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1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <title>rxvtperl - rxvt-unicode's embedded perl interpreter</title>
5 <link rev="made" href="mailto:perl-binary@plan9.de" />
6 </head>
7
8 <body style="background-color: white">
9
10 <p><a name="__index__"></a></p>
11 <!-- INDEX BEGIN -->
12
13 <ul>
14
15 <li><a href="#name">NAME</a></li>
16 <li><a href="#synopsis">SYNOPSIS</a></li>
17 <li><a href="#description">DESCRIPTION</a></li>
18 <li><a href="#prepackaged_extensions">PREPACKAGED EXTENSIONS</a></li>
19 <li><a href="#api_documentation">API DOCUMENTATION</a></li>
20 <ul>
21
22 <li><a href="#general_api_considerations">General API Considerations</a></li>
23 <li><a href="#extension_objects">Extension Objects</a></li>
24 <li><a href="#hooks">Hooks</a></li>
25 <li><a href="#variables_in_the_urxvt_package">Variables in the <code>urxvt</code> Package</a></li>
26 <li><a href="#functions_in_the_urxvt_package">Functions in the <code>urxvt</code> Package</a></li>
27 <li><a href="#rendition">RENDITION</a></li>
28 <li><a href="#the_urxvt__anyevent_class">The <code>urxvt::anyevent</code> Class</a></li>
29 <li><a href="#the_urxvt__term_class">The <code>urxvt::term</code> Class</a></li>
30 <li><a href="#the_urxvt__popup_class">The <code>urxvt::popup</code> Class</a></li>
31 <li><a href="#the_urxvt__timer_class">The <code>urxvt::timer</code> Class</a></li>
32 <li><a href="#the_urxvt__iow_class">The <code>urxvt::iow</code> Class</a></li>
33 </ul>
34
35 <li><a href="#environment">ENVIRONMENT</a></li>
36 <ul>
37
38 <li><a href="#urxvt_perl_verbosity">URXVT_PERL_VERBOSITY</a></li>
39 </ul>
40
41 <li><a href="#author">AUTHOR</a></li>
42 </ul>
43 <!-- INDEX END -->
44
45 <hr />
46 <p>
47 </p>
48 <hr />
49 <h1><a name="name">NAME</a></h1>
50 <p>rxvtperl - rxvt-unicode's embedded perl interpreter</p>
51 <p>
52 </p>
53 <hr />
54 <h1><a name="synopsis">SYNOPSIS</a></h1>
55 <pre>
56 # create a file grab_test in $HOME:</pre>
57 <pre>
58 sub on_sel_grab {
59 warn &quot;you selected &quot;, $_[0]-&gt;selection;
60 ()
61 }</pre>
62 <pre>
63 # start a rxvt using it:</pre>
64 <pre>
65 rxvt --perl-lib $HOME -pe grab_test</pre>
66 <p>
67 </p>
68 <hr />
69 <h1><a name="description">DESCRIPTION</a></h1>
70 <p>Everytime a terminal object gets created, extension scripts specified via
71 the <code>perl</code> resource are loaded and associated with it.</p>
72 <p>Scripts are compiled in a 'use strict' and 'use utf8' environment, and
73 thus must be encoded as UTF-8.</p>
74 <p>Each script will only ever be loaded once, even in rxvtd, where
75 scripts will be shared (but not enabled) for all terminals.</p>
76 <p>
77 </p>
78 <hr />
79 <h1><a name="prepackaged_extensions">PREPACKAGED EXTENSIONS</a></h1>
80 <p>This section describes the extensions delivered with this release. You can
81 find them in <em>/opt/rxvt/lib/urxvt/perl/</em>.</p>
82 <p>You can activate them like this:</p>
83 <pre>
84 rxvt -pe &lt;extensionname&gt;</pre>
85 <dl>
86 <dt><strong><a name="item_selection">selection (enabled by default)</a></strong><br />
87 </dt>
88 <dd>
89 (More) intelligent selection. This extension tries to be more intelligent
90 when the user extends selections (double-click). Right now, it tries to
91 select urls and complete shell-quoted arguments, which is very convenient,
92 too, if your <em>ls</em> supports <code>--quoting-style=shell</code>.
93 </dd>
94 <dd>
95 <p>It also offers the following bindable keyboard command:</p>
96 </dd>
97 <dl>
98 <dt><strong><a name="item_rot13">rot13</a></strong><br />
99 </dt>
100 <dd>
101 Rot-13 the selection when activated. Used via keyboard trigger:
102 </dd>
103 <dd>
104 <pre>
105 URxvt.keysym.C-M-r: perl:selection:rot13</pre>
106 </dd>
107 <p></p></dl>
108 <dt><strong><a name="item_popup">option-popup (enabled by default)</a></strong><br />
109 </dt>
110 <dd>
111 Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
112 runtime.
113 </dd>
114 <p></p>
115 <dt><strong>selection-popup (enabled by default)</strong><br />
116 </dt>
117 <dd>
118 Binds a popup menu to Ctrl-Button3 that lets you convert the selection
119 text into various other formats/action (such as uri unescaping, perl
120 evalution, web-browser starting etc.), depending on content.
121 </dd>
122 <p></p>
123 <dt><strong><a name="item_searchable_2dscrollback_3chotkey_3e__28enabled_by_">searchable-scrollback&lt;hotkey&gt; (enabled by default)</a></strong><br />
124 </dt>
125 <dd>
126 Adds regex search functionality to the scrollback buffer, triggered
127 by a hotkey (default: <code>M-s</code>). When in search mode, normal terminal
128 input/output is suspended.
129 </dd>
130 <dd>
131 <p><code>/</code> starts an incremental regex search, <code>n</code> searches further, <code>p</code> or
132 <code>N</code> jump to the previous match, <code>G</code> jumps to the bottom and clears the
133 history, <code>enter</code> leaves search mode at the current position and <code>escape</code>
134 returns to the original position.</p>
135 </dd>
136 <p></p>
137 <dt><strong><a name="item_digital_2dclock">digital-clock</a></strong><br />
138 </dt>
139 <dd>
140 Displays a digital clock using the built-in overlay.
141 </dd>
142 <p></p>
143 <dt><strong><a name="item_mark_2durls">mark-urls</a></strong><br />
144 </dt>
145 <dd>
146 Uses per-line display filtering (<code>on_line_update</code>) to underline urls.
147 </dd>
148 <p></p>
149 <dt><strong><a name="item_block_2dgraphics_2dto_2dascii">block-graphics-to-ascii</a></strong><br />
150 </dt>
151 <dd>
152 A not very useful example of filtering all text output to the terminal,
153 by replacing all line-drawing characters (U+2500 .. U+259F) by a
154 similar-looking ascii character.
155 </dd>
156 <p></p>
157 <dt><strong><a name="item_example_2drefresh_2dhooks">example-refresh-hooks</a></strong><br />
158 </dt>
159 <dd>
160 Displays a very simple digital clock in the upper right corner of the
161 window. Illustrates overwriting the refresh callbacks to create your own
162 overlays or changes.
