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Revision 1.60 by root, Mon Jan 9 01:21:43 2006 UTC vs.
Revision 1.134 by root, Sat Feb 11 02:31:13 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
61=item option-popup (enabled by default) 94=item option-popup (enabled by default)
62 95
63Binds a popup menu to Ctrl-Button2 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
99Other extensions can extend this popup menu by pushing a code reference
100onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
101popup is being displayed.
102
103It's sole argument is the popup menu, which can be modified. It should
104either return nothing or a string, the initial boolean value and a code
105reference. The string will be used as button text and the code reference
106will be called when the toggle changes, with the new boolean value as
107first argument.
108
109The following will add an entry C<myoption> that changes
110C<$self->{myoption}>:
111
112 push @{ $self->{term}{option_popup_hook} }, sub {
113 ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
114 };
115
66=item selection-popup (enabled by default) 116=item selection-popup (enabled by default)
67 117
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection 118Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action. 119text into various other formats/action (such as uri unescaping, perl
120evaluation, web-browser starting etc.), depending on content.
70 121
71=item digital-clock 122Other extensions can extend this popup menu by pushing a code reference
123onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
124popup is being displayed.
72 125
73Displays a digital clock using the built-in overlay. 126It's sole argument is the popup menu, which can be modified. The selection
127is in C<$_>, which can be used to decide wether to add something or not.
128It should either return nothing or a string and a code reference. The
129string will be used as button text and the code reference will be called
130when the button gets activated and should transform C<$_>.
131
132The following will add an entry C<a to b> that transforms all C<a>s in
133the selection to C<b>s, but only if the selection currently contains any
134C<a>s:
135
136 push @{ $self->{term}{selection_popup_hook} }, sub {
137 /a/ ? ("a to be" => sub { s/a/b/g }
138 : ()
139 };
140
141=item searchable-scrollback<hotkey> (enabled by default)
142
143Adds regex search functionality to the scrollback buffer, triggered
144by a hotkey (default: C<M-s>). While in search mode, normal terminal
145input/output is suspended and a regex is displayed at the bottom of the
146screen.
147
148Inputting characters appends them to the regex and continues incremental
149search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
150search upwards/downwards in the scrollback buffer, C<End> jumps to the
151bottom. C<Escape> leaves search mode and returns to the point where search
152was started, while C<Enter> or C<Return> stay at the current position and
153additionally stores the first match in the current line into the primary
154selection.
155
156=item readline (enabled by default)
157
158A support package that tries to make editing with readline easier. At the
159moment, it reacts to clicking with the left mouse button by trying to
160move the text cursor to this position. It does so by generating as many
161cursor-left or cursor-right keypresses as required (the this only works
162for programs that correctly support wide characters).
163
164To avoid too many false positives, this is only done when:
165
166=over 4
167
168=item - the tty is in ICANON state.
169
170=item - the text cursor is visible.
171
172=item - the primary screen is currently being displayed.
173
174=item - the mouse is on the same (multi-row-) line as the text cursor.
175
176=back
177
178The normal selection mechanism isn't disabled, so quick successive clicks
179might interfere with selection creation in harmless ways.
180
181=item selection-autotransform
182
183This selection allows you to do automatic transforms on a selection
184whenever a selection is made.
185
186It works by specifying perl snippets (most useful is a single C<s///>
187operator) that modify C<$_> as resources:
188
189 URxvt.selection-autotransform.0: transform
190 URxvt.selection-autotransform.1: transform
191 ...
192
193For example, the following will transform selections of the form
194C<filename:number>, often seen in compiler messages, into C<vi +$filename
195$word>:
196
197 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
198
199And this example matches the same,but replaces it with vi-commands you can
200paste directly into your (vi :) editor:
201
202 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
203
204Of course, this can be modified to suit your needs and your editor :)
205
206To expand the example above to typical perl error messages ("XXX at
207FILENAME line YYY."), you need a slightly more elaborate solution:
208
209 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
210 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
211
212The first line tells the selection code to treat the unchanging part of
213every error message as a selection pattern, and the second line transforms
214the message into vi commands to load the file.
215
216=item tabbed
217
218This transforms the terminal into a tabbar with additional terminals, that
219is, it implements what is commonly refered to as "tabbed terminal". The topmost line
220displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
221button per tab.
222
223Clicking a button will activate that tab. Pressing B<Shift-Left> and
224B<Shift-Right> will switch to the tab left or right of the current one,
225while B<Shift-Down> creates a new tab.
226
227The tabbar itself can be configured similarly to a normal terminal, but
228with a resource class of C<URxvt.tabbed>. In addition, it supports the
229following four resources (shown with defaults):
230
231 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
232 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
233 URxvt.tabbed.tab-fg: <colour-index, default 0>
234 URxvt.tabbed.tab-bg: <colour-index, default 1>
235
236See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
237indices.
74 238
75=item mark-urls 239=item mark-urls
76 240
77Uses 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
78 265
79=item block-graphics-to-ascii 266=item block-graphics-to-ascii
80 267
81A 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,
82by replacing all line-drawing characters (U+2500 .. U+259F) by a 269by replacing all line-drawing characters (U+2500 .. U+259F) by a
83similar-looking ascii character. 270similar-looking ascii character.
84 271
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
85=item example-refresh-hooks 325=item example-refresh-hooks
86 326
87Displays 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
88window. Illustrates overwriting the refresh callbacks to create your own 328window. Illustrates overwriting the refresh callbacks to create your own
89overlays or changes. 329overlays or changes.
90 330
91=back 331=back
332
333=head1 API DOCUMENTATION
92 334
93=head2 General API Considerations 335=head2 General API Considerations
94 336
95All objects (such as terminals, time watchers etc.) are typical 337All objects (such as terminals, time watchers etc.) are typical
96reference-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
109=over 4 351=over 4
110 352
111=item $text 353=item $text
112 354
113Rxvt-unicodes special way of encoding text, where one "unicode" character 355Rxvt-unicodes special way of encoding text, where one "unicode" character
114always 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.
