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Revision: 1.33
Committed: Wed Jan 18 09:40:53 2006 UTC (18 years, 5 months ago) by root
Branch: MAIN
Changes since 1.32: +35 -23 lines
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131     .IX Title "rxvt 3"
132 root 1.33 .TH rxvt 3 "2006-01-18" "7.1" "RXVT-UNICODE"
133 root 1.1 .SH "NAME"
134 root 1.5 @@RXVT_NAME@@perl \- rxvt\-unicode's embedded perl interpreter
135 root 1.1 .SH "SYNOPSIS"
136     .IX Header "SYNOPSIS"
137 root 1.5 .Vb 1
138     \& # create a file grab_test in $HOME:
139     .Ve
140 root 1.1 .PP
141     .Vb 4
142     \& sub on_sel_grab {
143     \& warn "you selected ", $_[0]->selection;
144     \& ()
145     \& }
146     .Ve
147     .PP
148     .Vb 1
149 root 1.5 \& # start a @@RXVT_NAME@@ using it:
150     .Ve
151     .PP
152     .Vb 1
153     \& @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
154 root 1.1 .Ve
155     .SH "DESCRIPTION"
156     .IX Header "DESCRIPTION"
157 root 1.15 Everytime a terminal object gets created, extension scripts specified via
158     the \f(CW\*(C`perl\*(C'\fR resource are loaded and associated with it.
159 root 1.5 .PP
160     Scripts are compiled in a 'use strict' and 'use utf8' environment, and
161     thus must be encoded as \s-1UTF\-8\s0.
162 root 1.3 .PP
163     Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
164 root 1.7 scripts will be shared (but not enabled) for all terminals.
165 root 1.20 .SH "PREPACKAGED EXTENSIONS"
166     .IX Header "PREPACKAGED EXTENSIONS"
167     This section describes the extensions delivered with this release. You can
168 root 1.6 find them in \fI@@RXVT_LIBDIR@@/urxvt/perl/\fR.
169     .PP
170     You can activate them like this:
171     .PP
172     .Vb 1
173     \& @@RXVT_NAME@@ -pe <extensionname>
174     .Ve
175 root 1.16 .IP "selection (enabled by default)" 4
176     .IX Item "selection (enabled by default)"
177 root 1.20 (More) intelligent selection. This extension tries to be more intelligent
178 root 1.25 when the user extends selections (double\-click and further clicks). Right
179     now, it tries to select words, urls and complete shell-quoted
180     arguments, which is very convenient, too, if your \fIls\fR supports
181     \&\f(CW\*(C`\-\-quoting\-style=shell\*(C'\fR.
182     .Sp
183     A double-click usually selects the word under the cursor, further clicks
184     will enlarge the selection.
185 root 1.9 .Sp
186 root 1.26 The selection works by trying to match a number of regexes and displaying
187     them in increasing order of length. You can add your own regexes by
188     specifying resources of the form:
189     .Sp
190     .Vb 3
191     \& URxvt.selection.pattern-0: perl-regex
192     \& URxvt.selection.pattern-1: perl-regex
193     \& ...
194     .Ve
195     .Sp
196     The index number (0, 1...) must not have any holes, and each regex must
197     contain at least one pair of capturing parentheses, which will be used for
198     the match. For example, the followign adds a regex that matches everything
199     between two vertical bars:
200     .Sp
201     .Vb 1
202     \& URxvt.selection.pattern-0: \e\e|([^|]+)\e\e|
203     .Ve
204     .Sp
205     You can look at the source of the selection extension to see more
206     interesting uses, such as parsing a line from beginning to end.
207     .Sp
208 root 1.32 This extension also offers following bindable keyboard commands:
209 root 1.6 .RS 4
210     .IP "rot13" 4
211     .IX Item "rot13"
212     Rot\-13 the selection when activated. Used via keyboard trigger:
213     .Sp
214     .Vb 1
215     \& URxvt.keysym.C-M-r: perl:selection:rot13
216     .Ve
217     .RE
218     .RS 4
219     .RE
220 root 1.16 .IP "option-popup (enabled by default)" 4
221     .IX Item "option-popup (enabled by default)"
222 root 1.17 Binds a popup menu to Ctrl\-Button2 that lets you toggle (some) options at
223 root 1.16 runtime.
224 root 1.17 .IP "selection-popup (enabled by default)" 4
225     .IX Item "selection-popup (enabled by default)"
226     Binds a popup menu to Ctrl\-Button3 that lets you convert the selection
227 root 1.20 text into various other formats/action (such as uri unescaping, perl
228     evalution, web-browser starting etc.), depending on content.
229 root 1.19 .IP "searchable\-scrollback<hotkey> (enabled by default)" 4
230     .IX Item "searchable-scrollback<hotkey> (enabled by default)"
231     Adds regex search functionality to the scrollback buffer, triggered
232 root 1.25 by a hotkey (default: \f(CW\*(C`M\-s\*(C'\fR). While in search mode, normal terminal
233     input/output is suspended and a regex is displayed at the bottom of the
234     screen.
235     .Sp
236     Inputting characters appends them to the regex and continues incremental
237     search. \f(CW\*(C`BackSpace\*(C'\fR removes a character from the regex, \f(CW\*(C`Up\*(C'\fR and \f(CW\*(C`Down\*(C'\fR
238     search upwards/downwards in the scrollback buffer, \f(CW\*(C`End\*(C'\fR jumps to the
239     bottom. \f(CW\*(C`Escape\*(C'\fR leaves search mode and returns to the point where search
240     was started, while \f(CW\*(C`Enter\*(C'\fR or \f(CW\*(C`Return\*(C'\fR stay at the current position and
241     additionally stores the first match in the current line into the primary
242     selection.
243 root 1.26 .IP "selection-autotransform" 4
244     .IX Item "selection-autotransform"
245     This selection allows you to do automatic transforms on a selection
246     whenever a selection is made.
247     .Sp
248     It works by specifying perl snippets (most useful is a single \f(CW\*(C`s///\*(C'\fR
249     operator) that modify \f(CW$_\fR as resources:
250     .Sp
251     .Vb 3
252     \& URxvt.selection-autotransform.0: transform
253     \& URxvt.selection-autotransform.1: transform
254     \& ...
255     .Ve
256     .Sp
257     For example, the following will transform selections of the form
258     \&\f(CW\*(C`filename:number\*(C'\fR, often seen in compiler messages, into \f(CW\*(C`vi +$filename
259     $word\*(C'\fR:
260     .Sp
261     .Vb 1
262 root 1.29 \& URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\e\ed+):?$/vi +$2 \e\eQ$1\e\eE\e\ex0d/
263 root 1.26 .Ve
264     .Sp
265     And this example matches the same,but replaces it with vi-commands you can
266     paste directly into your (vi :) editor:
267     .Sp
268     .Vb 1
269 root 1.29 \& URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\e\ed+):?$/\e\ex1b:e \e\eQ$1\e\eE\e\ex0d:$2\e\ex0d/
270 root 1.26 .Ve
271 root 1.27 .Sp
272     Of course, this can be modified to suit your needs and your editor :)
273 root 1.28 .Sp
274     To expand the example above to typical perl error messages (\*(L"\s-1XXX\s0 at
275     \&\s-1FILENAME\s0 line \s-1YYY\s0.\*(R"), you need a slightly more elaborate solution:
276     .Sp
277     .Vb 2
278     \& URxvt.selection.pattern-0: ( at .*? line \e\ed+\e\e.)
