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Revision: 1.24
Committed: Wed Jan 11 02:13:56 2006 UTC (18 years, 6 months ago) by root
Branch: MAIN
Changes since 1.23: +14 -1 lines
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131     .IX Title "rxvt 3"
132 root 1.22 .TH rxvt 3 "2006-01-11" "6.3" "RXVT-UNICODE"
133 root 1.1 .SH "NAME"
134 root 1.5 @@RXVT_NAME@@perl \- rxvt\-unicode's embedded perl interpreter
135 root 1.1 .SH "SYNOPSIS"
136     .IX Header "SYNOPSIS"
137 root 1.5 .Vb 1
138     \& # create a file grab_test in $HOME:
139     .Ve
140 root 1.1 .PP
141     .Vb 4
142     \& sub on_sel_grab {
143     \& warn "you selected ", $_[0]->selection;
144     \& ()
145     \& }
146     .Ve
147     .PP
148     .Vb 1
149 root 1.5 \& # start a @@RXVT_NAME@@ using it:
150     .Ve
151     .PP
152     .Vb 1
153     \& @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
154 root 1.1 .Ve
155     .SH "DESCRIPTION"
156     .IX Header "DESCRIPTION"
157 root 1.15 Everytime a terminal object gets created, extension scripts specified via
158     the \f(CW\*(C`perl\*(C'\fR resource are loaded and associated with it.
159 root 1.5 .PP
160     Scripts are compiled in a 'use strict' and 'use utf8' environment, and
161     thus must be encoded as \s-1UTF\-8\s0.
162 root 1.3 .PP
163     Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
164 root 1.7 scripts will be shared (but not enabled) for all terminals.
165 root 1.20 .SH "PREPACKAGED EXTENSIONS"
166     .IX Header "PREPACKAGED EXTENSIONS"
167     This section describes the extensions delivered with this release. You can
168 root 1.6 find them in \fI@@RXVT_LIBDIR@@/urxvt/perl/\fR.
169     .PP
170     You can activate them like this:
171     .PP
172     .Vb 1
173     \& @@RXVT_NAME@@ -pe <extensionname>
174     .Ve
175 root 1.16 .IP "selection (enabled by default)" 4
176     .IX Item "selection (enabled by default)"
177 root 1.20 (More) intelligent selection. This extension tries to be more intelligent
178     when the user extends selections (double\-click). Right now, it tries to
179     select urls and complete shell-quoted arguments, which is very convenient,
180     too, if your \fIls\fR supports \f(CW\*(C`\-\-quoting\-style=shell\*(C'\fR.
181 root 1.9 .Sp
182 root 1.20 It also offers the following bindable keyboard command:
183 root 1.6 .RS 4
184     .IP "rot13" 4
185     .IX Item "rot13"
186     Rot\-13 the selection when activated. Used via keyboard trigger:
187     .Sp
188     .Vb 1
189     \& URxvt.keysym.C-M-r: perl:selection:rot13
190     .Ve
191     .RE
192     .RS 4
193     .RE
194 root 1.16 .IP "option-popup (enabled by default)" 4
195     .IX Item "option-popup (enabled by default)"
196 root 1.17 Binds a popup menu to Ctrl\-Button2 that lets you toggle (some) options at
197 root 1.16 runtime.
198 root 1.17 .IP "selection-popup (enabled by default)" 4
199     .IX Item "selection-popup (enabled by default)"
200     Binds a popup menu to Ctrl\-Button3 that lets you convert the selection
201 root 1.20 text into various other formats/action (such as uri unescaping, perl
202     evalution, web-browser starting etc.), depending on content.
203 root 1.19 .IP "searchable\-scrollback<hotkey> (enabled by default)" 4
204     .IX Item "searchable-scrollback<hotkey> (enabled by default)"
205     Adds regex search functionality to the scrollback buffer, triggered
206     by a hotkey (default: \f(CW\*(C`M\-s\*(C'\fR). When in search mode, normal terminal
207     input/output is suspended.
208     .Sp
209     \&\f(CW\*(C`/\*(C'\fR starts an incremental regex search, \f(CW\*(C`n\*(C'\fR searches further, \f(CW\*(C`p\*(C'\fR or
210     \&\f(CW\*(C`N\*(C'\fR jump to the previous match, \f(CW\*(C`G\*(C'\fR jumps to the bottom and clears the
211     history, \f(CW\*(C`enter\*(C'\fR leaves search mode at the current position and \f(CW\*(C`escape\*(C'\fR
212     returns to the original position.
213 root 1.6 .IP "digital-clock" 4
214     .IX Item "digital-clock"
215 root 1.8 Displays a digital clock using the built-in overlay.
216 root 1.14 .IP "mark-urls" 4
217     .IX Item "mark-urls"
218 root 1.24 Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls and
219     make them clickable. When clicked, the program specified in the resource
220     \&\f(CW\*(C`urlLauncher\*(C'\fR (default \f(CW\*(C`x\-www\-browser\*(C'\fR) will be started.
221 root 1.14 .IP "block-graphics-to-ascii" 4
222     .IX Item "block-graphics-to-ascii"
223     A not very useful example of filtering all text output to the terminal,
224     by replacing all line-drawing characters (U+2500 .. U+259F) by a
225     similar-looking ascii character.
226 root 1.8 .IP "example-refresh-hooks" 4
227     .IX Item "example-refresh-hooks"
228 root 1.6 Displays a very simple digital clock in the upper right corner of the
229     window. Illustrates overwriting the refresh callbacks to create your own
230     overlays or changes.
231 root 1.20 .SH "API DOCUMENTATION"
232     .IX Header "API DOCUMENTATION"
233 root 1.3 .Sh "General \s-1API\s0 Considerations"
234     .IX Subsection "General API Considerations"
235     All objects (such as terminals, time watchers etc.) are typical
236     reference-to-hash objects. The hash can be used to store anything you
237     like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
238 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
239 root 1.3 modified).
240     .PP
241     When objects are destroyed on the \*(C+ side, the perl object hashes are
242     emptied, so its best to store related objects such as time watchers and
243     the like inside the terminal object so they get destroyed as soon as the
244     terminal is destroyed.
