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Revision: 1.23
Committed: Wed Jan 11 01:01:52 2006 UTC (18 years, 6 months ago) by root
Branch: MAIN
Changes since 1.22: +7 -18 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     Uses per-line display filtering (\f(CW\*(C`on_line_update\*(C'\fR) to underline urls.
219     .IP "block-graphics-to-ascii" 4
220     .IX Item "block-graphics-to-ascii"
221     A not very useful example of filtering all text output to the terminal,
222     by replacing all line-drawing characters (U+2500 .. U+259F) by a
223     similar-looking ascii character.
224 root 1.8 .IP "example-refresh-hooks" 4
225     .IX Item "example-refresh-hooks"
226 root 1.6 Displays a very simple digital clock in the upper right corner of the
227     window. Illustrates overwriting the refresh callbacks to create your own
228     overlays or changes.
229 root 1.20 .SH "API DOCUMENTATION"
230     .IX Header "API DOCUMENTATION"
231 root 1.3 .Sh "General \s-1API\s0 Considerations"
232     .IX Subsection "General API Considerations"
233     All objects (such as terminals, time watchers etc.) are typical
234     reference-to-hash objects. The hash can be used to store anything you
235     like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
236 root 1.9 \&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and \fB\s-1MUST\s0 \s-1NOT\s0\fR be accessed or
237 root 1.3 modified).
238     .PP
239     When objects are destroyed on the \*(C+ side, the perl object hashes are
240     emptied, so its best to store related objects such as time watchers and
241     the like inside the terminal object so they get destroyed as soon as the
242     terminal is destroyed.
243 root 1.14 .PP
244     Argument names also often indicate the type of a parameter. Here are some
245     hints on what they mean:
246     .IP "$text" 4
247     .IX Item "$text"
248     Rxvt-unicodes special way of encoding text, where one \*(L"unicode\*(R" character
249 root 1.23 always represents one screen cell. See ROW_t for a discussion of this format.
250 root 1.14 .IP "$string" 4
251     .IX Item "$string"
252     A perl text string, with an emphasis on \fItext\fR. It can store all unicode
253     characters and is to be distinguished with text encoded in a specific
254     encoding (often locale\-specific) and binary data.
255     .IP "$octets" 4
256     .IX Item "$octets"
257     Either binary data or \- more common \- a text string encoded in a
258     locale-specific way.
259 root 1.19 .Sh "Extension Objects"
260     .IX Subsection "Extension Objects"
261     Very perl extension is a perl class. A separate perl object is created
262     for each terminal and each extension and passed as the first parameter to
263     hooks. So extensions can use their \f(CW$self\fR object without having to think
264     about other extensions, with the exception of methods and members that
265     begin with an underscore character \f(CW\*(C`_\*(C'\fR: these are reserved for internal
266     use.
267     .PP
268     Although it isn't a \f(CW\*(C`urxvt::term\*(C'\fR object, you can call all methods of the
269     \&\f(CW\*(C`urxvt::term\*(C'\fR class on this object.
270     .PP
271     It has the following methods and data members:
272     .ie n .IP "$urxvt_term = $self\->{term}" 4
273     .el .IP "$urxvt_term = \f(CW$self\fR\->{term}" 4
274     .IX Item "$urxvt_term = $self->{term}"
275     Returns the \f(CW\*(C`urxvt::term\*(C'\fR object associated with this instance of the
276     extension. This member \fImust not\fR be changed in any way.
277     .ie n .IP "$self\->enable ($hook_name => $cb\fR, [$hook_name => \f(CW$cb..])" 4
278     .el .IP "$self\->enable ($hook_name => \f(CW$cb\fR, [$hook_name => \f(CW$cb\fR..])" 4
279     .IX Item "$self->enable ($hook_name => $cb, [$hook_name => $cb..])"
280     Dynamically enable the given hooks (named without the \f(CW\*(C`on_\*(C'\fR prefix) for
281     this extension, replacing any previous hook. This is useful when you want
282     to overwrite time-critical hooks only temporarily.
283     .ie n .IP "$self\->disable ($hook_name[, $hook_name..])" 4
284     .el .IP "$self\->disable ($hook_name[, \f(CW$hook_name\fR..])" 4
285     .IX Item "$self->disable ($hook_name[, $hook_name..])"
286     Dynamically disable the given hooks.
287 root 1.1 .Sh "Hooks"
288     .IX Subsection "Hooks"
289 root 1.14 The following subroutines can be declared in extension files, and will be
290 root 1.9 called whenever the relevant event happens.
291     .PP
292 root 1.19 The first argument passed to them is an extension oject as described in
293     the in the \f(CW\*(C`Extension Objects\*(C'\fR section.
294 root 1.1 .PP
295 root 1.19 \&\fBAll\fR of these hooks must return a boolean value. If it is true, then the
296     event counts as being \fIconsumed\fR, and the invocation of other hooks is
297     skipped, and the relevant action might not be carried out by the \*(C+ code.
298     .PP
299     \&\fIWhen in doubt, return a false value (preferably \f(CI\*(C`()\*(C'\fI).\fR
300 root 1.1 .ie n .IP "on_init $term" 4
301     .el .IP "on_init \f(CW$term\fR" 4
302     .IX Item "on_init $term"
303     Called after a new terminal object has been initialized, but before
304 root 1.14 windows are created or the command gets run. Most methods are unsafe to
305     call or deliver senseless data, as terminal size and other characteristics
306     have not yet been determined. You can safely query and change resources,
307     though.
308 root 1.1 .ie n .IP "on_reset $term" 4
309     .el .IP "on_reset \f(CW$term\fR" 4
310     .IX Item "on_reset $term"
311     Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
312     control sequences. Here is where you can react on changes to size-related
313     variables.
314     .ie n .IP "on_start $term" 4
315     .el .IP "on_start \f(CW$term\fR" 4
316     .IX Item "on_start $term"
317     Called at the very end of initialisation of a new terminal, just before
318     returning to the mainloop.
319     .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
320     .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
321     .IX Item "on_sel_make $term, $eventtime"
322     Called whenever a selection has been made by the user, but before the
323     selection text is copied, so changes to the beginning, end or type of the
324     selection will be honored.
325     .Sp
326     Returning a true value aborts selection making by urxvt, in which case you
327     have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
328     .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
329     .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
330     .IX Item "on_sel_grab $term, $eventtime"
331     Called whenever a selection has been copied, but before the selection is
332     requested from the server. The selection text can be queried and changed
333     by calling \f(CW\*(C`$term\->selection\*(C'\fR.
334     .Sp
335     Returning a true value aborts selection grabbing. It will still be hilighted.
336 root 1.9 .ie n .IP "on_sel_extend $term" 4
337     .el .IP "on_sel_extend \f(CW$term\fR" 4
338     .IX Item "on_sel_extend $term"
339     Called whenever the user tries to extend the selection (e.g. with a double
340     click) and is either supposed to return false (normal operation), or
341     should extend the selection itelf and return true to suppress the built-in
342     processing.
