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Revision: 1.34
Committed: Thu Jan 19 19:26:31 2006 UTC (18 years, 5 months ago) by root
Branch: MAIN
CVS Tags: rel-7_1
Changes since 1.33: +74 -18 lines
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File Contents

# Content
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129 .\" ========================================================================
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131 .IX Title "rxvt 3"
132 .TH rxvt 3 "2006-01-19" "7.1" "RXVT-UNICODE"
133 .SH "NAME"
134 @@RXVT_NAME@@perl \- rxvt\-unicode's embedded perl interpreter
135 .SH "SYNOPSIS"
136 .IX Header "SYNOPSIS"
137 .Vb 1
138 \& # create a file grab_test in $HOME:
139 .Ve
140 .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 \& # start a @@RXVT_NAME@@ using it:
150 .Ve
151 .PP
152 .Vb 1
153 \& @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
154 .Ve
155 .SH "DESCRIPTION"
156 .IX Header "DESCRIPTION"
157 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 .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 .PP
163 Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
164 scripts will be shared (but not enabled) for all terminals.
165 .SH "PREPACKAGED EXTENSIONS"
166 .IX Header "PREPACKAGED EXTENSIONS"
167 This section describes the extensions delivered with this release. You can
168 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 .IP "selection (enabled by default)" 4
176 .IX Item "selection (enabled by default)"
177 (More) intelligent selection. This extension tries to be more intelligent
178 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 .Sp
186 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 This extension also offers following bindable keyboard commands:
209 .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 .IP "option-popup (enabled by default)" 4
221 .IX Item "option-popup (enabled by default)"
222 Binds a popup menu to Ctrl\-Button2 that lets you toggle (some) options at
223 runtime.
224 .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 text into various other formats/action (such as uri unescaping, perl
228 evalution, web-browser starting etc.), depending on content.
229 .Sp
230 Other extensions can extend this popup menu by pushing a code reference
231 onto \f(CW\*(C`@{ $term\-\*(C'\fR{selection_popup_hook} }>, that is called whenever the
232 popup is displayed.
233 .Sp
234 It's sole argument is the popup menu, which can be modified. The selection
235 is in \f(CW$_\fR, which can be used to decide wether to add something or not.
236 It should either return nothing or a string and a code reference. The
237 string will be used as button text and the code reference will be called
238 when the button gets activated and should transform \f(CW$_\fR.
239 .Sp
240 The following will add an entry \f(CW\*(C`a to b\*(C'\fR that transforms all \f(CW\*(C`a\*(C'\fRs in
241 the selection to \f(CW\*(C`b\*(C'\fRs, but only if the selection currently contains any
242 \&\f(CW\*(C`a\*(C'\fRs:
243 .Sp
244 .Vb 4
245 \& push @{ $self->{term}{selection_popup_hook} }, sub {
246 \& /a/ ? ("a to be" => sub { s/a/b/g }
247 \& : ()
248 \& };
249 .Ve
250 .IP "searchable\-scrollback<hotkey> (enabled by default)" 4
251 .IX Item "searchable-scrollback<hotkey> (enabled by default)"
252 Adds regex search functionality to the scrollback buffer, triggered
253 by a hotkey (default: \f(CW\*(C`M\-s\*(C'\fR). While in search mode, normal terminal
254 input/output is suspended and a regex is displayed at the bottom of the
255 screen.
256 .Sp
257 Inputting characters appends them to the regex and continues incremental
258 search. \f(CW\*(C`BackSpace\*(C'\fR removes a character from the regex, \f(CW\*(C`Up\*(C'\fR and \f(CW\*(C`Down\*(C'\fR
259 search upwards/downwards in the scrollback buffer, \f(CW\*(C`End\*(C'\fR jumps to the
260 bottom. \f(CW\*(C`Escape\*(C'\fR leaves search mode and returns to the point where search
261 was started, while \f(CW\*(C`Enter\*(C'\fR or \f(CW\*(C`Return\*(C'\fR stay at the current position and
262 additionally stores the first match in the current line into the primary
263 selection.
264 .IP "selection-autotransform" 4
265 .IX Item "selection-autotransform"
266 This selection allows you to do automatic transforms on a selection
267 whenever a selection is made.
268 .Sp
269 It works by specifying perl snippets (most useful is a single \f(CW\*(C`s///\*(C'\fR
270 operator) that modify \f(CW$_\fR as resources:
271 .Sp
272 .Vb 3
273 \& URxvt.selection-autotransform.0: transform
274 \& URxvt.selection-autotransform.1: transform
275 \& ...
276 .Ve
277 .Sp
278 For example, the following will transform selections of the form
279 \&\f(CW\*(C`filename:number\*(C'\fR, often seen in compiler messages, into \f(CW\*(C`vi +$filename
280 $word\*(C'\fR:
281 .Sp
282 .Vb 1
283 \& URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\e\ed+):?$/vi +$2 \e\eQ$1\e\eE\e\ex0d/
284 .Ve
285 .Sp
286 And this example matches the same,but replaces it with vi-commands you can
287 paste directly into your (vi :) editor:
288 .Sp
289 .Vb 1
290 \& URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\e\ed+):?$/:e \e\eQ$1\e\eE\e\ex0d:$2\e\ex0d/
291 .Ve
292 .Sp
293 Of course, this can be modified to suit your needs and your editor :)
294 .Sp
295 To expand the example above to typical perl error messages (\*(L"\s-1XXX\s0 at
296 \&\s-1FILENAME\s0 line \s-1YYY\s0.\*(R"), you need a slightly more elaborate solution:
297 .Sp
298 .Vb 2
299 \& URxvt.selection.pattern-0: ( at .*? line \e\ed+[,.])
300 \& URxvt.selection-autotransform.0: s/^ at (.*?) line (\e\ed+)[,.]$/:e \e\eQ$1\eE\e\ex0d:$2\e\ex0d/
301 .Ve
302 .Sp
303 The first line tells the selection code to treat the unchanging part of
304 every error message as a selection pattern, and the second line transforms
305 the message into vi commands to load the file.
306 .IP "mark-urls" 4
307 .IX Item "mark-urls"
308 Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls and
309 make them clickable. When middle\-clicked, the program specified in the
310 resource \f(CW\*(C`urlLauncher\*(C'\fR (default \f(CW\*(C`x\-www\-browser\*(C'\fR) will be started with
311 the \s-1URL\s0 as first argument.
312 .IP "automove-background" 4
313 .IX Item "automove-background"
314 This is basically a one-line extension that dynamically changes the background pixmap offset
315 to the window position, in effect creating the same effect as pseudo transparency with
316 a custom pixmap. No scaling is supported in this mode. Exmaple:
317 .Sp
318 .Vb 1
319 \& @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
320 .Ve
321 .IP "block-graphics-to-ascii" 4
322 .IX Item "block-graphics-to-ascii"
323 A not very useful example of filtering all text output to the terminal,
324 by replacing all line-drawing characters (U+2500 .. U+259F) by a
325 similar-looking ascii character.
