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Revision: 1.31
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# Content
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129 .\" ========================================================================
130 .\"
131 .IX Title "rxvt 3"
132 .TH rxvt 3 "2006-01-16" "7.0" "RXVT-UNICODE"
133 .SH "NAME"
134 @@RXVT_NAME@@perl \- rxvt\-unicode's embedded perl interpreter
135 .SH "SYNOPSIS"
136 .IX Header "SYNOPSIS"
137 .Vb 1
138 \& # create a file grab_test in $HOME:
139 .Ve
140 .PP
141 .Vb 4
142 \& sub on_sel_grab {
143 \& warn "you selected ", $_[0]->selection;
144 \& ()
145 \& }
146 .Ve
147 .PP
148 .Vb 1
149 \& # start a @@RXVT_NAME@@ using it:
150 .Ve
151 .PP
152 .Vb 1
153 \& @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
154 .Ve
155 .SH "DESCRIPTION"
156 .IX Header "DESCRIPTION"
157 Everytime a terminal object gets created, extension scripts specified via
158 the \f(CW\*(C`perl\*(C'\fR resource are loaded and associated with it.
159 .PP
160 Scripts are compiled in a 'use strict' and 'use utf8' environment, and
161 thus must be encoded as \s-1UTF\-8\s0.
162 .PP
163 Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
164 scripts will be shared (but not enabled) for all terminals.
165 .SH "PREPACKAGED EXTENSIONS"
166 .IX Header "PREPACKAGED EXTENSIONS"
167 This section describes the extensions delivered with this release. You can
168 find them in \fI@@RXVT_LIBDIR@@/urxvt/perl/\fR.
169 .PP
170 You can activate them like this:
171 .PP
172 .Vb 1
173 \& @@RXVT_NAME@@ -pe <extensionname>
174 .Ve
175 .IP "selection (enabled by default)" 4
176 .IX Item "selection (enabled by default)"
177 (More) intelligent selection. This extension tries to be more intelligent
178 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 .Sp
186 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 .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 .IP "option-popup (enabled by default)" 4
221 .IX Item "option-popup (enabled by default)"
222 Binds a popup menu to Ctrl\-Button2 that lets you toggle (some) options at
223 runtime.
224 .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 text into various other formats/action (such as uri unescaping, perl
228 evalution, web-browser starting etc.), depending on content.
229 .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 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 .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 $word\*(C'\fR:
260 .Sp
261 .Vb 1
262 \& URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\e\ed+):?$/vi +$2 \e\eQ$1\e\eE\e\ex0d/
263 .Ve
264 .Sp
265 And this example matches the same,but replaces it with vi-commands you can
266 paste directly into your (vi :) editor:
267 .Sp
268 .Vb 1
269 \& URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\e\ed+):?$/\e\ex1b:e \e\eQ$1\e\eE\e\ex0d:$2\e\ex0d/
270 .Ve
271 .Sp
272 Of course, this can be modified to suit your needs and your editor :)
273 .Sp
274 To expand the example above to typical perl error messages (\*(L"\s-1XXX\s0 at
275 \&\s-1FILENAME\s0 line \s-1YYY\s0.\*(R"), you need a slightly more elaborate solution:
276 .Sp
277 .Vb 2
278 \& URxvt.selection.pattern-0: ( at .*? line \e\ed+\e\e.)
279 \& URxvt.selection-autotransform.0: s/^ at (.*?) line (\e\ed+)\e\e.$/\ex1b:e \e\eQ$1\eE\e\ex0d:$2\e\ex0d/
280 .Ve
281 .Sp
282 The first line tells the selection code to treat the unchanging part of
283 every error message as a selection pattern, and the second line transforms
284 the message into vi commands to load the file.
285 .IP "mark-urls" 4
286 .IX Item "mark-urls"
287 Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls and
288 make them clickable. When middle\-clicked, the program specified in the
289 resource \f(CW\*(C`urlLauncher\*(C'\fR (default \f(CW\*(C`x\-www\-browser\*(C'\fR) will be started with
290 the \s-1URL\s0 as first argument.
291 .IP "block-graphics-to-ascii" 4
292 .IX Item "block-graphics-to-ascii"
293 A not very useful example of filtering all text output to the terminal,
294 by replacing all line-drawing characters (U+2500 .. U+259F) by a
295 similar-looking ascii character.
296 .IP "digital-clock" 4
297 .IX Item "digital-clock"
298 Displays a digital clock using the built-in overlay.
299 .IP "example-refresh-hooks" 4
300 .IX Item "example-refresh-hooks"
301 Displays a very simple digital clock in the upper right corner of the
302 window. Illustrates overwriting the refresh callbacks to create your own
303 overlays or changes.
304 .SH "API DOCUMENTATION"
305 .IX Header "API DOCUMENTATION"
306 .Sh "General \s-1API\s0 Considerations"
307 .IX Subsection "General API Considerations"
308 All objects (such as terminals, time watchers etc.) are typical
309 reference-to-hash objects. The hash can be used to store anything you
310 like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
311 \&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and \fB\s-1MUST\s0 \s-1NOT\s0\fR be accessed or
312 modified).
313 .PP
314 When objects are destroyed on the \*(C+ side, the perl object hashes are
315 emptied, so its best to store related objects such as time watchers and
316 the like inside the terminal object so they get destroyed as soon as the
317 terminal is destroyed.
318 .PP
319 Argument names also often indicate the type of a parameter. Here are some
320 hints on what they mean:
321 .IP "$text" 4
322 .IX Item "$text"
323 Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
324 always represents one screen cell. See ROW_t for a discussion of this format.
325 .IP "$string" 4
326 .IX Item "$string"
327 A perl text string, with an emphasis on \fItext\fR. It can store all unicode
328 characters and is to be distinguished with text encoded in a specific
329 encoding (often locale\-specific) and binary data.
330 .IP "$octets" 4
331 .IX Item "$octets"
332 Either binary data or \- more common \- a text string encoded in a
333 locale-specific way.
