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Revision: 1.15
Committed: Sun Jan 8 00:20:12 2006 UTC (18 years, 6 months ago) by root
Branch: MAIN
Changes since 1.14: +80 -19 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" 4
176 .IX Item "selection"
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 "digital-clock" 4
195 .IX Item "digital-clock"
196 Displays a digital clock using the built-in overlay.
197 .IP "mark-urls" 4
198 .IX Item "mark-urls"
199 Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls.
200 .IP "block-graphics-to-ascii" 4
201 .IX Item "block-graphics-to-ascii"
202 A not very useful example of filtering all text output to the terminal,
203 by replacing all line-drawing characters (U+2500 .. U+259F) by a
204 similar-looking ascii character.
205 .IP "example-refresh-hooks" 4
206 .IX Item "example-refresh-hooks"
207 Displays a very simple digital clock in the upper right corner of the
208 window. Illustrates overwriting the refresh callbacks to create your own
209 overlays or changes.
210 .Sh "General \s-1API\s0 Considerations"
211 .IX Subsection "General API Considerations"
212 All objects (such as terminals, time watchers etc.) are typical
213 reference-to-hash objects. The hash can be used to store anything you
214 like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
215 \&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and \fB\s-1MUST\s0 \s-1NOT\s0\fR be accessed or
216 modified).
217 .PP
218 When objects are destroyed on the \*(C+ side, the perl object hashes are
219 emptied, so its best to store related objects such as time watchers and
220 the like inside the terminal object so they get destroyed as soon as the
221 terminal is destroyed.
222 .PP
223 Argument names also often indicate the type of a parameter. Here are some
224 hints on what they mean:
225 .IP "$text" 4
226 .IX Item "$text"
227 Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
228 always represents one screen cell. See row_t for a discussion of this format.
229 .IP "$string" 4
230 .IX Item "$string"
231 A perl text string, with an emphasis on \fItext\fR. It can store all unicode
232 characters and is to be distinguished with text encoded in a specific
233 encoding (often locale\-specific) and binary data.
234 .IP "$octets" 4
235 .IX Item "$octets"
236 Either binary data or \- more common \- a text string encoded in a
237 locale-specific way.
238 .Sh "Hooks"
239 .IX Subsection "Hooks"
240 The following subroutines can be declared in extension files, and will be
241 called whenever the relevant event happens.
242 .PP
243 The first argument passed to them is an object private to each terminal
244 and extension package. You can call all \f(CW\*(C`urxvt::term\*(C'\fR methods on it, but
245 its not a real \f(CW\*(C`urxvt::term\*(C'\fR object. Instead, the real \f(CW\*(C`urxvt::term\*(C'\fR
246 object that is shared between all packages is stored in the \f(CW\*(C`term\*(C'\fR
247 member. It is, however, blessed intot he package of the extension script,
248 so for all practical purposes you can treat an extension script as a class.
249 .PP
250 All of them must return a boolean value. If it is true, then the event
251 counts as being \fIconsumed\fR, and the invocation of other hooks is skipped,
252 and the relevant action might not be carried out by the \*(C+ code.
253 .PP
254 When in doubt, return a false value (preferably \f(CW\*(C`()\*(C'\fR).
255 .ie n .IP "on_init $term" 4
256 .el .IP "on_init \f(CW$term\fR" 4
257 .IX Item "on_init $term"
258 Called after a new terminal object has been initialized, but before
259 windows are created or the command gets run. Most methods are unsafe to
260 call or deliver senseless data, as terminal size and other characteristics
261 have not yet been determined. You can safely query and change resources,
262 though.
263 .ie n .IP "on_reset $term" 4
264 .el .IP "on_reset \f(CW$term\fR" 4
265 .IX Item "on_reset $term"
266 Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
267 control sequences. Here is where you can react on changes to size-related
268 variables.
269 .ie n .IP "on_start $term" 4
270 .el .IP "on_start \f(CW$term\fR" 4
271 .IX Item "on_start $term"
272 Called at the very end of initialisation of a new terminal, just before
273 returning to the mainloop.