115 357
116=item $string 358=item $string
117 359
118A perl text string, with an emphasis on I<text>. It can store all unicode 360A perl text string, with an emphasis on I<text>. It can store all unicode
119characters and is to be distinguished with text encoded in a specific 361characters and is to be distinguished with text encoded in a specific
124Either binary data or - more common - a text string encoded in a 366Either binary data or - more common - a text string encoded in a
125locale-specific way. 367locale-specific way.
126 368
127=back 369=back
128 370
371=head2 Extension Objects
372
373Very perl extension is a perl class. A separate perl object is created
374for each terminal and each extension and passed as the first parameter to
375hooks. So extensions can use their C<$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
129=head2 Hooks 404=head2 Hooks
130 405
131The following subroutines can be declared in extension files, and will be 406The following subroutines can be declared in extension files, and will be
132called whenever the relevant event happens. 407called whenever the relevant event happens.
133 408
134The 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
135and extension package. You can call all C<urxvt::term> methods on it, but 410the in the C<Extension Objects> section.
136its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
137object that is shared between all packages is stored in the C<term>
138member. It is, however, blessed intot he package of the extension script,
139so for all practical purposes you can treat an extension script as a class.
140 411
141All 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
142counts 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
143and the relevant action might not be carried out by the C++ code. 414relevant action might not be carried out by the C++ code.
144 415
145When in doubt, return a false value (preferably C<()>). 416I<< When in doubt, return a false value (preferably C<()>). >>
146 417
147=over 4 418=over 4
148 419
149=item on_init $term 420=item on_init $term
150 421
151Called after a new terminal object has been initialized, but before 422Called after a new terminal object has been initialized, but before
152windows 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
153call or deliver senseless data, as terminal size and other characteristics 424call or deliver senseless data, as terminal size and other characteristics
154have not yet been determined. You can safely query and change resources, 425have not yet been determined. You can safely query and change resources
155though. 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).
156 438
157=item on_reset $term 439=item on_reset $term
158 440
159Called 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
160control 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
161variables. 443variables.
162 444
163=item on_start $term 445=item on_child_start $term, $pid
164 446
165Called at the very end of initialisation of a new terminal, just before 447Called just after the child process has been C<fork>ed.
166returning 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>.
167 453
168=item on_sel_make $term, $eventtime 454=item on_sel_make $term, $eventtime
169 455
170Called 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
171selection 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
185=item on_sel_extend $term 471=item on_sel_extend $term
186 472
187Called 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
188click) and is either supposed to return false (normal operation), or 474click) and is either supposed to return false (normal operation), or
189should 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
190processing. 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.
191 479
192See the F<selection> example extension. 480See the F<selection> example extension.
193 481
194=item on_view_change $term, $offset 482=item on_view_change $term, $offset
195 483
204than the scroll back buffer or the terminal. 492than the scroll back buffer or the terminal.
205 493
206It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 494It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 495$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208number of lines that will be in the scrollback buffer. 496number of lines that will be in the scrollback buffer.
209
210=item on_tty_activity $term *NYI*
211
212Called whenever the program(s) running in the urxvt window send output.
213 497
214=item on_osc_seq $term, $string 498=item on_osc_seq $term, $string
215 499
216Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 500Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217operating system command) is processed. Cursor position and other state 501operating system command) is processed. Cursor position and other state
230can filter/change and output the text yourself by returning a true value 514can filter/change and output the text yourself by returning a true value
231and calling C<< $term->scr_add_lines >> yourself. Please note that this 515and calling C<< $term->scr_add_lines >> yourself. Please note that this
232might be very slow, however, as your hook is called for B<all> text being 516might be very slow, however, as your hook is called for B<all> text being
233output. 517output.
234 518
519=item on_tt_write $term, $octets
520
521Called whenever some data is written to the tty/pty and can be used to
522suppress or filter tty input.
523
235=item on_line_update $term, $row 524=item on_line_update $term, $row
236 525
237Called whenever a line was updated or changed. Can be used to filter 526Called whenever a line was updated or changed. Can be used to filter
238screen output (e.g. underline urls or other useless stuff). Only lines 527screen output (e.g. underline urls or other useless stuff). Only lines
239that are being shown will be filtered, and, due to performance reasons, 528that are being shown will be filtered, and, due to performance reasons,
255 544
256=item on_refresh_end $term 545=item on_refresh_end $term
257 546
258Called just after the screen gets redrawn. See C<on_refresh_begin>. 547Called just after the screen gets redrawn. See C<on_refresh_begin>.
259 548
260=item on_keyboard_command $term, $string 549=item on_user_command $term, $string
261 550
262Called whenever the user presses a key combination that has a 551Called whenever the a user-configured event is being activated (e.g. via
263C<perl:string> action bound to it (see description of the B<keysym> 552a C<perl:string> action bound to a key, see description of the B<keysym>
264resource in the @@RXVT_NAME@@(1) manpage). 553resource in the @@RXVT_NAME@@(1) manpage).
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.
265 569
266=item on_focus_in $term 570=item on_focus_in $term
267 571
268Called whenever the window gets the keyboard focus, before rxvt-unicode 572Called whenever the window gets the keyboard focus, before rxvt-unicode
269does focus in processing. 573does focus in processing.
271=item on_focus_out $term 575=item on_focus_out $term
272 576
273Called wheneever the window loses keyboard focus, before rxvt-unicode does 577Called wheneever the window loses keyboard focus, before rxvt-unicode does
274focus out processing. 578focus out processing.
