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Revision: 1.27
Committed: Thu Jan 12 12:15:10 2006 UTC (18 years, 6 months ago) by root
Branch: MAIN
Changes since 1.26: +2 -0 lines
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131     .IX Title "rxvt 3"
132 root 1.25 .TH rxvt 3 "2006-01-12" "7.0" "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 root 1.25 when the user extends selections (double\-click and further clicks). Right
179     now, it tries to select words, urls and complete shell-quoted
180     arguments, which is very convenient, too, if your \fIls\fR supports
181     \&\f(CW\*(C`\-\-quoting\-style=shell\*(C'\fR.
182     .Sp
183     A double-click usually selects the word under the cursor, further clicks
184     will enlarge the selection.
185 root 1.9 .Sp
186 root 1.26 The selection works by trying to match a number of regexes and displaying
187     them in increasing order of length. You can add your own regexes by
188     specifying resources of the form:
189     .Sp
190     .Vb 3
191     \& URxvt.selection.pattern-0: perl-regex
192     \& URxvt.selection.pattern-1: perl-regex
193     \& ...
194     .Ve
195     .Sp
196     The index number (0, 1...) must not have any holes, and each regex must
197     contain at least one pair of capturing parentheses, which will be used for
198     the match. For example, the followign adds a regex that matches everything
199     between two vertical bars:
200     .Sp
201     .Vb 1
202     \& URxvt.selection.pattern-0: \e\e|([^|]+)\e\e|
203     .Ve
204     .Sp
205     You can look at the source of the selection extension to see more
206     interesting uses, such as parsing a line from beginning to end.
207     .Sp
208     This extension also offers the following bindable keyboard command:
209 root 1.6 .RS 4
210     .IP "rot13" 4
211     .IX Item "rot13"
212     Rot\-13 the selection when activated. Used via keyboard trigger:
213     .Sp
214     .Vb 1
215     \& URxvt.keysym.C-M-r: perl:selection:rot13
216     .Ve
217     .RE
218     .RS 4
219     .RE
220 root 1.16 .IP "option-popup (enabled by default)" 4
221     .IX Item "option-popup (enabled by default)"
222 root 1.17 Binds a popup menu to Ctrl\-Button2 that lets you toggle (some) options at
223 root 1.16 runtime.
224 root 1.17 .IP "selection-popup (enabled by default)" 4
225     .IX Item "selection-popup (enabled by default)"
226     Binds a popup menu to Ctrl\-Button3 that lets you convert the selection
227 root 1.20 text into various other formats/action (such as uri unescaping, perl
228     evalution, web-browser starting etc.), depending on content.
229 root 1.19 .IP "searchable\-scrollback<hotkey> (enabled by default)" 4
230     .IX Item "searchable-scrollback<hotkey> (enabled by default)"
231     Adds regex search functionality to the scrollback buffer, triggered
232 root 1.25 by a hotkey (default: \f(CW\*(C`M\-s\*(C'\fR). While in search mode, normal terminal
233     input/output is suspended and a regex is displayed at the bottom of the
234     screen.
235     .Sp
236     Inputting characters appends them to the regex and continues incremental
237     search. \f(CW\*(C`BackSpace\*(C'\fR removes a character from the regex, \f(CW\*(C`Up\*(C'\fR and \f(CW\*(C`Down\*(C'\fR
238     search upwards/downwards in the scrollback buffer, \f(CW\*(C`End\*(C'\fR jumps to the
239     bottom. \f(CW\*(C`Escape\*(C'\fR leaves search mode and returns to the point where search
240     was started, while \f(CW\*(C`Enter\*(C'\fR or \f(CW\*(C`Return\*(C'\fR stay at the current position and
241     additionally stores the first match in the current line into the primary
242     selection.
243 root 1.26 .IP "selection-autotransform" 4
244     .IX Item "selection-autotransform"
245     This selection allows you to do automatic transforms on a selection
246     whenever a selection is made.
247     .Sp
248     It works by specifying perl snippets (most useful is a single \f(CW\*(C`s///\*(C'\fR
249     operator) that modify \f(CW$_\fR as resources:
250     .Sp
251     .Vb 3
252     \& URxvt.selection-autotransform.0: transform
253     \& URxvt.selection-autotransform.1: transform
254     \& ...
255     .Ve
256     .Sp
257     For example, the following will transform selections of the form
258     \&\f(CW\*(C`filename:number\*(C'\fR, often seen in compiler messages, into \f(CW\*(C`vi +$filename
259     $word\*(C'\fR:
260     .Sp
261     .Vb 1
262     \& URxvt.selection-autotransform.0: s/^(\e\eS+):(\e\ed+):?$/vi +$2 \e\eQ$1\e\eE\e\ex0d/
263     .Ve
264     .Sp
265     And this example matches the same,but replaces it with vi-commands you can
266     paste directly into your (vi :) editor:
267     .Sp
268     .Vb 1
269     \& URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\e\ex1b:e \e\eQ$1\e\eE\e\ex0d:$2\e\ex0d/
270     .Ve
271 root 1.27 .Sp
272     Of course, this can be modified to suit your needs and your editor :)
273 root 1.14 .IP "mark-urls" 4
274     .IX Item "mark-urls"
275 root 1.24 Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls and
276 root 1.25 make them clickable. When middle\-clicked, the program specified in the
277     resource \f(CW\*(C`urlLauncher\*(C'\fR (default \f(CW\*(C`x\-www\-browser\*(C'\fR) will be started with
278     the \s-1URL\s0 as first argument.
279 root 1.14 .IP "block-graphics-to-ascii" 4
280     .IX Item "block-graphics-to-ascii"
281     A not very useful example of filtering all text output to the terminal,
282     by replacing all line-drawing characters (U+2500 .. U+259F) by a
283     similar-looking ascii character.
284 root 1.26 .IP "digital-clock" 4
285     .IX Item "digital-clock"
286     Displays a digital clock using the built-in overlay.
287 root 1.8 .IP "example-refresh-hooks" 4
288     .IX Item "example-refresh-hooks"
289 root 1.6 Displays a very simple digital clock in the upper right corner of the
290     window. Illustrates overwriting the refresh callbacks to create your own
291     overlays or changes.
292 root 1.20 .SH "API DOCUMENTATION"
293     .IX Header "API DOCUMENTATION"
294 root 1.3 .Sh "General \s-1API\s0 Considerations"
295     .IX Subsection "General API Considerations"
296     All objects (such as terminals, time watchers etc.) are typical
297     reference-to-hash objects. The hash can be used to store anything you
298     like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
299 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
300 root 1.3 modified).