163 </dd>
164 <p></p></dl>
165 <p>
166 </p>
167 <hr />
168 <h1><a name="api_documentation">API DOCUMENTATION</a></h1>
169 <p>
170 </p>
171 <h2><a name="general_api_considerations">General API Considerations</a></h2>
172 <p>All objects (such as terminals, time watchers etc.) are typical
173 reference-to-hash objects. The hash can be used to store anything you
174 like. All members starting with an underscore (such as <code>_ptr</code> or
175 <code>_hook</code>) are reserved for internal uses and <strong>MUST NOT</strong> be accessed or
176 modified).</p>
177 <p>When objects are destroyed on the C++ side, the perl object hashes are
178 emptied, so its best to store related objects such as time watchers and
179 the like inside the terminal object so they get destroyed as soon as the
180 terminal is destroyed.</p>
181 <p>Argument names also often indicate the type of a parameter. Here are some
182 hints on what they mean:</p>
183 <dl>
184 <dt><strong><a name="item__24text">$text</a></strong><br />
185 </dt>
186 <dd>
187 Rxvt-unicodes special way of encoding text, where one ``unicode'' character
188 always represents one screen cell. See <a href="#item_row_t">ROW_t</a> for a discussion of this format.
189 </dd>
190 <p></p>
191 <dt><strong><a name="item__24string">$string</a></strong><br />
192 </dt>
193 <dd>
194 A perl text string, with an emphasis on <em>text</em>. It can store all unicode
195 characters and is to be distinguished with text encoded in a specific
196 encoding (often locale-specific) and binary data.
197 </dd>
198 <p></p>
199 <dt><strong><a name="item__24octets">$octets</a></strong><br />
200 </dt>
201 <dd>
202 Either binary data or - more common - a text string encoded in a
203 locale-specific way.
204 </dd>
205 <p></p></dl>
206 <p>
207 </p>
208 <h2><a name="extension_objects">Extension Objects</a></h2>
209 <p>Very perl extension is a perl class. A separate perl object is created
210 for each terminal and each extension and passed as the first parameter to
211 hooks. So extensions can use their <code>$self</code> object without having to think
212 about other extensions, with the exception of methods and members that
213 begin with an underscore character <code>_</code>: these are reserved for internal
214 use.</p>
215 <p>Although it isn't a <code>urxvt::term</code> object, you can call all methods of the
216 <code>urxvt::term</code> class on this object.</p>
217 <p>It has the following methods and data members:</p>
218 <dl>
219 <dt><strong><a name="item__24urxvt_term__3d__24self_2d_3e_7bterm_7d">$urxvt_term = $self-&gt;{term}</a></strong><br />
220 </dt>
221 <dd>
222 Returns the <code>urxvt::term</code> object associated with this instance of the
223 extension. This member <em>must not</em> be changed in any way.
224 </dd>
225 <p></p>
226 <dt><strong><a name="item_enable">$self-&gt;enable ($hook_name =&gt; $cb, [$hook_name =&gt; $cb..])</a></strong><br />
227 </dt>
228 <dd>
229 Dynamically enable the given hooks (named without the <code>on_</code> prefix) for
230 this extension, replacing any previous hook. This is useful when you want
231 to overwrite time-critical hooks only temporarily.
232 </dd>
233 <p></p>
234 <dt><strong><a name="item_disable">$self-&gt;disable ($hook_name[, $hook_name..])</a></strong><br />
235 </dt>
236 <dd>
237 Dynamically disable the given hooks.
238 </dd>
239 <p></p></dl>
240 <p>
241 </p>
242 <h2><a name="hooks">Hooks</a></h2>
243 <p>The following subroutines can be declared in extension files, and will be
244 called whenever the relevant event happens.</p>
245 <p>The first argument passed to them is an extension oject as described in
246 the in the <code>Extension Objects</code> section.</p>
247 <p><strong>All</strong> of these hooks must return a boolean value. If it is true, then the
248 event counts as being <em>consumed</em>, and the invocation of other hooks is
249 skipped, and the relevant action might not be carried out by the C++ code.</p>
250 <p><em>When in doubt, return a false value (preferably <code>()</code>). </em>&gt;</p>
251 <dl>
252 <dt><strong><a name="item_on_init__24term">on_init $term</a></strong><br />
253 </dt>
254 <dd>
255 Called after a new terminal object has been initialized, but before
256 windows are created or the command gets run. Most methods are unsafe to
257 call or deliver senseless data, as terminal size and other characteristics
258 have not yet been determined. You can safely query and change resources,
259 though.
260 </dd>
261 <p></p>
262 <dt><strong><a name="item_on_reset__24term">on_reset $term</a></strong><br />
263 </dt>
264 <dd>
265 Called after the screen is ``reset'' for any reason, such as resizing or
266 control sequences. Here is where you can react on changes to size-related
267 variables.
268 </dd>
269 <p></p>
270 <dt><strong><a name="item_on_start__24term">on_start $term</a></strong><br />
271 </dt>
272 <dd>
273 Called at the very end of initialisation of a new terminal, just before
274 returning to the mainloop.
275 </dd>
276 <p></p>
277 <dt><strong><a name="item_on_sel_make__24term_2c__24eventtime">on_sel_make $term, $eventtime</a></strong><br />
278 </dt>
279 <dd>
280 Called whenever a selection has been made by the user, but before the
281 selection text is copied, so changes to the beginning, end or type of the
282 selection will be honored.
283 </dd>
284 <dd>
285 <p>Returning a true value aborts selection making by urxvt, in which case you
286 have to make a selection yourself by calling <a href="#item_selection_grab"><code>$term-&gt;selection_grab</code></a>.</p>
287 </dd>
288 <p></p>
289 <dt><strong><a name="item_on_sel_grab__24term_2c__24eventtime">on_sel_grab $term, $eventtime</a></strong><br />
290 </dt>
291 <dd>
292 Called whenever a selection has been copied, but before the selection is
293 requested from the server. The selection text can be queried and changed
294 by calling <a href="#item_selection"><code>$term-&gt;selection</code></a>.
295 </dd>
296 <dd>
297 <p>Returning a true value aborts selection grabbing. It will still be hilighted.</p>
298 </dd>
299 <p></p>
300 <dt><strong><a name="item_on_sel_extend__24term">on_sel_extend $term</a></strong><br />
301 </dt>
302 <dd>
303 Called whenever the user tries to extend the selection (e.g. with a double
304 click) and is either supposed to return false (normal operation), or
305 should extend the selection itelf and return true to suppress the built-in
306 processing.
307 </dd>
308 <dd>
309 <p>See the <em>selection</em> example extension.</p>
310 </dd>
311 <p></p>
312 <dt><strong><a name="item_on_view_change__24term_2c__24offset">on_view_change $term, $offset</a></strong><br />
313 </dt>
314 <dd>
315 Called whenever the view offset changes, i..e the user or program
316 scrolls. Offset <code>0</code> means display the normal terminal, positive values
317 show this many lines of scrollback.
318 </dd>
319 <p></p>
320 <dt><strong><a name="item_on_scroll_back__24term_2c__24lines_2c__24saved">on_scroll_back $term, $lines, $saved</a></strong><br />
321 </dt>
322 <dd>
323 Called whenever lines scroll out of the terminal area into the scrollback
324 buffer. <code>$lines</code> is the number of lines scrolled out and may be larger
325 than the scroll back buffer or the terminal.
326 </dd>
327 <dd>
328 <p>It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
329 $nrow - 1) represent the lines to be scrolled out). <code>$saved</code> is the total
330 number of lines that will be in the scrollback buffer.</p>
331 </dd>
332 <p></p>
333 <dt><strong><a name="item_on_osc_seq__24term_2c__24string">on_osc_seq $term, $string</a></strong><br />
334 </dt>
335 <dd>
336 Called whenever the <strong>ESC ] 777 ; string ST</strong> command sequence (OSC =
337 operating system command) is processed. Cursor position and other state
338 information is up-to-date when this happens. For interoperability, the
339 string should start with the extension name and a colon, to distinguish
340 it from commands for other extensions, and this might be enforced in the
341 future.