326 .IP "digital-clock" 4
327 .IX Item "digital-clock"
328 Displays a digital clock using the built-in overlay.
329 .IP "example-refresh-hooks" 4
330 .IX Item "example-refresh-hooks"
331 Displays a very simple digital clock in the upper right corner of the
332 window. Illustrates overwriting the refresh callbacks to create your own
333 overlays or changes.
334 .IP "selection-pastebin" 4
335 .IX Item "selection-pastebin"
336 This is a little rarely useful extension that Uploads the selection as
337 textfile to a remote site (or does other things). (The implementation is
338 not currently secure for use in a multiuser environment as it writes to
339 \&\fI/tmp\fR directly.).
340 .Sp
341 It listens to the \f(CW\*(C`selection\-pastebin:remote\-pastebin\*(C'\fR keyboard command,
342 i.e.
343 .Sp
344 .Vb 1
345 \& URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
346 .Ve
347 .Sp
348 Pressing this combination runs a command with \f(CW\*(C`%\*(C'\fR replaced by the name of
349 the textfile. This command can be set via a resource:
350 .Sp
351 .Vb 1
352 \& URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
353 .Ve
354 .Sp
355 And the default is likely not useful to anybody but the few people around
356 here :)
357 .Sp
358 The name of the textfile is the hex encoded md5 sum of the selection, so
359 the same content should lead to the same filename.
360 .Sp
361 After a successful upload the selection will be replaced by the text given
362 in the \f(CW\*(C`selection\-pastebin\-url\*(C'\fR resource (again, the % is the placeholder
363 for the filename):
364 .Sp
365 .Vb 1
366 \& URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
367 .Ve
368 .SH "API DOCUMENTATION"
369 .IX Header "API DOCUMENTATION"
370 .Sh "General \s-1API\s0 Considerations"
371 .IX Subsection "General API Considerations"
372 All objects (such as terminals, time watchers etc.) are typical
373 reference-to-hash objects. The hash can be used to store anything you
374 like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
375 \&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and \fB\s-1MUST\s0 \s-1NOT\s0\fR be accessed or
376 modified).
377 .PP
378 When objects are destroyed on the \*(C+ side, the perl object hashes are
379 emptied, so its best to store related objects such as time watchers and
380 the like inside the terminal object so they get destroyed as soon as the
381 terminal is destroyed.
382 .PP
383 Argument names also often indicate the type of a parameter. Here are some
384 hints on what they mean:
385 .IP "$text" 4
386 .IX Item "$text"
387 Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
388 always represents one screen cell. See ROW_t for a discussion of this format.
389 .IP "$string" 4
390 .IX Item "$string"
391 A perl text string, with an emphasis on \fItext\fR. It can store all unicode
392 characters and is to be distinguished with text encoded in a specific
393 encoding (often locale\-specific) and binary data.
394 .IP "$octets" 4
395 .IX Item "$octets"
396 Either binary data or \- more common \- a text string encoded in a
397 locale-specific way.
398 .Sh "Extension Objects"
399 .IX Subsection "Extension Objects"
400 Very perl extension is a perl class. A separate perl object is created
401 for each terminal and each extension and passed as the first parameter to
402 hooks. So extensions can use their \f(CW$self\fR object without having to think
403 about other extensions, with the exception of methods and members that
404 begin with an underscore character \f(CW\*(C`_\*(C'\fR: these are reserved for internal
405 use.
406 .PP
407 Although it isn't a \f(CW\*(C`urxvt::term\*(C'\fR object, you can call all methods of the
408 \&\f(CW\*(C`urxvt::term\*(C'\fR class on this object.
409 .PP
410 It has the following methods and data members:
411 .ie n .IP "$urxvt_term = $self\->{term}" 4
412 .el .IP "$urxvt_term = \f(CW$self\fR\->{term}" 4
413 .IX Item "$urxvt_term = $self->{term}"
414 Returns the \f(CW\*(C`urxvt::term\*(C'\fR object associated with this instance of the
415 extension. This member \fImust not\fR be changed in any way.
416 .ie n .IP "$self\->enable ($hook_name => $cb\fR, [$hook_name => \f(CW$cb..])" 4
417 .el .IP "$self\->enable ($hook_name => \f(CW$cb\fR, [$hook_name => \f(CW$cb\fR..])" 4
418 .IX Item "$self->enable ($hook_name => $cb, [$hook_name => $cb..])"
419 Dynamically enable the given hooks (named without the \f(CW\*(C`on_\*(C'\fR prefix) for
420 this extension, replacing any previous hook. This is useful when you want
421 to overwrite time-critical hooks only temporarily.
422 .ie n .IP "$self\->disable ($hook_name[, $hook_name..])" 4
423 .el .IP "$self\->disable ($hook_name[, \f(CW$hook_name\fR..])" 4
424 .IX Item "$self->disable ($hook_name[, $hook_name..])"
425 Dynamically disable the given hooks.
426 .Sh "Hooks"
427 .IX Subsection "Hooks"
428 The following subroutines can be declared in extension files, and will be
429 called whenever the relevant event happens.
430 .PP
431 The first argument passed to them is an extension oject as described in
432 the in the \f(CW\*(C`Extension Objects\*(C'\fR section.
433 .PP
434 \&\fBAll\fR of these hooks must return a boolean value. If it is true, then the
435 event counts as being \fIconsumed\fR, and the invocation of other hooks is
436 skipped, and the relevant action might not be carried out by the \*(C+ code.
437 .PP
438 \&\fIWhen in doubt, return a false value (preferably \f(CI\*(C`()\*(C'\fI).\fR
439 .ie n .IP "on_init $term" 4
440 .el .IP "on_init \f(CW$term\fR" 4
441 .IX Item "on_init $term"
442 Called after a new terminal object has been initialized, but before
443 windows are created or the command gets run. Most methods are unsafe to
444 call or deliver senseless data, as terminal size and other characteristics
445 have not yet been determined. You can safely query and change resources,
446 though.
447 .ie n .IP "on_reset $term" 4
448 .el .IP "on_reset \f(CW$term\fR" 4
449 .IX Item "on_reset $term"
450 Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
451 control sequences. Here is where you can react on changes to size-related
452 variables.
453 .ie n .IP "on_start $term" 4
454 .el .IP "on_start \f(CW$term\fR" 4
455 .IX Item "on_start $term"
456 Called at the very end of initialisation of a new terminal, just before
457 returning to the mainloop.