343     .Sp
344     See the \fIselection\fR example extension.
345 root 1.1 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
346     .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
347     .IX Item "on_view_change $term, $offset"
348     Called whenever the view offset changes, i..e the user or program
349     scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
350     show this many lines of scrollback.
351     .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
352     .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
353     .IX Item "on_scroll_back $term, $lines, $saved"
354     Called whenever lines scroll out of the terminal area into the scrollback
355     buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
356     than the scroll back buffer or the terminal.
357     .Sp
358     It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
359     \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
360     number of lines that will be in the scrollback buffer.
361 root 1.11 .ie n .IP "on_osc_seq $term\fR, \f(CW$string" 4
362     .el .IP "on_osc_seq \f(CW$term\fR, \f(CW$string\fR" 4
363     .IX Item "on_osc_seq $term, $string"
364     Called whenever the \fB\s-1ESC\s0 ] 777 ; string \s-1ST\s0\fR command sequence (\s-1OSC\s0 =
365     operating system command) is processed. Cursor position and other state
366     information is up-to-date when this happens. For interoperability, the
367     string should start with the extension name and a colon, to distinguish
368     it from commands for other extensions, and this might be enforced in the
369     future.
370     .Sp
371     Be careful not ever to trust (in a security sense) the data you receive,
372     as its source can not easily be controleld (e\-mail content, messages from
373     other users on the same system etc.).
374 root 1.14 .ie n .IP "on_add_lines $term\fR, \f(CW$string" 4
375     .el .IP "on_add_lines \f(CW$term\fR, \f(CW$string\fR" 4
376     .IX Item "on_add_lines $term, $string"
377     Called whenever text is about to be output, with the text as argument. You
378     can filter/change and output the text yourself by returning a true value
379     and calling \f(CW\*(C`$term\->scr_add_lines\*(C'\fR yourself. Please note that this
380     might be very slow, however, as your hook is called for \fBall\fR text being
381     output.
382 root 1.19 .ie n .IP "on_tt_write $term\fR, \f(CW$octets" 4
383     .el .IP "on_tt_write \f(CW$term\fR, \f(CW$octets\fR" 4
384     .IX Item "on_tt_write $term, $octets"
385     Called whenever some data is written to the tty/pty and can be used to
386     suppress or filter tty input.
387 root 1.14 .ie n .IP "on_line_update $term\fR, \f(CW$row" 4
388     .el .IP "on_line_update \f(CW$term\fR, \f(CW$row\fR" 4
389     .IX Item "on_line_update $term, $row"
390     Called whenever a line was updated or changed. Can be used to filter
391     screen output (e.g. underline urls or other useless stuff). Only lines
392     that are being shown will be filtered, and, due to performance reasons,
393     not always immediately.
394     .Sp
395     The row number is always the topmost row of the line if the line spans
396     multiple rows.
397     .Sp
398     Please note that, if you change the line, then the hook might get called
399     later with the already-modified line (e.g. if unrelated parts change), so
400     you cannot just toggle rendition bits, but only set them.
401 root 1.1 .ie n .IP "on_refresh_begin $term" 4
402     .el .IP "on_refresh_begin \f(CW$term\fR" 4
403     .IX Item "on_refresh_begin $term"
404     Called just before the screen gets redrawn. Can be used for overlay
405     or similar effects by modify terminal contents in refresh_begin, and
406     restoring them in refresh_end. The built-in overlay and selection display
407     code is run after this hook, and takes precedence.
408     .ie n .IP "on_refresh_end $term" 4
409     .el .IP "on_refresh_end \f(CW$term\fR" 4
410     .IX Item "on_refresh_end $term"
411     Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
412 root 1.5 .ie n .IP "on_keyboard_command $term\fR, \f(CW$string" 4
413     .el .IP "on_keyboard_command \f(CW$term\fR, \f(CW$string\fR" 4
414     .IX Item "on_keyboard_command $term, $string"
415     Called whenever the user presses a key combination that has a
416     \&\f(CW\*(C`perl:string\*(C'\fR action bound to it (see description of the \fBkeysym\fR
417     resource in the @@RXVT_NAME@@(1) manpage).
418 root 1.15 .ie n .IP "on_focus_in $term" 4
419     .el .IP "on_focus_in \f(CW$term\fR" 4
420     .IX Item "on_focus_in $term"
421     Called whenever the window gets the keyboard focus, before rxvt-unicode
422     does focus in processing.
423     .ie n .IP "on_focus_out $term" 4
424     .el .IP "on_focus_out \f(CW$term\fR" 4
425     .IX Item "on_focus_out $term"
426     Called wheneever the window loses keyboard focus, before rxvt-unicode does
427     focus out processing.
428 root 1.19 .ie n .IP "on_key_press $term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets" 4
429     .el .IP "on_key_press \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR, \f(CW$octets\fR" 4
430     .IX Item "on_key_press $term, $event, $keysym, $octets"
431 root 1.14 .PD 0
432 root 1.19 .ie n .IP "on_key_release $term\fR, \f(CW$event\fR, \f(CW$keysym" 4
433     .el .IP "on_key_release \f(CW$term\fR, \f(CW$event\fR, \f(CW$keysym\fR" 4
434     .IX Item "on_key_release $term, $event, $keysym"
435 root 1.14 .ie n .IP "on_button_press $term\fR, \f(CW$event" 4
436     .el .IP "on_button_press \f(CW$term\fR, \f(CW$event\fR" 4
437     .IX Item "on_button_press $term, $event"
438     .ie n .IP "on_button_release $term\fR, \f(CW$event" 4
439     .el .IP "on_button_release \f(CW$term\fR, \f(CW$event\fR" 4
440     .IX Item "on_button_release $term, $event"
441     .ie n .IP "on_motion_notify $term\fR, \f(CW$event" 4
442     .el .IP "on_motion_notify \f(CW$term\fR, \f(CW$event\fR" 4
443     .IX Item "on_motion_notify $term, $event"
444 root 1.15 .ie n .IP "on_map_notify $term\fR, \f(CW$event" 4
445     .el .IP "on_map_notify \f(CW$term\fR, \f(CW$event\fR" 4
446     .IX Item "on_map_notify $term, $event"
447     .ie n .IP "on_unmap_notify $term\fR, \f(CW$event" 4
448     .el .IP "on_unmap_notify \f(CW$term\fR, \f(CW$event\fR" 4
449     .IX Item "on_unmap_notify $term, $event"
450 root 1.14 .PD
451     Called whenever the corresponding X event is received for the terminal If
452     the hook returns true, then the even will be ignored by rxvt\-unicode.