275 579
580=item on_configure_notify $term, $event
581
582=item on_property_notify $term, $event
583
276=item on_key_press $term, $event, $octets 584=item on_key_press $term, $event, $keysym, $octets
277 585
278=item on_key_release $term, $event 586=item on_key_release $term, $event, $keysym
279 587
280=item on_button_press $term, $event 588=item on_button_press $term, $event
281 589
282=item on_button_release $term, $event 590=item on_button_release $term, $event
283 591
289 597
290Called whenever the corresponding X event is received for the terminal If 598Called whenever the corresponding X event is received for the terminal If
291the 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.
292 600
293The 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
294manpage), 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
295and column under the mouse cursor. 603(real, not screen-based) row and column under the mouse cursor.
296 604
297C<on_key_press> additionally receives the string rxvt-unicode would 605C<on_key_press> additionally receives the string rxvt-unicode would
298output, if any, in locale-specific encoding. 606output, if any, in locale-specific encoding.
299 607
300subwindow. 608subwindow.
301 609
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
302=back 619=back
303 620
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
304=head2 Variables in the C<urxvt> Package 646=head2 Variables in the C<urxvt> Package
305 647
306=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>.
307 662
308=item $urxvt::TERM 663=item $urxvt::TERM
309 664
310The current terminal. This variable stores the current C<urxvt::term> 665The current terminal. This variable stores the current C<urxvt::term>
311object, whenever a callback/hook is executing. 666object, whenever a callback/hook is executing.
312 667
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
313=back 684=back
314 685
315=head2 Functions in the C<urxvt> Package 686=head2 Functions in the C<urxvt> Package
316 687
317=over 4 688=over 4
318
319=item $term = new urxvt [arg...]
320
321Creates a new terminal, very similar as if you had started it with
322C<system $binfile, arg...>. Croaks (and probably outputs an error message)
323if the new instance couldn't be created. Returns C<undef> if the new
324instance didn't initialise perl, and the terminal object otherwise. The
325C<init> and C<start> hooks will be called during the call.
326 689
327=item urxvt::fatal $errormessage 690=item urxvt::fatal $errormessage
328 691
329Fatally aborts execution with the given error message. Avoid at all 692Fatally aborts execution with the given error message. Avoid at all
330costs! The only time this is acceptable is when the terminal process 693costs! The only time this is acceptable is when the terminal process
337that calls this function. 700that calls this function.
338 701
339Using 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
340correct place, e.g. on stderr of the connecting urxvtc client. 703correct place, e.g. on stderr of the connecting urxvtc client.
341 704
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
342=item $time = urxvt::NOW 714=item $time = urxvt::NOW
343 715
344Returns the "current time" (as per the event loop). 716Returns the "current time" (as per the event loop).
345 717
346=item urxvt::CurrentTime 718=item urxvt::CurrentTime
347 719
348=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 720=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
349Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 721Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
350Button4Mask, 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
351 739
352Various constants for use in X calls and event processing. 740Various constants for use in X calls and event processing.
353 741
354=back 742=back
355 743
384 772
385=item $background = urxvt::GET_BASEBG $rend 773=item $background = urxvt::GET_BASEBG $rend
386 774
387Return the foreground/background colour index, respectively. 775Return the foreground/background colour index, respectively.
388 776
389=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 777=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
390 778
391=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
392 782
393Replace the foreground/background colour in the rendition mask with the 783Replace the foreground/background colour in the rendition mask with the
394specified one. 784specified one.
395 785
396=item $value = urxvt::GET_CUSTOM ($rend) 786=item $value = urxvt::GET_CUSTOM $rend
397 787
398Return the "custom" value: Every rendition has 5 bits for use by 788Return the "custom" value: Every rendition has 5 bits for use by
399extensions. 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
400zero. 790zero.
401 791
402=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 792=item $rend = urxvt::SET_CUSTOM $rend, $new_value
403 793
404Change the custom value. 794Change the custom value.
405 795
406=back 796=back
407 797
408=cut 798=cut
409 799
410package urxvt;
411
412use utf8;
413use strict;
414use Scalar::Util ();
415use List::Util ();
416
417our $VERSION = 1;
418our $TERM;
419our @HOOKNAME;
420our %OPTION;
421our $LIBDIR;
422
423BEGIN { 800BEGIN {
424 urxvt->bootstrap;
425
426 # overwrite perl's warn 801 # overwrite perl's warn
427 *CORE::GLOBAL::warn = sub { 802 *CORE::GLOBAL::warn = sub {
428 my $msg = join "", @_; 803 my $msg = join "", @_;
429 $msg .= "\n" 804 $msg .= "\n"
430 unless $msg =~ /\n$/; 805 unless $msg =~ /\n$/;
431 urxvt::warn ($msg); 806 urxvt::warn ($msg);
432 }; 807 };
433
434 delete $ENV{IFS};
435 delete $ENV{CDPATH};
436 delete $ENV{BASH_ENV};
437 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
438} 808}
439 809
440my @hook_count; 810no warnings 'utf8';
811
441my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 812my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
442 813
443sub verbose { 814sub verbose {
444 my ($level, $msg) = @_; 815 my ($level, $msg) = @_;
445 warn "$msg\n" if $level <= $verbosity; 816 warn "$msg\n" if $level <= $verbosity;
446} 817}
447 818
