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Revision: 1.16
Committed: Sun Jan 8 06:35:38 2006 UTC (18 years, 6 months ago) by root
Branch: MAIN
Changes since 1.15: +15 -3 lines
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# Content
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129 .\" ========================================================================
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131 .IX Title "rxvt 3"
132 .TH rxvt 3 "2006-01-08" "6.3" "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 Subsection "Prepackaged Extensions"
167 This section describes the extensiosn delivered with this version. 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 Intelligent selection. This extension tries to be more intelligent when
178 the user extends selections (double\-click). Right now, it tries to select
179 urls and complete shell-quoted arguments, which is very convenient, too,
180 if your \fIls\fR supports \f(CW\*(C`\-\-quoting\-style=shell\*(C'\fR.
181 .Sp
182 It also offers the following bindable event:
183 .RS 4
184 .IP "rot13" 4
185 .IX Item "rot13"
186 Rot\-13 the selection when activated. Used via keyboard trigger:
187 .Sp
188 .Vb 1
189 \& URxvt.keysym.C-M-r: perl:selection:rot13
190 .Ve
191 .RE
192 .RS 4
193 .RE
194 .IP "option-popup (enabled by default)" 4
195 .IX Item "option-popup (enabled by default)"
196 Binds a popup menu to Ctrl\-Button3 that lets you toggle (some) options at
197 runtime.
198 .IP "digital-clock" 4
199 .IX Item "digital-clock"
200 Displays a digital clock using the built-in overlay.
201 .IP "mark-urls" 4
202 .IX Item "mark-urls"
203 Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls.
204 .IP "block-graphics-to-ascii" 4
205 .IX Item "block-graphics-to-ascii"
206 A not very useful example of filtering all text output to the terminal,
207 by replacing all line-drawing characters (U+2500 .. U+259F) by a
208 similar-looking ascii character.
209 .IP "example-refresh-hooks" 4
210 .IX Item "example-refresh-hooks"
211 Displays a very simple digital clock in the upper right corner of the
212 window. Illustrates overwriting the refresh callbacks to create your own
213 overlays or changes.
214 .Sh "General \s-1API\s0 Considerations"
215 .IX Subsection "General API Considerations"
216 All objects (such as terminals, time watchers etc.) are typical
217 reference-to-hash objects. The hash can be used to store anything you
218 like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
219 \&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and \fB\s-1MUST\s0 \s-1NOT\s0\fR be accessed or
220 modified).
221 .PP
222 When objects are destroyed on the \*(C+ side, the perl object hashes are
223 emptied, so its best to store related objects such as time watchers and
224 the like inside the terminal object so they get destroyed as soon as the
225 terminal is destroyed.
226 .PP
227 Argument names also often indicate the type of a parameter. Here are some
228 hints on what they mean:
229 .IP "$text" 4
230 .IX Item "$text"
231 Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
232 always represents one screen cell. See row_t for a discussion of this format.
233 .IP "$string" 4
234 .IX Item "$string"
235 A perl text string, with an emphasis on \fItext\fR. It can store all unicode
236 characters and is to be distinguished with text encoded in a specific
237 encoding (often locale\-specific) and binary data.
238 .IP "$octets" 4
239 .IX Item "$octets"
240 Either binary data or \- more common \- a text string encoded in a
241 locale-specific way.
242 .Sh "Hooks"
243 .IX Subsection "Hooks"
244 The following subroutines can be declared in extension files, and will be
245 called whenever the relevant event happens.
246 .PP
247 The first argument passed to them is an object private to each terminal
248 and extension package. You can call all \f(CW\*(C`urxvt::term\*(C'\fR methods on it, but
249 its not a real \f(CW\*(C`urxvt::term\*(C'\fR object. Instead, the real \f(CW\*(C`urxvt::term\*(C'\fR
250 object that is shared between all packages is stored in the \f(CW\*(C`term\*(C'\fR
251 member. It is, however, blessed intot he package of the extension script,
252 so for all practical purposes you can treat an extension script as a class.
253 .PP
254 All of them must return a boolean value. If it is true, then the event
255 counts as being \fIconsumed\fR, and the invocation of other hooks is skipped,
256 and the relevant action might not be carried out by the \*(C+ code.
