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Revision 1.76 by root, Tue Jan 10 19:46:28 2006 UTC vs.
Revision 1.151 by root, Thu Dec 14 17:22:04 2006 UTC

17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Everytime a terminal object gets created, extension scripts specified via 22Every time a terminal object gets created, extension scripts specified via
23the C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
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
44(More) intelligent selection. This extension tries to be more intelligent 48(More) intelligent selection. This extension tries to be more intelligent
45when the user extends selections (double-click). Right now, it tries to 49when the user extends selections (double-click and further clicks). Right
46select urls and complete shell-quoted arguments, which is very convenient, 50now, it tries to select words, urls and complete shell-quoted
47too, if 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
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 following 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
49It also offers the following bindable keyboard command: 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 (such as uri unescaping, perl 119text into various other formats/action (such as uri unescaping, perl
70evalution, web-browser starting etc.), depending on content. 120evaluation, web-browser starting etc.), depending on content.
121
122Other extensions can extend this popup menu by pushing a code reference
123onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
124popup is being displayed.
125
126It's sole argument is the popup menu, which can be modified. The selection
127is in C<$_>, which can be used to decide whether 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 };
71 140
72=item searchable-scrollback<hotkey> (enabled by default) 141=item searchable-scrollback<hotkey> (enabled by default)
73 142
74Adds regex search functionality to the scrollback buffer, triggered 143Adds regex search functionality to the scrollback buffer, triggered
75by a hotkey (default: C<M-s>). When in search mode, normal terminal 144by a hotkey (default: C<M-s>). While in search mode, normal terminal
76input/output is suspended. 145input/output is suspended and a regex is displayed at the bottom of the
146screen.
77 147
78C</> starts an incremental regex search, C<n> searches further, C<p> or 148Inputting characters appends them to the regex and continues incremental
79C<N> jump to the previous match, C<G> jumps to the bottom and clears the 149search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
80history, C<enter> leaves search mode at the current position and C<escape> 150search upwards/downwards in the scrollback buffer, C<End> jumps to the
81returns to the original position. 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.
82 155
83=item digital-clock 156The regex defaults to "(?i)", resulting in a case-insensitive search. To
157get a case-sensitive search you can delete this prefix using C<BackSpace>
158or simply use an uppercase character which removes the "(?i)" prefix.
84 159
85Displays a digital clock using the built-in overlay. 160See L<perlre> for more info about perl regular expression syntax.
86 161
87=item mark-urls 162=item readline (enabled by default)
88 163
164A support package that tries to make editing with readline easier. At
165the moment, it reacts to clicking shift-left mouse button by trying to
166move the text cursor to this position. It does so by generating as many
167cursor-left or cursor-right keypresses as required (the this only works
168for programs that correctly support wide characters).
169
170To avoid too many false positives, this is only done when:
171
172=over 4
173
174=item - the tty is in ICANON state.
175
176=item - the text cursor is visible.
177
178=item - the primary screen is currently being displayed.
179
180=item - the mouse is on the same (multi-row-) line as the text cursor.
181
182=back
183
184The normal selection mechanism isn't disabled, so quick successive clicks
185might interfere with selection creation in harmless ways.
186
187=item selection-autotransform
188
189This selection allows you to do automatic transforms on a selection
190whenever a selection is made.
191
192It works by specifying perl snippets (most useful is a single C<s///>
193operator) that modify C<$_> as resources:
194
195 URxvt.selection-autotransform.0: transform
196 URxvt.selection-autotransform.1: transform
197 ...
198
199For example, the following will transform selections of the form
200C<filename:number>, often seen in compiler messages, into C<vi +$filename
201$word>:
202
203 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
204
205And this example matches the same,but replaces it with vi-commands you can
206paste directly into your (vi :) editor:
207
208 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
209
210Of course, this can be modified to suit your needs and your editor :)
211
212To expand the example above to typical perl error messages ("XXX at
213FILENAME line YYY."), you need a slightly more elaborate solution:
214
215 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
216 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
217
218The first line tells the selection code to treat the unchanging part of
219every error message as a selection pattern, and the second line transforms
220the message into vi commands to load the file.
221
222=item tabbed
223
224This transforms the terminal into a tabbar with additional terminals, that
225is, it implements what is commonly referred to as "tabbed terminal". The topmost line
226displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
227button per tab.
228
229Clicking a button will activate that tab. Pressing B<Shift-Left> and
230B<Shift-Right> will switch to the tab left or right of the current one,
231while B<Shift-Down> creates a new tab.
232
233The tabbar itself can be configured similarly to a normal terminal, but
234with a resource class of C<URxvt.tabbed>. In addition, it supports the
235following four resources (shown with defaults):
236
237 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
238 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
239 URxvt.tabbed.tab-fg: <colour-index, default 0>
240 URxvt.tabbed.tab-bg: <colour-index, default 1>
241
242See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
243indices.
244
245=item matcher
246
89Uses per-line display filtering (C<on_line_update>) to underline urls. 247Uses per-line display filtering (C<on_line_update>) to underline text
248matching a certain pattern and make it clickable. When clicked with the
249mouse button specified in the C<matcher.button> resource (default 2, or
250middle), the program specified in the C<matcher.launcher> resource
251(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
252with the matched text as first argument. The default configuration is
253suitable for matching URLs and launching a web browser, like the
254former "mark-urls" extension.
255
256The default pattern to match URLs can be overridden with the
257C<matcher.pattern.0> resource, and additional patterns can be specified
258with numbered patterns, in a manner similar to the "selection" extension.
259The launcher can also be overridden on a per-pattern basis.
260
261Example configuration:
262
263 URxvt.perl-ext: default,matcher
264 URxvt.urlLauncher: sensible-browser
265 URxvt.matcher.button: 1
266 URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
267 URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
268 URxvt.matcher.launcher.2: gvim +$2 $1
269
270=item xim-onthespot
271
272This (experimental) perl extension implements OnTheSpot editing. It does
273not work perfectly, and some input methods don't seem to work well with
274OnTheSpot editing in general, but it seems to work at leats for SCIM and
275kinput2.
276
277You enable it by specifying this extension and a preedit style of
278C<OnTheSpot>, i.e.:
279
280 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
281
282=item kuake<hotkey>
283
284A very primitive quake-console-like extension. It was inspired by a
285description of how the programs C<kuake> and C<yakuake> work: Whenever the
286user presses a global accelerator key (by default C<F10>), the terminal
287will show or hide itself. Another press of the accelerator key will hide
288or show it again.
289
290Initially, the window will not be shown when using this extension.
291
292This is useful if you need a single terminal thats not using any desktop
293space most of the time but is quickly available at the press of a key.
294
295The accelerator key is grabbed regardless of any modifiers, so this
296extension will actually grab a physical key just for this function.
297
298If you want a quake-like animation, tell your window manager to do so
299(fvwm can do it).
300
301=item automove-background
302
303This is basically a very small extension that dynamically changes the
304background pixmap offset to the window position, in effect creating the
305same effect as pseudo transparency with a custom pixmap. No scaling is
306supported in this mode. Example:
307
308 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
90 309
91=item block-graphics-to-ascii 310=item block-graphics-to-ascii
92 311
93A not very useful example of filtering all text output to the terminal, 312A not very useful example of filtering all text output to the terminal
94by replacing all line-drawing characters (U+2500 .. U+259F) by a 313by replacing all line-drawing characters (U+2500 .. U+259F) by a
95similar-looking ascii character. 314similar-looking ascii character.
315
316=item digital-clock
317
318Displays a digital clock using the built-in overlay.
319
320=item remote-clipboard
321
322Somewhat of a misnomer, this extension adds two menu entries to the
323selection popup that allows one ti run external commands to store the
324selection somewhere and fetch it again.