448# find on_xxx subs in the package and register them
449# as hooks
450sub register_package($) {
451 my ($pkg) = @_;
452
453 for my $htype (0.. $#HOOKNAME) {
454 my $name = $HOOKNAME[$htype];
455
456 my $ref = $pkg->can ("on_" . lc $name)
457 or next;
458
459 $TERM->{_hook}[$htype]{$pkg} = $ref;
460 $hook_count[$htype]++
461 or set_should_invoke $htype, 1;
462 }
463}
464
465my $extension_pkg = "extension0000";
466my %extension_pkg; 819my %extension_pkg;
467 820
468# load a single script into its own package, once only 821# load a single script into its own package, once only
469sub extension_package($) { 822sub extension_package($) {
470 my ($path) = @_; 823 my ($path) = @_;
471 824
472 $extension_pkg{$path} ||= do { 825 $extension_pkg{$path} ||= do {
473 my $pkg = "urxvt::" . ($extension_pkg++); 826 $path =~ /([^\/\\]+)$/;
827 my $pkg = $1;
828 $pkg =~ s/[^[:word:]]/_/g;
829 $pkg = "urxvt::ext::$pkg";
474 830
475 verbose 3, "loading extension '$path' into package '$pkg'"; 831 verbose 3, "loading extension '$path' into package '$pkg'";
476 832
477 open my $fh, "<:raw", $path 833 open my $fh, "<:raw", $path
478 or die "$path: $!"; 834 or die "$path: $!";
479 835
480 my $source = untaint "package $pkg; use strict; use utf8;\n" 836 my $source =
481 . "use base urxvt::term::proxy::;\n" 837 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
482 . "#line 1 \"$path\"\n{\n" 838 . "#line 1 \"$path\"\n{\n"
483 . (do { local $/; <$fh> }) 839 . (do { local $/; <$fh> })
484 . "\n};\n1"; 840 . "\n};\n1";
485 841
842 eval $source
486 eval $source or die "$path: $@"; 843 or die "$path: $@";
487 844
488 $pkg 845 $pkg
489 } 846 }
490} 847}
491 848
497 my $htype = shift; 854 my $htype = shift;
498 855
499 if ($htype == 0) { # INIT 856 if ($htype == 0) { # INIT
500 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 857 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
501 858
502 my %want_ext; 859 my %ext_arg;
503 860
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
504 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 870 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
505 if ($_ eq "default") { 871 if ($_ eq "default") {
506 $want_ext{$_}++ for qw(selection option-popup selection-popup); 872 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
507 } elsif (/^-(.*)$/) { 873 } elsif (/^-(.*)$/) {
508 delete $want_ext{$1}; 874 delete $ext_arg{$1};
875 } elsif (/^([^<]+)<(.*)>$/) {
876 push @{ $ext_arg{$1} }, $2;
509 } else { 877 } else {
510 $want_ext{$_}++; 878 $ext_arg{$_} ||= [];
511 } 879 }
512 } 880 }
513 881
514 for my $ext (keys %want_ext) { 882 for my $ext (sort keys %ext_arg) {
515 my @files = grep -f $_, map "$_/$ext", @dirs; 883 my @files = grep -f $_, map "$_/$ext", @dirs;
516 884
517 if (@files) { 885 if (@files) {
518 register_package extension_package $files[0]; 886 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
519 } else { 887 } else {
520 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";
521 } 889 }
522 } 890 }
523 891
532 if $verbosity >= 10; 900 if $verbosity >= 10;
533 901
534 keys %$cb; 902 keys %$cb;
535 903
536 while (my ($pkg, $cb) = each %$cb) { 904 while (my ($pkg, $cb) = each %$cb) {
537 eval { 905 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
538 $retval = $cb->( 906 $retval ||= $retval_;
539 $TERM->{_pkg}{$pkg} ||= do { 907
540 my $proxy = bless { }, $pkg;
541 Scalar::Util::weaken ($proxy->{term} = $TERM);
542 $proxy
543 },
544 @_,
545 ) and last;
546 };
547 if ($@) { 908 if ($@) {
548 $TERM->ungrab; # better to lose the grab than the session 909 $TERM->ungrab; # better to lose the grab than the session
549 warn $@; 910 warn $@;
550 } 911 }
551 } 912 }
913
914 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
915 if $verbosity >= 11;
552 } 916 }
553 917
554 if ($htype == 1) { # DESTROY 918 if ($htype == 1) { # DESTROY
555 # remove hooks if unused
556 if (my $hook = $TERM->{_hook}) {
557 for my $htype (0..$#$hook) {
558 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
559 or set_should_invoke $htype, 0;
560 }
561 }
562
563 # clear package objects 919 # clear package objects
564 %$_ = () for values %{ $TERM->{_pkg} }; 920 %$_ = () for values %{ $TERM->{_pkg} };
565 921
566 # clear package 922 # clear package
567 %$TERM = (); 923 %$TERM = ();
568 } 924 }
569 925
570 $retval 926 $retval
571} 927}
572 928
573# urxvt::term::proxy 929sub SET_COLOR($$$) {
930 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
931}
574 932
575sub urxvt::term::proxy::AUTOLOAD { 933# urxvt::term::extension
576 $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 =~ /:([^:]+)$/
577 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 971 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
578 972
579 eval qq{ 973 eval qq{
580 sub $urxvt::term::proxy::AUTOLOAD { 974 sub $AUTOLOAD {
581 my \$proxy = shift; 975 my \$proxy = shift;
582 \$proxy->{term}->$1 (\@_) 976 \$proxy->{term}->$1 (\@_)
583 } 977 }
584 1 978 1
585 } or die "FATAL: unable to compile method forwarder: $@"; 979 } or die "FATAL: unable to compile method forwarder: $@";
586 980
587 goto &$urxvt::term::proxy::AUTOLOAD; 981 goto &$AUTOLOAD;
588} 982}
589 983
590sub urxvt::term::proxy::DESTROY { 984sub DESTROY {
591 # nop 985 # nop
592} 986}
593 987
594# urxvt::destroy_hook 988# urxvt::destroy_hook
595 989
605 999
606=head2 The C<urxvt::anyevent> Class 1000=head2 The C<urxvt::anyevent> Class
607 1001
608The sole purpose of this class is to deliver an interface to the 1002The sole purpose of this class is to deliver an interface to the
609C<AnyEvent> module - any module using it will work inside urxvt without 1003C<AnyEvent> module - any module using it will work inside urxvt without
610further work. The only exception is that you cannot wait on condition 1004further programming. The only exception is that you cannot wait on
611variables, but non-blocking condvar use is ok. What this means is that you 1005condition variables, but non-blocking condvar use is ok. What this means
612cannot use blocking APIs, but the non-blocking variant should work. 1006is that you cannot use blocking APIs, but the non-blocking variant should
1007work.