257 .PP
258 When in doubt, return a false value (preferably \f(CW\*(C`()\*(C'\fR).
259 .ie n .IP "on_init $term" 4
260 .el .IP "on_init \f(CW$term\fR" 4
261 .IX Item "on_init $term"
262 Called after a new terminal object has been initialized, but before
263 windows are created or the command gets run. Most methods are unsafe to
264 call or deliver senseless data, as terminal size and other characteristics
265 have not yet been determined. You can safely query and change resources,
266 though.
267 .ie n .IP "on_reset $term" 4
268 .el .IP "on_reset \f(CW$term\fR" 4
269 .IX Item "on_reset $term"
270 Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
271 control sequences. Here is where you can react on changes to size-related
272 variables.
273 .ie n .IP "on_start $term" 4
274 .el .IP "on_start \f(CW$term\fR" 4
275 .IX Item "on_start $term"
276 Called at the very end of initialisation of a new terminal, just before
277 returning to the mainloop.
278 .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
279 .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
280 .IX Item "on_sel_make $term, $eventtime"
281 Called whenever a selection has been made by the user, but before the
282 selection text is copied, so changes to the beginning, end or type of the
283 selection will be honored.
284 .Sp
285 Returning a true value aborts selection making by urxvt, in which case you
286 have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
287 .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
288 .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
289 .IX Item "on_sel_grab $term, $eventtime"
290 Called whenever a selection has been copied, but before the selection is
291 requested from the server. The selection text can be queried and changed
292 by calling \f(CW\*(C`$term\->selection\*(C'\fR.
293 .Sp
294 Returning a true value aborts selection grabbing. It will still be hilighted.
295 .ie n .IP "on_sel_extend $term" 4
296 .el .IP "on_sel_extend \f(CW$term\fR" 4
297 .IX Item "on_sel_extend $term"
298 Called whenever the user tries to extend the selection (e.g. with a double
299 click) and is either supposed to return false (normal operation), or
300 should extend the selection itelf and return true to suppress the built-in
301 processing.
302 .Sp
303 See the \fIselection\fR example extension.
304 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
305 .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
306 .IX Item "on_view_change $term, $offset"
307 Called whenever the view offset changes, i..e the user or program
308 scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
309 show this many lines of scrollback.
310 .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
311 .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
312 .IX Item "on_scroll_back $term, $lines, $saved"
313 Called whenever lines scroll out of the terminal area into the scrollback
314 buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
315 than the scroll back buffer or the terminal.
316 .Sp
317 It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
318 \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
319 number of lines that will be in the scrollback buffer.
320 .ie n .IP "on_tty_activity $term *NYI*" 4
321 .el .IP "on_tty_activity \f(CW$term\fR *NYI*" 4
322 .IX Item "on_tty_activity $term *NYI*"
323 Called whenever the program(s) running in the urxvt window send output.
324 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
325 .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
326 .IX Item "on_osc_seq $term, $string"
327 Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
328 operating system command) is processed. Cursor position and other state
329 information is up-to-date when this happens. For interoperability, the
330 string should start with the extension name and a colon, to distinguish
331 it from commands for other extensions, and this might be enforced in the
332 future.
333 .Sp
334 Be careful not ever to trust (in a security sense) the data you receive,
335 as its source can not easily be controleld (e\-mail content, messages from
336 other users on the same system etc.).
337 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
338 .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
339 .IX Item "on_add_lines $term, $string"
340 Called whenever text is about to be output, with the text as argument. You
341 can filter/change and output the text yourself by returning a true value
342 and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
343 might be very slow, however, as your hook is called for \fBall\fR text being
344 output.
345 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
346 .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
347 .IX Item "on_line_update $term, $row"
348 Called whenever a line was updated or changed. Can be used to filter
349 screen output (e.g. underline urls or other useless stuff). Only lines
350 that are being shown will be filtered, and, due to performance reasons,
351 not always immediately.
352 .Sp
353 The row number is always the topmost row of the line if the line spans
354 multiple rows.
355 .Sp
356 Please note that, if you change the line, then the hook might get called
357 later with the already-modified line (e.g. if unrelated parts change), so
358 you cannot just toggle rendition bits, but only set them.
359 .ie n .IP "on_refresh_begin $term" 4
360 .el .IP "on_refresh_begin \f(CW$term\fR" 4
361 .IX Item "on_refresh_begin $term"
362 Called just before the screen gets redrawn. Can be used for overlay
363 or similar effects by modify terminal contents in refresh_begin, and
364 restoring them in refresh_end. The built-in overlay and selection display
365 code is run after this hook, and takes precedence.