458 .ie n .IP "on_child_start $term\fR, \f(CW$pid" 4
459 .el .IP "on_child_start \f(CW$term\fR, \f(CW$pid\fR" 4
460 .IX Item "on_child_start $term, $pid"
461 Called just after the child process has been \f(CW\*(C`fork\*(C'\fRed.
462 .ie n .IP "on_child_exit $term\fR, \f(CW$status" 4
463 .el .IP "on_child_exit \f(CW$term\fR, \f(CW$status\fR" 4
464 .IX Item "on_child_exit $term, $status"
465 Called just after the child process has exited. \f(CW$status\fR is the status
466 from \f(CW\*(C`waitpid\*(C'\fR.
467 .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
468 .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
469 .IX Item "on_sel_make $term, $eventtime"
470 Called whenever a selection has been made by the user, but before the
471 selection text is copied, so changes to the beginning, end or type of the
472 selection will be honored.
473 .Sp
474 Returning a true value aborts selection making by urxvt, in which case you
475 have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
476 .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
477 .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
478 .IX Item "on_sel_grab $term, $eventtime"
479 Called whenever a selection has been copied, but before the selection is
480 requested from the server. The selection text can be queried and changed
481 by calling \f(CW\*(C`$term\->selection\*(C'\fR.
482 .Sp
483 Returning a true value aborts selection grabbing. It will still be hilighted.
484 .ie n .IP "on_sel_extend $term" 4
485 .el .IP "on_sel_extend \f(CW$term\fR" 4
486 .IX Item "on_sel_extend $term"
487 Called whenever the user tries to extend the selection (e.g. with a double
488 click) and is either supposed to return false (normal operation), or
489 should extend the selection itelf and return true to suppress the built-in
490 processing. This can happen multiple times, as long as the callback
491 returns true, it will be called on every further click by the user and is
492 supposed to enlarge the selection more and more, if possible.
493 .Sp
494 See the \fIselection\fR example extension.
495 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
496 .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
497 .IX Item "on_view_change $term, $offset"
498 Called whenever the view offset changes, i..e the user or program
499 scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
500 show this many lines of scrollback.
501 .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
502 .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
503 .IX Item "on_scroll_back $term, $lines, $saved"
504 Called whenever lines scroll out of the terminal area into the scrollback
505 buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
506 than the scroll back buffer or the terminal.
507 .Sp
508 It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
509 \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
510 number of lines that will be in the scrollback buffer.
511 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
512 .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
513 .IX Item "on_osc_seq $term, $string"
514 Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
515 operating system command) is processed. Cursor position and other state
516 information is up-to-date when this happens. For interoperability, the
517 string should start with the extension name and a colon, to distinguish
518 it from commands for other extensions, and this might be enforced in the
519 future.
520 .Sp
521 Be careful not ever to trust (in a security sense) the data you receive,
522 as its source can not easily be controleld (e\-mail content, messages from
523 other users on the same system etc.).
524 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
525 .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
526 .IX Item "on_add_lines $term, $string"
527 Called whenever text is about to be output, with the text as argument. You
528 can filter/change and output the text yourself by returning a true value
529 and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
530 might be very slow, however, as your hook is called for \fBall\fR text being
531 output.
532 .ie n .IP "on_tt_write $term\fR, \f(CW$octets" 4
533 .el .IP "on_tt_write \f(CW$term\fR, \f(CW$octets\fR" 4
534 .IX Item "on_tt_write $term, $octets"
535 Called whenever some data is written to the tty/pty and can be used to
536 suppress or filter tty input.
537 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
538 .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
539 .IX Item "on_line_update $term, $row"
540 Called whenever a line was updated or changed. Can be used to filter
541 screen output (e.g. underline urls or other useless stuff). Only lines
542 that are being shown will be filtered, and, due to performance reasons,
543 not always immediately.
544 .Sp
545 The row number is always the topmost row of the line if the line spans
546 multiple rows.
547 .Sp
548 Please note that, if you change the line, then the hook might get called
549 later with the already-modified line (e.g. if unrelated parts change), so
550 you cannot just toggle rendition bits, but only set them.
551 .ie n .IP "on_refresh_begin $term" 4
552 .el .IP "on_refresh_begin \f(CW$term\fR" 4
553 .IX Item "on_refresh_begin $term"
554 Called just before the screen gets redrawn. Can be used for overlay
555 or similar effects by modify terminal contents in refresh_begin, and
556 restoring them in refresh_end. The built-in overlay and selection display
557 code is run after this hook, and takes precedence.
558 .ie n .IP "on_refresh_end $term" 4
559 .el .IP "on_refresh_end \f(CW$term\fR" 4
560 .IX Item "on_refresh_end $term"
561 Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
562 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
563 .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
564 .IX Item "on_keyboard_command $term, $string"
565 Called whenever the user presses a key combination that has a
566 \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
567 resource in the @@RXVT_NAME@@(1) manpage).
568 .ie n .IP "on_x_event $term\fR, \f(CW$event" 4
569 .el .IP "on_x_event \f(CW$term\fR, \f(CW$event\fR" 4
570 .IX Item "on_x_event $term, $event"
571 Called on every X event received on the vt window (and possibly other
572 windows). Should only be used as a last resort. Most event structure
573 members are not passed.
574 .ie n .IP "on_focus_in $term" 4
575 .el .IP "on_focus_in \f(CW$term\fR" 4
576 .IX Item "on_focus_in $term"
577 Called whenever the window gets the keyboard focus, before rxvt-unicode
578 does focus in processing.
579 .ie n .IP "on_focus_out $term" 4
580 .el .IP "on_focus_out \f(CW$term\fR" 4
581 .IX Item "on_focus_out $term"
582 Called wheneever the window loses keyboard focus, before rxvt-unicode does
583 focus out processing.
584 .ie n .IP "on_configure_notify $term\fR, \f(CW$event" 4
585 .el .IP "on_configure_notify \f(CW$term\fR, \f(CW$event\fR" 4
586 .IX Item "on_configure_notify $term, $event"
587 .PD 0
588 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets" 4
589 .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets\fR" 4
590 .IX Item "on_key_press $term, $event, $keysym, $octets"
591 .ie n .IP "on_key_release $term\fR, \f(CW$event\fR, \f(CW$keysym" 4
592 .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR" 4
593 .IX Item "on_key_release $term, $event, $keysym"
594 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
595 .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
596 .IX Item "on_button_press $term, $event"
597 .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
598 .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
599 .IX Item "on_button_release $term, $event"
600 .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
601 .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
602 .IX Item "on_motion_notify $term, $event"
603 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
604 .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
605 .IX Item "on_map_notify $term, $event"
606 .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
607 .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
608 .IX Item "on_unmap_notify $term, $event"
609 .PD
610 Called whenever the corresponding X event is received for the terminal If
611 the hook returns true, then the even will be ignored by rxvt\-unicode.
612 .Sp
613 The event is a hash with most values as named by Xlib (see the XEvent
614 manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
615 and column under the mouse cursor.
616 .Sp
617 \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
618 output, if any, in locale-specific encoding.