325
326We use it to implement a "distributed selection mechanism", which just
327means that one command uploads the file to a remote server, and another
328reads it.
329
330The commands can be set using the C<URxvt.remote-selection.store> and
331C<URxvt.remote-selection.fetch> resources. The first should read the
332selection to store from STDIN (always in UTF-8), the second should provide
333the selection data on STDOUT (also in UTF-8).
334
335The defaults (which are likely useless to you) use rsh and cat:
336
337 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
338 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
339
340=item selection-pastebin
341
342This is a little rarely useful extension that Uploads the selection as
343textfile to a remote site (or does other things). (The implementation is
344not currently secure for use in a multiuser environment as it writes to
345F</tmp> directly.).
346
347It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
348i.e.
349
350 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
351
352Pressing this combination runs a command with C<%> replaced by the name of
353the textfile. This command can be set via a resource:
354
355 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
356
357And the default is likely not useful to anybody but the few people around
358here :)
359
360The name of the textfile is the hex encoded md5 sum of the selection, so
361the same content should lead to the same filename.
362
363After a successful upload the selection will be replaced by the text given
364in the C<selection-pastebin-url> resource (again, the % is the placeholder
365for the filename):
366
367 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
368
369I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
370the double C</> characters as comment start. Use C<\057\057> instead,
371which works regardless of wether xrdb is used to parse the resource file
372or not.
96 373
97=item example-refresh-hooks 374=item example-refresh-hooks
98 375
99Displays a very simple digital clock in the upper right corner of the 376Displays a very simple digital clock in the upper right corner of the
100window. Illustrates overwriting the refresh callbacks to create your own 377window. Illustrates overwriting the refresh callbacks to create your own
123=over 4 400=over 4
124 401
125=item $text 402=item $text
126 403
127Rxvt-unicodes special way of encoding text, where one "unicode" character 404Rxvt-unicodes special way of encoding text, where one "unicode" character
128always represents one screen cell. See L<row_t> for a discussion of this format. 405always represents one screen cell. See L<ROW_t> for a discussion of this format.
129 406
130=item $string 407=item $string
131 408
132A perl text string, with an emphasis on I<text>. It can store all unicode 409A perl text string, with an emphasis on I<text>. It can store all unicode
133characters and is to be distinguished with text encoded in a specific 410characters and is to be distinguished with text encoded in a specific
140 417
141=back 418=back
142 419
143=head2 Extension Objects 420=head2 Extension Objects
144 421
145Very perl extension is a perl class. A separate perl object is created 422Every perl extension is a perl class. A separate perl object is created
146for each terminal and each extension and passed as the first parameter to 423for each terminal, and each terminal has its own set of extenion objects,
147hooks. So extensions can use their C<$self> object without having to think 424which are passed as the first parameter to hooks. So extensions can use
148about other extensions, with the exception of methods and members that 425their C<$self> object without having to think about clashes with other
426extensions or other terminals, with the exception of methods and members
149begin with an underscore character C<_>: these are reserved for internal 427that begin with an underscore character C<_>: these are reserved for
150use. 428internal use.
151 429
152Although it isn't a C<urxvt::term> object, you can call all methods of the 430Although it isn't a C<urxvt::term> object, you can call all methods of the
153C<urxvt::term> class on this object. 431C<urxvt::term> class on this object.
154 432
155It has the following methods and data members: 433It has the following methods and data members:
176=head2 Hooks 454=head2 Hooks
177 455
178The following subroutines can be declared in extension files, and will be 456The following subroutines can be declared in extension files, and will be
179called whenever the relevant event happens. 457called whenever the relevant event happens.
180 458
181The first argument passed to them is an extension oject as described in 459The first argument passed to them is an extension object as described in
182the in the C<Extension Objects> section. 460the in the C<Extension Objects> section.
183 461
184B<All> of these hooks must return a boolean value. If it is true, then the 462B<All> of these hooks must return a boolean value. If any of the called
185event counts as being I<consumed>, and the invocation of other hooks is 463hooks returns true, then the event counts as being I<consumed>, and the
186skipped, and the relevant action might not be carried out by the C++ code. 464relevant action might not be carried out by the C++ code.
187 465
188I<< When in doubt, return a false value (preferably C<()>). >> 466I<< When in doubt, return a false value (preferably C<()>). >>
189 467
190=over 4 468=over 4
191 469
192=item on_init $term 470=item on_init $term
193 471
194Called after a new terminal object has been initialized, but before 472Called after a new terminal object has been initialized, but before
195windows are created or the command gets run. Most methods are unsafe to 473windows are created or the command gets run. Most methods are unsafe to
196call or deliver senseless data, as terminal size and other characteristics 474call or deliver senseless data, as terminal size and other characteristics
197have not yet been determined. You can safely query and change resources, 475have not yet been determined. You can safely query and change resources
198though. 476and options, though. For many purposes the C<on_start> hook is a better
477place.
478
479=item on_start $term
480
481Called at the very end of initialisation of a new terminal, just before
482trying to map (display) the toplevel and returning to the main loop.
483
484=item on_destroy $term
485
486Called whenever something tries to destroy terminal, when the terminal is
487still fully functional (not for long, though).
199 488
200=item on_reset $term 489=item on_reset $term
201 490
202Called after the screen is "reset" for any reason, such as resizing or 491Called after the screen is "reset" for any reason, such as resizing or
203control sequences. Here is where you can react on changes to size-related 492control sequences. Here is where you can react on changes to size-related
204variables. 493variables.
205 494
206=item on_start $term 495=item on_child_start $term, $pid
207 496
208Called at the very end of initialisation of a new terminal, just before 497Called just after the child process has been C<fork>ed.
209returning to the mainloop. 498
499=item on_child_exit $term, $status
500
501Called just after the child process has exited. C<$status> is the status
502from C<waitpid>.
210 503
211=item on_sel_make $term, $eventtime 504=item on_sel_make $term, $eventtime
212 505
213Called whenever a selection has been made by the user, but before the 506Called whenever a selection has been made by the user, but before the
214selection text is copied, so changes to the beginning, end or type of the 507selection text is copied, so changes to the beginning, end or type of the
221 514
222Called whenever a selection has been copied, but before the selection is 515Called whenever a selection has been copied, but before the selection is
223requested from the server. The selection text can be queried and changed 516requested from the server. The selection text can be queried and changed
224by calling C<< $term->selection >>. 517by calling C<< $term->selection >>.
225 518
226Returning a true value aborts selection grabbing. It will still be hilighted. 519Returning a true value aborts selection grabbing. It will still be highlighted.
227 520
228=item on_sel_extend $term 521=item on_sel_extend $term
229 522
230Called whenever the user tries to extend the selection (e.g. with a double 523Called whenever the user tries to extend the selection (e.g. with a double
231click) and is either supposed to return false (normal operation), or 524click) and is either supposed to return false (normal operation), or
232should extend the selection itelf and return true to suppress the built-in 525should extend the selection itself and return true to suppress the built-in
233processing. 526processing. This can happen multiple times, as long as the callback
527returns true, it will be called on every further click by the user and is
528supposed to enlarge the selection more and more, if possible.
234 529
235See the F<selection> example extension. 530See the F<selection> example extension.
236 531
237=item on_view_change $term, $offset 532=item on_view_change $term, $offset
238 533
239Called whenever the view offset changes, i..e the user or program 534Called whenever the view offset changes, i.e. the user or program
240scrolls. Offset C<0> means display the normal terminal, positive values 535scrolls. Offset C<0> means display the normal terminal, positive values
241show this many lines of scrollback. 536show this many lines of scrollback.