366 .ie n .IP "on_refresh_end $term" 4
367 .el .IP "on_refresh_end \f(CW$term\fR" 4
368 .IX Item "on_refresh_end $term"
369 Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
370 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
371 .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
372 .IX Item "on_keyboard_command $term, $string"
373 Called whenever the user presses a key combination that has a
374 \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
375 resource in the @@RXVT_NAME@@(1) manpage).
376 .ie n .IP "on_focus_in $term" 4
377 .el .IP "on_focus_in \f(CW$term\fR" 4
378 .IX Item "on_focus_in $term"
379 Called whenever the window gets the keyboard focus, before rxvt-unicode
380 does focus in processing.
381 .ie n .IP "on_focus_out $term" 4
382 .el .IP "on_focus_out \f(CW$term\fR" 4
383 .IX Item "on_focus_out $term"
384 Called wheneever the window loses keyboard focus, before rxvt-unicode does
385 focus out processing.
386 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$octets" 4
387 .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$octets\fR" 4
388 .IX Item "on_key_press $term, $event, $octets"
389 .PD 0
390 .ie n .IP "on_key_release $term\fR, \f(CW$event" 4
391 .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR" 4
392 .IX Item "on_key_release $term, $event"
393 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
394 .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
395 .IX Item "on_button_press $term, $event"
396 .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
397 .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
398 .IX Item "on_button_release $term, $event"
399 .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
400 .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
401 .IX Item "on_motion_notify $term, $event"
402 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
403 .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
404 .IX Item "on_map_notify $term, $event"
405 .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
406 .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
407 .IX Item "on_unmap_notify $term, $event"
408 .PD
409 Called whenever the corresponding X event is received for the terminal If
410 the hook returns true, then the even will be ignored by rxvt\-unicode.
411 .Sp
412 The event is a hash with most values as named by Xlib (see the XEvent
413 manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
414 and column under the mouse cursor.
415 .Sp
416 \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
417 output, if any, in locale-specific encoding.
418 .Sp
419 subwindow.
420 .ie n .Sh "Variables in the ""urxvt"" Package"
421 .el .Sh "Variables in the \f(CWurxvt\fP Package"
422 .IX Subsection "Variables in the urxvt Package"
423 .IP "$urxvt::TERM" 4
424 .IX Item "$urxvt::TERM"
425 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
426 object, whenever a callback/hook is executing.
427 .ie n .Sh "Functions in the ""urxvt"" Package"
428 .el .Sh "Functions in the \f(CWurxvt\fP Package"
429 .IX Subsection "Functions in the urxvt Package"
430 .IP "$term = new urxvt [arg...]" 4
431 .IX Item "$term = new urxvt [arg...]"
432 Creates a new terminal, very similar as if you had started it with
433 \&\f(CW\*(C`system $binfile, arg...\*(C'\fR. Croaks (and probably outputs an error message)
434 if the new instance couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new
435 instance didn't initialise perl, and the terminal object otherwise. The
436 \&\f(CW\*(C`init\*(C'\fR and \f(CW\*(C`start\*(C'\fR hooks will be called during the call.
437 .ie n .IP "urxvt::fatal $errormessage" 4
438 .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
439 .IX Item "urxvt::fatal $errormessage"
440 Fatally aborts execution with the given error message. Avoid at all
441 costs! The only time this is acceptable is when the terminal process
442 starts up.
443 .ie n .IP "urxvt::warn $string" 4
444 .el .IP "urxvt::warn \f(CW$string\fR" 4
445 .IX Item "urxvt::warn $string"
446 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
447 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
448 that calls this function.
449 .Sp
450 Using this function has the advantage that its output ends up in the
451 correct place, e.g. on stderr of the connecting urxvtc client.
452 .IP "$time = urxvt::NOW" 4
453 .IX Item "$time = urxvt::NOW"
454 Returns the \*(L"current time\*(R" (as per the event loop).
455 .IP "urxvt::CurrentTime" 4
456 .IX Item "urxvt::CurrentTime"
457 .PD 0
458 .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
459 .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
460 .PD
461 Various constants for use in X calls and event processing.
462 .Sh "\s-1RENDITION\s0"
463 .IX Subsection "RENDITION"
464 Rendition bitsets contain information about colour, font, font styles and
465 similar information for each screen cell.