301     .PP
302     When objects are destroyed on the \*(C+ side, the perl object hashes are
303     emptied, so its best to store related objects such as time watchers and
304     the like inside the terminal object so they get destroyed as soon as the
305     terminal is destroyed.
306 root 1.14 .PP
307     Argument names also often indicate the type of a parameter. Here are some
308     hints on what they mean:
309     .IP "$text" 4
310     .IX Item "$text"
311     Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
312 root 1.23 always represents one screen cell. See ROW_t for a discussion of this format.
313 root 1.14 .IP "$string" 4
314     .IX Item "$string"
315     A perl text string, with an emphasis on \fItext\fR. It can store all unicode
316     characters and is to be distinguished with text encoded in a specific
317     encoding (often locale\-specific) and binary data.
318     .IP "$octets" 4
319     .IX Item "$octets"
320     Either binary data or \- more common \- a text string encoded in a
321     locale-specific way.
322 root 1.19 .Sh "Extension Objects"
323     .IX Subsection "Extension Objects"
324     Very perl extension is a perl class. A separate perl object is created
325     for each terminal and each extension and passed as the first parameter to
326     hooks. So extensions can use their \f(CW$self\fR object without having to think
327     about other extensions, with the exception of methods and members that
328     begin with an underscore character \f(CW\*(C`_\*(C'\fR: these are reserved for internal
329     use.
330     .PP
331     Although it isn't a \f(CW\*(C`urxvt::term\*(C'\fR object, you can call all methods of the
332     \&\f(CW\*(C`urxvt::term\*(C'\fR class on this object.
333     .PP
334     It has the following methods and data members:
335     .ie n .IP "$urxvt_term = $self\->{term}" 4
336     .el .IP "$urxvt_term = \f(CW$self\fR\->{term}" 4
337     .IX Item "$urxvt_term = $self->{term}"
338     Returns the \f(CW\*(C`urxvt::term\*(C'\fR object associated with this instance of the
339     extension. This member \fImust not\fR be changed in any way.
340     .ie n .IP "$self\->enable ($hook_name => $cb\fR, [$hook_name => \f(CW$cb..])" 4
341     .el .IP "$self\->enable ($hook_name => \f(CW$cb\fR, [$hook_name => \f(CW$cb\fR..])" 4
342     .IX Item "$self->enable ($hook_name => $cb, [$hook_name => $cb..])"
343     Dynamically enable the given hooks (named without the \f(CW\*(C`on_\*(C'\fR prefix) for
344     this extension, replacing any previous hook. This is useful when you want
345     to overwrite time-critical hooks only temporarily.
346     .ie n .IP "$self\->disable ($hook_name[, $hook_name..])" 4
347     .el .IP "$self\->disable ($hook_name[, \f(CW$hook_name\fR..])" 4
348     .IX Item "$self->disable ($hook_name[, $hook_name..])"
349     Dynamically disable the given hooks.
350 root 1.1 .Sh "Hooks"
351     .IX Subsection "Hooks"
352 root 1.14 The following subroutines can be declared in extension files, and will be
353 root 1.9 called whenever the relevant event happens.
354     .PP
355 root 1.19 The first argument passed to them is an extension oject as described in
356     the in the \f(CW\*(C`Extension Objects\*(C'\fR section.
357 root 1.1 .PP
358 root 1.19 \&\fBAll\fR of these hooks must return a boolean value. If it is true, then the
359     event counts as being \fIconsumed\fR, and the invocation of other hooks is
360     skipped, and the relevant action might not be carried out by the \*(C+ code.
361     .PP
362     \&\fIWhen in doubt, return a false value (preferably \f(CI\*(C`()\*(C'\fI).\fR
363 root 1.1 .ie n .IP "on_init $term" 4
364     .el .IP "on_init \f(CW$term\fR" 4
365     .IX Item "on_init $term"
366     Called after a new terminal object has been initialized, but before
367 root 1.14 windows are created or the command gets run. Most methods are unsafe to
368     call or deliver senseless data, as terminal size and other characteristics
369     have not yet been determined. You can safely query and change resources,
370     though.
371 root 1.1 .ie n .IP "on_reset $term" 4
372     .el .IP "on_reset \f(CW$term\fR" 4
373     .IX Item "on_reset $term"
374     Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
375     control sequences. Here is where you can react on changes to size-related
376     variables.
377     .ie n .IP "on_start $term" 4
378     .el .IP "on_start \f(CW$term\fR" 4
379     .IX Item "on_start $term"
380     Called at the very end of initialisation of a new terminal, just before
381     returning to the mainloop.
382     .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
383     .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
384     .IX Item "on_sel_make $term, $eventtime"
385     Called whenever a selection has been made by the user, but before the
386     selection text is copied, so changes to the beginning, end or type of the
387     selection will be honored.
388     .Sp
389     Returning a true value aborts selection making by urxvt, in which case you
390     have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
391     .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
392     .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
393     .IX Item "on_sel_grab $term, $eventtime"
394     Called whenever a selection has been copied, but before the selection is
395     requested from the server. The selection text can be queried and changed
396     by calling \f(CW\*(C`$term\->selection\*(C'\fR.
397     .Sp
398     Returning a true value aborts selection grabbing. It will still be hilighted.
399 root 1.9 .ie n .IP "on_sel_extend $term" 4
400     .el .IP "on_sel_extend \f(CW$term\fR" 4
401     .IX Item "on_sel_extend $term"
402     Called whenever the user tries to extend the selection (e.g. with a double
403     click) and is either supposed to return false (normal operation), or
404     should extend the selection itelf and return true to suppress the built-in
405 root 1.25 processing. This can happen multiple times, as long as the callback
406     returns true, it will be called on every further click by the user and is
407     supposed to enlarge the selection more and more, if possible.
408 root 1.9 .Sp
409     See the \fIselection\fR example extension.
410 root 1.1 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
411     .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
412     .IX Item "on_view_change $term, $offset"
413     Called whenever the view offset changes, i..e the user or program
414     scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
415     show this many lines of scrollback.
416     .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
417     .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
418     .IX Item "on_scroll_back $term, $lines, $saved"
419     Called whenever lines scroll out of the terminal area into the scrollback
420     buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
421     than the scroll back buffer or the terminal.
