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Revision: 1.21
Committed: Tue Jan 10 19:46:28 2006 UTC (18 years, 6 months ago) by root
Branch: MAIN
Changes since 1.20: +54 -16 lines
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131     .IX Title "rxvt 3"
132 root 1.19 .TH rxvt 3 "2006-01-10" "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 root 1.20 .SH "PREPACKAGED EXTENSIONS"
166     .IX Header "PREPACKAGED EXTENSIONS"
167     This section describes the extensions delivered with this release. You can
168 root 1.6 find them in \fI@@RXVT_LIBDIR@@/urxvt/perl/\fR.
169     .PP
170     You can activate them like this:
171     .PP
172     .Vb 1
173     \& @@RXVT_NAME@@ -pe <extensionname>
174     .Ve
175 root 1.16 .IP "selection (enabled by default)" 4
176     .IX Item "selection (enabled by default)"
177 root 1.20 (More) intelligent selection. This extension tries to be more intelligent
178     when the user extends selections (double\-click). Right now, it tries to
179     select urls and complete shell-quoted arguments, which is very convenient,
180     too, if your \fIls\fR supports \f(CW\*(C`\-\-quoting\-style=shell\*(C'\fR.
181 root 1.9 .Sp
182 root 1.20 It also offers the following bindable keyboard command:
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 root 1.16 .IP "option-popup (enabled by default)" 4
195     .IX Item "option-popup (enabled by default)"
196 root 1.17 Binds a popup menu to Ctrl\-Button2 that lets you toggle (some) options at
197 root 1.16 runtime.
198 root 1.17 .IP "selection-popup (enabled by default)" 4
199     .IX Item "selection-popup (enabled by default)"
200     Binds a popup menu to Ctrl\-Button3 that lets you convert the selection
201 root 1.20 text into various other formats/action (such as uri unescaping, perl
202     evalution, web-browser starting etc.), depending on content.
203 root 1.19 .IP "searchable\-scrollback<hotkey> (enabled by default)" 4
204     .IX Item "searchable-scrollback<hotkey> (enabled by default)"
205     Adds regex search functionality to the scrollback buffer, triggered
206     by a hotkey (default: \f(CW\*(C`M\-s\*(C'\fR). When in search mode, normal terminal
207     input/output is suspended.
208     .Sp
209     \&\f(CW\*(C`/\*(C'\fR starts an incremental regex search, \f(CW\*(C`n\*(C'\fR searches further, \f(CW\*(C`p\*(C'\fR or
210     \&\f(CW\*(C`N\*(C'\fR jump to the previous match, \f(CW\*(C`G\*(C'\fR jumps to the bottom and clears the
211     history, \f(CW\*(C`enter\*(C'\fR leaves search mode at the current position and \f(CW\*(C`escape\*(C'\fR
212     returns to the original position.
213 root 1.6 .IP "digital-clock" 4
214     .IX Item "digital-clock"
215 root 1.8 Displays a digital clock using the built-in overlay.
216 root 1.14 .IP "mark-urls" 4
217     .IX Item "mark-urls"
218     Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls.
219     .IP "block-graphics-to-ascii" 4
220     .IX Item "block-graphics-to-ascii"
221     A not very useful example of filtering all text output to the terminal,
222     by replacing all line-drawing characters (U+2500 .. U+259F) by a
223     similar-looking ascii character.
224 root 1.8 .IP "example-refresh-hooks" 4
225     .IX Item "example-refresh-hooks"
226 root 1.6 Displays a very simple digital clock in the upper right corner of the
227     window. Illustrates overwriting the refresh callbacks to create your own
228     overlays or changes.
229 root 1.20 .SH "API DOCUMENTATION"
230     .IX Header "API DOCUMENTATION"
231 root 1.3 .Sh "General \s-1API\s0 Considerations"
232     .IX Subsection "General API Considerations"
233     All objects (such as terminals, time watchers etc.) are typical
234     reference-to-hash objects. The hash can be used to store anything you
235     like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
236 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
237 root 1.3 modified).
238     .PP
239     When objects are destroyed on the \*(C+ side, the perl object hashes are
240     emptied, so its best to store related objects such as time watchers and
241     the like inside the terminal object so they get destroyed as soon as the
242     terminal is destroyed.
243 root 1.14 .PP
244     Argument names also often indicate the type of a parameter. Here are some
245     hints on what they mean:
246     .IP "$text" 4
247     .IX Item "$text"
248     Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
249     always represents one screen cell. See row_t for a discussion of this format.
250     .IP "$string" 4
251     .IX Item "$string"
252     A perl text string, with an emphasis on \fItext\fR. It can store all unicode
253     characters and is to be distinguished with text encoded in a specific
254     encoding (often locale\-specific) and binary data.
255     .IP "$octets" 4
256     .IX Item "$octets"
257     Either binary data or \- more common \- a text string encoded in a
258     locale-specific way.
259 root 1.19 .Sh "Extension Objects"
260     .IX Subsection "Extension Objects"
261     Very perl extension is a perl class. A separate perl object is created
262     for each terminal and each extension and passed as the first parameter to
263     hooks. So extensions can use their \f(CW$self\fR object without having to think
264     about other extensions, with the exception of methods and members that
265     begin with an underscore character \f(CW\*(C`_\*(C'\fR: these are reserved for internal
266     use.
267     .PP
268     Although it isn't a \f(CW\*(C`urxvt::term\*(C'\fR object, you can call all methods of the
269     \&\f(CW\*(C`urxvt::term\*(C'\fR class on this object.
270     .PP
271     It has the following methods and data members:
272     .ie n .IP "$urxvt_term = $self\->{term}" 4
273     .el .IP "$urxvt_term = \f(CW$self\fR\->{term}" 4
274     .IX Item "$urxvt_term = $self->{term}"
275     Returns the \f(CW\*(C`urxvt::term\*(C'\fR object associated with this instance of the
276     extension. This member \fImust not\fR be changed in any way.