466 .PP
467 The following \*(L"macros\*(R" deal with changes in rendition sets. You should
468 never just create a bitset, you should always modify an existing one,
469 as they contain important information required for correct operation of
470 rxvt\-unicode.
471 .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
472 .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
473 Returns the default rendition, as used when the terminal is starting up or
474 being reset. Useful as a base to start when creating renditions.
475 .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
476 .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
477 Return the rendition mask used for overlays by default.
478 .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
479 .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
480 Return the bit that enabled bold, italic, blink, reverse-video and
481 underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
482 the bitset.
483 .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
484 .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
485 .IX Item "$foreground = urxvt::GET_BASEFG $rend"
486 .PD 0
487 .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
488 .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
489 .IX Item "$background = urxvt::GET_BASEBG $rend"
490 .PD
491 Return the foreground/background colour index, respectively.
492 .ie n .IP "$rend = urxvt::SET_FGCOLOR ($rend, $new_colour)" 4
493 .el .IP "$rend = urxvt::SET_FGCOLOR ($rend, \f(CW$new_colour\fR)" 4
494 .IX Item "$rend = urxvt::SET_FGCOLOR ($rend, $new_colour)"
495 .PD 0
496 .ie n .IP "$rend = urxvt::SET_BGCOLOR ($rend, $new_colour)" 4
497 .el .IP "$rend = urxvt::SET_BGCOLOR ($rend, \f(CW$new_colour\fR)" 4
498 .IX Item "$rend = urxvt::SET_BGCOLOR ($rend, $new_colour)"
499 .PD
500 Replace the foreground/background colour in the rendition mask with the
501 specified one.
502 .IP "$value = urxvt::GET_CUSTOM ($rend)" 4
503 .IX Item "$value = urxvt::GET_CUSTOM ($rend)"
504 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
505 extensions. They can be set and changed as you like and are initially
506 zero.
507 .ie n .IP "$rend = urxvt::SET_CUSTOM ($rend, $new_value)" 4
508 .el .IP "$rend = urxvt::SET_CUSTOM ($rend, \f(CW$new_value\fR)" 4
509 .IX Item "$rend = urxvt::SET_CUSTOM ($rend, $new_value)"
510 Change the custom value.
511 .ie n .Sh "The ""urxvt::anyevent"" Class"
512 .el .Sh "The \f(CWurxvt::anyevent\fP Class"
513 .IX Subsection "The urxvt::anyevent Class"
514 The sole purpose of this class is to deliver an interface to the
515 \&\f(CW\*(C`AnyEvent\*(C'\fR module \- any module using it will work inside urxvt without
516 further work. The only exception is that you cannot wait on condition
517 variables, but non-blocking condvar use is ok. What this means is that you
518 cannot use blocking APIs, but the non-blocking variant should work.
519 .ie n .Sh "The ""urxvt::term"" Class"
520 .el .Sh "The \f(CWurxvt::term\fP Class"
521 .IX Subsection "The urxvt::term Class"
522 .IP "$term\->destroy" 4
523 .IX Item "$term->destroy"
524 Destroy the terminal object (close the window, free resources etc.).
525 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
526 .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
527 .IX Item "$isset = $term->option ($optval[, $set])"
528 Returns true if the option specified by \f(CW$optval\fR is enabled, and
529 optionally change it. All option values are stored by name in the hash
530 \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
531 .Sp
532 Here is a a likely non-exhaustive list of option names, please see the
533 source file \fI/src/optinc.h\fR to see the actual list:
534 .Sp
535 .Vb 6
536 \& borderLess console cursorBlink cursorUnderline hold iconic insecure
537 \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
538 \& pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
539 \& scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
540 \& secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
541 \& tripleclickwords utmpInhibit visualBell
542 .Ve
543 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
544 .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
545 .IX Item "$value = $term->resource ($name[, $newval])"
546 Returns the current resource value associated with a given name and
547 optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
548 hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
549 .Sp
550 The new value must be properly encoded to a suitable character encoding
551 before passing it to this method. Similarly, the returned value may need
552 to be converted from the used encoding to text.
553 .Sp
554 Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
555 as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
556 likely change).
557 .Sp
558 Please note that resource strings will currently only be freed when the
559 terminal is destroyed, so changing options frequently will eat memory.