274 .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
275 .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
276 .IX Item "on_sel_make $term, $eventtime"
277 Called whenever a selection has been made by the user, but before the
278 selection text is copied, so changes to the beginning, end or type of the
279 selection will be honored.
280 .Sp
281 Returning a true value aborts selection making by urxvt, in which case you
282 have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
283 .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
284 .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
285 .IX Item "on_sel_grab $term, $eventtime"
286 Called whenever a selection has been copied, but before the selection is
287 requested from the server. The selection text can be queried and changed
288 by calling \f(CW\*(C`$term\->selection\*(C'\fR.
289 .Sp
290 Returning a true value aborts selection grabbing. It will still be hilighted.
291 .ie n .IP "on_sel_extend $term" 4
292 .el .IP "on_sel_extend \f(CW$term\fR" 4
293 .IX Item "on_sel_extend $term"
294 Called whenever the user tries to extend the selection (e.g. with a double
295 click) and is either supposed to return false (normal operation), or
296 should extend the selection itelf and return true to suppress the built-in
297 processing.
298 .Sp
299 See the \fIselection\fR example extension.
300 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
301 .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
302 .IX Item "on_view_change $term, $offset"
303 Called whenever the view offset changes, i..e the user or program
304 scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
305 show this many lines of scrollback.
306 .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
307 .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
308 .IX Item "on_scroll_back $term, $lines, $saved"
309 Called whenever lines scroll out of the terminal area into the scrollback
310 buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
311 than the scroll back buffer or the terminal.
312 .Sp
313 It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
314 \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
315 number of lines that will be in the scrollback buffer.
316 .ie n .IP "on_tty_activity $term *NYI*" 4
317 .el .IP "on_tty_activity \f(CW$term\fR *NYI*" 4
318 .IX Item "on_tty_activity $term *NYI*"
319 Called whenever the program(s) running in the urxvt window send output.
320 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
321 .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
322 .IX Item "on_osc_seq $term, $string"
323 Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
324 operating system command) is processed. Cursor position and other state
325 information is up-to-date when this happens. For interoperability, the
326 string should start with the extension name and a colon, to distinguish
327 it from commands for other extensions, and this might be enforced in the
328 future.
329 .Sp
330 Be careful not ever to trust (in a security sense) the data you receive,
331 as its source can not easily be controleld (e\-mail content, messages from
332 other users on the same system etc.).
333 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
334 .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
335 .IX Item "on_add_lines $term, $string"
336 Called whenever text is about to be output, with the text as argument. You
337 can filter/change and output the text yourself by returning a true value
338 and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
339 might be very slow, however, as your hook is called for \fBall\fR text being
340 output.
341 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
342 .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
343 .IX Item "on_line_update $term, $row"
344 Called whenever a line was updated or changed. Can be used to filter
345 screen output (e.g. underline urls or other useless stuff). Only lines
346 that are being shown will be filtered, and, due to performance reasons,
347 not always immediately.
348 .Sp
349 The row number is always the topmost row of the line if the line spans
350 multiple rows.
351 .Sp
352 Please note that, if you change the line, then the hook might get called
353 later with the already-modified line (e.g. if unrelated parts change), so
354 you cannot just toggle rendition bits, but only set them.
355 .ie n .IP "on_refresh_begin $term" 4
356 .el .IP "on_refresh_begin \f(CW$term\fR" 4
357 .IX Item "on_refresh_begin $term"
358 Called just before the screen gets redrawn. Can be used for overlay
359 or similar effects by modify terminal contents in refresh_begin, and
360 restoring them in refresh_end. The built-in overlay and selection display
361 code is run after this hook, and takes precedence.
362 .ie n .IP "on_refresh_end $term" 4
363 .el .IP "on_refresh_end \f(CW$term\fR" 4
364 .IX Item "on_refresh_end $term"
365 Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
366 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
367 .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
368 .IX Item "on_keyboard_command $term, $string"
369 Called whenever the user presses a key combination that has a
370 \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
371 resource in the @@RXVT_NAME@@(1) manpage).
372 .ie n .IP "on_focus_in $term" 4
373 .el .IP "on_focus_in \f(CW$term\fR" 4
374 .IX Item "on_focus_in $term"
375 Called whenever the window gets the keyboard focus, before rxvt-unicode
376 does focus in processing.