342 </dd>
343 <dd>
344 <p>Be careful not ever to trust (in a security sense) the data you receive,
345 as its source can not easily be controleld (e-mail content, messages from
346 other users on the same system etc.).</p>
347 </dd>
348 <p></p>
349 <dt><strong><a name="item_on_add_lines__24term_2c__24string">on_add_lines $term, $string</a></strong><br />
350 </dt>
351 <dd>
352 Called whenever text is about to be output, with the text as argument. You
353 can filter/change and output the text yourself by returning a true value
354 and calling <a href="#item_scr_add_lines"><code>$term-&gt;scr_add_lines</code></a> yourself. Please note that this
355 might be very slow, however, as your hook is called for <strong>all</strong> text being
356 output.
357 </dd>
358 <p></p>
359 <dt><strong><a name="item_on_tt_write__24term_2c__24octets">on_tt_write $term, $octets</a></strong><br />
360 </dt>
361 <dd>
362 Called whenever some data is written to the tty/pty and can be used to
363 suppress or filter tty input.
364 </dd>
365 <p></p>
366 <dt><strong><a name="item_on_line_update__24term_2c__24row">on_line_update $term, $row</a></strong><br />
367 </dt>
368 <dd>
369 Called whenever a line was updated or changed. Can be used to filter
370 screen output (e.g. underline urls or other useless stuff). Only lines
371 that are being shown will be filtered, and, due to performance reasons,
372 not always immediately.
373 </dd>
374 <dd>
375 <p>The row number is always the topmost row of the line if the line spans
376 multiple rows.</p>
377 </dd>
378 <dd>
379 <p>Please note that, if you change the line, then the hook might get called
380 later with the already-modified line (e.g. if unrelated parts change), so
381 you cannot just toggle rendition bits, but only set them.</p>
382 </dd>
383 <p></p>
384 <dt><strong><a name="item_on_refresh_begin__24term">on_refresh_begin $term</a></strong><br />
385 </dt>
386 <dd>
387 Called just before the screen gets redrawn. Can be used for overlay
388 or similar effects by modify terminal contents in refresh_begin, and
389 restoring them in refresh_end. The built-in overlay and selection display
390 code is run after this hook, and takes precedence.
391 </dd>
392 <p></p>
393 <dt><strong><a name="item_on_refresh_end__24term">on_refresh_end $term</a></strong><br />
394 </dt>
395 <dd>
396 Called just after the screen gets redrawn. See <code>on_refresh_begin</code>.
397 </dd>
398 <p></p>
399 <dt><strong><a name="item_on_keyboard_command__24term_2c__24string">on_keyboard_command $term, $string</a></strong><br />
400 </dt>
401 <dd>
402 Called whenever the user presses a key combination that has a
403 <code>perl:string</code> action bound to it (see description of the <strong>keysym</strong>
404 resource in the <code>rxvt(1)</code> manpage).
405 </dd>
406 <p></p>
407 <dt><strong><a name="item_on_focus_in__24term">on_focus_in $term</a></strong><br />
408 </dt>
409 <dd>
410 Called whenever the window gets the keyboard focus, before rxvt-unicode
411 does focus in processing.
412 </dd>
413 <p></p>
414 <dt><strong><a name="item_on_focus_out__24term">on_focus_out $term</a></strong><br />
415 </dt>
416 <dd>
417 Called wheneever the window loses keyboard focus, before rxvt-unicode does
418 focus out processing.
419 </dd>
420 <p></p>
421 <dt><strong><a name="item_on_key_press__24term_2c__24event_2c__24keysym_2c__">on_key_press $term, $event, $keysym, $octets</a></strong><br />
422 </dt>
423 <dt><strong><a name="item_on_key_release__24term_2c__24event_2c__24keysym">on_key_release $term, $event, $keysym</a></strong><br />
424 </dt>
425 <dt><strong><a name="item_on_button_press__24term_2c__24event">on_button_press $term, $event</a></strong><br />
426 </dt>
427 <dt><strong><a name="item_on_button_release__24term_2c__24event">on_button_release $term, $event</a></strong><br />
428 </dt>
429 <dt><strong><a name="item_on_motion_notify__24term_2c__24event">on_motion_notify $term, $event</a></strong><br />
430 </dt>
431 <dt><strong><a name="item_on_map_notify__24term_2c__24event">on_map_notify $term, $event</a></strong><br />
432 </dt>
433 <dt><strong><a name="item_on_unmap_notify__24term_2c__24event">on_unmap_notify $term, $event</a></strong><br />
434 </dt>
435 <dd>
436 Called whenever the corresponding X event is received for the terminal If
437 the hook returns true, then the even will be ignored by rxvt-unicode.
438 </dd>
439 <dd>
440 <p>The event is a hash with most values as named by Xlib (see the XEvent
441 manpage), with the additional members <code>row</code> and <code>col</code>, which are the row
442 and column under the mouse cursor.</p>
443 </dd>
444 <dd>
445 <p><code>on_key_press</code> additionally receives the string rxvt-unicode would
446 output, if any, in locale-specific encoding.</p>
447 </dd>
448 <dd>
449 <p>subwindow.</p>
450 </dd>
451 <p></p></dl>
452 <p>
453 </p>
454 <h2><a name="variables_in_the_urxvt_package">Variables in the <code>urxvt</code> Package</a></h2>
455 <dl>
456 <dt><strong><a name="item__24urxvt_3a_3alibdir">$urxvt::LIBDIR</a></strong><br />
457 </dt>
458 <dd>
459 The rxvt-unicode library directory, where, among other things, the perl
460 modules and scripts are stored.
461 </dd>
462 <p></p>
463 <dt><strong><a name="item__24urxvt_3a_3aresclass_2c__24urxvt_3a_3aresclass">$urxvt::RESCLASS, $urxvt::RESCLASS</a></strong><br />
464 </dt>
465 <dd>
466 The resource class and name rxvt-unicode uses to look up X resources.
467 </dd>
468 <p></p>
469 <dt><strong><a name="item__24urxvt_3a_3arxvtname">$urxvt::RXVTNAME</a></strong><br />
470 </dt>
471 <dd>
472 The basename of the installed binaries, usually <code>urxvt</code>.
473 </dd>
474 <p></p>
475 <dt><strong><a name="item__24urxvt_3a_3aterm">$urxvt::TERM</a></strong><br />
476 </dt>
477 <dd>
478 The current terminal. This variable stores the current <code>urxvt::term</code>
479 object, whenever a callback/hook is executing.
480 </dd>
481 <p></p></dl>
482 <p>
483 </p>
484 <h2><a name="functions_in_the_urxvt_package">Functions in the <code>urxvt</code> Package</a></h2>
485 <dl>
486 <dt><strong><a name="item_urxvt_3a_3afatal__24errormessage">urxvt::fatal $errormessage</a></strong><br />
487 </dt>
488 <dd>
489 Fatally aborts execution with the given error message. Avoid at all
490 costs! The only time this is acceptable is when the terminal process
491 starts up.
492 </dd>
493 <p></p>
494 <dt><strong><a name="item_urxvt_3a_3awarn__24string">urxvt::warn $string</a></strong><br />
495 </dt>
496 <dd>
497 Calls <code>rxvt_warn</code> with the given string which should not include a
498 newline. The module also overwrites the <code>warn</code> builtin with a function
499 that calls this function.