453     .Sp
454     The event is a hash with most values as named by Xlib (see the XEvent
455     manpage), with the additional members \f(CW\*(C`row\*(C'\fR and \f(CW\*(C`col\*(C'\fR, which are the row
456     and column under the mouse cursor.
457     .Sp
458     \&\f(CW\*(C`on_key_press\*(C'\fR additionally receives the string rxvt-unicode would
459     output, if any, in locale-specific encoding.
460     .Sp
461     subwindow.
462 root 1.9 .ie n .Sh "Variables in the ""urxvt"" Package"
463     .el .Sh "Variables in the \f(CWurxvt\fP Package"
464     .IX Subsection "Variables in the urxvt Package"
465 root 1.21 .IP "$urxvt::LIBDIR" 4
466     .IX Item "$urxvt::LIBDIR"
467     The rxvt-unicode library directory, where, among other things, the perl
468     modules and scripts are stored.
469     .ie n .IP "$urxvt::RESCLASS, $urxvt::RESCLASS" 4
470     .el .IP "$urxvt::RESCLASS, \f(CW$urxvt::RESCLASS\fR" 4
471     .IX Item "$urxvt::RESCLASS, $urxvt::RESCLASS"
472     The resource class and name rxvt-unicode uses to look up X resources.
473     .IP "$urxvt::RXVTNAME" 4
474     .IX Item "$urxvt::RXVTNAME"
475     The basename of the installed binaries, usually \f(CW\*(C`urxvt\*(C'\fR.
476 root 1.9 .IP "$urxvt::TERM" 4
477     .IX Item "$urxvt::TERM"
478 root 1.14 The current terminal. This variable stores the current \f(CW\*(C`urxvt::term\*(C'\fR
479     object, whenever a callback/hook is executing.
480 root 1.1 .ie n .Sh "Functions in the ""urxvt"" Package"
481     .el .Sh "Functions in the \f(CWurxvt\fP Package"
482     .IX Subsection "Functions in the urxvt Package"
483     .ie n .IP "urxvt::fatal $errormessage" 4
484     .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
485     .IX Item "urxvt::fatal $errormessage"
486     Fatally aborts execution with the given error message. Avoid at all
487     costs! The only time this is acceptable is when the terminal process
488     starts up.
489     .ie n .IP "urxvt::warn $string" 4
490     .el .IP "urxvt::warn \f(CW$string\fR" 4
491     .IX Item "urxvt::warn $string"
492 root 1.3 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
493 root 1.1 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
494     that calls this function.
495     .Sp
496     Using this function has the advantage that its output ends up in the
497     correct place, e.g. on stderr of the connecting urxvtc client.
498 root 1.22 .Sp
499     Messages have a size limit of 1023 bytes currently.
500 root 1.18 .IP "$is_safe = urxvt::safe" 4
501     .IX Item "$is_safe = urxvt::safe"
502     Returns true when it is safe to do potentially unsafe things, such as
503     evaluating perl code specified by the user. This is true when urxvt was
504     started setuid or setgid.
505 root 1.1 .IP "$time = urxvt::NOW" 4
506     .IX Item "$time = urxvt::NOW"
507     Returns the \*(L"current time\*(R" (as per the event loop).
508 root 1.15 .IP "urxvt::CurrentTime" 4
509     .IX Item "urxvt::CurrentTime"
510     .PD 0
511     .IP "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier" 4
512     .IX Item "urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, Button5Mask, AnyModifier"
513     .PD
514 root 1.16 Various constants for use in X calls and event processing.
515 root 1.8 .Sh "\s-1RENDITION\s0"
516     .IX Subsection "RENDITION"
517     Rendition bitsets contain information about colour, font, font styles and
518     similar information for each screen cell.
519     .PP
520     The following \*(L"macros\*(R" deal with changes in rendition sets. You should
521     never just create a bitset, you should always modify an existing one,
522     as they contain important information required for correct operation of
523     rxvt\-unicode.
524     .IP "$rend = urxvt::DEFAULT_RSTYLE" 4
525     .IX Item "$rend = urxvt::DEFAULT_RSTYLE"
526     Returns the default rendition, as used when the terminal is starting up or
527     being reset. Useful as a base to start when creating renditions.
528     .IP "$rend = urxvt::OVERLAY_RSTYLE" 4
529     .IX Item "$rend = urxvt::OVERLAY_RSTYLE"
530     Return the rendition mask used for overlays by default.
531     .IP "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline" 4
532     .IX Item "$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline"
533     Return the bit that enabled bold, italic, blink, reverse-video and
534     underline, respectively. To enable such a style, just logically \s-1OR\s0 it into
535     the bitset.
536     .ie n .IP "$foreground = urxvt::GET_BASEFG $rend" 4
537     .el .IP "$foreground = urxvt::GET_BASEFG \f(CW$rend\fR" 4
538     .IX Item "$foreground = urxvt::GET_BASEFG $rend"
539     .PD 0
540     .ie n .IP "$background = urxvt::GET_BASEBG $rend" 4
541     .el .IP "$background = urxvt::GET_BASEBG \f(CW$rend\fR" 4
542     .IX Item "$background = urxvt::GET_BASEBG $rend"
543     .PD
544     Return the foreground/background colour index, respectively.
545 root 1.21 .ie n .IP "$rend = urxvt::SET_FGCOLOR $rend\fR, \f(CW$new_colour" 4
546     .el .IP "$rend = urxvt::SET_FGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
547     .IX Item "$rend = urxvt::SET_FGCOLOR $rend, $new_colour"
548 root 1.8 .PD 0
549 root 1.21 .ie n .IP "$rend = urxvt::SET_BGCOLOR $rend\fR, \f(CW$new_colour" 4
550     .el .IP "$rend = urxvt::SET_BGCOLOR \f(CW$rend\fR, \f(CW$new_colour\fR" 4
551     .IX Item "$rend = urxvt::SET_BGCOLOR $rend, $new_colour"
552 root 1.8 .PD
553     Replace the foreground/background colour in the rendition mask with the
554     specified one.
555 root 1.21 .ie n .IP "$value = urxvt::GET_CUSTOM $rend" 4
556     .el .IP "$value = urxvt::GET_CUSTOM \f(CW$rend\fR" 4
557     .IX Item "$value = urxvt::GET_CUSTOM $rend"
558 root 1.8 Return the \*(L"custom\*(R" value: Every rendition has 5 bits for use by
559     extensions. They can be set and changed as you like and are initially
560     zero.
561 root 1.21 .ie n .IP "$rend = urxvt::SET_CUSTOM $rend\fR, \f(CW$new_value" 4
562     .el .IP "$rend = urxvt::SET_CUSTOM \f(CW$rend\fR, \f(CW$new_value\fR" 4
563     .IX Item "$rend = urxvt::SET_CUSTOM $rend, $new_value"
564 root 1.8 Change the custom value.