242 537
243=item on_scroll_back $term, $lines, $saved 538=item on_scroll_back $term, $lines, $saved
244 539
248 543
249It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 544It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
250$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 545$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
251number of lines that will be in the scrollback buffer. 546number of lines that will be in the scrollback buffer.
252 547
548=item on_osc_seq $term, $op, $args
549
550Called on every OSC sequence and can be used to suppress it or modify its
551behaviour. The default should be to return an empty list. A true value
552suppresses execution of the request completely. Make sure you don't get
553confused by recursive invocations when you output an osc sequence within
554this callback.
555
556C<on_osc_seq_perl> should be used for new behaviour.
557
253=item on_osc_seq $term, $string 558=item on_osc_seq_perl $term, $string
254 559
255Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 560Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
256operating system command) is processed. Cursor position and other state 561operating system command) is processed. Cursor position and other state
257information is up-to-date when this happens. For interoperability, the 562information is up-to-date when this happens. For interoperability, the
258string should start with the extension name and a colon, to distinguish 563string should start with the extension name and a colon, to distinguish
259it from commands for other extensions, and this might be enforced in the 564it from commands for other extensions, and this might be enforced in the
260future. 565future.
261 566
262Be careful not ever to trust (in a security sense) the data you receive, 567Be careful not ever to trust (in a security sense) the data you receive,
263as its source can not easily be controleld (e-mail content, messages from 568as its source can not easily be controlled (e-mail content, messages from
264other users on the same system etc.). 569other users on the same system etc.).
265 570
266=item on_add_lines $term, $string 571=item on_add_lines $term, $string
267 572
268Called whenever text is about to be output, with the text as argument. You 573Called whenever text is about to be output, with the text as argument. You
299 604
300=item on_refresh_end $term 605=item on_refresh_end $term
301 606
302Called just after the screen gets redrawn. See C<on_refresh_begin>. 607Called just after the screen gets redrawn. See C<on_refresh_begin>.
303 608
304=item on_keyboard_command $term, $string 609=item on_user_command $term, $string
305 610
306Called whenever the user presses a key combination that has a 611Called whenever a user-configured event is being activated (e.g. via
307C<perl:string> action bound to it (see description of the B<keysym> 612a C<perl:string> action bound to a key, see description of the B<keysym>
308resource in the @@RXVT_NAME@@(1) manpage). 613resource in the @@RXVT_NAME@@(1) manpage).
614
615The event is simply the action string. This interface is assumed to change
616slightly in the future.
617
618=item on_resize_all_windows $tern, $new_width, $new_height
619
620Called just after the new window size has been calculated, but before
621windows are actually being resized or hints are being set. If this hook
622returns TRUE, setting of the window hints is being skipped.
623
624=item on_x_event $term, $event
625
626Called on every X event received on the vt window (and possibly other
627windows). Should only be used as a last resort. Most event structure
628members are not passed.
629
630=item on_root_event $term, $event
631
632Like C<on_x_event>, but is called for events on the root window.
309 633
310=item on_focus_in $term 634=item on_focus_in $term
311 635
312Called whenever the window gets the keyboard focus, before rxvt-unicode 636Called whenever the window gets the keyboard focus, before rxvt-unicode
313does focus in processing. 637does focus in processing.
314 638
315=item on_focus_out $term 639=item on_focus_out $term
316 640
317Called wheneever the window loses keyboard focus, before rxvt-unicode does 641Called whenever the window loses keyboard focus, before rxvt-unicode does
318focus out processing. 642focus out processing.
643
644=item on_configure_notify $term, $event
645
646=item on_property_notify $term, $event
319 647
320=item on_key_press $term, $event, $keysym, $octets 648=item on_key_press $term, $event, $keysym, $octets
321 649
322=item on_key_release $term, $event, $keysym 650=item on_key_release $term, $event, $keysym
323 651
333 661
334Called whenever the corresponding X event is received for the terminal If 662Called whenever the corresponding X event is received for the terminal If
335the hook returns true, then the even will be ignored by rxvt-unicode. 663the hook returns true, then the even will be ignored by rxvt-unicode.
336 664
337The event is a hash with most values as named by Xlib (see the XEvent 665The event is a hash with most values as named by Xlib (see the XEvent
338manpage), with the additional members C<row> and C<col>, which are the row 666manpage), with the additional members C<row> and C<col>, which are the
339and column under the mouse cursor. 667(real, not screen-based) row and column under the mouse cursor.
340 668
341C<on_key_press> additionally receives the string rxvt-unicode would 669C<on_key_press> additionally receives the string rxvt-unicode would
342output, if any, in locale-specific encoding. 670output, if any, in locale-specific encoding.
343 671
344subwindow. 672subwindow.
345 673
346=back 674=item on_client_message $term, $event
347 675
348=head2 Variables in the C<urxvt> Package 676=item on_wm_protocols $term, $event
349 677
350=over 4 678=item on_wm_delete_window $term, $event
351 679
352=item $urxvt::LIBDIR 680Called when various types of ClientMessage events are received (all with
353 681format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
354The rxvt-unicode library directory, where, among other things, the perl
355modules and scripts are stored.
356
357=item $urxvt::RESCLASS, $urxvt::RESCLASS
358
359The resource class and name rxvt-unicode uses to look up X resources.
360
361=item $urxvt::RXVTNAME
362
363The basename of the installed binaries, usually C<urxvt>.
364
365=item $urxvt::TERM
366
367The current terminal. This variable stores the current C<urxvt::term>
368object, whenever a callback/hook is executing.
369
370=item
371
372=back
373
374=head2 Functions in the C<urxvt> Package
375
376=over 4
377
378=item $term = new urxvt [arg...]
379
380Creates a new terminal, very similar as if you had started it with
381C<system $binfile, arg...>. Croaks (and probably outputs an error message)
382if the new instance couldn't be created. Returns C<undef> if the new
383instance didn't initialise perl, and the terminal object otherwise. The
384C<init> and C<start> hooks will be called during the call.
385
386=item urxvt::fatal $errormessage
387
388Fatally aborts execution with the given error message. Avoid at all
389costs! The only time this is acceptable is when the terminal process
390starts up.
391
392=item urxvt::warn $string
393
394Calls C<rxvt_warn> with the given string which should not include a
395newline. The module also overwrites the C<warn> builtin with a function
396that calls this function.
397
398Using this function has the advantage that its output ends up in the
399correct place, e.g. on stderr of the connecting urxvtc client.
400
401=item $is_safe = urxvt::safe
402
403Returns true when it is safe to do potentially unsafe things, such as
404evaluating perl code specified by the user. This is true when urxvt was
405started setuid or setgid.
406
407=item $time = urxvt::NOW
408
409Returns the "current time" (as per the event loop).
410
411=item urxvt::CurrentTime
412
413=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
414Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
415Button4Mask, Button5Mask, AnyModifier
416
417Various constants for use in X calls and event processing.
418
419=back
420
421=head2 RENDITION
422
423Rendition bitsets contain information about colour, font, font styles and
424similar information for each screen cell.
425
426The following "macros" deal with changes in rendition sets. You should
427never just create a bitset, you should always modify an existing one,
428as they contain important information required for correct operation of
429rxvt-unicode.
430
431=over 4
432
433=item $rend = urxvt::DEFAULT_RSTYLE
434
435Returns the default rendition, as used when the terminal is starting up or
436being reset. Useful as a base to start when creating renditions.
437
438=item $rend = urxvt::OVERLAY_RSTYLE
439
440Return the rendition mask used for overlays by default.
441
442=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
443
444Return the bit that enabled bold, italic, blink, reverse-video and
445underline, respectively. To enable such a style, just logically OR it into
446the bitset.