279     \& URxvt.selection-autotransform.0: s/^ at (.*?) line (\e\ed+)\e\e.$/\ex1b:e \e\eQ$1\eE\e\ex0d:$2\e\ex0d/
280     .Ve
281     .Sp
282     The first line tells the selection code to treat the unchanging part of
283     every error message as a selection pattern, and the second line transforms
284     the message into vi commands to load the file.
285 root 1.14 .IP "mark-urls" 4
286     .IX Item "mark-urls"
287 root 1.24 Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls and
288 root 1.25 make them clickable. When middle\-clicked, the program specified in the
289     resource \f(CW\*(C`urlLauncher\*(C'\fR (default \f(CW\*(C`x\-www\-browser\*(C'\fR) will be started with
290     the \s-1URL\s0 as first argument.
291 root 1.14 .IP "block-graphics-to-ascii" 4
292     .IX Item "block-graphics-to-ascii"
293     A not very useful example of filtering all text output to the terminal,
294     by replacing all line-drawing characters (U+2500 .. U+259F) by a
295     similar-looking ascii character.
296 root 1.26 .IP "digital-clock" 4
297     .IX Item "digital-clock"
298     Displays a digital clock using the built-in overlay.
299 root 1.8 .IP "example-refresh-hooks" 4
300     .IX Item "example-refresh-hooks"
301 root 1.6 Displays a very simple digital clock in the upper right corner of the
302     window. Illustrates overwriting the refresh callbacks to create your own
303     overlays or changes.
304 root 1.33 .IP "selection-pastebin" 4
305     .IX Item "selection-pastebin"
306     This is a little rarely useful extension that Uploads the selection as
307     textfile to a remote site (or does other things). (The implementation is
308     not currently secure for use in a multiuser environment as it writes to
309     \&\fI/tmp\fR directly.).
310     .Sp
311     It listens to the \f(CW\*(C`selection\-pastebin:remote\-pastebin\*(C'\fR keyboard command,
312     i.e.
313     .Sp
314     .Vb 1
315     \& URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
316     .Ve
317     .Sp
318     Pressing this combination runs a command with \f(CW\*(C`%\*(C'\fR replaced by the name of
319     the textfile. This command can be set via a resource:
320     .Sp
321     .Vb 1
322     \& URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
323     .Ve
324     .Sp
325     And the default is likely not useful to anybody but the few people around
326     here :)
327     .Sp
328     The name of the textfile is the hex encoded md5 sum of the selection, so
329     the same content should lead to the same filename.
330     .Sp
331     After a successful upload the selection will be replaced by the text given
332     in the \f(CW\*(C`selection\-pastebin\-url\*(C'\fR resource (again, the % is the placeholder
333     for the filename):
334     .Sp
335     .Vb 1
336     \& URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
337     .Ve
338 root 1.20 .SH "API DOCUMENTATION"
339     .IX Header "API DOCUMENTATION"
340 root 1.3 .Sh "General \s-1API\s0 Considerations"
341     .IX Subsection "General API Considerations"
342     All objects (such as terminals, time watchers etc.) are typical
343     reference-to-hash objects. The hash can be used to store anything you
344     like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
345 root 1.9 \&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and \fB\s-1MUST\s0 \s-1NOT\s0\fR be accessed or
346 root 1.3 modified).
347     .PP
348     When objects are destroyed on the \*(C+ side, the perl object hashes are
349     emptied, so its best to store related objects such as time watchers and
350     the like inside the terminal object so they get destroyed as soon as the
351     terminal is destroyed.
352 root 1.14 .PP
353     Argument names also often indicate the type of a parameter. Here are some
354     hints on what they mean:
355     .IP "$text" 4
356     .IX Item "$text"
357     Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
358 root 1.23 always represents one screen cell. See ROW_t for a discussion of this format.
359 root 1.14 .IP "$string" 4
360     .IX Item "$string"
361     A perl text string, with an emphasis on \fItext\fR. It can store all unicode
362     characters and is to be distinguished with text encoded in a specific
363     encoding (often locale\-specific) and binary data.
364     .IP "$octets" 4
365     .IX Item "$octets"
366     Either binary data or \- more common \- a text string encoded in a
367     locale-specific way.
368 root 1.19 .Sh "Extension Objects"
369     .IX Subsection "Extension Objects"
370     Very perl extension is a perl class. A separate perl object is created
371     for each terminal and each extension and passed as the first parameter to
372     hooks. So extensions can use their \f(CW$self\fR object without having to think
373     about other extensions, with the exception of methods and members that
374     begin with an underscore character \f(CW\*(C`_\*(C'\fR: these are reserved for internal
375     use.
376     .PP
377     Although it isn't a \f(CW\*(C`urxvt::term\*(C'\fR object, you can call all methods of the
378     \&\f(CW\*(C`urxvt::term\*(C'\fR class on this object.
379     .PP
380     It has the following methods and data members:
381     .ie n .IP "$urxvt_term = $self\->{term}" 4
382     .el .IP "$urxvt_term = \f(CW$self\fR\->{term}" 4
383     .IX Item "$urxvt_term = $self->{term}"
384     Returns the \f(CW\*(C`urxvt::term\*(C'\fR object associated with this instance of the
385     extension. This member \fImust not\fR be changed in any way.
386     .ie n .IP "$self\->enable ($hook_name => $cb\fR, [$hook_name => \f(CW$cb..])" 4
387     .el .IP "$self\->enable ($hook_name => \f(CW$cb\fR, [$hook_name => \f(CW$cb\fR..])" 4
388     .IX Item "$self->enable ($hook_name => $cb, [$hook_name => $cb..])"
389     Dynamically enable the given hooks (named without the \f(CW\*(C`on_\*(C'\fR prefix) for
390     this extension, replacing any previous hook. This is useful when you want
391     to overwrite time-critical hooks only temporarily.
392     .ie n .IP "$self\->disable ($hook_name[, $hook_name..])" 4
393     .el .IP "$self\->disable ($hook_name[, \f(CW$hook_name\fR..])" 4
394     .IX Item "$self->disable ($hook_name[, $hook_name..])"
395     Dynamically disable the given hooks.
396 root 1.1 .Sh "Hooks"
397     .IX Subsection "Hooks"
398 root 1.14 The following subroutines can be declared in extension files, and will be
399 root 1.9 called whenever the relevant event happens.
400     .PP
401 root 1.19 The first argument passed to them is an extension oject as described in
402     the in the \f(CW\*(C`Extension Objects\*(C'\fR section.
403 root 1.1 .PP
404 root 1.19 \&\fBAll\fR of these hooks must return a boolean value. If it is true, then the
405     event counts as being \fIconsumed\fR, and the invocation of other hooks is
406     skipped, and the relevant action might not be carried out by the \*(C+ code.
