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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 and
147 make them clickable. When clicked, the program specified in the resource
148 <code>urlLauncher</code> (default <code>x-www-browser</code>) will be started.
149 </dd>
150 <p></p>
151 <dt><strong><a name="item_block_2dgraphics_2dto_2dascii">block-graphics-to-ascii</a></strong><br />
152 </dt>
153 <dd>
154 A not very useful example of filtering all text output to the terminal,
155 by replacing all line-drawing characters (U+2500 .. U+259F) by a
156 similar-looking ascii character.
157 </dd>
158 <p></p>
159 <dt><strong><a name="item_example_2drefresh_2dhooks">example-refresh-hooks</a></strong><br />
160 </dt>
161 <dd>
162 Displays a very simple digital clock in the upper right corner of the
163 window. Illustrates overwriting the refresh callbacks to create your own
164 overlays or changes.
165 </dd>
166 <p></p></dl>
167 <p>
168 </p>
169 <hr />
170 <h1><a name="api_documentation">API DOCUMENTATION</a></h1>
171 <p>
172 </p>
173 <h2><a name="general_api_considerations">General API Considerations</a></h2>
174 <p>All objects (such as terminals, time watchers etc.) are typical
175 reference-to-hash objects. The hash can be used to store anything you
176 like. All members starting with an underscore (such as <code>_ptr</code> or
177 <code>_hook</code>) are reserved for internal uses and <strong>MUST NOT</strong> be accessed or
178 modified).</p>
179 <p>When objects are destroyed on the C++ side, the perl object hashes are
180 emptied, so its best to store related objects such as time watchers and
181 the like inside the terminal object so they get destroyed as soon as the
182 terminal is destroyed.</p>
183 <p>Argument names also often indicate the type of a parameter. Here are some
184 hints on what they mean:</p>
185 <dl>
186 <dt><strong><a name="item__24text">$text</a></strong><br />
187 </dt>
188 <dd>
189 Rxvt-unicodes special way of encoding text, where one ``unicode'' character
190 always represents one screen cell. See <a href="#item_row_t">ROW_t</a> for a discussion of this format.
191 </dd>
192 <p></p>
193 <dt><strong><a name="item__24string">$string</a></strong><br />
194 </dt>
195 <dd>
196 A perl text string, with an emphasis on <em>text</em>. It can store all unicode
197 characters and is to be distinguished with text encoded in a specific
198 encoding (often locale-specific) and binary data.
199 </dd>
200 <p></p>
201 <dt><strong><a name="item__24octets">$octets</a></strong><br />
202 </dt>
203 <dd>
204 Either binary data or - more common - a text string encoded in a
205 locale-specific way.
206 </dd>
207 <p></p></dl>
208 <p>
209 </p>
210 <h2><a name="extension_objects">Extension Objects</a></h2>
211 <p>Very perl extension is a perl class. A separate perl object is created
212 for each terminal and each extension and passed as the first parameter to
213 hooks. So extensions can use their <code>$self</code> object without having to think
214 about other extensions, with the exception of methods and members that
215 begin with an underscore character <code>_</code>: these are reserved for internal
216 use.</p>
217 <p>Although it isn't a <code>urxvt::term</code> object, you can call all methods of the
218 <code>urxvt::term</code> class on this object.</p>
219 <p>It has the following methods and data members:</p>
220 <dl>
221 <dt><strong><a name="item__24urxvt_term__3d__24self_2d_3e_7bterm_7d">$urxvt_term = $self-&gt;{term}</a></strong><br />
222 </dt>
223 <dd>
224 Returns the <code>urxvt::term</code> object associated with this instance of the
225 extension. This member <em>must not</em> be changed in any way.
226 </dd>
227 <p></p>
228 <dt><strong><a name="item_enable">$self-&gt;enable ($hook_name =&gt; $cb, [$hook_name =&gt; $cb..])</a></strong><br />
229 </dt>
230 <dd>
231 Dynamically enable the given hooks (named without the <code>on_</code> prefix) for
232 this extension, replacing any previous hook. This is useful when you want
233 to overwrite time-critical hooks only temporarily.
234 </dd>
235 <p></p>
236 <dt><strong><a name="item_disable">$self-&gt;disable ($hook_name[, $hook_name..])</a></strong><br />
237 </dt>
238 <dd>
239 Dynamically disable the given hooks.
240 </dd>
241 <p></p></dl>
242 <p>
243 </p>
244 <h2><a name="hooks">Hooks</a></h2>
245 <p>The following subroutines can be declared in extension files, and will be
246 called whenever the relevant event happens.</p>
247 <p>The first argument passed to them is an extension oject as described in
248 the in the <code>Extension Objects</code> section.</p>
249 <p><strong>All</strong> of these hooks must return a boolean value. If it is true, then the
250 event counts as being <em>consumed</em>, and the invocation of other hooks is
251 skipped, and the relevant action might not be carried out by the C++ code.</p>
252 <p><em>When in doubt, return a false value (preferably <code>()</code>). </em>&gt;</p>
253 <dl>
254 <dt><strong><a name="item_on_init__24term">on_init $term</a></strong><br />
255 </dt>
256 <dd>
257 Called after a new terminal object has been initialized, but before
258 windows are created or the command gets run. Most methods are unsafe to
259 call or deliver senseless data, as terminal size and other characteristics
260 have not yet been determined. You can safely query and change resources,
261 though.
262 </dd>
263 <p></p>
264 <dt><strong><a name="item_on_reset__24term">on_reset $term</a></strong><br />
265 </dt>
266 <dd>
267 Called after the screen is ``reset'' for any reason, such as resizing or
268 control sequences. Here is where you can react on changes to size-related
269 variables.
270 </dd>
271 <p></p>
272 <dt><strong><a name="item_on_start__24term">on_start $term</a></strong><br />
273 </dt>
274 <dd>
275 Called at the very end of initialisation of a new terminal, just before
276 returning to the mainloop.
277 </dd>
278 <p></p>
279 <dt><strong><a name="item_on_sel_make__24term_2c__24eventtime">on_sel_make $term, $eventtime</a></strong><br />
280 </dt>
281 <dd>
282 Called whenever a selection has been made by the user, but before the
283 selection text is copied, so changes to the beginning, end or type of the
284 selection will be honored.
285 </dd>
286 <dd>
287 <p>Returning a true value aborts selection making by urxvt, in which case you
288 have to make a selection yourself by calling <a href="#item_selection_grab"><code>$term-&gt;selection_grab</code></a>.</p>
289 </dd>
290 <p></p>
291 <dt><strong><a name="item_on_sel_grab__24term_2c__24eventtime">on_sel_grab $term, $eventtime</a></strong><br />
292 </dt>
293 <dd>
294 Called whenever a selection has been copied, but before the selection is
295 requested from the server. The selection text can be queried and changed
296 by calling <a href="#item_selection"><code>$term-&gt;selection</code></a>.