277     .ie n .IP "$self\->enable ($hook_name => $cb\fR, [$hook_name => \f(CW$cb..])" 4
278     .el .IP "$self\->enable ($hook_name => \f(CW$cb\fR, [$hook_name => \f(CW$cb\fR..])" 4
279     .IX Item "$self->enable ($hook_name => $cb, [$hook_name => $cb..])"
280     Dynamically enable the given hooks (named without the \f(CW\*(C`on_\*(C'\fR prefix) for
281     this extension, replacing any previous hook. This is useful when you want
282     to overwrite time-critical hooks only temporarily.
283     .ie n .IP "$self\->disable ($hook_name[, $hook_name..])" 4
284     .el .IP "$self\->disable ($hook_name[, \f(CW$hook_name\fR..])" 4
285     .IX Item "$self->disable ($hook_name[, $hook_name..])"
286     Dynamically disable the given hooks.
287 root 1.1 .Sh "Hooks"
288     .IX Subsection "Hooks"
289 root 1.14 The following subroutines can be declared in extension files, and will be
290 root 1.9 called whenever the relevant event happens.
291     .PP
292 root 1.19 The first argument passed to them is an extension oject as described in
293     the in the \f(CW\*(C`Extension Objects\*(C'\fR section.
294 root 1.1 .PP
295 root 1.19 \&\fBAll\fR of these hooks must return a boolean value. If it is true, then the
296     event counts as being \fIconsumed\fR, and the invocation of other hooks is
297     skipped, and the relevant action might not be carried out by the \*(C+ code.
298     .PP
299     \&\fIWhen in doubt, return a false value (preferably \f(CI\*(C`()\*(C'\fI).\fR
300 root 1.1 .ie n .IP "on_init $term" 4
301     .el .IP "on_init \f(CW$term\fR" 4
302     .IX Item "on_init $term"
303     Called after a new terminal object has been initialized, but before
304 root 1.14 windows are created or the command gets run. Most methods are unsafe to
305     call or deliver senseless data, as terminal size and other characteristics
306     have not yet been determined. You can safely query and change resources,
307     though.
308 root 1.1 .ie n .IP "on_reset $term" 4
309     .el .IP "on_reset \f(CW$term\fR" 4
310     .IX Item "on_reset $term"
311     Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
312     control sequences. Here is where you can react on changes to size-related
313     variables.
314     .ie n .IP "on_start $term" 4
315     .el .IP "on_start \f(CW$term\fR" 4
316     .IX Item "on_start $term"
317     Called at the very end of initialisation of a new terminal, just before
318     returning to the mainloop.
319     .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
320     .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
321     .IX Item "on_sel_make $term, $eventtime"
322     Called whenever a selection has been made by the user, but before the
323     selection text is copied, so changes to the beginning, end or type of the
324     selection will be honored.
325     .Sp
326     Returning a true value aborts selection making by urxvt, in which case you
327     have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
328     .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
329     .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
330     .IX Item "on_sel_grab $term, $eventtime"
331     Called whenever a selection has been copied, but before the selection is
332     requested from the server. The selection text can be queried and changed
333     by calling \f(CW\*(C`$term\->selection\*(C'\fR.
334     .Sp
335     Returning a true value aborts selection grabbing. It will still be hilighted.
336 root 1.9 .ie n .IP "on_sel_extend $term" 4
337     .el .IP "on_sel_extend \f(CW$term\fR" 4
338     .IX Item "on_sel_extend $term"
339     Called whenever the user tries to extend the selection (e.g. with a double
340     click) and is either supposed to return false (normal operation), or
341     should extend the selection itelf and return true to suppress the built-in
342     processing.
343     .Sp
344     See the \fIselection\fR example extension.
345 root 1.1 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
346     .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
347     .IX Item "on_view_change $term, $offset"
348     Called whenever the view offset changes, i..e the user or program
349     scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
350     show this many lines of scrollback.
351     .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
352     .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
353     .IX Item "on_scroll_back $term, $lines, $saved"
354     Called whenever lines scroll out of the terminal area into the scrollback
355     buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
356     than the scroll back buffer or the terminal.
357     .Sp
358     It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
359     \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
360     number of lines that will be in the scrollback buffer.
361 root 1.11 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
362     .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
363     .IX Item "on_osc_seq $term, $string"
364     Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
365     operating system command) is processed. Cursor position and other state
366     information is up-to-date when this happens. For interoperability, the
367     string should start with the extension name and a colon, to distinguish
368     it from commands for other extensions, and this might be enforced in the
369     future.
370     .Sp
371     Be careful not ever to trust (in a security sense) the data you receive,
372     as its source can not easily be controleld (e\-mail content, messages from
373     other users on the same system etc.).
374 root 1.14 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
375     .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
376     .IX Item "on_add_lines $term, $string"
377     Called whenever text is about to be output, with the text as argument. You
378     can filter/change and output the text yourself by returning a true value
379     and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
380     might be very slow, however, as your hook is called for \fBall\fR text being
381     output.
382 root 1.19 .ie n .IP "on_tt_write $term\fR, \f(CW$octets" 4
383     .el .IP "on_tt_write \f(CW$term\fR, \f(CW$octets\fR" 4
384     .IX Item "on_tt_write $term, $octets"
385     Called whenever some data is written to the tty/pty and can be used to
386     suppress or filter tty input.
387 root 1.14 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
388     .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
389     .IX Item "on_line_update $term, $row"
390     Called whenever a line was updated or changed. Can be used to filter
391     screen output (e.g. underline urls or other useless stuff). Only lines
392     that are being shown will be filtered, and, due to performance reasons,
393     not always immediately.
394     .Sp
395     The row number is always the topmost row of the line if the line spans
396     multiple rows.