447
448=item $foreground = urxvt::GET_BASEFG $rend
449
450=item $background = urxvt::GET_BASEBG $rend
451
452Return the foreground/background colour index, respectively.
453
454=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
455
456=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
457
458Replace the foreground/background colour in the rendition mask with the
459specified one.
460
461=item $value = urxvt::GET_CUSTOM $rend
462
463Return the "custom" value: Every rendition has 5 bits for use by
464extensions. They can be set and changed as you like and are initially
465zero.
466
467=item $rend = urxvt::SET_CUSTOM $rend, $new_value
468
469Change the custom value.
470 682
471=back 683=back
472 684
473=cut 685=cut
474 686
480use Scalar::Util (); 692use Scalar::Util ();
481use List::Util (); 693use List::Util ();
482 694
483our $VERSION = 1; 695our $VERSION = 1;
484our $TERM; 696our $TERM;
697our @TERM_INIT;
698our @TERM_EXT;
485our @HOOKNAME; 699our @HOOKNAME;
486our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 700our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
487our %OPTION; 701our %OPTION;
488 702
489our $LIBDIR; 703our $LIBDIR;
490our $RESNAME; 704our $RESNAME;
491our $RESCLASS; 705our $RESCLASS;
492our $RXVTNAME; 706our $RXVTNAME;
493 707
708our $NOCHAR = chr 0xffff;
709
710=head2 Variables in the C<urxvt> Package
711
712=over 4
713
714=item $urxvt::LIBDIR
715
716The rxvt-unicode library directory, where, among other things, the perl
717modules and scripts are stored.
718
719=item $urxvt::RESCLASS, $urxvt::RESCLASS
720
721The resource class and name rxvt-unicode uses to look up X resources.
722
723=item $urxvt::RXVTNAME
724
725The basename of the installed binaries, usually C<urxvt>.
726
727=item $urxvt::TERM
728
729The current terminal. This variable stores the current C<urxvt::term>
730object, whenever a callback/hook is executing.
731
732=item @urxvt::TERM_INIT
733
734All code references in this array will be called as methods of the next newly
735created C<urxvt::term> object (during the C<on_init> phase). The array
736gets cleared before the code references that were in it are being executed,
737so references can push themselves onto it again if they so desire.
738
739This complements to the perl-eval command line option, but gets executed
740first.
741
742=item @urxvt::TERM_EXT
743
744Works similar to C<@TERM_INIT>, but contains perl package/class names, which
745get registered as normal extensions after calling the hooks in C<@TERM_INIT>
746but before other extensions. Gets cleared just like C<@TERM_INIT>.
747
748=back
749
750=head2 Functions in the C<urxvt> Package
751
752=over 4
753
754=item urxvt::fatal $errormessage
755
756Fatally aborts execution with the given error message. Avoid at all
757costs! The only time this is acceptable is when the terminal process
758starts up.
759
760=item urxvt::warn $string
761
762Calls C<rxvt_warn> with the given string which should not include a
763newline. The module also overwrites the C<warn> builtin with a function
764that calls this function.
765
766Using this function has the advantage that its output ends up in the
767correct place, e.g. on stderr of the connecting urxvtc client.
768
769Messages have a size limit of 1023 bytes currently.
770
771=item @terms = urxvt::termlist
772
773Returns all urxvt::term objects that exist in this process, regardless of
774whether they are started, being destroyed etc., so be careful. Only term
775objects that have perl extensions attached will be returned (because there
776is no urxvt::term objet associated with others).
777
778=item $time = urxvt::NOW
779
780Returns the "current time" (as per the event loop).
781
782=item urxvt::CurrentTime
783
784=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
785Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
786Button4Mask, Button5Mask, AnyModifier
787
788=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
789ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
790PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
791Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
792KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
793ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
794FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
795
796=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
797EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
798GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
799UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
800ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
801CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
802SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
803
804Various constants for use in X calls and event processing.
805
806=back
807
808=head2 RENDITION
809
810Rendition bitsets contain information about colour, font, font styles and
811similar information for each screen cell.
812
813The following "macros" deal with changes in rendition sets. You should
814never just create a bitset, you should always modify an existing one,
815as they contain important information required for correct operation of
816rxvt-unicode.
817
818=over 4
819
820=item $rend = urxvt::DEFAULT_RSTYLE
821
822Returns the default rendition, as used when the terminal is starting up or
823being reset. Useful as a base to start when creating renditions.
824
825=item $rend = urxvt::OVERLAY_RSTYLE
826
827Return the rendition mask used for overlays by default.
828
829=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
830
831Return the bit that enabled bold, italic, blink, reverse-video and
832underline, respectively. To enable such a style, just logically OR it into
833the bitset.
834
835=item $foreground = urxvt::GET_BASEFG $rend
836
837=item $background = urxvt::GET_BASEBG $rend
838
839Return the foreground/background colour index, respectively.
840
841=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
842
843=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
844
845=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
846
847Replace the foreground/background colour in the rendition mask with the
848specified one.
849
850=item $value = urxvt::GET_CUSTOM $rend
851
852Return the "custom" value: Every rendition has 5 bits for use by
853extensions. They can be set and changed as you like and are initially
854zero.
855
856=item $rend = urxvt::SET_CUSTOM $rend, $new_value
857
858Change the custom value.
859
860=back
861
862=cut
863
494BEGIN { 864BEGIN {
495 urxvt->bootstrap;
496
497 # overwrite perl's warn 865 # overwrite perl's warn
498 *CORE::GLOBAL::warn = sub { 866 *CORE::GLOBAL::warn = sub {
499 my $msg = join "", @_; 867 my $msg = join "", @_;
500 $msg .= "\n" 868 $msg .= "\n"
501 unless $msg =~ /\n$/; 869 unless $msg =~ /\n$/;
502 urxvt::warn ($msg); 870 urxvt::warn ($msg);
503 }; 871 };
504
505 delete $ENV{IFS};
506 delete $ENV{CDPATH};
507 delete $ENV{BASH_ENV};
508 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
509} 872}
510 873
511my @hook_count; 874no warnings 'utf8';
875
512my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 876my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
513 877
514sub verbose { 878sub verbose {
515 my ($level, $msg) = @_; 879 my ($level, $msg) = @_;
516 warn "$msg\n" if $level <= $verbosity; 880 warn "$msg\n" if $level <= $verbosity;
517} 881}
518 882
519my $extension_pkg = "extension0000";
520my %extension_pkg; 883my %extension_pkg;
521 884
522# load a single script into its own package, once only 885# load a single script into its own package, once only
523sub extension_package($) { 886sub extension_package($) {
524 my ($path) = @_; 887 my ($path) = @_;
525 888
526 $extension_pkg{$path} ||= do { 889 $extension_pkg{$path} ||= do {
527 my $pkg = "urxvt::" . ($extension_pkg++); 890 $path =~ /([^\/\\]+)$/;
891 my $pkg = $1;
892 $pkg =~ s/[^[:word:]]/_/g;
893 $pkg = "urxvt::ext::$pkg";