297 </dd>
298 <dd>
299 <p>Returning a true value aborts selection grabbing. It will still be hilighted.</p>
300 </dd>
301 <p></p>
302 <dt><strong><a name="item_on_sel_extend__24term">on_sel_extend $term</a></strong><br />
303 </dt>
304 <dd>
305 Called whenever the user tries to extend the selection (e.g. with a double
306 click) and is either supposed to return false (normal operation), or
307 should extend the selection itelf and return true to suppress the built-in
308 processing.
309 </dd>
310 <dd>
311 <p>See the <em>selection</em> example extension.</p>
312 </dd>
313 <p></p>
314 <dt><strong><a name="item_on_view_change__24term_2c__24offset">on_view_change $term, $offset</a></strong><br />
315 </dt>
316 <dd>
317 Called whenever the view offset changes, i..e the user or program
318 scrolls. Offset <code>0</code> means display the normal terminal, positive values
319 show this many lines of scrollback.
320 </dd>
321 <p></p>
322 <dt><strong><a name="item_on_scroll_back__24term_2c__24lines_2c__24saved">on_scroll_back $term, $lines, $saved</a></strong><br />
323 </dt>
324 <dd>
325 Called whenever lines scroll out of the terminal area into the scrollback
326 buffer. <code>$lines</code> is the number of lines scrolled out and may be larger
327 than the scroll back buffer or the terminal.
328 </dd>
329 <dd>
330 <p>It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
331 $nrow - 1) represent the lines to be scrolled out). <code>$saved</code> is the total
332 number of lines that will be in the scrollback buffer.</p>
333 </dd>
334 <p></p>
335 <dt><strong><a name="item_on_osc_seq__24term_2c__24string">on_osc_seq $term, $string</a></strong><br />
336 </dt>
337 <dd>
338 Called whenever the <strong>ESC ] 777 ; string ST</strong> command sequence (OSC =
339 operating system command) is processed. Cursor position and other state
340 information is up-to-date when this happens. For interoperability, the
341 string should start with the extension name and a colon, to distinguish
342 it from commands for other extensions, and this might be enforced in the
343 future.
344 </dd>
345 <dd>
346 <p>Be careful not ever to trust (in a security sense) the data you receive,
347 as its source can not easily be controleld (e-mail content, messages from
348 other users on the same system etc.).</p>
349 </dd>
350 <p></p>
351 <dt><strong><a name="item_on_add_lines__24term_2c__24string">on_add_lines $term, $string</a></strong><br />
352 </dt>
353 <dd>
354 Called whenever text is about to be output, with the text as argument. You
355 can filter/change and output the text yourself by returning a true value
356 and calling <a href="#item_scr_add_lines"><code>$term-&gt;scr_add_lines</code></a> yourself. Please note that this
357 might be very slow, however, as your hook is called for <strong>all</strong> text being
358 output.
359 </dd>
360 <p></p>
361 <dt><strong><a name="item_on_tt_write__24term_2c__24octets">on_tt_write $term, $octets</a></strong><br />
362 </dt>
363 <dd>
364 Called whenever some data is written to the tty/pty and can be used to
365 suppress or filter tty input.
366 </dd>
367 <p></p>
368 <dt><strong><a name="item_on_line_update__24term_2c__24row">on_line_update $term, $row</a></strong><br />
369 </dt>
370 <dd>
371 Called whenever a line was updated or changed. Can be used to filter
372 screen output (e.g. underline urls or other useless stuff). Only lines
373 that are being shown will be filtered, and, due to performance reasons,
374 not always immediately.
375 </dd>
376 <dd>
377 <p>The row number is always the topmost row of the line if the line spans
378 multiple rows.</p>
379 </dd>
380 <dd>
381 <p>Please note that, if you change the line, then the hook might get called
382 later with the already-modified line (e.g. if unrelated parts change), so
383 you cannot just toggle rendition bits, but only set them.</p>
384 </dd>
385 <p></p>
386 <dt><strong><a name="item_on_refresh_begin__24term">on_refresh_begin $term</a></strong><br />
387 </dt>
388 <dd>
389 Called just before the screen gets redrawn. Can be used for overlay
390 or similar effects by modify terminal contents in refresh_begin, and
391 restoring them in refresh_end. The built-in overlay and selection display
392 code is run after this hook, and takes precedence.
393 </dd>
394 <p></p>
395 <dt><strong><a name="item_on_refresh_end__24term">on_refresh_end $term</a></strong><br />
396 </dt>
397 <dd>
398 Called just after the screen gets redrawn. See <code>on_refresh_begin</code>.
399 </dd>
400 <p></p>
401 <dt><strong><a name="item_on_keyboard_command__24term_2c__24string">on_keyboard_command $term, $string</a></strong><br />
402 </dt>
403 <dd>
404 Called whenever the user presses a key combination that has a
405 <code>perl:string</code> action bound to it (see description of the <strong>keysym</strong>
406 resource in the <code>rxvt(1)</code> manpage).
407 </dd>
408 <p></p>
409 <dt><strong><a name="item_on_focus_in__24term">on_focus_in $term</a></strong><br />
410 </dt>
411 <dd>
412 Called whenever the window gets the keyboard focus, before rxvt-unicode
413 does focus in processing.
414 </dd>
415 <p></p>
416 <dt><strong><a name="item_on_focus_out__24term">on_focus_out $term</a></strong><br />
417 </dt>
418 <dd>
419 Called wheneever the window loses keyboard focus, before rxvt-unicode does
420 focus out processing.
421 </dd>
422 <p></p>
423 <dt><strong><a name="item_on_key_press__24term_2c__24event_2c__24keysym_2c__">on_key_press $term, $event, $keysym, $octets</a></strong><br />
424 </dt>
425 <dt><strong><a name="item_on_key_release__24term_2c__24event_2c__24keysym">on_key_release $term, $event, $keysym</a></strong><br />
426 </dt>
427 <dt><strong><a name="item_on_button_press__24term_2c__24event">on_button_press $term, $event</a></strong><br />
428 </dt>
429 <dt><strong><a name="item_on_button_release__24term_2c__24event">on_button_release $term, $event</a></strong><br />
430 </dt>
431 <dt><strong><a name="item_on_motion_notify__24term_2c__24event">on_motion_notify $term, $event</a></strong><br />
432 </dt>
433 <dt><strong><a name="item_on_map_notify__24term_2c__24event">on_map_notify $term, $event</a></strong><br />
434 </dt>
435 <dt><strong><a name="item_on_unmap_notify__24term_2c__24event">on_unmap_notify $term, $event</a></strong><br />
436 </dt>
437 <dd>
438 Called whenever the corresponding X event is received for the terminal If
439 the hook returns true, then the even will be ignored by rxvt-unicode.