397     .Sp
398     Please note that, if you change the line, then the hook might get called
399     later with the already-modified line (e.g. if unrelated parts change), so
400     you cannot just toggle rendition bits, but only set them.
401 root 1.1 .ie n .IP "on_refresh_begin $term" 4
402     .el .IP "on_refresh_begin \f(CW$term\fR" 4
403     .IX Item "on_refresh_begin $term"
404     Called just before the screen gets redrawn. Can be used for overlay
405     or similar effects by modify terminal contents in refresh_begin, and
406     restoring them in refresh_end. The built-in overlay and selection display
407     code is run after this hook, and takes precedence.
408     .ie n .IP "on_refresh_end $term" 4
409     .el .IP "on_refresh_end \f(CW$term\fR" 4
410     .IX Item "on_refresh_end $term"
411     Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
412 root 1.5 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
413     .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
414     .IX Item "on_keyboard_command $term, $string"
415     Called whenever the user presses a key combination that has a
416     \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
417     resource in the @@RXVT_NAME@@(1) manpage).
418 root 1.15 .ie n .IP "on_focus_in $term" 4
419     .el .IP "on_focus_in \f(CW$term\fR" 4
420     .IX Item "on_focus_in $term"
421     Called whenever the window gets the keyboard focus, before rxvt-unicode
422     does focus in processing.
423     .ie n .IP "on_focus_out $term" 4
424     .el .IP "on_focus_out \f(CW$term\fR" 4
425     .IX Item "on_focus_out $term"
426     Called wheneever the window loses keyboard focus, before rxvt-unicode does
427     focus out processing.
428 root 1.19 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets" 4
429     .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets\fR" 4
430     .IX Item "on_key_press $term, $event, $keysym, $octets"
431 root 1.14 .PD 0
432 root 1.19 .ie n .IP "on_key_release $term\fR, \f(CW$event\fR, \f(CW$keysym" 4
433     .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR" 4
434     .IX Item "on_key_release $term, $event, $keysym"
435 root 1.14 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
436     .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
437     .IX Item "on_button_press $term, $event"
438     .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
439     .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
440     .IX Item "on_button_release $term, $event"
441     .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
442     .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
443     .IX Item "on_motion_notify $term, $event"
444 root 1.15 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
445     .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
446     .IX Item "on_map_notify $term, $event"
447     .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
448     .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
449     .IX Item "on_unmap_notify $term, $event"
450 root 1.14 .PD
451     Called whenever the corresponding X event is received for the terminal If
452     the hook returns true, then the even will be ignored by rxvt\-unicode.
453     .Sp
454     The event is a hash with most values as named by Xlib (see the XEvent
455     manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
456     and column under the mouse cursor.
457     .Sp
458     \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
459     output, if any, in locale-specific encoding.
460     .Sp
461     subwindow.
462 root 1.9 .ie n .Sh "Variables in the ""urxvt"" Package"
463     .el .Sh "Variables in the \f(CWurxvt\fP Package"
464     .IX Subsection "Variables in the urxvt Package"
465 root 1.21 .IP "$urxvt::LIBDIR" 4
466     .IX Item "$urxvt::LIBDIR"
467     The rxvt-unicode library directory, where, among other things, the perl
468     modules and scripts are stored.
469     .ie n .IP "$urxvt::RESCLASS, $urxvt::RESCLASS" 4
470     .el .IP "$urxvt::RESCLASS, \f(CW$urxvt::RESCLASS\fR" 4
471     .IX Item "$urxvt::RESCLASS, $urxvt::RESCLASS"
472     The resource class and name rxvt-unicode uses to look up X resources.
473     .IP "$urxvt::RXVTNAME" 4
474     .IX Item "$urxvt::RXVTNAME"
475     The basename of the installed binaries, usually \f(CW\*(C`urxvt\*(C'\fR.
476 root 1.9 .IP "$urxvt::TERM" 4
477     .IX Item "$urxvt::TERM"
478 root 1.14 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
479     object, whenever a callback/hook is executing.
480 root 1.21 .IP "*" 4
481 root 1.1 .ie n .Sh "Functions in the ""urxvt"" Package"
482     .el .Sh "Functions in the \f(CWurxvt\fP Package"
483     .IX Subsection "Functions in the urxvt Package"
484 root 1.21 .PD 0
485 root 1.14 .IP "$term = new urxvt [arg...]" 4
486     .IX Item "$term = new urxvt [arg...]"
487 root 1.21 .PD
488 root 1.14 Creates a new terminal, very similar as if you had started it with
489     \&\f(CW\*(C`system $binfile, arg...\*(C'\fR. Croaks (and probably outputs an error message)
490     if the new instance couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new
491     instance didn't initialise perl, and the terminal object otherwise. The
492     \&\f(CW\*(C`init\*(C'\fR and \f(CW\*(C`start\*(C'\fR hooks will be called during the call.
493 root 1.1 .ie n .IP "urxvt::fatal $errormessage" 4
494     .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
495     .IX Item "urxvt::fatal $errormessage"
496     Fatally aborts execution with the given error message. Avoid at all
497     costs! The only time this is acceptable is when the terminal process
498     starts up.
499     .ie n .IP "urxvt::warn $string" 4
500     .el .IP "urxvt::warn \f(CW$string\fR" 4
501     .IX Item "urxvt::warn $string"
502 root 1.3 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
503 root 1.1 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
504     that calls this function.
505     .Sp
506     Using this function has the advantage that its output ends up in the
507     correct place, e.g. on stderr of the connecting urxvtc client.
508 root 1.18 .IP "$is_safe = urxvt::safe" 4
509     .IX Item "$is_safe = urxvt::safe"
510     Returns true when it is safe to do potentially unsafe things, such as
511     evaluating perl code specified by the user. This is true when urxvt was
512     started setuid or setgid.