334 .Sh "Extension Objects"
335 .IX Subsection "Extension Objects"
336 Very perl extension is a perl class. A separate perl object is created
337 for each terminal and each extension and passed as the first parameter to
338 hooks. So extensions can use their \f(CW$self\fR object without having to think
339 about other extensions, with the exception of methods and members that
340 begin with an underscore character \f(CW\*(C`_\*(C'\fR: these are reserved for internal
341 use.
342 .PP
343 Although it isn't a \f(CW\*(C`urxvt::term\*(C'\fR object, you can call all methods of the
344 \&\f(CW\*(C`urxvt::term\*(C'\fR class on this object.
345 .PP
346 It has the following methods and data members:
347 .ie n .IP "$urxvt_term = $self\->{term}" 4
348 .el .IP "$urxvt_term = \f(CW$self\fR\->{term}" 4
349 .IX Item "$urxvt_term = $self->{term}"
350 Returns the \f(CW\*(C`urxvt::term\*(C'\fR object associated with this instance of the
351 extension. This member \fImust not\fR be changed in any way.
352 .ie n .IP "$self\->enable ($hook_name => $cb\fR, [$hook_name => \f(CW$cb..])" 4
353 .el .IP "$self\->enable ($hook_name => \f(CW$cb\fR, [$hook_name => \f(CW$cb\fR..])" 4
354 .IX Item "$self->enable ($hook_name => $cb, [$hook_name => $cb..])"
355 Dynamically enable the given hooks (named without the \f(CW\*(C`on_\*(C'\fR prefix) for
356 this extension, replacing any previous hook. This is useful when you want
357 to overwrite time-critical hooks only temporarily.
358 .ie n .IP "$self\->disable ($hook_name[, $hook_name..])" 4
359 .el .IP "$self\->disable ($hook_name[, \f(CW$hook_name\fR..])" 4
360 .IX Item "$self->disable ($hook_name[, $hook_name..])"
361 Dynamically disable the given hooks.
362 .Sh "Hooks"
363 .IX Subsection "Hooks"
364 The following subroutines can be declared in extension files, and will be
365 called whenever the relevant event happens.
366 .PP
367 The first argument passed to them is an extension oject as described in
368 the in the \f(CW\*(C`Extension Objects\*(C'\fR section.
369 .PP
370 \&\fBAll\fR of these hooks must return a boolean value. If it is true, then the
371 event counts as being \fIconsumed\fR, and the invocation of other hooks is
372 skipped, and the relevant action might not be carried out by the \*(C+ code.
373 .PP
374 \&\fIWhen in doubt, return a false value (preferably \f(CI\*(C`()\*(C'\fI).\fR
375 .ie n .IP "on_init $term" 4
376 .el .IP "on_init \f(CW$term\fR" 4
377 .IX Item "on_init $term"
378 Called after a new terminal object has been initialized, but before
379 windows are created or the command gets run. Most methods are unsafe to
380 call or deliver senseless data, as terminal size and other characteristics
381 have not yet been determined. You can safely query and change resources,
382 though.
383 .ie n .IP "on_reset $term" 4
384 .el .IP "on_reset \f(CW$term\fR" 4
385 .IX Item "on_reset $term"
386 Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
387 control sequences. Here is where you can react on changes to size-related
388 variables.
389 .ie n .IP "on_start $term" 4
390 .el .IP "on_start \f(CW$term\fR" 4
391 .IX Item "on_start $term"
392 Called at the very end of initialisation of a new terminal, just before
393 returning to the mainloop.
394 .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
395 .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
396 .IX Item "on_sel_make $term, $eventtime"
397 Called whenever a selection has been made by the user, but before the
398 selection text is copied, so changes to the beginning, end or type of the
399 selection will be honored.
400 .Sp
401 Returning a true value aborts selection making by urxvt, in which case you
402 have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
403 .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
404 .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
405 .IX Item "on_sel_grab $term, $eventtime"
406 Called whenever a selection has been copied, but before the selection is
407 requested from the server. The selection text can be queried and changed
408 by calling \f(CW\*(C`$term\->selection\*(C'\fR.
409 .Sp
410 Returning a true value aborts selection grabbing. It will still be hilighted.
411 .ie n .IP "on_sel_extend $term" 4
412 .el .IP "on_sel_extend \f(CW$term\fR" 4
413 .IX Item "on_sel_extend $term"
414 Called whenever the user tries to extend the selection (e.g. with a double
415 click) and is either supposed to return false (normal operation), or
416 should extend the selection itelf and return true to suppress the built-in
417 processing. This can happen multiple times, as long as the callback
418 returns true, it will be called on every further click by the user and is
419 supposed to enlarge the selection more and more, if possible.
420 .Sp
421 See the \fIselection\fR example extension.
422 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
423 .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
424 .IX Item "on_view_change $term, $offset"
425 Called whenever the view offset changes, i..e the user or program
426 scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
427 show this many lines of scrollback.
428 .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
429 .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
430 .IX Item "on_scroll_back $term, $lines, $saved"
431 Called whenever lines scroll out of the terminal area into the scrollback
432 buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
433 than the scroll back buffer or the terminal.
434 .Sp
435 It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
436 \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
437 number of lines that will be in the scrollback buffer.
438 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
439 .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
440 .IX Item "on_osc_seq $term, $string"
441 Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
442 operating system command) is processed. Cursor position and other state
443 information is up-to-date when this happens. For interoperability, the
444 string should start with the extension name and a colon, to distinguish
445 it from commands for other extensions, and this might be enforced in the
446 future.
447 .Sp
448 Be careful not ever to trust (in a security sense) the data you receive,
449 as its source can not easily be controleld (e\-mail content, messages from
450 other users on the same system etc.).
451 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
452 .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
453 .IX Item "on_add_lines $term, $string"
454 Called whenever text is about to be output, with the text as argument. You
455 can filter/change and output the text yourself by returning a true value
456 and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
457 might be very slow, however, as your hook is called for \fBall\fR text being
458 output.
459 .ie n .IP "on_tt_write $term\fR, \f(CW$octets" 4
460 .el .IP "on_tt_write \f(CW$term\fR, \f(CW$octets\fR" 4
461 .IX Item "on_tt_write $term, $octets"
462 Called whenever some data is written to the tty/pty and can be used to
463 suppress or filter tty input.