500 </dd>
501 <dd>
502 <p>Using this function has the advantage that its output ends up in the
503 correct place, e.g. on stderr of the connecting urxvtc client.</p>
504 </dd>
505 <dd>
506 <p>Messages have a size limit of 1023 bytes currently.</p>
507 </dd>
508 <p></p>
509 <dt><strong><a name="item__24is_safe__3d_urxvt_3a_3asafe">$is_safe = urxvt::safe</a></strong><br />
510 </dt>
511 <dd>
512 Returns true when it is safe to do potentially unsafe things, such as
513 evaluating perl code specified by the user. This is true when urxvt was
514 started setuid or setgid.
515 </dd>
516 <p></p>
517 <dt><strong><a name="item__24time__3d_urxvt_3a_3anow">$time = urxvt::NOW</a></strong><br />
518 </dt>
519 <dd>
520 Returns the ``current time'' (as per the event loop).
521 </dd>
522 <p></p>
523 <dt><strong><a name="item_urxvt_3a_3acurrenttime">urxvt::CurrentTime</a></strong><br />
524 </dt>
525 <dt><strong><a name="item_urxvt_3a_3ashiftmask_2c_lockmask_2c_controlmask_2c">urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
526 Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
527 Button4Mask, Button5Mask, AnyModifier</a></strong><br />
528 </dt>
529 <dd>
530 Various constants for use in X calls and event processing.
531 </dd>
532 <p></p></dl>
533 <p>
534 </p>
535 <h2><a name="rendition">RENDITION</a></h2>
536 <p>Rendition bitsets contain information about colour, font, font styles and
537 similar information for each screen cell.</p>
538 <p>The following ``macros'' deal with changes in rendition sets. You should
539 never just create a bitset, you should always modify an existing one,
540 as they contain important information required for correct operation of
541 rxvt-unicode.</p>
542 <dl>
543 <dt><strong><a name="item__24rend__3d_urxvt_3a_3adefault_rstyle">$rend = urxvt::DEFAULT_RSTYLE</a></strong><br />
544 </dt>
545 <dd>
546 Returns the default rendition, as used when the terminal is starting up or
547 being reset. Useful as a base to start when creating renditions.
548 </dd>
549 <p></p>
550 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aoverlay_rstyle">$rend = urxvt::OVERLAY_RSTYLE</a></strong><br />
551 </dt>
552 <dd>
553 Return the rendition mask used for overlays by default.
554 </dd>
555 <p></p>
556 <dt><strong><a name="item__24rendbit__3d_urxvt_3a_3ars_bold_2c_rs_italic_2c_">$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline</a></strong><br />
557 </dt>
558 <dd>
559 Return the bit that enabled bold, italic, blink, reverse-video and
560 underline, respectively. To enable such a style, just logically OR it into
561 the bitset.
562 </dd>
563 <p></p>
564 <dt><strong><a name="item__24foreground__3d_urxvt_3a_3aget_basefg__24rend">$foreground = urxvt::GET_BASEFG $rend</a></strong><br />
565 </dt>
566 <dt><strong><a name="item__24background__3d_urxvt_3a_3aget_basebg__24rend">$background = urxvt::GET_BASEBG $rend</a></strong><br />
567 </dt>
568 <dd>
569 Return the foreground/background colour index, respectively.
570 </dd>
571 <p></p>
572 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_fgcolor__24rend_2c__24n">$rend = urxvt::SET_FGCOLOR $rend, $new_colour</a></strong><br />
573 </dt>
574 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_bgcolor__24rend_2c__24n">$rend = urxvt::SET_BGCOLOR $rend, $new_colour</a></strong><br />
575 </dt>
576 <dd>
577 Replace the foreground/background colour in the rendition mask with the
578 specified one.
579 </dd>
580 <p></p>
581 <dt><strong><a name="item__24value__3d_urxvt_3a_3aget_custom__24rend">$value = urxvt::GET_CUSTOM $rend</a></strong><br />
582 </dt>
583 <dd>
584 Return the ``custom'' value: Every rendition has 5 bits for use by
585 extensions. They can be set and changed as you like and are initially
586 zero.
587 </dd>
588 <p></p>
589 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_custom__24rend_2c__24ne">$rend = urxvt::SET_CUSTOM $rend, $new_value</a></strong><br />
590 </dt>
591 <dd>
592 Change the custom value.
593 </dd>
594 <p></p></dl>
595 <p>
596 </p>
597 <h2><a name="the_urxvt__anyevent_class">The <code>urxvt::anyevent</code> Class</a></h2>
598 <p>The sole purpose of this class is to deliver an interface to the
599 <code>AnyEvent</code> module - any module using it will work inside urxvt without
600 further programming. The only exception is that you cannot wait on
601 condition variables, but non-blocking condvar use is ok. What this means
602 is that you cannot use blocking APIs, but the non-blocking variant should
603 work.</p>
604 <p>
605 </p>
606 <h2><a name="the_urxvt__term_class">The <code>urxvt::term</code> Class</a></h2>
607 <dl>
608 <dt><strong><a name="item__24term__3d_new_urxvt_3a_3aterm__24envhashref_2c__">$term = new urxvt::term $envhashref, $rxvtname, [arg...]</a></strong><br />
609 </dt>
610 <dd>
611 Creates a new terminal, very similar as if you had started it with system
612 <code>$rxvtname, arg...</code>. <code>$envhashref</code> must be a reference to a <code>%ENV</code>-like
613 hash which defines the environment of the new terminal.
614 </dd>
615 <dd>
616 <p>Croaks (and probably outputs an error message) if the new instance
617 couldn't be created. Returns <code>undef</code> if the new instance didn't
618 initialise perl, and the terminal object otherwise. The <code>init</code> and
619 <a href="#item_start"><code>start</code></a> hooks will be called during this call.</p>
620 </dd>
621 <p></p>
622 <dt><strong><a name="item_destroy">$term-&gt;destroy</a></strong><br />
623 </dt>
624 <dd>
625 Destroy the terminal object (close the window, free resources
626 etc.). Please note that rxvt will not exit as long as any event
627 watchers (timers, io watchers) are still active.
628 </dd>
629 <p></p>
630 <dt><strong><a name="item_option">$isset = $term-&gt;option ($optval[, $set])</a></strong><br />
631 </dt>
632 <dd>
633 Returns true if the option specified by <code>$optval</code> is enabled, and
634 optionally change it. All option values are stored by name in the hash
635 <code>%urxvt::OPTION</code>. Options not enabled in this binary are not in the hash.
636 </dd>
637 <dd>
638 <p>Here is a a likely non-exhaustive list of option names, please see the
639 source file <em>/src/optinc.h</em> to see the actual list:</p>
640 </dd>
641 <dd>
642 <pre>
643 borderLess console cursorBlink cursorUnderline hold iconic insecure
644 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
645 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
646 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
647 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
648 tripleclickwords utmpInhibit visualBell</pre>
649 </dd>
650 <p></p>
651 <dt><strong><a name="item_resource">$value = $term-&gt;resource ($name[, $newval])</a></strong><br />
652 </dt>
653 <dd>
654 Returns the current resource value associated with a given name and
655 optionally sets a new value. Setting values is most useful in the <code>init</code>
656 hook. Unset resources are returned and accepted as <code>undef</code>.