619 .Sp
620 subwindow.
621 .ie n .Sh "Variables in the ""urxvt"" Package"
622 .el .Sh "Variables in the \f(CWurxvt\fP Package"
623 .IX Subsection "Variables in the urxvt Package"
624 .IP "$urxvt::LIBDIR" 4
625 .IX Item "$urxvt::LIBDIR"
626 The rxvt-unicode library directory, where, among other things, the perl
627 modules and scripts are stored.
628 .ie n .IP "$urxvt::RESCLASS, $urxvt::RESCLASS" 4
629 .el .IP "$urxvt::RESCLASS, \f(CW$urxvt::RESCLASS\fR" 4
630 .IX Item "$urxvt::RESCLASS, $urxvt::RESCLASS"
631 The resource class and name rxvt-unicode uses to look up X resources.
632 .IP "$urxvt::RXVTNAME" 4
633 .IX Item "$urxvt::RXVTNAME"
634 The basename of the installed binaries, usually \f(CW\*(C`urxvt\*(C'\fR.
635 .IP "$urxvt::TERM" 4
636 .IX Item "$urxvt::TERM"
637 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
638 object, whenever a callback/hook is executing.
639 .ie n .Sh "Functions in the ""urxvt"" Package"
640 .el .Sh "Functions in the \f(CWurxvt\fP Package"
641 .IX Subsection "Functions in the urxvt Package"
642 .ie n .IP "urxvt::fatal $errormessage" 4
643 .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
644 .IX Item "urxvt::fatal $errormessage"
645 Fatally aborts execution with the given error message. Avoid at all
646 costs! The only time this is acceptable is when the terminal process
647 starts up.
648 .ie n .IP "urxvt::warn $string" 4
649 .el .IP "urxvt::warn \f(CW$string\fR" 4
650 .IX Item "urxvt::warn $string"
651 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
652 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
653 that calls this function.
654 .Sp
655 Using this function has the advantage that its output ends up in the
656 correct place, e.g. on stderr of the connecting urxvtc client.
657 .Sp
658 Messages have a size limit of 1023 bytes currently.
659 .IP "$time = urxvt::NOW" 4
660 .IX Item "$time = urxvt::NOW"
661 Returns the \*(L"current time\*(R" (as per the event loop).
662 .IP "urxvt::CurrentTime" 4
663 .IX Item "urxvt::CurrentTime"
664 .PD 0
665 .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
666 .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
667 .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
668 .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"
669 .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
670 .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"
671 .PD
672 Various constants for use in X calls and event processing.
673 .Sh "\s-1RENDITION\s0"
674 .IX Subsection "RENDITION"
675 Rendition bitsets contain information about colour, font, font styles and
676 similar information for each screen cell.
677 .PP
678 The following \*(L"macros\*(R" deal with changes in rendition sets. You should
679 never just create a bitset, you should always modify an existing one,
680 as they contain important information required for correct operation of
681 rxvt\-unicode.
682 .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
683 .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
684 Returns the default rendition, as used when the terminal is starting up or
685 being reset. Useful as a base to start when creating renditions.
686 .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
687 .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
688 Return the rendition mask used for overlays by default.
689 .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
690 .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
691 Return the bit that enabled bold, italic, blink, reverse-video and
692 underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
693 the bitset.
694 .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
695 .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
696 .IX Item "$foreground = urxvt::GET_BASEFG $rend"
697 .PD 0
698 .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
699 .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
700 .IX Item "$background = urxvt::GET_BASEBG $rend"
701 .PD
702 Return the foreground/background colour index, respectively.
703 .ie n .IP "$rend = urxvt::SET_FGCOLOR $rend\fR, \f(CW$new_colour" 4
704 .el .IP "$rend = urxvt::SET_FGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
705 .IX Item "$rend = urxvt::SET_FGCOLOR $rend, $new_colour"
706 .PD 0
707 .ie n .IP "$rend = urxvt::SET_BGCOLOR $rend\fR, \f(CW$new_colour" 4
708 .el .IP "$rend = urxvt::SET_BGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
709 .IX Item "$rend = urxvt::SET_BGCOLOR $rend, $new_colour"
710 .PD
711 Replace the foreground/background colour in the rendition mask with the
712 specified one.
713 .ie n .IP "$value = urxvt::GET_CUSTOM $rend" 4
714 .el .IP "$value = urxvt::GET_CUSTOM \f(CW$rend\fR" 4
715 .IX Item "$value = urxvt::GET_CUSTOM $rend"
716 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
717 extensions. They can be set and changed as you like and are initially
718 zero.
719 .ie n .IP "$rend = urxvt::SET_CUSTOM $rend\fR, \f(CW$new_value" 4
720 .el .IP "$rend = urxvt::SET_CUSTOM \f(CW$rend\fR, \f(CW$new_value\fR" 4
721 .IX Item "$rend = urxvt::SET_CUSTOM $rend, $new_value"
722 Change the custom value.
723 .ie n .Sh "The ""urxvt::anyevent"" Class"
724 .el .Sh "The \f(CWurxvt::anyevent\fP Class"
725 .IX Subsection "The urxvt::anyevent Class"
726 The sole purpose of this class is to deliver an interface to the
727 \&\f(CW\*(C`AnyEvent\*(C'\fR module \- any module using it will work inside urxvt without
728 further programming. The only exception is that you cannot wait on
729 condition variables, but non-blocking condvar use is ok. What this means
730 is that you cannot use blocking APIs, but the non-blocking variant should
731 work.
732 .ie n .Sh "The ""urxvt::term"" Class"
733 .el .Sh "The \f(CWurxvt::term\fP Class"
734 .IX Subsection "The urxvt::term Class"
735 .ie n .IP "$term = new urxvt::term $envhashref\fR, \f(CW$rxvtname, [arg...]" 4
736 .el .IP "$term = new urxvt::term \f(CW$envhashref\fR, \f(CW$rxvtname\fR, [arg...]" 4
737 .IX Item "$term = new urxvt::term $envhashref, $rxvtname, [arg...]"
738 Creates a new terminal, very similar as if you had started it with system
739 \&\f(CW\*(C`$rxvtname, arg...\*(C'\fR. \f(CW$envhashref\fR must be a reference to a \f(CW%ENV\fR\-like
740 hash which defines the environment of the new terminal.
741 .Sp
742 Croaks (and probably outputs an error message) if the new instance
743 couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new instance didn't
744 initialise perl, and the terminal object otherwise. The \f(CW\*(C`init\*(C'\fR and
745 \&\f(CW\*(C`start\*(C'\fR hooks will be called during this call.
746 .IP "$term\->destroy" 4
747 .IX Item "$term->destroy"
748 Destroy the terminal object (close the window, free resources
749 etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
750 watchers (timers, io watchers) are still active.