407     .PP
408     \&\fIWhen in doubt, return a false value (preferably \f(CI\*(C`()\*(C'\fI).\fR
409 root 1.1 .ie n .IP "on_init $term" 4
410     .el .IP "on_init \f(CW$term\fR" 4
411     .IX Item "on_init $term"
412     Called after a new terminal object has been initialized, but before
413 root 1.14 windows are created or the command gets run. Most methods are unsafe to
414     call or deliver senseless data, as terminal size and other characteristics
415     have not yet been determined. You can safely query and change resources,
416     though.
417 root 1.1 .ie n .IP "on_reset $term" 4
418     .el .IP "on_reset \f(CW$term\fR" 4
419     .IX Item "on_reset $term"
420     Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
421     control sequences. Here is where you can react on changes to size-related
422     variables.
423     .ie n .IP "on_start $term" 4
424     .el .IP "on_start \f(CW$term\fR" 4
425     .IX Item "on_start $term"
426     Called at the very end of initialisation of a new terminal, just before
427     returning to the mainloop.
428     .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
429     .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
430     .IX Item "on_sel_make $term, $eventtime"
431     Called whenever a selection has been made by the user, but before the
432     selection text is copied, so changes to the beginning, end or type of the
433     selection will be honored.
434     .Sp
435     Returning a true value aborts selection making by urxvt, in which case you
436     have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
437     .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
438     .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
439     .IX Item "on_sel_grab $term, $eventtime"
440     Called whenever a selection has been copied, but before the selection is
441     requested from the server. The selection text can be queried and changed
442     by calling \f(CW\*(C`$term\->selection\*(C'\fR.
443     .Sp
444     Returning a true value aborts selection grabbing. It will still be hilighted.
445 root 1.9 .ie n .IP "on_sel_extend $term" 4
446     .el .IP "on_sel_extend \f(CW$term\fR" 4
447     .IX Item "on_sel_extend $term"
448     Called whenever the user tries to extend the selection (e.g. with a double
449     click) and is either supposed to return false (normal operation), or
450     should extend the selection itelf and return true to suppress the built-in
451 root 1.25 processing. This can happen multiple times, as long as the callback
452     returns true, it will be called on every further click by the user and is
453     supposed to enlarge the selection more and more, if possible.
454 root 1.9 .Sp
455     See the \fIselection\fR example extension.
456 root 1.1 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
457     .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
458     .IX Item "on_view_change $term, $offset"
459     Called whenever the view offset changes, i..e the user or program
460     scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
461     show this many lines of scrollback.
462     .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
463     .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
464     .IX Item "on_scroll_back $term, $lines, $saved"
465     Called whenever lines scroll out of the terminal area into the scrollback
466     buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
467     than the scroll back buffer or the terminal.
468     .Sp
469     It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
470     \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
471     number of lines that will be in the scrollback buffer.
472 root 1.11 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
473     .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
474     .IX Item "on_osc_seq $term, $string"
475     Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
476     operating system command) is processed. Cursor position and other state
477     information is up-to-date when this happens. For interoperability, the
478     string should start with the extension name and a colon, to distinguish
479     it from commands for other extensions, and this might be enforced in the
480     future.
481     .Sp
482     Be careful not ever to trust (in a security sense) the data you receive,
483     as its source can not easily be controleld (e\-mail content, messages from
484     other users on the same system etc.).
485 root 1.14 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
486     .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
487     .IX Item "on_add_lines $term, $string"
488     Called whenever text is about to be output, with the text as argument. You
489     can filter/change and output the text yourself by returning a true value
490     and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
491     might be very slow, however, as your hook is called for \fBall\fR text being
492     output.
493 root 1.19 .ie n .IP "on_tt_write $term\fR, \f(CW$octets" 4
494     .el .IP "on_tt_write \f(CW$term\fR, \f(CW$octets\fR" 4
495     .IX Item "on_tt_write $term, $octets"
496     Called whenever some data is written to the tty/pty and can be used to
497     suppress or filter tty input.
498 root 1.14 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
499     .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
500     .IX Item "on_line_update $term, $row"
501     Called whenever a line was updated or changed. Can be used to filter
502     screen output (e.g. underline urls or other useless stuff). Only lines
503     that are being shown will be filtered, and, due to performance reasons,
504     not always immediately.
505     .Sp
506     The row number is always the topmost row of the line if the line spans
507     multiple rows.
508     .Sp
509     Please note that, if you change the line, then the hook might get called
510     later with the already-modified line (e.g. if unrelated parts change), so
511     you cannot just toggle rendition bits, but only set them.
512 root 1.1 .ie n .IP "on_refresh_begin $term" 4
513     .el .IP "on_refresh_begin \f(CW$term\fR" 4
514     .IX Item "on_refresh_begin $term"
515     Called just before the screen gets redrawn. Can be used for overlay
516     or similar effects by modify terminal contents in refresh_begin, and
517     restoring them in refresh_end. The built-in overlay and selection display
518     code is run after this hook, and takes precedence.
519     .ie n .IP "on_refresh_end $term" 4
520     .el .IP "on_refresh_end \f(CW$term\fR" 4
521     .IX Item "on_refresh_end $term"
522     Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
523 root 1.5 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
524     .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
525     .IX Item "on_keyboard_command $term, $string"
526     Called whenever the user presses a key combination that has a
527     \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
528     resource in the @@RXVT_NAME@@(1) manpage).
529 root 1.29 .ie n .IP "on_x_event $term\fR, \f(CW$event" 4
530     .el .IP "on_x_event \f(CW$term\fR, \f(CW$event\fR" 4
531     .IX Item "on_x_event $term, $event"
532     Called on every X event received on the vt window (and possibly other
533     windows). Should only be used as a last resort. Most event structure
534     members are not passed.
535 root 1.15 .ie n .IP "on_focus_in $term" 4
536     .el .IP "on_focus_in \f(CW$term\fR" 4
537     .IX Item "on_focus_in $term"
538     Called whenever the window gets the keyboard focus, before rxvt-unicode
539     does focus in processing.
540     .ie n .IP "on_focus_out $term" 4
541     .el .IP "on_focus_out \f(CW$term\fR" 4
542     .IX Item "on_focus_out $term"
543     Called wheneever the window loses keyboard focus, before rxvt-unicode does
544     focus out processing.
545 root 1.19 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets" 4
546     .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets\fR" 4
547     .IX Item "on_key_press $term, $event, $keysym, $octets"
548 root 1.14 .PD 0
549 root 1.19 .ie n .IP "on_key_release $term\fR, \f(CW$event\fR, \f(CW$keysym" 4
550     .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR" 4
551     .IX Item "on_key_release $term, $event, $keysym"
552 root 1.14 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
553     .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
554     .IX Item "on_button_press $term, $event"
555     .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
556     .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
557     .IX Item "on_button_release $term, $event"
558     .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
559     .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
560     .IX Item "on_motion_notify $term, $event"
561 root 1.15 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
562     .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
563     .IX Item "on_map_notify $term, $event"
564     .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
565     .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
566     .IX Item "on_unmap_notify $term, $event"
567 root 1.14 .PD
568     Called whenever the corresponding X event is received for the terminal If
569     the hook returns true, then the even will be ignored by rxvt\-unicode.
570     .Sp
571     The event is a hash with most values as named by Xlib (see the XEvent
572     manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
573     and column under the mouse cursor.