560 .Sp
561 Here is a a likely non-exhaustive list of resource names, not all of which
562 are supported in every build, please see the source file \fI/src/rsinc.h\fR
563 to see the actual list:
564 .Sp
565 .Vb 12
566 \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
567 \& borderLess color cursorBlink cursorUnderline cutchars delete_key
568 \& display_name embed ext_bwidth fade font geometry hold iconName
569 \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
570 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
571 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
572 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
573 \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
574 \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
575 \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
576 \& shade term_name title transparent transparent_all tripleclickwords
577 \& utmpInhibit visualBell
578 .Ve
579 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
580 .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
581 .IX Item "$rend = $term->rstyle ([$new_rstyle])"
582 Return and optionally change the current rendition. Text that is output by
583 the terminal application will use this style.
584 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
585 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
586 .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
587 Return the current coordinates of the text cursor position and optionally
588 set it (which is usually bad as applications don't expect that).
589 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
590 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
591 .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
592 .PD 0
593 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
594 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
595 .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
596 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
597 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
598 .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
599 .PD
600 Return the current values of the selection mark, begin or end positions,
601 and optionally set them to new values.
602 .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
603 .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
604 .IX Item "$success = $term->selection_grab ($eventtime)"
605 Try to request the primary selection from the server (for example, as set
606 by the next method).
607 .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
608 .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
609 .IX Item "$oldtext = $term->selection ([$newtext])"
610 Return the current selection text and optionally replace it by \f(CW$newtext\fR.
611 .Sp
612 #=item \f(CW$term\fR\->overlay ($x, \f(CW$y\fR, \f(CW$text\fR)
613 #
614 #Create a simple multi-line overlay box. See the next method for details.
615 #
616 #=cut
617 #
618 #sub urxvt::term::scr_overlay {
619 # my ($self, \f(CW$x\fR, \f(CW$y\fR, \f(CW$text\fR) = \f(CW@_\fR;
620 #
621 # my \f(CW@lines\fR = split /\en/, \f(CW$text\fR;
622 #
623 # my \f(CW$w\fR = 0;
624 # for (map \f(CW$self\fR\->strwidth ($_), \f(CW@lines\fR) {
625 # \f(CW$w\fR = \f(CW$_\fR if \f(CW$w\fR < \f(CW$_\fR;
626 # }
627 #
628 # \f(CW$self\fR\->scr_overlay_new ($x, \f(CW$y\fR, \f(CW$w\fR, scalar \f(CW@lines\fR);
629 # \f(CW$self\fR\->scr_overlay_set (0, \f(CW$_\fR, \f(CW$lines\fR[$_]) for 0.. $#lines;
630 #}
631 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
632 .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
633 .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
634 Create a new (empty) overlay at the given position with the given
635 width/height. \f(CW$rstyle\fR defines the initial rendition style
636 (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
637 .Sp
638 If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
639 around the box.
640 .Sp
641 If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
642 right/bottom side, respectively.
643 .Sp
644 This method returns an urxvt::overlay object. The overlay will be visible
645 as long as the perl object is referenced.
646 .Sp
647 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
648 .RS 4
649 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
650 .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
651 .IX Item "$overlay->set ($x, $y, $text, $rend)"
652 Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
653 text in rxvt\-unicode's special encoding and an array of rendition values
654 at a specific position inside the overlay.
655 .IP "$overlay\->hide" 4
656 .IX Item "$overlay->hide"
657 If visible, hide the overlay, but do not destroy it.
658 .IP "$overlay\->show" 4
659 .IX Item "$overlay->show"
660 If hidden, display the overlay again.
661 .RE
662 .RS 4
663 .RE
664 .ie n .IP "$popup = $term\->popup ($event)" 4
665 .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
666 .IX Item "$popup = $term->popup ($event)"
667 Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
668 \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
669 currently).
670 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
671 .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
672 .IX Item "$cellwidth = $term->strwidth ($string)"
673 Returns the number of screen-cells this string would need. Correctly
674 accounts for wide and combining characters.
675 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
676 .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
677 .IX Item "$octets = $term->locale_encode ($string)"
678 Convert the given text string into the corresponding locale encoding.
679 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
680 .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
681 .IX Item "$string = $term->locale_decode ($octets)"
682 Convert the given locale-encoded octets into a perl string.
683 .IP "$term\->scr_add_lines ($string)" 4
684 .IX Item "$term->scr_add_lines ($string)"
685 Write the given text string to the screen, as if output by the application
686 running inside the terminal. It may not contain command sequences (escape
687 codes), but is free to use line feeds, carriage returns and tabs. The
688 string is a normal text string, not in locale-dependent encoding.