377 .ie n .IP "on_focus_out $term" 4
378 .el .IP "on_focus_out \f(CW$term\fR" 4
379 .IX Item "on_focus_out $term"
380 Called wheneever the window loses keyboard focus, before rxvt-unicode does
381 focus out processing.
382 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$octets" 4
383 .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$octets\fR" 4
384 .IX Item "on_key_press $term, $event, $octets"
385 .PD 0
386 .ie n .IP "on_key_release $term\fR, \f(CW$event" 4
387 .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR" 4
388 .IX Item "on_key_release $term, $event"
389 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
390 .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
391 .IX Item "on_button_press $term, $event"
392 .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
393 .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
394 .IX Item "on_button_release $term, $event"
395 .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
396 .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
397 .IX Item "on_motion_notify $term, $event"
398 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
399 .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
400 .IX Item "on_map_notify $term, $event"
401 .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
402 .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
403 .IX Item "on_unmap_notify $term, $event"
404 .PD
405 Called whenever the corresponding X event is received for the terminal If
406 the hook returns true, then the even will be ignored by rxvt\-unicode.
407 .Sp
408 The event is a hash with most values as named by Xlib (see the XEvent
409 manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
410 and column under the mouse cursor.
411 .Sp
412 \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
413 output, if any, in locale-specific encoding.
414 .Sp
415 subwindow.
416 .ie n .Sh "Variables in the ""urxvt"" Package"
417 .el .Sh "Variables in the \f(CWurxvt\fP Package"
418 .IX Subsection "Variables in the urxvt Package"
419 .IP "$urxvt::TERM" 4
420 .IX Item "$urxvt::TERM"
421 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
422 object, whenever a callback/hook is executing.
423 .ie n .Sh "Functions in the ""urxvt"" Package"
424 .el .Sh "Functions in the \f(CWurxvt\fP Package"
425 .IX Subsection "Functions in the urxvt Package"
426 .IP "$term = new urxvt [arg...]" 4
427 .IX Item "$term = new urxvt [arg...]"
428 Creates a new terminal, very similar as if you had started it with
429 \&\f(CW\*(C`system $binfile, arg...\*(C'\fR. Croaks (and probably outputs an error message)
430 if the new instance couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new
431 instance didn't initialise perl, and the terminal object otherwise. The
432 \&\f(CW\*(C`init\*(C'\fR and \f(CW\*(C`start\*(C'\fR hooks will be called during the call.
433 .ie n .IP "urxvt::fatal $errormessage" 4
434 .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
435 .IX Item "urxvt::fatal $errormessage"
436 Fatally aborts execution with the given error message. Avoid at all
437 costs! The only time this is acceptable is when the terminal process
438 starts up.
439 .ie n .IP "urxvt::warn $string" 4
440 .el .IP "urxvt::warn \f(CW$string\fR" 4
441 .IX Item "urxvt::warn $string"
442 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
443 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
444 that calls this function.
445 .Sp
446 Using this function has the advantage that its output ends up in the
447 correct place, e.g. on stderr of the connecting urxvtc client.
448 .IP "$time = urxvt::NOW" 4
449 .IX Item "$time = urxvt::NOW"
450 Returns the \*(L"current time\*(R" (as per the event loop).
451 .IP "urxvt::CurrentTime" 4
452 .IX Item "urxvt::CurrentTime"
453 .PD 0
454 .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
455 .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
456 .PD
457 Various constants for use in X events.
458 .Sh "\s-1RENDITION\s0"
459 .IX Subsection "RENDITION"
460 Rendition bitsets contain information about colour, font, font styles and
461 similar information for each screen cell.
462 .PP
463 The following \*(L"macros\*(R" deal with changes in rendition sets. You should
464 never just create a bitset, you should always modify an existing one,
465 as they contain important information required for correct operation of
466 rxvt\-unicode.
467 .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
468 .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
469 Returns the default rendition, as used when the terminal is starting up or
470 being reset. Useful as a base to start when creating renditions.