574     .Sp
575     \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
576     output, if any, in locale-specific encoding.
577     .Sp
578     subwindow.
579 root 1.9 .ie n .Sh "Variables in the ""urxvt"" Package"
580     .el .Sh "Variables in the \f(CWurxvt\fP Package"
581     .IX Subsection "Variables in the urxvt Package"
582 root 1.21 .IP "$urxvt::LIBDIR" 4
583     .IX Item "$urxvt::LIBDIR"
584     The rxvt-unicode library directory, where, among other things, the perl
585     modules and scripts are stored.
586     .ie n .IP "$urxvt::RESCLASS, $urxvt::RESCLASS" 4
587     .el .IP "$urxvt::RESCLASS, \f(CW$urxvt::RESCLASS\fR" 4
588     .IX Item "$urxvt::RESCLASS, $urxvt::RESCLASS"
589     The resource class and name rxvt-unicode uses to look up X resources.
590     .IP "$urxvt::RXVTNAME" 4
591     .IX Item "$urxvt::RXVTNAME"
592     The basename of the installed binaries, usually \f(CW\*(C`urxvt\*(C'\fR.
593 root 1.9 .IP "$urxvt::TERM" 4
594     .IX Item "$urxvt::TERM"
595 root 1.14 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
596     object, whenever a callback/hook is executing.
597 root 1.1 .ie n .Sh "Functions in the ""urxvt"" Package"
598     .el .Sh "Functions in the \f(CWurxvt\fP Package"
599     .IX Subsection "Functions in the urxvt Package"
600     .ie n .IP "urxvt::fatal $errormessage" 4
601     .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
602     .IX Item "urxvt::fatal $errormessage"
603     Fatally aborts execution with the given error message. Avoid at all
604     costs! The only time this is acceptable is when the terminal process
605     starts up.
606     .ie n .IP "urxvt::warn $string" 4
607     .el .IP "urxvt::warn \f(CW$string\fR" 4
608     .IX Item "urxvt::warn $string"
609 root 1.3 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
610 root 1.1 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
611     that calls this function.
612     .Sp
613     Using this function has the advantage that its output ends up in the
614     correct place, e.g. on stderr of the connecting urxvtc client.
615 root 1.22 .Sp
616     Messages have a size limit of 1023 bytes currently.
617 root 1.1 .IP "$time = urxvt::NOW" 4
618     .IX Item "$time = urxvt::NOW"
619     Returns the \*(L"current time\*(R" (as per the event loop).
620 root 1.15 .IP "urxvt::CurrentTime" 4
621     .IX Item "urxvt::CurrentTime"
622     .PD 0
623     .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
624     .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
625 root 1.29 .IP "urxvt::NoEventMask, KeyPressMask, KeyReleaseMask, ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask, PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask, Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask, KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask, ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask, FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask" 4
626     .IX Item "urxvt::NoEventMask, KeyPressMask, KeyReleaseMask, ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask, PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask, Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask, KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask, ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask, FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask"
627     .IP "urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify, EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose, GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify, UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify, ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, SelectionNotify, ColormapNotify, ClientMessage, MappingNotify" 4
628     .IX Item "urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify, EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose, GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify, UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify, ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, SelectionNotify, ColormapNotify, ClientMessage, MappingNotify"
629 root 1.15 .PD
630 root 1.16 Various constants for use in X calls and event processing.
631 root 1.8 .Sh "\s-1RENDITION\s0"
632     .IX Subsection "RENDITION"
633     Rendition bitsets contain information about colour, font, font styles and
634     similar information for each screen cell.
635     .PP
636     The following \*(L"macros\*(R" deal with changes in rendition sets. You should
637     never just create a bitset, you should always modify an existing one,
638     as they contain important information required for correct operation of
639     rxvt\-unicode.
640     .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
641     .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
642     Returns the default rendition, as used when the terminal is starting up or
643     being reset. Useful as a base to start when creating renditions.
644     .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
645     .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
646     Return the rendition mask used for overlays by default.
647     .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
648     .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
649     Return the bit that enabled bold, italic, blink, reverse-video and
650     underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
651     the bitset.
652     .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
653     .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
654     .IX Item "$foreground = urxvt::GET_BASEFG $rend"
655     .PD 0
656     .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
657     .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
658     .IX Item "$background = urxvt::GET_BASEBG $rend"
659     .PD
660     Return the foreground/background colour index, respectively.
661 root 1.21 .ie n .IP "$rend = urxvt::SET_FGCOLOR $rend\fR, \f(CW$new_colour" 4
662     .el .IP "$rend = urxvt::SET_FGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
663     .IX Item "$rend = urxvt::SET_FGCOLOR $rend, $new_colour"
664 root 1.8 .PD 0
665 root 1.21 .ie n .IP "$rend = urxvt::SET_BGCOLOR $rend\fR, \f(CW$new_colour" 4
666     .el .IP "$rend = urxvt::SET_BGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
667     .IX Item "$rend = urxvt::SET_BGCOLOR $rend, $new_colour"
668 root 1.8 .PD
669     Replace the foreground/background colour in the rendition mask with the
670     specified one.
671 root 1.21 .ie n .IP "$value = urxvt::GET_CUSTOM $rend" 4
672     .el .IP "$value = urxvt::GET_CUSTOM \f(CW$rend\fR" 4
673     .IX Item "$value = urxvt::GET_CUSTOM $rend"
674 root 1.8 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
675     extensions. They can be set and changed as you like and are initially
676     zero.
677 root 1.21 .ie n .IP "$rend = urxvt::SET_CUSTOM $rend\fR, \f(CW$new_value" 4
678     .el .IP "$rend = urxvt::SET_CUSTOM \f(CW$rend\fR, \f(CW$new_value\fR" 4
679     .IX Item "$rend = urxvt::SET_CUSTOM $rend, $new_value"
680 root 1.8 Change the custom value.
681 root 1.16 .ie n .Sh "The ""urxvt::anyevent"" Class"
682     .el .Sh "The \f(CWurxvt::anyevent\fP Class"
683     .IX Subsection "The urxvt::anyevent Class"
684     The sole purpose of this class is to deliver an interface to the
685     \&\f(CW\*(C`AnyEvent\*(C'\fR module \- any module using it will work inside urxvt without
686 root 1.21 further programming. The only exception is that you cannot wait on
687     condition variables, but non-blocking condvar use is ok. What this means
688     is that you cannot use blocking APIs, but the non-blocking variant should
689     work.
690 root 1.1 .ie n .Sh "The ""urxvt::term"" Class"
691     .el .Sh "The \f(CWurxvt::term\fP Class"
692     .IX Subsection "The urxvt::term Class"
693 root 1.22 .ie n .IP "$term = new urxvt::term $envhashref\fR, \f(CW$rxvtname, [arg...]" 4
694     .el .IP "$term = new urxvt::term \f(CW$envhashref\fR, \f(CW$rxvtname\fR, [arg...]" 4
695     .IX Item "$term = new urxvt::term $envhashref, $rxvtname, [arg...]"