464 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
465 .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
466 .IX Item "on_line_update $term, $row"
467 Called whenever a line was updated or changed. Can be used to filter
468 screen output (e.g. underline urls or other useless stuff). Only lines
469 that are being shown will be filtered, and, due to performance reasons,
470 not always immediately.
471 .Sp
472 The row number is always the topmost row of the line if the line spans
473 multiple rows.
474 .Sp
475 Please note that, if you change the line, then the hook might get called
476 later with the already-modified line (e.g. if unrelated parts change), so
477 you cannot just toggle rendition bits, but only set them.
478 .ie n .IP "on_refresh_begin $term" 4
479 .el .IP "on_refresh_begin \f(CW$term\fR" 4
480 .IX Item "on_refresh_begin $term"
481 Called just before the screen gets redrawn. Can be used for overlay
482 or similar effects by modify terminal contents in refresh_begin, and
483 restoring them in refresh_end. The built-in overlay and selection display
484 code is run after this hook, and takes precedence.
485 .ie n .IP "on_refresh_end $term" 4
486 .el .IP "on_refresh_end \f(CW$term\fR" 4
487 .IX Item "on_refresh_end $term"
488 Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
489 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
490 .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
491 .IX Item "on_keyboard_command $term, $string"
492 Called whenever the user presses a key combination that has a
493 \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
494 resource in the @@RXVT_NAME@@(1) manpage).
495 .ie n .IP "on_x_event $term\fR, \f(CW$event" 4
496 .el .IP "on_x_event \f(CW$term\fR, \f(CW$event\fR" 4
497 .IX Item "on_x_event $term, $event"
498 Called on every X event received on the vt window (and possibly other
499 windows). Should only be used as a last resort. Most event structure
500 members are not passed.
501 .ie n .IP "on_focus_in $term" 4
502 .el .IP "on_focus_in \f(CW$term\fR" 4
503 .IX Item "on_focus_in $term"
504 Called whenever the window gets the keyboard focus, before rxvt-unicode
505 does focus in processing.
506 .ie n .IP "on_focus_out $term" 4
507 .el .IP "on_focus_out \f(CW$term\fR" 4
508 .IX Item "on_focus_out $term"
509 Called wheneever the window loses keyboard focus, before rxvt-unicode does
510 focus out processing.
511 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets" 4
512 .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets\fR" 4
513 .IX Item "on_key_press $term, $event, $keysym, $octets"
514 .PD 0
515 .ie n .IP "on_key_release $term\fR, \f(CW$event\fR, \f(CW$keysym" 4
516 .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR" 4
517 .IX Item "on_key_release $term, $event, $keysym"
518 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
519 .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
520 .IX Item "on_button_press $term, $event"
521 .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
522 .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
523 .IX Item "on_button_release $term, $event"
524 .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
525 .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
526 .IX Item "on_motion_notify $term, $event"
527 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
528 .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
529 .IX Item "on_map_notify $term, $event"
530 .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
531 .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
532 .IX Item "on_unmap_notify $term, $event"
533 .PD
534 Called whenever the corresponding X event is received for the terminal If
535 the hook returns true, then the even will be ignored by rxvt\-unicode.
536 .Sp
537 The event is a hash with most values as named by Xlib (see the XEvent
538 manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
539 and column under the mouse cursor.
540 .Sp
541 \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
542 output, if any, in locale-specific encoding.
543 .Sp
544 subwindow.
545 .ie n .Sh "Variables in the ""urxvt"" Package"
546 .el .Sh "Variables in the \f(CWurxvt\fP Package"
547 .IX Subsection "Variables in the urxvt Package"
548 .IP "$urxvt::LIBDIR" 4
549 .IX Item "$urxvt::LIBDIR"
550 The rxvt-unicode library directory, where, among other things, the perl
551 modules and scripts are stored.
552 .ie n .IP "$urxvt::RESCLASS, $urxvt::RESCLASS" 4
553 .el .IP "$urxvt::RESCLASS, \f(CW$urxvt::RESCLASS\fR" 4
554 .IX Item "$urxvt::RESCLASS, $urxvt::RESCLASS"
555 The resource class and name rxvt-unicode uses to look up X resources.
556 .IP "$urxvt::RXVTNAME" 4
557 .IX Item "$urxvt::RXVTNAME"
558 The basename of the installed binaries, usually \f(CW\*(C`urxvt\*(C'\fR.
559 .IP "$urxvt::TERM" 4
560 .IX Item "$urxvt::TERM"
561 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
562 object, whenever a callback/hook is executing.
563 .ie n .Sh "Functions in the ""urxvt"" Package"
564 .el .Sh "Functions in the \f(CWurxvt\fP Package"
565 .IX Subsection "Functions in the urxvt Package"
566 .ie n .IP "urxvt::fatal $errormessage" 4
567 .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
568 .IX Item "urxvt::fatal $errormessage"
569 Fatally aborts execution with the given error message. Avoid at all
570 costs! The only time this is acceptable is when the terminal process
571 starts up.
572 .ie n .IP "urxvt::warn $string" 4
573 .el .IP "urxvt::warn \f(CW$string\fR" 4
574 .IX Item "urxvt::warn $string"
575 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
576 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
577 that calls this function.
578 .Sp
579 Using this function has the advantage that its output ends up in the
580 correct place, e.g. on stderr of the connecting urxvtc client.
581 .Sp
582 Messages have a size limit of 1023 bytes currently.
583 .IP "$is_safe = urxvt::safe" 4
584 .IX Item "$is_safe = urxvt::safe"
585 Returns true when it is safe to do potentially unsafe things, such as
586 evaluating perl code specified by the user. This is true when urxvt was
587 started setuid or setgid.