657 </dd>
658 <dd>
659 <p>The new value must be properly encoded to a suitable character encoding
660 before passing it to this method. Similarly, the returned value may need
661 to be converted from the used encoding to text.</p>
662 </dd>
663 <dd>
664 <p>Resource names are as defined in <em>src/rsinc.h</em>. Colours can be specified
665 as resource names of the form <code>color+&lt;index&gt;</code>, e.g. <code>color+5</code>. (will
666 likely change).</p>
667 </dd>
668 <dd>
669 <p>Please note that resource strings will currently only be freed when the
670 terminal is destroyed, so changing options frequently will eat memory.</p>
671 </dd>
672 <dd>
673 <p>Here is a a likely non-exhaustive list of resource names, not all of which
674 are supported in every build, please see the source file <em>/src/rsinc.h</em>
675 to see the actual list:</p>
676 </dd>
677 <dd>
678 <pre>
679 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
680 borderLess color cursorBlink cursorUnderline cutchars delete_key
681 display_name embed ext_bwidth fade font geometry hold iconName
682 imFont imLocale inputMethod insecure int_bwidth intensityStyles
683 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
684 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
685 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
686 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
687 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
688 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
689 shade term_name title transparent transparent_all tripleclickwords
690 utmpInhibit visualBell</pre>
691 </dd>
692 <p></p>
693 <dt><strong><a name="item_parse_keysym">$success = $term-&gt;parse_keysym ($keysym_spec, $command_string)</a></strong><br />
694 </dt>
695 <dd>
696 Adds a keymap translation exactly as specified via a resource. See the
697 <code>keysym</code> resource in the <code>rxvt(1)</code> manpage.
698 </dd>
699 <p></p>
700 <dt><strong><a name="item_rstyle">$rend = $term-&gt;rstyle ([$new_rstyle])</a></strong><br />
701 </dt>
702 <dd>
703 Return and optionally change the current rendition. Text that is output by
704 the terminal application will use this style.
705 </dd>
706 <p></p>
707 <dt><strong><a name="item_screen_cur">($row, $col) = $term-&gt;screen_cur ([$row, $col])</a></strong><br />
708 </dt>
709 <dd>
710 Return the current coordinates of the text cursor position and optionally
711 set it (which is usually bad as applications don't expect that).
712 </dd>
713 <p></p>
714 <dt><strong><a name="item_selection_mark">($row, $col) = $term-&gt;selection_mark ([$row, $col])</a></strong><br />
715 </dt>
716 <dt><strong><a name="item_selection_beg">($row, $col) = $term-&gt;selection_beg ([$row, $col])</a></strong><br />
717 </dt>
718 <dt><strong><a name="item_selection_end">($row, $col) = $term-&gt;selection_end ([$row, $col])</a></strong><br />
719 </dt>
720 <dd>
721 Return the current values of the selection mark, begin or end positions,
722 and optionally set them to new values.
723 </dd>
724 <p></p>
725 <dt><strong><a name="item_selection_grab">$success = $term-&gt;selection_grab ($eventtime)</a></strong><br />
726 </dt>
727 <dd>
728 Try to request the primary selection from the server (for example, as set
729 by the next method).
730 </dd>
731 <p></p>
732 <dt><strong>$oldtext = $term-&gt;selection ([$newtext])</strong><br />
733 </dt>
734 <dd>
735 Return the current selection text and optionally replace it by <code>$newtext</code>.
736 </dd>
737 <p></p>
738 <dt><strong><a name="item_overlay_simple">$term-&gt;overlay_simple ($x, $y, $text)</a></strong><br />
739 </dt>
740 <dd>
741 Create a simple multi-line overlay box. See the next method for details.
742 </dd>
743 <p></p>
744 <dt><strong><a name="item_overlay">$term-&gt;overlay ($x, $y, $width, $height[, $rstyle[, $border]])</a></strong><br />
745 </dt>
746 <dd>
747 Create a new (empty) overlay at the given position with the given
748 width/height. <code>$rstyle</code> defines the initial rendition style
749 (default: <code>OVERLAY_RSTYLE</code>).
750 </dd>
751 <dd>
752 <p>If <code>$border</code> is <code>2</code> (default), then a decorative border will be put
753 around the box.</p>
754 </dd>
755 <dd>
756 <p>If either <code>$x</code> or <code>$y</code> is negative, then this is counted from the
757 right/bottom side, respectively.</p>
758 </dd>
759 <dd>
760 <p>This method returns an urxvt::overlay object. The overlay will be visible
761 as long as the perl object is referenced.</p>
762 </dd>
763 <dd>
764 <p>The methods currently supported on <code>urxvt::overlay</code> objects are:</p>
765 </dd>
766 <dl>
767 <dt><strong><a name="item_set">$overlay-&gt;set ($x, $y, $text, $rend)</a></strong><br />
768 </dt>
769 <dd>
770 Similar to <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> and <a href="#item_row_r"><code>$term-&gt;ROW_r</code></a> in that it puts
771 text in rxvt-unicode's special encoding and an array of rendition values
772 at a specific position inside the overlay.
773 </dd>
774 <p></p>
775 <dt><strong><a name="item_hide">$overlay-&gt;hide</a></strong><br />
776 </dt>
777 <dd>
778 If visible, hide the overlay, but do not destroy it.
779 </dd>
780 <p></p>
781 <dt><strong><a name="item_show">$overlay-&gt;show</a></strong><br />
782 </dt>
783 <dd>
784 If hidden, display the overlay again.
785 </dd>
786 <p></p></dl>
787 <dt><strong>$popup = $term-&gt;popup ($event)</strong><br />
788 </dt>
789 <dd>
790 Creates a new <code>urxvt::popup</code> object that implements a popup menu. The
791 <code>$event</code> <em>must</em> be the event causing the menu to pop up (a button event,
792 currently).
793 </dd>
794 <p></p>
795 <dt><strong><a name="item_strwidth">$cellwidth = $term-&gt;strwidth ($string)</a></strong><br />
796 </dt>
797 <dd>
798 Returns the number of screen-cells this string would need. Correctly
799 accounts for wide and combining characters.
800 </dd>
801 <p></p>
802 <dt><strong><a name="item_locale_encode">$octets = $term-&gt;locale_encode ($string)</a></strong><br />
803 </dt>
804 <dd>
805 Convert the given text string into the corresponding locale encoding.
806 </dd>
807 <p></p>
808 <dt><strong><a name="item_locale_decode">$string = $term-&gt;locale_decode ($octets)</a></strong><br />
809 </dt>
810 <dd>
811 Convert the given locale-encoded octets into a perl string.
812 </dd>
813 <p></p>
814 <dt><strong><a name="item_scr_xor_span">$term-&gt;scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])</a></strong><br />
815 </dt>
816 <dd>
817 XORs the rendition values in the given span with the provided value
818 (default: <code>RS_RVid</code>). Useful in refresh hooks to provide effects similar
819 to the selection.
820 </dd>
821 <p></p>
822 <dt><strong><a name="item_scr_xor_rect">$term-&gt;scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])</a></strong><br />
823 </dt>
824 <dd>
825 Similar to <a href="#item_scr_xor_span"><code>scr_xor_span</code></a>, but xors a rectangle instead. Trailing
826 whitespace will additionally be xored with the <code>$rstyle2</code>, which defaults
827 to <code>RS_RVid | RS_Uline</code>, which removes reverse video again and underlines
828 it instead.