471 .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
472 .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
473 Return the rendition mask used for overlays by default.
474 .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
475 .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
476 Return the bit that enabled bold, italic, blink, reverse-video and
477 underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
478 the bitset.
479 .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
480 .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
481 .IX Item "$foreground = urxvt::GET_BASEFG $rend"
482 .PD 0
483 .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
484 .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
485 .IX Item "$background = urxvt::GET_BASEBG $rend"
486 .PD
487 Return the foreground/background colour index, respectively.
488 .ie n .IP "$rend = urxvt::SET_FGCOLOR ($rend, $new_colour)" 4
489 .el .IP "$rend = urxvt::SET_FGCOLOR ($rend, \f(CW$new_colour\fR)" 4
490 .IX Item "$rend = urxvt::SET_FGCOLOR ($rend, $new_colour)"
491 .PD 0
492 .ie n .IP "$rend = urxvt::SET_BGCOLOR ($rend, $new_colour)" 4
493 .el .IP "$rend = urxvt::SET_BGCOLOR ($rend, \f(CW$new_colour\fR)" 4
494 .IX Item "$rend = urxvt::SET_BGCOLOR ($rend, $new_colour)"
495 .PD
496 Replace the foreground/background colour in the rendition mask with the
497 specified one.
498 .IP "$value = urxvt::GET_CUSTOM ($rend)" 4
499 .IX Item "$value = urxvt::GET_CUSTOM ($rend)"
500 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
501 extensions. They can be set and changed as you like and are initially
502 zero.
503 .ie n .IP "$rend = urxvt::SET_CUSTOM ($rend, $new_value)" 4
504 .el .IP "$rend = urxvt::SET_CUSTOM ($rend, \f(CW$new_value\fR)" 4
505 .IX Item "$rend = urxvt::SET_CUSTOM ($rend, $new_value)"
506 Change the custom value.
507 .ie n .Sh "The ""urxvt::term"" Class"
508 .el .Sh "The \f(CWurxvt::term\fP Class"
509 .IX Subsection "The urxvt::term Class"
510 .IP "$term\->destroy" 4
511 .IX Item "$term->destroy"
512 Destroy the terminal object (close the window, free resources etc.).
513 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
514 .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
515 .IX Item "$isset = $term->option ($optval[, $set])"
516 Returns true if the option specified by \f(CW$optval\fR is enabled, and
517 optionally change it. All option values are stored by name in the hash
518 \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
519 .Sp
520 Here is a a likely non-exhaustive list of option names, please see the
521 source file \fI/src/optinc.h\fR to see the actual list:
522 .Sp
523 .Vb 6
524 \& borderLess console cursorBlink cursorUnderline hold iconic insecure
525 \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
526 \& pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
527 \& scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
528 \& secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
529 \& tripleclickwords utmpInhibit visualBell
530 .Ve
531 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
532 .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
533 .IX Item "$value = $term->resource ($name[, $newval])"
534 Returns the current resource value associated with a given name and
535 optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
536 hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
537 .Sp
538 The new value must be properly encoded to a suitable character encoding
539 before passing it to this method. Similarly, the returned value may need
540 to be converted from the used encoding to text.
541 .Sp
542 Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
543 as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
544 likely change).
545 .Sp
546 Please note that resource strings will currently only be freed when the
547 terminal is destroyed, so changing options frequently will eat memory.
548 .Sp
549 Here is a a likely non-exhaustive list of resource names, not all of which
550 are supported in every build, please see the source file \fI/src/rsinc.h\fR
551 to see the actual list:
552 .Sp
553 .Vb 12
554 \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
555 \& borderLess color cursorBlink cursorUnderline cutchars delete_key
556 \& display_name embed ext_bwidth fade font geometry hold iconName
557 \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
558 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
559 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
560 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
561 \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
562 \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
563 \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
564 \& shade term_name title transparent transparent_all tripleclickwords
565 \& utmpInhibit visualBell
566 .Ve
567 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
568 .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
569 .IX Item "$rend = $term->rstyle ([$new_rstyle])"
570 Return and optionally change the current rendition. Text that is output by
571 the terminal application will use this style.