245 root 1.14 .PP
246     Argument names also often indicate the type of a parameter. Here are some
247     hints on what they mean:
248     .IP "$text" 4
249     .IX Item "$text"
250     Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
251 root 1.23 always represents one screen cell. See ROW_t for a discussion of this format.
252 root 1.14 .IP "$string" 4
253     .IX Item "$string"
254     A perl text string, with an emphasis on \fItext\fR. It can store all unicode
255     characters and is to be distinguished with text encoded in a specific
256     encoding (often locale\-specific) and binary data.
257     .IP "$octets" 4
258     .IX Item "$octets"
259     Either binary data or \- more common \- a text string encoded in a
260     locale-specific way.
261 root 1.19 .Sh "Extension Objects"
262     .IX Subsection "Extension Objects"
263     Very perl extension is a perl class. A separate perl object is created
264     for each terminal and each extension and passed as the first parameter to
265     hooks. So extensions can use their \f(CW$self\fR object without having to think
266     about other extensions, with the exception of methods and members that
267     begin with an underscore character \f(CW\*(C`_\*(C'\fR: these are reserved for internal
268     use.
269     .PP
270     Although it isn't a \f(CW\*(C`urxvt::term\*(C'\fR object, you can call all methods of the
271     \&\f(CW\*(C`urxvt::term\*(C'\fR class on this object.
272     .PP
273     It has the following methods and data members:
274     .ie n .IP "$urxvt_term = $self\->{term}" 4
275     .el .IP "$urxvt_term = \f(CW$self\fR\->{term}" 4
276     .IX Item "$urxvt_term = $self->{term}"
277     Returns the \f(CW\*(C`urxvt::term\*(C'\fR object associated with this instance of the
278     extension. This member \fImust not\fR be changed in any way.
279     .ie n .IP "$self\->enable ($hook_name => $cb\fR, [$hook_name => \f(CW$cb..])" 4
280     .el .IP "$self\->enable ($hook_name => \f(CW$cb\fR, [$hook_name => \f(CW$cb\fR..])" 4
281     .IX Item "$self->enable ($hook_name => $cb, [$hook_name => $cb..])"
282     Dynamically enable the given hooks (named without the \f(CW\*(C`on_\*(C'\fR prefix) for
283     this extension, replacing any previous hook. This is useful when you want
284     to overwrite time-critical hooks only temporarily.
285     .ie n .IP "$self\->disable ($hook_name[, $hook_name..])" 4
286     .el .IP "$self\->disable ($hook_name[, \f(CW$hook_name\fR..])" 4
287     .IX Item "$self->disable ($hook_name[, $hook_name..])"
288     Dynamically disable the given hooks.
289 root 1.1 .Sh "Hooks"
290     .IX Subsection "Hooks"
291 root 1.14 The following subroutines can be declared in extension files, and will be
292 root 1.9 called whenever the relevant event happens.
293     .PP
294 root 1.19 The first argument passed to them is an extension oject as described in
295     the in the \f(CW\*(C`Extension Objects\*(C'\fR section.
296 root 1.1 .PP
297 root 1.19 \&\fBAll\fR of these hooks must return a boolean value. If it is true, then the
298     event counts as being \fIconsumed\fR, and the invocation of other hooks is
299     skipped, and the relevant action might not be carried out by the \*(C+ code.
300     .PP
301     \&\fIWhen in doubt, return a false value (preferably \f(CI\*(C`()\*(C'\fI).\fR
302 root 1.1 .ie n .IP "on_init $term" 4
303     .el .IP "on_init \f(CW$term\fR" 4
304     .IX Item "on_init $term"
305     Called after a new terminal object has been initialized, but before
306 root 1.14 windows are created or the command gets run. Most methods are unsafe to
307     call or deliver senseless data, as terminal size and other characteristics
308     have not yet been determined. You can safely query and change resources,
309     though.
310 root 1.1 .ie n .IP "on_reset $term" 4
311     .el .IP "on_reset \f(CW$term\fR" 4
312     .IX Item "on_reset $term"
313     Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
314     control sequences. Here is where you can react on changes to size-related
315     variables.
316     .ie n .IP "on_start $term" 4
317     .el .IP "on_start \f(CW$term\fR" 4
318     .IX Item "on_start $term"
319     Called at the very end of initialisation of a new terminal, just before
320     returning to the mainloop.
321     .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
322     .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
323     .IX Item "on_sel_make $term, $eventtime"
324     Called whenever a selection has been made by the user, but before the
325     selection text is copied, so changes to the beginning, end or type of the
326     selection will be honored.
327     .Sp
328     Returning a true value aborts selection making by urxvt, in which case you
329     have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
330     .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
331     .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
332     .IX Item "on_sel_grab $term, $eventtime"
333     Called whenever a selection has been copied, but before the selection is
334     requested from the server. The selection text can be queried and changed
335     by calling \f(CW\*(C`$term\->selection\*(C'\fR.
336     .Sp
337     Returning a true value aborts selection grabbing. It will still be hilighted.
338 root 1.9 .ie n .IP "on_sel_extend $term" 4
339     .el .IP "on_sel_extend \f(CW$term\fR" 4
340     .IX Item "on_sel_extend $term"
341     Called whenever the user tries to extend the selection (e.g. with a double
342     click) and is either supposed to return false (normal operation), or
343     should extend the selection itelf and return true to suppress the built-in
344     processing.
345     .Sp
346     See the \fIselection\fR example extension.
347 root 1.1 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
348     .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
349     .IX Item "on_view_change $term, $offset"
350     Called whenever the view offset changes, i..e the user or program
351     scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
352     show this many lines of scrollback.
353     .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
354     .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
355     .IX Item "on_scroll_back $term, $lines, $saved"
356     Called whenever lines scroll out of the terminal area into the scrollback
357     buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
358     than the scroll back buffer or the terminal.
359     .Sp
360     It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
361     \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
362     number of lines that will be in the scrollback buffer.
363 root 1.11 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
364     .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
365     .IX Item "on_osc_seq $term, $string"
366     Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
367     operating system command) is processed. Cursor position and other state
368     information is up-to-date when this happens. For interoperability, the
369     string should start with the extension name and a colon, to distinguish
370     it from commands for other extensions, and this might be enforced in the
371     future.
