (@files) {
502 register_package extension_package $files[0]; 849 $TERM->register_package (extension_package $files[0], $argv);
503 } else { 850 } else {
504 warn "perl extension '$ext' not found in perl library search path\n"; 851 warn "perl extension '$ext' not found in perl library search path\n";
505 } 852 }
506 } 853 }
854
855 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
856 warn $@ if $@;
507 } 857 }
508 858
509 $retval = undef; 859 $retval = undef;
510 860
511 if (my $cb = $TERM->{_hook}[$htype]) { 861 if (my $cb = $TERM->{_hook}[$htype]) {
513 if $verbosity >= 10; 863 if $verbosity >= 10;
514 864
515 keys %$cb; 865 keys %$cb;
516 866
517 while (my ($pkg, $cb) = each %$cb) { 867 while (my ($pkg, $cb) = each %$cb) {
518 eval { 868 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
519 $retval = $cb->( 869 $retval ||= $retval_;
520 $TERM->{_pkg}{$pkg} ||= do {
521 my $proxy = bless { }, $pkg;
522 Scalar::Util::weaken ($proxy->{term} = $TERM);
523 $proxy
524 },
525 @_,
526 ) and last;
527 };
528 warn $@ if $@;#d#
529 }
530 }
531 870
532 if ($htype == 1) { # DESTROY 871 if ($@) {
533 # remove hooks if unused 872 $TERM->ungrab; # better to lose the grab than the session
534 if (my $hook = $TERM->{_hook}) { 873 warn $@;
535 for my $htype (0..$#$hook) {
536 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
537 or set_should_invoke $htype, 0;
538 } 874 }
539 } 875 }
540 876
877 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
878 if $verbosity >= 11;
879 }
880
881 if ($htype == 1) { # DESTROY
541 # clear package objects 882 # clear package objects
542 %$_ = () for values %{ $TERM->{_pkg} }; 883 %$_ = () for values %{ $TERM->{_pkg} };
543 884
544 # clear package 885 # clear package
545 %$TERM = (); 886 %$TERM = ();
546 } 887 }
547 888
548 $retval 889 $retval
549} 890}
550 891
551sub urxvt::term::proxy::AUTOLOAD { 892# urxvt::term::extension
552 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 893
894package urxvt::term::extension;
895
896sub enable {
897 my ($self, %hook) = @_;
898 my $pkg = $self->{_pkg};
899
900 while (my ($name, $cb) = each %hook) {
901 my $htype = $HOOKTYPE{uc $name};
902 defined $htype
903 or Carp::croak "unsupported hook type '$name'";
904
905 $self->set_should_invoke ($htype, +1)
906 unless exists $self->{term}{_hook}[$htype]{$pkg};
907
908 $self->{term}{_hook}[$htype]{$pkg} = $cb;
909 }
910}
911
912sub disable {
913 my ($self, @hook) = @_;
914 my $pkg = $self->{_pkg};
915
916 for my $name (@hook) {
917 my $htype = $HOOKTYPE{uc $name};
918 defined $htype
919 or Carp::croak "unsupported hook type '$name'";
920
921 $self->set_should_invoke ($htype, -1)
922 if delete $self->{term}{_hook}[$htype]{$pkg};
923 }
924}
925
926our $AUTOLOAD;
927
928sub AUTOLOAD {
929 $AUTOLOAD =~ /:([^:]+)$/
553 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 930 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
554 931
555 eval qq{ 932 eval qq{
556 sub $urxvt::term::proxy::AUTOLOAD { 933 sub $AUTOLOAD {
557 my \$proxy = shift; 934 my \$proxy = shift;
558 \$proxy->{term}->$1 (\@_) 935 \$proxy->{term}->$1 (\@_)
559 } 936 }
560 1 937 1
561 } or die "FATAL: unable to compile method forwarder: $@"; 938 } or die "FATAL: unable to compile method forwarder: $@";
562 939
563 goto &$urxvt::term::proxy::AUTOLOAD; 940 goto &$AUTOLOAD;
564} 941}
942
943sub DESTROY {
944 # nop
945}
946
947# urxvt::destroy_hook
565 948
566sub urxvt::destroy_hook::DESTROY { 949sub urxvt::destroy_hook::DESTROY {
567 ${$_[0]}->(); 950 ${$_[0]}->();
568} 951}
569 952
570sub urxvt::destroy_hook(&) { 953sub urxvt::destroy_hook(&) {
571 bless \shift, urxvt::destroy_hook:: 954 bless \shift, urxvt::destroy_hook::
572} 955}
573 956
957package urxvt::anyevent;
958
959=head2 The C<urxvt::anyevent> Class
960
961The sole purpose of this class is to deliver an interface to the
962C<AnyEvent> module - any module using it will work inside urxvt without
963further programming. The only exception is that you cannot wait on
964condition variables, but non-blocking condvar use is ok. What this means
965is that you cannot use blocking APIs, but the non-blocking variant should
966work.