513 root 1.1 .IP "$time = urxvt::NOW" 4
514     .IX Item "$time = urxvt::NOW"
515     Returns the \*(L"current time\*(R" (as per the event loop).
516 root 1.15 .IP "urxvt::CurrentTime" 4
517     .IX Item "urxvt::CurrentTime"
518     .PD 0
519     .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
520     .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
521     .PD
522 root 1.16 Various constants for use in X calls and event processing.
523 root 1.8 .Sh "\s-1RENDITION\s0"
524     .IX Subsection "RENDITION"
525     Rendition bitsets contain information about colour, font, font styles and
526     similar information for each screen cell.
527     .PP
528     The following \*(L"macros\*(R" deal with changes in rendition sets. You should
529     never just create a bitset, you should always modify an existing one,
530     as they contain important information required for correct operation of
531     rxvt\-unicode.
532     .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
533     .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
534     Returns the default rendition, as used when the terminal is starting up or
535     being reset. Useful as a base to start when creating renditions.
536     .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
537     .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
538     Return the rendition mask used for overlays by default.
539     .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
540     .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
541     Return the bit that enabled bold, italic, blink, reverse-video and
542     underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
543     the bitset.
544     .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
545     .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
546     .IX Item "$foreground = urxvt::GET_BASEFG $rend"
547     .PD 0
548     .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
549     .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
550     .IX Item "$background = urxvt::GET_BASEBG $rend"
551     .PD
552     Return the foreground/background colour index, respectively.
553 root 1.21 .ie n .IP "$rend = urxvt::SET_FGCOLOR $rend\fR, \f(CW$new_colour" 4
554     .el .IP "$rend = urxvt::SET_FGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
555     .IX Item "$rend = urxvt::SET_FGCOLOR $rend, $new_colour"
556 root 1.8 .PD 0
557 root 1.21 .ie n .IP "$rend = urxvt::SET_BGCOLOR $rend\fR, \f(CW$new_colour" 4
558     .el .IP "$rend = urxvt::SET_BGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
559     .IX Item "$rend = urxvt::SET_BGCOLOR $rend, $new_colour"
560 root 1.8 .PD
561     Replace the foreground/background colour in the rendition mask with the
562     specified one.
563 root 1.21 .ie n .IP "$value = urxvt::GET_CUSTOM $rend" 4
564     .el .IP "$value = urxvt::GET_CUSTOM \f(CW$rend\fR" 4
565     .IX Item "$value = urxvt::GET_CUSTOM $rend"
566 root 1.8 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
567     extensions. They can be set and changed as you like and are initially
568     zero.
569 root 1.21 .ie n .IP "$rend = urxvt::SET_CUSTOM $rend\fR, \f(CW$new_value" 4
570     .el .IP "$rend = urxvt::SET_CUSTOM \f(CW$rend\fR, \f(CW$new_value\fR" 4
571     .IX Item "$rend = urxvt::SET_CUSTOM $rend, $new_value"
572 root 1.8 Change the custom value.
573 root 1.16 .ie n .Sh "The ""urxvt::anyevent"" Class"
574     .el .Sh "The \f(CWurxvt::anyevent\fP Class"
575     .IX Subsection "The urxvt::anyevent Class"
576     The sole purpose of this class is to deliver an interface to the
577     \&\f(CW\*(C`AnyEvent\*(C'\fR module \- any module using it will work inside urxvt without
578 root 1.21 further programming. The only exception is that you cannot wait on
579     condition variables, but non-blocking condvar use is ok. What this means
580     is that you cannot use blocking APIs, but the non-blocking variant should
581     work.
582 root 1.1 .ie n .Sh "The ""urxvt::term"" Class"
583     .el .Sh "The \f(CWurxvt::term\fP Class"
584     .IX Subsection "The urxvt::term Class"
585 root 1.14 .IP "$term\->destroy" 4
586     .IX Item "$term->destroy"
587 root 1.21 Destroy the terminal object (close the window, free resources
588     etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
589     watchers (timers, io watchers) are still active.
590 root 1.15 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
591     .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
592     .IX Item "$isset = $term->option ($optval[, $set])"
593     Returns true if the option specified by \f(CW$optval\fR is enabled, and
594     optionally change it. All option values are stored by name in the hash
595     \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
596     .Sp
597     Here is a a likely non-exhaustive list of option names, please see the
598     source file \fI/src/optinc.h\fR to see the actual list:
599     .Sp
600     .Vb 6
601     \& borderLess console cursorBlink cursorUnderline hold iconic insecure
602     \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
603     \& pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
604     \& scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
605     \& secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
606     \& tripleclickwords utmpInhibit visualBell
607     .Ve
608 root 1.2 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
609     .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
610     .IX Item "$value = $term->resource ($name[, $newval])"
611     Returns the current resource value associated with a given name and
612     optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
613     hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
614     .Sp
615     The new value must be properly encoded to a suitable character encoding
616     before passing it to this method. Similarly, the returned value may need
617     to be converted from the used encoding to text.
618     .Sp
619     Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
620     as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
621     likely change).
622     .Sp
623     Please note that resource strings will currently only be freed when the
624     terminal is destroyed, so changing options frequently will eat memory.
625     .Sp
626     Here is a a likely non-exhaustive list of resource names, not all of which
627 root 1.15 are supported in every build, please see the source file \fI/src/rsinc.h\fR
628     to see the actual list:
629 root 1.2 .Sp
630     .Vb 12
631     \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
632     \& borderLess color cursorBlink cursorUnderline cutchars delete_key
633     \& display_name embed ext_bwidth fade font geometry hold iconName
634     \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
635 root 1.4 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
636 root 1.12 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
637 root 1.3 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
638     \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
639     \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
640     \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
641     \& shade term_name title transparent transparent_all tripleclickwords
642     \& utmpInhibit visualBell
643 root 1.2 .Ve
644 root 1.19 .ie n .IP "$success = $term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string)" 4
645     .el .IP "$success = \f(CW$term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string\fR)" 4
646     .IX Item "$success = $term->parse_keysym ($keysym_spec, $command_string)"
647     Adds a keymap translation exactly as specified via a resource. See the
648     \&\f(CW\*(C`keysym\*(C'\fR resource in the @@RXVT_NAME@@(1) manpage.