372     .Sp
373     Be careful not ever to trust (in a security sense) the data you receive,
374     as its source can not easily be controleld (e\-mail content, messages from
375     other users on the same system etc.).
376 root 1.14 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
377     .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
378     .IX Item "on_add_lines $term, $string"
379     Called whenever text is about to be output, with the text as argument. You
380     can filter/change and output the text yourself by returning a true value
381     and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
382     might be very slow, however, as your hook is called for \fBall\fR text being
383     output.
384 root 1.19 .ie n .IP "on_tt_write $term\fR, \f(CW$octets" 4
385     .el .IP "on_tt_write \f(CW$term\fR, \f(CW$octets\fR" 4
386     .IX Item "on_tt_write $term, $octets"
387     Called whenever some data is written to the tty/pty and can be used to
388     suppress or filter tty input.
389 root 1.14 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
390     .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
391     .IX Item "on_line_update $term, $row"
392     Called whenever a line was updated or changed. Can be used to filter
393     screen output (e.g. underline urls or other useless stuff). Only lines
394     that are being shown will be filtered, and, due to performance reasons,
395     not always immediately.
396     .Sp
397     The row number is always the topmost row of the line if the line spans
398     multiple rows.
399     .Sp
400     Please note that, if you change the line, then the hook might get called
401     later with the already-modified line (e.g. if unrelated parts change), so
402     you cannot just toggle rendition bits, but only set them.
403 root 1.1 .ie n .IP "on_refresh_begin $term" 4
404     .el .IP "on_refresh_begin \f(CW$term\fR" 4
405     .IX Item "on_refresh_begin $term"
406     Called just before the screen gets redrawn. Can be used for overlay
407     or similar effects by modify terminal contents in refresh_begin, and
408     restoring them in refresh_end. The built-in overlay and selection display
409     code is run after this hook, and takes precedence.
410     .ie n .IP "on_refresh_end $term" 4
411     .el .IP "on_refresh_end \f(CW$term\fR" 4
412     .IX Item "on_refresh_end $term"
413     Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
414 root 1.5 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
415     .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
416     .IX Item "on_keyboard_command $term, $string"
417     Called whenever the user presses a key combination that has a
418     \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
419     resource in the @@RXVT_NAME@@(1) manpage).
420 root 1.15 .ie n .IP "on_focus_in $term" 4
421     .el .IP "on_focus_in \f(CW$term\fR" 4
422     .IX Item "on_focus_in $term"
423     Called whenever the window gets the keyboard focus, before rxvt-unicode
424     does focus in processing.
425     .ie n .IP "on_focus_out $term" 4
426     .el .IP "on_focus_out \f(CW$term\fR" 4
427     .IX Item "on_focus_out $term"
428     Called wheneever the window loses keyboard focus, before rxvt-unicode does
429     focus out processing.
430 root 1.19 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets" 4
431     .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets\fR" 4
432     .IX Item "on_key_press $term, $event, $keysym, $octets"
433 root 1.14 .PD 0
434 root 1.19 .ie n .IP "on_key_release $term\fR, \f(CW$event\fR, \f(CW$keysym" 4
435     .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR" 4
436     .IX Item "on_key_release $term, $event, $keysym"
437 root 1.14 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
438     .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
439     .IX Item "on_button_press $term, $event"
440     .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
441     .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
442     .IX Item "on_button_release $term, $event"
443     .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
444     .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
445     .IX Item "on_motion_notify $term, $event"
446 root 1.15 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
447     .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
448     .IX Item "on_map_notify $term, $event"
449     .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
450     .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
451     .IX Item "on_unmap_notify $term, $event"
452 root 1.14 .PD
453     Called whenever the corresponding X event is received for the terminal If
454     the hook returns true, then the even will be ignored by rxvt\-unicode.
455     .Sp
456     The event is a hash with most values as named by Xlib (see the XEvent
457     manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
458     and column under the mouse cursor.
459     .Sp
460     \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
461     output, if any, in locale-specific encoding.
462     .Sp
463     subwindow.
464 root 1.9 .ie n .Sh "Variables in the ""urxvt"" Package"
465     .el .Sh "Variables in the \f(CWurxvt\fP Package"
466     .IX Subsection "Variables in the urxvt Package"
467 root 1.21 .IP "$urxvt::LIBDIR" 4
468     .IX Item "$urxvt::LIBDIR"
469     The rxvt-unicode library directory, where, among other things, the perl
470     modules and scripts are stored.
471     .ie n .IP "$urxvt::RESCLASS, $urxvt::RESCLASS" 4
472     .el .IP "$urxvt::RESCLASS, \f(CW$urxvt::RESCLASS\fR" 4
473     .IX Item "$urxvt::RESCLASS, $urxvt::RESCLASS"
474     The resource class and name rxvt-unicode uses to look up X resources.
475     .IP "$urxvt::RXVTNAME" 4
476     .IX Item "$urxvt::RXVTNAME"
477     The basename of the installed binaries, usually \f(CW\*(C`urxvt\*(C'\fR.
478 root 1.9 .IP "$urxvt::TERM" 4
479     .IX Item "$urxvt::TERM"
480 root 1.14 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
481     object, whenever a callback/hook is executing.
482 root 1.1 .ie n .Sh "Functions in the ""urxvt"" Package"
483     .el .Sh "Functions in the \f(CWurxvt\fP Package"
484     .IX Subsection "Functions in the urxvt Package"
485     .ie n .IP "urxvt::fatal $errormessage" 4
486     .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
487     .IX Item "urxvt::fatal $errormessage"
488     Fatally aborts execution with the given error message. Avoid at all
489     costs! The only time this is acceptable is when the terminal process
490     starts up.
491     .ie n .IP "urxvt::warn $string" 4
492     .el .IP "urxvt::warn \f(CW$string\fR" 4
493     .IX Item "urxvt::warn $string"
494 root 1.3 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
495 root 1.1 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
496     that calls this function.
497     .Sp
498     Using this function has the advantage that its output ends up in the
499     correct place, e.g. on stderr of the connecting urxvtc client.