422     .Sp
423     It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
424     \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
425     number of lines that will be in the scrollback buffer.
426 root 1.11 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
427     .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
428     .IX Item "on_osc_seq $term, $string"
429     Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
430     operating system command) is processed. Cursor position and other state
431     information is up-to-date when this happens. For interoperability, the
432     string should start with the extension name and a colon, to distinguish
433     it from commands for other extensions, and this might be enforced in the
434     future.
435     .Sp
436     Be careful not ever to trust (in a security sense) the data you receive,
437     as its source can not easily be controleld (e\-mail content, messages from
438     other users on the same system etc.).
439 root 1.14 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
440     .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
441     .IX Item "on_add_lines $term, $string"
442     Called whenever text is about to be output, with the text as argument. You
443     can filter/change and output the text yourself by returning a true value
444     and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
445     might be very slow, however, as your hook is called for \fBall\fR text being
446     output.
447 root 1.19 .ie n .IP "on_tt_write $term\fR, \f(CW$octets" 4
448     .el .IP "on_tt_write \f(CW$term\fR, \f(CW$octets\fR" 4
449     .IX Item "on_tt_write $term, $octets"
450     Called whenever some data is written to the tty/pty and can be used to
451     suppress or filter tty input.
452 root 1.14 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
453     .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
454     .IX Item "on_line_update $term, $row"
455     Called whenever a line was updated or changed. Can be used to filter
456     screen output (e.g. underline urls or other useless stuff). Only lines
457     that are being shown will be filtered, and, due to performance reasons,
458     not always immediately.
459     .Sp
460     The row number is always the topmost row of the line if the line spans
461     multiple rows.
462     .Sp
463     Please note that, if you change the line, then the hook might get called
464     later with the already-modified line (e.g. if unrelated parts change), so
465     you cannot just toggle rendition bits, but only set them.
466 root 1.1 .ie n .IP "on_refresh_begin $term" 4
467     .el .IP "on_refresh_begin \f(CW$term\fR" 4
468     .IX Item "on_refresh_begin $term"
469     Called just before the screen gets redrawn. Can be used for overlay
470     or similar effects by modify terminal contents in refresh_begin, and
471     restoring them in refresh_end. The built-in overlay and selection display
472     code is run after this hook, and takes precedence.
473     .ie n .IP "on_refresh_end $term" 4
474     .el .IP "on_refresh_end \f(CW$term\fR" 4
475     .IX Item "on_refresh_end $term"
476     Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
477 root 1.5 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
478     .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
479     .IX Item "on_keyboard_command $term, $string"
480     Called whenever the user presses a key combination that has a
481     \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
482     resource in the @@RXVT_NAME@@(1) manpage).
483 root 1.15 .ie n .IP "on_focus_in $term" 4
484     .el .IP "on_focus_in \f(CW$term\fR" 4
485     .IX Item "on_focus_in $term"
486     Called whenever the window gets the keyboard focus, before rxvt-unicode
487     does focus in processing.
488     .ie n .IP "on_focus_out $term" 4
489     .el .IP "on_focus_out \f(CW$term\fR" 4
490     .IX Item "on_focus_out $term"
491     Called wheneever the window loses keyboard focus, before rxvt-unicode does
492     focus out processing.
493 root 1.19 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets" 4
494     .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets\fR" 4
495     .IX Item "on_key_press $term, $event, $keysym, $octets"
496 root 1.14 .PD 0
497 root 1.19 .ie n .IP "on_key_release $term\fR, \f(CW$event\fR, \f(CW$keysym" 4
498     .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR" 4
499     .IX Item "on_key_release $term, $event, $keysym"
500 root 1.14 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
501     .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
502     .IX Item "on_button_press $term, $event"
503     .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
504     .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
505     .IX Item "on_button_release $term, $event"
506     .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
507     .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
508     .IX Item "on_motion_notify $term, $event"
509 root 1.15 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
510     .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
511     .IX Item "on_map_notify $term, $event"
512     .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
513     .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
514     .IX Item "on_unmap_notify $term, $event"
515 root 1.14 .PD
516     Called whenever the corresponding X event is received for the terminal If
517     the hook returns true, then the even will be ignored by rxvt\-unicode.
518     .Sp
519     The event is a hash with most values as named by Xlib (see the XEvent
520     manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
521     and column under the mouse cursor.
522     .Sp
523     \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
524     output, if any, in locale-specific encoding.
525     .Sp
526     subwindow.
527 root 1.9 .ie n .Sh "Variables in the ""urxvt"" Package"
528     .el .Sh "Variables in the \f(CWurxvt\fP Package"
529     .IX Subsection "Variables in the urxvt Package"
530 root 1.21 .IP "$urxvt::LIBDIR" 4
531     .IX Item "$urxvt::LIBDIR"
532     The rxvt-unicode library directory, where, among other things, the perl
533     modules and scripts are stored.
534     .ie n .IP "$urxvt::RESCLASS, $urxvt::RESCLASS" 4
535     .el .IP "$urxvt::RESCLASS, \f(CW$urxvt::RESCLASS\fR" 4
536     .IX Item "$urxvt::RESCLASS, $urxvt::RESCLASS"
537     The resource class and name rxvt-unicode uses to look up X resources.
538     .IP "$urxvt::RXVTNAME" 4
539     .IX Item "$urxvt::RXVTNAME"
540     The basename of the installed binaries, usually \f(CW\*(C`urxvt\*(C'\fR.
541 root 1.9 .IP "$urxvt::TERM" 4
542     .IX Item "$urxvt::TERM"
543 root 1.14 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
544     object, whenever a callback/hook is executing.
545 root 1.1 .ie n .Sh "Functions in the ""urxvt"" Package"
546     .el .Sh "Functions in the \f(CWurxvt\fP Package"
547     .IX Subsection "Functions in the urxvt Package"
548     .ie n .IP "urxvt::fatal $errormessage" 4
549     .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
550     .IX Item "urxvt::fatal $errormessage"
551     Fatally aborts execution with the given error message. Avoid at all
552     costs! The only time this is acceptable is when the terminal process
553     starts up.
554     .ie n .IP "urxvt::warn $string" 4
555     .el .IP "urxvt::warn \f(CW$string\fR" 4
556     .IX Item "urxvt::warn $string"
557 root 1.3 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
558 root 1.1 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
559     that calls this function.
560     .Sp
561     Using this function has the advantage that its output ends up in the
562     correct place, e.g. on stderr of the connecting urxvtc client.