588 .IP "$time = urxvt::NOW" 4
589 .IX Item "$time = urxvt::NOW"
590 Returns the \*(L"current time\*(R" (as per the event loop).
591 .IP "urxvt::CurrentTime" 4
592 .IX Item "urxvt::CurrentTime"
593 .PD 0
594 .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
595 .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
596 .IP "urxvt::NoEventMask, KeyPressMask, KeyReleaseMask, ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask, PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask, Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask, KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask, ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask, FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask" 4
597 .IX Item "urxvt::NoEventMask, KeyPressMask, KeyReleaseMask, ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask, PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask, Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask, KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask, ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask, FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask"
598 .IP "urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify, EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose, GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify, UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify, ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, SelectionNotify, ColormapNotify, ClientMessage, MappingNotify" 4
599 .IX Item "urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify, EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose, GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify, UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify, ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, SelectionNotify, ColormapNotify, ClientMessage, MappingNotify"
600 .PD
601 Various constants for use in X calls and event processing.
602 .Sh "\s-1RENDITION\s0"
603 .IX Subsection "RENDITION"
604 Rendition bitsets contain information about colour, font, font styles and
605 similar information for each screen cell.
606 .PP
607 The following \*(L"macros\*(R" deal with changes in rendition sets. You should
608 never just create a bitset, you should always modify an existing one,
609 as they contain important information required for correct operation of
610 rxvt\-unicode.
611 .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
612 .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
613 Returns the default rendition, as used when the terminal is starting up or
614 being reset. Useful as a base to start when creating renditions.
615 .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
616 .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
617 Return the rendition mask used for overlays by default.
618 .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
619 .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
620 Return the bit that enabled bold, italic, blink, reverse-video and
621 underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
622 the bitset.
623 .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
624 .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
625 .IX Item "$foreground = urxvt::GET_BASEFG $rend"
626 .PD 0
627 .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
628 .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
629 .IX Item "$background = urxvt::GET_BASEBG $rend"
630 .PD
631 Return the foreground/background colour index, respectively.
632 .ie n .IP "$rend = urxvt::SET_FGCOLOR $rend\fR, \f(CW$new_colour" 4
633 .el .IP "$rend = urxvt::SET_FGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
634 .IX Item "$rend = urxvt::SET_FGCOLOR $rend, $new_colour"
635 .PD 0
636 .ie n .IP "$rend = urxvt::SET_BGCOLOR $rend\fR, \f(CW$new_colour" 4
637 .el .IP "$rend = urxvt::SET_BGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
638 .IX Item "$rend = urxvt::SET_BGCOLOR $rend, $new_colour"
639 .PD
640 Replace the foreground/background colour in the rendition mask with the
641 specified one.
642 .ie n .IP "$value = urxvt::GET_CUSTOM $rend" 4
643 .el .IP "$value = urxvt::GET_CUSTOM \f(CW$rend\fR" 4
644 .IX Item "$value = urxvt::GET_CUSTOM $rend"
645 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
646 extensions. They can be set and changed as you like and are initially
647 zero.
648 .ie n .IP "$rend = urxvt::SET_CUSTOM $rend\fR, \f(CW$new_value" 4
649 .el .IP "$rend = urxvt::SET_CUSTOM \f(CW$rend\fR, \f(CW$new_value\fR" 4
650 .IX Item "$rend = urxvt::SET_CUSTOM $rend, $new_value"
651 Change the custom value.
652 .ie n .Sh "The ""urxvt::anyevent"" Class"
653 .el .Sh "The \f(CWurxvt::anyevent\fP Class"
654 .IX Subsection "The urxvt::anyevent Class"
655 The sole purpose of this class is to deliver an interface to the
656 \&\f(CW\*(C`AnyEvent\*(C'\fR module \- any module using it will work inside urxvt without
657 further programming. The only exception is that you cannot wait on
658 condition variables, but non-blocking condvar use is ok. What this means
659 is that you cannot use blocking APIs, but the non-blocking variant should
660 work.
661 .ie n .Sh "The ""urxvt::term"" Class"
662 .el .Sh "The \f(CWurxvt::term\fP Class"
663 .IX Subsection "The urxvt::term Class"
664 .ie n .IP "$term = new urxvt::term $envhashref\fR, \f(CW$rxvtname, [arg...]" 4
665 .el .IP "$term = new urxvt::term \f(CW$envhashref\fR, \f(CW$rxvtname\fR, [arg...]" 4
666 .IX Item "$term = new urxvt::term $envhashref, $rxvtname, [arg...]"
667 Creates a new terminal, very similar as if you had started it with system
668 \&\f(CW\*(C`$rxvtname, arg...\*(C'\fR. \f(CW$envhashref\fR must be a reference to a \f(CW%ENV\fR\-like
669 hash which defines the environment of the new terminal.
670 .Sp
671 Croaks (and probably outputs an error message) if the new instance
672 couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new instance didn't
673 initialise perl, and the terminal object otherwise. The \f(CW\*(C`init\*(C'\fR and
674 \&\f(CW\*(C`start\*(C'\fR hooks will be called during this call.
675 .IP "$term\->destroy" 4
676 .IX Item "$term->destroy"
677 Destroy the terminal object (close the window, free resources
678 etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
679 watchers (timers, io watchers) are still active.
680 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
681 .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
682 .IX Item "$isset = $term->option ($optval[, $set])"
683 Returns true if the option specified by \f(CW$optval\fR is enabled, and
684 optionally change it. All option values are stored by name in the hash
685 \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
686 .Sp
687 Here is a a likely non-exhaustive list of option names, please see the
688 source file \fI/src/optinc.h\fR to see the actual list:
689 .Sp
690 .Vb 6
691 \& borderLess console cursorBlink cursorUnderline hold iconic insecure
692 \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
693 \& pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
694 \& scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
695 \& secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
696 \& tripleclickwords utmpInhibit visualBell
697 .Ve
698 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
699 .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
700 .IX Item "$value = $term->resource ($name[, $newval])"
701 Returns the current resource value associated with a given name and
702 optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
703 hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
704 .Sp
705 The new value must be properly encoded to a suitable character encoding
706 before passing it to this method. Similarly, the returned value may need
707 to be converted from the used encoding to text.
708 .Sp
709 Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
710 as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
711 likely change).
712 .Sp
713 Please note that resource strings will currently only be freed when the
714 terminal is destroyed, so changing options frequently will eat memory.