613 1008
614=cut 1009=cut
615 1010
616our $VERSION = 1; 1011our $VERSION = 1;
617 1012
662 ${$_[0]}++; 1057 ${$_[0]}++;
663} 1058}
664 1059
665sub urxvt::anyevent::condvar::wait { 1060sub urxvt::anyevent::condvar::wait {
666 unless (${$_[0]}) { 1061 unless (${$_[0]}) {
667 require Carp;
668 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";
669 } 1063 }
670} 1064}
671 1065
672package urxvt::term; 1066package urxvt::term;
673 1067
674=head2 The C<urxvt::term> Class 1068=head2 The C<urxvt::term> Class
675 1069
676=over 4 1070=over 4
677 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
678=item $term->destroy 1123=item $term->destroy
679 1124
680Destroy 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}
681 1153
682=item $isset = $term->option ($optval[, $set]) 1154=item $isset = $term->option ($optval[, $set])
683 1155
684Returns true if the option specified by C<$optval> is enabled, and 1156Returns true if the option specified by C<$optval> is enabled, and
685optionally 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
688Here 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
689source file F</src/optinc.h> to see the actual list: 1161source file F</src/optinc.h> to see the actual list:
690 1162
691 borderLess console cursorBlink cursorUnderline hold iconic insecure 1163 borderLess console cursorBlink cursorUnderline hold iconic insecure
692 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1164 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
693 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1165 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
694 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1166 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
695 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1167 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
696 tripleclickwords utmpInhibit visualBell 1168 transparent tripleclickwords utmpInhibit visualBell
697 1169
698=item $value = $term->resource ($name[, $newval]) 1170=item $value = $term->resource ($name[, $newval])
699 1171
700Returns the current resource value associated with a given name and 1172Returns the current resource value associated with a given name and
701optionally 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>
718 1190
719 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1191 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
720 borderLess color cursorBlink cursorUnderline cutchars delete_key 1192 borderLess color cursorBlink cursorUnderline cutchars delete_key
721 display_name embed ext_bwidth fade font geometry hold iconName 1193 display_name embed ext_bwidth fade font geometry hold iconName
722 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1194 imFont imLocale inputMethod insecure int_bwidth intensityStyles
723 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1195 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
724 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1196 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
725 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1197 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
726 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1198 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
727 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1199 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
728 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1200 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
729 shade term_name title transparent transparent_all tripleclickwords 1201 secondaryScreen secondaryScroll selectstyle shade term_name title
730 utmpInhibit visualBell 1202 transient_for transparent transparent_all tripleclickwords utmpInhibit
1203 visualBell
731 1204
732=cut 1205=cut
733 1206
734sub resource($$;$) { 1207sub resource($$;$) {
735 my ($self, $name) = (shift, shift); 1208 my ($self, $name) = (shift, shift);
736 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1209 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
737 &urxvt::term::_resource 1210 &urxvt::term::_resource
738} 1211}
739 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
740=item $rend = $term->rstyle ([$new_rstyle]) 1229=item $rend = $term->rstyle ([$new_rstyle])
741 1230
742Return and optionally change the current rendition. Text that is output by 1231Return and optionally change the current rendition. Text that is output by
743the terminal application will use this style. 1232the terminal application will use this style.
744 1233
754=item ($row, $col) = $term->selection_end ([$row, $col]) 1243=item ($row, $col) = $term->selection_end ([$row, $col])
755 1244
756Return the current values of the selection mark, begin or end positions, 1245Return the current values of the selection mark, begin or end positions,
757and optionally set them to new values. 1246and optionally set them to new values.
758 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
759=item $success = $term->selection_grab ($eventtime) 1255=item $success = $term->selection_grab ($eventtime)
760 1256
761Try 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
762by 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.
763 1260
764=item $oldtext = $term->selection ([$newtext]) 1261=item $oldtext = $term->selection ([$newtext])
765 1262
766Return the current selection text and optionally replace it by C<$newtext>. 1263Return the current selection text and optionally replace it by C<$newtext>.
767 1264
768#=item $term->overlay ($x, $y, $text) 1265=item $term->overlay_simple ($x, $y, $text)
769# 1266
770#Create a simple multi-line overlay box. See the next method for details. 1267Create a simple multi-line overlay box. See the next method for details.
771# 1268
772#=cut 1269=cut
773# 1270
774#sub urxvt::term::scr_overlay { 1271sub overlay_simple {
775# my ($self, $x, $y, $text) = @_; 1272 my ($self, $x, $y, $text) = @_;
776# 1273
777# my @lines = split /\n/, $text; 1274 my @lines = split /\n/, $text;
778# 1275
779# my $w = 0; 1276 my $w = List::Util::max map $self->strwidth ($_), @lines;
780# for (map $self->strwidth ($_), @lines) { 1277
781# $w = $_ if $w < $_;
782# }
783#
784# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1278 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
785# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1279 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
786#} 1280
1281 $overlay
1282}
787 1283
788=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1284=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
789 1285
790Create a new (empty) overlay at the given position with the given 1286Create a new (empty) overlay at the given position with the given
791width/height. C<$rstyle> defines the initial rendition style 1287width/height. C<$rstyle> defines the initial rendition style
858 1354
859=item $string = $term->locale_decode ($octets) 1355=item $string = $term->locale_decode ($octets)
860 1356
861Convert the given locale-encoded octets into a perl string. 1357Convert the given locale-encoded octets into a perl string.