967
968=cut
969
970our $VERSION = 1;
971
972$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
973push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
974
975sub timer {
976 my ($class, %arg) = @_;
977
978 my $cb = $arg{cb};
979
980 urxvt::timer
981 ->new
982 ->start (urxvt::NOW + $arg{after})
983 ->cb (sub {
984 $_[0]->stop; # need to cancel manually
985 $cb->();
986 })
987}
988
989sub io {
990 my ($class, %arg) = @_;
991
992 my $cb = $arg{cb};
993
994 bless [$arg{fh}, urxvt::iow
995 ->new
996 ->fd (fileno $arg{fh})
997 ->events (($arg{poll} =~ /r/ ? 1 : 0)
998 | ($arg{poll} =~ /w/ ? 2 : 0))
999 ->start
1000 ->cb (sub {
1001 $cb->(($_[1] & 1 ? 'r' : '')
1002 . ($_[1] & 2 ? 'w' : ''));
1003 })],
1004 urxvt::anyevent::
1005}
1006
1007sub DESTROY {
1008 $_[0][1]->stop;
1009}
1010
1011sub condvar {
1012 bless \my $flag, urxvt::anyevent::condvar::
1013}
1014
1015sub urxvt::anyevent::condvar::broadcast {
1016 ${$_[0]}++;
1017}
1018
1019sub urxvt::anyevent::condvar::wait {
1020 unless (${$_[0]}) {
1021 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
1022 }
1023}
1024
1025package urxvt::term;
1026
574=head2 The C<urxvt::term> Class 1027=head2 The C<urxvt::term> Class
575 1028
576=over 4 1029=over 4
577 1030
1031=cut
1032
1033# find on_xxx subs in the package and register them
1034# as hooks
1035sub register_package {
1036 my ($self, $pkg, $argv) = @_;
1037
1038 no strict 'refs';
1039
1040 urxvt::verbose 6, "register package $pkg to $self";
1041
1042 @{"$pkg\::ISA"} = urxvt::term::extension::;
1043
1044 my $proxy = bless {
1045 _pkg => $pkg,
1046 argv => $argv,
1047 }, $pkg;
1048 Scalar::Util::weaken ($proxy->{term} = $self);
1049
1050 $self->{_pkg}{$pkg} = $proxy;
1051
1052 for my $name (@HOOKNAME) {
1053 if (my $ref = $pkg->can ("on_" . lc $name)) {
1054 $proxy->enable ($name => $ref);
1055 }
1056 }
1057}
1058
1059=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1060
1061Creates a new terminal, very similar as if you had started it with system
1062C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1063hash which defines the environment of the new terminal.
1064
1065Croaks (and probably outputs an error message) if the new instance
1066couldn't be created. Returns C<undef> if the new instance didn't
1067initialise perl, and the terminal object otherwise. The C<init> and
1068C<start> hooks will be called before this call returns, and are free to
1069refer to global data (which is race free).
1070
1071=cut
1072
1073sub new {
1074 my ($class, $env, @args) = @_;
1075
1076 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1077 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1078
1079 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1080}
1081
578=item $term->destroy 1082=item $term->destroy
579 1083
580Destroy the terminal object (close the window, free resources etc.). 1084Destroy the terminal object (close the window, free resources
1085etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1086watchers (timers, io watchers) are still active.
1087
1088=item $term->exec_async ($cmd[, @args])
1089
1090Works like the combination of the C<fork>/C<exec> builtins, which executes
1091("starts") programs in the background. This function takes care of setting
1092the user environment before exec'ing the command (e.g. C<PATH>) and should
1093be preferred over explicit calls to C<exec> or C<system>.
1094
1095Returns the pid of the subprocess or C<undef> on error.