689 .Sp
690 Normally its not a good idea to use this function, as programs might be
691 confused by changes in cursor position or scrolling. Its useful inside a
692 \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
693 .IP "$term\->cmd_parse ($octets)" 4
694 .IX Item "$term->cmd_parse ($octets)"
695 Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
696 locale-specific encoding of the terminal and can contain command sequences
697 (escape codes) that will be interpreted.
698 .IP "$term\->tt_write ($octets)" 4
699 .IX Item "$term->tt_write ($octets)"
700 Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
701 pass characters instead of octets, you should convert your strings first
702 to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
703 .ie n .IP "$windowid = $term\->parent" 4
704 .el .IP "$windowid = \f(CW$term\fR\->parent" 4
705 .IX Item "$windowid = $term->parent"
706 Return the window id of the toplevel window.
707 .ie n .IP "$windowid = $term\->vt" 4
708 .el .IP "$windowid = \f(CW$term\fR\->vt" 4
709 .IX Item "$windowid = $term->vt"
710 Return the window id of the terminal window.
711 .ie n .IP "$window_width = $term\->width" 4
712 .el .IP "$window_width = \f(CW$term\fR\->width" 4
713 .IX Item "$window_width = $term->width"
714 .PD 0
715 .ie n .IP "$window_height = $term\->height" 4
716 .el .IP "$window_height = \f(CW$term\fR\->height" 4
717 .IX Item "$window_height = $term->height"
718 .ie n .IP "$font_width = $term\->fwidth" 4
719 .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
720 .IX Item "$font_width = $term->fwidth"
721 .ie n .IP "$font_height = $term\->fheight" 4
722 .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
723 .IX Item "$font_height = $term->fheight"
724 .ie n .IP "$font_ascent = $term\->fbase" 4
725 .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
726 .IX Item "$font_ascent = $term->fbase"
727 .ie n .IP "$terminal_rows = $term\->nrow" 4
728 .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
729 .IX Item "$terminal_rows = $term->nrow"
730 .ie n .IP "$terminal_columns = $term\->ncol" 4
731 .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
732 .IX Item "$terminal_columns = $term->ncol"
733 .ie n .IP "$has_focus = $term\->focus" 4
734 .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
735 .IX Item "$has_focus = $term->focus"
736 .ie n .IP "$is_mapped = $term\->mapped" 4
737 .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
738 .IX Item "$is_mapped = $term->mapped"
739 .ie n .IP "$max_scrollback = $term\->saveLines" 4
740 .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
741 .IX Item "$max_scrollback = $term->saveLines"
742 .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
743 .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
744 .IX Item "$nrow_plus_saveLines = $term->total_rows"
745 .ie n .IP "$lines_in_scrollback = $term\->nsaved" 4
746 .el .IP "$lines_in_scrollback = \f(CW$term\fR\->nsaved" 4
747 .IX Item "$lines_in_scrollback = $term->nsaved"
748 .PD
749 Return various integers describing terminal characteristics.
750 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
751 .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
752 .IX Item "$modifiermask = $term->ModLevel3Mask"
753 .PD 0
754 .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
755 .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
756 .IX Item "$modifiermask = $term->ModMetaMask"
757 .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
758 .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
759 .IX Item "$modifiermask = $term->ModNumLockMask"
760 .PD
761 Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
762 AltGr), the meta key (often Alt) and the num lock key, if applicable.
763 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
764 .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
765 .IX Item "$view_start = $term->view_start ([$newvalue])"
766 Returns the negative row number of the topmost line. Minimum value is
767 \&\f(CW0\fR, which displays the normal terminal contents. Larger values scroll
768 this many lines into the scrollback buffer.
769 .IP "$term\->want_refresh" 4
770 .IX Item "$term->want_refresh"
771 Requests a screen refresh. At the next opportunity, rxvt-unicode will
772 compare the on-screen display with its stored representation. If they
773 differ, it redraws the differences.
774 .Sp
775 Used after changing terminal contents to display them.
776 .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
777 .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
778 .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
779 Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
780 is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
781 terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
782 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
783 is requested.