563 root 1.22 .Sp
564     Messages have a size limit of 1023 bytes currently.
565 root 1.18 .IP "$is_safe = urxvt::safe" 4
566     .IX Item "$is_safe = urxvt::safe"
567     Returns true when it is safe to do potentially unsafe things, such as
568     evaluating perl code specified by the user. This is true when urxvt was
569     started setuid or setgid.
570 root 1.1 .IP "$time = urxvt::NOW" 4
571     .IX Item "$time = urxvt::NOW"
572     Returns the \*(L"current time\*(R" (as per the event loop).
573 root 1.15 .IP "urxvt::CurrentTime" 4
574     .IX Item "urxvt::CurrentTime"
575     .PD 0
576     .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
577     .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
578     .PD
579 root 1.16 Various constants for use in X calls and event processing.
580 root 1.8 .Sh "\s-1RENDITION\s0"
581     .IX Subsection "RENDITION"
582     Rendition bitsets contain information about colour, font, font styles and
583     similar information for each screen cell.
584     .PP
585     The following \*(L"macros\*(R" deal with changes in rendition sets. You should
586     never just create a bitset, you should always modify an existing one,
587     as they contain important information required for correct operation of
588     rxvt\-unicode.
589     .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
590     .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
591     Returns the default rendition, as used when the terminal is starting up or
592     being reset. Useful as a base to start when creating renditions.
593     .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
594     .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
595     Return the rendition mask used for overlays by default.
596     .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
597     .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
598     Return the bit that enabled bold, italic, blink, reverse-video and
599     underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
600     the bitset.
601     .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
602     .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
603     .IX Item "$foreground = urxvt::GET_BASEFG $rend"
604     .PD 0
605     .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
606     .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
607     .IX Item "$background = urxvt::GET_BASEBG $rend"
608     .PD
609     Return the foreground/background colour index, respectively.
610 root 1.21 .ie n .IP "$rend = urxvt::SET_FGCOLOR $rend\fR, \f(CW$new_colour" 4
611     .el .IP "$rend = urxvt::SET_FGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
612     .IX Item "$rend = urxvt::SET_FGCOLOR $rend, $new_colour"
613 root 1.8 .PD 0
614 root 1.21 .ie n .IP "$rend = urxvt::SET_BGCOLOR $rend\fR, \f(CW$new_colour" 4
615     .el .IP "$rend = urxvt::SET_BGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
616     .IX Item "$rend = urxvt::SET_BGCOLOR $rend, $new_colour"
617 root 1.8 .PD
618     Replace the foreground/background colour in the rendition mask with the
619     specified one.
620 root 1.21 .ie n .IP "$value = urxvt::GET_CUSTOM $rend" 4
621     .el .IP "$value = urxvt::GET_CUSTOM \f(CW$rend\fR" 4
622     .IX Item "$value = urxvt::GET_CUSTOM $rend"
623 root 1.8 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
624     extensions. They can be set and changed as you like and are initially
625     zero.
626 root 1.21 .ie n .IP "$rend = urxvt::SET_CUSTOM $rend\fR, \f(CW$new_value" 4
627     .el .IP "$rend = urxvt::SET_CUSTOM \f(CW$rend\fR, \f(CW$new_value\fR" 4
628     .IX Item "$rend = urxvt::SET_CUSTOM $rend, $new_value"
629 root 1.8 Change the custom value.
630 root 1.16 .ie n .Sh "The ""urxvt::anyevent"" Class"
631     .el .Sh "The \f(CWurxvt::anyevent\fP Class"
632     .IX Subsection "The urxvt::anyevent Class"
633     The sole purpose of this class is to deliver an interface to the
634     \&\f(CW\*(C`AnyEvent\*(C'\fR module \- any module using it will work inside urxvt without
635 root 1.21 further programming. The only exception is that you cannot wait on
636     condition variables, but non-blocking condvar use is ok. What this means
637     is that you cannot use blocking APIs, but the non-blocking variant should
638     work.
639 root 1.1 .ie n .Sh "The ""urxvt::term"" Class"
640     .el .Sh "The \f(CWurxvt::term\fP Class"
641     .IX Subsection "The urxvt::term Class"
642 root 1.22 .ie n .IP "$term = new urxvt::term $envhashref\fR, \f(CW$rxvtname, [arg...]" 4
643     .el .IP "$term = new urxvt::term \f(CW$envhashref\fR, \f(CW$rxvtname\fR, [arg...]" 4
644     .IX Item "$term = new urxvt::term $envhashref, $rxvtname, [arg...]"
645     Creates a new terminal, very similar as if you had started it with system
646 root 1.23 \&\f(CW\*(C`$rxvtname, arg...\*(C'\fR. \f(CW$envhashref\fR must be a reference to a \f(CW%ENV\fR\-like
647     hash which defines the environment of the new terminal.
648     .Sp
649     Croaks (and probably outputs an error message) if the new instance
650 root 1.22 couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new instance didn't
651     initialise perl, and the terminal object otherwise. The \f(CW\*(C`init\*(C'\fR and
652     \&\f(CW\*(C`start\*(C'\fR hooks will be called during this call.
653 root 1.14 .IP "$term\->destroy" 4
654     .IX Item "$term->destroy"
655 root 1.21 Destroy the terminal object (close the window, free resources
656     etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
657     watchers (timers, io watchers) are still active.
658 root 1.15 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
659     .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
660     .IX Item "$isset = $term->option ($optval[, $set])"
661     Returns true if the option specified by \f(CW$optval\fR is enabled, and
662     optionally change it. All option values are stored by name in the hash
663     \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
664     .Sp
665     Here is a a likely non-exhaustive list of option names, please see the
666     source file \fI/src/optinc.h\fR to see the actual list:
667     .Sp
668     .Vb 6
669     \& borderLess console cursorBlink cursorUnderline hold iconic insecure
670     \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
671     \& pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
672     \& scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
673     \& secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
674     \& tripleclickwords utmpInhibit visualBell
675     .Ve
676 root 1.2 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
677     .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
678     .IX Item "$value = $term->resource ($name[, $newval])"
679     Returns the current resource value associated with a given name and
680     optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
681     hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
682     .Sp
683     The new value must be properly encoded to a suitable character encoding
684     before passing it to this method. Similarly, the returned value may need
685     to be converted from the used encoding to text.
686     .Sp
687     Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
688     as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
689     likely change).