649 root 1.14 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
650     .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
651     .IX Item "$rend = $term->rstyle ([$new_rstyle])"
652     Return and optionally change the current rendition. Text that is output by
653     the terminal application will use this style.
654 root 1.13 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
655     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
656     .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
657     Return the current coordinates of the text cursor position and optionally
658     set it (which is usually bad as applications don't expect that).
659 root 1.1 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
660     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
661     .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
662     .PD 0
663     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
664     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
665     .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
666     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
667     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
668     .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
669     .PD
670     Return the current values of the selection mark, begin or end positions,
671     and optionally set them to new values.
672     .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
673     .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
674     .IX Item "$success = $term->selection_grab ($eventtime)"
675     Try to request the primary selection from the server (for example, as set
676     by the next method).
677     .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
678     .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
679     .IX Item "$oldtext = $term->selection ([$newtext])"
680     Return the current selection text and optionally replace it by \f(CW$newtext\fR.
681 root 1.19 .ie n .IP "$term\->overlay_simple ($x, $y\fR, \f(CW$text)" 4
682     .el .IP "$term\->overlay_simple ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
683     .IX Item "$term->overlay_simple ($x, $y, $text)"
684     Create a simple multi-line overlay box. See the next method for details.
685 root 1.8 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
686     .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
687     .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
688 root 1.1 Create a new (empty) overlay at the given position with the given
689 root 1.8 width/height. \f(CW$rstyle\fR defines the initial rendition style
690     (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
691     .Sp
692     If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
693     around the box.
694     .Sp
695     If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
696     right/bottom side, respectively.
697     .Sp
698     This method returns an urxvt::overlay object. The overlay will be visible
699     as long as the perl object is referenced.
700     .Sp
701 root 1.9 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
702     .RS 4
703 root 1.8 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
704     .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
705     .IX Item "$overlay->set ($x, $y, $text, $rend)"
706     Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
707     text in rxvt\-unicode's special encoding and an array of rendition values
708     at a specific position inside the overlay.
709 root 1.9 .IP "$overlay\->hide" 4
710     .IX Item "$overlay->hide"
711     If visible, hide the overlay, but do not destroy it.
712     .IP "$overlay\->show" 4
713     .IX Item "$overlay->show"
714     If hidden, display the overlay again.
715     .RE
716     .RS 4
717     .RE
718 root 1.15 .ie n .IP "$popup = $term\->popup ($event)" 4
719     .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
720     .IX Item "$popup = $term->popup ($event)"
721     Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
722     \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
723     currently).
724 root 1.14 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
725     .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
726     .IX Item "$cellwidth = $term->strwidth ($string)"
727 root 1.3 Returns the number of screen-cells this string would need. Correctly
728     accounts for wide and combining characters.
729 root 1.14 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
730     .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
731     .IX Item "$octets = $term->locale_encode ($string)"
732 root 1.3 Convert the given text string into the corresponding locale encoding.
733 root 1.14 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
734     .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
735     .IX Item "$string = $term->locale_decode ($octets)"
736 root 1.3 Convert the given locale-encoded octets into a perl string.
737 root 1.19 .ie n .IP "$term\->scr_xor_span ($beg_row, $beg_col\fR, \f(CW$end_row\fR, \f(CW$end_col\fR[, \f(CW$rstyle])" 4
738     .el .IP "$term\->scr_xor_span ($beg_row, \f(CW$beg_col\fR, \f(CW$end_row\fR, \f(CW$end_col\fR[, \f(CW$rstyle\fR])" 4
739     .IX Item "$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])"
740     XORs the rendition values in the given span with the provided value
741     (default: \f(CW\*(C`RS_RVid\*(C'\fR). Useful in refresh hooks to provide effects similar
742     to the selection.
743     .ie n .IP "$term\->scr_xor_rect ($beg_row, $beg_col\fR, \f(CW$end_row\fR, \f(CW$end_col\fR[, \f(CW$rstyle1\fR[, \f(CW$rstyle2]])" 4
744     .el .IP "$term\->scr_xor_rect ($beg_row, \f(CW$beg_col\fR, \f(CW$end_row\fR, \f(CW$end_col\fR[, \f(CW$rstyle1\fR[, \f(CW$rstyle2\fR]])" 4
745     .IX Item "$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])"
746     Similar to \f(CW\*(C`scr_xor_span\*(C'\fR, but xors a rectangle instead. Trailing
747     whitespace will additionally be xored with the \f(CW$rstyle2\fR, which defaults
748     to \f(CW\*(C`RS_RVid | RS_Uline\*(C'\fR, which removes reverse video again and underlines
749     it instead.
750     .IP "$term\->scr_bell" 4
751     .IX Item "$term->scr_bell"
752     Ring the bell!
753 root 1.14 .IP "$term\->scr_add_lines ($string)" 4
754     .IX Item "$term->scr_add_lines ($string)"
755     Write the given text string to the screen, as if output by the application
756     running inside the terminal. It may not contain command sequences (escape
757     codes), but is free to use line feeds, carriage returns and tabs. The
758     string is a normal text string, not in locale-dependent encoding.
759     .Sp
760     Normally its not a good idea to use this function, as programs might be
761     confused by changes in cursor position or scrolling. Its useful inside a
762     \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
763     .IP "$term\->cmd_parse ($octets)" 4
764     .IX Item "$term->cmd_parse ($octets)"
765     Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
766     locale-specific encoding of the terminal and can contain command sequences
767     (escape codes) that will be interpreted.