784 .Sp
785 If \f(CW$new_text\fR is specified, it will replace characters in the current
786 line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
787 to replace only parts of a line. The font index in the rendition will
788 automatically be updated.
789 .Sp
790 \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
791 than one cell when displayed are padded with urxvt::NOCHAR characters
792 (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
793 that do not fit into the normal tetx encoding will be replaced with
794 characters in the private use area.
795 .Sp
796 You have to obey this encoding when changing text. The advantage is
797 that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
798 characters.
799 .Sp
800 The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
801 can be used to convert normal strings into this encoding and vice versa.
802 .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
803 .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
804 .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
805 Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
806 bitsets. Rendition bitsets contain information about colour, font, font
807 styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
808 .Sp
809 When setting rendition, the font mask will be ignored.
810 .Sp
811 See the section on \s-1RENDITION\s0, above.
812 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
813 .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
814 .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
815 Returns the number of screen cells that are in use (\*(L"the line
816 length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
817 line is joined with the following one.
818 .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
819 .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
820 .IX Item "$bool = $term->is_longer ($row_number)"
821 Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
822 joined with the following row), which means all characters are in use
823 and it is continued on the next row (and possibly a continuation of the
824 previous row(s)).
825 .ie n .IP "$line = $term\->line ($row_number)" 4
826 .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
827 .IX Item "$line = $term->line ($row_number)"
828 Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
829 about the logical line that row \f(CW$row_number\fR is part of. It supports the
830 following methods:
831 .RS 4
832 .ie n .IP "$text = $line\->t ([$new_text])" 4
833 .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
834 .IX Item "$text = $line->t ([$new_text])"
835 Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
836 .ie n .IP "$rend = $line\->r ([$new_rend])" 4
837 .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
838 .IX Item "$rend = $line->r ([$new_rend])"
839 Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
840 .ie n .IP "$length = $line\->l" 4
841 .el .IP "$length = \f(CW$line\fR\->l" 4
842 .IX Item "$length = $line->l"
843 Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
844 .ie n .IP "$rownum = $line\->beg" 4
845 .el .IP "$rownum = \f(CW$line\fR\->beg" 4
846 .IX Item "$rownum = $line->beg"
847 .PD 0
848 .ie n .IP "$rownum = $line\->end" 4
849 .el .IP "$rownum = \f(CW$line\fR\->end" 4
850 .IX Item "$rownum = $line->end"
851 .PD
852 Return the row number of the first/last row of the line, respectively.
853 .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
854 .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
855 .IX Item "$offset = $line->offset_of ($row, $col)"
856 Returns the character offset of the given row|col pair within the logical
857 line.
858 .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
859 .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
860 .IX Item "($row, $col) = $line->coord_of ($offset)"
861 Translates a string offset into terminal coordinates again.
862 .RE
863 .RS 4
864 .RE
865 .ie n .IP "($row, $col\fR) = \f(CW$line\fR\->coord_of ($offset) =item \f(CW$text\fR = \f(CW$term\fR\->special_encode \f(CW$string" 4
866 .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset) =item \f(CW$text\fR = \f(CW$term\fR\->special_encode \f(CW$string\fR" 4
867 .IX Item "($row, $col) = $line->coord_of ($offset) =item $text = $term->special_encode $string"
868 Converts a perl string into the special encoding used by rxvt\-unicode,
869 where one character corresponds to one screen cell. See
870 \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
871 .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
872 .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
873 .IX Item "$string = $term->special_decode $text"
874 Converts rxvt-unicodes text reprsentation into a perl string. See
875 \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
876 .ie n .Sh "The ""urxvt::popup"" Class"
877 .el .Sh "The \f(CWurxvt::popup\fP Class"
878 .IX Subsection "The urxvt::popup Class"
879 .ie n .Sh "The ""urxvt::timer"" Class"
880 .el .Sh "The \f(CWurxvt::timer\fP Class"
881 .IX Subsection "The urxvt::timer Class"
882 .RS 4
883 This class implements timer watchers/events. Time is represented as a
884 fractional number of seconds since the epoch. Example:
885 .Sp
886 .Vb 8
887 \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
888 \& $term->{timer} = urxvt::timer
889 \& ->new
890 \& ->interval (1)
891 \& ->cb (sub {
892 \& $term->{overlay}->set (0, 0,
893 \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
894 \& });
895 .Ve
896 .IP "$timer = new urxvt::timer" 4
897 .IX Item "$timer = new urxvt::timer"
898 Create a new timer object in started state. It is scheduled to fire
899 immediately.