690     .Sp
691     Please note that resource strings will currently only be freed when the
692     terminal is destroyed, so changing options frequently will eat memory.
693     .Sp
694     Here is a a likely non-exhaustive list of resource names, not all of which
695 root 1.15 are supported in every build, please see the source file \fI/src/rsinc.h\fR
696     to see the actual list:
697 root 1.2 .Sp
698     .Vb 12
699     \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
700     \& borderLess color cursorBlink cursorUnderline cutchars delete_key
701     \& display_name embed ext_bwidth fade font geometry hold iconName
702     \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
703 root 1.4 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
704 root 1.12 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
705 root 1.3 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
706     \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
707     \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
708     \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
709     \& shade term_name title transparent transparent_all tripleclickwords
710     \& utmpInhibit visualBell
711 root 1.2 .Ve
712 root 1.24 .ie n .IP "$value = $term\->x_resource ($pattern)" 4
713     .el .IP "$value = \f(CW$term\fR\->x_resource ($pattern)" 4
714     .IX Item "$value = $term->x_resource ($pattern)"
715     Returns the X\-Resource for the given pattern, excluding the program or
716     class name, i.e. \f(CW\*(C`$term\->x_resource ("boldFont")\*(C'\fR should return the
717     same value as used by this instance of rxvt\-unicode. Returns \f(CW\*(C`undef\*(C'\fR if no
718     resource with that pattern exists.
719     .Sp
720     This method should only be called during the \f(CW\*(C`on_start\*(C'\fR hook, as there is
721     only one resource database per display, and later invocations might return
722     the wrong resources.
723 root 1.19 .ie n .IP "$success = $term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string)" 4
724     .el .IP "$success = \f(CW$term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string\fR)" 4
725     .IX Item "$success = $term->parse_keysym ($keysym_spec, $command_string)"
726     Adds a keymap translation exactly as specified via a resource. See the
727     \&\f(CW\*(C`keysym\*(C'\fR resource in the @@RXVT_NAME@@(1) manpage.
728 root 1.14 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
729     .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
730     .IX Item "$rend = $term->rstyle ([$new_rstyle])"
731     Return and optionally change the current rendition. Text that is output by
732     the terminal application will use this style.
733 root 1.13 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
734     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
735     .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
736     Return the current coordinates of the text cursor position and optionally
737     set it (which is usually bad as applications don't expect that).
738 root 1.1 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
739     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
740     .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
741     .PD 0
742     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
743     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
744     .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
745     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
746     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
747     .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
748     .PD
749     Return the current values of the selection mark, begin or end positions,
750     and optionally set them to new values.
751 root 1.25 .ie n .IP "$term\->selection_make ($eventtime[, $rectangular])" 4
752     .el .IP "$term\->selection_make ($eventtime[, \f(CW$rectangular\fR])" 4
753     .IX Item "$term->selection_make ($eventtime[, $rectangular])"
754     Tries to make a selection as set by \f(CW\*(C`selection_beg\*(C'\fR and
755     \&\f(CW\*(C`selection_end\*(C'\fR. If \f(CW$rectangular\fR is true (default: false), a
756     rectangular selection will be made. This is the prefered function to make
757     a selection.
758 root 1.1 .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
759     .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
760     .IX Item "$success = $term->selection_grab ($eventtime)"
761 root 1.25 Try to request the primary selection text from the server (for example, as
762     set by the next method). No visual feedback will be given. This function
763     is mostly useful from within \f(CW\*(C`on_sel_grab\*(C'\fR hooks.
764 root 1.1 .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
765     .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
766     .IX Item "$oldtext = $term->selection ([$newtext])"
767     Return the current selection text and optionally replace it by \f(CW$newtext\fR.
768 root 1.19 .ie n .IP "$term\->overlay_simple ($x, $y\fR, \f(CW$text)" 4
769     .el .IP "$term\->overlay_simple ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
770     .IX Item "$term->overlay_simple ($x, $y, $text)"
771     Create a simple multi-line overlay box. See the next method for details.
772 root 1.8 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
773     .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
774     .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
775 root 1.1 Create a new (empty) overlay at the given position with the given
776 root 1.8 width/height. \f(CW$rstyle\fR defines the initial rendition style
777     (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
778     .Sp
779     If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
780     around the box.
781     .Sp
782     If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
783     right/bottom side, respectively.
784     .Sp
785     This method returns an urxvt::overlay object. The overlay will be visible
786     as long as the perl object is referenced.
787     .Sp
788 root 1.9 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
789     .RS 4
790 root 1.8 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
791     .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
792     .IX Item "$overlay->set ($x, $y, $text, $rend)"
793     Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
794     text in rxvt\-unicode's special encoding and an array of rendition values
795     at a specific position inside the overlay.
796 root 1.9 .IP "$overlay\->hide" 4
797     .IX Item "$overlay->hide"
798     If visible, hide the overlay, but do not destroy it.
799     .IP "$overlay\->show" 4
800     .IX Item "$overlay->show"
801     If hidden, display the overlay again.
802     .RE
803     .RS 4
804     .RE
805 root 1.15 .ie n .IP "$popup = $term\->popup ($event)" 4
806     .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
807     .IX Item "$popup = $term->popup ($event)"
808     Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
809     \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
810     currently).
811 root 1.14 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
812     .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
813     .IX Item "$cellwidth = $term->strwidth ($string)"
814 root 1.3 Returns the number of screen-cells this string would need. Correctly
815     accounts for wide and combining characters.
816 root 1.14 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
817     .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
818     .IX Item "$octets = $term->locale_encode ($string)"
819 root 1.3 Convert the given text string into the corresponding locale encoding.
820 root 1.14 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
821     .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
822     .IX Item "$string = $term->locale_decode ($octets)"
823 root 1.3 Convert the given locale-encoded octets into a perl string.
824 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
825     .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
826     .IX Item "$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])"
827     XORs the rendition values in the given span with the provided value
828 root 1.25 (default: \f(CW\*(C`RS_RVid\*(C'\fR), which \fI\s-1MUST\s0 \s-1NOT\s0\fR contain font styles. Useful in
829     refresh hooks to provide effects similar to the selection.