572 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
573 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
574 .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
575 Return the current coordinates of the text cursor position and optionally
576 set it (which is usually bad as applications don't expect that).
577 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
578 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
579 .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
580 .PD 0
581 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
582 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
583 .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
584 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
585 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
586 .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
587 .PD
588 Return the current values of the selection mark, begin or end positions,
589 and optionally set them to new values.
590 .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
591 .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
592 .IX Item "$success = $term->selection_grab ($eventtime)"
593 Try to request the primary selection from the server (for example, as set
594 by the next method).
595 .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
596 .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
597 .IX Item "$oldtext = $term->selection ([$newtext])"
598 Return the current selection text and optionally replace it by \f(CW$newtext\fR.
599 .Sp
600 #=item \f(CW$term\fR\->overlay ($x, \f(CW$y\fR, \f(CW$text\fR)
601 #
602 #Create a simple multi-line overlay box. See the next method for details.
603 #
604 #=cut
605 #
606 #sub urxvt::term::scr_overlay {
607 # my ($self, \f(CW$x\fR, \f(CW$y\fR, \f(CW$text\fR) = \f(CW@_\fR;
608 #
609 # my \f(CW@lines\fR = split /\en/, \f(CW$text\fR;
610 #
611 # my \f(CW$w\fR = 0;
612 # for (map \f(CW$self\fR\->strwidth ($_), \f(CW@lines\fR) {
613 # \f(CW$w\fR = \f(CW$_\fR if \f(CW$w\fR < \f(CW$_\fR;
614 # }
615 #
616 # \f(CW$self\fR\->scr_overlay_new ($x, \f(CW$y\fR, \f(CW$w\fR, scalar \f(CW@lines\fR);
617 # \f(CW$self\fR\->scr_overlay_set (0, \f(CW$_\fR, \f(CW$lines\fR[$_]) for 0.. $#lines;
618 #}
619 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
620 .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
621 .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
622 Create a new (empty) overlay at the given position with the given
623 width/height. \f(CW$rstyle\fR defines the initial rendition style
624 (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
625 .Sp
626 If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
627 around the box.
628 .Sp
629 If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
630 right/bottom side, respectively.
631 .Sp
632 This method returns an urxvt::overlay object. The overlay will be visible
633 as long as the perl object is referenced.
634 .Sp
635 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
636 .RS 4
637 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
638 .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
639 .IX Item "$overlay->set ($x, $y, $text, $rend)"
640 Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
641 text in rxvt\-unicode's special encoding and an array of rendition values
642 at a specific position inside the overlay.
643 .IP "$overlay\->hide" 4
644 .IX Item "$overlay->hide"
645 If visible, hide the overlay, but do not destroy it.
646 .IP "$overlay\->show" 4
647 .IX Item "$overlay->show"
648 If hidden, display the overlay again.
649 .RE
650 .RS 4
651 .RE
652 .ie n .IP "$popup = $term\->popup ($event)" 4
653 .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
654 .IX Item "$popup = $term->popup ($event)"
655 Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
656 \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
657 currently).
658 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
659 .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
660 .IX Item "$cellwidth = $term->strwidth ($string)"
661 Returns the number of screen-cells this string would need. Correctly
662 accounts for wide and combining characters.
663 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
664 .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
665 .IX Item "$octets = $term->locale_encode ($string)"
666 Convert the given text string into the corresponding locale encoding.
667 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
668 .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
669 .IX Item "$string = $term->locale_decode ($octets)"
670 Convert the given locale-encoded octets into a perl string.
671 .IP "$term\->scr_add_lines ($string)" 4
672 .IX Item "$term->scr_add_lines ($string)"
673 Write the given text string to the screen, as if output by the application
674 running inside the terminal. It may not contain command sequences (escape
675 codes), but is free to use line feeds, carriage returns and tabs. The
676 string is a normal text string, not in locale-dependent encoding.
677 .Sp
678 Normally its not a good idea to use this function, as programs might be
679 confused by changes in cursor position or scrolling. Its useful inside a
680 \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
681 .IP "$term\->cmd_parse ($octets)" 4
682 .IX Item "$term->cmd_parse ($octets)"
683 Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
684 locale-specific encoding of the terminal and can contain command sequences
685 (escape codes) that will be interpreted.