768 root 1.3 .IP "$term\->tt_write ($octets)" 4
769     .IX Item "$term->tt_write ($octets)"
770     Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
771 root 1.6 pass characters instead of octets, you should convert your strings first
772     to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
773 root 1.19 .ie n .IP "$old_events = $term\->pty_ev_events ([$new_events])" 4
774     .el .IP "$old_events = \f(CW$term\fR\->pty_ev_events ([$new_events])" 4
775     .IX Item "$old_events = $term->pty_ev_events ([$new_events])"
776     Replaces the event mask of the pty watcher by the given event mask. Can
777     be used to suppress input and output handling to the pty/tty. See the
778     description of \f(CW\*(C`urxvt::timer\->events\*(C'\fR. Make sure to always restore
779     the previous value.
780 root 1.14 .ie n .IP "$windowid = $term\->parent" 4
781     .el .IP "$windowid = \f(CW$term\fR\->parent" 4
782     .IX Item "$windowid = $term->parent"
783     Return the window id of the toplevel window.
784     .ie n .IP "$windowid = $term\->vt" 4
785     .el .IP "$windowid = \f(CW$term\fR\->vt" 4
786     .IX Item "$windowid = $term->vt"
787     Return the window id of the terminal window.
788 root 1.13 .ie n .IP "$window_width = $term\->width" 4
789     .el .IP "$window_width = \f(CW$term\fR\->width" 4
790     .IX Item "$window_width = $term->width"
791 root 1.6 .PD 0
792 root 1.13 .ie n .IP "$window_height = $term\->height" 4
793     .el .IP "$window_height = \f(CW$term\fR\->height" 4
794     .IX Item "$window_height = $term->height"
795     .ie n .IP "$font_width = $term\->fwidth" 4
796     .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
797     .IX Item "$font_width = $term->fwidth"
798     .ie n .IP "$font_height = $term\->fheight" 4
799     .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
800     .IX Item "$font_height = $term->fheight"
801     .ie n .IP "$font_ascent = $term\->fbase" 4
802     .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
803     .IX Item "$font_ascent = $term->fbase"
804     .ie n .IP "$terminal_rows = $term\->nrow" 4
805     .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
806     .IX Item "$terminal_rows = $term->nrow"
807     .ie n .IP "$terminal_columns = $term\->ncol" 4
808     .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
809     .IX Item "$terminal_columns = $term->ncol"
810     .ie n .IP "$has_focus = $term\->focus" 4
811     .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
812     .IX Item "$has_focus = $term->focus"
813     .ie n .IP "$is_mapped = $term\->mapped" 4
814     .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
815     .IX Item "$is_mapped = $term->mapped"
816     .ie n .IP "$max_scrollback = $term\->saveLines" 4
817     .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
818     .IX Item "$max_scrollback = $term->saveLines"
819     .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
820     .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
821     .IX Item "$nrow_plus_saveLines = $term->total_rows"
822     .ie n .IP "$lines_in_scrollback = $term\->nsaved" 4
823     .el .IP "$lines_in_scrollback = \f(CW$term\fR\->nsaved" 4
824     .IX Item "$lines_in_scrollback = $term->nsaved"
825 root 1.6 .PD
826 root 1.13 Return various integers describing terminal characteristics.
827 root 1.19 .ie n .IP "$lc_ctype = $term\->locale" 4
828     .el .IP "$lc_ctype = \f(CW$term\fR\->locale" 4
829     .IX Item "$lc_ctype = $term->locale"
830     Returns the \s-1LC_CTYPE\s0 category string used by this rxvt\-unicode.
831     .ie n .IP "$x_display = $term\->display_id" 4
832     .el .IP "$x_display = \f(CW$term\fR\->display_id" 4
833     .IX Item "$x_display = $term->display_id"
834     Return the \s-1DISPLAY\s0 used by rxvt\-unicode.
835 root 1.15 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
836     .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
837     .IX Item "$modifiermask = $term->ModLevel3Mask"
838     .PD 0
839     .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
840     .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
841     .IX Item "$modifiermask = $term->ModMetaMask"
842     .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
843     .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
844     .IX Item "$modifiermask = $term->ModNumLockMask"
845     .PD
846     Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
847     AltGr), the meta key (often Alt) and the num lock key, if applicable.
848 root 1.6 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
849     .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
850     .IX Item "$view_start = $term->view_start ([$newvalue])"
851     Returns the negative row number of the topmost line. Minimum value is
852     \&\f(CW0\fR, which displays the normal terminal contents. Larger values scroll
853     this many lines into the scrollback buffer.
854     .IP "$term\->want_refresh" 4
855     .IX Item "$term->want_refresh"
856     Requests a screen refresh. At the next opportunity, rxvt-unicode will
857     compare the on-screen display with its stored representation. If they
858     differ, it redraws the differences.
859     .Sp
860     Used after changing terminal contents to display them.
861     .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
862     .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
863     .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
864     Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
865     is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
866     terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
867 root 1.9 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
868     is requested.
869 root 1.6 .Sp
870     If \f(CW$new_text\fR is specified, it will replace characters in the current
871     line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
872 root 1.8 to replace only parts of a line. The font index in the rendition will
873 root 1.6 automatically be updated.
874     .Sp
875     \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
876     than one cell when displayed are padded with urxvt::NOCHAR characters
877     (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
878     that do not fit into the normal tetx encoding will be replaced with
879     characters in the private use area.
880     .Sp
881     You have to obey this encoding when changing text. The advantage is
882     that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
883     characters.
884     .Sp
885     The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
886     can be used to convert normal strings into this encoding and vice versa.
887     .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
888     .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
889     .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
890     Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
891     bitsets. Rendition bitsets contain information about colour, font, font
892     styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
893     .Sp
894     When setting rendition, the font mask will be ignored.
895     .Sp
896 root 1.8 See the section on \s-1RENDITION\s0, above.