830 root 1.19 .ie n .IP "$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$rstyle2]])" 4
831     .el .IP "$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
832     .IX Item "$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])"
833     Similar to \f(CW\*(C`scr_xor_span\*(C'\fR, but xors a rectangle instead. Trailing
834     whitespace will additionally be xored with the \f(CW$rstyle2\fR, which defaults
835     to \f(CW\*(C`RS_RVid | RS_Uline\*(C'\fR, which removes reverse video again and underlines
836 root 1.25 it instead. Both styles \fI\s-1MUST\s0 \s-1NOT\s0\fR contain font styles.
837 root 1.19 .IP "$term\->scr_bell" 4
838     .IX Item "$term->scr_bell"
839     Ring the bell!
840 root 1.14 .IP "$term\->scr_add_lines ($string)" 4
841     .IX Item "$term->scr_add_lines ($string)"
842     Write the given text string to the screen, as if output by the application
843     running inside the terminal. It may not contain command sequences (escape
844     codes), but is free to use line feeds, carriage returns and tabs. The
845     string is a normal text string, not in locale-dependent encoding.
846     .Sp
847     Normally its not a good idea to use this function, as programs might be
848     confused by changes in cursor position or scrolling. Its useful inside a
849     \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
850     .IP "$term\->cmd_parse ($octets)" 4
851     .IX Item "$term->cmd_parse ($octets)"
852     Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
853     locale-specific encoding of the terminal and can contain command sequences
854     (escape codes) that will be interpreted.
855 root 1.3 .IP "$term\->tt_write ($octets)" 4
856     .IX Item "$term->tt_write ($octets)"
857     Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
858 root 1.6 pass characters instead of octets, you should convert your strings first
859     to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
860 root 1.19 .ie n .IP "$old_events = $term\->pty_ev_events ([$new_events])" 4
861     .el .IP "$old_events = \f(CW$term\fR\->pty_ev_events ([$new_events])" 4
862     .IX Item "$old_events = $term->pty_ev_events ([$new_events])"
863     Replaces the event mask of the pty watcher by the given event mask. Can
864     be used to suppress input and output handling to the pty/tty. See the
865     description of \f(CW\*(C`urxvt::timer\->events\*(C'\fR. Make sure to always restore
866     the previous value.
867 root 1.14 .ie n .IP "$windowid = $term\->parent" 4
868     .el .IP "$windowid = \f(CW$term\fR\->parent" 4
869     .IX Item "$windowid = $term->parent"
870     Return the window id of the toplevel window.
871     .ie n .IP "$windowid = $term\->vt" 4
872     .el .IP "$windowid = \f(CW$term\fR\->vt" 4
873     .IX Item "$windowid = $term->vt"
874     Return the window id of the terminal window.
875 root 1.13 .ie n .IP "$window_width = $term\->width" 4
876     .el .IP "$window_width = \f(CW$term\fR\->width" 4
877     .IX Item "$window_width = $term->width"
878 root 1.6 .PD 0
879 root 1.13 .ie n .IP "$window_height = $term\->height" 4
880     .el .IP "$window_height = \f(CW$term\fR\->height" 4
881     .IX Item "$window_height = $term->height"
882     .ie n .IP "$font_width = $term\->fwidth" 4
883     .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
884     .IX Item "$font_width = $term->fwidth"
885     .ie n .IP "$font_height = $term\->fheight" 4
886     .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
887     .IX Item "$font_height = $term->fheight"
888     .ie n .IP "$font_ascent = $term\->fbase" 4
889     .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
890     .IX Item "$font_ascent = $term->fbase"
891     .ie n .IP "$terminal_rows = $term\->nrow" 4
892     .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
893     .IX Item "$terminal_rows = $term->nrow"
894     .ie n .IP "$terminal_columns = $term\->ncol" 4
895     .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
896     .IX Item "$terminal_columns = $term->ncol"
897     .ie n .IP "$has_focus = $term\->focus" 4
898     .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
899     .IX Item "$has_focus = $term->focus"
900     .ie n .IP "$is_mapped = $term\->mapped" 4
901     .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
902     .IX Item "$is_mapped = $term->mapped"
903     .ie n .IP "$max_scrollback = $term\->saveLines" 4
904     .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
905     .IX Item "$max_scrollback = $term->saveLines"
906     .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
907     .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
908     .IX Item "$nrow_plus_saveLines = $term->total_rows"
909     .ie n .IP "$lines_in_scrollback = $term\->nsaved" 4
910     .el .IP "$lines_in_scrollback = \f(CW$term\fR\->nsaved" 4
911     .IX Item "$lines_in_scrollback = $term->nsaved"
912 root 1.6 .PD
913 root 1.13 Return various integers describing terminal characteristics.
914 root 1.22 .ie n .IP "$x_display = $term\->display_id" 4
915     .el .IP "$x_display = \f(CW$term\fR\->display_id" 4
916     .IX Item "$x_display = $term->display_id"
917     Return the \s-1DISPLAY\s0 used by rxvt\-unicode.
918 root 1.19 .ie n .IP "$lc_ctype = $term\->locale" 4
919     .el .IP "$lc_ctype = \f(CW$term\fR\->locale" 4
920     .IX Item "$lc_ctype = $term->locale"
921     Returns the \s-1LC_CTYPE\s0 category string used by this rxvt\-unicode.
922 root 1.22 .ie n .IP "$env = $term\->env" 4
923     .el .IP "$env = \f(CW$term\fR\->env" 4
924     .IX Item "$env = $term->env"
925     Returns a copy of the environment in effect for the terminal as a hashref
926     similar to \f(CW\*(C`\e%ENV\*(C'\fR.
927 root 1.15 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
928     .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
929     .IX Item "$modifiermask = $term->ModLevel3Mask"
930     .PD 0
931     .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
932     .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
933     .IX Item "$modifiermask = $term->ModMetaMask"
934     .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
935     .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
936     .IX Item "$modifiermask = $term->ModNumLockMask"
937     .PD
938     Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
939     AltGr), the meta key (often Alt) and the num lock key, if applicable.
940 root 1.6 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
941     .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
942     .IX Item "$view_start = $term->view_start ([$newvalue])"
943     Returns the negative row number of the topmost line. Minimum value is
944     \&\f(CW0\fR, which displays the normal terminal contents. Larger values scroll
945     this many lines into the scrollback buffer.
946     .IP "$term\->want_refresh" 4
947     .IX Item "$term->want_refresh"
948     Requests a screen refresh. At the next opportunity, rxvt-unicode will
949     compare the on-screen display with its stored representation. If they
950     differ, it redraws the differences.