500 root 1.22 .Sp
501     Messages have a size limit of 1023 bytes currently.
502 root 1.18 .IP "$is_safe = urxvt::safe" 4
503     .IX Item "$is_safe = urxvt::safe"
504     Returns true when it is safe to do potentially unsafe things, such as
505     evaluating perl code specified by the user. This is true when urxvt was
506     started setuid or setgid.
507 root 1.1 .IP "$time = urxvt::NOW" 4
508     .IX Item "$time = urxvt::NOW"
509     Returns the \*(L"current time\*(R" (as per the event loop).
510 root 1.15 .IP "urxvt::CurrentTime" 4
511     .IX Item "urxvt::CurrentTime"
512     .PD 0
513     .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
514     .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
515     .PD
516 root 1.16 Various constants for use in X calls and event processing.
517 root 1.8 .Sh "\s-1RENDITION\s0"
518     .IX Subsection "RENDITION"
519     Rendition bitsets contain information about colour, font, font styles and
520     similar information for each screen cell.
521     .PP
522     The following \*(L"macros\*(R" deal with changes in rendition sets. You should
523     never just create a bitset, you should always modify an existing one,
524     as they contain important information required for correct operation of
525     rxvt\-unicode.
526     .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
527     .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
528     Returns the default rendition, as used when the terminal is starting up or
529     being reset. Useful as a base to start when creating renditions.
530     .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
531     .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
532     Return the rendition mask used for overlays by default.
533     .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
534     .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
535     Return the bit that enabled bold, italic, blink, reverse-video and
536     underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
537     the bitset.
538     .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
539     .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
540     .IX Item "$foreground = urxvt::GET_BASEFG $rend"
541     .PD 0
542     .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
543     .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
544     .IX Item "$background = urxvt::GET_BASEBG $rend"
545     .PD
546     Return the foreground/background colour index, respectively.
547 root 1.21 .ie n .IP "$rend = urxvt::SET_FGCOLOR $rend\fR, \f(CW$new_colour" 4
548     .el .IP "$rend = urxvt::SET_FGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
549     .IX Item "$rend = urxvt::SET_FGCOLOR $rend, $new_colour"
550 root 1.8 .PD 0
551 root 1.21 .ie n .IP "$rend = urxvt::SET_BGCOLOR $rend\fR, \f(CW$new_colour" 4
552     .el .IP "$rend = urxvt::SET_BGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
553     .IX Item "$rend = urxvt::SET_BGCOLOR $rend, $new_colour"
554 root 1.8 .PD
555     Replace the foreground/background colour in the rendition mask with the
556     specified one.
557 root 1.21 .ie n .IP "$value = urxvt::GET_CUSTOM $rend" 4
558     .el .IP "$value = urxvt::GET_CUSTOM \f(CW$rend\fR" 4
559     .IX Item "$value = urxvt::GET_CUSTOM $rend"
560 root 1.8 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
561     extensions. They can be set and changed as you like and are initially
562     zero.
563 root 1.21 .ie n .IP "$rend = urxvt::SET_CUSTOM $rend\fR, \f(CW$new_value" 4
564     .el .IP "$rend = urxvt::SET_CUSTOM \f(CW$rend\fR, \f(CW$new_value\fR" 4
565     .IX Item "$rend = urxvt::SET_CUSTOM $rend, $new_value"
566 root 1.8 Change the custom value.
567 root 1.16 .ie n .Sh "The ""urxvt::anyevent"" Class"
568     .el .Sh "The \f(CWurxvt::anyevent\fP Class"
569     .IX Subsection "The urxvt::anyevent Class"
570     The sole purpose of this class is to deliver an interface to the
571     \&\f(CW\*(C`AnyEvent\*(C'\fR module \- any module using it will work inside urxvt without
572 root 1.21 further programming. The only exception is that you cannot wait on
573     condition variables, but non-blocking condvar use is ok. What this means
574     is that you cannot use blocking APIs, but the non-blocking variant should
575     work.
576 root 1.1 .ie n .Sh "The ""urxvt::term"" Class"
577     .el .Sh "The \f(CWurxvt::term\fP Class"
578     .IX Subsection "The urxvt::term Class"
579 root 1.22 .ie n .IP "$term = new urxvt::term $envhashref\fR, \f(CW$rxvtname, [arg...]" 4
580     .el .IP "$term = new urxvt::term \f(CW$envhashref\fR, \f(CW$rxvtname\fR, [arg...]" 4
581     .IX Item "$term = new urxvt::term $envhashref, $rxvtname, [arg...]"
582     Creates a new terminal, very similar as if you had started it with system
583 root 1.23 \&\f(CW\*(C`$rxvtname, arg...\*(C'\fR. \f(CW$envhashref\fR must be a reference to a \f(CW%ENV\fR\-like
584     hash which defines the environment of the new terminal.
585     .Sp
586     Croaks (and probably outputs an error message) if the new instance
587 root 1.22 couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new instance didn't
588     initialise perl, and the terminal object otherwise. The \f(CW\*(C`init\*(C'\fR and
589     \&\f(CW\*(C`start\*(C'\fR hooks will be called during this call.
590 root 1.14 .IP "$term\->destroy" 4
591     .IX Item "$term->destroy"
592 root 1.21 Destroy the terminal object (close the window, free resources
593     etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
594     watchers (timers, io watchers) are still active.
595 root 1.15 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
596     .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
597     .IX Item "$isset = $term->option ($optval[, $set])"
598     Returns true if the option specified by \f(CW$optval\fR is enabled, and
599     optionally change it. All option values are stored by name in the hash
600     \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
601     .Sp
602     Here is a a likely non-exhaustive list of option names, please see the
603     source file \fI/src/optinc.h\fR to see the actual list:
604     .Sp
605     .Vb 6
606     \& borderLess console cursorBlink cursorUnderline hold iconic insecure
607     \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
608     \& pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
609     \& scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
610     \& secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
611     \& tripleclickwords utmpInhibit visualBell
612     .Ve
613 root 1.2 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
614     .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
615     .IX Item "$value = $term->resource ($name[, $newval])"
616     Returns the current resource value associated with a given name and
617     optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
618     hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
619     .Sp
620     The new value must be properly encoded to a suitable character encoding
621     before passing it to this method. Similarly, the returned value may need
622     to be converted from the used encoding to text.