829 </dd>
830 <p></p>
831 <dt><strong><a name="item_scr_bell">$term-&gt;scr_bell</a></strong><br />
832 </dt>
833 <dd>
834 Ring the bell!
835 </dd>
836 <p></p>
837 <dt><strong><a name="item_scr_add_lines">$term-&gt;scr_add_lines ($string)</a></strong><br />
838 </dt>
839 <dd>
840 Write the given text string to the screen, as if output by the application
841 running inside the terminal. It may not contain command sequences (escape
842 codes), but is free to use line feeds, carriage returns and tabs. The
843 string is a normal text string, not in locale-dependent encoding.
844 </dd>
845 <dd>
846 <p>Normally its not a good idea to use this function, as programs might be
847 confused by changes in cursor position or scrolling. Its useful inside a
848 <code>on_add_lines</code> hook, though.</p>
849 </dd>
850 <p></p>
851 <dt><strong><a name="item_cmd_parse">$term-&gt;cmd_parse ($octets)</a></strong><br />
852 </dt>
853 <dd>
854 Similar to <a href="#item_scr_add_lines"><code>scr_add_lines</code></a>, but the argument must be in the
855 locale-specific encoding of the terminal and can contain command sequences
856 (escape codes) that will be interpreted.
857 </dd>
858 <p></p>
859 <dt><strong><a name="item_tt_write">$term-&gt;tt_write ($octets)</a></strong><br />
860 </dt>
861 <dd>
862 Write the octets given in <code>$data</code> to the tty (i.e. as program input). To
863 pass characters instead of octets, you should convert your strings first
864 to the locale-specific encoding using <a href="#item_locale_encode"><code>$term-&gt;locale_encode</code></a>.
865 </dd>
866 <p></p>
867 <dt><strong><a name="item_pty_ev_events">$old_events = $term-&gt;pty_ev_events ([$new_events])</a></strong><br />
868 </dt>
869 <dd>
870 Replaces the event mask of the pty watcher by the given event mask. Can
871 be used to suppress input and output handling to the pty/tty. See the
872 description of <a href="#item_events"><code>urxvt::timer-&gt;events</code></a>. Make sure to always restore
873 the previous value.
874 </dd>
875 <p></p>
876 <dt><strong><a name="item_parent">$windowid = $term-&gt;parent</a></strong><br />
877 </dt>
878 <dd>
879 Return the window id of the toplevel window.
880 </dd>
881 <p></p>
882 <dt><strong><a name="item_vt">$windowid = $term-&gt;vt</a></strong><br />
883 </dt>
884 <dd>
885 Return the window id of the terminal window.
886 </dd>
887 <p></p>
888 <dt><strong><a name="item_width">$window_width = $term-&gt;width</a></strong><br />
889 </dt>
890 <dt><strong><a name="item_height">$window_height = $term-&gt;height</a></strong><br />
891 </dt>
892 <dt><strong><a name="item_fwidth">$font_width = $term-&gt;fwidth</a></strong><br />
893 </dt>
894 <dt><strong><a name="item_fheight">$font_height = $term-&gt;fheight</a></strong><br />
895 </dt>
896 <dt><strong><a name="item_fbase">$font_ascent = $term-&gt;fbase</a></strong><br />
897 </dt>
898 <dt><strong><a name="item_nrow">$terminal_rows = $term-&gt;nrow</a></strong><br />
899 </dt>
900 <dt><strong><a name="item_ncol">$terminal_columns = $term-&gt;ncol</a></strong><br />
901 </dt>
902 <dt><strong><a name="item_focus">$has_focus = $term-&gt;focus</a></strong><br />
903 </dt>
904 <dt><strong><a name="item_mapped">$is_mapped = $term-&gt;mapped</a></strong><br />
905 </dt>
906 <dt><strong><a name="item_savelines">$max_scrollback = $term-&gt;saveLines</a></strong><br />
907 </dt>
908 <dt><strong><a name="item_total_rows">$nrow_plus_saveLines = $term-&gt;total_rows</a></strong><br />
909 </dt>
910 <dt><strong><a name="item_nsaved">$lines_in_scrollback = $term-&gt;nsaved</a></strong><br />
911 </dt>
912 <dd>
913 Return various integers describing terminal characteristics.
914 </dd>
915 <p></p>
916 <dt><strong><a name="item_display_id">$x_display = $term-&gt;display_id</a></strong><br />
917 </dt>
918 <dd>
919 Return the DISPLAY used by rxvt-unicode.
920 </dd>
921 <p></p>
922 <dt><strong><a name="item_locale">$lc_ctype = $term-&gt;locale</a></strong><br />
923 </dt>
924 <dd>
925 Returns the LC_CTYPE category string used by this rxvt-unicode.
926 </dd>
927 <p></p>
928 <dt><strong><a name="item_env">$env = $term-&gt;env</a></strong><br />
929 </dt>
930 <dd>
931 Returns a copy of the environment in effect for the terminal as a hashref
932 similar to <code>\%ENV</code>.
933 </dd>
934 <p></p>
935 <dt><strong><a name="item_modlevel3mask">$modifiermask = $term-&gt;ModLevel3Mask</a></strong><br />
936 </dt>
937 <dt><strong><a name="item_modmetamask">$modifiermask = $term-&gt;ModMetaMask</a></strong><br />
938 </dt>
939 <dt><strong><a name="item_modnumlockmask">$modifiermask = $term-&gt;ModNumLockMask</a></strong><br />
940 </dt>
941 <dd>
942 Return the modifier masks corresponding to the ``ISO Level 3 Shift'' (often
943 AltGr), the meta key (often Alt) and the num lock key, if applicable.
944 </dd>
945 <p></p>
946 <dt><strong><a name="item_view_start">$view_start = $term-&gt;view_start ([$newvalue])</a></strong><br />
947 </dt>
948 <dd>
949 Returns the negative row number of the topmost line. Minimum value is
950 <code>0</code>, which displays the normal terminal contents. Larger values scroll
951 this many lines into the scrollback buffer.
952 </dd>
953 <p></p>
954 <dt><strong><a name="item_want_refresh">$term-&gt;want_refresh</a></strong><br />
955 </dt>
956 <dd>
957 Requests a screen refresh. At the next opportunity, rxvt-unicode will
958 compare the on-screen display with its stored representation. If they
959 differ, it redraws the differences.
960 </dd>
961 <dd>
962 <p>Used after changing terminal contents to display them.</p>
963 </dd>
964 <p></p>
965 <dt><strong><a name="item_row_t">$text = $term-&gt;ROW_t ($row_number[, $new_text[, $start_col]])</a></strong><br />
966 </dt>
967 <dd>
968 Returns the text of the entire row with number <code>$row_number</code>. Row <code>0</code>
969 is the topmost terminal line, row <code>$term-&gt;$ncol-1</code> is the bottommost
970 terminal line. The scrollback buffer starts at line <code>-1</code> and extends to
971 line <a href="#item_nsaved"><code>-$term-&gt;nsaved</code></a>. Nothing will be returned if a nonexistent line
972 is requested.