696     Creates a new terminal, very similar as if you had started it with system
697 root 1.23 \&\f(CW\*(C`$rxvtname, arg...\*(C'\fR. \f(CW$envhashref\fR must be a reference to a \f(CW%ENV\fR\-like
698     hash which defines the environment of the new terminal.
699     .Sp
700     Croaks (and probably outputs an error message) if the new instance
701 root 1.22 couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new instance didn't
702     initialise perl, and the terminal object otherwise. The \f(CW\*(C`init\*(C'\fR and
703     \&\f(CW\*(C`start\*(C'\fR hooks will be called during this call.
704 root 1.14 .IP "$term\->destroy" 4
705     .IX Item "$term->destroy"
706 root 1.21 Destroy the terminal object (close the window, free resources
707     etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
708     watchers (timers, io watchers) are still active.
709 root 1.15 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
710     .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
711     .IX Item "$isset = $term->option ($optval[, $set])"
712     Returns true if the option specified by \f(CW$optval\fR is enabled, and
713     optionally change it. All option values are stored by name in the hash
714     \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
715     .Sp
716     Here is a a likely non-exhaustive list of option names, please see the
717     source file \fI/src/optinc.h\fR to see the actual list:
718     .Sp
719     .Vb 6
720     \& borderLess console cursorBlink cursorUnderline hold iconic insecure
721     \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
722     \& pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
723     \& scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
724     \& secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
725     \& tripleclickwords utmpInhibit visualBell
726     .Ve
727 root 1.2 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
728     .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
729     .IX Item "$value = $term->resource ($name[, $newval])"
730     Returns the current resource value associated with a given name and
731     optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
732     hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
733     .Sp
734     The new value must be properly encoded to a suitable character encoding
735     before passing it to this method. Similarly, the returned value may need
736     to be converted from the used encoding to text.
737     .Sp
738     Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
739     as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
740     likely change).
741     .Sp
742     Please note that resource strings will currently only be freed when the
743     terminal is destroyed, so changing options frequently will eat memory.
744     .Sp
745     Here is a a likely non-exhaustive list of resource names, not all of which
746 root 1.15 are supported in every build, please see the source file \fI/src/rsinc.h\fR
747     to see the actual list:
748 root 1.2 .Sp
749     .Vb 12
750     \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
751     \& borderLess color cursorBlink cursorUnderline cutchars delete_key
752     \& display_name embed ext_bwidth fade font geometry hold iconName
753     \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
754 root 1.4 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
755 root 1.12 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
756 root 1.3 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
757     \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
758     \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
759     \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
760     \& shade term_name title transparent transparent_all tripleclickwords
761     \& utmpInhibit visualBell
762 root 1.2 .Ve
763 root 1.24 .ie n .IP "$value = $term\->x_resource ($pattern)" 4
764     .el .IP "$value = \f(CW$term\fR\->x_resource ($pattern)" 4
765     .IX Item "$value = $term->x_resource ($pattern)"
766     Returns the X\-Resource for the given pattern, excluding the program or
767     class name, i.e. \f(CW\*(C`$term\->x_resource ("boldFont")\*(C'\fR should return the
768     same value as used by this instance of rxvt\-unicode. Returns \f(CW\*(C`undef\*(C'\fR if no
769     resource with that pattern exists.
770     .Sp
771     This method should only be called during the \f(CW\*(C`on_start\*(C'\fR hook, as there is
772     only one resource database per display, and later invocations might return
773     the wrong resources.
774 root 1.19 .ie n .IP "$success = $term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string)" 4
775     .el .IP "$success = \f(CW$term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string\fR)" 4
776     .IX Item "$success = $term->parse_keysym ($keysym_spec, $command_string)"
777     Adds a keymap translation exactly as specified via a resource. See the
778     \&\f(CW\*(C`keysym\*(C'\fR resource in the @@RXVT_NAME@@(1) manpage.
779 root 1.14 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
780     .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
781     .IX Item "$rend = $term->rstyle ([$new_rstyle])"
782     Return and optionally change the current rendition. Text that is output by
783     the terminal application will use this style.
784 root 1.13 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
785     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
786     .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
787     Return the current coordinates of the text cursor position and optionally
788     set it (which is usually bad as applications don't expect that).
789 root 1.1 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
790     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
791     .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
792     .PD 0
793     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
794     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
795     .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
796     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
797     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
798     .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
799     .PD
800     Return the current values of the selection mark, begin or end positions,
801     and optionally set them to new values.
802 root 1.25 .ie n .IP "$term\->selection_make ($eventtime[, $rectangular])" 4
803     .el .IP "$term\->selection_make ($eventtime[, \f(CW$rectangular\fR])" 4
804     .IX Item "$term->selection_make ($eventtime[, $rectangular])"
805     Tries to make a selection as set by \f(CW\*(C`selection_beg\*(C'\fR and
806     \&\f(CW\*(C`selection_end\*(C'\fR. If \f(CW$rectangular\fR is true (default: false), a
807     rectangular selection will be made. This is the prefered function to make
808     a selection.
809 root 1.1 .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
810     .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
811     .IX Item "$success = $term->selection_grab ($eventtime)"
812 root 1.25 Try to request the primary selection text from the server (for example, as
813     set by the next method). No visual feedback will be given. This function
814     is mostly useful from within \f(CW\*(C`on_sel_grab\*(C'\fR hooks.
815 root 1.1 .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
816     .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
817     .IX Item "$oldtext = $term->selection ([$newtext])"
818     Return the current selection text and optionally replace it by \f(CW$newtext\fR.
819 root 1.19 .ie n .IP "$term\->overlay_simple ($x, $y\fR, \f(CW$text)" 4
820     .el .IP "$term\->overlay_simple ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
821     .IX Item "$term->overlay_simple ($x, $y, $text)"
822     Create a simple multi-line overlay box. See the next method for details.
823 root 1.8 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
824     .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
825     .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
826 root 1.1 Create a new (empty) overlay at the given position with the given
827 root 1.8 width/height. \f(CW$rstyle\fR defines the initial rendition style
828     (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
829     .Sp
830     If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
831     around the box.
832     .Sp
833     If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
834     right/bottom side, respectively.
835     .Sp
836     This method returns an urxvt::overlay object. The overlay will be visible
837     as long as the perl object is referenced.
838     .Sp
839 root 1.9 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
840     .RS 4
841 root 1.8 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
842     .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
843     .IX Item "$overlay->set ($x, $y, $text, $rend)"
844     Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
845     text in rxvt\-unicode's special encoding and an array of rendition values
846     at a specific position inside the overlay.
847 root 1.9 .IP "$overlay\->hide" 4
848     .IX Item "$overlay->hide"
849     If visible, hide the overlay, but do not destroy it.
850     .IP "$overlay\->show" 4
851     .IX Item "$overlay->show"
852     If hidden, display the overlay again.
853     .RE
854     .RS 4
855     .RE
856 root 1.15 .ie n .IP "$popup = $term\->popup ($event)" 4
857     .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
858     .IX Item "$popup = $term->popup ($event)"
859     Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
860     \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
861     currently).
862 root 1.14 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
863     .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
864     .IX Item "$cellwidth = $term->strwidth ($string)"
865 root 1.3 Returns the number of screen-cells this string would need. Correctly
866     accounts for wide and combining characters.