715 .Sp
716 Here is a a likely non-exhaustive list of resource names, not all of which
717 are supported in every build, please see the source file \fI/src/rsinc.h\fR
718 to see the actual list:
719 .Sp
720 .Vb 12
721 \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
722 \& borderLess color cursorBlink cursorUnderline cutchars delete_key
723 \& display_name embed ext_bwidth fade font geometry hold iconName
724 \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
725 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
726 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
727 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
728 \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
729 \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
730 \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
731 \& shade term_name title transparent transparent_all tripleclickwords
732 \& utmpInhibit visualBell
733 .Ve
734 .ie n .IP "$value = $term\->x_resource ($pattern)" 4
735 .el .IP "$value = \f(CW$term\fR\->x_resource ($pattern)" 4
736 .IX Item "$value = $term->x_resource ($pattern)"
737 Returns the X\-Resource for the given pattern, excluding the program or
738 class name, i.e. \f(CW\*(C`$term\->x_resource ("boldFont")\*(C'\fR should return the
739 same value as used by this instance of rxvt\-unicode. Returns \f(CW\*(C`undef\*(C'\fR if no
740 resource with that pattern exists.
741 .Sp
742 This method should only be called during the \f(CW\*(C`on_start\*(C'\fR hook, as there is
743 only one resource database per display, and later invocations might return
744 the wrong resources.
745 .ie n .IP "$success = $term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string)" 4
746 .el .IP "$success = \f(CW$term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string\fR)" 4
747 .IX Item "$success = $term->parse_keysym ($keysym_spec, $command_string)"
748 Adds a keymap translation exactly as specified via a resource. See the
749 \&\f(CW\*(C`keysym\*(C'\fR resource in the @@RXVT_NAME@@(1) manpage.
750 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
751 .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
752 .IX Item "$rend = $term->rstyle ([$new_rstyle])"
753 Return and optionally change the current rendition. Text that is output by
754 the terminal application will use this style.
755 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
756 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
757 .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
758 Return the current coordinates of the text cursor position and optionally
759 set it (which is usually bad as applications don't expect that).
760 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
761 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
762 .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
763 .PD 0
764 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
765 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
766 .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
767 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
768 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
769 .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
770 .PD
771 Return the current values of the selection mark, begin or end positions,
772 and optionally set them to new values.
773 .ie n .IP "$term\->selection_make ($eventtime[, $rectangular])" 4
774 .el .IP "$term\->selection_make ($eventtime[, \f(CW$rectangular\fR])" 4
775 .IX Item "$term->selection_make ($eventtime[, $rectangular])"
776 Tries to make a selection as set by \f(CW\*(C`selection_beg\*(C'\fR and
777 \&\f(CW\*(C`selection_end\*(C'\fR. If \f(CW$rectangular\fR is true (default: false), a
778 rectangular selection will be made. This is the prefered function to make
779 a selection.
780 .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
781 .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
782 .IX Item "$success = $term->selection_grab ($eventtime)"
783 Try to request the primary selection text from the server (for example, as
784 set by the next method). No visual feedback will be given. This function
785 is mostly useful from within \f(CW\*(C`on_sel_grab\*(C'\fR hooks.
786 .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
787 .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
788 .IX Item "$oldtext = $term->selection ([$newtext])"
789 Return the current selection text and optionally replace it by \f(CW$newtext\fR.
790 .ie n .IP "$term\->overlay_simple ($x, $y\fR, \f(CW$text)" 4
791 .el .IP "$term\->overlay_simple ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
792 .IX Item "$term->overlay_simple ($x, $y, $text)"
793 Create a simple multi-line overlay box. See the next method for details.
794 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
795 .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
796 .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
797 Create a new (empty) overlay at the given position with the given
798 width/height. \f(CW$rstyle\fR defines the initial rendition style
799 (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
800 .Sp
801 If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
802 around the box.
803 .Sp
804 If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
805 right/bottom side, respectively.
806 .Sp
807 This method returns an urxvt::overlay object. The overlay will be visible
808 as long as the perl object is referenced.
809 .Sp
810 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
811 .RS 4
812 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
813 .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
814 .IX Item "$overlay->set ($x, $y, $text, $rend)"
815 Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
816 text in rxvt\-unicode's special encoding and an array of rendition values
817 at a specific position inside the overlay.
818 .IP "$overlay\->hide" 4
819 .IX Item "$overlay->hide"
820 If visible, hide the overlay, but do not destroy it.
821 .IP "$overlay\->show" 4
822 .IX Item "$overlay->show"
823 If hidden, display the overlay again.
824 .RE
825 .RS 4
826 .RE
827 .ie n .IP "$popup = $term\->popup ($event)" 4
828 .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
829 .IX Item "$popup = $term->popup ($event)"
830 Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
831 \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
832 currently).
833 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
834 .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
835 .IX Item "$cellwidth = $term->strwidth ($string)"
836 Returns the number of screen-cells this string would need. Correctly
837 accounts for wide and combining characters.
838 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
839 .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
840 .IX Item "$octets = $term->locale_encode ($string)"
841 Convert the given text string into the corresponding locale encoding.
842 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
843 .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
844 .IX Item "$string = $term->locale_decode ($octets)"
845 Convert the given locale-encoded octets into a perl string.
846 .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
847 .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
848 .IX Item "$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])"
849 XORs the rendition values in the given span with the provided value
850 (default: \f(CW\*(C`RS_RVid\*(C'\fR), which \fI\s-1MUST\s0 \s-1NOT\s0\fR contain font styles. Useful in
851 refresh hooks to provide effects similar to the selection.
852 .ie n .IP "$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$rstyle2]])" 4
853 .el .IP "$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
854 .IX Item "$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])"
855 Similar to \f(CW\*(C`scr_xor_span\*(C'\fR, but xors a rectangle instead. Trailing
856 whitespace will additionally be xored with the \f(CW$rstyle2\fR, which defaults
857 to \f(CW\*(C`RS_RVid | RS_Uline\*(C'\fR, which removes reverse video again and underlines
858 it instead. Both styles \fI\s-1MUST\s0 \s-1NOT\s0\fR contain font styles.