1096
1097=cut
1098
1099sub exec_async {
1100 my $self = shift;
1101
1102 my $pid = fork;
1103
1104 return $pid
1105 if !defined $pid or $pid;
1106
1107 %ENV = %{ $self->env };
1108
1109 exec @_;
1110 urxvt::_exit 255;
1111}
581 1112
582=item $isset = $term->option ($optval[, $set]) 1113=item $isset = $term->option ($optval[, $set])
583 1114
584Returns true if the option specified by C<$optval> is enabled, and 1115Returns true if the option specified by C<$optval> is enabled, and
585optionally change it. All option values are stored by name in the hash 1116optionally change it. All option values are stored by name in the hash
588Here is a a likely non-exhaustive list of option names, please see the 1119Here is a a likely non-exhaustive list of option names, please see the
589source file F</src/optinc.h> to see the actual list: 1120source file F</src/optinc.h> to see the actual list:
590 1121
591 borderLess console cursorBlink cursorUnderline hold iconic insecure 1122 borderLess console cursorBlink cursorUnderline hold iconic insecure
592 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1123 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
593 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1124 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
594 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1125 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
595 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1126 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
596 tripleclickwords utmpInhibit visualBell 1127 transparent tripleclickwords utmpInhibit visualBell
597 1128
598=item $value = $term->resource ($name[, $newval]) 1129=item $value = $term->resource ($name[, $newval])
599 1130
600Returns the current resource value associated with a given name and 1131Returns the current resource value associated with a given name and
601optionally sets a new value. Setting values is most useful in the C<init> 1132optionally sets a new value. Setting values is most useful in the C<init>
618 1149
619 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1150 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
620 borderLess color cursorBlink cursorUnderline cutchars delete_key 1151 borderLess color cursorBlink cursorUnderline cutchars delete_key
621 display_name embed ext_bwidth fade font geometry hold iconName 1152 display_name embed ext_bwidth fade font geometry hold iconName
622 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1153 imFont imLocale inputMethod insecure int_bwidth intensityStyles
623 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1154 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
624 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1155 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
625 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1156 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
626 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1157 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
627 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1158 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
628 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1159 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
629 shade term_name title transparent transparent_all tripleclickwords 1160 secondaryScreen secondaryScroll selectstyle shade term_name title
630 utmpInhibit visualBell 1161 transient_for transparent transparent_all tripleclickwords utmpInhibit
1162 visualBell
631 1163
632=cut 1164=cut
633 1165
634sub urxvt::term::resource($$;$) { 1166sub resource($$;$) {
635 my ($self, $name) = (shift, shift); 1167 my ($self, $name) = (shift, shift);
636 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1168 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
637 &urxvt::term::_resource 1169 &urxvt::term::_resource
638} 1170}
639 1171
1172=item $value = $term->x_resource ($pattern)
1173
1174Returns the X-Resource for the given pattern, excluding the program or
1175class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1176same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1177resource with that pattern exists.
1178
1179This method should only be called during the C<on_start> hook, as there is
1180only one resource database per display, and later invocations might return
1181the wrong resources.
1182
1183=item $success = $term->parse_keysym ($keysym_spec, $command_string)
1184
1185Adds a keymap translation exactly as specified via a resource. See the
1186C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1187
640=item $rend = $term->rstyle ([$new_rstyle]) 1188=item $rend = $term->rstyle ([$new_rstyle])
641 1189
642Return and optionally change the current rendition. Text that is output by 1190Return and optionally change the current rendition. Text that is output by
643the terminal application will use this style. 1191the terminal application will use this style.
644 1192
654=item ($row, $col) = $term->selection_end ([$row, $col]) 1202=item ($row, $col) = $term->selection_end ([$row, $col])
655 1203
656Return the current values of the selection mark, begin or end positions, 1204Return the current values of the selection mark, begin or end positions,
657and optionally set them to new values. 1205and optionally set them to new values.
658 1206
1207=item $term->selection_make ($eventtime[, $rectangular])
1208
1209Tries to make a selection as set by C<selection_beg> and
1210C<selection_end>. If C<$rectangular> is true (default: false), a
1211rectangular selection will be made. This is the prefered function to make
1212a selection.
1213
659=item $success = $term->selection_grab ($eventtime) 1214=item $success = $term->selection_grab ($eventtime)
660 1215
661Try to request the primary selection from the server (for example, as set 1216Try to request the primary selection text from the server (for example, as
662by the next method). 1217set by the next method). No visual feedback will be given. This function
1218is mostly useful from within C<on_sel_grab> hooks.
663 1219
664=item $oldtext = $term->selection ([$newtext]) 1220=item $oldtext = $term->selection ([$newtext])
665 1221
666Return the current selection text and optionally replace it by C<$newtext>. 1222Return the current selection text and optionally replace it by C<$newtext>.