623     .Sp
624     Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
625     as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
626     likely change).
627     .Sp
628     Please note that resource strings will currently only be freed when the
629     terminal is destroyed, so changing options frequently will eat memory.
630     .Sp
631     Here is a a likely non-exhaustive list of resource names, not all of which
632 root 1.15 are supported in every build, please see the source file \fI/src/rsinc.h\fR
633     to see the actual list:
634 root 1.2 .Sp
635     .Vb 12
636     \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
637     \& borderLess color cursorBlink cursorUnderline cutchars delete_key
638     \& display_name embed ext_bwidth fade font geometry hold iconName
639     \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
640 root 1.4 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
641 root 1.12 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
642 root 1.3 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
643     \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
644     \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
645     \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
646     \& shade term_name title transparent transparent_all tripleclickwords
647     \& utmpInhibit visualBell
648 root 1.2 .Ve
649 root 1.24 .ie n .IP "$value = $term\->x_resource ($pattern)" 4
650     .el .IP "$value = \f(CW$term\fR\->x_resource ($pattern)" 4
651     .IX Item "$value = $term->x_resource ($pattern)"
652     Returns the X\-Resource for the given pattern, excluding the program or
653     class name, i.e. \f(CW\*(C`$term\->x_resource ("boldFont")\*(C'\fR should return the
654     same value as used by this instance of rxvt\-unicode. Returns \f(CW\*(C`undef\*(C'\fR if no
655     resource with that pattern exists.
656     .Sp
657     This method should only be called during the \f(CW\*(C`on_start\*(C'\fR hook, as there is
658     only one resource database per display, and later invocations might return
659     the wrong resources.
660 root 1.19 .ie n .IP "$success = $term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string)" 4
661     .el .IP "$success = \f(CW$term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string\fR)" 4
662     .IX Item "$success = $term->parse_keysym ($keysym_spec, $command_string)"
663     Adds a keymap translation exactly as specified via a resource. See the
664     \&\f(CW\*(C`keysym\*(C'\fR resource in the @@RXVT_NAME@@(1) manpage.
665 root 1.14 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
666     .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
667     .IX Item "$rend = $term->rstyle ([$new_rstyle])"
668     Return and optionally change the current rendition. Text that is output by
669     the terminal application will use this style.
670 root 1.13 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
671     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
672     .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
673     Return the current coordinates of the text cursor position and optionally
674     set it (which is usually bad as applications don't expect that).
675 root 1.1 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
676     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
677     .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
678     .PD 0
679     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
680     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
681     .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
682     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
683     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
684     .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
685     .PD
686     Return the current values of the selection mark, begin or end positions,
687     and optionally set them to new values.
688     .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
689     .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
690     .IX Item "$success = $term->selection_grab ($eventtime)"
691     Try to request the primary selection from the server (for example, as set
692     by the next method).
693     .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
694     .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
695     .IX Item "$oldtext = $term->selection ([$newtext])"
696     Return the current selection text and optionally replace it by \f(CW$newtext\fR.
697 root 1.19 .ie n .IP "$term\->overlay_simple ($x, $y\fR, \f(CW$text)" 4
698     .el .IP "$term\->overlay_simple ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
699     .IX Item "$term->overlay_simple ($x, $y, $text)"
700     Create a simple multi-line overlay box. See the next method for details.
701 root 1.8 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
702     .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
703     .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
704 root 1.1 Create a new (empty) overlay at the given position with the given
705 root 1.8 width/height. \f(CW$rstyle\fR defines the initial rendition style
706     (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
707     .Sp
708     If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
709     around the box.
710     .Sp
711     If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
712     right/bottom side, respectively.
713     .Sp
714     This method returns an urxvt::overlay object. The overlay will be visible
715     as long as the perl object is referenced.
716     .Sp
717 root 1.9 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
718     .RS 4
719 root 1.8 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
720     .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
721     .IX Item "$overlay->set ($x, $y, $text, $rend)"
722     Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
723     text in rxvt\-unicode's special encoding and an array of rendition values
724     at a specific position inside the overlay.
725 root 1.9 .IP "$overlay\->hide" 4
726     .IX Item "$overlay->hide"
727     If visible, hide the overlay, but do not destroy it.
728     .IP "$overlay\->show" 4
729     .IX Item "$overlay->show"
730     If hidden, display the overlay again.
731     .RE
732     .RS 4
733     .RE
734 root 1.15 .ie n .IP "$popup = $term\->popup ($event)" 4
735     .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
736     .IX Item "$popup = $term->popup ($event)"
737     Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
738     \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
739     currently).
740 root 1.14 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
741     .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
742     .IX Item "$cellwidth = $term->strwidth ($string)"
743 root 1.3 Returns the number of screen-cells this string would need. Correctly
744     accounts for wide and combining characters.
745 root 1.14 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
746     .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
747     .IX Item "$octets = $term->locale_encode ($string)"
748 root 1.3 Convert the given text string into the corresponding locale encoding.
749 root 1.14 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
750     .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
751     .IX Item "$string = $term->locale_decode ($octets)"
752 root 1.3 Convert the given locale-encoded octets into a perl string.
753 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
754     .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
755     .IX Item "$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])"
756     XORs the rendition values in the given span with the provided value
757     (default: \f(CW\*(C`RS_RVid\*(C'\fR). Useful in refresh hooks to provide effects similar
758     to the selection.
759     .ie n .IP "$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$rstyle2]])" 4
760     .el .IP "$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
761     .IX Item "$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])"
762     Similar to \f(CW\*(C`scr_xor_span\*(C'\fR, but xors a rectangle instead. Trailing
763     whitespace will additionally be xored with the \f(CW$rstyle2\fR, which defaults
764     to \f(CW\*(C`RS_RVid | RS_Uline\*(C'\fR, which removes reverse video again and underlines
765     it instead.
