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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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131     .IX Title "rxvt 3"
132 root 1.15 .TH rxvt 3 "2006-01-08" "6.3" "RXVT-UNICODE"
133 root 1.1 .SH "NAME"
134 root 1.5 @@RXVT_NAME@@perl \- rxvt\-unicode's embedded perl interpreter
135 root 1.1 .SH "SYNOPSIS"
136     .IX Header "SYNOPSIS"
137 root 1.5 .Vb 1
138     \& # create a file grab_test in $HOME:
139     .Ve
140 root 1.1 .PP
141     .Vb 4
142     \& sub on_sel_grab {
143     \& warn "you selected ", $_[0]->selection;
144     \& ()
145     \& }
146     .Ve
147     .PP
148     .Vb 1
149 root 1.5 \& # start a @@RXVT_NAME@@ using it:
150     .Ve
151     .PP
152     .Vb 1
153     \& @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
154 root 1.1 .Ve
155     .SH "DESCRIPTION"
156     .IX Header "DESCRIPTION"
157 root 1.15 Everytime a terminal object gets created, extension scripts specified via
158     the \f(CW\*(C`perl\*(C'\fR resource are loaded and associated with it.
159 root 1.5 .PP
160     Scripts are compiled in a 'use strict' and 'use utf8' environment, and
161     thus must be encoded as \s-1UTF\-8\s0.
162 root 1.3 .PP
163     Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
164 root 1.7 scripts will be shared (but not enabled) for all terminals.
165     .Sh "Prepackaged Extensions"
166     .IX Subsection "Prepackaged Extensions"
167 root 1.6 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 root 1.10 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 root 1.9 .Sp
182     It also offers the following bindable event:
183 root 1.6 .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 root 1.8 Displays a digital clock using the built-in overlay.
197 root 1.14 .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 root 1.8 .IP "example-refresh-hooks" 4
206     .IX Item "example-refresh-hooks"
207 root 1.6 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 root 1.3 .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 root 1.9 \&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and \fB\s-1MUST\s0 \s-1NOT\s0\fR be accessed or
216 root 1.3 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 root 1.14 .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 root 1.1 .Sh "Hooks"
239     .IX Subsection "Hooks"
240 root 1.14 The following subroutines can be declared in extension files, and will be
241 root 1.9 called whenever the relevant event happens.
242     .PP
243     The first argument passed to them is an object private to each terminal
244 root 1.15 and extension package. You can call all \f(CW\*(C`urxvt::term\*(C'\fR methods on it, but
245 root 1.9 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 root 1.15 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 root 1.1 .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 root 1.14 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 root 1.1 .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 root 1.9 .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 root 1.1 .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 root 1.11 .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 root 1.14 .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 root 1.1 .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 root 1.5 .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 root 1.15 .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 root 1.14 .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 root 1.15 .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, $event"
404 root 1.14 .PD
405     Called whenever the corresponding X event is received for the terminal If
406     the hook returns true, then the even will be ignored by rxvt\-unicode.
407     .Sp
408     The event is a hash with most values as named by Xlib (see the XEvent
409     manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
410     and column under the mouse cursor.
411     .Sp
412     \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
413     output, if any, in locale-specific encoding.
414     .Sp
415     subwindow.
416 root 1.9 .ie n .Sh "Variables in the ""urxvt"" Package"
417     .el .Sh "Variables in the \f(CWurxvt\fP Package"
418     .IX Subsection "Variables in the urxvt Package"
419     .IP "$urxvt::TERM" 4
420     .IX Item "$urxvt::TERM"
421 root 1.14 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
422     object, whenever a callback/hook is executing.
423 root 1.1 .ie n .Sh "Functions in the ""urxvt"" Package"
424     .el .Sh "Functions in the \f(CWurxvt\fP Package"
425     .IX Subsection "Functions in the urxvt Package"
426 root 1.14 .IP "$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 root 1.1 .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 $string"
442 root 1.3 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
443 root 1.1 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
444     that calls this function.
445     .Sp
446     Using this function has the advantage that its output ends up in the
447     correct place, e.g. on stderr of the connecting urxvtc client.
448     .IP "$time = urxvt::NOW" 4
449     .IX Item "$time = urxvt::NOW"
450     Returns the \*(L"current time\*(R" (as per the event loop).
451 root 1.15 .IP "urxvt::CurrentTime" 4
452     .IX Item "urxvt::CurrentTime"
453     .PD 0
454     .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
455     .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
456     .PD
457     Various constants for use in X events.
458 root 1.8 .Sh "\s-1RENDITION\s0"
459     .IX Subsection "RENDITION"
460     Rendition bitsets contain information about colour, font, font styles and
461     similar information for each screen cell.
462     .PP
463     The following \*(L"macros\*(R" deal with changes in rendition sets. You should
464     never just create a bitset, you should always modify an existing one,
465     as they contain important information required for correct operation of
466     rxvt\-unicode.
467     .IP "$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, $new_value)"
506     Change the custom value.
507 root 1.1 .ie n .Sh "The ""urxvt::term"" Class"
508     .el .Sh "The \f(CWurxvt::term\fP Class"
509     .IX Subsection "The urxvt::term Class"
510 root 1.14 .IP "$term\->destroy" 4
511     .IX Item "$term->destroy"
512     Destroy the terminal object (close the window, free resources etc.).
513 root 1.15 .ie n .IP "$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 root 1.2 .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 root 1.15 are supported in every build, please see the source file \fI/src/rsinc.h\fR
551     to see the actual list:
552 root 1.2 .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 root 1.4 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
559 root 1.12 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
560 root 1.3 \& 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 root 1.2 .Ve
567 root 1.14 .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 root 1.13 .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, $col])"
575     Return the current coordinates of the text cursor position and optionally
576     set it (which is usually bad as applications don't expect that).