862 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
863=item $term->scr_add_lines ($string) 1376=item $term->scr_add_lines ($string)
864 1377
865Write 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
866running inside the terminal. It may not contain command sequences (escape 1379running inside the terminal. It may not contain command sequences (escape
867codes), 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
869 1382
870Normally 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
871confused by changes in cursor position or scrolling. Its useful inside a 1384confused by changes in cursor position or scrolling. Its useful inside a
872C<on_add_lines> hook, though. 1385C<on_add_lines> hook, though.
873 1386
1387=item $term->scr_change_screen ($screen)
1388
1389Switch to given screen - 0 primary, 1 secondary.
1390
874=item $term->cmd_parse ($octets) 1391=item $term->cmd_parse ($octets)
875 1392
876Similar 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
877locale-specific encoding of the terminal and can contain command sequences 1394locale-specific encoding of the terminal and can contain command sequences
878(escape codes) that will be interpreted. 1395(escape codes) that will be interpreted.
881 1398
882Write 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
883pass characters instead of octets, you should convert your strings first 1400pass characters instead of octets, you should convert your strings first
884to the locale-specific encoding using C<< $term->locale_encode >>. 1401to the locale-specific encoding using C<< $term->locale_encode >>.
885 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
886=item $windowid = $term->parent 1415=item $windowid = $term->parent
887 1416
888Return the window id of the toplevel window. 1417Return the window id of the toplevel window.
889 1418
890=item $windowid = $term->vt 1419=item $windowid = $term->vt
891 1420
892Return the window id of the terminal window. 1421Return the window id of the terminal window.
893 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
894=item $window_width = $term->width 1440=item $window_width = $term->width
895 1441
896=item $window_height = $term->height 1442=item $window_height = $term->height
897 1443
898=item $font_width = $term->fwidth 1444=item $font_width = $term->fwidth
911 1457
912=item $max_scrollback = $term->saveLines 1458=item $max_scrollback = $term->saveLines
913 1459
914=item $nrow_plus_saveLines = $term->total_rows 1460=item $nrow_plus_saveLines = $term->total_rows
915 1461
916=item $lines_in_scrollback = $term->nsaved 1462=item $topmost_scrollback_row = $term->top_row
917 1463
918Return 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=cut
1480
1481sub env {
1482 if (my $env = $_[0]->_env) {
1483 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1484 } else {
1485 +{ %ENV }
1486 }
1487}
919 1488
920=item $modifiermask = $term->ModLevel3Mask 1489=item $modifiermask = $term->ModLevel3Mask
921 1490
922=item $modifiermask = $term->ModMetaMask 1491=item $modifiermask = $term->ModMetaMask
923 1492
924=item $modifiermask = $term->ModNumLockMask 1493=item $modifiermask = $term->ModNumLockMask
925 1494
926Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1495Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
927AltGr), the meta key (often Alt) and the num lock key, if applicable. 1496AltGr), the meta key (often Alt) and the num lock key, if applicable.
928 1497
1498=item $screen = $term->current_screen
1499
1500Returns the currently displayed screen (0 primary, 1 secondary).
1501
1502=item $cursor_is_hidden = $term->hidden_cursor
1503
1504Returns wether the cursor is currently hidden or not.
1505
929=item $view_start = $term->view_start ([$newvalue]) 1506=item $view_start = $term->view_start ([$newvalue])
930 1507
931Returns the negative row number of the topmost line. Minimum value is 1508Returns the row number of the topmost displayed line. Maximum value is
932C<0>, which displays the normal terminal contents. Larger values scroll 1509C<0>, which displays the normal terminal contents. Lower values scroll
933this many lines into the scrollback buffer. 1510this many lines into the scrollback buffer.
934 1511
935=item $term->want_refresh 1512=item $term->want_refresh
936 1513
937Requests a screen refresh. At the next opportunity, rxvt-unicode will 1514Requests a screen refresh. At the next opportunity, rxvt-unicode will
952line, starting at column C<$start_col> (default C<0>), which is useful 1529line, starting at column C<$start_col> (default C<0>), which is useful
953to replace only parts of a line. The font index in the rendition will 1530to replace only parts of a line. The font index in the rendition will
954automatically be updated. 1531automatically be updated.
955 1532
956C<$text> is in a special encoding: tabs and wide characters that use more 1533C<$text> is in a special encoding: tabs and wide characters that use more
957than one cell when displayed are padded with urxvt::NOCHAR characters 1534than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
958(C<chr 65535>). Characters with combining characters and other characters 1535characters. Characters with combining characters and other characters that
959that do not fit into the normal tetx encoding will be replaced with 1536do not fit into the normal tetx encoding will be replaced with characters
960characters in the private use area. 1537in the private use area.
961 1538
962You have to obey this encoding when changing text. The advantage is 1539You have to obey this encoding when changing text. The advantage is
963that C<substr> and similar functions work on screen cells and not on 1540that C<substr> and similar functions work on screen cells and not on
964characters. 1541characters.
965 1542
1016Return the row number of the first/last row of the line, respectively. 1593Return the row number of the first/last row of the line, respectively.
1017 1594
1018=item $offset = $line->offset_of ($row, $col) 1595=item $offset = $line->offset_of ($row, $col)
1019 1596
1020Returns the character offset of the given row|col pair within the logical 1597Returns the character offset of the given row|col pair within the logical
1021line. 1598line. Works for rows outside the line, too, and returns corresponding
1599offsets outside the string.
1022 1600
1023=item ($row, $col) = $line->coord_of ($offset) 1601=item ($row, $col) = $line->coord_of ($offset)
1024 1602
1025Translates a string offset into terminal coordinates again. 1603Translates a string offset into terminal coordinates again.