900 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
901 .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
902 .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
903 Set the callback to be called when the timer triggers.
904 .ie n .IP "$tstamp = $timer\->at" 4
905 .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
906 .IX Item "$tstamp = $timer->at"
907 Return the time this watcher will fire next.
908 .ie n .IP "$timer = $timer\->set ($tstamp)" 4
909 .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
910 .IX Item "$timer = $timer->set ($tstamp)"
911 Set the time the event is generated to \f(CW$tstamp\fR.
912 .ie n .IP "$timer = $timer\->interval ($interval)" 4
913 .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
914 .IX Item "$timer = $timer->interval ($interval)"
915 Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
916 stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
917 is automatically rescheduled at the given intervals.
918 .ie n .IP "$timer = $timer\->start" 4
919 .el .IP "$timer = \f(CW$timer\fR\->start" 4
920 .IX Item "$timer = $timer->start"
921 Start the timer.
922 .ie n .IP "$timer = $timer\->start ($tstamp)" 4
923 .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
924 .IX Item "$timer = $timer->start ($tstamp)"
925 Set the event trigger time to \f(CW$tstamp\fR and start the timer.
926 .ie n .IP "$timer = $timer\->stop" 4
927 .el .IP "$timer = \f(CW$timer\fR\->stop" 4
928 .IX Item "$timer = $timer->stop"
929 Stop the timer.
930 .RE
931 .RS 4
932 .ie n .Sh "The ""urxvt::iow"" Class"
933 .el .Sh "The \f(CWurxvt::iow\fP Class"
934 .IX Subsection "The urxvt::iow Class"
935 This class implements io watchers/events. Example:
936 .Sp
937 .Vb 12
938 \& $term->{socket} = ...
939 \& $term->{iow} = urxvt::iow
940 \& ->new
941 \& ->fd (fileno $term->{socket})
942 \& ->events (1) # wait for read data
943 \& ->start
944 \& ->cb (sub {
945 \& my ($iow, $revents) = @_;
946 \& # $revents must be 1 here, no need to check
947 \& sysread $term->{socket}, my $buf, 8192
948 \& or end-of-file;
949 \& });
950 .Ve
951 .IP "$iow = new urxvt::iow" 4
952 .IX Item "$iow = new urxvt::iow"
953 Create a new io watcher object in stopped state.
954 .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
955 .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
956 .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
957 Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
958 is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
959 .ie n .IP "$iow = $iow\->fd ($fd)" 4
960 .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
961 .IX Item "$iow = $iow->fd ($fd)"
962 Set the filedescriptor (not handle) to watch.
963 .ie n .IP "$iow = $iow\->events ($eventmask)" 4
964 .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
965 .IX Item "$iow = $iow->events ($eventmask)"
966 Set the event mask to watch. Bit #0 (value \f(CW1\fR) enables watching for read
967 data, Bit #1 (value \f(CW2\fR) enables watching for write data.
968 .ie n .IP "$iow = $iow\->start" 4
969 .el .IP "$iow = \f(CW$iow\fR\->start" 4
970 .IX Item "$iow = $iow->start"
971 Start watching for requested events on the given handle.
972 .ie n .IP "$iow = $iow\->stop" 4
973 .el .IP "$iow = \f(CW$iow\fR\->stop" 4
974 .IX Item "$iow = $iow->stop"
975 Stop watching for events on the given filehandle.
976 .RE
977 .RS 4
978 .SH "ENVIRONMENT"
979 .IX Header "ENVIRONMENT"
980 .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
981 .IX Subsection "URXVT_PERL_VERBOSITY"
982 This variable controls the verbosity level of the perl extension. Higher
983 numbers indicate more verbose output.
984 .IP "=0 \- only fatal messages" 4
985 .IX Item "=0 - only fatal messages"
986 .PD 0
987 .IP "=3 \- script loading and management" 4
988 .IX Item "=3 - script loading and management"
989 .IP "=10 \- all events received" 4
990 .IX Item "=10 - all events received"
991 .RE
992 .RS 4
993 .PD
994 .SH "AUTHOR"
995 .IX Header "AUTHOR"
996 .Vb 2
997 \& Marc Lehmann <pcg@goof.com>
998 \& http://software.schmorp.de/pkg/rxvt-unicode
999 .Ve