751 .ie n .IP "$term\->exec_async ($cmd[, @args])" 4
752 .el .IP "$term\->exec_async ($cmd[, \f(CW@args\fR])" 4
753 .IX Item "$term->exec_async ($cmd[, @args])"
754 Works like the combination of the \f(CW\*(C`fork\*(C'\fR/\f(CW\*(C`exec\*(C'\fR builtins, which executes
755 (\*(L"starts\*(R") programs in the background. This function takes care of setting
756 the user environment before exec'ing the command (e.g. \f(CW\*(C`PATH\*(C'\fR) and should
757 be preferred over explicit calls to \f(CW\*(C`exec\*(C'\fR or \f(CW\*(C`system\*(C'\fR.
758 .Sp
759 Returns the pid of the subprocess or \f(CW\*(C`undef\*(C'\fR on error.
760 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
761 .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
762 .IX Item "$isset = $term->option ($optval[, $set])"
763 Returns true if the option specified by \f(CW$optval\fR is enabled, and
764 optionally change it. All option values are stored by name in the hash
765 \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
766 .Sp
767 Here is a a likely non-exhaustive list of option names, please see the
768 source file \fI/src/optinc.h\fR to see the actual list:
769 .Sp
770 .Vb 6
771 \& borderLess console cursorBlink cursorUnderline hold iconic insecure
772 \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
773 \& override-redirect pastableTabs pointerBlank reverseVideo scrollBar
774 \& scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
775 \& scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
776 \& transparent tripleclickwords utmpInhibit visualBell
777 .Ve
778 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
779 .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
780 .IX Item "$value = $term->resource ($name[, $newval])"
781 Returns the current resource value associated with a given name and
782 optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
783 hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
784 .Sp
785 The new value must be properly encoded to a suitable character encoding
786 before passing it to this method. Similarly, the returned value may need
787 to be converted from the used encoding to text.
788 .Sp
789 Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
790 as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
791 likely change).
792 .Sp
793 Please note that resource strings will currently only be freed when the
794 terminal is destroyed, so changing options frequently will eat memory.
795 .Sp
796 Here is a a likely non-exhaustive list of resource names, not all of which
797 are supported in every build, please see the source file \fI/src/rsinc.h\fR
798 to see the actual list:
799 .Sp
800 .Vb 13
801 \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
802 \& borderLess color cursorBlink cursorUnderline cutchars delete_key
803 \& display_name embed ext_bwidth fade font geometry hold iconName
804 \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
805 \& italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
806 \& mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
807 \& perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
808 \& preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
809 \& scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
810 \& scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
811 \& secondaryScreen secondaryScroll selectstyle shade term_name title
812 \& transient_for transparent transparent_all tripleclickwords utmpInhibit
813 \& visualBell
814 .Ve
815 .ie n .IP "$value = $term\->x_resource ($pattern)" 4
816 .el .IP "$value = \f(CW$term\fR\->x_resource ($pattern)" 4
817 .IX Item "$value = $term->x_resource ($pattern)"
818 Returns the X\-Resource for the given pattern, excluding the program or
819 class name, i.e. \f(CW\*(C`$term\->x_resource ("boldFont")\*(C'\fR should return the
820 same value as used by this instance of rxvt\-unicode. Returns \f(CW\*(C`undef\*(C'\fR if no
821 resource with that pattern exists.
822 .Sp
823 This method should only be called during the \f(CW\*(C`on_start\*(C'\fR hook, as there is
824 only one resource database per display, and later invocations might return
825 the wrong resources.
826 .ie n .IP "$success = $term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string)" 4
827 .el .IP "$success = \f(CW$term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string\fR)" 4
828 .IX Item "$success = $term->parse_keysym ($keysym_spec, $command_string)"
829 Adds a keymap translation exactly as specified via a resource. See the
830 \&\f(CW\*(C`keysym\*(C'\fR resource in the @@RXVT_NAME@@(1) manpage.
831 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
832 .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
833 .IX Item "$rend = $term->rstyle ([$new_rstyle])"
834 Return and optionally change the current rendition. Text that is output by
835 the terminal application will use this style.
836 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
837 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
838 .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
839 Return the current coordinates of the text cursor position and optionally
840 set it (which is usually bad as applications don't expect that).
841 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
842 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
843 .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
844 .PD 0
845 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
846 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
847 .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
848 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
849 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
850 .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
851 .PD
852 Return the current values of the selection mark, begin or end positions,
853 and optionally set them to new values.
854 .ie n .IP "$term\->selection_make ($eventtime[, $rectangular])" 4
855 .el .IP "$term\->selection_make ($eventtime[, \f(CW$rectangular\fR])" 4
856 .IX Item "$term->selection_make ($eventtime[, $rectangular])"
857 Tries to make a selection as set by \f(CW\*(C`selection_beg\*(C'\fR and
858 \&\f(CW\*(C`selection_end\*(C'\fR. If \f(CW$rectangular\fR is true (default: false), a
859 rectangular selection will be made. This is the prefered function to make
860 a selection.
861 .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
862 .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
863 .IX Item "$success = $term->selection_grab ($eventtime)"
864 Try to request the primary selection text from the server (for example, as
865 set by the next method). No visual feedback will be given. This function
866 is mostly useful from within \f(CW\*(C`on_sel_grab\*(C'\fR hooks.
867 .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
868 .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
869 .IX Item "$oldtext = $term->selection ([$newtext])"
870 Return the current selection text and optionally replace it by \f(CW$newtext\fR.
871 .ie n .IP "$term\->overlay_simple ($x, $y\fR, \f(CW$text)" 4
872 .el .IP "$term\->overlay_simple ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
873 .IX Item "$term->overlay_simple ($x, $y, $text)"
874 Create a simple multi-line overlay box. See the next method for details.
875 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
876 .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
877 .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
878 Create a new (empty) overlay at the given position with the given
879 width/height. \f(CW$rstyle\fR defines the initial rendition style
880 (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
881 .Sp
882 If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
883 around the box.
884 .Sp
885 If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
886 right/bottom side, respectively.
887 .Sp
888 This method returns an urxvt::overlay object. The overlay will be visible
889 as long as the perl object is referenced.
890 .Sp
891 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
892 .RS 4
893 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
894 .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
895 .IX Item "$overlay->set ($x, $y, $text, $rend)"
896 Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
897 text in rxvt\-unicode's special encoding and an array of rendition values
898 at a specific position inside the overlay.
899 .IP "$overlay\->hide" 4
900 .IX Item "$overlay->hide"
901 If visible, hide the overlay, but do not destroy it.
902 .IP "$overlay\->show" 4
903 .IX Item "$overlay->show"
904 If hidden, display the overlay again.
905 .RE
906 .RS 4
907 .RE
908 .ie n .IP "$popup = $term\->popup ($event)" 4
909 .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
910 .IX Item "$popup = $term->popup ($event)"
911 Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
912 \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
913 currently).