686 .IP "$term\->tt_write ($octets)" 4
687 .IX Item "$term->tt_write ($octets)"
688 Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
689 pass characters instead of octets, you should convert your strings first
690 to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
691 .ie n .IP "$windowid = $term\->parent" 4
692 .el .IP "$windowid = \f(CW$term\fR\->parent" 4
693 .IX Item "$windowid = $term->parent"
694 Return the window id of the toplevel window.
695 .ie n .IP "$windowid = $term\->vt" 4
696 .el .IP "$windowid = \f(CW$term\fR\->vt" 4
697 .IX Item "$windowid = $term->vt"
698 Return the window id of the terminal window.
699 .ie n .IP "$window_width = $term\->width" 4
700 .el .IP "$window_width = \f(CW$term\fR\->width" 4
701 .IX Item "$window_width = $term->width"
702 .PD 0
703 .ie n .IP "$window_height = $term\->height" 4
704 .el .IP "$window_height = \f(CW$term\fR\->height" 4
705 .IX Item "$window_height = $term->height"
706 .ie n .IP "$font_width = $term\->fwidth" 4
707 .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
708 .IX Item "$font_width = $term->fwidth"
709 .ie n .IP "$font_height = $term\->fheight" 4
710 .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
711 .IX Item "$font_height = $term->fheight"
712 .ie n .IP "$font_ascent = $term\->fbase" 4
713 .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
714 .IX Item "$font_ascent = $term->fbase"
715 .ie n .IP "$terminal_rows = $term\->nrow" 4
716 .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
717 .IX Item "$terminal_rows = $term->nrow"
718 .ie n .IP "$terminal_columns = $term\->ncol" 4
719 .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
720 .IX Item "$terminal_columns = $term->ncol"
721 .ie n .IP "$has_focus = $term\->focus" 4
722 .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
723 .IX Item "$has_focus = $term->focus"
724 .ie n .IP "$is_mapped = $term\->mapped" 4
725 .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
726 .IX Item "$is_mapped = $term->mapped"
727 .ie n .IP "$max_scrollback = $term\->saveLines" 4
728 .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
729 .IX Item "$max_scrollback = $term->saveLines"
730 .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
731 .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
732 .IX Item "$nrow_plus_saveLines = $term->total_rows"
733 .ie n .IP "$lines_in_scrollback = $term\->nsaved" 4
734 .el .IP "$lines_in_scrollback = \f(CW$term\fR\->nsaved" 4
735 .IX Item "$lines_in_scrollback = $term->nsaved"
736 .PD
737 Return various integers describing terminal characteristics.
738 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
739 .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
740 .IX Item "$modifiermask = $term->ModLevel3Mask"
741 .PD 0
742 .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
743 .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
744 .IX Item "$modifiermask = $term->ModMetaMask"
745 .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
746 .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
747 .IX Item "$modifiermask = $term->ModNumLockMask"
748 .PD
749 Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
750 AltGr), the meta key (often Alt) and the num lock key, if applicable.
751 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
752 .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
753 .IX Item "$view_start = $term->view_start ([$newvalue])"
754 Returns the negative row number of the topmost line. Minimum value is
755 \&\f(CW0\fR, which displays the normal terminal contents. Larger values scroll
756 this many lines into the scrollback buffer.
757 .IP "$term\->want_refresh" 4
758 .IX Item "$term->want_refresh"
759 Requests a screen refresh. At the next opportunity, rxvt-unicode will
760 compare the on-screen display with its stored representation. If they
761 differ, it redraws the differences.
762 .Sp
763 Used after changing terminal contents to display them.
764 .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
765 .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
766 .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
767 Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
768 is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
769 terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
770 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
771 is requested.
772 .Sp
773 If \f(CW$new_text\fR is specified, it will replace characters in the current
774 line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
775 to replace only parts of a line. The font index in the rendition will
776 automatically be updated.
777 .Sp
778 \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
779 than one cell when displayed are padded with urxvt::NOCHAR characters
780 (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
781 that do not fit into the normal tetx encoding will be replaced with
782 characters in the private use area.