667 1223
668#=item $term->overlay ($x, $y, $text) 1224=item $term->overlay_simple ($x, $y, $text)
669# 1225
670#Create a simple multi-line overlay box. See the next method for details. 1226Create a simple multi-line overlay box. See the next method for details.
671# 1227
672#=cut 1228=cut
673# 1229
674#sub urxvt::term::scr_overlay { 1230sub overlay_simple {
675# my ($self, $x, $y, $text) = @_; 1231 my ($self, $x, $y, $text) = @_;
676# 1232
677# my @lines = split /\n/, $text; 1233 my @lines = split /\n/, $text;
678# 1234
679# my $w = 0; 1235 my $w = List::Util::max map $self->strwidth ($_), @lines;
680# for (map $self->strwidth ($_), @lines) { 1236
681# $w = $_ if $w < $_;
682# }
683#
684# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1237 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
685# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1238 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
686#} 1239
1240 $overlay
1241}
687 1242
688=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1243=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
689 1244
690Create a new (empty) overlay at the given position with the given 1245Create a new (empty) overlay at the given position with the given
691width/height. C<$rstyle> defines the initial rendition style 1246width/height. C<$rstyle> defines the initial rendition style
726C<$event> I<must> be the event causing the menu to pop up (a button event, 1281C<$event> I<must> be the event causing the menu to pop up (a button event,
727currently). 1282currently).
728 1283
729=cut 1284=cut
730 1285
731sub urxvt::term::popup { 1286sub popup {
732 my ($self, $event) = @_; 1287 my ($self, $event) = @_;
733 1288
734 $self->grab ($event->{time}, 1) 1289 $self->grab ($event->{time}, 1)
735 or return; 1290 or return;
736 1291
758 1313
759=item $string = $term->locale_decode ($octets) 1314=item $string = $term->locale_decode ($octets)
760 1315
761Convert the given locale-encoded octets into a perl string. 1316Convert the given locale-encoded octets into a perl string.
762 1317
1318=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1319
1320XORs the rendition values in the given span with the provided value
1321(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1322refresh hooks to provide effects similar to the selection.
1323
1324=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1325
1326Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1327whitespace will additionally be xored with the C<$rstyle2>, which defaults
1328to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1329it instead. Both styles I<MUST NOT> contain font styles.
1330
1331=item $term->scr_bell
1332
1333Ring the bell!
1334
763=item $term->scr_add_lines ($string) 1335=item $term->scr_add_lines ($string)
764 1336
765Write the given text string to the screen, as if output by the application 1337Write the given text string to the screen, as if output by the application
766running inside the terminal. It may not contain command sequences (escape 1338running inside the terminal. It may not contain command sequences (escape
767codes), but is free to use line feeds, carriage returns and tabs. The 1339codes), but is free to use line feeds, carriage returns and tabs. The
769 1341
770Normally its not a good idea to use this function, as programs might be 1342Normally its not a good idea to use this function, as programs might be
771confused by changes in cursor position or scrolling. Its useful inside a 1343confused by changes in cursor position or scrolling. Its useful inside a
772C<on_add_lines> hook, though. 1344C<on_add_lines> hook, though.
773 1345
1346=item $term->scr_change_screen ($screen)
1347
1348Switch to given screen - 0 primary, 1 secondary.
1349
774=item $term->cmd_parse ($octets) 1350=item $term->cmd_parse ($octets)
775 1351
776Similar to C<scr_add_lines>, but the argument must be in the 1352Similar to C<scr_add_lines>, but the argument must be in the
777locale-specific encoding of the terminal and can contain command sequences 1353locale-specific encoding of the terminal and can contain command sequences
778(escape codes) that will be interpreted. 1354(escape codes) that will be interpreted.
781 1357
782Write the octets given in C<$data> to the tty (i.e. as program input). To 1358Write the octets given in C<$data> to the tty (i.e. as program input). To
783pass characters instead of octets, you should convert your strings first 1359pass characters instead of octets, you should convert your strings first
784to the locale-specific encoding using C<< $term->locale_encode >>. 1360to the locale-specific encoding using C<< $term->locale_encode >>.
785 1361
1362=item $old_events = $term->pty_ev_events ([$new_events])
1363
1364Replaces the event mask of the pty watcher by the given event mask. Can
1365be used to suppress input and output handling to the pty/tty. See the
1366description of C<< urxvt::timer->events >>. Make sure to always restore
1367the previous value.