565 root 1.16 .ie n .Sh "The ""urxvt::anyevent"" Class"
566     .el .Sh "The \f(CWurxvt::anyevent\fP Class"
567     .IX Subsection "The urxvt::anyevent Class"
568     The sole purpose of this class is to deliver an interface to the
569     \&\f(CW\*(C`AnyEvent\*(C'\fR module \- any module using it will work inside urxvt without
570 root 1.21 further programming. The only exception is that you cannot wait on
571     condition variables, but non-blocking condvar use is ok. What this means
572     is that you cannot use blocking APIs, but the non-blocking variant should
573     work.
574 root 1.1 .ie n .Sh "The ""urxvt::term"" Class"
575     .el .Sh "The \f(CWurxvt::term\fP Class"
576     .IX Subsection "The urxvt::term Class"
577 root 1.22 .ie n .IP "$term = new urxvt::term $envhashref\fR, \f(CW$rxvtname, [arg...]" 4
578     .el .IP "$term = new urxvt::term \f(CW$envhashref\fR, \f(CW$rxvtname\fR, [arg...]" 4
579     .IX Item "$term = new urxvt::term $envhashref, $rxvtname, [arg...]"
580     Creates a new terminal, very similar as if you had started it with system
581 root 1.23 \&\f(CW\*(C`$rxvtname, arg...\*(C'\fR. \f(CW$envhashref\fR must be a reference to a \f(CW%ENV\fR\-like
582     hash which defines the environment of the new terminal.
583     .Sp
584     Croaks (and probably outputs an error message) if the new instance
585 root 1.22 couldn't be created. Returns \f(CW\*(C`undef\*(C'\fR if the new instance didn't
586     initialise perl, and the terminal object otherwise. The \f(CW\*(C`init\*(C'\fR and
587     \&\f(CW\*(C`start\*(C'\fR hooks will be called during this call.
588 root 1.14 .IP "$term\->destroy" 4
589     .IX Item "$term->destroy"
590 root 1.21 Destroy the terminal object (close the window, free resources
591     etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
592     watchers (timers, io watchers) are still active.
593 root 1.15 .ie n .IP "$isset = $term\fR\->option ($optval[, \f(CW$set])" 4
594     .el .IP "$isset = \f(CW$term\fR\->option ($optval[, \f(CW$set\fR])" 4
595     .IX Item "$isset = $term->option ($optval[, $set])"
596     Returns true if the option specified by \f(CW$optval\fR is enabled, and
597     optionally change it. All option values are stored by name in the hash
598     \&\f(CW%urxvt::OPTION\fR. Options not enabled in this binary are not in the hash.
599     .Sp
600     Here is a a likely non-exhaustive list of option names, please see the
601     source file \fI/src/optinc.h\fR to see the actual list:
602     .Sp
603     .Vb 6
604     \& borderLess console cursorBlink cursorUnderline hold iconic insecure
605     \& intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
606     \& pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
607     \& scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
608     \& secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
609     \& tripleclickwords utmpInhibit visualBell
610     .Ve
611 root 1.2 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
612     .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
613     .IX Item "$value = $term->resource ($name[, $newval])"
614     Returns the current resource value associated with a given name and
615     optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
616     hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
617     .Sp
618     The new value must be properly encoded to a suitable character encoding
619     before passing it to this method. Similarly, the returned value may need
620     to be converted from the used encoding to text.
621     .Sp
622     Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
623     as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
624     likely change).
625     .Sp
626     Please note that resource strings will currently only be freed when the
627     terminal is destroyed, so changing options frequently will eat memory.
628     .Sp
629     Here is a a likely non-exhaustive list of resource names, not all of which
630 root 1.15 are supported in every build, please see the source file \fI/src/rsinc.h\fR
631     to see the actual list:
632 root 1.2 .Sp
633     .Vb 12
634     \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
635     \& borderLess color cursorBlink cursorUnderline cutchars delete_key
636     \& display_name embed ext_bwidth fade font geometry hold iconName
637     \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
638 root 1.4 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
639 root 1.12 \& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
640 root 1.3 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
641     \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
642     \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
643     \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
644     \& shade term_name title transparent transparent_all tripleclickwords
645     \& utmpInhibit visualBell
646 root 1.2 .Ve
647 root 1.19 .ie n .IP "$success = $term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string)" 4
648     .el .IP "$success = \f(CW$term\fR\->parse_keysym ($keysym_spec, \f(CW$command_string\fR)" 4
649     .IX Item "$success = $term->parse_keysym ($keysym_spec, $command_string)"
650     Adds a keymap translation exactly as specified via a resource. See the
651     \&\f(CW\*(C`keysym\*(C'\fR resource in the @@RXVT_NAME@@(1) manpage.
652 root 1.14 .ie n .IP "$rend = $term\->rstyle ([$new_rstyle])" 4
653     .el .IP "$rend = \f(CW$term\fR\->rstyle ([$new_rstyle])" 4
654     .IX Item "$rend = $term->rstyle ([$new_rstyle])"
655     Return and optionally change the current rendition. Text that is output by
656     the terminal application will use this style.
657 root 1.13 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col])" 4
658     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->screen_cur ([$row, \f(CW$col\fR])" 4
659     .IX Item "($row, $col) = $term->screen_cur ([$row, $col])"
660     Return the current coordinates of the text cursor position and optionally
661     set it (which is usually bad as applications don't expect that).
662 root 1.1 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
663     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
664     .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
665     .PD 0
666     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
667     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
668     .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
669     .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
670     .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
671     .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
672     .PD
673     Return the current values of the selection mark, begin or end positions,
674     and optionally set them to new values.
675     .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
676     .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
677     .IX Item "$success = $term->selection_grab ($eventtime)"
678     Try to request the primary selection from the server (for example, as set
679     by the next method).
680     .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
681     .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
682     .IX Item "$oldtext = $term->selection ([$newtext])"
683     Return the current selection text and optionally replace it by \f(CW$newtext\fR.
684 root 1.19 .ie n .IP "$term\->overlay_simple ($x, $y\fR, \f(CW$text)" 4
685     .el .IP "$term\->overlay_simple ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
686     .IX Item "$term->overlay_simple ($x, $y, $text)"
687     Create a simple multi-line overlay box. See the next method for details.
688 root 1.8 .ie n .IP "$term\->overlay ($x, $y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border]])" 4
689     .el .IP "$term\->overlay ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR[, \f(CW$rstyle\fR[, \f(CW$border\fR]])" 4
690     .IX Item "$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])"
691 root 1.1 Create a new (empty) overlay at the given position with the given
692 root 1.8 width/height. \f(CW$rstyle\fR defines the initial rendition style
693     (default: \f(CW\*(C`OVERLAY_RSTYLE\*(C'\fR).
694     .Sp
695     If \f(CW$border\fR is \f(CW2\fR (default), then a decorative border will be put
696     around the box.