577 root 1.1 .ie n .IP "($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$newtext\fR.
599 root 1.8 .Sp
600     #=item \f(CW$term\fR\->overlay ($x, \f(CW$y\fR, \f(CW$text\fR)
601     #
602     #Create a simple multi-line overlay box. See the next method for details.
603     #
604     #=cut
605 root 1.14 #
606     #sub urxvt::term::scr_overlay {
607     # my ($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.. $#lines;
618     #}
619 root 1.8 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
620     .el .IP "$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[, $border]])"
622 root 1.1 Create a new (empty) overlay at the given position with the given
623 root 1.8 width/height. \f(CW$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$y\fR is negative, then this is counted from the
630     right/bottom side, respectively.
631     .Sp
632     This method returns an urxvt::overlay object. The overlay will be visible
633     as long as the perl object is referenced.
634     .Sp
635 root 1.9 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
636     .RS 4
637 root 1.8 .ie n .IP "$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`$term\->ROW_r\*(C'\fR in that it puts
641     text in rxvt\-unicode's special encoding and an array of rendition values
642     at a specific position inside the overlay.
643 root 1.9 .IP "$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 "$overlay->show"
648     If hidden, display the overlay again.
649     .RE
650     .RS 4
651     .RE
652 root 1.15 .ie n .IP "$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$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
657     currently).
658 root 1.14 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
659     .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
660     .IX Item "$cellwidth = $term->strwidth ($string)"
661 root 1.3 Returns the number of screen-cells this string would need. Correctly
662     accounts for wide and combining characters.
663 root 1.14 .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 root 1.3 Convert the given text string into the corresponding locale encoding.
667 root 1.14 .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 root 1.3 Convert the given locale-encoded octets into a perl string.
671 root 1.14 .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 root 1.3 .IP "$term\->tt_write ($octets)" 4
687     .IX Item "$term->tt_write ($octets)"
688     Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
689 root 1.6 pass characters instead of octets, you should convert your strings first
690     to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
691 root 1.14 .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 = $term->vt"
698     Return the window id of the terminal window.
699 root 1.13 .ie n .IP "$window_width = $term\->width" 4
700     .el .IP "$window_width = \f(CW$term\fR\->width" 4
701     .IX Item "$window_width = $term->width"
702 root 1.6 .PD 0
703 root 1.13 .ie n .IP "$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 = $term->nsaved"
736 root 1.6 .PD
737 root 1.13 Return various integers describing terminal characteristics.
738 root 1.15 .ie n .IP "$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 = $term->ModNumLockMask"
748     .PD
749     Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
750     AltGr), the meta key (often Alt) and the num lock key, if applicable.
751 root 1.6 .ie n .IP "$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 root 1.9 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
771     is requested.
772 root 1.6 .Sp
773     If \f(CW$new_text\fR is specified, it will replace characters in the current
774     line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
775 root 1.8 to replace only parts of a line. The font index in the rendition will
776 root 1.6 automatically be updated.
777     .Sp
778     \&\f(CW$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`$term\->ROW_t\*(C'\fR.
796     .Sp
797     When setting rendition, the font mask will be ignored.
798     .Sp
799 root 1.8 See the section on \s-1RENDITION\s0, above.
800 root 1.6 .ie n .IP "$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[, $new_length])"
803 root 1.9 Returns the number of screen cells that are in use (\*(L"the line
804     length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$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$row_number\fR is part of. It supports the
818     following methods:
819     .RS 4
820 root 1.14 .ie n .IP "$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 root 1.9 .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 $string"
856 root 1.6 Converts a perl string into the special encoding used by rxvt\-unicode,
857     where one character corresponds to one screen cell. See
858     \&\f(CW\*(C`$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 root 1.15 .ie n .Sh "The ""urxvt::popup"" Class"
865     .el .Sh "The \f(CWurxvt::popup\fP Class"
866     .IX Subsection "The urxvt::popup Class"
867 root 1.1 .ie n .Sh "The ""urxvt::timer"" Class"
868     .el .Sh "The \f(CWurxvt::timer\fP Class"
869     .IX Subsection "The urxvt::timer Class"
870 root 1.15 .RS 4
871 root 1.1 This class implements timer watchers/events. Time is represented as a
872     fractional number of seconds since the epoch. Example:
873 root 1.15 .Sp
874 root 1.8 .Vb 8
875     \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
876 root 1.1 \& $term->{timer} = urxvt::timer
877     \& ->new
878 root 1.8 \& ->interval (1)
879 root 1.1 \& ->cb (sub {
880 root 1.8 \& $term->{overlay}->set (0, 0,
881     \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
882 root 1.1 \& });
883     .Ve
884     .IP "$timer = new urxvt::timer" 4
885     .IX Item "$timer = new urxvt::timer"
886 root 1.8 Create a new timer object in started state. It is scheduled to fire
887     immediately.
888 root 1.1 .ie n .IP "$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$tstamp\fR.
900 root 1.8 .ie n .IP "$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 root 1.1 .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 root 1.15 .RE
919     .RS 4
920 root 1.1 .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 root 1.15 .Sp
925 root 1.1 .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 root 1.15 .RE
965     .RS 4
966 root 1.2 .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 root 1.10 .IP "=0 \- only fatal messages" 4
973     .IX Item "=0 - only fatal messages"
974 root 1.2 .PD 0
975 root 1.10 .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 root 1.15 .RE
980     .RS 4
981 root 1.2 .PD
982 root 1.1 .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