951     .Sp
952     Used after changing terminal contents to display them.
953     .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
954     .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
955     .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
956     Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
957     is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
958     terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
959 root 1.9 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
960     is requested.
961 root 1.6 .Sp
962     If \f(CW$new_text\fR is specified, it will replace characters in the current
963     line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
964 root 1.8 to replace only parts of a line. The font index in the rendition will
965 root 1.6 automatically be updated.
966     .Sp
967     \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
968     than one cell when displayed are padded with urxvt::NOCHAR characters
969     (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
970     that do not fit into the normal tetx encoding will be replaced with
971     characters in the private use area.
972     .Sp
973     You have to obey this encoding when changing text. The advantage is
974     that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
975     characters.
976     .Sp
977     The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
978     can be used to convert normal strings into this encoding and vice versa.
979     .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
980     .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
981     .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
982     Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
983     bitsets. Rendition bitsets contain information about colour, font, font
984     styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
985     .Sp
986     When setting rendition, the font mask will be ignored.
987     .Sp
988 root 1.8 See the section on \s-1RENDITION\s0, above.
989 root 1.6 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
990     .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
991     .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
992 root 1.9 Returns the number of screen cells that are in use (\*(L"the line
993     length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
994     line is joined with the following one.
995     .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
996     .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
997     .IX Item "$bool = $term->is_longer ($row_number)"
998     Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
999     joined with the following row), which means all characters are in use
1000     and it is continued on the next row (and possibly a continuation of the
1001     previous row(s)).
1002     .ie n .IP "$line = $term\->line ($row_number)" 4
1003     .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
1004     .IX Item "$line = $term->line ($row_number)"
1005     Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
1006     about the logical line that row \f(CW$row_number\fR is part of. It supports the
1007     following methods:
1008     .RS 4
1009 root 1.14 .ie n .IP "$text = $line\->t ([$new_text])" 4
1010     .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
1011     .IX Item "$text = $line->t ([$new_text])"
1012     Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
1013     .ie n .IP "$rend = $line\->r ([$new_rend])" 4
1014     .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
1015     .IX Item "$rend = $line->r ([$new_rend])"
1016     Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
1017 root 1.9 .ie n .IP "$length = $line\->l" 4
1018     .el .IP "$length = \f(CW$line\fR\->l" 4
1019     .IX Item "$length = $line->l"
1020     Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
1021     .ie n .IP "$rownum = $line\->beg" 4
1022     .el .IP "$rownum = \f(CW$line\fR\->beg" 4
1023     .IX Item "$rownum = $line->beg"
1024     .PD 0
1025     .ie n .IP "$rownum = $line\->end" 4
1026     .el .IP "$rownum = \f(CW$line\fR\->end" 4
1027     .IX Item "$rownum = $line->end"
1028     .PD
1029     Return the row number of the first/last row of the line, respectively.
1030     .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
1031     .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
1032     .IX Item "$offset = $line->offset_of ($row, $col)"
1033     Returns the character offset of the given row|col pair within the logical
1034 root 1.25 line. Works for rows outside the line, too, and returns corresponding
1035     offsets outside the string.
1036 root 1.9 .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
1037     .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
1038     .IX Item "($row, $col) = $line->coord_of ($offset)"
1039     Translates a string offset into terminal coordinates again.
1040     .RE
1041     .RS 4
1042     .RE
1043 root 1.17 .ie n .IP "$text = $term\fR\->special_encode \f(CW$string" 4
1044     .el .IP "$text = \f(CW$term\fR\->special_encode \f(CW$string\fR" 4
1045     .IX Item "$text = $term->special_encode $string"
1046 root 1.6 Converts a perl string into the special encoding used by rxvt\-unicode,
1047     where one character corresponds to one screen cell. See
1048     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
1049     .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
1050     .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
1051     .IX Item "$string = $term->special_decode $text"
1052     Converts rxvt-unicodes text reprsentation into a perl string. See
1053     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
1054 root 1.17 .ie n .IP "$success = $term\fR\->grab_button ($button, \f(CW$modifiermask)" 4
1055     .el .IP "$success = \f(CW$term\fR\->grab_button ($button, \f(CW$modifiermask\fR)" 4
1056     .IX Item "$success = $term->grab_button ($button, $modifiermask)"
1057 root 1.18 Registers a synchronous button grab. See the XGrabButton manpage.
1058 root 1.17 .ie n .IP "$success = $term\fR\->grab ($eventtime[, \f(CW$sync])" 4
1059     .el .IP "$success = \f(CW$term\fR\->grab ($eventtime[, \f(CW$sync\fR])" 4
1060     .IX Item "$success = $term->grab ($eventtime[, $sync])"
1061     Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1062     synchronous (\f(CW$sync\fR is true). Also remembers the grab timestampe.
1063     .IP "$term\->allow_events_async" 4
1064     .IX Item "$term->allow_events_async"
1065     Calls XAllowEvents with AsyncBoth for the most recent grab.
1066     .IP "$term\->allow_events_sync" 4
1067     .IX Item "$term->allow_events_sync"
1068     Calls XAllowEvents with SyncBoth for the most recent grab.
1069     .IP "$term\->allow_events_replay" 4
1070     .IX Item "$term->allow_events_replay"
1071     Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1072     recent grab.
1073     .IP "$term\->ungrab" 4
1074     .IX Item "$term->ungrab"
1075     Calls XUngrab for the most recent grab. Is called automatically on
1076     evaluation errors, as it is better to lose the grab in the error case as
1077     the session.
1078 root 1.15 .ie n .Sh "The ""urxvt::popup"" Class"
1079     .el .Sh "The \f(CWurxvt::popup\fP Class"
1080     .IX Subsection "The urxvt::popup Class"
1081 root 1.21 .IP "$popup\->add_title ($title)" 4
1082     .IX Item "$popup->add_title ($title)"
1083     Adds a non-clickable title to the popup.
1084     .IP "$popup\->add_separator ([$sepchr])" 4
1085     .IX Item "$popup->add_separator ([$sepchr])"
1086     Creates a separator, optionally using the character given as \f(CW$sepchr\fR.
1087     .ie n .IP "$popup\->add_button ($text, $cb)" 4
1088     .el .IP "$popup\->add_button ($text, \f(CW$cb\fR)" 4
1089     .IX Item "$popup->add_button ($text, $cb)"
1090     Adds a clickable button to the popup. \f(CW$cb\fR is called whenever it is
1091     selected.