440 </dd>
441 <dd>
442 <p>The event is a hash with most values as named by Xlib (see the XEvent
443 manpage), with the additional members <code>row</code> and <code>col</code>, which are the row
444 and column under the mouse cursor.</p>
445 </dd>
446 <dd>
447 <p><code>on_key_press</code> additionally receives the string rxvt-unicode would
448 output, if any, in locale-specific encoding.</p>
449 </dd>
450 <dd>
451 <p>subwindow.</p>
452 </dd>
453 <p></p></dl>
454 <p>
455 </p>
456 <h2><a name="variables_in_the_urxvt_package">Variables in the <code>urxvt</code> Package</a></h2>
457 <dl>
458 <dt><strong><a name="item__24urxvt_3a_3alibdir">$urxvt::LIBDIR</a></strong><br />
459 </dt>
460 <dd>
461 The rxvt-unicode library directory, where, among other things, the perl
462 modules and scripts are stored.
463 </dd>
464 <p></p>
465 <dt><strong><a name="item__24urxvt_3a_3aresclass_2c__24urxvt_3a_3aresclass">$urxvt::RESCLASS, $urxvt::RESCLASS</a></strong><br />
466 </dt>
467 <dd>
468 The resource class and name rxvt-unicode uses to look up X resources.
469 </dd>
470 <p></p>
471 <dt><strong><a name="item__24urxvt_3a_3arxvtname">$urxvt::RXVTNAME</a></strong><br />
472 </dt>
473 <dd>
474 The basename of the installed binaries, usually <code>urxvt</code>.
475 </dd>
476 <p></p>
477 <dt><strong><a name="item__24urxvt_3a_3aterm">$urxvt::TERM</a></strong><br />
478 </dt>
479 <dd>
480 The current terminal. This variable stores the current <code>urxvt::term</code>
481 object, whenever a callback/hook is executing.
482 </dd>
483 <p></p></dl>
484 <p>
485 </p>
486 <h2><a name="functions_in_the_urxvt_package">Functions in the <code>urxvt</code> Package</a></h2>
487 <dl>
488 <dt><strong><a name="item_urxvt_3a_3afatal__24errormessage">urxvt::fatal $errormessage</a></strong><br />
489 </dt>
490 <dd>
491 Fatally aborts execution with the given error message. Avoid at all
492 costs! The only time this is acceptable is when the terminal process
493 starts up.
494 </dd>
495 <p></p>
496 <dt><strong><a name="item_urxvt_3a_3awarn__24string">urxvt::warn $string</a></strong><br />
497 </dt>
498 <dd>
499 Calls <code>rxvt_warn</code> with the given string which should not include a
500 newline. The module also overwrites the <code>warn</code> builtin with a function
501 that calls this function.
502 </dd>
503 <dd>
504 <p>Using this function has the advantage that its output ends up in the
505 correct place, e.g. on stderr of the connecting urxvtc client.</p>
506 </dd>
507 <dd>
508 <p>Messages have a size limit of 1023 bytes currently.</p>
509 </dd>
510 <p></p>
511 <dt><strong><a name="item__24is_safe__3d_urxvt_3a_3asafe">$is_safe = urxvt::safe</a></strong><br />
512 </dt>
513 <dd>
514 Returns true when it is safe to do potentially unsafe things, such as
515 evaluating perl code specified by the user. This is true when urxvt was
516 started setuid or setgid.
517 </dd>
518 <p></p>
519 <dt><strong><a name="item__24time__3d_urxvt_3a_3anow">$time = urxvt::NOW</a></strong><br />
520 </dt>
521 <dd>
522 Returns the ``current time'' (as per the event loop).
523 </dd>
524 <p></p>
525 <dt><strong><a name="item_urxvt_3a_3acurrenttime">urxvt::CurrentTime</a></strong><br />
526 </dt>
527 <dt><strong><a name="item_urxvt_3a_3ashiftmask_2c_lockmask_2c_controlmask_2c">urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
528 Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
529 Button4Mask, Button5Mask, AnyModifier</a></strong><br />
530 </dt>
531 <dd>
532 Various constants for use in X calls and event processing.
533 </dd>
534 <p></p></dl>
535 <p>
536 </p>
537 <h2><a name="rendition">RENDITION</a></h2>
538 <p>Rendition bitsets contain information about colour, font, font styles and
539 similar information for each screen cell.</p>
540 <p>The following ``macros'' deal with changes in rendition sets. You should
541 never just create a bitset, you should always modify an existing one,
542 as they contain important information required for correct operation of
543 rxvt-unicode.</p>
544 <dl>
545 <dt><strong><a name="item__24rend__3d_urxvt_3a_3adefault_rstyle">$rend = urxvt::DEFAULT_RSTYLE</a></strong><br />
546 </dt>
547 <dd>
548 Returns the default rendition, as used when the terminal is starting up or
549 being reset. Useful as a base to start when creating renditions.
550 </dd>
551 <p></p>
552 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aoverlay_rstyle">$rend = urxvt::OVERLAY_RSTYLE</a></strong><br />
553 </dt>
554 <dd>
555 Return the rendition mask used for overlays by default.
556 </dd>
557 <p></p>
558 <dt><strong><a name="item__24rendbit__3d_urxvt_3a_3ars_bold_2c_rs_italic_2c_">$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline</a></strong><br />
559 </dt>
560 <dd>
561 Return the bit that enabled bold, italic, blink, reverse-video and
562 underline, respectively. To enable such a style, just logically OR it into
563 the bitset.
564 </dd>
565 <p></p>
566 <dt><strong><a name="item__24foreground__3d_urxvt_3a_3aget_basefg__24rend">$foreground = urxvt::GET_BASEFG $rend</a></strong><br />
567 </dt>
568 <dt><strong><a name="item__24background__3d_urxvt_3a_3aget_basebg__24rend">$background = urxvt::GET_BASEBG $rend</a></strong><br />
569 </dt>
570 <dd>
571 Return the foreground/background colour index, respectively.
572 </dd>
573 <p></p>
574 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_fgcolor__24rend_2c__24n">$rend = urxvt::SET_FGCOLOR $rend, $new_colour</a></strong><br />
575 </dt>
576 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_bgcolor__24rend_2c__24n">$rend = urxvt::SET_BGCOLOR $rend, $new_colour</a></strong><br />
577 </dt>
578 <dd>
579 Replace the foreground/background colour in the rendition mask with the
580 specified one.
581 </dd>
582 <p></p>
583 <dt><strong><a name="item__24value__3d_urxvt_3a_3aget_custom__24rend">$value = urxvt::GET_CUSTOM $rend</a></strong><br />
584 </dt>
585 <dd>
586 Return the ``custom'' value: Every rendition has 5 bits for use by
587 extensions. They can be set and changed as you like and are initially
588 zero.