897 root 1.6 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
898     .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
899     .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
900 root 1.9 Returns the number of screen cells that are in use (\*(L"the line
901     length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
902     line is joined with the following one.
903     .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
904     .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
905     .IX Item "$bool = $term->is_longer ($row_number)"
906     Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
907     joined with the following row), which means all characters are in use
908     and it is continued on the next row (and possibly a continuation of the
909     previous row(s)).
910     .ie n .IP "$line = $term\->line ($row_number)" 4
911     .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
912     .IX Item "$line = $term->line ($row_number)"
913     Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
914     about the logical line that row \f(CW$row_number\fR is part of. It supports the
915     following methods:
916     .RS 4
917 root 1.14 .ie n .IP "$text = $line\->t ([$new_text])" 4
918     .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
919     .IX Item "$text = $line->t ([$new_text])"
920     Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
921     .ie n .IP "$rend = $line\->r ([$new_rend])" 4
922     .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
923     .IX Item "$rend = $line->r ([$new_rend])"
924     Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
925 root 1.9 .ie n .IP "$length = $line\->l" 4
926     .el .IP "$length = \f(CW$line\fR\->l" 4
927     .IX Item "$length = $line->l"
928     Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
929     .ie n .IP "$rownum = $line\->beg" 4
930     .el .IP "$rownum = \f(CW$line\fR\->beg" 4
931     .IX Item "$rownum = $line->beg"
932     .PD 0
933     .ie n .IP "$rownum = $line\->end" 4
934     .el .IP "$rownum = \f(CW$line\fR\->end" 4
935     .IX Item "$rownum = $line->end"
936     .PD
937     Return the row number of the first/last row of the line, respectively.
938     .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
939     .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
940     .IX Item "$offset = $line->offset_of ($row, $col)"
941     Returns the character offset of the given row|col pair within the logical
942     line.
943     .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
944     .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
945     .IX Item "($row, $col) = $line->coord_of ($offset)"
946     Translates a string offset into terminal coordinates again.
947     .RE
948     .RS 4
949     .RE
950 root 1.17 .ie n .IP "$text = $term\fR\->special_encode \f(CW$string" 4
951     .el .IP "$text = \f(CW$term\fR\->special_encode \f(CW$string\fR" 4
952     .IX Item "$text = $term->special_encode $string"
953 root 1.6 Converts a perl string into the special encoding used by rxvt\-unicode,
954     where one character corresponds to one screen cell. See
955     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
956     .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
957     .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
958     .IX Item "$string = $term->special_decode $text"
959     Converts rxvt-unicodes text reprsentation into a perl string. See
960     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
961 root 1.17 .ie n .IP "$success = $term\fR\->grab_button ($button, \f(CW$modifiermask)" 4
962     .el .IP "$success = \f(CW$term\fR\->grab_button ($button, \f(CW$modifiermask\fR)" 4
963     .IX Item "$success = $term->grab_button ($button, $modifiermask)"
964 root 1.18 Registers a synchronous button grab. See the XGrabButton manpage.
965 root 1.17 .ie n .IP "$success = $term\fR\->grab ($eventtime[, \f(CW$sync])" 4
966     .el .IP "$success = \f(CW$term\fR\->grab ($eventtime[, \f(CW$sync\fR])" 4
967     .IX Item "$success = $term->grab ($eventtime[, $sync])"
968     Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
969     synchronous (\f(CW$sync\fR is true). Also remembers the grab timestampe.
970     .IP "$term\->allow_events_async" 4
971     .IX Item "$term->allow_events_async"
972     Calls XAllowEvents with AsyncBoth for the most recent grab.
973     .IP "$term\->allow_events_sync" 4
974     .IX Item "$term->allow_events_sync"
975     Calls XAllowEvents with SyncBoth for the most recent grab.
976     .IP "$term\->allow_events_replay" 4
977     .IX Item "$term->allow_events_replay"
978     Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
979     recent grab.
980     .IP "$term\->ungrab" 4
981     .IX Item "$term->ungrab"
982     Calls XUngrab for the most recent grab. Is called automatically on
983     evaluation errors, as it is better to lose the grab in the error case as
984     the session.
985 root 1.15 .ie n .Sh "The ""urxvt::popup"" Class"
986     .el .Sh "The \f(CWurxvt::popup\fP Class"
987     .IX Subsection "The urxvt::popup Class"
988 root 1.21 .IP "$popup\->add_title ($title)" 4
989     .IX Item "$popup->add_title ($title)"
990     Adds a non-clickable title to the popup.
991     .IP "$popup\->add_separator ([$sepchr])" 4
992     .IX Item "$popup->add_separator ([$sepchr])"
993     Creates a separator, optionally using the character given as \f(CW$sepchr\fR.
994     .ie n .IP "$popup\->add_button ($text, $cb)" 4
995     .el .IP "$popup\->add_button ($text, \f(CW$cb\fR)" 4
996     .IX Item "$popup->add_button ($text, $cb)"
997     Adds a clickable button to the popup. \f(CW$cb\fR is called whenever it is
998     selected.
999     .ie n .IP "$popup\->add_toggle ($text, $cb\fR, \f(CW$initial_value)" 4
1000     .el .IP "$popup\->add_toggle ($text, \f(CW$cb\fR, \f(CW$initial_value\fR)" 4
1001     .IX Item "$popup->add_toggle ($text, $cb, $initial_value)"
1002     Adds a toggle/checkbox item to the popup. Teh callback gets called
1003     whenever it gets toggled, with a boolean indicating its value as its first
1004     argument.