914 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
915 .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
916 .IX Item "$cellwidth = $term->strwidth ($string)"
917 Returns the number of screen-cells this string would need. Correctly
918 accounts for wide and combining characters.
919 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
920 .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
921 .IX Item "$octets = $term->locale_encode ($string)"
922 Convert the given text string into the corresponding locale encoding.
923 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
924 .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
925 .IX Item "$string = $term->locale_decode ($octets)"
926 Convert the given locale-encoded octets into a perl string.
927 .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
928 .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
929 .IX Item "$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])"
930 XORs the rendition values in the given span with the provided value
931 (default: \f(CW\*(C`RS_RVid\*(C'\fR), which \fI\s-1MUST\s0 \s-1NOT\s0\fR contain font styles. Useful in
932 refresh hooks to provide effects similar to the selection.
933 .ie n .IP "$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$rstyle2]])" 4
934 .el .IP "$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
935 .IX Item "$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])"
936 Similar to \f(CW\*(C`scr_xor_span\*(C'\fR, but xors a rectangle instead. Trailing
937 whitespace will additionally be xored with the \f(CW$rstyle2\fR, which defaults
938 to \f(CW\*(C`RS_RVid | RS_Uline\*(C'\fR, which removes reverse video again and underlines
939 it instead. Both styles \fI\s-1MUST\s0 \s-1NOT\s0\fR contain font styles.
940 .IP "$term\->scr_bell" 4
941 .IX Item "$term->scr_bell"
942 Ring the bell!
943 .IP "$term\->scr_add_lines ($string)" 4
944 .IX Item "$term->scr_add_lines ($string)"
945 Write the given text string to the screen, as if output by the application
946 running inside the terminal. It may not contain command sequences (escape
947 codes), but is free to use line feeds, carriage returns and tabs. The
948 string is a normal text string, not in locale-dependent encoding.
949 .Sp
950 Normally its not a good idea to use this function, as programs might be
951 confused by changes in cursor position or scrolling. Its useful inside a
952 \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
953 .IP "$term\->cmd_parse ($octets)" 4
954 .IX Item "$term->cmd_parse ($octets)"
955 Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
956 locale-specific encoding of the terminal and can contain command sequences
957 (escape codes) that will be interpreted.
958 .IP "$term\->tt_write ($octets)" 4
959 .IX Item "$term->tt_write ($octets)"
960 Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
961 pass characters instead of octets, you should convert your strings first
962 to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
963 .ie n .IP "$old_events = $term\->pty_ev_events ([$new_events])" 4
964 .el .IP "$old_events = \f(CW$term\fR\->pty_ev_events ([$new_events])" 4
965 .IX Item "$old_events = $term->pty_ev_events ([$new_events])"
966 Replaces the event mask of the pty watcher by the given event mask. Can
967 be used to suppress input and output handling to the pty/tty. See the
968 description of \f(CW\*(C`urxvt::timer\->events\*(C'\fR. Make sure to always restore
969 the previous value.
970 .ie n .IP "$windowid = $term\->parent" 4
971 .el .IP "$windowid = \f(CW$term\fR\->parent" 4
972 .IX Item "$windowid = $term->parent"
973 Return the window id of the toplevel window.
974 .ie n .IP "$windowid = $term\->vt" 4
975 .el .IP "$windowid = \f(CW$term\fR\->vt" 4
976 .IX Item "$windowid = $term->vt"
977 Return the window id of the terminal window.
978 .IP "$term\->vt_emask_add ($x_event_mask)" 4
979 .IX Item "$term->vt_emask_add ($x_event_mask)"
980 Adds the specified events to the vt event mask. Useful e.g. when you want
981 to receive pointer events all the times:
982 .Sp
983 .Vb 1
984 \& $term->vt_emask_add (urxvt::PointerMotionMask);
985 .Ve
986 .ie n .IP "$window_width = $term\->width" 4
987 .el .IP "$window_width = \f(CW$term\fR\->width" 4
988 .IX Item "$window_width = $term->width"
989 .PD 0
990 .ie n .IP "$window_height = $term\->height" 4
991 .el .IP "$window_height = \f(CW$term\fR\->height" 4
992 .IX Item "$window_height = $term->height"
993 .ie n .IP "$font_width = $term\->fwidth" 4
994 .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
995 .IX Item "$font_width = $term->fwidth"
996 .ie n .IP "$font_height = $term\->fheight" 4
997 .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
998 .IX Item "$font_height = $term->fheight"
999 .ie n .IP "$font_ascent = $term\->fbase" 4
1000 .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
1001 .IX Item "$font_ascent = $term->fbase"
1002 .ie n .IP "$terminal_rows = $term\->nrow" 4
1003 .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
1004 .IX Item "$terminal_rows = $term->nrow"
1005 .ie n .IP "$terminal_columns = $term\->ncol" 4
1006 .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
1007 .IX Item "$terminal_columns = $term->ncol"
1008 .ie n .IP "$has_focus = $term\->focus" 4
1009 .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
1010 .IX Item "$has_focus = $term->focus"
1011 .ie n .IP "$is_mapped = $term\->mapped" 4
1012 .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
1013 .IX Item "$is_mapped = $term->mapped"
1014 .ie n .IP "$max_scrollback = $term\->saveLines" 4
1015 .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
1016 .IX Item "$max_scrollback = $term->saveLines"
1017 .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
1018 .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
1019 .IX Item "$nrow_plus_saveLines = $term->total_rows"
1020 .ie n .IP "$topmost_scrollback_row = $term\->top_row" 4
1021 .el .IP "$topmost_scrollback_row = \f(CW$term\fR\->top_row" 4
1022 .IX Item "$topmost_scrollback_row = $term->top_row"
1023 .PD
1024 Return various integers describing terminal characteristics.
1025 .ie n .IP "$x_display = $term\->display_id" 4
1026 .el .IP "$x_display = \f(CW$term\fR\->display_id" 4
1027 .IX Item "$x_display = $term->display_id"
1028 Return the \s-1DISPLAY\s0 used by rxvt\-unicode.
1029 .ie n .IP "$lc_ctype = $term\->locale" 4
1030 .el .IP "$lc_ctype = \f(CW$term\fR\->locale" 4
1031 .IX Item "$lc_ctype = $term->locale"
1032 Returns the \s-1LC_CTYPE\s0 category string used by this rxvt\-unicode.
1033 .ie n .IP "$env = $term\->env" 4
1034 .el .IP "$env = \f(CW$term\fR\->env" 4
1035 .IX Item "$env = $term->env"
1036 Returns a copy of the environment in effect for the terminal as a hashref
1037 similar to \f(CW\*(C`\e%ENV\*(C'\fR.