1368
1369=item $fd = $term->pty_fd
1370
1371Returns the master file descriptor for the pty in use, or C<-1> if no pty
1372is used.
1373
786=item $windowid = $term->parent 1374=item $windowid = $term->parent
787 1375
788Return the window id of the toplevel window. 1376Return the window id of the toplevel window.
789 1377
790=item $windowid = $term->vt 1378=item $windowid = $term->vt
791 1379
792Return the window id of the terminal window. 1380Return the window id of the terminal window.
793 1381
1382=item $term->vt_emask_add ($x_event_mask)
1383
1384Adds the specified events to the vt event mask. Useful e.g. when you want
1385to receive pointer events all the times:
1386
1387 $term->vt_emask_add (urxvt::PointerMotionMask);
1388
794=item $window_width = $term->width 1389=item $window_width = $term->width
795 1390
796=item $window_height = $term->height 1391=item $window_height = $term->height
797 1392
798=item $font_width = $term->fwidth 1393=item $font_width = $term->fwidth
811 1406
812=item $max_scrollback = $term->saveLines 1407=item $max_scrollback = $term->saveLines
813 1408
814=item $nrow_plus_saveLines = $term->total_rows 1409=item $nrow_plus_saveLines = $term->total_rows
815 1410
816=item $lines_in_scrollback = $term->nsaved 1411=item $topmost_scrollback_row = $term->top_row
817 1412
818Return various integers describing terminal characteristics. 1413Return various integers describing terminal characteristics.
1414
1415=item $x_display = $term->display_id
1416
1417Return the DISPLAY used by rxvt-unicode.
1418
1419=item $lc_ctype = $term->locale
1420
1421Returns the LC_CTYPE category string used by this rxvt-unicode.
1422
1423=item $env = $term->env
1424
1425Returns a copy of the environment in effect for the terminal as a hashref
1426similar to C<\%ENV>.
1427
1428=cut
1429
1430sub env {
1431 if (my $env = $_[0]->_env) {
1432 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1433 } else {
1434 +{ %ENV }
1435 }
1436}
819 1437
820=item $modifiermask = $term->ModLevel3Mask 1438=item $modifiermask = $term->ModLevel3Mask
821 1439
822=item $modifiermask = $term->ModMetaMask 1440=item $modifiermask = $term->ModMetaMask
823 1441
824=item $modifiermask = $term->ModNumLockMask 1442=item $modifiermask = $term->ModNumLockMask
825 1443
826Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1444Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
827AltGr), the meta key (often Alt) and the num lock key, if applicable. 1445AltGr), the meta key (often Alt) and the num lock key, if applicable.
828 1446
1447=item $screen = $term->current_screen
1448
1449Returns the currently displayed screen (0 primary, 1 secondary).
1450
1451=item $cursor_is_hidden = $term->hidden_cursor
1452
1453Returns wether the cursor is currently hidden or not.
1454
829=item $view_start = $term->view_start ([$newvalue]) 1455=item $view_start = $term->view_start ([$newvalue])
830 1456
831Returns the negative row number of the topmost line. Minimum value is 1457Returns the row number of the topmost displayed line. Maximum value is
832C<0>, which displays the normal terminal contents. Larger values scroll 1458C<0>, which displays the normal terminal contents. Lower values scroll
833this many lines into the scrollback buffer. 1459this many lines into the scrollback buffer.
834 1460
835=item $term->want_refresh 1461=item $term->want_refresh
836 1462
837Requests a screen refresh. At the next opportunity, rxvt-unicode will 1463Requests a screen refresh. At the next opportunity, rxvt-unicode will
852line, starting at column C<$start_col> (default C<0>), which is useful 1478line, starting at column C<$start_col> (default C<0>), which is useful
853to replace only parts of a line. The font index in the rendition will 1479to replace only parts of a line. The font index in the rendition will
854automatically be updated. 1480automatically be updated.
855 1481
856C<$text> is in a special encoding: tabs and wide characters that use more 1482C<$text> is in a special encoding: tabs and wide characters that use more
857than one cell when displayed are padded with urxvt::NOCHAR characters 1483than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
858(C<chr 65535>). Characters with combining characters and other characters 1484characters. Characters with combining characters and other characters that
859that do not fit into the normal tetx encoding will be replaced with 1485do not fit into the normal tetx encoding will be replaced with characters
860characters in the private use area. 1486in the private use area.
861 1487
862You have to obey this encoding when changing text. The advantage is 1488You have to obey this encoding when changing text. The advantage is
863that C<substr> and similar functions work on screen cells and not on 1489that C<substr> and similar functions work on screen cells and not on
864characters. 1490characters.