1026 1604
1100 $offset / $self->{ncol} + $self->{beg}, 1678 $offset / $self->{ncol} + $self->{beg},
1101 $offset % $self->{ncol} 1679 $offset % $self->{ncol}
1102 ) 1680 )
1103} 1681}
1104 1682
1105=item ($row, $col) = $line->coord_of ($offset)
1106=item $text = $term->special_encode $string 1683=item $text = $term->special_encode $string
1107 1684
1108Converts a perl string into the special encoding used by rxvt-unicode, 1685Converts a perl string into the special encoding used by rxvt-unicode,
1109where one character corresponds to one screen cell. See 1686where one character corresponds to one screen cell. See
1110C<< $term->ROW_t >> for details. 1687C<< $term->ROW_t >> for details.
1112=item $string = $term->special_decode $text 1689=item $string = $term->special_decode $text
1113 1690
1114Converts rxvt-unicodes text reprsentation into a perl string. See 1691Converts rxvt-unicodes text reprsentation into a perl string. See
1115C<< $term->ROW_t >> for details. 1692C<< $term->ROW_t >> for details.
1116 1693
1694=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1695
1696=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1697
1698Register/unregister a synchronous button grab. See the XGrabButton
1699manpage.
1700
1701=item $success = $term->grab ($eventtime[, $sync])
1702
1703Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1704synchronous (C<$sync> is true). Also remembers the grab timestampe.
1705
1706=item $term->allow_events_async
1707
1708Calls XAllowEvents with AsyncBoth for the most recent grab.
1709
1710=item $term->allow_events_sync
1711
1712Calls XAllowEvents with SyncBoth for the most recent grab.
1713
1714=item $term->allow_events_replay
1715
1716Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1717recent grab.
1718
1719=item $term->ungrab
1720
1721Calls XUngrab for the most recent grab. Is called automatically on
1722evaluation errors, as it is better to lose the grab in the error case as
1723the session.
1724
1725=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1726
1727=item $atom_name = $term->XGetAtomName ($atom)
1728
1729=item @atoms = $term->XListProperties ($window)
1730
1731=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1732
1733=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1734
1735=item $term->XDeleteProperty ($window, $property)
1736
1737=item $window = $term->DefaultRootWindow
1738
1739=item $term->XReparentWindow ($window, $parent, [$x, $y])
1740
1741=item $term->XMapWindow ($window)
1742
1743=item $term->XUnmapWindow ($window)
1744
1745=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1746
1747=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1748
1749=item $term->XChangeInput ($window, $add_events[, $del_events])
1750
1751Various X or X-related functions. The C<$term> object only serves as
1752the source of the display, otherwise those functions map more-or-less
1753directory onto the X functions of the same name.
1754
1117=back 1755=back
1118 1756
1119=cut 1757=cut
1120 1758
1121package urxvt::popup; 1759package urxvt::popup;
1136 $item->{render} ||= sub { $_[0]{text} }; 1774 $item->{render} ||= sub { $_[0]{text} };
1137 1775
1138 push @{ $self->{item} }, $item; 1776 push @{ $self->{item} }, $item;
1139} 1777}
1140 1778
1141sub add_separator { 1779=item $popup->add_title ($title)
1142 my ($self, $sep) = @_;
1143 1780
1144 $sep ||= "═"; 1781Adds a non-clickable title to the popup.
1145 1782
1146 $self->add_item ({ 1783=cut
1147 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1148 text => "",
1149 render => sub { $sep x $urxvt::TERM->ncol },
1150 activate => sub { },
1151 });
1152}
1153 1784
1154sub add_title { 1785sub add_title {
1155 my ($self, $title) = @_; 1786 my ($self, $title) = @_;
1156 1787
1157 $self->add_item ({ 1788 $self->add_item ({
1159 text => $title, 1790 text => $title,
1160 activate => sub { }, 1791 activate => sub { },
1161 }); 1792 });
1162} 1793}
1163 1794
1795=item $popup->add_separator ([$sepchr])
1796
1797Creates a separator, optionally using the character given as C<$sepchr>.
1798
1799=cut
1800
1801sub add_separator {
1802 my ($self, $sep) = @_;
1803
1804 $sep ||= "=";
1805
1806 $self->add_item ({
1807 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1808 text => "",
1809 render => sub { $sep x $self->{term}->ncol },
1810 activate => sub { },
1811 });
1812}
1813
1814=item $popup->add_button ($text, $cb)
1815
1816Adds a clickable button to the popup. C<$cb> is called whenever it is
1817selected.
1818
1819=cut
1820
1164sub add_button { 1821sub add_button {
1165 my ($self, $text, $cb) = @_; 1822 my ($self, $text, $cb) = @_;
1166 1823
1167 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1824 $self->add_item ({ type => "button", text => $text, activate => $cb});
1168} 1825}
1826
1827=item $popup->add_toggle ($text, $initial_value, $cb)
1828
1829Adds a toggle/checkbox item to the popup. The callback gets called
1830whenever it gets toggled, with a boolean indicating its new value as its
1831first argument.
1832
1833=cut
1169 1834
1170sub add_toggle { 1835sub add_toggle {
1171 my ($self, $text, $cb, $value) = @_; 1836 my ($self, $text, $value, $cb) = @_;
1172 1837
1173 my $item; $item = { 1838 my $item; $item = {
1174 type => "button", 1839 type => "button",
1175 text => " $text", 1840 text => " $text",
1176 value => $value, 1841 value => $value,
1177 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1842 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1178 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1843 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1179 }; 1844 };
1180 1845
1181 $self->add_item ($item); 1846 $self->add_item ($item);
1182} 1847}
1848
1849=item $popup->show
1850
1851Displays the popup (which is initially hidden).