697     .Sp
698     If either \f(CW$x\fR or \f(CW$y\fR is negative, then this is counted from the
699     right/bottom side, respectively.
700     .Sp
701     This method returns an urxvt::overlay object. The overlay will be visible
702     as long as the perl object is referenced.
703     .Sp
704 root 1.9 The methods currently supported on \f(CW\*(C`urxvt::overlay\*(C'\fR objects are:
705     .RS 4
706 root 1.8 .ie n .IP "$overlay\->set ($x, $y\fR, \f(CW$text\fR, \f(CW$rend)" 4
707     .el .IP "$overlay\->set ($x, \f(CW$y\fR, \f(CW$text\fR, \f(CW$rend\fR)" 4
708     .IX Item "$overlay->set ($x, $y, $text, $rend)"
709     Similar to \f(CW\*(C`$term\->ROW_t\*(C'\fR and \f(CW\*(C`$term\->ROW_r\*(C'\fR in that it puts
710     text in rxvt\-unicode's special encoding and an array of rendition values
711     at a specific position inside the overlay.
712 root 1.9 .IP "$overlay\->hide" 4
713     .IX Item "$overlay->hide"
714     If visible, hide the overlay, but do not destroy it.
715     .IP "$overlay\->show" 4
716     .IX Item "$overlay->show"
717     If hidden, display the overlay again.
718     .RE
719     .RS 4
720     .RE
721 root 1.15 .ie n .IP "$popup = $term\->popup ($event)" 4
722     .el .IP "$popup = \f(CW$term\fR\->popup ($event)" 4
723     .IX Item "$popup = $term->popup ($event)"
724     Creates a new \f(CW\*(C`urxvt::popup\*(C'\fR object that implements a popup menu. The
725     \&\f(CW$event\fR \fImust\fR be the event causing the menu to pop up (a button event,
726     currently).
727 root 1.14 .ie n .IP "$cellwidth = $term\->strwidth ($string)" 4
728     .el .IP "$cellwidth = \f(CW$term\fR\->strwidth ($string)" 4
729     .IX Item "$cellwidth = $term->strwidth ($string)"
730 root 1.3 Returns the number of screen-cells this string would need. Correctly
731     accounts for wide and combining characters.
732 root 1.14 .ie n .IP "$octets = $term\->locale_encode ($string)" 4
733     .el .IP "$octets = \f(CW$term\fR\->locale_encode ($string)" 4
734     .IX Item "$octets = $term->locale_encode ($string)"
735 root 1.3 Convert the given text string into the corresponding locale encoding.
736 root 1.14 .ie n .IP "$string = $term\->locale_decode ($octets)" 4
737     .el .IP "$string = \f(CW$term\fR\->locale_decode ($octets)" 4
738     .IX Item "$string = $term->locale_decode ($octets)"
739 root 1.3 Convert the given locale-encoded octets into a perl string.
740 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
741     .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
742     .IX Item "$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])"
743     XORs the rendition values in the given span with the provided value
744     (default: \f(CW\*(C`RS_RVid\*(C'\fR). Useful in refresh hooks to provide effects similar
745     to the selection.
746     .ie n .IP "$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$rstyle2]])" 4
747     .el .IP "$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
748     .IX Item "$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])"
749     Similar to \f(CW\*(C`scr_xor_span\*(C'\fR, but xors a rectangle instead. Trailing
750     whitespace will additionally be xored with the \f(CW$rstyle2\fR, which defaults
751     to \f(CW\*(C`RS_RVid | RS_Uline\*(C'\fR, which removes reverse video again and underlines
752     it instead.
753     .IP "$term\->scr_bell" 4
754     .IX Item "$term->scr_bell"
755     Ring the bell!
756 root 1.14 .IP "$term\->scr_add_lines ($string)" 4
757     .IX Item "$term->scr_add_lines ($string)"
758     Write the given text string to the screen, as if output by the application
759     running inside the terminal. It may not contain command sequences (escape
760     codes), but is free to use line feeds, carriage returns and tabs. The
761     string is a normal text string, not in locale-dependent encoding.
762     .Sp
763     Normally its not a good idea to use this function, as programs might be
764     confused by changes in cursor position or scrolling. Its useful inside a
765     \&\f(CW\*(C`on_add_lines\*(C'\fR hook, though.
766     .IP "$term\->cmd_parse ($octets)" 4
767     .IX Item "$term->cmd_parse ($octets)"
768     Similar to \f(CW\*(C`scr_add_lines\*(C'\fR, but the argument must be in the
769     locale-specific encoding of the terminal and can contain command sequences
770     (escape codes) that will be interpreted.
771 root 1.3 .IP "$term\->tt_write ($octets)" 4
772     .IX Item "$term->tt_write ($octets)"
773     Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
774 root 1.6 pass characters instead of octets, you should convert your strings first
775     to the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
776 root 1.19 .ie n .IP "$old_events = $term\->pty_ev_events ([$new_events])" 4
777     .el .IP "$old_events = \f(CW$term\fR\->pty_ev_events ([$new_events])" 4
778     .IX Item "$old_events = $term->pty_ev_events ([$new_events])"
779     Replaces the event mask of the pty watcher by the given event mask. Can
780     be used to suppress input and output handling to the pty/tty. See the
781     description of \f(CW\*(C`urxvt::timer\->events\*(C'\fR. Make sure to always restore
782     the previous value.
783 root 1.14 .ie n .IP "$windowid = $term\->parent" 4
784     .el .IP "$windowid = \f(CW$term\fR\->parent" 4
785     .IX Item "$windowid = $term->parent"
786     Return the window id of the toplevel window.
787     .ie n .IP "$windowid = $term\->vt" 4
788     .el .IP "$windowid = \f(CW$term\fR\->vt" 4
789     .IX Item "$windowid = $term->vt"