865 1491
916Return the row number of the first/last row of the line, respectively. 1542Return the row number of the first/last row of the line, respectively.
917 1543
918=item $offset = $line->offset_of ($row, $col) 1544=item $offset = $line->offset_of ($row, $col)
919 1545
920Returns the character offset of the given row|col pair within the logical 1546Returns the character offset of the given row|col pair within the logical
921line. 1547line. Works for rows outside the line, too, and returns corresponding
1548offsets outside the string.
922 1549
923=item ($row, $col) = $line->coord_of ($offset) 1550=item ($row, $col) = $line->coord_of ($offset)
924 1551
925Translates a string offset into terminal coordinates again. 1552Translates a string offset into terminal coordinates again.
926 1553
927=back 1554=back
928 1555
929=cut 1556=cut
930 1557
931sub urxvt::term::line { 1558sub line {
932 my ($self, $row) = @_; 1559 my ($self, $row) = @_;
933 1560
934 my $maxrow = $self->nrow - 1; 1561 my $maxrow = $self->nrow - 1;
935 1562
936 my ($beg, $end) = ($row, $row); 1563 my ($beg, $end) = ($row, $row);
1000 $offset / $self->{ncol} + $self->{beg}, 1627 $offset / $self->{ncol} + $self->{beg},
1001 $offset % $self->{ncol} 1628 $offset % $self->{ncol}
1002 ) 1629 )
1003} 1630}
1004 1631
1005=item ($row, $col) = $line->coord_of ($offset)
1006=item $text = $term->special_encode $string 1632=item $text = $term->special_encode $string
1007 1633
1008Converts a perl string into the special encoding used by rxvt-unicode, 1634Converts a perl string into the special encoding used by rxvt-unicode,
1009where one character corresponds to one screen cell. See 1635where one character corresponds to one screen cell. See
1010C<< $term->ROW_t >> for details. 1636C<< $term->ROW_t >> for details.
1012=item $string = $term->special_decode $text 1638=item $string = $term->special_decode $text
1013 1639
1014Converts rxvt-unicodes text reprsentation into a perl string. See 1640Converts rxvt-unicodes text reprsentation into a perl string. See
1015C<< $term->ROW_t >> for details. 1641C<< $term->ROW_t >> for details.
1016 1642
1643=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1644
1645=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1646
1647Register/unregister a synchronous button grab. See the XGrabButton
1648manpage.
1649
1650=item $success = $term->grab ($eventtime[, $sync])
1651
1652Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1653synchronous (C<$sync> is true). Also remembers the grab timestampe.
1654
1655=item $term->allow_events_async
1656
1657Calls XAllowEvents with AsyncBoth for the most recent grab.
1658
1659=item $term->allow_events_sync
1660
1661Calls XAllowEvents with SyncBoth for the most recent grab.
1662
1663=item $term->allow_events_replay
1664
1665Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1666recent grab.
1667
1668=item $term->ungrab
1669
1670Calls XUngrab for the most recent grab. Is called automatically on
1671evaluation errors, as it is better to lose the grab in the error case as
1672the session.
1673
1674=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1675
1676=item $atom_name = $term->XGetAtomName ($atom)
1677
1678=item @atoms = $term->XListProperties ($window)
1679
1680=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1681
1682=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1683
1684=item $term->XDeleteProperty ($window, $property)
1685
1686=item $window = $term->DefaultRootWindow
1687
1688=item $term->XReparentWindow ($window, $parent, [$x, $y])
1689
1690=item $term->XMapWindow ($window)
1691
1692=item $term->XUnmapWindow ($window)
1693
1694=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1695
1696=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1697
1698=item $term->XChangeInput ($window, $add_events[, $del_events])
1699
1700Various X or X-related functions. The C<$term> object only serves as
1701the source of the display, otherwise those functions map more-or-less
1702directory onto the X functions of the same name.
1703
1017=back 1704=back
1018 1705
1706=cut
1707
1708package urxvt::popup;
1709
1019=head2 The C<urxvt::popup> Class 1710=head2 The C<urxvt::popup> Class
1020 1711
1021=over 4 1712=over 4
1022 1713
1023=cut 1714=cut
1024
1025package urxvt::popup;
1026 1715
1027sub add_item { 1716sub add_item {
1028 my ($self, $item) = @_; 1717 my ($self, $item) = @_;
1029 1718
1719 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1720 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1721 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1722
1723 $item->{render} ||= sub { $_[0]{text} };
1724
1030 push @{ $self->{item} }, $item; 1725 push @{ $self->{item} }, $item;
1031} 1726}
1727
1728=item $popup->add_title ($title)
1729
1730Adds a non-clickable title to the popup.