1852
1853=cut
1183 1854
1184sub show { 1855sub show {
1185 my ($self) = @_; 1856 my ($self) = @_;
1186 1857
1187 local $urxvt::popup::self = $self; 1858 local $urxvt::popup::self = $self;
1188 1859
1189 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1860 my $env = $self->{term}->env;
1861 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1862 delete $env->{LC_ALL};
1863 $env->{LC_CTYPE} = $self->{term}->locale;
1864
1865 urxvt::term->new ($env, "popup",
1866 "--perl-lib" => "", "--perl-ext-common" => "",
1867 "-pty-fd" => -1, "-sl" => 0,
1868 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1190 "--transient-for" => $self->{term}->parent, 1869 "--transient-for" => $self->{term}->parent,
1870 "-display" => $self->{term}->display_id,
1191 "-pe" => "urxvt-popup") 1871 "-pe" => "urxvt-popup")
1192 or die "unable to create popup window\n"; 1872 or die "unable to create popup window\n";
1193} 1873}
1194 1874
1195sub DESTROY { 1875sub DESTROY {
1196 my ($self) = @_; 1876 my ($self) = @_;
1197 1877
1198 delete $self->{term}{_destroy}{$self}; 1878 delete $self->{term}{_destroy}{$self};
1199 $self->{term}->ungrab; 1879 $self->{term}->ungrab;
1200} 1880}
1881
1882=back
1883
1884=cut
1885
1886package urxvt::watcher;
1887
1888@urxvt::timer::ISA = __PACKAGE__;
1889@urxvt::iow::ISA = __PACKAGE__;
1890@urxvt::pw::ISA = __PACKAGE__;
1891@urxvt::iw::ISA = __PACKAGE__;
1201 1892
1202=head2 The C<urxvt::timer> Class 1893=head2 The C<urxvt::timer> Class
1203 1894
1204This class implements timer watchers/events. Time is represented as a 1895This class implements timer watchers/events. Time is represented as a
1205fractional number of seconds since the epoch. Example: 1896fractional number of seconds since the epoch. Example:
1244 1935
1245=item $timer = $timer->start ($tstamp) 1936=item $timer = $timer->start ($tstamp)
1246 1937
1247Set the event trigger time to C<$tstamp> and start the timer. 1938Set the event trigger time to C<$tstamp> and start the timer.
1248 1939
1940=item $timer = $timer->after ($delay)
1941
1942Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1943
1249=item $timer = $timer->stop 1944=item $timer = $timer->stop
1250 1945
1251Stop the timer. 1946Stop the timer.
1252 1947
1253=back 1948=back
1258 1953
1259 $term->{socket} = ... 1954 $term->{socket} = ...
1260 $term->{iow} = urxvt::iow 1955 $term->{iow} = urxvt::iow
1261 ->new 1956 ->new
1262 ->fd (fileno $term->{socket}) 1957 ->fd (fileno $term->{socket})
1263 ->events (1) # wait for read data 1958 ->events (urxvt::EVENT_READ)
1264 ->start 1959 ->start
1265 ->cb (sub { 1960 ->cb (sub {
1266 my ($iow, $revents) = @_; 1961 my ($iow, $revents) = @_;
1267 # $revents must be 1 here, no need to check 1962 # $revents must be 1 here, no need to check
1268 sysread $term->{socket}, my $buf, 8192 1963 sysread $term->{socket}, my $buf, 8192
1285 1980
1286Set the filedescriptor (not handle) to watch. 1981Set the filedescriptor (not handle) to watch.
1287 1982
1288=item $iow = $iow->events ($eventmask) 1983=item $iow = $iow->events ($eventmask)
1289 1984
1290Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1985Set the event mask to watch. The only allowed values are
1291data, Bit #1 (value C<2>) enables watching for write data. 1986C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1987together, or C<urxvt::EVENT_NONE>.
1292 1988
1293=item $iow = $iow->start 1989=item $iow = $iow->start
1294 1990
1295Start watching for requested events on the given handle. 1991Start watching for requested events on the given handle.
1296 1992
1297=item $iow = $iow->stop 1993=item $iow = $iow->stop
1298 1994
1299Stop watching for events on the given filehandle. 1995Stop watching for events on the given filehandle.
1996
1997=back
1998
1999=head2 The C<urxvt::iw> Class
2000
2001This class implements idle watchers, that get called automatically when
2002the process is idle. They should return as fast as possible, after doing
2003some useful work.
2004
2005=over 4
2006
2007=item $iw = new urxvt::iw
2008
2009Create a new idle watcher object in stopped state.
2010
2011=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2012
2013Set the callback to be called when the watcher triggers.
2014
2015=item $timer = $timer->start
2016
2017Start the watcher.
2018
2019=item $timer = $timer->stop
2020
2021Stop the watcher.
2022
2023=back
2024
2025=head2 The C<urxvt::pw> Class
2026
2027This class implements process watchers. They create an event whenever a
2028process exits, after which they stop automatically.
2029
2030 my $pid = fork;
2031 ...
2032 $term->{pw} = urxvt::pw
2033 ->new
2034 ->start ($pid)
2035 ->cb (sub {
2036 my ($pw, $exit_status) = @_;
2037 ...
2038 });
2039
2040=over 4
2041
2042=item $pw = new urxvt::pw
2043
2044Create a new process watcher in stopped state.
2045
2046=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2047
2048Set the callback to be called when the timer triggers.
2049
2050=item $pw = $timer->start ($pid)
2051
2052Tells the wqtcher to start watching for process C<$pid>.
2053
2054=item $pw = $pw->stop
2055
2056Stop the watcher.
1300 2057
1301=back 2058=back
1302 2059
1303=head1 ENVIRONMENT 2060=head1 ENVIRONMENT
1304 2061
1311 2068
1312=item == 0 - fatal messages 2069=item == 0 - fatal messages
1313 2070
1314=item >= 3 - script loading and management 2071=item >= 3 - script loading and management
1315 2072
1316=item >=10 - all events received 2073=item >=10 - all called hooks
2074
2075=item >=11 - hook reutrn values
1317 2076
1318=back 2077=back
1319 2078
1320=head1 AUTHOR 2079=head1 AUTHOR
1321 2080

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