859 .IP "$term\->scr_bell" 4
860 .IX Item "$term->scr_bell"
861 Ring the bell!
862 .IP "$term\->scr_add_lines ($string)" 4
863 .IX Item "$term->scr_add_lines ($string)"
864 Write the given text string to the screen, as if output by the application
865 running inside the terminal. It may not contain command sequences (escape
866 codes), but is free to use line feeds, carriage returns and tabs. The
867 string is a normal text string, not in locale-dependent encoding.
868 .Sp
869 Normally its not a good idea to use this function, as programs might be
870 confused by changes in cursor position or scrolling. Its useful inside a
871 \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
872 .IP "$term\->cmd_parse ($octets)" 4
873 .IX Item "$term->cmd_parse ($octets)"
874 Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
875 locale-specific encoding of the terminal and can contain command sequences
876 (escape codes) that will be interpreted.
877 .IP "$term\->tt_write ($octets)" 4
878 .IX Item "$term->tt_write ($octets)"
879 Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
880 pass characters instead of octets, you should convert your strings first
881 to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
882 .ie n .IP "$old_events = $term\->pty_ev_events ([$new_events])" 4
883 .el .IP "$old_events = \f(CW$term\fR\->pty_ev_events ([$new_events])" 4
884 .IX Item "$old_events = $term->pty_ev_events ([$new_events])"
885 Replaces the event mask of the pty watcher by the given event mask. Can
886 be used to suppress input and output handling to the pty/tty. See the
887 description of \f(CW\*(C`urxvt::timer\->events\*(C'\fR. Make sure to always restore
888 the previous value.
889 .ie n .IP "$windowid = $term\->parent" 4
890 .el .IP "$windowid = \f(CW$term\fR\->parent" 4
891 .IX Item "$windowid = $term->parent"
892 Return the window id of the toplevel window.
893 .ie n .IP "$windowid = $term\->vt" 4
894 .el .IP "$windowid = \f(CW$term\fR\->vt" 4
895 .IX Item "$windowid = $term->vt"
896 Return the window id of the terminal window.
897 .IP "$term\->vt_emask_add ($x_event_mask)" 4
898 .IX Item "$term->vt_emask_add ($x_event_mask)"
899 Adds the specified events to the vt event mask. Useful e.g. when you want
900 to receive pointer events all the times:
901 .Sp
902 .Vb 1
903 \& $term->vt_emask_add (urxvt::PointerMotionMask);
904 .Ve
905 .ie n .IP "$window_width = $term\->width" 4
906 .el .IP "$window_width = \f(CW$term\fR\->width" 4
907 .IX Item "$window_width = $term->width"
908 .PD 0
909 .ie n .IP "$window_height = $term\->height" 4
910 .el .IP "$window_height = \f(CW$term\fR\->height" 4
911 .IX Item "$window_height = $term->height"
912 .ie n .IP "$font_width = $term\->fwidth" 4
913 .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
914 .IX Item "$font_width = $term->fwidth"
915 .ie n .IP "$font_height = $term\->fheight" 4
916 .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
917 .IX Item "$font_height = $term->fheight"
918 .ie n .IP "$font_ascent = $term\->fbase" 4
919 .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
920 .IX Item "$font_ascent = $term->fbase"
921 .ie n .IP "$terminal_rows = $term\->nrow" 4
922 .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
923 .IX Item "$terminal_rows = $term->nrow"
924 .ie n .IP "$terminal_columns = $term\->ncol" 4
925 .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
926 .IX Item "$terminal_columns = $term->ncol"
927 .ie n .IP "$has_focus = $term\->focus" 4
928 .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
929 .IX Item "$has_focus = $term->focus"
930 .ie n .IP "$is_mapped = $term\->mapped" 4
931 .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
932 .IX Item "$is_mapped = $term->mapped"
933 .ie n .IP "$max_scrollback = $term\->saveLines" 4
934 .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
935 .IX Item "$max_scrollback = $term->saveLines"
936 .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
937 .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
938 .IX Item "$nrow_plus_saveLines = $term->total_rows"
939 .ie n .IP "$topmost_scrollback_row = $term\->top_row" 4
940 .el .IP "$topmost_scrollback_row = \f(CW$term\fR\->top_row" 4
941 .IX Item "$topmost_scrollback_row = $term->top_row"
942 .PD
943 Return various integers describing terminal characteristics.
944 .ie n .IP "$x_display = $term\->display_id" 4
945 .el .IP "$x_display = \f(CW$term\fR\->display_id" 4
946 .IX Item "$x_display = $term->display_id"
947 Return the \s-1DISPLAY\s0 used by rxvt\-unicode.
948 .ie n .IP "$lc_ctype = $term\->locale" 4
949 .el .IP "$lc_ctype = \f(CW$term\fR\->locale" 4
950 .IX Item "$lc_ctype = $term->locale"
951 Returns the \s-1LC_CTYPE\s0 category string used by this rxvt\-unicode.
952 .ie n .IP "$env = $term\->env" 4
953 .el .IP "$env = \f(CW$term\fR\->env" 4
954 .IX Item "$env = $term->env"
955 Returns a copy of the environment in effect for the terminal as a hashref
956 similar to \f(CW\*(C`\e%ENV\*(C'\fR.
957 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
958 .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
959 .IX Item "$modifiermask = $term->ModLevel3Mask"
960 .PD 0
961 .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
962 .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
963 .IX Item "$modifiermask = $term->ModMetaMask"
964 .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
965 .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
966 .IX Item "$modifiermask = $term->ModNumLockMask"
967 .PD
968 Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
969 AltGr), the meta key (often Alt) and the num lock key, if applicable.
970 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
971 .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
972 .IX Item "$view_start = $term->view_start ([$newvalue])"
973 Returns the row number of the topmost displayed line. Maximum value is
974 \&\f(CW0\fR, which displays the normal terminal contents. Lower values scroll
975 this many lines into the scrollback buffer.
976 .IP "$term\->want_refresh" 4
977 .IX Item "$term->want_refresh"
978 Requests a screen refresh. At the next opportunity, rxvt-unicode will
979 compare the on-screen display with its stored representation. If they
980 differ, it redraws the differences.
981 .Sp
982 Used after changing terminal contents to display them.
983 .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
984 .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
985 .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
986 Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
987 is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
988 terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
989 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
990 is requested.