528 894
529 verbose 3, "loading extension '$path' into package '$pkg'"; 895 verbose 3, "loading extension '$path' into package '$pkg'";
530 896
531 open my $fh, "<:raw", $path 897 open my $fh, "<:raw", $path
532 or die "$path: $!"; 898 or die "$path: $!";
533 899
534 my $source = untaint 900 my $source =
535 "package $pkg; use strict; use utf8;\n" 901 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
536 . "use base urxvt::term::extension::;\n"
537 . "#line 1 \"$path\"\n{\n" 902 . "#line 1 \"$path\"\n{\n"
538 . (do { local $/; <$fh> }) 903 . (do { local $/; <$fh> })
539 . "\n};\n1"; 904 . "\n};\n1";
540 905
541 eval $source 906 eval $source
555 if ($htype == 0) { # INIT 920 if ($htype == 0) { # INIT
556 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 921 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
557 922
558 my %ext_arg; 923 my %ext_arg;
559 924
925 {
926 my @init = @TERM_INIT;
927 @TERM_INIT = ();
928 $_->($TERM) for @init;
929 my @pkg = @TERM_EXT;
930 @TERM_EXT = ();
931 $TERM->register_package ($_) for @pkg;
932 }
933
560 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 934 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
561 if ($_ eq "default") { 935 if ($_ eq "default") {
562 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 936 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
563 } elsif (/^-(.*)$/) { 937 } elsif (/^-(.*)$/) {
564 delete $ext_arg{$1}; 938 delete $ext_arg{$1};
565 } elsif (/^([^<]+)<(.*)>$/) { 939 } elsif (/^([^<]+)<(.*)>$/) {
566 push @{ $ext_arg{$1} }, $2; 940 push @{ $ext_arg{$1} }, $2;
567 } else { 941 } else {
568 $ext_arg{$_} ||= []; 942 $ext_arg{$_} ||= [];
569 } 943 }
570 } 944 }
571 945
572 while (my ($ext, $argv) = each %ext_arg) { 946 for my $ext (sort keys %ext_arg) {
573 my @files = grep -f $_, map "$_/$ext", @dirs; 947 my @files = grep -f $_, map "$_/$ext", @dirs;
574 948
575 if (@files) { 949 if (@files) {
576 $TERM->register_package (extension_package $files[0], $argv); 950 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
577 } else { 951 } else {
578 warn "perl extension '$ext' not found in perl library search path\n"; 952 warn "perl extension '$ext' not found in perl library search path\n";
579 } 953 }
580 } 954 }
581 955
587 961
588 if (my $cb = $TERM->{_hook}[$htype]) { 962 if (my $cb = $TERM->{_hook}[$htype]) {
589 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 963 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
590 if $verbosity >= 10; 964 if $verbosity >= 10;
591 965
592 keys %$cb; 966 for my $pkg (keys %$cb) {
593
594 while (my ($pkg, $cb) = each %$cb) {
595 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 967 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
596 and last; 968 $retval ||= $retval_;
597 969
598 if ($@) { 970 if ($@) {
599 $TERM->ungrab; # better to lose the grab than the session 971 $TERM->ungrab; # better to lose the grab than the session
600 warn $@; 972 warn $@;
601 } 973 }
602 } 974 }
975
976 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
977 if $verbosity >= 11;
603 } 978 }
604 979
605 if ($htype == 1) { # DESTROY 980 if ($htype == 1) { # DESTROY
606 if (my $hook = delete $TERM->{_hook}) {
607 for my $htype (0..$#$hook) {
608 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
609 or set_should_invoke $htype, 0;
610 }
611 }
612
613 # clear package objects 981 # clear package objects
614 %$_ = () for values %{ $TERM->{_pkg} }; 982 %$_ = () for values %{ $TERM->{_pkg} };
615 983
616 # clear package 984 # clear package
617 %$TERM = (); 985 %$TERM = ();
618 } 986 }
619 987
620 $retval 988 $retval
989}
990
991sub SET_COLOR($$$) {
992 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
621} 993}
622 994
623# urxvt::term::extension 995# urxvt::term::extension
624 996
625package urxvt::term::extension; 997package urxvt::term::extension;
631 while (my ($name, $cb) = each %hook) { 1003 while (my ($name, $cb) = each %hook) {
632 my $htype = $HOOKTYPE{uc $name}; 1004 my $htype = $HOOKTYPE{uc $name};
633 defined $htype 1005 defined $htype
634 or Carp::croak "unsupported hook type '$name'"; 1006 or Carp::croak "unsupported hook type '$name'";
635 1007
1008 $self->set_should_invoke ($htype, +1)
636 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 1009 unless exists $self->{term}{_hook}[$htype]{$pkg};
637 $hook_count[$htype]++
638 or urxvt::set_should_invoke $htype, 1;
639 }
640 1010
641 $self->{term}{_hook}[$htype]{$pkg} = $cb; 1011 $self->{term}{_hook}[$htype]{$pkg} = $cb;
642 } 1012 }
643} 1013}
644 1014
649 for my $name (@hook) { 1019 for my $name (@hook) {
650 my $htype = $HOOKTYPE{uc $name}; 1020 my $htype = $HOOKTYPE{uc $name};
651 defined $htype 1021 defined $htype
652 or Carp::croak "unsupported hook type '$name'"; 1022 or Carp::croak "unsupported hook type '$name'";
653 1023
1024 $self->set_should_invoke ($htype, -1)
654 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 1025 if delete $self->{term}{_hook}[$htype]{$pkg};
655 --$hook_count[$htype]
656 or urxvt::set_should_invoke $htype, 0;
657 }
658 } 1026 }
659} 1027}
660 1028
661our $AUTOLOAD; 1029our $AUTOLOAD;
662 1030
742sub DESTROY { 1110sub DESTROY {
743 $_[0][1]->stop; 1111 $_[0][1]->stop;
744} 1112}
745 1113
746sub condvar { 1114sub condvar {
747 bless \my $flag, urxvt::anyevent::condvar:: 1115 bless \my $flag, urxvt::anyevent::
748} 1116}
749 1117
750sub urxvt::anyevent::condvar::broadcast { 1118sub broadcast {
751 ${$_[0]}++; 1119 ${$_[0]}++;
752} 1120}
753 1121
754sub urxvt::anyevent::condvar::wait { 1122sub wait {
755 unless (${$_[0]}) { 1123 unless (${$_[0]}) {
756 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"; 1124 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
757 } 1125 }
1126}
1127
1128sub one_event {
1129 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
758} 1130}
759 1131
760package urxvt::term; 1132package urxvt::term;
761 1133
762=head2 The C<urxvt::term> Class 1134=head2 The C<urxvt::term> Class
767 1139
768# find on_xxx subs in the package and register them 1140# find on_xxx subs in the package and register them
769# as hooks 1141# as hooks
770sub register_package { 1142sub register_package {
771 my ($self, $pkg, $argv) = @_; 1143 my ($self, $pkg, $argv) = @_;
1144
1145 no strict 'refs';
1146
1147 urxvt::verbose 6, "register package $pkg to $self";
1148
1149 @{"$pkg\::ISA"} = urxvt::term::extension::;
772 1150
773 my $proxy = bless { 1151 my $proxy = bless {
774 _pkg => $pkg, 1152 _pkg => $pkg,
775 argv => $argv, 1153 argv => $argv,
776 }, $pkg; 1154 }, $pkg;
783 $proxy->enable ($name => $ref); 1161 $proxy->enable ($name => $ref);
784 } 1162 }
785 } 1163 }
786} 1164}
787 1165
1166=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1167
1168Creates a new terminal, very similar as if you had started it with system
1169C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1170hash which defines the environment of the new terminal.
1171
1172Croaks (and probably outputs an error message) if the new instance
1173couldn't be created. Returns C<undef> if the new instance didn't
1174initialise perl, and the terminal object otherwise. The C<init> and
1175C<start> hooks will be called before this call returns, and are free to
1176refer to global data (which is race free).
1177
1178=cut
1179
1180sub new {
1181 my ($class, $env, @args) = @_;
1182
1183 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1184 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1185
1186 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1187}
1188
788=item $term->destroy 1189=item $term->destroy
789 1190
790Destroy the terminal object (close the window, free resources 1191Destroy the terminal object (close the window, free resources
791etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1192etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
792watchers (timers, io watchers) are still active. 1193watchers (timers, io watchers) are still active.