1731
1732=cut
1733
1734sub add_title {
1735 my ($self, $title) = @_;
1736
1737 $self->add_item ({
1738 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1739 text => $title,
1740 activate => sub { },
1741 });
1742}
1743
1744=item $popup->add_separator ([$sepchr])
1745
1746Creates a separator, optionally using the character given as C<$sepchr>.
1747
1748=cut
1749
1750sub add_separator {
1751 my ($self, $sep) = @_;
1752
1753 $sep ||= "=";
1754
1755 $self->add_item ({
1756 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1757 text => "",
1758 render => sub { $sep x $self->{term}->ncol },
1759 activate => sub { },
1760 });
1761}
1762
1763=item $popup->add_button ($text, $cb)
1764
1765Adds a clickable button to the popup. C<$cb> is called whenever it is
1766selected.
1767
1768=cut
1032 1769
1033sub add_button { 1770sub add_button {
1034 my ($self, $text, $cb) = @_; 1771 my ($self, $text, $cb) = @_;
1035 1772
1036 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb, 1773 $self->add_item ({ type => "button", text => $text, activate => $cb});
1037 render => sub { $_[0]{text} },
1038 });
1039} 1774}
1775
1776=item $popup->add_toggle ($text, $cb, $initial_value)
1777
1778Adds a toggle/checkbox item to the popup. Teh callback gets called
1779whenever it gets toggled, with a boolean indicating its value as its first
1780argument.
1781
1782=cut
1040 1783
1041sub add_toggle { 1784sub add_toggle {
1042 my ($self, $text, $cb, $value) = @_; 1785 my ($self, $text, $cb, $value) = @_;
1043 1786
1044 my $item; $item = { 1787 my $item; $item = {
1045 type => "button", 1788 type => "button",
1046 text => " $text", 1789 text => " $text",
1047 value => $value, 1790 value => $value,
1048 render => sub { ($item->{value} ? "* " : " ") . $text }, 1791 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1049 activate => sub { $cb->($item->{value} = !$item->{value}); }, 1792 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1050 }; 1793 };
1051 1794
1052 $self->add_item ($item); 1795 $self->add_item ($item);
1053} 1796}
1797
1798=item $popup->show
1799
1800Displays the popup (which is initially hidden).
1801
1802=cut
1054 1803
1055sub show { 1804sub show {
1056 my ($self) = @_; 1805 my ($self) = @_;
1057 1806
1058 local $urxvt::popup::self = $self; 1807 local $urxvt::popup::self = $self;
1059 1808
1060 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1809 my $env = $self->{term}->env;
1810 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1811 delete $env->{LC_ALL};
1812 $env->{LC_CTYPE} = $self->{term}->locale;
1813
1814 urxvt::term->new ($env, "popup",
1815 "--perl-lib" => "", "--perl-ext-common" => "",
1816 "-pty-fd" => -1, "-sl" => 0,
1817 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1061 "--transient-for" => $self->{term}->parent, 1818 "--transient-for" => $self->{term}->parent,
1819 "-display" => $self->{term}->display_id,
1062 "-pe" => "urxvt-popup") 1820 "-pe" => "urxvt-popup")
1063 or die "unable to create popup window\n"; 1821 or die "unable to create popup window\n";
1064} 1822}
1065 1823
1066sub DESTROY { 1824sub DESTROY {
1067 my ($self) = @_; 1825 my ($self) = @_;
1068 1826
1827 delete $self->{term}{_destroy}{$self};
1069 $self->{term}->ungrab; 1828 $self->{term}->ungrab;
1070} 1829}
1830
1831=back
1832
1833=cut
1834
1835package urxvt::watcher;
1836
1837@urxvt::timer::ISA = __PACKAGE__;
1838@urxvt::iow::ISA = __PACKAGE__;
1839@urxvt::pw::ISA = __PACKAGE__;
1840@urxvt::iw::ISA = __PACKAGE__;
1071 1841
1072=head2 The C<urxvt::timer> Class 1842=head2 The C<urxvt::timer> Class
1073 1843
1074This class implements timer watchers/events. Time is represented as a 1844This class implements timer watchers/events. Time is represented as a
1075fractional number of seconds since the epoch. Example: 1845fractional number of seconds since the epoch. Example:
1114 1884
1115=item $timer = $timer->start ($tstamp) 1885=item $timer = $timer->start ($tstamp)
1116 1886
1117Set the event trigger time to C<$tstamp> and start the timer. 1887Set the event trigger time to C<$tstamp> and start the timer.