766     .IP "$term\->scr_bell" 4
767     .IX Item "$term->scr_bell"
768     Ring the bell!
769 root 1.14 .IP "$term\->scr_add_lines ($string)" 4
770     .IX Item "$term->scr_add_lines ($string)"
771     Write the given text string to the screen, as if output by the application
772     running inside the terminal. It may not contain command sequences (escape
773     codes), but is free to use line feeds, carriage returns and tabs. The
774     string is a normal text string, not in locale-dependent encoding.
775     .Sp
776     Normally its not a good idea to use this function, as programs might be
777     confused by changes in cursor position or scrolling. Its useful inside a
778     \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
779     .IP "$term\->cmd_parse ($octets)" 4
780     .IX Item "$term->cmd_parse ($octets)"
781     Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
782     locale-specific encoding of the terminal and can contain command sequences
783     (escape codes) that will be interpreted.
784 root 1.3 .IP "$term\->tt_write ($octets)" 4
785     .IX Item "$term->tt_write ($octets)"
786     Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
787 root 1.6 pass characters instead of octets, you should convert your strings first
788     to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
789 root 1.19 .ie n .IP "$old_events = $term\->pty_ev_events ([$new_events])" 4
790     .el .IP "$old_events = \f(CW$term\fR\->pty_ev_events ([$new_events])" 4
791     .IX Item "$old_events = $term->pty_ev_events ([$new_events])"
792     Replaces the event mask of the pty watcher by the given event mask. Can
793     be used to suppress input and output handling to the pty/tty. See the
794     description of \f(CW\*(C`urxvt::timer\->events\*(C'\fR. Make sure to always restore
795     the previous value.
796 root 1.14 .ie n .IP "$windowid = $term\->parent" 4
797     .el .IP "$windowid = \f(CW$term\fR\->parent" 4
798     .IX Item "$windowid = $term->parent"
799     Return the window id of the toplevel window.
800     .ie n .IP "$windowid = $term\->vt" 4
801     .el .IP "$windowid = \f(CW$term\fR\->vt" 4
802     .IX Item "$windowid = $term->vt"
803     Return the window id of the terminal window.
804 root 1.13 .ie n .IP "$window_width = $term\->width" 4
805     .el .IP "$window_width = \f(CW$term\fR\->width" 4
806     .IX Item "$window_width = $term->width"
807 root 1.6 .PD 0
808 root 1.13 .ie n .IP "$window_height = $term\->height" 4
809     .el .IP "$window_height = \f(CW$term\fR\->height" 4
810     .IX Item "$window_height = $term->height"
811     .ie n .IP "$font_width = $term\->fwidth" 4
812     .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
813     .IX Item "$font_width = $term->fwidth"
814     .ie n .IP "$font_height = $term\->fheight" 4
815     .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
816     .IX Item "$font_height = $term->fheight"
817     .ie n .IP "$font_ascent = $term\->fbase" 4
818     .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
819     .IX Item "$font_ascent = $term->fbase"
820     .ie n .IP "$terminal_rows = $term\->nrow" 4
821     .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
822     .IX Item "$terminal_rows = $term->nrow"
823     .ie n .IP "$terminal_columns = $term\->ncol" 4
824     .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
825     .IX Item "$terminal_columns = $term->ncol"
826     .ie n .IP "$has_focus = $term\->focus" 4
827     .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
828     .IX Item "$has_focus = $term->focus"
829     .ie n .IP "$is_mapped = $term\->mapped" 4
830     .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
831     .IX Item "$is_mapped = $term->mapped"
832     .ie n .IP "$max_scrollback = $term\->saveLines" 4
833     .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
834     .IX Item "$max_scrollback = $term->saveLines"
835     .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
836     .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
837     .IX Item "$nrow_plus_saveLines = $term->total_rows"
838     .ie n .IP "$lines_in_scrollback = $term\->nsaved" 4
839     .el .IP "$lines_in_scrollback = \f(CW$term\fR\->nsaved" 4
840     .IX Item "$lines_in_scrollback = $term->nsaved"
841 root 1.6 .PD
842 root 1.13 Return various integers describing terminal characteristics.
843 root 1.22 .ie n .IP "$x_display = $term\->display_id" 4
844     .el .IP "$x_display = \f(CW$term\fR\->display_id" 4
845     .IX Item "$x_display = $term->display_id"
846     Return the \s-1DISPLAY\s0 used by rxvt\-unicode.
847 root 1.19 .ie n .IP "$lc_ctype = $term\->locale" 4
848     .el .IP "$lc_ctype = \f(CW$term\fR\->locale" 4
849     .IX Item "$lc_ctype = $term->locale"
850     Returns the \s-1LC_CTYPE\s0 category string used by this rxvt\-unicode.
851 root 1.22 .ie n .IP "$env = $term\->env" 4
852     .el .IP "$env = \f(CW$term\fR\->env" 4
853     .IX Item "$env = $term->env"
854     Returns a copy of the environment in effect for the terminal as a hashref
855     similar to \f(CW\*(C`\e%ENV\*(C'\fR.
856 root 1.15 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
857     .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
858     .IX Item "$modifiermask = $term->ModLevel3Mask"
859     .PD 0
860     .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
861     .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
862     .IX Item "$modifiermask = $term->ModMetaMask"
863     .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
864     .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
865     .IX Item "$modifiermask = $term->ModNumLockMask"
866     .PD
867     Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
868     AltGr), the meta key (often Alt) and the num lock key, if applicable.
869 root 1.6 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
870     .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
871     .IX Item "$view_start = $term->view_start ([$newvalue])"
872     Returns the negative row number of the topmost line. Minimum value is
873     \&\f(CW0\fR, which displays the normal terminal contents. Larger values scroll
874     this many lines into the scrollback buffer.
875     .IP "$term\->want_refresh" 4
876     .IX Item "$term->want_refresh"
877     Requests a screen refresh. At the next opportunity, rxvt-unicode will
878     compare the on-screen display with its stored representation. If they
879     differ, it redraws the differences.
880     .Sp
881     Used after changing terminal contents to display them.
882     .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
883     .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
884     .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
885     Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
886     is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
887     terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
888 root 1.9 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
889     is requested.