589 </dd>
590 <p></p>
591 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_custom__24rend_2c__24ne">$rend = urxvt::SET_CUSTOM $rend, $new_value</a></strong><br />
592 </dt>
593 <dd>
594 Change the custom value.
595 </dd>
596 <p></p></dl>
597 <p>
598 </p>
599 <h2><a name="the_urxvt__anyevent_class">The <code>urxvt::anyevent</code> Class</a></h2>
600 <p>The sole purpose of this class is to deliver an interface to the
601 <code>AnyEvent</code> module - any module using it will work inside urxvt without
602 further programming. The only exception is that you cannot wait on
603 condition variables, but non-blocking condvar use is ok. What this means
604 is that you cannot use blocking APIs, but the non-blocking variant should
605 work.</p>
606 <p>
607 </p>
608 <h2><a name="the_urxvt__term_class">The <code>urxvt::term</code> Class</a></h2>
609 <dl>
610 <dt><strong><a name="item__24term__3d_new_urxvt_3a_3aterm__24envhashref_2c__">$term = new urxvt::term $envhashref, $rxvtname, [arg...]</a></strong><br />
611 </dt>
612 <dd>
613 Creates a new terminal, very similar as if you had started it with system
614 <code>$rxvtname, arg...</code>. <code>$envhashref</code> must be a reference to a <code>%ENV</code>-like
615 hash which defines the environment of the new terminal.
616 </dd>
617 <dd>
618 <p>Croaks (and probably outputs an error message) if the new instance
619 couldn't be created. Returns <code>undef</code> if the new instance didn't
620 initialise perl, and the terminal object otherwise. The <code>init</code> and
621 <a href="#item_start"><code>start</code></a> hooks will be called during this call.</p>
622 </dd>
623 <p></p>
624 <dt><strong><a name="item_destroy">$term-&gt;destroy</a></strong><br />
625 </dt>
626 <dd>
627 Destroy the terminal object (close the window, free resources
628 etc.). Please note that rxvt will not exit as long as any event
629 watchers (timers, io watchers) are still active.
630 </dd>
631 <p></p>
632 <dt><strong><a name="item_option">$isset = $term-&gt;option ($optval[, $set])</a></strong><br />
633 </dt>
634 <dd>
635 Returns true if the option specified by <code>$optval</code> is enabled, and
636 optionally change it. All option values are stored by name in the hash
637 <code>%urxvt::OPTION</code>. Options not enabled in this binary are not in the hash.
638 </dd>
639 <dd>
640 <p>Here is a a likely non-exhaustive list of option names, please see the
641 source file <em>/src/optinc.h</em> to see the actual list:</p>
642 </dd>
643 <dd>
644 <pre>
645 borderLess console cursorBlink cursorUnderline hold iconic insecure
646 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
647 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
648 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
649 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
650 tripleclickwords utmpInhibit visualBell</pre>
651 </dd>
652 <p></p>
653 <dt><strong><a name="item_resource">$value = $term-&gt;resource ($name[, $newval])</a></strong><br />
654 </dt>
655 <dd>
656 Returns the current resource value associated with a given name and
657 optionally sets a new value. Setting values is most useful in the <code>init</code>
658 hook. Unset resources are returned and accepted as <code>undef</code>.
659 </dd>
660 <dd>
661 <p>The new value must be properly encoded to a suitable character encoding
662 before passing it to this method. Similarly, the returned value may need
663 to be converted from the used encoding to text.</p>
664 </dd>
665 <dd>
666 <p>Resource names are as defined in <em>src/rsinc.h</em>. Colours can be specified
667 as resource names of the form <code>color+&lt;index&gt;</code>, e.g. <code>color+5</code>. (will
668 likely change).</p>
669 </dd>
670 <dd>
671 <p>Please note that resource strings will currently only be freed when the
672 terminal is destroyed, so changing options frequently will eat memory.</p>
673 </dd>
674 <dd>
675 <p>Here is a a likely non-exhaustive list of resource names, not all of which
676 are supported in every build, please see the source file <em>/src/rsinc.h</em>
677 to see the actual list:</p>
678 </dd>
679 <dd>
680 <pre>
681 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
682 borderLess color cursorBlink cursorUnderline cutchars delete_key
683 display_name embed ext_bwidth fade font geometry hold iconName
684 imFont imLocale inputMethod insecure int_bwidth intensityStyles
685 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
686 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
687 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
688 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
689 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
690 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
691 shade term_name title transparent transparent_all tripleclickwords
692 utmpInhibit visualBell</pre>
693 </dd>
694 <p></p>
695 <dt><strong><a name="item_x_resource">$value = $term-&gt;x_resource ($pattern)</a></strong><br />
696 </dt>
697 <dd>
698 Returns the X-Resource for the given pattern, excluding the program or
699 class name, i.e. <a href="#item_x_resource"><code>$term-&gt;x_resource (&quot;boldFont&quot;)</code></a> should return the
700 same value as used by this instance of rxvt-unicode. Returns <code>undef</code> if no
701 resource with that pattern exists.
702 </dd>
703 <dd>
704 <p>This method should only be called during the <code>on_start</code> hook, as there is
705 only one resource database per display, and later invocations might return
706 the wrong resources.</p>
707 </dd>
708 <p></p>
709 <dt><strong><a name="item_parse_keysym">$success = $term-&gt;parse_keysym ($keysym_spec, $command_string)</a></strong><br />
710 </dt>
711 <dd>
712 Adds a keymap translation exactly as specified via a resource. See the
713 <code>keysym</code> resource in the <code>rxvt(1)</code> manpage.
714 </dd>
715 <p></p>
716 <dt><strong><a name="item_rstyle">$rend = $term-&gt;rstyle ([$new_rstyle])</a></strong><br />
717 </dt>
718 <dd>
719 Return and optionally change the current rendition. Text that is output by
720 the terminal application will use this style.
721 </dd>
722 <p></p>
723 <dt><strong><a name="item_screen_cur">($row, $col) = $term-&gt;screen_cur ([$row, $col])</a></strong><br />
724 </dt>
725 <dd>
726 Return the current coordinates of the text cursor position and optionally
727 set it (which is usually bad as applications don't expect that).
728 </dd>
729 <p></p>
730 <dt><strong><a name="item_selection_mark">($row, $col) = $term-&gt;selection_mark ([$row, $col])</a></strong><br />
731 </dt>
732 <dt><strong><a name="item_selection_beg">($row, $col) = $term-&gt;selection_beg ([$row, $col])</a></strong><br />
733 </dt>
734 <dt><strong><a name="item_selection_end">($row, $col) = $term-&gt;selection_end ([$row, $col])</a></strong><br />
735 </dt>
736 <dd>
737 Return the current values of the selection mark, begin or end positions,
738 and optionally set them to new values.