790     Return the window id of the terminal window.
791 root 1.13 .ie n .IP "$window_width = $term\->width" 4
792     .el .IP "$window_width = \f(CW$term\fR\->width" 4
793     .IX Item "$window_width = $term->width"
794 root 1.6 .PD 0
795 root 1.13 .ie n .IP "$window_height = $term\->height" 4
796     .el .IP "$window_height = \f(CW$term\fR\->height" 4
797     .IX Item "$window_height = $term->height"
798     .ie n .IP "$font_width = $term\->fwidth" 4
799     .el .IP "$font_width = \f(CW$term\fR\->fwidth" 4
800     .IX Item "$font_width = $term->fwidth"
801     .ie n .IP "$font_height = $term\->fheight" 4
802     .el .IP "$font_height = \f(CW$term\fR\->fheight" 4
803     .IX Item "$font_height = $term->fheight"
804     .ie n .IP "$font_ascent = $term\->fbase" 4
805     .el .IP "$font_ascent = \f(CW$term\fR\->fbase" 4
806     .IX Item "$font_ascent = $term->fbase"
807     .ie n .IP "$terminal_rows = $term\->nrow" 4
808     .el .IP "$terminal_rows = \f(CW$term\fR\->nrow" 4
809     .IX Item "$terminal_rows = $term->nrow"
810     .ie n .IP "$terminal_columns = $term\->ncol" 4
811     .el .IP "$terminal_columns = \f(CW$term\fR\->ncol" 4
812     .IX Item "$terminal_columns = $term->ncol"
813     .ie n .IP "$has_focus = $term\->focus" 4
814     .el .IP "$has_focus = \f(CW$term\fR\->focus" 4
815     .IX Item "$has_focus = $term->focus"
816     .ie n .IP "$is_mapped = $term\->mapped" 4
817     .el .IP "$is_mapped = \f(CW$term\fR\->mapped" 4
818     .IX Item "$is_mapped = $term->mapped"
819     .ie n .IP "$max_scrollback = $term\->saveLines" 4
820     .el .IP "$max_scrollback = \f(CW$term\fR\->saveLines" 4
821     .IX Item "$max_scrollback = $term->saveLines"
822     .ie n .IP "$nrow_plus_saveLines = $term\->total_rows" 4
823     .el .IP "$nrow_plus_saveLines = \f(CW$term\fR\->total_rows" 4
824     .IX Item "$nrow_plus_saveLines = $term->total_rows"
825     .ie n .IP "$lines_in_scrollback = $term\->nsaved" 4
826     .el .IP "$lines_in_scrollback = \f(CW$term\fR\->nsaved" 4
827     .IX Item "$lines_in_scrollback = $term->nsaved"
828 root 1.6 .PD
829 root 1.13 Return various integers describing terminal characteristics.
830 root 1.22 .ie n .IP "$x_display = $term\->display_id" 4
831     .el .IP "$x_display = \f(CW$term\fR\->display_id" 4
832     .IX Item "$x_display = $term->display_id"
833     Return the \s-1DISPLAY\s0 used by rxvt\-unicode.
834 root 1.19 .ie n .IP "$lc_ctype = $term\->locale" 4
835     .el .IP "$lc_ctype = \f(CW$term\fR\->locale" 4
836     .IX Item "$lc_ctype = $term->locale"
837     Returns the \s-1LC_CTYPE\s0 category string used by this rxvt\-unicode.
838 root 1.22 .ie n .IP "$env = $term\->env" 4
839     .el .IP "$env = \f(CW$term\fR\->env" 4
840     .IX Item "$env = $term->env"
841     Returns a copy of the environment in effect for the terminal as a hashref
842     similar to \f(CW\*(C`\e%ENV\*(C'\fR.
843 root 1.15 .ie n .IP "$modifiermask = $term\->ModLevel3Mask" 4
844     .el .IP "$modifiermask = \f(CW$term\fR\->ModLevel3Mask" 4
845     .IX Item "$modifiermask = $term->ModLevel3Mask"
846     .PD 0
847     .ie n .IP "$modifiermask = $term\->ModMetaMask" 4
848     .el .IP "$modifiermask = \f(CW$term\fR\->ModMetaMask" 4
849     .IX Item "$modifiermask = $term->ModMetaMask"
850     .ie n .IP "$modifiermask = $term\->ModNumLockMask" 4
851     .el .IP "$modifiermask = \f(CW$term\fR\->ModNumLockMask" 4
852     .IX Item "$modifiermask = $term->ModNumLockMask"
853     .PD
854     Return the modifier masks corresponding to the \*(L"\s-1ISO\s0 Level 3 Shift\*(R" (often
855     AltGr), the meta key (often Alt) and the num lock key, if applicable.
856 root 1.6 .ie n .IP "$view_start = $term\->view_start ([$newvalue])" 4
857     .el .IP "$view_start = \f(CW$term\fR\->view_start ([$newvalue])" 4
858     .IX Item "$view_start = $term->view_start ([$newvalue])"
859     Returns the negative row number of the topmost line. Minimum value is
860     \&\f(CW0\fR, which displays the normal terminal contents. Larger values scroll
861     this many lines into the scrollback buffer.
862     .IP "$term\->want_refresh" 4
863     .IX Item "$term->want_refresh"
864     Requests a screen refresh. At the next opportunity, rxvt-unicode will
865     compare the on-screen display with its stored representation. If they
866     differ, it redraws the differences.
867     .Sp
868     Used after changing terminal contents to display them.
869     .ie n .IP "$text = $term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col]])" 4
870     .el .IP "$text = \f(CW$term\fR\->ROW_t ($row_number[, \f(CW$new_text\fR[, \f(CW$start_col\fR]])" 4
871     .IX Item "$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])"
872     Returns the text of the entire row with number \f(CW$row_number\fR. Row \f(CW0\fR
873     is the topmost terminal line, row \f(CW\*(C`$term\->$ncol\-1\*(C'\fR is the bottommost
874     terminal line. The scrollback buffer starts at line \f(CW\*(C`\-1\*(C'\fR and extends to
875 root 1.9 line \f(CW\*(C`\-$term\->nsaved\*(C'\fR. Nothing will be returned if a nonexistent line
876     is requested.
877 root 1.6 .Sp
878     If \f(CW$new_text\fR is specified, it will replace characters in the current
879     line, starting at column \f(CW$start_col\fR (default \f(CW0\fR), which is useful
880 root 1.8 to replace only parts of a line. The font index in the rendition will
881 root 1.6 automatically be updated.
882     .Sp
883     \&\f(CW$text\fR is in a special encoding: tabs and wide characters that use more
884     than one cell when displayed are padded with urxvt::NOCHAR characters
885     (\f(CW\*(C`chr 65535\*(C'\fR). Characters with combining characters and other characters
886     that do not fit into the normal tetx encoding will be replaced with
887     characters in the private use area.
888     .Sp
889     You have to obey this encoding when changing text. The advantage is
890     that \f(CW\*(C`substr\*(C'\fR and similar functions work on screen cells and not on
891     characters.
892     .Sp
893     The methods \f(CW\*(C`$term\->special_encode\*(C'\fR and \f(CW\*(C`$term\->special_decode\*(C'\fR
894     can be used to convert normal strings into this encoding and vice versa.
895     .ie n .IP "$rend = $term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col]])" 4
896     .el .IP "$rend = \f(CW$term\fR\->ROW_r ($row_number[, \f(CW$new_rend\fR[, \f(CW$start_col\fR]])" 4
897     .IX Item "$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])"
898     Like \f(CW\*(C`$term\->ROW_t\*(C'\fR, but returns an arrayref with rendition
899     bitsets. Rendition bitsets contain information about colour, font, font
900     styles and similar information. See also \f(CW\*(C`$term\->ROW_t\*(C'\fR.