973 </dd>
974 <dd>
975 <p>If <code>$new_text</code> is specified, it will replace characters in the current
976 line, starting at column <code>$start_col</code> (default <code>0</code>), which is useful
977 to replace only parts of a line. The font index in the rendition will
978 automatically be updated.</p>
979 </dd>
980 <dd>
981 <p><a href="#item__24text"><code>$text</code></a> is in a special encoding: tabs and wide characters that use more
982 than one cell when displayed are padded with urxvt::NOCHAR characters
983 (<code>chr 65535</code>). Characters with combining characters and other characters
984 that do not fit into the normal tetx encoding will be replaced with
985 characters in the private use area.</p>
986 </dd>
987 <dd>
988 <p>You have to obey this encoding when changing text. The advantage is
989 that <code>substr</code> and similar functions work on screen cells and not on
990 characters.</p>
991 </dd>
992 <dd>
993 <p>The methods <a href="#item_special_encode"><code>$term-&gt;special_encode</code></a> and <a href="#item_special_decode"><code>$term-&gt;special_decode</code></a>
994 can be used to convert normal strings into this encoding and vice versa.</p>
995 </dd>
996 <p></p>
997 <dt><strong><a name="item_row_r">$rend = $term-&gt;ROW_r ($row_number[, $new_rend[, $start_col]])</a></strong><br />
998 </dt>
999 <dd>
1000 Like <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a>, but returns an arrayref with rendition
1001 bitsets. Rendition bitsets contain information about colour, font, font
1002 styles and similar information. See also <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a>.
1003 </dd>
1004 <dd>
1005 <p>When setting rendition, the font mask will be ignored.</p>
1006 </dd>
1007 <dd>
1008 <p>See the section on RENDITION, above.</p>
1009 </dd>
1010 <p></p>
1011 <dt><strong><a name="item_row_l">$length = $term-&gt;ROW_l ($row_number[, $new_length])</a></strong><br />
1012 </dt>
1013 <dd>
1014 Returns the number of screen cells that are in use (``the line
1015 length''). Unlike the urxvt core, this returns <a href="#item_ncol"><code>$term-&gt;ncol</code></a> if the
1016 line is joined with the following one.
1017 </dd>
1018 <p></p>
1019 <dt><strong><a name="item_is_longer">$bool = $term-&gt;is_longer ($row_number)</a></strong><br />
1020 </dt>
1021 <dd>
1022 Returns true if the row is part of a multiple-row logical ``line'' (i.e.
1023 joined with the following row), which means all characters are in use
1024 and it is continued on the next row (and possibly a continuation of the
1025 previous row(s)).
1026 </dd>
1027 <p></p>
1028 <dt><strong><a name="item_line">$line = $term-&gt;line ($row_number)</a></strong><br />
1029 </dt>
1030 <dd>
1031 Create and return a new <code>urxvt::line</code> object that stores information
1032 about the logical line that row <code>$row_number</code> is part of. It supports the
1033 following methods:
1034 </dd>
1035 <dl>
1036 <dt><strong><a name="item_t">$text = $line-&gt;t ([$new_text])</a></strong><br />
1037 </dt>
1038 <dd>
1039 Returns or replaces the full text of the line, similar to <a href="#item_row_t"><code>ROW_t</code></a>
1040 </dd>
1041 <p></p>
1042 <dt><strong><a name="item_r">$rend = $line-&gt;r ([$new_rend])</a></strong><br />
1043 </dt>
1044 <dd>
1045 Returns or replaces the full rendition array of the line, similar to <a href="#item_row_r"><code>ROW_r</code></a>
1046 </dd>
1047 <p></p>
1048 <dt><strong><a name="item_l">$length = $line-&gt;l</a></strong><br />
1049 </dt>
1050 <dd>
1051 Returns the length of the line in cells, similar to <a href="#item_row_l"><code>ROW_l</code></a>.
1052 </dd>
1053 <p></p>
1054 <dt><strong><a name="item_beg">$rownum = $line-&gt;beg</a></strong><br />
1055 </dt>
1056 <dt><strong><a name="item_end">$rownum = $line-&gt;end</a></strong><br />
1057 </dt>
1058 <dd>
1059 Return the row number of the first/last row of the line, respectively.
1060 </dd>
1061 <p></p>
1062 <dt><strong><a name="item_offset_of">$offset = $line-&gt;offset_of ($row, $col)</a></strong><br />
1063 </dt>
1064 <dd>
1065 Returns the character offset of the given row|col pair within the logical
1066 line.
1067 </dd>
1068 <p></p>
1069 <dt><strong><a name="item_coord_of">($row, $col) = $line-&gt;coord_of ($offset)</a></strong><br />
1070 </dt>
1071 <dd>
1072 Translates a string offset into terminal coordinates again.
1073 </dd>
1074 <p></p></dl>
1075 <dt><strong><a name="item_special_encode">$text = $term-&gt;special_encode $string</a></strong><br />
1076 </dt>
1077 <dd>
1078 Converts a perl string into the special encoding used by rxvt-unicode,
1079 where one character corresponds to one screen cell. See
1080 <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> for details.
1081 </dd>
1082 <p></p>
1083 <dt><strong><a name="item_special_decode">$string = $term-&gt;special_decode $text</a></strong><br />
1084 </dt>
1085 <dd>
1086 Converts rxvt-unicodes text reprsentation into a perl string. See
1087 <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> for details.
1088 </dd>
1089 <p></p>
1090 <dt><strong><a name="item_grab_button">$success = $term-&gt;grab_button ($button, $modifiermask)</a></strong><br />
1091 </dt>
1092 <dd>
1093 Registers a synchronous button grab. See the XGrabButton manpage.
1094 </dd>
1095 <p></p>
1096 <dt><strong><a name="item_grab">$success = $term-&gt;grab ($eventtime[, $sync])</a></strong><br />
1097 </dt>
1098 <dd>
1099 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1100 synchronous (<code>$sync</code> is true). Also remembers the grab timestampe.
1101 </dd>
1102 <p></p>
1103 <dt><strong><a name="item_allow_events_async">$term-&gt;allow_events_async</a></strong><br />
1104 </dt>
1105 <dd>
1106 Calls XAllowEvents with AsyncBoth for the most recent grab.
1107 </dd>
1108 <p></p>
1109 <dt><strong><a name="item_allow_events_sync">$term-&gt;allow_events_sync</a></strong><br />
1110 </dt>
1111 <dd>
1112 Calls XAllowEvents with SyncBoth for the most recent grab.
1113 </dd>
1114 <p></p>
1115 <dt><strong><a name="item_allow_events_replay">$term-&gt;allow_events_replay</a></strong><br />
1116 </dt>
1117 <dd>
1118 Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1119 recent grab.
1120 </dd>
1121 <p></p>
1122 <dt><strong><a name="item_ungrab">$term-&gt;ungrab</a></strong><br />
1123 </dt>
1124 <dd>
1125 Calls XUngrab for the most recent grab. Is called automatically on
1126 evaluation errors, as it is better to lose the grab in the error case as
1127 the session.
1128 </dd>
1129 <p></p></dl>
1130 <p>
1131 </p>
1132 <h2><a name="the_urxvt__popup_class">The <code>urxvt::popup</code> Class</a></h2>
1133 <dl>
1134 <dt><strong><a name="item_add_title">$popup-&gt;add_title ($title)</a></strong><br />
1135 </dt>
1136 <dd>
1137 Adds a non-clickable title to the popup.
1138 </dd>
1139 <p></p>
1140 <dt><strong><a name="item_add_separator">$popup-&gt;add_separator ([$sepchr])</a></strong><br />
1141 </dt>
1142 <dd>
1143 Creates a separator, optionally using the character given as <code>$sepchr</code>.
1144 </dd>
1145 <p></p>
1146 <dt><strong><a name="item_add_button">$popup-&gt;add_button ($text, $cb)</a></strong><br />
1147 </dt>
1148 <dd>
1149 Adds a clickable button to the popup. <code>$cb</code> is called whenever it is
1150 selected.