739 </dd>
740 <p></p>
741 <dt><strong><a name="item_selection_grab">$success = $term-&gt;selection_grab ($eventtime)</a></strong><br />
742 </dt>
743 <dd>
744 Try to request the primary selection from the server (for example, as set
745 by the next method).
746 </dd>
747 <p></p>
748 <dt><strong>$oldtext = $term-&gt;selection ([$newtext])</strong><br />
749 </dt>
750 <dd>
751 Return the current selection text and optionally replace it by <code>$newtext</code>.
752 </dd>
753 <p></p>
754 <dt><strong><a name="item_overlay_simple">$term-&gt;overlay_simple ($x, $y, $text)</a></strong><br />
755 </dt>
756 <dd>
757 Create a simple multi-line overlay box. See the next method for details.
758 </dd>
759 <p></p>
760 <dt><strong><a name="item_overlay">$term-&gt;overlay ($x, $y, $width, $height[, $rstyle[, $border]])</a></strong><br />
761 </dt>
762 <dd>
763 Create a new (empty) overlay at the given position with the given
764 width/height. <code>$rstyle</code> defines the initial rendition style
765 (default: <code>OVERLAY_RSTYLE</code>).
766 </dd>
767 <dd>
768 <p>If <code>$border</code> is <code>2</code> (default), then a decorative border will be put
769 around the box.</p>
770 </dd>
771 <dd>
772 <p>If either <code>$x</code> or <code>$y</code> is negative, then this is counted from the
773 right/bottom side, respectively.</p>
774 </dd>
775 <dd>
776 <p>This method returns an urxvt::overlay object. The overlay will be visible
777 as long as the perl object is referenced.</p>
778 </dd>
779 <dd>
780 <p>The methods currently supported on <code>urxvt::overlay</code> objects are:</p>
781 </dd>
782 <dl>
783 <dt><strong><a name="item_set">$overlay-&gt;set ($x, $y, $text, $rend)</a></strong><br />
784 </dt>
785 <dd>
786 Similar to <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> and <a href="#item_row_r"><code>$term-&gt;ROW_r</code></a> in that it puts
787 text in rxvt-unicode's special encoding and an array of rendition values
788 at a specific position inside the overlay.
789 </dd>
790 <p></p>
791 <dt><strong><a name="item_hide">$overlay-&gt;hide</a></strong><br />
792 </dt>
793 <dd>
794 If visible, hide the overlay, but do not destroy it.
795 </dd>
796 <p></p>
797 <dt><strong><a name="item_show">$overlay-&gt;show</a></strong><br />
798 </dt>
799 <dd>
800 If hidden, display the overlay again.
801 </dd>
802 <p></p></dl>
803 <dt><strong>$popup = $term-&gt;popup ($event)</strong><br />
804 </dt>
805 <dd>
806 Creates a new <code>urxvt::popup</code> object that implements a popup menu. The
807 <code>$event</code> <em>must</em> be the event causing the menu to pop up (a button event,
808 currently).
809 </dd>
810 <p></p>
811 <dt><strong><a name="item_strwidth">$cellwidth = $term-&gt;strwidth ($string)</a></strong><br />
812 </dt>
813 <dd>
814 Returns the number of screen-cells this string would need. Correctly
815 accounts for wide and combining characters.
816 </dd>
817 <p></p>
818 <dt><strong><a name="item_locale_encode">$octets = $term-&gt;locale_encode ($string)</a></strong><br />
819 </dt>
820 <dd>
821 Convert the given text string into the corresponding locale encoding.
822 </dd>
823 <p></p>
824 <dt><strong><a name="item_locale_decode">$string = $term-&gt;locale_decode ($octets)</a></strong><br />
825 </dt>
826 <dd>
827 Convert the given locale-encoded octets into a perl string.
828 </dd>
829 <p></p>
830 <dt><strong><a name="item_scr_xor_span">$term-&gt;scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])</a></strong><br />
831 </dt>
832 <dd>
833 XORs the rendition values in the given span with the provided value
834 (default: <code>RS_RVid</code>). Useful in refresh hooks to provide effects similar
835 to the selection.
836 </dd>
837 <p></p>
838 <dt><strong><a name="item_scr_xor_rect">$term-&gt;scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])</a></strong><br />
839 </dt>
840 <dd>
841 Similar to <a href="#item_scr_xor_span"><code>scr_xor_span</code></a>, but xors a rectangle instead. Trailing
842 whitespace will additionally be xored with the <code>$rstyle2</code>, which defaults
843 to <code>RS_RVid | RS_Uline</code>, which removes reverse video again and underlines
844 it instead.
845 </dd>
846 <p></p>
847 <dt><strong><a name="item_scr_bell">$term-&gt;scr_bell</a></strong><br />
848 </dt>
849 <dd>
850 Ring the bell!
851 </dd>
852 <p></p>
853 <dt><strong><a name="item_scr_add_lines">$term-&gt;scr_add_lines ($string)</a></strong><br />
854 </dt>
855 <dd>
856 Write the given text string to the screen, as if output by the application
857 running inside the terminal. It may not contain command sequences (escape
858 codes), but is free to use line feeds, carriage returns and tabs. The
859 string is a normal text string, not in locale-dependent encoding.
860 </dd>
861 <dd>
862 <p>Normally its not a good idea to use this function, as programs might be
863 confused by changes in cursor position or scrolling. Its useful inside a
864 <code>on_add_lines</code> hook, though.</p>
865 </dd>
866 <p></p>
867 <dt><strong><a name="item_cmd_parse">$term-&gt;cmd_parse ($octets)</a></strong><br />
868 </dt>
869 <dd>
870 Similar to <a href="#item_scr_add_lines"><code>scr_add_lines</code></a>, but the argument must be in the
871 locale-specific encoding of the terminal and can contain command sequences
872 (escape codes) that will be interpreted.
873 </dd>
874 <p></p>
875 <dt><strong><a name="item_tt_write">$term-&gt;tt_write ($octets)</a></strong><br />
876 </dt>
877 <dd>
878 Write the octets given in <code>$data</code> to the tty (i.e. as program input). To
879 pass characters instead of octets, you should convert your strings first
880 to the locale-specific encoding using <a href="#item_locale_encode"><code>$term-&gt;locale_encode</code></a>.
881 </dd>
882 <p></p>
883 <dt><strong><a name="item_pty_ev_events">$old_events = $term-&gt;pty_ev_events ([$new_events])</a></strong><br />
884 </dt>
885 <dd>
886 Replaces the event mask of the pty watcher by the given event mask. Can
887 be used to suppress input and output handling to the pty/tty. See the
888 description of <a href="#item_events"><code>urxvt::timer-&gt;events</code></a>. Make sure to always restore
889 the previous value.