890 root 1.6 .Sp
891     If \f(CW$new_text\fR is specified, it will replace characters in the current
892     line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
893 root 1.8 to replace only parts of a line. The font index in the rendition will
894 root 1.6 automatically be updated.
895     .Sp
896     \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
897     than one cell when displayed are padded with urxvt::NOCHAR characters
898     (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
899     that do not fit into the normal tetx encoding will be replaced with
900     characters in the private use area.
901     .Sp
902     You have to obey this encoding when changing text. The advantage is
903     that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
904     characters.
905     .Sp
906     The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
907     can be used to convert normal strings into this encoding and vice versa.
908     .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
909     .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
910     .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
911     Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
912     bitsets. Rendition bitsets contain information about colour, font, font
913     styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
914     .Sp
915     When setting rendition, the font mask will be ignored.
916     .Sp
917 root 1.8 See the section on \s-1RENDITION\s0, above.
918 root 1.6 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
919     .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
920     .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
921 root 1.9 Returns the number of screen cells that are in use (\*(L"the line
922     length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
923     line is joined with the following one.
924     .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
925     .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
926     .IX Item "$bool = $term->is_longer ($row_number)"
927     Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
928     joined with the following row), which means all characters are in use
929     and it is continued on the next row (and possibly a continuation of the
930     previous row(s)).
931     .ie n .IP "$line = $term\->line ($row_number)" 4
932     .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
933     .IX Item "$line = $term->line ($row_number)"
934     Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
935     about the logical line that row \f(CW$row_number\fR is part of. It supports the
936     following methods:
937     .RS 4
938 root 1.14 .ie n .IP "$text = $line\->t ([$new_text])" 4
939     .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
940     .IX Item "$text = $line->t ([$new_text])"
941     Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
942     .ie n .IP "$rend = $line\->r ([$new_rend])" 4
943     .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
944     .IX Item "$rend = $line->r ([$new_rend])"
945     Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
946 root 1.9 .ie n .IP "$length = $line\->l" 4
947     .el .IP "$length = \f(CW$line\fR\->l" 4
948     .IX Item "$length = $line->l"
949     Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
950     .ie n .IP "$rownum = $line\->beg" 4
951     .el .IP "$rownum = \f(CW$line\fR\->beg" 4
952     .IX Item "$rownum = $line->beg"
953     .PD 0
954     .ie n .IP "$rownum = $line\->end" 4
955     .el .IP "$rownum = \f(CW$line\fR\->end" 4
956     .IX Item "$rownum = $line->end"
957     .PD
958     Return the row number of the first/last row of the line, respectively.
959     .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
960     .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
961     .IX Item "$offset = $line->offset_of ($row, $col)"
962     Returns the character offset of the given row|col pair within the logical
963     line.
964     .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
965     .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
966     .IX Item "($row, $col) = $line->coord_of ($offset)"
967     Translates a string offset into terminal coordinates again.
968     .RE
969     .RS 4
970     .RE
971 root 1.17 .ie n .IP "$text = $term\fR\->special_encode \f(CW$string" 4
972     .el .IP "$text = \f(CW$term\fR\->special_encode \f(CW$string\fR" 4
973     .IX Item "$text = $term->special_encode $string"
974 root 1.6 Converts a perl string into the special encoding used by rxvt\-unicode,
975     where one character corresponds to one screen cell. See
976     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
977     .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
978     .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
979     .IX Item "$string = $term->special_decode $text"
980     Converts rxvt-unicodes text reprsentation into a perl string. See
981     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
982 root 1.17 .ie n .IP "$success = $term\fR\->grab_button ($button, \f(CW$modifiermask)" 4
983     .el .IP "$success = \f(CW$term\fR\->grab_button ($button, \f(CW$modifiermask\fR)" 4
984     .IX Item "$success = $term->grab_button ($button, $modifiermask)"
985 root 1.18 Registers a synchronous button grab. See the XGrabButton manpage.
986 root 1.17 .ie n .IP "$success = $term\fR\->grab ($eventtime[, \f(CW$sync])" 4
987     .el .IP "$success = \f(CW$term\fR\->grab ($eventtime[, \f(CW$sync\fR])" 4
988     .IX Item "$success = $term->grab ($eventtime[, $sync])"
989     Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
990     synchronous (\f(CW$sync\fR is true). Also remembers the grab timestampe.
991     .IP "$term\->allow_events_async" 4
992     .IX Item "$term->allow_events_async"
993     Calls XAllowEvents with AsyncBoth for the most recent grab.
994     .IP "$term\->allow_events_sync" 4
995     .IX Item "$term->allow_events_sync"
996     Calls XAllowEvents with SyncBoth for the most recent grab.
997     .IP "$term\->allow_events_replay" 4
998     .IX Item "$term->allow_events_replay"
999     Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1000     recent grab.
1001     .IP "$term\->ungrab" 4
1002     .IX Item "$term->ungrab"
1003     Calls XUngrab for the most recent grab. Is called automatically on
1004     evaluation errors, as it is better to lose the grab in the error case as
1005     the session.
1006 root 1.15 .ie n .Sh "The ""urxvt::popup"" Class"
1007     .el .Sh "The \f(CWurxvt::popup\fP Class"
1008     .IX Subsection "The urxvt::popup Class"
1009 root 1.21 .IP "$popup\->add_title ($title)" 4
1010     .IX Item "$popup->add_title ($title)"
1011     Adds a non-clickable title to the popup.
1012     .IP "$popup\->add_separator ([$sepchr])" 4
1013     .IX Item "$popup->add_separator ([$sepchr])"
1014     Creates a separator, optionally using the character given as \f(CW$sepchr\fR.
1015     .ie n .IP "$popup\->add_button ($text, $cb)" 4
1016     .el .IP "$popup\->add_button ($text, \f(CW$cb\fR)" 4
1017     .IX Item "$popup->add_button ($text, $cb)"
1018     Adds a clickable button to the popup. \f(CW$cb\fR is called whenever it is
1019     selected.