783 .Sp
784 You have to obey this encoding when changing text. The advantage is
785 that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
786 characters.
787 .Sp
788 The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
789 can be used to convert normal strings into this encoding and vice versa.
790 .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
791 .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
792 .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
793 Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
794 bitsets. Rendition bitsets contain information about colour, font, font
795 styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
796 .Sp
797 When setting rendition, the font mask will be ignored.
798 .Sp
799 See the section on \s-1RENDITION\s0, above.
800 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
801 .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
802 .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
803 Returns the number of screen cells that are in use (\*(L"the line
804 length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
805 line is joined with the following one.
806 .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
807 .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
808 .IX Item "$bool = $term->is_longer ($row_number)"
809 Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
810 joined with the following row), which means all characters are in use
811 and it is continued on the next row (and possibly a continuation of the
812 previous row(s)).
813 .ie n .IP "$line = $term\->line ($row_number)" 4
814 .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
815 .IX Item "$line = $term->line ($row_number)"
816 Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
817 about the logical line that row \f(CW$row_number\fR is part of. It supports the
818 following methods:
819 .RS 4
820 .ie n .IP "$text = $line\->t ([$new_text])" 4
821 .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
822 .IX Item "$text = $line->t ([$new_text])"
823 Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
824 .ie n .IP "$rend = $line\->r ([$new_rend])" 4
825 .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
826 .IX Item "$rend = $line->r ([$new_rend])"
827 Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
828 .ie n .IP "$length = $line\->l" 4
829 .el .IP "$length = \f(CW$line\fR\->l" 4
830 .IX Item "$length = $line->l"
831 Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
832 .ie n .IP "$rownum = $line\->beg" 4
833 .el .IP "$rownum = \f(CW$line\fR\->beg" 4
834 .IX Item "$rownum = $line->beg"
835 .PD 0
836 .ie n .IP "$rownum = $line\->end" 4
837 .el .IP "$rownum = \f(CW$line\fR\->end" 4
838 .IX Item "$rownum = $line->end"
839 .PD
840 Return the row number of the first/last row of the line, respectively.
841 .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
842 .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
843 .IX Item "$offset = $line->offset_of ($row, $col)"
844 Returns the character offset of the given row|col pair within the logical
845 line.
846 .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
847 .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
848 .IX Item "($row, $col) = $line->coord_of ($offset)"
849 Translates a string offset into terminal coordinates again.
850 .RE
851 .RS 4
852 .RE
853 .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
854 .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$string\fR" 4
855 .IX Item "($row, $col) = $line->coord_of ($offset) =item $text = $term->special_encode $string"
856 Converts a perl string into the special encoding used by rxvt\-unicode,
857 where one character corresponds to one screen cell. See
858 \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
859 .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
860 .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
861 .IX Item "$string = $term->special_decode $text"
862 Converts rxvt-unicodes text reprsentation into a perl string. See
863 \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
864 .ie n .Sh "The ""urxvt::popup"" Class"
865 .el .Sh "The \f(CWurxvt::popup\fP Class"
866 .IX Subsection "The urxvt::popup Class"
867 .ie n .Sh "The ""urxvt::timer"" Class"
868 .el .Sh "The \f(CWurxvt::timer\fP Class"
869 .IX Subsection "The urxvt::timer Class"
870 .RS 4
871 This class implements timer watchers/events. Time is represented as a
872 fractional number of seconds since the epoch. Example:
873 .Sp
874 .Vb 8
875 \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
876 \& $term->{timer} = urxvt::timer
877 \& ->new
878 \& ->interval (1)
879 \& ->cb (sub {
880 \& $term->{overlay}->set (0, 0,
881 \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
882 \& });
883 .Ve
884 .IP "$timer = new urxvt::timer" 4
885 .IX Item "$timer = new urxvt::timer"
886 Create a new timer object in started state. It is scheduled to fire
887 immediately.