1038 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
1039 .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
1040 .IX Item "$modifiermask = $term->ModLevel3Mask"
1041 .PD 0
1042 .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
1043 .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
1044 .IX Item "$modifiermask = $term->ModMetaMask"
1045 .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
1046 .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
1047 .IX Item "$modifiermask = $term->ModNumLockMask"
1048 .PD
1049 Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
1050 AltGr), the meta key (often Alt) and the num lock key, if applicable.
1051 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
1052 .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
1053 .IX Item "$view_start = $term->view_start ([$newvalue])"
1054 Returns the row number of the topmost displayed line. Maximum value is
1055 \&\f(CW0\fR, which displays the normal terminal contents. Lower values scroll
1056 this many lines into the scrollback buffer.
1057 .IP "$term\->want_refresh" 4
1058 .IX Item "$term->want_refresh"
1059 Requests a screen refresh. At the next opportunity, rxvt-unicode will
1060 compare the on-screen display with its stored representation. If they
1061 differ, it redraws the differences.
1062 .Sp
1063 Used after changing terminal contents to display them.
1064 .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
1065 .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
1066 .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
1067 Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
1068 is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
1069 terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
1070 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
1071 is requested.
1072 .Sp
1073 If \f(CW$new_text\fR is specified, it will replace characters in the current
1074 line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
1075 to replace only parts of a line. The font index in the rendition will
1076 automatically be updated.
1077 .Sp
1078 \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
1079 than one cell when displayed are padded with urxvt::NOCHAR characters
1080 (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
1081 that do not fit into the normal tetx encoding will be replaced with
1082 characters in the private use area.
1083 .Sp
1084 You have to obey this encoding when changing text. The advantage is
1085 that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
1086 characters.
1087 .Sp
1088 The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
1089 can be used to convert normal strings into this encoding and vice versa.
1090 .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
1091 .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
1092 .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
1093 Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
1094 bitsets. Rendition bitsets contain information about colour, font, font
1095 styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
1096 .Sp
1097 When setting rendition, the font mask will be ignored.
1098 .Sp
1099 See the section on \s-1RENDITION\s0, above.
1100 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
1101 .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
1102 .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
1103 Returns the number of screen cells that are in use (\*(L"the line
1104 length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
1105 line is joined with the following one.
1106 .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
1107 .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
1108 .IX Item "$bool = $term->is_longer ($row_number)"
1109 Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
1110 joined with the following row), which means all characters are in use
1111 and it is continued on the next row (and possibly a continuation of the
1112 previous row(s)).
1113 .ie n .IP "$line = $term\->line ($row_number)" 4
1114 .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
1115 .IX Item "$line = $term->line ($row_number)"
1116 Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
1117 about the logical line that row \f(CW$row_number\fR is part of. It supports the
1118 following methods:
1119 .RS 4
1120 .ie n .IP "$text = $line\->t ([$new_text])" 4
1121 .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
1122 .IX Item "$text = $line->t ([$new_text])"
1123 Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
1124 .ie n .IP "$rend = $line\->r ([$new_rend])" 4
1125 .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
1126 .IX Item "$rend = $line->r ([$new_rend])"
1127 Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
1128 .ie n .IP "$length = $line\->l" 4
1129 .el .IP "$length = \f(CW$line\fR\->l" 4
1130 .IX Item "$length = $line->l"
1131 Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
1132 .ie n .IP "$rownum = $line\->beg" 4
1133 .el .IP "$rownum = \f(CW$line\fR\->beg" 4
1134 .IX Item "$rownum = $line->beg"
1135 .PD 0
1136 .ie n .IP "$rownum = $line\->end" 4
1137 .el .IP "$rownum = \f(CW$line\fR\->end" 4
1138 .IX Item "$rownum = $line->end"
1139 .PD
1140 Return the row number of the first/last row of the line, respectively.
1141 .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
1142 .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
1143 .IX Item "$offset = $line->offset_of ($row, $col)"
1144 Returns the character offset of the given row|col pair within the logical
1145 line. Works for rows outside the line, too, and returns corresponding
1146 offsets outside the string.
1147 .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
1148 .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
1149 .IX Item "($row, $col) = $line->coord_of ($offset)"
1150 Translates a string offset into terminal coordinates again.
1151 .RE
1152 .RS 4
1153 .RE
1154 .ie n .IP "$text = $term\fR\->special_encode \f(CW$string" 4
1155 .el .IP "$text = \f(CW$term\fR\->special_encode \f(CW$string\fR" 4
1156 .IX Item "$text = $term->special_encode $string"
1157 Converts a perl string into the special encoding used by rxvt\-unicode,
1158 where one character corresponds to one screen cell. See
1159 \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
1160 .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
1161 .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
1162 .IX Item "$string = $term->special_decode $text"
1163 Converts rxvt-unicodes text reprsentation into a perl string. See
1164 \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
1165 .ie n .IP "$success = $term\fR\->grab_button ($button, \f(CW$modifiermask)" 4
1166 .el .IP "$success = \f(CW$term\fR\->grab_button ($button, \f(CW$modifiermask\fR)" 4
1167 .IX Item "$success = $term->grab_button ($button, $modifiermask)"
1168 Registers a synchronous button grab. See the XGrabButton manpage.
1169 .ie n .IP "$success = $term\fR\->grab ($eventtime[, \f(CW$sync])" 4
1170 .el .IP "$success = \f(CW$term\fR\->grab ($eventtime[, \f(CW$sync\fR])" 4
1171 .IX Item "$success = $term->grab ($eventtime[, $sync])"
1172 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1173 synchronous (\f(CW$sync\fR is true). Also remembers the grab timestampe.
1174 .IP "$term\->allow_events_async" 4
1175 .IX Item "$term->allow_events_async"
1176 Calls XAllowEvents with AsyncBoth for the most recent grab.
1177 .IP "$term\->allow_events_sync" 4
1178 .IX Item "$term->allow_events_sync"
1179 Calls XAllowEvents with SyncBoth for the most recent grab.
1180 .IP "$term\->allow_events_replay" 4
1181 .IX Item "$term->allow_events_replay"
1182 Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1183 recent grab.
1184 .IP "$term\->ungrab" 4
1185 .IX Item "$term->ungrab"
1186 Calls XUngrab for the most recent grab. Is called automatically on
1187 evaluation errors, as it is better to lose the grab in the error case as
1188 the session.
1189 .ie n .Sh "The ""urxvt::popup"" Class"
1190 .el .Sh "The \f(CWurxvt::popup\fP Class"
1191 .IX Subsection "The urxvt::popup Class"
1192 .IP "$popup\->add_title ($title)" 4
1193 .IX Item "$popup->add_title ($title)"
1194 Adds a non-clickable title to the popup.
1195 .IP "$popup\->add_separator ([$sepchr])" 4
1196 .IX Item "$popup->add_separator ([$sepchr])"
1197 Creates a separator, optionally using the character given as \f(CW$sepchr\fR.
1198 .ie n .IP "$popup\->add_button ($text, $cb)" 4
1199 .el .IP "$popup\->add_button ($text, \f(CW$cb\fR)" 4
1200 .IX Item "$popup->add_button ($text, $cb)"
1201 Adds a clickable button to the popup. \f(CW$cb\fR is called whenever it is
1202 selected.