890 </dd>
891 <p></p>
892 <dt><strong><a name="item_parent">$windowid = $term-&gt;parent</a></strong><br />
893 </dt>
894 <dd>
895 Return the window id of the toplevel window.
896 </dd>
897 <p></p>
898 <dt><strong><a name="item_vt">$windowid = $term-&gt;vt</a></strong><br />
899 </dt>
900 <dd>
901 Return the window id of the terminal window.
902 </dd>
903 <p></p>
904 <dt><strong><a name="item_width">$window_width = $term-&gt;width</a></strong><br />
905 </dt>
906 <dt><strong><a name="item_height">$window_height = $term-&gt;height</a></strong><br />
907 </dt>
908 <dt><strong><a name="item_fwidth">$font_width = $term-&gt;fwidth</a></strong><br />
909 </dt>
910 <dt><strong><a name="item_fheight">$font_height = $term-&gt;fheight</a></strong><br />
911 </dt>
912 <dt><strong><a name="item_fbase">$font_ascent = $term-&gt;fbase</a></strong><br />
913 </dt>
914 <dt><strong><a name="item_nrow">$terminal_rows = $term-&gt;nrow</a></strong><br />
915 </dt>
916 <dt><strong><a name="item_ncol">$terminal_columns = $term-&gt;ncol</a></strong><br />
917 </dt>
918 <dt><strong><a name="item_focus">$has_focus = $term-&gt;focus</a></strong><br />
919 </dt>
920 <dt><strong><a name="item_mapped">$is_mapped = $term-&gt;mapped</a></strong><br />
921 </dt>
922 <dt><strong><a name="item_savelines">$max_scrollback = $term-&gt;saveLines</a></strong><br />
923 </dt>
924 <dt><strong><a name="item_total_rows">$nrow_plus_saveLines = $term-&gt;total_rows</a></strong><br />
925 </dt>
926 <dt><strong><a name="item_nsaved">$lines_in_scrollback = $term-&gt;nsaved</a></strong><br />
927 </dt>
928 <dd>
929 Return various integers describing terminal characteristics.
930 </dd>
931 <p></p>
932 <dt><strong><a name="item_display_id">$x_display = $term-&gt;display_id</a></strong><br />
933 </dt>
934 <dd>
935 Return the DISPLAY used by rxvt-unicode.
936 </dd>
937 <p></p>
938 <dt><strong><a name="item_locale">$lc_ctype = $term-&gt;locale</a></strong><br />
939 </dt>
940 <dd>
941 Returns the LC_CTYPE category string used by this rxvt-unicode.
942 </dd>
943 <p></p>
944 <dt><strong><a name="item_env">$env = $term-&gt;env</a></strong><br />
945 </dt>
946 <dd>
947 Returns a copy of the environment in effect for the terminal as a hashref
948 similar to <code>\%ENV</code>.
949 </dd>
950 <p></p>
951 <dt><strong><a name="item_modlevel3mask">$modifiermask = $term-&gt;ModLevel3Mask</a></strong><br />
952 </dt>
953 <dt><strong><a name="item_modmetamask">$modifiermask = $term-&gt;ModMetaMask</a></strong><br />
954 </dt>
955 <dt><strong><a name="item_modnumlockmask">$modifiermask = $term-&gt;ModNumLockMask</a></strong><br />
956 </dt>
957 <dd>
958 Return the modifier masks corresponding to the ``ISO Level 3 Shift'' (often
959 AltGr), the meta key (often Alt) and the num lock key, if applicable.
960 </dd>
961 <p></p>
962 <dt><strong><a name="item_view_start">$view_start = $term-&gt;view_start ([$newvalue])</a></strong><br />
963 </dt>
964 <dd>
965 Returns the negative row number of the topmost line. Minimum value is
966 <code>0</code>, which displays the normal terminal contents. Larger values scroll
967 this many lines into the scrollback buffer.
968 </dd>
969 <p></p>
970 <dt><strong><a name="item_want_refresh">$term-&gt;want_refresh</a></strong><br />
971 </dt>
972 <dd>
973 Requests a screen refresh. At the next opportunity, rxvt-unicode will
974 compare the on-screen display with its stored representation. If they
975 differ, it redraws the differences.
976 </dd>
977 <dd>
978 <p>Used after changing terminal contents to display them.</p>
979 </dd>
980 <p></p>
981 <dt><strong><a name="item_row_t">$text = $term-&gt;ROW_t ($row_number[, $new_text[, $start_col]])</a></strong><br />
982 </dt>
983 <dd>
984 Returns the text of the entire row with number <code>$row_number</code>. Row <code>0</code>
985 is the topmost terminal line, row <code>$term-&gt;$ncol-1</code> is the bottommost
986 terminal line. The scrollback buffer starts at line <code>-1</code> and extends to
987 line <a href="#item_nsaved"><code>-$term-&gt;nsaved</code></a>. Nothing will be returned if a nonexistent line
988 is requested.
989 </dd>
990 <dd>
991 <p>If <code>$new_text</code> is specified, it will replace characters in the current
992 line, starting at column <code>$start_col</code> (default <code>0</code>), which is useful
993 to replace only parts of a line. The font index in the rendition will
994 automatically be updated.</p>
995 </dd>
996 <dd>
997 <p><a href="#item__24text"><code>$text</code></a> is in a special encoding: tabs and wide characters that use more
998 than one cell when displayed are padded with urxvt::NOCHAR characters
999 (<code>chr 65535</code>). Characters with combining characters and other characters
1000 that do not fit into the normal tetx encoding will be replaced with
1001 characters in the private use area.</p>
1002 </dd>
1003 <dd>
1004 <p>You have to obey this encoding when changing text. The advantage is
1005 that <code>substr</code> and similar functions work on screen cells and not on
1006 characters.</p>
1007 </dd>
1008 <dd>
1009 <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>
1010 can be used to convert normal strings into this encoding and vice versa.</p>
1011 </dd>
1012 <p></p>
1013 <dt><strong><a name="item_row_r">$rend = $term-&gt;ROW_r ($row_number[, $new_rend[, $start_col]])</a></strong><br />
1014 </dt>
1015 <dd>
1016 Like <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a>, but returns an arrayref with rendition
1017 bitsets. Rendition bitsets contain information about colour, font, font
1018 styles and similar information. See also <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a>.
1019 </dd>
1020 <dd>
1021 <p>When setting rendition, the font mask will be ignored.</p>
1022 </dd>
1023 <dd>
1024 <p>See the section on RENDITION, above.</p>
1025 </dd>
1026 <p></p>
1027 <dt><strong><a name="item_row_l">$length = $term-&gt;ROW_l ($row_number[, $new_length])</a></strong><br />
1028 </dt>
1029 <dd>
1030 Returns the number of screen cells that are in use (``the line
1031 length''). Unlike the urxvt core, this returns <a href="#item_ncol"><code>$term-&gt;ncol</code></a> if the
1032 line is joined with the following one.