793 1194
1195=item $term->exec_async ($cmd[, @args])
1196
1197Works like the combination of the C<fork>/C<exec> builtins, which executes
1198("starts") programs in the background. This function takes care of setting
1199the user environment before exec'ing the command (e.g. C<PATH>) and should
1200be preferred over explicit calls to C<exec> or C<system>.
1201
1202Returns the pid of the subprocess or C<undef> on error.
1203
1204=cut
1205
1206sub exec_async {
1207 my $self = shift;
1208
1209 my $pid = fork;
1210
1211 return $pid
1212 if !defined $pid or $pid;
1213
1214 %ENV = %{ $self->env };
1215
1216 exec @_;
1217 urxvt::_exit 255;
1218}
1219
794=item $isset = $term->option ($optval[, $set]) 1220=item $isset = $term->option ($optval[, $set])
795 1221
796Returns true if the option specified by C<$optval> is enabled, and 1222Returns true if the option specified by C<$optval> is enabled, and
797optionally change it. All option values are stored by name in the hash 1223optionally change it. All option values are stored by name in the hash
798C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1224C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
799 1225
800Here is a a likely non-exhaustive list of option names, please see the 1226Here is a likely non-exhaustive list of option names, please see the
801source file F</src/optinc.h> to see the actual list: 1227source file F</src/optinc.h> to see the actual list:
802 1228
803 borderLess console cursorBlink cursorUnderline hold iconic insecure 1229 borderLess console cursorBlink cursorUnderline hold iconic insecure
804 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1230 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
805 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1231 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
806 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1232 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
807 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1233 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
808 tripleclickwords utmpInhibit visualBell 1234 transparent tripleclickwords utmpInhibit visualBell
809 1235
810=item $value = $term->resource ($name[, $newval]) 1236=item $value = $term->resource ($name[, $newval])
811 1237
812Returns the current resource value associated with a given name and 1238Returns the current resource value associated with a given name and
813optionally sets a new value. Setting values is most useful in the C<init> 1239optionally sets a new value. Setting values is most useful in the C<init>
822likely change). 1248likely change).
823 1249
824Please note that resource strings will currently only be freed when the 1250Please note that resource strings will currently only be freed when the
825terminal is destroyed, so changing options frequently will eat memory. 1251terminal is destroyed, so changing options frequently will eat memory.
826 1252
827Here is a a likely non-exhaustive list of resource names, not all of which 1253Here is a likely non-exhaustive list of resource names, not all of which
828are supported in every build, please see the source file F</src/rsinc.h> 1254are supported in every build, please see the source file F</src/rsinc.h>
829to see the actual list: 1255to see the actual list:
830 1256
831 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1257 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
832 borderLess color cursorBlink cursorUnderline cutchars delete_key 1258 borderLess color cursorBlink cursorUnderline cutchars delete_key
833 display_name embed ext_bwidth fade font geometry hold iconName 1259 display_name embed ext_bwidth fade font geometry hold iconName
834 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1260 imFont imLocale inputMethod insecure int_bwidth intensityStyles
835 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1261 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
836 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1262 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
837 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1263 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
838 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1264 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
839 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1265 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
840 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1266 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
841 shade term_name title transparent transparent_all tripleclickwords 1267 secondaryScreen secondaryScroll selectstyle shade term_name title
842 utmpInhibit visualBell 1268 transient_for transparent transparent_all tripleclickwords utmpInhibit
1269 visualBell
843 1270
844=cut 1271=cut
845 1272
846sub resource($$;$) { 1273sub resource($$;$) {
847 my ($self, $name) = (shift, shift); 1274 my ($self, $name) = (shift, shift);
848 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1275 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
849 &urxvt::term::_resource 1276 &urxvt::term::_resource
850} 1277}
851 1278
1279=item $value = $term->x_resource ($pattern)
1280
1281Returns the X-Resource for the given pattern, excluding the program or
1282class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1283same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1284resource with that pattern exists.
1285
1286This method should only be called during the C<on_start> hook, as there is
1287only one resource database per display, and later invocations might return
1288the wrong resources.
1289
852=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1290=item $success = $term->parse_keysym ($keysym_spec, $command_string)
853 1291
854Adds a keymap translation exactly as specified via a resource. See the 1292Adds a keymap translation exactly as specified via a resource. See the
855C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1293C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
856 1294
871=item ($row, $col) = $term->selection_end ([$row, $col]) 1309=item ($row, $col) = $term->selection_end ([$row, $col])
872 1310
873Return the current values of the selection mark, begin or end positions, 1311Return the current values of the selection mark, begin or end positions,
874and optionally set them to new values. 1312and optionally set them to new values.
875 1313
1314=item $term->selection_make ($eventtime[, $rectangular])
1315
1316Tries to make a selection as set by C<selection_beg> and
1317C<selection_end>. If C<$rectangular> is true (default: false), a
1318rectangular selection will be made. This is the prefered function to make
1319a selection.
1320
876=item $success = $term->selection_grab ($eventtime) 1321=item $success = $term->selection_grab ($eventtime)
877 1322
878Try to request the primary selection from the server (for example, as set 1323Try to request the primary selection text from the server (for example, as
879by the next method). 1324set by the next method). No visual feedback will be given. This function
1325is mostly useful from within C<on_sel_grab> hooks.
880 1326
881=item $oldtext = $term->selection ([$newtext]) 1327=item $oldtext = $term->selection ([$newtext])
882 1328
883Return the current selection text and optionally replace it by C<$newtext>. 1329Return the current selection text and optionally replace it by C<$newtext>.
884 1330
977Convert the given locale-encoded octets into a perl string. 1423Convert the given locale-encoded octets into a perl string.
978 1424
979=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1425=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
980 1426
981XORs the rendition values in the given span with the provided value 1427XORs the rendition values in the given span with the provided value
982(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1428(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
983to the selection. 1429refresh hooks to provide effects similar to the selection.
984 1430
985=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1431=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
986 1432
987Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1433Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
988whitespace will additionally be xored with the C<$rstyle2>, which defaults 1434whitespace will additionally be xored with the C<$rstyle2>, which defaults
989to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1435to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
990it instead. 1436it instead. Both styles I<MUST NOT> contain font styles.
991 1437
992=item $term->scr_bell 1438=item $term->scr_bell
993 1439
994Ring the bell! 1440Ring the bell!
995 1441
1002 1448
1003Normally its not a good idea to use this function, as programs might be 1449Normally its not a good idea to use this function, as programs might be
1004confused by changes in cursor position or scrolling. Its useful inside a 1450confused by changes in cursor position or scrolling. Its useful inside a
1005C<on_add_lines> hook, though. 1451C<on_add_lines> hook, though.
1006 1452
1453=item $term->scr_change_screen ($screen)
1454
1455Switch to given screen - 0 primary, 1 secondary.
1456
1007=item $term->cmd_parse ($octets) 1457=item $term->cmd_parse ($octets)
1008 1458
1009Similar to C<scr_add_lines>, but the argument must be in the 1459Similar to C<scr_add_lines>, but the argument must be in the
1010locale-specific encoding of the terminal and can contain command sequences 1460locale-specific encoding of the terminal and can contain command sequences
1011(escape codes) that will be interpreted. 1461(escape codes) that will be interpreted.
1021Replaces the event mask of the pty watcher by the given event mask. Can 1471Replaces the event mask of the pty watcher by the given event mask. Can
1022be used to suppress input and output handling to the pty/tty. See the 1472be used to suppress input and output handling to the pty/tty. See the
1023description of C<< urxvt::timer->events >>. Make sure to always restore 1473description of C<< urxvt::timer->events >>. Make sure to always restore
1024the previous value. 1474the previous value.