901     .Sp
902     When setting rendition, the font mask will be ignored.
903     .Sp
904 root 1.8 See the section on \s-1RENDITION\s0, above.
905 root 1.6 .ie n .IP "$length = $term\fR\->ROW_l ($row_number[, \f(CW$new_length])" 4
906     .el .IP "$length = \f(CW$term\fR\->ROW_l ($row_number[, \f(CW$new_length\fR])" 4
907     .IX Item "$length = $term->ROW_l ($row_number[, $new_length])"
908 root 1.9 Returns the number of screen cells that are in use (\*(L"the line
909     length\*(R"). Unlike the urxvt core, this returns \f(CW\*(C`$term\->ncol\*(C'\fR if the
910     line is joined with the following one.
911     .ie n .IP "$bool = $term\->is_longer ($row_number)" 4
912     .el .IP "$bool = \f(CW$term\fR\->is_longer ($row_number)" 4
913     .IX Item "$bool = $term->is_longer ($row_number)"
914     Returns true if the row is part of a multiple-row logical \*(L"line\*(R" (i.e.
915     joined with the following row), which means all characters are in use
916     and it is continued on the next row (and possibly a continuation of the
917     previous row(s)).
918     .ie n .IP "$line = $term\->line ($row_number)" 4
919     .el .IP "$line = \f(CW$term\fR\->line ($row_number)" 4
920     .IX Item "$line = $term->line ($row_number)"
921     Create and return a new \f(CW\*(C`urxvt::line\*(C'\fR object that stores information
922     about the logical line that row \f(CW$row_number\fR is part of. It supports the
923     following methods:
924     .RS 4
925 root 1.14 .ie n .IP "$text = $line\->t ([$new_text])" 4
926     .el .IP "$text = \f(CW$line\fR\->t ([$new_text])" 4
927     .IX Item "$text = $line->t ([$new_text])"
928     Returns or replaces the full text of the line, similar to \f(CW\*(C`ROW_t\*(C'\fR
929     .ie n .IP "$rend = $line\->r ([$new_rend])" 4
930     .el .IP "$rend = \f(CW$line\fR\->r ([$new_rend])" 4
931     .IX Item "$rend = $line->r ([$new_rend])"
932     Returns or replaces the full rendition array of the line, similar to \f(CW\*(C`ROW_r\*(C'\fR
933 root 1.9 .ie n .IP "$length = $line\->l" 4
934     .el .IP "$length = \f(CW$line\fR\->l" 4
935     .IX Item "$length = $line->l"
936     Returns the length of the line in cells, similar to \f(CW\*(C`ROW_l\*(C'\fR.
937     .ie n .IP "$rownum = $line\->beg" 4
938     .el .IP "$rownum = \f(CW$line\fR\->beg" 4
939     .IX Item "$rownum = $line->beg"
940     .PD 0
941     .ie n .IP "$rownum = $line\->end" 4
942     .el .IP "$rownum = \f(CW$line\fR\->end" 4
943     .IX Item "$rownum = $line->end"
944     .PD
945     Return the row number of the first/last row of the line, respectively.
946     .ie n .IP "$offset = $line\fR\->offset_of ($row, \f(CW$col)" 4
947     .el .IP "$offset = \f(CW$line\fR\->offset_of ($row, \f(CW$col\fR)" 4
948     .IX Item "$offset = $line->offset_of ($row, $col)"
949     Returns the character offset of the given row|col pair within the logical
950     line.
951     .ie n .IP "($row, $col\fR) = \f(CW$line\->coord_of ($offset)" 4
952     .el .IP "($row, \f(CW$col\fR) = \f(CW$line\fR\->coord_of ($offset)" 4
953     .IX Item "($row, $col) = $line->coord_of ($offset)"
954     Translates a string offset into terminal coordinates again.
955     .RE
956     .RS 4
957     .RE
958 root 1.17 .ie n .IP "$text = $term\fR\->special_encode \f(CW$string" 4
959     .el .IP "$text = \f(CW$term\fR\->special_encode \f(CW$string\fR" 4
960     .IX Item "$text = $term->special_encode $string"
961 root 1.6 Converts a perl string into the special encoding used by rxvt\-unicode,
962     where one character corresponds to one screen cell. See
963     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
964     .ie n .IP "$string = $term\fR\->special_decode \f(CW$text" 4
965     .el .IP "$string = \f(CW$term\fR\->special_decode \f(CW$text\fR" 4
966     .IX Item "$string = $term->special_decode $text"
967     Converts rxvt-unicodes text reprsentation into a perl string. See
968     \&\f(CW\*(C`$term\->ROW_t\*(C'\fR for details.
969 root 1.17 .ie n .IP "$success = $term\fR\->grab_button ($button, \f(CW$modifiermask)" 4
970     .el .IP "$success = \f(CW$term\fR\->grab_button ($button, \f(CW$modifiermask\fR)" 4
971     .IX Item "$success = $term->grab_button ($button, $modifiermask)"
972 root 1.18 Registers a synchronous button grab. See the XGrabButton manpage.
973 root 1.17 .ie n .IP "$success = $term\fR\->grab ($eventtime[, \f(CW$sync])" 4
974     .el .IP "$success = \f(CW$term\fR\->grab ($eventtime[, \f(CW$sync\fR])" 4
975     .IX Item "$success = $term->grab ($eventtime[, $sync])"
976     Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
977     synchronous (\f(CW$sync\fR is true). Also remembers the grab timestampe.
978     .IP "$term\->allow_events_async" 4
979     .IX Item "$term->allow_events_async"
980     Calls XAllowEvents with AsyncBoth for the most recent grab.
981     .IP "$term\->allow_events_sync" 4
982     .IX Item "$term->allow_events_sync"
983     Calls XAllowEvents with SyncBoth for the most recent grab.
984     .IP "$term\->allow_events_replay" 4
985     .IX Item "$term->allow_events_replay"
986     Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
987     recent grab.
988     .IP "$term\->ungrab" 4
989     .IX Item "$term->ungrab"
990     Calls XUngrab for the most recent grab. Is called automatically on
991     evaluation errors, as it is better to lose the grab in the error case as
992     the session.
993 root 1.15 .ie n .Sh "The ""urxvt::popup"" Class"
994     .el .Sh "The \f(CWurxvt::popup\fP Class"
995     .IX Subsection "The urxvt::popup Class"
996 root 1.21 .IP "$popup\->add_title ($title)" 4
997     .IX Item "$popup->add_title ($title)"
998     Adds a non-clickable title to the popup.
999     .IP "$popup\->add_separator ([$sepchr])" 4
1000     .IX Item "$popup->add_separator ([$sepchr])"
1001     Creates a separator, optionally using the character given as \f(CW$sepchr\fR.
1002     .ie n .IP "$popup\->add_button ($text, $cb)" 4
1003     .el .IP "$popup\->add_button ($text, \f(CW$cb\fR)" 4
1004     .IX Item "$popup->add_button ($text, $cb)"
1005     Adds a clickable button to the popup. \f(CW$cb\fR is called whenever it is
1006     selected.