867 root 1.14 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
868     .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
869     .IX Item "$octets = $term->locale_encode ($string)"
870 root 1.3 Convert the given text string into the corresponding locale encoding.
871 root 1.14 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
872     .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
873     .IX Item "$string = $term->locale_decode ($octets)"
874 root 1.3 Convert the given locale-encoded octets into a perl string.
875 root 1.19 .ie n .IP "$term\->scr_xor_span ($beg_row, $beg_col\fR, \f(CW$end_row\fR, \f(CW$end_col\fR[, \f(CW$rstyle])" 4
876     .el .IP "$term\->scr_xor_span ($beg_row, \f(CW$beg_col\fR, \f(CW$end_row\fR, \f(CW$end_col\fR[, \f(CW$rstyle\fR])" 4
877     .IX Item "$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])"
878     XORs the rendition values in the given span with the provided value
879 root 1.25 (default: \f(CW\*(C`RS_RVid\*(C'\fR), which \fI\s-1MUST\s0 \s-1NOT\s0\fR contain font styles. Useful in
880     refresh hooks to provide effects similar to the selection.
881 root 1.19 .ie n .IP "$term\->scr_xor_rect ($beg_row, $beg_col\fR, \f(CW$end_row\fR, \f(CW$end_col\fR[, \f(CW$rstyle1\fR[, \f(CW$rstyle2]])" 4
882     .el .IP "$term\->scr_xor_rect ($beg_row, \f(CW$beg_col\fR, \f(CW$end_row\fR, \f(CW$end_col\fR[, \f(CW$rstyle1\fR[, \f(CW$rstyle2\fR]])" 4
883     .IX Item "$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])"
884     Similar to \f(CW\*(C`scr_xor_span\*(C'\fR, but xors a rectangle instead. Trailing
885     whitespace will additionally be xored with the \f(CW$rstyle2\fR, which defaults
886     to \f(CW\*(C`RS_RVid | RS_Uline\*(C'\fR, which removes reverse video again and underlines
887 root 1.25 it instead. Both styles \fI\s-1MUST\s0 \s-1NOT\s0\fR contain font styles.
888 root 1.19 .IP "$term\->scr_bell" 4
889     .IX Item "$term->scr_bell"
890     Ring the bell!
891 root 1.14 .IP "$term\->scr_add_lines ($string)" 4
892     .IX Item "$term->scr_add_lines ($string)"
893     Write the given text string to the screen, as if output by the application
894     running inside the terminal. It may not contain command sequences (escape
895     codes), but is free to use line feeds, carriage returns and tabs. The
896     string is a normal text string, not in locale-dependent encoding.
897     .Sp
898     Normally its not a good idea to use this function, as programs might be
899     confused by changes in cursor position or scrolling. Its useful inside a
900     \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
901     .IP "$term\->cmd_parse ($octets)" 4
902     .IX Item "$term->cmd_parse ($octets)"
903     Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
904     locale-specific encoding of the terminal and can contain command sequences
905     (escape codes) that will be interpreted.
906 root 1.3 .IP "$term\->tt_write ($octets)" 4
907     .IX Item "$term->tt_write ($octets)"
908     Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
909 root 1.6 pass characters instead of octets, you should convert your strings first
910     to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
911 root 1.19 .ie n .IP "$old_events = $term\->pty_ev_events ([$new_events])" 4
912     .el .IP "$old_events = \f(CW$term\fR\->pty_ev_events ([$new_events])" 4
913     .IX Item "$old_events = $term->pty_ev_events ([$new_events])"
914     Replaces the event mask of the pty watcher by the given event mask. Can
915     be used to suppress input and output handling to the pty/tty. See the
916     description of \f(CW\*(C`urxvt::timer\->events\*(C'\fR. Make sure to always restore
917     the previous value.
918 root 1.14 .ie n .IP "$windowid = $term\->parent" 4
919     .el .IP "$windowid = \f(CW$term\fR\->parent" 4
920     .IX Item "$windowid = $term->parent"
921     Return the window id of the toplevel window.
922     .ie n .IP "$windowid = $term\->vt" 4
923     .el .IP "$windowid = \f(CW$term\fR\->vt" 4
924     .IX Item "$windowid = $term->vt"
925     Return the window id of the terminal window.
926 root 1.29 .IP "$term\->vt_emask_add ($x_event_mask)" 4
927     .IX Item "$term->vt_emask_add ($x_event_mask)"
928     Adds the specified events to the vt event mask. Useful e.g. when you want
929     to receive pointer events all the times:
930     .Sp
931     .Vb 1
932     \& $term->vt_emask_add (urxvt::PointerMotionMask);
933     .Ve
934 root 1.13 .ie n .IP "$window_width = $term\->width" 4
935     .el .IP "$window_width = \f(CW$term\fR\->width" 4
936     .IX Item "$window_width = $term->width"
937 root 1.6 .PD 0
938 root 1.13 .ie n .IP "$window_height = $term\->height" 4
939     .el .IP "$window_height = \f(CW$term\fR\->height" 4
940     .IX Item "$window_height = $term->height"
941     .ie n .IP "$font_width = $term\->fwidth" 4
942     .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
943     .IX Item "$font_width = $term->fwidth"
944     .ie n .IP "$font_height = $term\->fheight" 4
945     .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
946     .IX Item "$font_height = $term->fheight"
947     .ie n .IP "$font_ascent = $term\->fbase" 4
948     .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
949     .IX Item "$font_ascent = $term->fbase"
950     .ie n .IP "$terminal_rows = $term\->nrow" 4
951     .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
952     .IX Item "$terminal_rows = $term->nrow"
953     .ie n .IP "$terminal_columns = $term\->ncol" 4
954     .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
955     .IX Item "$terminal_columns = $term->ncol"
956     .ie n .IP "$has_focus = $term\->focus" 4
957     .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
958     .IX Item "$has_focus = $term->focus"
959     .ie n .IP "$is_mapped = $term\->mapped" 4
960     .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
961     .IX Item "$is_mapped = $term->mapped"
962     .ie n .IP "$max_scrollback = $term\->saveLines" 4
963     .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
964     .IX Item "$max_scrollback = $term->saveLines"
965     .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
966     .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
967     .IX Item "$nrow_plus_saveLines = $term->total_rows"
968 root 1.30 .ie n .IP "$topmost_scrollback_row = $term\->top_row" 4
969     .el .IP "$topmost_scrollback_row = \f(CW$term\fR\->top_row" 4
970     .IX Item "$topmost_scrollback_row = $term->top_row"
971 root 1.6 .PD
972 root 1.13 Return various integers describing terminal characteristics.
973 root 1.22 .ie n .IP "$x_display = $term\->display_id" 4
974     .el .IP "$x_display = \f(CW$term\fR\->display_id" 4
975     .IX Item "$x_display = $term->display_id"
976     Return the \s-1DISPLAY\s0 used by rxvt\-unicode.
977 root 1.19 .ie n .IP "$lc_ctype = $term\->locale" 4
978     .el .IP "$lc_ctype = \f(CW$term\fR\->locale" 4
979     .IX Item "$lc_ctype = $term->locale"
980     Returns the \s-1LC_CTYPE\s0 category string used by this rxvt\-unicode.
981 root 1.22 .ie n .IP "$env = $term\->env" 4
982     .el .IP "$env = \f(CW$term\fR\->env" 4
983     .IX Item "$env = $term->env"
984     Returns a copy of the environment in effect for the terminal as a hashref
985     similar to \f(CW\*(C`\e%ENV\*(C'\fR.