888 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
889 .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
890 .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
891 Set the callback to be called when the timer triggers.
892 .ie n .IP "$tstamp = $timer\->at" 4
893 .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
894 .IX Item "$tstamp = $timer->at"
895 Return the time this watcher will fire next.
896 .ie n .IP "$timer = $timer\->set ($tstamp)" 4
897 .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
898 .IX Item "$timer = $timer->set ($tstamp)"
899 Set the time the event is generated to \f(CW$tstamp\fR.
900 .ie n .IP "$timer = $timer\->interval ($interval)" 4
901 .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
902 .IX Item "$timer = $timer->interval ($interval)"
903 Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
904 stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
905 is automatically rescheduled at the given intervals.
906 .ie n .IP "$timer = $timer\->start" 4
907 .el .IP "$timer = \f(CW$timer\fR\->start" 4
908 .IX Item "$timer = $timer->start"
909 Start the timer.
910 .ie n .IP "$timer = $timer\->start ($tstamp)" 4
911 .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
912 .IX Item "$timer = $timer->start ($tstamp)"
913 Set the event trigger time to \f(CW$tstamp\fR and start the timer.
914 .ie n .IP "$timer = $timer\->stop" 4
915 .el .IP "$timer = \f(CW$timer\fR\->stop" 4
916 .IX Item "$timer = $timer->stop"
917 Stop the timer.
918 .RE
919 .RS 4
920 .ie n .Sh "The ""urxvt::iow"" Class"
921 .el .Sh "The \f(CWurxvt::iow\fP Class"
922 .IX Subsection "The urxvt::iow Class"
923 This class implements io watchers/events. Example:
924 .Sp
925 .Vb 12
926 \& $term->{socket} = ...
927 \& $term->{iow} = urxvt::iow
928 \& ->new
929 \& ->fd (fileno $term->{socket})
930 \& ->events (1) # wait for read data
931 \& ->start
932 \& ->cb (sub {
933 \& my ($iow, $revents) = @_;
934 \& # $revents must be 1 here, no need to check
935 \& sysread $term->{socket}, my $buf, 8192
936 \& or end-of-file;
937 \& });
938 .Ve
939 .IP "$iow = new urxvt::iow" 4
940 .IX Item "$iow = new urxvt::iow"
941 Create a new io watcher object in stopped state.
942 .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
943 .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
944 .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
945 Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
946 is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
947 .ie n .IP "$iow = $iow\->fd ($fd)" 4
948 .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
949 .IX Item "$iow = $iow->fd ($fd)"
950 Set the filedescriptor (not handle) to watch.
951 .ie n .IP "$iow = $iow\->events ($eventmask)" 4
952 .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
953 .IX Item "$iow = $iow->events ($eventmask)"
954 Set the event mask to watch. Bit #0 (value \f(CW1\fR) enables watching for read
955 data, Bit #1 (value \f(CW2\fR) enables watching for write data.
956 .ie n .IP "$iow = $iow\->start" 4
957 .el .IP "$iow = \f(CW$iow\fR\->start" 4
958 .IX Item "$iow = $iow->start"
959 Start watching for requested events on the given handle.
960 .ie n .IP "$iow = $iow\->stop" 4
961 .el .IP "$iow = \f(CW$iow\fR\->stop" 4
962 .IX Item "$iow = $iow->stop"
963 Stop watching for events on the given filehandle.
964 .RE
965 .RS 4
966 .SH "ENVIRONMENT"
967 .IX Header "ENVIRONMENT"
968 .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
969 .IX Subsection "URXVT_PERL_VERBOSITY"
970 This variable controls the verbosity level of the perl extension. Higher
971 numbers indicate more verbose output.
972 .IP "=0 \- only fatal messages" 4
973 .IX Item "=0 - only fatal messages"
974 .PD 0
975 .IP "=3 \- script loading and management" 4
976 .IX Item "=3 - script loading and management"
977 .IP "=10 \- all events received" 4
978 .IX Item "=10 - all events received"
979 .RE
980 .RS 4
981 .PD
982 .SH "AUTHOR"
983 .IX Header "AUTHOR"
984 .Vb 2
985 \& Marc Lehmann <pcg@goof.com>
986 \& http://software.schmorp.de/pkg/rxvt-unicode
987 .Ve