1025 1475
1476=item $fd = $term->pty_fd
1477
1478Returns the master file descriptor for the pty in use, or C<-1> if no pty
1479is used.
1480
1026=item $windowid = $term->parent 1481=item $windowid = $term->parent
1027 1482
1028Return the window id of the toplevel window. 1483Return the window id of the toplevel window.
1029 1484
1030=item $windowid = $term->vt 1485=item $windowid = $term->vt
1031 1486
1032Return the window id of the terminal window. 1487Return the window id of the terminal window.
1033 1488
1489=item $term->vt_emask_add ($x_event_mask)
1490
1491Adds the specified events to the vt event mask. Useful e.g. when you want
1492to receive pointer events all the times:
1493
1494 $term->vt_emask_add (urxvt::PointerMotionMask);
1495
1496=item $term->focus_in
1497
1498=item $term->focus_out
1499
1500=item $term->key_press ($state, $keycode[, $time])
1501
1502=item $term->key_release ($state, $keycode[, $time])
1503
1504Deliver various fake events to to terminal.
1505
1034=item $window_width = $term->width 1506=item $window_width = $term->width
1035 1507
1036=item $window_height = $term->height 1508=item $window_height = $term->height
1037 1509
1038=item $font_width = $term->fwidth 1510=item $font_width = $term->fwidth
1051 1523
1052=item $max_scrollback = $term->saveLines 1524=item $max_scrollback = $term->saveLines
1053 1525
1054=item $nrow_plus_saveLines = $term->total_rows 1526=item $nrow_plus_saveLines = $term->total_rows
1055 1527
1056=item $lines_in_scrollback = $term->nsaved 1528=item $topmost_scrollback_row = $term->top_row
1057 1529
1058Return various integers describing terminal characteristics. 1530Return various integers describing terminal characteristics.
1059 1531
1532=item $x_display = $term->display_id
1533
1534Return the DISPLAY used by rxvt-unicode.
1535
1060=item $lc_ctype = $term->locale 1536=item $lc_ctype = $term->locale
1061 1537
1062Returns the LC_CTYPE category string used by this rxvt-unicode. 1538Returns the LC_CTYPE category string used by this rxvt-unicode.
1063 1539
1064=item $x_display = $term->display_id 1540=item $env = $term->env
1065 1541
1066Return the DISPLAY used by rxvt-unicode. 1542Returns a copy of the environment in effect for the terminal as a hashref
1543similar to C<\%ENV>.
1544
1545=item @envv = $term->envv
1546
1547Returns the environment as array of strings of the form C<VAR=VALUE>.
1548
1549=item @argv = $term->argv
1550
1551Return the argument vector as this terminal, similar to @ARGV, but
1552includes the program name as first element.
1553
1554=cut
1555
1556sub env {
1557 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1558}
1067 1559
1068=item $modifiermask = $term->ModLevel3Mask 1560=item $modifiermask = $term->ModLevel3Mask
1069 1561
1070=item $modifiermask = $term->ModMetaMask 1562=item $modifiermask = $term->ModMetaMask
1071 1563
1072=item $modifiermask = $term->ModNumLockMask 1564=item $modifiermask = $term->ModNumLockMask
1073 1565
1074Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1566Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1075AltGr), the meta key (often Alt) and the num lock key, if applicable. 1567AltGr), the meta key (often Alt) and the num lock key, if applicable.
1076 1568
1569=item $screen = $term->current_screen
1570
1571Returns the currently displayed screen (0 primary, 1 secondary).
1572
1573=item $cursor_is_hidden = $term->hidden_cursor
1574
1575Returns whether the cursor is currently hidden or not.
1576
1077=item $view_start = $term->view_start ([$newvalue]) 1577=item $view_start = $term->view_start ([$newvalue])
1078 1578
1079Returns the negative row number of the topmost line. Minimum value is 1579Returns the row number of the topmost displayed line. Maximum value is
1080C<0>, which displays the normal terminal contents. Larger values scroll 1580C<0>, which displays the normal terminal contents. Lower values scroll
1081this many lines into the scrollback buffer. 1581this many lines into the scrollback buffer.
1082 1582
1083=item $term->want_refresh 1583=item $term->want_refresh
1084 1584
1085Requests a screen refresh. At the next opportunity, rxvt-unicode will 1585Requests a screen refresh. At the next opportunity, rxvt-unicode will
1100line, starting at column C<$start_col> (default C<0>), which is useful 1600line, starting at column C<$start_col> (default C<0>), which is useful
1101to replace only parts of a line. The font index in the rendition will 1601to replace only parts of a line. The font index in the rendition will
1102automatically be updated. 1602automatically be updated.
1103 1603
1104C<$text> is in a special encoding: tabs and wide characters that use more 1604C<$text> is in a special encoding: tabs and wide characters that use more
1105than one cell when displayed are padded with urxvt::NOCHAR characters 1605than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1106(C<chr 65535>). Characters with combining characters and other characters 1606characters. Characters with combining characters and other characters that
1107that do not fit into the normal tetx encoding will be replaced with 1607do not fit into the normal tetx encoding will be replaced with characters
1108characters in the private use area. 1608in the private use area.
1109 1609
1110You have to obey this encoding when changing text. The advantage is 1610You have to obey this encoding when changing text. The advantage is
1111that C<substr> and similar functions work on screen cells and not on 1611that C<substr> and similar functions work on screen cells and not on
1112characters. 1612characters.
1113 1613
1164Return the row number of the first/last row of the line, respectively. 1664Return the row number of the first/last row of the line, respectively.
1165 1665
1166=item $offset = $line->offset_of ($row, $col) 1666=item $offset = $line->offset_of ($row, $col)
1167 1667
1168Returns the character offset of the given row|col pair within the logical 1668Returns the character offset of the given row|col pair within the logical
1169line. 1669line. Works for rows outside the line, too, and returns corresponding
1670offsets outside the string.
1170 1671
1171=item ($row, $col) = $line->coord_of ($offset) 1672=item ($row, $col) = $line->coord_of ($offset)
1172 1673
1173Translates a string offset into terminal coordinates again. 1674Translates a string offset into terminal coordinates again.
1174 1675
1256where one character corresponds to one screen cell. See 1757where one character corresponds to one screen cell. See
1257C<< $term->ROW_t >> for details. 1758C<< $term->ROW_t >> for details.
1258 1759
1259=item $string = $term->special_decode $text 1760=item $string = $term->special_decode $text
1260 1761
1261Converts rxvt-unicodes text reprsentation into a perl string. See 1762Converts rxvt-unicodes text representation into a perl string. See
1262C<< $term->ROW_t >> for details. 1763C<< $term->ROW_t >> for details.
1263 1764
1264=item $success = $term->grab_button ($button, $modifiermask) 1765=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1265 1766
1767=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1768
1266Registers a synchronous button grab. See the XGrabButton manpage. 1769Register/unregister a synchronous button grab. See the XGrabButton
1770manpage.
1267 1771
1268=item $success = $term->grab ($eventtime[, $sync]) 1772=item $success = $term->grab ($eventtime[, $sync])
1269 1773
1270Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1774Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1271synchronous (C<$sync> is true). Also remembers the grab timestampe. 1775synchronous (C<$sync> is true). Also remembers the grab timestamp.
1272 1776
1273=item $term->allow_events_async 1777=item $term->allow_events_async
1274 1778
1275Calls XAllowEvents with AsyncBoth for the most recent grab. 1779Calls XAllowEvents with AsyncBoth for the most recent grab.