1151 </dd>
1152 <p></p>
1153 <dt><strong><a name="item_add_toggle">$popup-&gt;add_toggle ($text, $cb, $initial_value)</a></strong><br />
1154 </dt>
1155 <dd>
1156 Adds a toggle/checkbox item to the popup. Teh callback gets called
1157 whenever it gets toggled, with a boolean indicating its value as its first
1158 argument.
1159 </dd>
1160 <p></p>
1161 <dt><strong>$popup-&gt;show</strong><br />
1162 </dt>
1163 <dd>
1164 Displays the popup (which is initially hidden).
1165 </dd>
1166 <p></p></dl>
1167 <p>
1168 </p>
1169 <h2><a name="the_urxvt__timer_class">The <code>urxvt::timer</code> Class</a></h2>
1170 <p>This class implements timer watchers/events. Time is represented as a
1171 fractional number of seconds since the epoch. Example:</p>
1172 <pre>
1173 $term-&gt;{overlay} = $term-&gt;overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1174 $term-&gt;{timer} = urxvt::timer
1175 -&gt;new
1176 -&gt;interval (1)
1177 -&gt;cb (sub {
1178 $term-&gt;{overlay}-&gt;set (0, 0,
1179 sprintf &quot;%2d:%02d:%02d&quot;, (localtime urxvt::NOW)[2,1,0]);
1180 });</pre>
1181 <dl>
1182 <dt><strong><a name="item__24timer__3d_new_urxvt_3a_3atimer">$timer = new urxvt::timer</a></strong><br />
1183 </dt>
1184 <dd>
1185 Create a new timer object in started state. It is scheduled to fire
1186 immediately.
1187 </dd>
1188 <p></p>
1189 <dt><strong><a name="item_cb">$timer = $timer-&gt;cb (sub { my ($timer) = @_; ... })</a></strong><br />
1190 </dt>
1191 <dd>
1192 Set the callback to be called when the timer triggers.
1193 </dd>
1194 <p></p>
1195 <dt><strong><a name="item_at">$tstamp = $timer-&gt;at</a></strong><br />
1196 </dt>
1197 <dd>
1198 Return the time this watcher will fire next.
1199 </dd>
1200 <p></p>
1201 <dt><strong>$timer = $timer-&gt;set ($tstamp)</strong><br />
1202 </dt>
1203 <dd>
1204 Set the time the event is generated to $tstamp.
1205 </dd>
1206 <p></p>
1207 <dt><strong><a name="item_interval">$timer = $timer-&gt;interval ($interval)</a></strong><br />
1208 </dt>
1209 <dd>
1210 Normally (and when <code>$interval</code> is <code>0</code>), the timer will automatically
1211 stop after it has fired once. If <code>$interval</code> is non-zero, then the timer
1212 is automatically rescheduled at the given intervals.
1213 </dd>
1214 <p></p>
1215 <dt><strong><a name="item_start">$timer = $timer-&gt;start</a></strong><br />
1216 </dt>
1217 <dd>
1218 Start the timer.
1219 </dd>
1220 <p></p>
1221 <dt><strong>$timer = $timer-&gt;start ($tstamp)</strong><br />
1222 </dt>
1223 <dd>
1224 Set the event trigger time to <code>$tstamp</code> and start the timer.
1225 </dd>
1226 <p></p>
1227 <dt><strong><a name="item_stop">$timer = $timer-&gt;stop</a></strong><br />
1228 </dt>
1229 <dd>
1230 Stop the timer.
1231 </dd>
1232 <p></p></dl>
1233 <p>
1234 </p>
1235 <h2><a name="the_urxvt__iow_class">The <code>urxvt::iow</code> Class</a></h2>
1236 <p>This class implements io watchers/events. Example:</p>
1237 <pre>
1238 $term-&gt;{socket} = ...
1239 $term-&gt;{iow} = urxvt::iow
1240 -&gt;new
1241 -&gt;fd (fileno $term-&gt;{socket})
1242 -&gt;events (urxvt::EVENT_READ)
1243 -&gt;start
1244 -&gt;cb (sub {
1245 my ($iow, $revents) = @_;
1246 # $revents must be 1 here, no need to check
1247 sysread $term-&gt;{socket}, my $buf, 8192
1248 or end-of-file;
1249 });</pre>
1250 <dl>
1251 <dt><strong><a name="item__24iow__3d_new_urxvt_3a_3aiow">$iow = new urxvt::iow</a></strong><br />
1252 </dt>
1253 <dd>
1254 Create a new io watcher object in stopped state.
1255 </dd>
1256 <p></p>
1257 <dt><strong>$iow = $iow-&gt;cb (sub { my ($iow, $reventmask) = @_; ... })</strong><br />
1258 </dt>
1259 <dd>
1260 Set the callback to be called when io events are triggered. <code>$reventmask</code>
1261 is a bitset as described in the <a href="#item_events"><code>events</code></a> method.
1262 </dd>
1263 <p></p>
1264 <dt><strong><a name="item_fd">$iow = $iow-&gt;fd ($fd)</a></strong><br />
1265 </dt>
1266 <dd>
1267 Set the filedescriptor (not handle) to watch.
1268 </dd>
1269 <p></p>
1270 <dt><strong><a name="item_events">$iow = $iow-&gt;events ($eventmask)</a></strong><br />
1271 </dt>
1272 <dd>
1273 Set the event mask to watch. The only allowed values are
1274 <code>urxvt::EVENT_READ</code> and <code>urxvt::EVENT_WRITE</code>, which might be ORed
1275 together, or <code>urxvt::EVENT_NONE</code>.
1276 </dd>
1277 <p></p>
1278 <dt><strong>$iow = $iow-&gt;start</strong><br />
1279 </dt>
1280 <dd>
1281 Start watching for requested events on the given handle.
1282 </dd>
1283 <p></p>
1284 <dt><strong>$iow = $iow-&gt;stop</strong><br />
1285 </dt>
1286 <dd>
1287 Stop watching for events on the given filehandle.
1288 </dd>
1289 <p></p></dl>
1290 <p>
1291 </p>
1292 <hr />
1293 <h1><a name="environment">ENVIRONMENT</a></h1>
1294 <p>
1295 </p>
1296 <h2><a name="urxvt_perl_verbosity">URXVT_PERL_VERBOSITY</a></h2>
1297 <p>This variable controls the verbosity level of the perl extension. Higher
1298 numbers indicate more verbose output.</p>
1299 <dl>
1300 <dt><strong><a name="item__3d_3d_0__2d_fatal_messages">== 0 - fatal messages</a></strong><br />
1301 </dt>
1302 <dt><strong><a name="item__3e_3d_3__2d_script_loading_and_management">&gt;= 3 - script loading and management</a></strong><br />
1303 </dt>
1304 <dt><strong><a name="item__3e_3d10__2d_all_events_received">&gt;=10 - all events received</a></strong><br />
1305 </dt>
1306 </dl>
1307 <p>
1308 </p>
1309 <hr />
1310 <h1><a name="author">AUTHOR</a></h1>
1311 <pre>
1312 Marc Lehmann &lt;pcg@goof.com&gt;
1313 <a href="http://software.schmorp.de/pkg/rxvt-unicode">http://software.schmorp.de/pkg/rxvt-unicode</a></pre>
1314
1315 </body>
1316
1317 </html>