986 root 1.15 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
987     .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
988     .IX Item "$modifiermask = $term->ModLevel3Mask"
989     .PD 0
990     .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
991     .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
992     .IX Item "$modifiermask = $term->ModMetaMask"
993     .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
994     .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
995     .IX Item "$modifiermask = $term->ModNumLockMask"
996     .PD
997     Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
998     AltGr), the meta key (often Alt) and the num lock key, if applicable.
999 root 1.6 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
1000     .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
1001     .IX Item "$view_start = $term->view_start ([$newvalue])"
1002 root 1.30 Returns the row number of the topmost displayed line. Maximum value is
1003     \&\f(CW0\fR, which displays the normal terminal contents. Lower values scroll
1004 root 1.6 this many lines into the scrollback buffer.
1005     .IP "$term\->want_refresh" 4
1006     .IX Item "$term->want_refresh"
1007     Requests a screen refresh. At the next opportunity, rxvt-unicode will
1008     compare the on-screen display with its stored representation. If they
1009     differ, it redraws the differences.
1010     .Sp
1011     Used after changing terminal contents to display them.
1012     .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
1013     .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
1014     .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
1015     Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
1016     is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
1017     terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
1018 root 1.9 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
1019     is requested.
1020 root 1.6 .Sp
1021     If \f(CW$new_text\fR is specified, it will replace characters in the current
1022     line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
1023 root 1.8 to replace only parts of a line. The font index in the rendition will
1024 root 1.6 automatically be updated.
1025     .Sp
1026     \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
1027     than one cell when displayed are padded with urxvt::NOCHAR characters
1028     (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
1029     that do not fit into the normal tetx encoding will be replaced with
1030     characters in the private use area.
1031     .Sp
1032     You have to obey this encoding when changing text. The advantage is
1033     that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
1034     characters.
1035     .Sp
1036     The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
1037     can be used to convert normal strings into this encoding and vice versa.
1038     .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
1039     .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
1040     .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
1041     Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
1042     bitsets. Rendition bitsets contain information about colour, font, font
1043     styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
1044     .Sp
1045     When setting rendition, the font mask will be ignored.
1046     .Sp
1047 root 1.8 See the section on \s-1RENDITION\s0, above.
1048 root 1.6 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
1049     .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
1050     .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
1051 root 1.9 Returns the number of screen cells that are in use (\*(L"the line
1052     length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
1053     line is joined with the following one.
1054     .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
1055     .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
1056     .IX Item "$bool = $term->is_longer ($row_number)"
1057     Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
1058     joined with the following row), which means all characters are in use
1059     and it is continued on the next row (and possibly a continuation of the
1060     previous row(s)).
1061     .ie n .IP "$line = $term\->line ($row_number)" 4
1062     .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
1063     .IX Item "$line = $term->line ($row_number)"
1064     Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
1065     about the logical line that row \f(CW$row_number\fR is part of. It supports the
1066     following methods:
1067     .RS 4
1068 root 1.14 .ie n .IP "$text = $line\->t ([$new_text])" 4
1069     .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
1070     .IX Item "$text = $line->t ([$new_text])"
1071     Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
1072     .ie n .IP "$rend = $line\->r ([$new_rend])" 4
1073     .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
1074     .IX Item "$rend = $line->r ([$new_rend])"
1075     Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
1076 root 1.9 .ie n .IP "$length = $line\->l" 4
1077     .el .IP "$length = \f(CW$line\fR\->l" 4
1078     .IX Item "$length = $line->l"
1079     Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
1080     .ie n .IP "$rownum = $line\->beg" 4
1081     .el .IP "$rownum = \f(CW$line\fR\->beg" 4
1082     .IX Item "$rownum = $line->beg"
1083     .PD 0
1084     .ie n .IP "$rownum = $line\->end" 4
1085     .el .IP "$rownum = \f(CW$line\fR\->end" 4
1086     .IX Item "$rownum = $line->end"
1087     .PD
1088     Return the row number of the first/last row of the line, respectively.
1089     .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
1090     .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
1091     .IX Item "$offset = $line->offset_of ($row, $col)"
1092     Returns the character offset of the given row|col pair within the logical
1093 root 1.25 line. Works for rows outside the line, too, and returns corresponding
1094     offsets outside the string.
1095 root 1.9 .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
1096     .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
1097     .IX Item "($row, $col) = $line->coord_of ($offset)"
1098     Translates a string offset into terminal coordinates again.
1099     .RE
1100     .RS 4
1101     .RE
1102 root 1.17 .ie n .IP "$text = $term\fR\->special_encode \f(CW$string" 4
1103     .el .IP "$text = \f(CW$term\fR\->special_encode \f(CW$string\fR" 4
1104     .IX Item "$text = $term->special_encode $string"
1105 root 1.6 Converts a perl string into the special encoding used by rxvt\-unicode,
1106     where one character corresponds to one screen cell. See
1107     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
1108     .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
1109     .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
1110     .IX Item "$string = $term->special_decode $text"
1111     Converts rxvt-unicodes text reprsentation into a perl string. See
1112     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
1113 root 1.17 .ie n .IP "$success = $term\fR\->grab_button ($button, \f(CW$modifiermask)" 4
1114     .el .IP "$success = \f(CW$term\fR\->grab_button ($button, \f(CW$modifiermask\fR)" 4
1115     .IX Item "$success = $term->grab_button ($button, $modifiermask)"
1116 root 1.18 Registers a synchronous button grab. See the XGrabButton manpage.
1117 root 1.17 .ie n .IP "$success = $term\fR\->grab ($eventtime[, \f(CW$sync])" 4
1118     .el .IP "$success = \f(CW$term\fR\->grab ($eventtime[, \f(CW$sync\fR])" 4
1119     .IX Item "$success = $term->grab ($eventtime[, $sync])"
1120     Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1121     synchronous (\f(CW$sync\fR is true). Also remembers the grab timestampe.
1122     .IP "$term\->allow_events_async" 4
1123     .IX Item "$term->allow_events_async"
1124     Calls XAllowEvents with AsyncBoth for the most recent grab.
1125     .IP "$term\->allow_events_sync" 4
1126     .IX Item "$term->allow_events_sync"
1127     Calls XAllowEvents with SyncBoth for the most recent grab.
1128     .IP "$term\->allow_events_replay" 4
1129     .IX Item "$term->allow_events_replay"
1130     Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1131     recent grab.
1132     .IP "$term\->ungrab" 4
1133     .IX Item "$term->ungrab"
1134     Calls XUngrab for the most recent grab. Is called automatically on
1135     evaluation errors, as it is better to lose the grab in the error case as
1136     the session.