1203 .ie n .IP "$popup\->add_toggle ($text, $cb\fR, \f(CW$initial_value)" 4
1204 .el .IP "$popup\->add_toggle ($text, \f(CW$cb\fR, \f(CW$initial_value\fR)" 4
1205 .IX Item "$popup->add_toggle ($text, $cb, $initial_value)"
1206 Adds a toggle/checkbox item to the popup. Teh callback gets called
1207 whenever it gets toggled, with a boolean indicating its value as its first
1208 argument.
1209 .IP "$popup\->show" 4
1210 .IX Item "$popup->show"
1211 Displays the popup (which is initially hidden).
1212 .ie n .Sh "The ""urxvt::timer"" Class"
1213 .el .Sh "The \f(CWurxvt::timer\fP Class"
1214 .IX Subsection "The urxvt::timer Class"
1215 This class implements timer watchers/events. Time is represented as a
1216 fractional number of seconds since the epoch. Example:
1217 .PP
1218 .Vb 8
1219 \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1220 \& $term->{timer} = urxvt::timer
1221 \& ->new
1222 \& ->interval (1)
1223 \& ->cb (sub {
1224 \& $term->{overlay}->set (0, 0,
1225 \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1226 \& });
1227 .Ve
1228 .IP "$timer = new urxvt::timer" 4
1229 .IX Item "$timer = new urxvt::timer"
1230 Create a new timer object in started state. It is scheduled to fire
1231 immediately.
1232 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
1233 .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
1234 .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
1235 Set the callback to be called when the timer triggers.
1236 .ie n .IP "$tstamp = $timer\->at" 4
1237 .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
1238 .IX Item "$tstamp = $timer->at"
1239 Return the time this watcher will fire next.
1240 .ie n .IP "$timer = $timer\->set ($tstamp)" 4
1241 .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
1242 .IX Item "$timer = $timer->set ($tstamp)"
1243 Set the time the event is generated to \f(CW$tstamp\fR.
1244 .ie n .IP "$timer = $timer\->interval ($interval)" 4
1245 .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
1246 .IX Item "$timer = $timer->interval ($interval)"
1247 Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
1248 stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
1249 is automatically rescheduled at the given intervals.
1250 .ie n .IP "$timer = $timer\->start" 4
1251 .el .IP "$timer = \f(CW$timer\fR\->start" 4
1252 .IX Item "$timer = $timer->start"
1253 Start the timer.
1254 .ie n .IP "$timer = $timer\->start ($tstamp)" 4
1255 .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
1256 .IX Item "$timer = $timer->start ($tstamp)"
1257 Set the event trigger time to \f(CW$tstamp\fR and start the timer.
1258 .ie n .IP "$timer = $timer\->after ($delay)" 4
1259 .el .IP "$timer = \f(CW$timer\fR\->after ($delay)" 4
1260 .IX Item "$timer = $timer->after ($delay)"
1261 Like \f(CW\*(C`start\*(C'\fR, but sets the expiry timer to c<urxvt::NOW + \f(CW$delay\fR>.
1262 .ie n .IP "$timer = $timer\->stop" 4
1263 .el .IP "$timer = \f(CW$timer\fR\->stop" 4
1264 .IX Item "$timer = $timer->stop"
1265 Stop the timer.
1266 .ie n .Sh "The ""urxvt::iow"" Class"
1267 .el .Sh "The \f(CWurxvt::iow\fP Class"
1268 .IX Subsection "The urxvt::iow Class"
1269 This class implements io watchers/events. Example:
1270 .PP
1271 .Vb 12
1272 \& $term->{socket} = ...
1273 \& $term->{iow} = urxvt::iow
1274 \& ->new
1275 \& ->fd (fileno $term->{socket})
1276 \& ->events (urxvt::EVENT_READ)
1277 \& ->start
1278 \& ->cb (sub {
1279 \& my ($iow, $revents) = @_;
1280 \& # $revents must be 1 here, no need to check
1281 \& sysread $term->{socket}, my $buf, 8192
1282 \& or end-of-file;
1283 \& });
1284 .Ve
1285 .IP "$iow = new urxvt::iow" 4
1286 .IX Item "$iow = new urxvt::iow"
1287 Create a new io watcher object in stopped state.
1288 .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
1289 .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
1290 .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
1291 Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
1292 is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
1293 .ie n .IP "$iow = $iow\->fd ($fd)" 4
1294 .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
1295 .IX Item "$iow = $iow->fd ($fd)"
1296 Set the filedescriptor (not handle) to watch.
1297 .ie n .IP "$iow = $iow\->events ($eventmask)" 4
1298 .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
1299 .IX Item "$iow = $iow->events ($eventmask)"
1300 Set the event mask to watch. The only allowed values are
1301 \&\f(CW\*(C`urxvt::EVENT_READ\*(C'\fR and \f(CW\*(C`urxvt::EVENT_WRITE\*(C'\fR, which might be ORed
1302 together, or \f(CW\*(C`urxvt::EVENT_NONE\*(C'\fR.
1303 .ie n .IP "$iow = $iow\->start" 4
1304 .el .IP "$iow = \f(CW$iow\fR\->start" 4
1305 .IX Item "$iow = $iow->start"
1306 Start watching for requested events on the given handle.
1307 .ie n .IP "$iow = $iow\->stop" 4
1308 .el .IP "$iow = \f(CW$iow\fR\->stop" 4
1309 .IX Item "$iow = $iow->stop"
1310 Stop watching for events on the given filehandle.
1311 .SH "ENVIRONMENT"
1312 .IX Header "ENVIRONMENT"
1313 .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
1314 .IX Subsection "URXVT_PERL_VERBOSITY"
1315 This variable controls the verbosity level of the perl extension. Higher
1316 numbers indicate more verbose output.
1317 .IP "== 0 \- fatal messages" 4
1318 .IX Item "== 0 - fatal messages"
1319 .PD 0
1320 .IP ">= 3 \- script loading and management" 4
1321 .IX Item ">= 3 - script loading and management"
1322 .IP ">=10 \- all called hooks" 4
1323 .IX Item ">=10 - all called hooks"
1324 .IP ">=11 \- hook reutrn values" 4
1325 .IX Item ">=11 - hook reutrn values"
1326 .PD
1327 .SH "AUTHOR"
1328 .IX Header "AUTHOR"
1329 .Vb 2
1330 \& Marc Lehmann <pcg@goof.com>
1331 \& http://software.schmorp.de/pkg/rxvt-unicode
1332 .Ve