991 .Sp
992 If \f(CW$new_text\fR is specified, it will replace characters in the current
993 line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
994 to replace only parts of a line. The font index in the rendition will
995 automatically be updated.
996 .Sp
997 \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
998 than one cell when displayed are padded with urxvt::NOCHAR characters
999 (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
1000 that do not fit into the normal tetx encoding will be replaced with
1001 characters in the private use area.
1002 .Sp
1003 You have to obey this encoding when changing text. The advantage is
1004 that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
1005 characters.
1006 .Sp
1007 The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
1008 can be used to convert normal strings into this encoding and vice versa.
1009 .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
1010 .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
1011 .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
1012 Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
1013 bitsets. Rendition bitsets contain information about colour, font, font
1014 styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
1015 .Sp
1016 When setting rendition, the font mask will be ignored.
1017 .Sp
1018 See the section on \s-1RENDITION\s0, above.
1019 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
1020 .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
1021 .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
1022 Returns the number of screen cells that are in use (\*(L"the line
1023 length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
1024 line is joined with the following one.
1025 .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
1026 .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
1027 .IX Item "$bool = $term->is_longer ($row_number)"
1028 Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
1029 joined with the following row), which means all characters are in use
1030 and it is continued on the next row (and possibly a continuation of the
1031 previous row(s)).
1032 .ie n .IP "$line = $term\->line ($row_number)" 4
1033 .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
1034 .IX Item "$line = $term->line ($row_number)"
1035 Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
1036 about the logical line that row \f(CW$row_number\fR is part of. It supports the
1037 following methods:
1038 .RS 4
1039 .ie n .IP "$text = $line\->t ([$new_text])" 4
1040 .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
1041 .IX Item "$text = $line->t ([$new_text])"
1042 Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
1043 .ie n .IP "$rend = $line\->r ([$new_rend])" 4
1044 .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
1045 .IX Item "$rend = $line->r ([$new_rend])"
1046 Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
1047 .ie n .IP "$length = $line\->l" 4
1048 .el .IP "$length = \f(CW$line\fR\->l" 4
1049 .IX Item "$length = $line->l"
1050 Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
1051 .ie n .IP "$rownum = $line\->beg" 4
1052 .el .IP "$rownum = \f(CW$line\fR\->beg" 4
1053 .IX Item "$rownum = $line->beg"
1054 .PD 0
1055 .ie n .IP "$rownum = $line\->end" 4
1056 .el .IP "$rownum = \f(CW$line\fR\->end" 4
1057 .IX Item "$rownum = $line->end"
1058 .PD
1059 Return the row number of the first/last row of the line, respectively.
1060 .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
1061 .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
1062 .IX Item "$offset = $line->offset_of ($row, $col)"
1063 Returns the character offset of the given row|col pair within the logical
1064 line. Works for rows outside the line, too, and returns corresponding
1065 offsets outside the string.
1066 .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
1067 .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
1068 .IX Item "($row, $col) = $line->coord_of ($offset)"
1069 Translates a string offset into terminal coordinates again.
1070 .RE
1071 .RS 4
1072 .RE
1073 .ie n .IP "$text = $term\fR\->special_encode \f(CW$string" 4
1074 .el .IP "$text = \f(CW$term\fR\->special_encode \f(CW$string\fR" 4
1075 .IX Item "$text = $term->special_encode $string"
1076 Converts a perl string into the special encoding used by rxvt\-unicode,
1077 where one character corresponds to one screen cell. See
1078 \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
1079 .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
1080 .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
1081 .IX Item "$string = $term->special_decode $text"
1082 Converts rxvt-unicodes text reprsentation into a perl string. See
1083 \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
1084 .ie n .IP "$success = $term\fR\->grab_button ($button, \f(CW$modifiermask)" 4
1085 .el .IP "$success = \f(CW$term\fR\->grab_button ($button, \f(CW$modifiermask\fR)" 4
1086 .IX Item "$success = $term->grab_button ($button, $modifiermask)"
1087 Registers a synchronous button grab. See the XGrabButton manpage.
1088 .ie n .IP "$success = $term\fR\->grab ($eventtime[, \f(CW$sync])" 4
1089 .el .IP "$success = \f(CW$term\fR\->grab ($eventtime[, \f(CW$sync\fR])" 4
1090 .IX Item "$success = $term->grab ($eventtime[, $sync])"
1091 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1092 synchronous (\f(CW$sync\fR is true). Also remembers the grab timestampe.
1093 .IP "$term\->allow_events_async" 4
1094 .IX Item "$term->allow_events_async"
1095 Calls XAllowEvents with AsyncBoth for the most recent grab.
1096 .IP "$term\->allow_events_sync" 4
1097 .IX Item "$term->allow_events_sync"
1098 Calls XAllowEvents with SyncBoth for the most recent grab.
1099 .IP "$term\->allow_events_replay" 4
1100 .IX Item "$term->allow_events_replay"
1101 Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1102 recent grab.
1103 .IP "$term\->ungrab" 4
1104 .IX Item "$term->ungrab"
1105 Calls XUngrab for the most recent grab. Is called automatically on
1106 evaluation errors, as it is better to lose the grab in the error case as
1107 the session.
1108 .ie n .Sh "The ""urxvt::popup"" Class"
1109 .el .Sh "The \f(CWurxvt::popup\fP Class"
1110 .IX Subsection "The urxvt::popup Class"
1111 .IP "$popup\->add_title ($title)" 4
1112 .IX Item "$popup->add_title ($title)"
1113 Adds a non-clickable title to the popup.
1114 .IP "$popup\->add_separator ([$sepchr])" 4
1115 .IX Item "$popup->add_separator ([$sepchr])"
1116 Creates a separator, optionally using the character given as \f(CW$sepchr\fR.
1117 .ie n .IP "$popup\->add_button ($text, $cb)" 4
1118 .el .IP "$popup\->add_button ($text, \f(CW$cb\fR)" 4
1119 .IX Item "$popup->add_button ($text, $cb)"
1120 Adds a clickable button to the popup. \f(CW$cb\fR is called whenever it is
1121 selected.