1118 1888
1889=item $timer = $timer->after ($delay)
1890
1891Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1892
1119=item $timer = $timer->stop 1893=item $timer = $timer->stop
1120 1894
1121Stop the timer. 1895Stop the timer.
1122 1896
1123=back 1897=back
1128 1902
1129 $term->{socket} = ... 1903 $term->{socket} = ...
1130 $term->{iow} = urxvt::iow 1904 $term->{iow} = urxvt::iow
1131 ->new 1905 ->new
1132 ->fd (fileno $term->{socket}) 1906 ->fd (fileno $term->{socket})
1133 ->events (1) # wait for read data 1907 ->events (urxvt::EVENT_READ)
1134 ->start 1908 ->start
1135 ->cb (sub { 1909 ->cb (sub {
1136 my ($iow, $revents) = @_; 1910 my ($iow, $revents) = @_;
1137 # $revents must be 1 here, no need to check 1911 # $revents must be 1 here, no need to check
1138 sysread $term->{socket}, my $buf, 8192 1912 sysread $term->{socket}, my $buf, 8192
1155 1929
1156Set the filedescriptor (not handle) to watch. 1930Set the filedescriptor (not handle) to watch.
1157 1931
1158=item $iow = $iow->events ($eventmask) 1932=item $iow = $iow->events ($eventmask)
1159 1933
1160Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1934Set the event mask to watch. The only allowed values are
1161data, Bit #1 (value C<2>) enables watching for write data. 1935C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1936together, or C<urxvt::EVENT_NONE>.
1162 1937
1163=item $iow = $iow->start 1938=item $iow = $iow->start
1164 1939
1165Start watching for requested events on the given handle. 1940Start watching for requested events on the given handle.
1166 1941
1167=item $iow = $iow->stop 1942=item $iow = $iow->stop
1168 1943
1169Stop watching for events on the given filehandle. 1944Stop watching for events on the given filehandle.
1945
1946=back
1947
1948=head2 The C<urxvt::iw> Class
1949
1950This class implements idle watchers, that get called automatically when
1951the process is idle. They should return as fast as possible, after doing
1952some useful work.
1953
1954=over 4
1955
1956=item $iw = new urxvt::iw
1957
1958Create a new idle watcher object in stopped state.
1959
1960=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1961
1962Set the callback to be called when the watcher triggers.
1963
1964=item $timer = $timer->start
1965
1966Start the watcher.
1967
1968=item $timer = $timer->stop
1969
1970Stop the watcher.
1971
1972=back
1973
1974=head2 The C<urxvt::pw> Class
1975
1976This class implements process watchers. They create an event whenever a
1977process exits, after which they stop automatically.
1978
1979 my $pid = fork;
1980 ...
1981 $term->{pw} = urxvt::pw
1982 ->new
1983 ->start ($pid)
1984 ->cb (sub {
1985 my ($pw, $exit_status) = @_;
1986 ...
1987 });
1988
1989=over 4
1990
1991=item $pw = new urxvt::pw
1992
1993Create a new process watcher in stopped state.
1994
1995=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1996
1997Set the callback to be called when the timer triggers.
1998
1999=item $pw = $timer->start ($pid)
2000
2001Tells the wqtcher to start watching for process C<$pid>.
2002
2003=item $pw = $pw->stop
2004
2005Stop the watcher.
1170 2006
1171=back 2007=back
1172 2008
1173=head1 ENVIRONMENT 2009=head1 ENVIRONMENT
1174 2010
1177This variable controls the verbosity level of the perl extension. Higher 2013This variable controls the verbosity level of the perl extension. Higher
1178numbers indicate more verbose output. 2014numbers indicate more verbose output.
1179 2015
1180=over 4 2016=over 4
1181 2017
1182=item =0 - only fatal messages 2018=item == 0 - fatal messages
1183 2019
1184=item =3 - script loading and management 2020=item >= 3 - script loading and management
1185 2021
1186=item =10 - all events received 2022=item >=10 - all called hooks
2023
2024=item >=11 - hook reutrn values
1187 2025
1188=back 2026=back
1189 2027
1190=head1 AUTHOR 2028=head1 AUTHOR
1191 2029

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