1033 </dd>
1034 <p></p>
1035 <dt><strong><a name="item_is_longer">$bool = $term-&gt;is_longer ($row_number)</a></strong><br />
1036 </dt>
1037 <dd>
1038 Returns true if the row is part of a multiple-row logical ``line'' (i.e.
1039 joined with the following row), which means all characters are in use
1040 and it is continued on the next row (and possibly a continuation of the
1041 previous row(s)).
1042 </dd>
1043 <p></p>
1044 <dt><strong><a name="item_line">$line = $term-&gt;line ($row_number)</a></strong><br />
1045 </dt>
1046 <dd>
1047 Create and return a new <code>urxvt::line</code> object that stores information
1048 about the logical line that row <code>$row_number</code> is part of. It supports the
1049 following methods:
1050 </dd>
1051 <dl>
1052 <dt><strong><a name="item_t">$text = $line-&gt;t ([$new_text])</a></strong><br />
1053 </dt>
1054 <dd>
1055 Returns or replaces the full text of the line, similar to <a href="#item_row_t"><code>ROW_t</code></a>
1056 </dd>
1057 <p></p>
1058 <dt><strong><a name="item_r">$rend = $line-&gt;r ([$new_rend])</a></strong><br />
1059 </dt>
1060 <dd>
1061 Returns or replaces the full rendition array of the line, similar to <a href="#item_row_r"><code>ROW_r</code></a>
1062 </dd>
1063 <p></p>
1064 <dt><strong><a name="item_l">$length = $line-&gt;l</a></strong><br />
1065 </dt>
1066 <dd>
1067 Returns the length of the line in cells, similar to <a href="#item_row_l"><code>ROW_l</code></a>.
1068 </dd>
1069 <p></p>
1070 <dt><strong><a name="item_beg">$rownum = $line-&gt;beg</a></strong><br />
1071 </dt>
1072 <dt><strong><a name="item_end">$rownum = $line-&gt;end</a></strong><br />
1073 </dt>
1074 <dd>
1075 Return the row number of the first/last row of the line, respectively.
1076 </dd>
1077 <p></p>
1078 <dt><strong><a name="item_offset_of">$offset = $line-&gt;offset_of ($row, $col)</a></strong><br />
1079 </dt>
1080 <dd>
1081 Returns the character offset of the given row|col pair within the logical
1082 line.
1083 </dd>
1084 <p></p>
1085 <dt><strong><a name="item_coord_of">($row, $col) = $line-&gt;coord_of ($offset)</a></strong><br />
1086 </dt>
1087 <dd>
1088 Translates a string offset into terminal coordinates again.
1089 </dd>
1090 <p></p></dl>
1091 <dt><strong><a name="item_special_encode">$text = $term-&gt;special_encode $string</a></strong><br />
1092 </dt>
1093 <dd>
1094 Converts a perl string into the special encoding used by rxvt-unicode,
1095 where one character corresponds to one screen cell. See
1096 <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> for details.
1097 </dd>
1098 <p></p>
1099 <dt><strong><a name="item_special_decode">$string = $term-&gt;special_decode $text</a></strong><br />
1100 </dt>
1101 <dd>
1102 Converts rxvt-unicodes text reprsentation into a perl string. See
1103 <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> for details.
1104 </dd>
1105 <p></p>
1106 <dt><strong><a name="item_grab_button">$success = $term-&gt;grab_button ($button, $modifiermask)</a></strong><br />
1107 </dt>
1108 <dd>
1109 Registers a synchronous button grab. See the XGrabButton manpage.
1110 </dd>
1111 <p></p>
1112 <dt><strong><a name="item_grab">$success = $term-&gt;grab ($eventtime[, $sync])</a></strong><br />
1113 </dt>
1114 <dd>
1115 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1116 synchronous (<code>$sync</code> is true). Also remembers the grab timestampe.
1117 </dd>
1118 <p></p>
1119 <dt><strong><a name="item_allow_events_async">$term-&gt;allow_events_async</a></strong><br />
1120 </dt>
1121 <dd>
1122 Calls XAllowEvents with AsyncBoth for the most recent grab.
1123 </dd>
1124 <p></p>
1125 <dt><strong><a name="item_allow_events_sync">$term-&gt;allow_events_sync</a></strong><br />
1126 </dt>
1127 <dd>
1128 Calls XAllowEvents with SyncBoth for the most recent grab.
1129 </dd>
1130 <p></p>
1131 <dt><strong><a name="item_allow_events_replay">$term-&gt;allow_events_replay</a></strong><br />
1132 </dt>
1133 <dd>
1134 Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1135 recent grab.
1136 </dd>
1137 <p></p>
1138 <dt><strong><a name="item_ungrab">$term-&gt;ungrab</a></strong><br />
1139 </dt>
1140 <dd>
1141 Calls XUngrab for the most recent grab. Is called automatically on
1142 evaluation errors, as it is better to lose the grab in the error case as
1143 the session.
1144 </dd>
1145 <p></p></dl>
1146 <p>
1147 </p>
1148 <h2><a name="the_urxvt__popup_class">The <code>urxvt::popup</code> Class</a></h2>
1149 <dl>
1150 <dt><strong><a name="item_add_title">$popup-&gt;add_title ($title)</a></strong><br />
1151 </dt>
1152 <dd>
1153 Adds a non-clickable title to the popup.
1154 </dd>
1155 <p></p>
1156 <dt><strong><a name="item_add_separator">$popup-&gt;add_separator ([$sepchr])</a></strong><br />
1157 </dt>
1158 <dd>
1159 Creates a separator, optionally using the character given as <code>$sepchr</code>.
1160 </dd>
1161 <p></p>
1162 <dt><strong><a name="item_add_button">$popup-&gt;add_button ($text, $cb)</a></strong><br />
1163 </dt>
1164 <dd>
1165 Adds a clickable button to the popup. <code>$cb</code> is called whenever it is
1166 selected.
1167 </dd>
1168 <p></p>
1169 <dt><strong><a name="item_add_toggle">$popup-&gt;add_toggle ($text, $cb, $initial_value)</a></strong><br />
1170 </dt>
1171 <dd>
1172 Adds a toggle/checkbox item to the popup. Teh callback gets called
1173 whenever it gets toggled, with a boolean indicating its value as its first
1174 argument.