1276 1780
1286=item $term->ungrab 1790=item $term->ungrab
1287 1791
1288Calls XUngrab for the most recent grab. Is called automatically on 1792Calls XUngrab for the most recent grab. Is called automatically on
1289evaluation errors, as it is better to lose the grab in the error case as 1793evaluation errors, as it is better to lose the grab in the error case as
1290the session. 1794the session.
1795
1796=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1797
1798=item $atom_name = $term->XGetAtomName ($atom)
1799
1800=item @atoms = $term->XListProperties ($window)
1801
1802=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1803
1804=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1805
1806=item $term->XDeleteProperty ($window, $property)
1807
1808=item $window = $term->DefaultRootWindow
1809
1810=item $term->XReparentWindow ($window, $parent, [$x, $y])
1811
1812=item $term->XMapWindow ($window)
1813
1814=item $term->XUnmapWindow ($window)
1815
1816=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1817
1818=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1819
1820=item $term->XChangeInput ($window, $add_events[, $del_events])
1821
1822Various X or X-related functions. The C<$term> object only serves as
1823the source of the display, otherwise those functions map more-or-less
1824directory onto the X functions of the same name.
1291 1825
1292=back 1826=back
1293 1827
1294=cut 1828=cut
1295 1829
1359 my ($self, $text, $cb) = @_; 1893 my ($self, $text, $cb) = @_;
1360 1894
1361 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1895 $self->add_item ({ type => "button", text => $text, activate => $cb});
1362} 1896}
1363 1897
1364=item $popup->add_toggle ($text, $cb, $initial_value) 1898=item $popup->add_toggle ($text, $initial_value, $cb)
1365 1899
1366Adds a toggle/checkbox item to the popup. Teh callback gets called 1900Adds a toggle/checkbox item to the popup. The callback gets called
1367whenever it gets toggled, with a boolean indicating its value as its first 1901whenever it gets toggled, with a boolean indicating its new value as its
1368argument. 1902first argument.
1369 1903
1370=cut 1904=cut
1371 1905
1372sub add_toggle { 1906sub add_toggle {
1373 my ($self, $text, $cb, $value) = @_; 1907 my ($self, $text, $value, $cb) = @_;
1374 1908
1375 my $item; $item = { 1909 my $item; $item = {
1376 type => "button", 1910 type => "button",
1377 text => " $text", 1911 text => " $text",
1378 value => $value, 1912 value => $value,
1392sub show { 1926sub show {
1393 my ($self) = @_; 1927 my ($self) = @_;
1394 1928
1395 local $urxvt::popup::self = $self; 1929 local $urxvt::popup::self = $self;
1396 1930
1931 my $env = $self->{term}->env;
1932 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1933 delete $env->{LC_ALL};
1397 local $ENV{LC_ALL} = $self->{term}->locale; 1934 $env->{LC_CTYPE} = $self->{term}->locale;
1398 1935
1399 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1936 urxvt::term->new ($env, "popup",
1937 "--perl-lib" => "", "--perl-ext-common" => "",
1938 "-pty-fd" => -1, "-sl" => 0,
1939 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1400 "--transient-for" => $self->{term}->parent, 1940 "--transient-for" => $self->{term}->parent,
1401 "-display" => $self->{term}->display_id, 1941 "-display" => $self->{term}->display_id,
1402 "-pe" => "urxvt-popup") 1942 "-pe" => "urxvt-popup")
1403 or die "unable to create popup window\n"; 1943 or die "unable to create popup window\n";
1404} 1944}
1405 1945
1406sub DESTROY { 1946sub DESTROY {
1407 my ($self) = @_; 1947 my ($self) = @_;
1408 1948
1409 delete $self->{term}{_destroy}{$self}; 1949 delete $self->{term}{_destroy}{$self};
1410 $self->{term}->ungrab; 1950 $self->{term}->ungrab;
1411} 1951}
1952
1953=back
1954
1955=cut
1956
1957package urxvt::watcher;
1412 1958
1413=head2 The C<urxvt::timer> Class 1959=head2 The C<urxvt::timer> Class
1414 1960
1415This class implements timer watchers/events. Time is represented as a 1961This class implements timer watchers/events. Time is represented as a
1416fractional number of seconds since the epoch. Example: 1962fractional number of seconds since the epoch. Example:
1454Start the timer. 2000Start the timer.
1455 2001
1456=item $timer = $timer->start ($tstamp) 2002=item $timer = $timer->start ($tstamp)
1457 2003
1458Set the event trigger time to C<$tstamp> and start the timer. 2004Set the event trigger time to C<$tstamp> and start the timer.
2005
2006=item $timer = $timer->after ($delay)
2007
2008Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1459 2009
1460=item $timer = $timer->stop 2010=item $timer = $timer->stop
1461 2011
1462Stop the timer. 2012Stop the timer.
1463 2013
1492Set the callback to be called when io events are triggered. C<$reventmask> 2042Set the callback to be called when io events are triggered. C<$reventmask>
1493is a bitset as described in the C<events> method. 2043is a bitset as described in the C<events> method.
1494 2044
1495=item $iow = $iow->fd ($fd) 2045=item $iow = $iow->fd ($fd)
1496 2046
1497Set the filedescriptor (not handle) to watch. 2047Set the file descriptor (not handle) to watch.
1498 2048
1499=item $iow = $iow->events ($eventmask) 2049=item $iow = $iow->events ($eventmask)
1500 2050
1501Set the event mask to watch. The only allowed values are 2051Set the event mask to watch. The only allowed values are
1502C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed 2052C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1506 2056
1507Start watching for requested events on the given handle. 2057Start watching for requested events on the given handle.
1508 2058
1509=item $iow = $iow->stop 2059=item $iow = $iow->stop
1510 2060
1511Stop watching for events on the given filehandle. 2061Stop watching for events on the given file handle.
2062
2063=back
2064
2065=head2 The C<urxvt::iw> Class
2066
2067This class implements idle watchers, that get called automatically when
2068the process is idle. They should return as fast as possible, after doing
2069some useful work.
2070
2071=over 4
2072
2073=item $iw = new urxvt::iw
2074
2075Create a new idle watcher object in stopped state.
2076
2077=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2078
2079Set the callback to be called when the watcher triggers.
2080
2081=item $timer = $timer->start
2082
2083Start the watcher.
2084
2085=item $timer = $timer->stop
2086
2087Stop the watcher.
2088
2089=back
2090
2091=head2 The C<urxvt::pw> Class
2092
2093This class implements process watchers. They create an event whenever a
2094process exits, after which they stop automatically.
2095
2096 my $pid = fork;
2097 ...
2098 $term->{pw} = urxvt::pw
2099 ->new
2100 ->start ($pid)
2101 ->cb (sub {
2102 my ($pw, $exit_status) = @_;
2103 ...
2104 });
2105
2106=over 4
2107
2108=item $pw = new urxvt::pw
2109
2110Create a new process watcher in stopped state.
2111
2112=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2113
2114Set the callback to be called when the timer triggers.
2115
2116=item $pw = $timer->start ($pid)
2117
2118Tells the watcher to start watching for process C<$pid>.
2119
2120=item $pw = $pw->stop
2121
2122Stop the watcher.
1512 2123
1513=back 2124=back
1514 2125
1515=head1 ENVIRONMENT 2126=head1 ENVIRONMENT
1516 2127
1523 2134
1524=item == 0 - fatal messages 2135=item == 0 - fatal messages
1525 2136
1526=item >= 3 - script loading and management 2137=item >= 3 - script loading and management
1527 2138
1528=item >=10 - all events received 2139=item >=10 - all called hooks
2140
2141=item >=11 - hook return values
1529 2142
1530=back 2143=back
1531 2144
1532=head1 AUTHOR 2145=head1 AUTHOR
1533 2146

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