1020     .ie n .IP "$popup\->add_toggle ($text, $cb\fR, \f(CW$initial_value)" 4
1021     .el .IP "$popup\->add_toggle ($text, \f(CW$cb\fR, \f(CW$initial_value\fR)" 4
1022     .IX Item "$popup->add_toggle ($text, $cb, $initial_value)"
1023     Adds a toggle/checkbox item to the popup. Teh callback gets called
1024     whenever it gets toggled, with a boolean indicating its value as its first
1025     argument.
1026     .IP "$popup\->show" 4
1027     .IX Item "$popup->show"
1028     Displays the popup (which is initially hidden).
1029 root 1.1 .ie n .Sh "The ""urxvt::timer"" Class"
1030     .el .Sh "The \f(CWurxvt::timer\fP Class"
1031     .IX Subsection "The urxvt::timer Class"
1032     This class implements timer watchers/events. Time is represented as a
1033     fractional number of seconds since the epoch. Example:
1034 root 1.23 .PP
1035 root 1.8 .Vb 8
1036     \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1037 root 1.1 \& $term->{timer} = urxvt::timer
1038     \& ->new
1039 root 1.8 \& ->interval (1)
1040 root 1.1 \& ->cb (sub {
1041 root 1.8 \& $term->{overlay}->set (0, 0,
1042     \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1043 root 1.1 \& });
1044     .Ve
1045     .IP "$timer = new urxvt::timer" 4
1046     .IX Item "$timer = new urxvt::timer"
1047 root 1.8 Create a new timer object in started state. It is scheduled to fire
1048     immediately.
1049 root 1.1 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
1050     .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
1051     .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
1052     Set the callback to be called when the timer triggers.
1053     .ie n .IP "$tstamp = $timer\->at" 4
1054     .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
1055     .IX Item "$tstamp = $timer->at"
1056     Return the time this watcher will fire next.
1057     .ie n .IP "$timer = $timer\->set ($tstamp)" 4
1058     .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
1059     .IX Item "$timer = $timer->set ($tstamp)"
1060     Set the time the event is generated to \f(CW$tstamp\fR.
1061 root 1.8 .ie n .IP "$timer = $timer\->interval ($interval)" 4
1062     .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
1063     .IX Item "$timer = $timer->interval ($interval)"
1064     Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
1065     stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
1066     is automatically rescheduled at the given intervals.
1067 root 1.1 .ie n .IP "$timer = $timer\->start" 4
1068     .el .IP "$timer = \f(CW$timer\fR\->start" 4
1069     .IX Item "$timer = $timer->start"
1070     Start the timer.
1071     .ie n .IP "$timer = $timer\->start ($tstamp)" 4
1072     .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
1073     .IX Item "$timer = $timer->start ($tstamp)"
1074     Set the event trigger time to \f(CW$tstamp\fR and start the timer.
1075     .ie n .IP "$timer = $timer\->stop" 4
1076     .el .IP "$timer = \f(CW$timer\fR\->stop" 4
1077     .IX Item "$timer = $timer->stop"
1078     Stop the timer.
1079     .ie n .Sh "The ""urxvt::iow"" Class"
1080     .el .Sh "The \f(CWurxvt::iow\fP Class"
1081     .IX Subsection "The urxvt::iow Class"
1082     This class implements io watchers/events. Example:
1083 root 1.23 .PP
1084 root 1.1 .Vb 12
1085     \& $term->{socket} = ...
1086     \& $term->{iow} = urxvt::iow
1087     \& ->new
1088     \& ->fd (fileno $term->{socket})
1089 root 1.19 \& ->events (urxvt::EVENT_READ)
1090 root 1.1 \& ->start
1091     \& ->cb (sub {
1092     \& my ($iow, $revents) = @_;
1093     \& # $revents must be 1 here, no need to check
1094     \& sysread $term->{socket}, my $buf, 8192
1095     \& or end-of-file;
1096     \& });
1097     .Ve
1098     .IP "$iow = new urxvt::iow" 4
1099     .IX Item "$iow = new urxvt::iow"
1100     Create a new io watcher object in stopped state.
1101     .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
1102     .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
1103     .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
1104     Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
1105     is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
1106     .ie n .IP "$iow = $iow\->fd ($fd)" 4
1107     .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
1108     .IX Item "$iow = $iow->fd ($fd)"
1109     Set the filedescriptor (not handle) to watch.
1110     .ie n .IP "$iow = $iow\->events ($eventmask)" 4
1111     .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
1112     .IX Item "$iow = $iow->events ($eventmask)"
1113 root 1.19 Set the event mask to watch. The only allowed values are
1114     \&\f(CW\*(C`urxvt::EVENT_READ\*(C'\fR and \f(CW\*(C`urxvt::EVENT_WRITE\*(C'\fR, which might be ORed
1115     together, or \f(CW\*(C`urxvt::EVENT_NONE\*(C'\fR.
1116 root 1.1 .ie n .IP "$iow = $iow\->start" 4
1117     .el .IP "$iow = \f(CW$iow\fR\->start" 4
1118     .IX Item "$iow = $iow->start"
1119     Start watching for requested events on the given handle.
1120     .ie n .IP "$iow = $iow\->stop" 4
1121     .el .IP "$iow = \f(CW$iow\fR\->stop" 4
1122     .IX Item "$iow = $iow->stop"
1123     Stop watching for events on the given filehandle.
1124 root 1.2 .SH "ENVIRONMENT"
1125     .IX Header "ENVIRONMENT"
1126     .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
1127     .IX Subsection "URXVT_PERL_VERBOSITY"
1128     This variable controls the verbosity level of the perl extension. Higher
1129     numbers indicate more verbose output.
1130 root 1.17 .IP "== 0 \- fatal messages" 4
1131     .IX Item "== 0 - fatal messages"
1132 root 1.2 .PD 0
1133 root 1.17 .IP ">= 3 \- script loading and management" 4
1134     .IX Item ">= 3 - script loading and management"
1135     .IP ">=10 \- all events received" 4
1136     .IX Item ">=10 - all events received"
1137 root 1.2 .PD
1138 root 1.1 .SH "AUTHOR"
1139     .IX Header "AUTHOR"
1140     .Vb 2
1141     \& Marc Lehmann <pcg@goof.com>
1142     \& http://software.schmorp.de/pkg/rxvt-unicode
1143     .Ve