1137 root 1.15 .ie n .Sh "The ""urxvt::popup"" Class"
1138     .el .Sh "The \f(CWurxvt::popup\fP Class"
1139     .IX Subsection "The urxvt::popup Class"
1140 root 1.21 .IP "$popup\->add_title ($title)" 4
1141     .IX Item "$popup->add_title ($title)"
1142     Adds a non-clickable title to the popup.
1143     .IP "$popup\->add_separator ([$sepchr])" 4
1144     .IX Item "$popup->add_separator ([$sepchr])"
1145     Creates a separator, optionally using the character given as \f(CW$sepchr\fR.
1146     .ie n .IP "$popup\->add_button ($text, $cb)" 4
1147     .el .IP "$popup\->add_button ($text, \f(CW$cb\fR)" 4
1148     .IX Item "$popup->add_button ($text, $cb)"
1149     Adds a clickable button to the popup. \f(CW$cb\fR is called whenever it is
1150     selected.
1151     .ie n .IP "$popup\->add_toggle ($text, $cb\fR, \f(CW$initial_value)" 4
1152     .el .IP "$popup\->add_toggle ($text, \f(CW$cb\fR, \f(CW$initial_value\fR)" 4
1153     .IX Item "$popup->add_toggle ($text, $cb, $initial_value)"
1154     Adds a toggle/checkbox item to the popup. Teh callback gets called
1155     whenever it gets toggled, with a boolean indicating its value as its first
1156     argument.
1157     .IP "$popup\->show" 4
1158     .IX Item "$popup->show"
1159     Displays the popup (which is initially hidden).
1160 root 1.1 .ie n .Sh "The ""urxvt::timer"" Class"
1161     .el .Sh "The \f(CWurxvt::timer\fP Class"
1162     .IX Subsection "The urxvt::timer Class"
1163     This class implements timer watchers/events. Time is represented as a
1164     fractional number of seconds since the epoch. Example:
1165 root 1.23 .PP
1166 root 1.8 .Vb 8
1167     \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1168 root 1.1 \& $term->{timer} = urxvt::timer
1169     \& ->new
1170 root 1.8 \& ->interval (1)
1171 root 1.1 \& ->cb (sub {
1172 root 1.8 \& $term->{overlay}->set (0, 0,
1173     \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1174 root 1.1 \& });
1175     .Ve
1176     .IP "$timer = new urxvt::timer" 4
1177     .IX Item "$timer = new urxvt::timer"
1178 root 1.8 Create a new timer object in started state. It is scheduled to fire
1179     immediately.
1180 root 1.1 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
1181     .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
1182     .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
1183     Set the callback to be called when the timer triggers.
1184     .ie n .IP "$tstamp = $timer\->at" 4
1185     .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
1186     .IX Item "$tstamp = $timer->at"
1187     Return the time this watcher will fire next.
1188     .ie n .IP "$timer = $timer\->set ($tstamp)" 4
1189     .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
1190     .IX Item "$timer = $timer->set ($tstamp)"
1191     Set the time the event is generated to \f(CW$tstamp\fR.
1192 root 1.8 .ie n .IP "$timer = $timer\->interval ($interval)" 4
1193     .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
1194     .IX Item "$timer = $timer->interval ($interval)"
1195     Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
1196     stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
1197     is automatically rescheduled at the given intervals.
1198 root 1.1 .ie n .IP "$timer = $timer\->start" 4
1199     .el .IP "$timer = \f(CW$timer\fR\->start" 4
1200     .IX Item "$timer = $timer->start"
1201     Start the timer.
1202     .ie n .IP "$timer = $timer\->start ($tstamp)" 4
1203     .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
1204     .IX Item "$timer = $timer->start ($tstamp)"
1205     Set the event trigger time to \f(CW$tstamp\fR and start the timer.
1206     .ie n .IP "$timer = $timer\->stop" 4
1207     .el .IP "$timer = \f(CW$timer\fR\->stop" 4
1208     .IX Item "$timer = $timer->stop"
1209     Stop the timer.
1210     .ie n .Sh "The ""urxvt::iow"" Class"
1211     .el .Sh "The \f(CWurxvt::iow\fP Class"
1212     .IX Subsection "The urxvt::iow Class"
1213     This class implements io watchers/events. Example:
1214 root 1.23 .PP
1215 root 1.1 .Vb 12
1216     \& $term->{socket} = ...
1217     \& $term->{iow} = urxvt::iow
1218     \& ->new
1219     \& ->fd (fileno $term->{socket})
1220 root 1.19 \& ->events (urxvt::EVENT_READ)
1221 root 1.1 \& ->start
1222     \& ->cb (sub {
1223     \& my ($iow, $revents) = @_;
1224     \& # $revents must be 1 here, no need to check
1225     \& sysread $term->{socket}, my $buf, 8192
1226     \& or end-of-file;
1227     \& });
1228     .Ve
1229     .IP "$iow = new urxvt::iow" 4
1230     .IX Item "$iow = new urxvt::iow"
1231     Create a new io watcher object in stopped state.
1232     .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
1233     .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
1234     .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
1235     Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
1236     is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
1237     .ie n .IP "$iow = $iow\->fd ($fd)" 4
1238     .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
1239     .IX Item "$iow = $iow->fd ($fd)"
1240     Set the filedescriptor (not handle) to watch.
1241     .ie n .IP "$iow = $iow\->events ($eventmask)" 4
1242     .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
1243     .IX Item "$iow = $iow->events ($eventmask)"
1244 root 1.19 Set the event mask to watch. The only allowed values are
1245     \&\f(CW\*(C`urxvt::EVENT_READ\*(C'\fR and \f(CW\*(C`urxvt::EVENT_WRITE\*(C'\fR, which might be ORed
1246     together, or \f(CW\*(C`urxvt::EVENT_NONE\*(C'\fR.
1247 root 1.1 .ie n .IP "$iow = $iow\->start" 4
1248     .el .IP "$iow = \f(CW$iow\fR\->start" 4
1249     .IX Item "$iow = $iow->start"
1250     Start watching for requested events on the given handle.
1251     .ie n .IP "$iow = $iow\->stop" 4
1252     .el .IP "$iow = \f(CW$iow\fR\->stop" 4
1253     .IX Item "$iow = $iow->stop"
1254     Stop watching for events on the given filehandle.
1255 root 1.2 .SH "ENVIRONMENT"
1256     .IX Header "ENVIRONMENT"
1257     .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
1258     .IX Subsection "URXVT_PERL_VERBOSITY"
1259     This variable controls the verbosity level of the perl extension. Higher
1260     numbers indicate more verbose output.
1261 root 1.17 .IP "== 0 \- fatal messages" 4
1262     .IX Item "== 0 - fatal messages"
1263 root 1.2 .PD 0
1264 root 1.17 .IP ">= 3 \- script loading and management" 4
1265     .IX Item ">= 3 - script loading and management"
1266 root 1.25 .IP ">=10 \- all called hooks" 4
1267     .IX Item ">=10 - all called hooks"
1268     .IP ">=11 \- hook reutrn values" 4
1269     .IX Item ">=11 - hook reutrn values"
1270 root 1.2 .PD
1271 root 1.1 .SH "AUTHOR"
1272     .IX Header "AUTHOR"
1273     .Vb 2
1274     \& Marc Lehmann <pcg@goof.com>
1275     \& http://software.schmorp.de/pkg/rxvt-unicode
1276     .Ve