1007     .ie n .IP "$popup\->add_toggle ($text, $cb\fR, \f(CW$initial_value)" 4
1008     .el .IP "$popup\->add_toggle ($text, \f(CW$cb\fR, \f(CW$initial_value\fR)" 4
1009     .IX Item "$popup->add_toggle ($text, $cb, $initial_value)"
1010     Adds a toggle/checkbox item to the popup. Teh callback gets called
1011     whenever it gets toggled, with a boolean indicating its value as its first
1012     argument.
1013     .IP "$popup\->show" 4
1014     .IX Item "$popup->show"
1015     Displays the popup (which is initially hidden).
1016 root 1.1 .ie n .Sh "The ""urxvt::timer"" Class"
1017     .el .Sh "The \f(CWurxvt::timer\fP Class"
1018     .IX Subsection "The urxvt::timer Class"
1019     This class implements timer watchers/events. Time is represented as a
1020     fractional number of seconds since the epoch. Example:
1021 root 1.23 .PP
1022 root 1.8 .Vb 8
1023     \& $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1024 root 1.1 \& $term->{timer} = urxvt::timer
1025     \& ->new
1026 root 1.8 \& ->interval (1)
1027 root 1.1 \& ->cb (sub {
1028 root 1.8 \& $term->{overlay}->set (0, 0,
1029     \& sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1030 root 1.1 \& });
1031     .Ve
1032     .IP "$timer = new urxvt::timer" 4
1033     .IX Item "$timer = new urxvt::timer"
1034 root 1.8 Create a new timer object in started state. It is scheduled to fire
1035     immediately.
1036 root 1.1 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
1037     .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
1038     .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
1039     Set the callback to be called when the timer triggers.
1040     .ie n .IP "$tstamp = $timer\->at" 4
1041     .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
1042     .IX Item "$tstamp = $timer->at"
1043     Return the time this watcher will fire next.
1044     .ie n .IP "$timer = $timer\->set ($tstamp)" 4
1045     .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
1046     .IX Item "$timer = $timer->set ($tstamp)"
1047     Set the time the event is generated to \f(CW$tstamp\fR.
1048 root 1.8 .ie n .IP "$timer = $timer\->interval ($interval)" 4
1049     .el .IP "$timer = \f(CW$timer\fR\->interval ($interval)" 4
1050     .IX Item "$timer = $timer->interval ($interval)"
1051     Normally (and when \f(CW$interval\fR is \f(CW0\fR), the timer will automatically
1052     stop after it has fired once. If \f(CW$interval\fR is non\-zero, then the timer
1053     is automatically rescheduled at the given intervals.
1054 root 1.1 .ie n .IP "$timer = $timer\->start" 4
1055     .el .IP "$timer = \f(CW$timer\fR\->start" 4
1056     .IX Item "$timer = $timer->start"
1057     Start the timer.
1058     .ie n .IP "$timer = $timer\->start ($tstamp)" 4
1059     .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
1060     .IX Item "$timer = $timer->start ($tstamp)"
1061     Set the event trigger time to \f(CW$tstamp\fR and start the timer.
1062     .ie n .IP "$timer = $timer\->stop" 4
1063     .el .IP "$timer = \f(CW$timer\fR\->stop" 4
1064     .IX Item "$timer = $timer->stop"
1065     Stop the timer.
1066     .ie n .Sh "The ""urxvt::iow"" Class"
1067     .el .Sh "The \f(CWurxvt::iow\fP Class"
1068     .IX Subsection "The urxvt::iow Class"
1069     This class implements io watchers/events. Example:
1070 root 1.23 .PP
1071 root 1.1 .Vb 12
1072     \& $term->{socket} = ...
1073     \& $term->{iow} = urxvt::iow
1074     \& ->new
1075     \& ->fd (fileno $term->{socket})
1076 root 1.19 \& ->events (urxvt::EVENT_READ)
1077 root 1.1 \& ->start
1078     \& ->cb (sub {
1079     \& my ($iow, $revents) = @_;
1080     \& # $revents must be 1 here, no need to check
1081     \& sysread $term->{socket}, my $buf, 8192
1082     \& or end-of-file;
1083     \& });
1084     .Ve
1085     .IP "$iow = new urxvt::iow" 4
1086     .IX Item "$iow = new urxvt::iow"
1087     Create a new io watcher object in stopped state.
1088     .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
1089     .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
1090     .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
1091     Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
1092     is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
1093     .ie n .IP "$iow = $iow\->fd ($fd)" 4
1094     .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
1095     .IX Item "$iow = $iow->fd ($fd)"
1096     Set the filedescriptor (not handle) to watch.
1097     .ie n .IP "$iow = $iow\->events ($eventmask)" 4
1098     .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
1099     .IX Item "$iow = $iow->events ($eventmask)"
1100 root 1.19 Set the event mask to watch. The only allowed values are
1101     \&\f(CW\*(C`urxvt::EVENT_READ\*(C'\fR and \f(CW\*(C`urxvt::EVENT_WRITE\*(C'\fR, which might be ORed
1102     together, or \f(CW\*(C`urxvt::EVENT_NONE\*(C'\fR.
1103 root 1.1 .ie n .IP "$iow = $iow\->start" 4
1104     .el .IP "$iow = \f(CW$iow\fR\->start" 4
1105     .IX Item "$iow = $iow->start"
1106     Start watching for requested events on the given handle.
1107     .ie n .IP "$iow = $iow\->stop" 4
1108     .el .IP "$iow = \f(CW$iow\fR\->stop" 4
1109     .IX Item "$iow = $iow->stop"
1110     Stop watching for events on the given filehandle.
1111 root 1.2 .SH "ENVIRONMENT"
1112     .IX Header "ENVIRONMENT"
1113     .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
1114     .IX Subsection "URXVT_PERL_VERBOSITY"
1115     This variable controls the verbosity level of the perl extension. Higher
1116     numbers indicate more verbose output.
1117 root 1.17 .IP "== 0 \- fatal messages" 4
1118     .IX Item "== 0 - fatal messages"
1119 root 1.2 .PD 0
1120 root 1.17 .IP ">= 3 \- script loading and management" 4
1121     .IX Item ">= 3 - script loading and management"
1122     .IP ">=10 \- all events received" 4
1123     .IX Item ">=10 - all events received"
1124 root 1.2 .PD
1125 root 1.1 .SH "AUTHOR"
1126     .IX Header "AUTHOR"
1127     .Vb 2
1128     \& Marc Lehmann <pcg@goof.com>
1129     \& http://software.schmorp.de/pkg/rxvt-unicode
1130     .Ve