1175 </dd>
1176 <p></p>
1177 <dt><strong>$popup-&gt;show</strong><br />
1178 </dt>
1179 <dd>
1180 Displays the popup (which is initially hidden).
1181 </dd>
1182 <p></p></dl>
1183 <p>
1184 </p>
1185 <h2><a name="the_urxvt__timer_class">The <code>urxvt::timer</code> Class</a></h2>
1186 <p>This class implements timer watchers/events. Time is represented as a
1187 fractional number of seconds since the epoch. Example:</p>
1188 <pre>
1189 $term-&gt;{overlay} = $term-&gt;overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1190 $term-&gt;{timer} = urxvt::timer
1191 -&gt;new
1192 -&gt;interval (1)
1193 -&gt;cb (sub {
1194 $term-&gt;{overlay}-&gt;set (0, 0,
1195 sprintf &quot;%2d:%02d:%02d&quot;, (localtime urxvt::NOW)[2,1,0]);
1196 });</pre>
1197 <dl>
1198 <dt><strong><a name="item__24timer__3d_new_urxvt_3a_3atimer">$timer = new urxvt::timer</a></strong><br />
1199 </dt>
1200 <dd>
1201 Create a new timer object in started state. It is scheduled to fire
1202 immediately.
1203 </dd>
1204 <p></p>
1205 <dt><strong><a name="item_cb">$timer = $timer-&gt;cb (sub { my ($timer) = @_; ... })</a></strong><br />
1206 </dt>
1207 <dd>
1208 Set the callback to be called when the timer triggers.
1209 </dd>
1210 <p></p>
1211 <dt><strong><a name="item_at">$tstamp = $timer-&gt;at</a></strong><br />
1212 </dt>
1213 <dd>
1214 Return the time this watcher will fire next.
1215 </dd>
1216 <p></p>
1217 <dt><strong>$timer = $timer-&gt;set ($tstamp)</strong><br />
1218 </dt>
1219 <dd>
1220 Set the time the event is generated to $tstamp.
1221 </dd>
1222 <p></p>
1223 <dt><strong><a name="item_interval">$timer = $timer-&gt;interval ($interval)</a></strong><br />
1224 </dt>
1225 <dd>
1226 Normally (and when <code>$interval</code> is <code>0</code>), the timer will automatically
1227 stop after it has fired once. If <code>$interval</code> is non-zero, then the timer
1228 is automatically rescheduled at the given intervals.
1229 </dd>
1230 <p></p>
1231 <dt><strong><a name="item_start">$timer = $timer-&gt;start</a></strong><br />
1232 </dt>
1233 <dd>
1234 Start the timer.
1235 </dd>
1236 <p></p>
1237 <dt><strong>$timer = $timer-&gt;start ($tstamp)</strong><br />
1238 </dt>
1239 <dd>
1240 Set the event trigger time to <code>$tstamp</code> and start the timer.
1241 </dd>
1242 <p></p>
1243 <dt><strong><a name="item_stop">$timer = $timer-&gt;stop</a></strong><br />
1244 </dt>
1245 <dd>
1246 Stop the timer.
1247 </dd>
1248 <p></p></dl>
1249 <p>
1250 </p>
1251 <h2><a name="the_urxvt__iow_class">The <code>urxvt::iow</code> Class</a></h2>
1252 <p>This class implements io watchers/events. Example:</p>
1253 <pre>
1254 $term-&gt;{socket} = ...
1255 $term-&gt;{iow} = urxvt::iow
1256 -&gt;new
1257 -&gt;fd (fileno $term-&gt;{socket})
1258 -&gt;events (urxvt::EVENT_READ)
1259 -&gt;start
1260 -&gt;cb (sub {
1261 my ($iow, $revents) = @_;
1262 # $revents must be 1 here, no need to check
1263 sysread $term-&gt;{socket}, my $buf, 8192
1264 or end-of-file;
1265 });</pre>
1266 <dl>
1267 <dt><strong><a name="item__24iow__3d_new_urxvt_3a_3aiow">$iow = new urxvt::iow</a></strong><br />
1268 </dt>
1269 <dd>
1270 Create a new io watcher object in stopped state.
1271 </dd>
1272 <p></p>
1273 <dt><strong>$iow = $iow-&gt;cb (sub { my ($iow, $reventmask) = @_; ... })</strong><br />
1274 </dt>
1275 <dd>
1276 Set the callback to be called when io events are triggered. <code>$reventmask</code>
1277 is a bitset as described in the <a href="#item_events"><code>events</code></a> method.
1278 </dd>
1279 <p></p>
1280 <dt><strong><a name="item_fd">$iow = $iow-&gt;fd ($fd)</a></strong><br />
1281 </dt>
1282 <dd>
1283 Set the filedescriptor (not handle) to watch.
1284 </dd>
1285 <p></p>
1286 <dt><strong><a name="item_events">$iow = $iow-&gt;events ($eventmask)</a></strong><br />
1287 </dt>
1288 <dd>
1289 Set the event mask to watch. The only allowed values are
1290 <code>urxvt::EVENT_READ</code> and <code>urxvt::EVENT_WRITE</code>, which might be ORed
1291 together, or <code>urxvt::EVENT_NONE</code>.
1292 </dd>
1293 <p></p>
1294 <dt><strong>$iow = $iow-&gt;start</strong><br />
1295 </dt>
1296 <dd>
1297 Start watching for requested events on the given handle.
1298 </dd>
1299 <p></p>
1300 <dt><strong>$iow = $iow-&gt;stop</strong><br />
1301 </dt>
1302 <dd>
1303 Stop watching for events on the given filehandle.
1304 </dd>
1305 <p></p></dl>
1306 <p>
1307 </p>
1308 <hr />
1309 <h1><a name="environment">ENVIRONMENT</a></h1>
1310 <p>
1311 </p>
1312 <h2><a name="urxvt_perl_verbosity">URXVT_PERL_VERBOSITY</a></h2>
1313 <p>This variable controls the verbosity level of the perl extension. Higher
1314 numbers indicate more verbose output.</p>
1315 <dl>
1316 <dt><strong><a name="item__3d_3d_0__2d_fatal_messages">== 0 - fatal messages</a></strong><br />
1317 </dt>
1318 <dt><strong><a name="item__3e_3d_3__2d_script_loading_and_management">&gt;= 3 - script loading and management</a></strong><br />
1319 </dt>
1320 <dt><strong><a name="item__3e_3d10__2d_all_events_received">&gt;=10 - all events received</a></strong><br />
1321 </dt>
1322 </dl>
1323 <p>
1324 </p>
1325 <hr />
1326 <h1><a name="author">AUTHOR</a></h1>
1327 <pre>
1328 Marc Lehmann &lt;pcg@goof.com&gt;
1329 <a href="http://software.schmorp.de/pkg/rxvt-unicode">http://software.schmorp.de/pkg/rxvt-unicode</a></pre>
1330
1331 </body>
1332
1333 </html>