1092     .ie n .IP "$popup\->add_toggle ($text, $cb\fR, \f(CW$initial_value)" 4
1093     .el .IP "$popup\->add_toggle ($text, \f(CW$cb\fR, \f(CW$initial_value\fR)" 4
1094     .IX Item "$popup->add_toggle ($text, $cb, $initial_value)"
1095     Adds a toggle/checkbox item to the popup. Teh callback gets called
1096     whenever it gets toggled, with a boolean indicating its value as its first
1097     argument.
1098     .IP "$popup\->show" 4
1099     .IX Item "$popup->show"
1100     Displays the popup (which is initially hidden).
1101 root 1.1 .ie n .Sh "The ""urxvt::timer"" Class"
1102     .el .Sh "The \f(CWurxvt::timer\fP Class"
1103     .IX Subsection "The urxvt::timer Class"
1104     This class implements timer watchers/events. Time is represented as a
1105     fractional number of seconds since the epoch. Example:
1106 root 1.23 .PP
1107 root 1.8 .Vb 8
1108     \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1109 root 1.1 \& $term->{timer} = urxvt::timer
1110     \& ->new
1111 root 1.8 \& ->interval (1)
1112 root 1.1 \& ->cb (sub {
1113 root 1.8 \& $term->{overlay}->set (0, 0,
1114     \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1115 root 1.1 \& });
1116     .Ve
1117     .IP "$timer = new urxvt::timer" 4
1118     .IX Item "$timer = new urxvt::timer"
1119 root 1.8 Create a new timer object in started state. It is scheduled to fire
1120     immediately.
1121 root 1.1 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
1122     .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
1123     .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
1124     Set the callback to be called when the timer triggers.
1125     .ie n .IP "$tstamp = $timer\->at" 4
1126     .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
1127     .IX Item "$tstamp = $timer->at"
1128     Return the time this watcher will fire next.
1129     .ie n .IP "$timer = $timer\->set ($tstamp)" 4
1130     .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
1131     .IX Item "$timer = $timer->set ($tstamp)"
1132     Set the time the event is generated to \f(CW$tstamp\fR.
1133 root 1.8 .ie n .IP "$timer = $timer\->interval ($interval)" 4
1134     .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
1135     .IX Item "$timer = $timer->interval ($interval)"
1136     Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
1137     stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
1138     is automatically rescheduled at the given intervals.
1139 root 1.1 .ie n .IP "$timer = $timer\->start" 4
1140     .el .IP "$timer = \f(CW$timer\fR\->start" 4
1141     .IX Item "$timer = $timer->start"
1142     Start the timer.
1143     .ie n .IP "$timer = $timer\->start ($tstamp)" 4
1144     .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
1145     .IX Item "$timer = $timer->start ($tstamp)"
1146     Set the event trigger time to \f(CW$tstamp\fR and start the timer.
1147     .ie n .IP "$timer = $timer\->stop" 4
1148     .el .IP "$timer = \f(CW$timer\fR\->stop" 4
1149     .IX Item "$timer = $timer->stop"
1150     Stop the timer.
1151     .ie n .Sh "The ""urxvt::iow"" Class"
1152     .el .Sh "The \f(CWurxvt::iow\fP Class"
1153     .IX Subsection "The urxvt::iow Class"
1154     This class implements io watchers/events. Example:
1155 root 1.23 .PP
1156 root 1.1 .Vb 12
1157     \& $term->{socket} = ...
1158     \& $term->{iow} = urxvt::iow
1159     \& ->new
1160     \& ->fd (fileno $term->{socket})
1161 root 1.19 \& ->events (urxvt::EVENT_READ)
1162 root 1.1 \& ->start
1163     \& ->cb (sub {
1164     \& my ($iow, $revents) = @_;
1165     \& # $revents must be 1 here, no need to check
1166     \& sysread $term->{socket}, my $buf, 8192
1167     \& or end-of-file;
1168     \& });
1169     .Ve
1170     .IP "$iow = new urxvt::iow" 4
1171     .IX Item "$iow = new urxvt::iow"
1172     Create a new io watcher object in stopped state.
1173     .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
1174     .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
1175     .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
1176     Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
1177     is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
1178     .ie n .IP "$iow = $iow\->fd ($fd)" 4
1179     .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
1180     .IX Item "$iow = $iow->fd ($fd)"
1181     Set the filedescriptor (not handle) to watch.
1182     .ie n .IP "$iow = $iow\->events ($eventmask)" 4
1183     .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
1184     .IX Item "$iow = $iow->events ($eventmask)"
1185 root 1.19 Set the event mask to watch. The only allowed values are
1186     \&\f(CW\*(C`urxvt::EVENT_READ\*(C'\fR and \f(CW\*(C`urxvt::EVENT_WRITE\*(C'\fR, which might be ORed
1187     together, or \f(CW\*(C`urxvt::EVENT_NONE\*(C'\fR.
1188 root 1.1 .ie n .IP "$iow = $iow\->start" 4
1189     .el .IP "$iow = \f(CW$iow\fR\->start" 4
1190     .IX Item "$iow = $iow->start"
1191     Start watching for requested events on the given handle.
1192     .ie n .IP "$iow = $iow\->stop" 4
1193     .el .IP "$iow = \f(CW$iow\fR\->stop" 4
1194     .IX Item "$iow = $iow->stop"
1195     Stop watching for events on the given filehandle.
1196 root 1.2 .SH "ENVIRONMENT"
1197     .IX Header "ENVIRONMENT"
1198     .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
1199     .IX Subsection "URXVT_PERL_VERBOSITY"
1200     This variable controls the verbosity level of the perl extension. Higher
1201     numbers indicate more verbose output.
1202 root 1.17 .IP "== 0 \- fatal messages" 4
1203     .IX Item "== 0 - fatal messages"
1204 root 1.2 .PD 0
1205 root 1.17 .IP ">= 3 \- script loading and management" 4
1206     .IX Item ">= 3 - script loading and management"
1207 root 1.25 .IP ">=10 \- all called hooks" 4
1208     .IX Item ">=10 - all called hooks"
1209     .IP ">=11 \- hook reutrn values" 4
1210     .IX Item ">=11 - hook reutrn values"
1211 root 1.2 .PD
1212 root 1.1 .SH "AUTHOR"
1213     .IX Header "AUTHOR"
1214     .Vb 2
1215     \& Marc Lehmann <pcg@goof.com>
1216     \& http://software.schmorp.de/pkg/rxvt-unicode
1217     .Ve