1005     .IP "$popup\->show" 4
1006     .IX Item "$popup->show"
1007     Displays the popup (which is initially hidden).
1008 root 1.1 .ie n .Sh "The ""urxvt::timer"" Class"
1009     .el .Sh "The \f(CWurxvt::timer\fP Class"
1010     .IX Subsection "The urxvt::timer Class"
1011     This class implements timer watchers/events. Time is represented as a
1012     fractional number of seconds since the epoch. Example:
1013 root 1.15 .Sp
1014 root 1.8 .Vb 8
1015     \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1016 root 1.1 \& $term->{timer} = urxvt::timer
1017     \& ->new
1018 root 1.8 \& ->interval (1)
1019 root 1.1 \& ->cb (sub {
1020 root 1.8 \& $term->{overlay}->set (0, 0,
1021     \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1022 root 1.1 \& });
1023     .Ve
1024 root 1.21 .RS 4
1025 root 1.1 .IP "$timer = new urxvt::timer" 4
1026     .IX Item "$timer = new urxvt::timer"
1027 root 1.8 Create a new timer object in started state. It is scheduled to fire
1028     immediately.
1029 root 1.1 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
1030     .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
1031     .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
1032     Set the callback to be called when the timer triggers.
1033     .ie n .IP "$tstamp = $timer\->at" 4
1034     .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
1035     .IX Item "$tstamp = $timer->at"
1036     Return the time this watcher will fire next.
1037     .ie n .IP "$timer = $timer\->set ($tstamp)" 4
1038     .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
1039     .IX Item "$timer = $timer->set ($tstamp)"
1040     Set the time the event is generated to \f(CW$tstamp\fR.
1041 root 1.8 .ie n .IP "$timer = $timer\->interval ($interval)" 4
1042     .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
1043     .IX Item "$timer = $timer->interval ($interval)"
1044     Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
1045     stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
1046     is automatically rescheduled at the given intervals.
1047 root 1.1 .ie n .IP "$timer = $timer\->start" 4
1048     .el .IP "$timer = \f(CW$timer\fR\->start" 4
1049     .IX Item "$timer = $timer->start"
1050     Start the timer.
1051     .ie n .IP "$timer = $timer\->start ($tstamp)" 4
1052     .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
1053     .IX Item "$timer = $timer->start ($tstamp)"
1054     Set the event trigger time to \f(CW$tstamp\fR and start the timer.
1055     .ie n .IP "$timer = $timer\->stop" 4
1056     .el .IP "$timer = \f(CW$timer\fR\->stop" 4
1057     .IX Item "$timer = $timer->stop"
1058     Stop the timer.
1059 root 1.15 .RE
1060     .RS 4
1061 root 1.1 .ie n .Sh "The ""urxvt::iow"" Class"
1062     .el .Sh "The \f(CWurxvt::iow\fP Class"
1063     .IX Subsection "The urxvt::iow Class"
1064     This class implements io watchers/events. Example:
1065 root 1.15 .Sp
1066 root 1.1 .Vb 12
1067     \& $term->{socket} = ...
1068     \& $term->{iow} = urxvt::iow
1069     \& ->new
1070     \& ->fd (fileno $term->{socket})
1071 root 1.19 \& ->events (urxvt::EVENT_READ)
1072 root 1.1 \& ->start
1073     \& ->cb (sub {
1074     \& my ($iow, $revents) = @_;
1075     \& # $revents must be 1 here, no need to check
1076     \& sysread $term->{socket}, my $buf, 8192
1077     \& or end-of-file;
1078     \& });
1079     .Ve
1080     .IP "$iow = new urxvt::iow" 4
1081     .IX Item "$iow = new urxvt::iow"
1082     Create a new io watcher object in stopped state.
1083     .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
1084     .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
1085     .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
1086     Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
1087     is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
1088     .ie n .IP "$iow = $iow\->fd ($fd)" 4
1089     .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
1090     .IX Item "$iow = $iow->fd ($fd)"
1091     Set the filedescriptor (not handle) to watch.
1092     .ie n .IP "$iow = $iow\->events ($eventmask)" 4
1093     .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
1094     .IX Item "$iow = $iow->events ($eventmask)"
1095 root 1.19 Set the event mask to watch. The only allowed values are
1096     \&\f(CW\*(C`urxvt::EVENT_READ\*(C'\fR and \f(CW\*(C`urxvt::EVENT_WRITE\*(C'\fR, which might be ORed
1097     together, or \f(CW\*(C`urxvt::EVENT_NONE\*(C'\fR.
1098 root 1.1 .ie n .IP "$iow = $iow\->start" 4
1099     .el .IP "$iow = \f(CW$iow\fR\->start" 4
1100     .IX Item "$iow = $iow->start"
1101     Start watching for requested events on the given handle.
1102     .ie n .IP "$iow = $iow\->stop" 4
1103     .el .IP "$iow = \f(CW$iow\fR\->stop" 4
1104     .IX Item "$iow = $iow->stop"
1105     Stop watching for events on the given filehandle.
1106 root 1.15 .RE
1107     .RS 4
1108 root 1.2 .SH "ENVIRONMENT"
1109     .IX Header "ENVIRONMENT"
1110     .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
1111     .IX Subsection "URXVT_PERL_VERBOSITY"
1112     This variable controls the verbosity level of the perl extension. Higher
1113     numbers indicate more verbose output.
1114 root 1.17 .IP "== 0 \- fatal messages" 4
1115     .IX Item "== 0 - fatal messages"
1116 root 1.2 .PD 0
1117 root 1.17 .IP ">= 3 \- script loading and management" 4
1118     .IX Item ">= 3 - script loading and management"
1119     .IP ">=10 \- all events received" 4
1120     .IX Item ">=10 - all events received"
1121 root 1.15 .RE
1122     .RS 4
1123 root 1.2 .PD
1124 root 1.1 .SH "AUTHOR"
1125     .IX Header "AUTHOR"
1126     .Vb 2
1127     \& Marc Lehmann <pcg@goof.com>
1128     \& http://software.schmorp.de/pkg/rxvt-unicode
1129     .Ve