1122 .ie n .IP "$popup\->add_toggle ($text, $cb\fR, \f(CW$initial_value)" 4
1123 .el .IP "$popup\->add_toggle ($text, \f(CW$cb\fR, \f(CW$initial_value\fR)" 4
1124 .IX Item "$popup->add_toggle ($text, $cb, $initial_value)"
1125 Adds a toggle/checkbox item to the popup. Teh callback gets called
1126 whenever it gets toggled, with a boolean indicating its value as its first
1127 argument.
1128 .IP "$popup\->show" 4
1129 .IX Item "$popup->show"
1130 Displays the popup (which is initially hidden).
1131 .ie n .Sh "The ""urxvt::timer"" Class"
1132 .el .Sh "The \f(CWurxvt::timer\fP Class"
1133 .IX Subsection "The urxvt::timer Class"
1134 This class implements timer watchers/events. Time is represented as a
1135 fractional number of seconds since the epoch. Example:
1136 .PP
1137 .Vb 8
1138 \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1139 \& $term->{timer} = urxvt::timer
1140 \& ->new
1141 \& ->interval (1)
1142 \& ->cb (sub {
1143 \& $term->{overlay}->set (0, 0,
1144 \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1145 \& });
1146 .Ve
1147 .IP "$timer = new urxvt::timer" 4
1148 .IX Item "$timer = new urxvt::timer"
1149 Create a new timer object in started state. It is scheduled to fire
1150 immediately.
1151 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
1152 .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
1153 .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
1154 Set the callback to be called when the timer triggers.
1155 .ie n .IP "$tstamp = $timer\->at" 4
1156 .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
1157 .IX Item "$tstamp = $timer->at"
1158 Return the time this watcher will fire next.
1159 .ie n .IP "$timer = $timer\->set ($tstamp)" 4
1160 .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
1161 .IX Item "$timer = $timer->set ($tstamp)"
1162 Set the time the event is generated to \f(CW$tstamp\fR.
1163 .ie n .IP "$timer = $timer\->interval ($interval)" 4
1164 .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
1165 .IX Item "$timer = $timer->interval ($interval)"
1166 Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
1167 stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
1168 is automatically rescheduled at the given intervals.
1169 .ie n .IP "$timer = $timer\->start" 4
1170 .el .IP "$timer = \f(CW$timer\fR\->start" 4
1171 .IX Item "$timer = $timer->start"
1172 Start the timer.
1173 .ie n .IP "$timer = $timer\->start ($tstamp)" 4
1174 .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
1175 .IX Item "$timer = $timer->start ($tstamp)"
1176 Set the event trigger time to \f(CW$tstamp\fR and start the timer.
1177 .ie n .IP "$timer = $timer\->stop" 4
1178 .el .IP "$timer = \f(CW$timer\fR\->stop" 4
1179 .IX Item "$timer = $timer->stop"
1180 Stop the timer.
1181 .ie n .Sh "The ""urxvt::iow"" Class"
1182 .el .Sh "The \f(CWurxvt::iow\fP Class"
1183 .IX Subsection "The urxvt::iow Class"
1184 This class implements io watchers/events. Example:
1185 .PP
1186 .Vb 12
1187 \& $term->{socket} = ...
1188 \& $term->{iow} = urxvt::iow
1189 \& ->new
1190 \& ->fd (fileno $term->{socket})
1191 \& ->events (urxvt::EVENT_READ)
1192 \& ->start
1193 \& ->cb (sub {
1194 \& my ($iow, $revents) = @_;
1195 \& # $revents must be 1 here, no need to check
1196 \& sysread $term->{socket}, my $buf, 8192
1197 \& or end-of-file;
1198 \& });
1199 .Ve
1200 .IP "$iow = new urxvt::iow" 4
1201 .IX Item "$iow = new urxvt::iow"
1202 Create a new io watcher object in stopped state.
1203 .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
1204 .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
1205 .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
1206 Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
1207 is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
1208 .ie n .IP "$iow = $iow\->fd ($fd)" 4
1209 .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
1210 .IX Item "$iow = $iow->fd ($fd)"
1211 Set the filedescriptor (not handle) to watch.
1212 .ie n .IP "$iow = $iow\->events ($eventmask)" 4
1213 .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
1214 .IX Item "$iow = $iow->events ($eventmask)"
1215 Set the event mask to watch. The only allowed values are
1216 \&\f(CW\*(C`urxvt::EVENT_READ\*(C'\fR and \f(CW\*(C`urxvt::EVENT_WRITE\*(C'\fR, which might be ORed
1217 together, or \f(CW\*(C`urxvt::EVENT_NONE\*(C'\fR.
1218 .ie n .IP "$iow = $iow\->start" 4
1219 .el .IP "$iow = \f(CW$iow\fR\->start" 4
1220 .IX Item "$iow = $iow->start"
1221 Start watching for requested events on the given handle.
1222 .ie n .IP "$iow = $iow\->stop" 4
1223 .el .IP "$iow = \f(CW$iow\fR\->stop" 4
1224 .IX Item "$iow = $iow->stop"
1225 Stop watching for events on the given filehandle.
1226 .SH "ENVIRONMENT"
1227 .IX Header "ENVIRONMENT"
1228 .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
1229 .IX Subsection "URXVT_PERL_VERBOSITY"
1230 This variable controls the verbosity level of the perl extension. Higher
1231 numbers indicate more verbose output.
1232 .IP "== 0 \- fatal messages" 4
1233 .IX Item "== 0 - fatal messages"
1234 .PD 0
1235 .IP ">= 3 \- script loading and management" 4
1236 .IX Item ">= 3 - script loading and management"
1237 .IP ">=10 \- all called hooks" 4
1238 .IX Item ">=10 - all called hooks"
1239 .IP ">=11 \- hook reutrn values" 4
1240 .IX Item ">=11 - hook reutrn values"
1241 .PD
1242 .SH "AUTHOR"
1243 .IX Header "AUTHOR"
1244 .Vb 2
1245 \& Marc Lehmann <pcg@goof.com>
1246 \& http://software.schmorp.de/pkg/rxvt-unicode
1247 .Ve