ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/doc/rxvtperl.3.html
Revision: 1.31
Committed: Tue Jan 17 16:22:41 2006 UTC (18 years, 5 months ago) by root
Content type: text/html
Branch: MAIN
Changes since 1.30: +28 -9 lines
Log Message:
*** empty log message ***

File Contents

# Content
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 and further clicks). Right
91 now, it tries to select words, urls and complete shell-quoted
92 arguments, which is very convenient, too, if your <em>ls</em> supports
93 <code>--quoting-style=shell</code>.
94 </dd>
95 <dd>
96 <p>A double-click usually selects the word under the cursor, further clicks
97 will enlarge the selection.</p>
98 </dd>
99 <dd>
100 <p>The selection works by trying to match a number of regexes and displaying
101 them in increasing order of length. You can add your own regexes by
102 specifying resources of the form:</p>
103 </dd>
104 <dd>
105 <pre>
106 URxvt.selection.pattern-0: perl-regex
107 URxvt.selection.pattern-1: perl-regex
108 ...</pre>
109 </dd>
110 <dd>
111 <p>The index number (0, 1...) must not have any holes, and each regex must
112 contain at least one pair of capturing parentheses, which will be used for
113 the match. For example, the followign adds a regex that matches everything
114 between two vertical bars:</p>
115 </dd>
116 <dd>
117 <pre>
118 URxvt.selection.pattern-0: \\|([^|]+)\\|</pre>
119 </dd>
120 <dd>
121 <p>You can look at the source of the selection extension to see more
122 interesting uses, such as parsing a line from beginning to end.</p>
123 </dd>
124 <dd>
125 <p>This extension also offers following bindable keyboard commands:</p>
126 </dd>
127 <dl>
128 <dt><strong><a name="item_rot13">rot13</a></strong><br />
129 </dt>
130 <dd>
131 Rot-13 the selection when activated. Used via keyboard trigger:
132 </dd>
133 <dd>
134 <pre>
135 URxvt.keysym.C-M-r: perl:selection:rot13</pre>
136 </dd>
137 <p></p>
138 <dt><strong><a name="item_remote_2dpastebin">remote-pastebin</a></strong><br />
139 </dt>
140 <dd>
141 Upload the selection as textfile to a remote site.
142 </dd>
143 <dd>
144 <pre>
145 URxvt.keysym.C-M-e: perl:selection:remote-pastebin</pre>
146 </dd>
147 <dd>
148 <p>To set the command to upload the file set this resource:</p>
149 </dd>
150 <dd>
151 <pre>
152 URxvt.selection-pastebin-cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.</pre>
153 </dd>
154 <dd>
155 <p>The % is the placeholder for the textfile. The name of the textfile is the hex encoded
156 md5 sum of the selection.
157 After an successful upload the selection will be replaced by the following url
158 (the % is the placeholder for the filename):</p>
159 </dd>
160 <dd>
161 <pre>
162 URxvt.selection-pastebin-url: <a href="http://www.ta-sa.org/files/txt/%">http://www.ta-sa.org/files/txt/%</a></pre>
163 </dd>
164 <p></p></dl>
165 <dt><strong><a name="item_popup">option-popup (enabled by default)</a></strong><br />
166 </dt>
167 <dd>
168 Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
169 runtime.
170 </dd>
171 <p></p>
172 <dt><strong>selection-popup (enabled by default)</strong><br />
173 </dt>
174 <dd>
175 Binds a popup menu to Ctrl-Button3 that lets you convert the selection
176 text into various other formats/action (such as uri unescaping, perl
177 evalution, web-browser starting etc.), depending on content.
178 </dd>
179 <p></p>
180 <dt><strong><a name="item_searchable_2dscrollback_3chotkey_3e__28enabled_by_">searchable-scrollback&lt;hotkey&gt; (enabled by default)</a></strong><br />
181 </dt>
182 <dd>
183 Adds regex search functionality to the scrollback buffer, triggered
184 by a hotkey (default: <code>M-s</code>). While in search mode, normal terminal
185 input/output is suspended and a regex is displayed at the bottom of the
186 screen.
187 </dd>
188 <dd>
189 <p>Inputting characters appends them to the regex and continues incremental
190 search. <code>BackSpace</code> removes a character from the regex, <code>Up</code> and <code>Down</code>
191 search upwards/downwards in the scrollback buffer, <code>End</code> jumps to the
192 bottom. <code>Escape</code> leaves search mode and returns to the point where search
193 was started, while <code>Enter</code> or <code>Return</code> stay at the current position and
194 additionally stores the first match in the current line into the primary
195 selection.</p>
196 </dd>
197 <p></p>
198 <dt><strong><a name="item_selection_2dautotransform">selection-autotransform</a></strong><br />
199 </dt>
200 <dd>
201 This selection allows you to do automatic transforms on a selection
202 whenever a selection is made.
203 </dd>
204 <dd>
205 <p>It works by specifying perl snippets (most useful is a single <code>s///</code>
206 operator) that modify <code>$_</code> as resources:</p>
207 </dd>
208 <dd>
209 <pre>
210 URxvt.selection-autotransform.0: transform
211 URxvt.selection-autotransform.1: transform
212 ...</pre>
213 </dd>
214 <dd>
215 <p>For example, the following will transform selections of the form
216 <code>filename:number</code>, often seen in compiler messages, into <code>vi +$filename
217 $word</code>:</p>
218 </dd>
219 <dd>
220 <pre>
221 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/</pre>
222 </dd>
223 <dd>
224 <p>And this example matches the same,but replaces it with vi-commands you can
225 paste directly into your (vi :) editor:</p>
226 </dd>
227 <dd>
228 <pre>
229 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/</pre>
230 </dd>
231 <dd>
232 <p>Of course, this can be modified to suit your needs and your editor :)</p>
233 </dd>
234 <dd>
235 <p>To expand the example above to typical perl error messages (``XXX at
236 FILENAME line YYY.''), you need a slightly more elaborate solution:</p>
237 </dd>
238 <dd>
239 <pre>
240 URxvt.selection.pattern-0: ( at .*? line \\d+\\.)
241 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/</pre>
242 </dd>
243 <dd>
244 <p>The first line tells the selection code to treat the unchanging part of
245 every error message as a selection pattern, and the second line transforms
246 the message into vi commands to load the file.</p>
247 </dd>
248 <p></p>
249 <dt><strong><a name="item_mark_2durls">mark-urls</a></strong><br />
250 </dt>
251 <dd>
252 Uses per-line display filtering (<code>on_line_update</code>) to underline urls and
253 make them clickable. When middle-clicked, the program specified in the
254 resource <code>urlLauncher</code> (default <code>x-www-browser</code>) will be started with
255 the URL as first argument.
256 </dd>
257 <p></p>
258 <dt><strong><a name="item_block_2dgraphics_2dto_2dascii">block-graphics-to-ascii</a></strong><br />
259 </dt>
260 <dd>
261 A not very useful example of filtering all text output to the terminal,
262 by replacing all line-drawing characters (U+2500 .. U+259F) by a
263 similar-looking ascii character.
264 </dd>
265 <p></p>
266 <dt><strong><a name="item_digital_2dclock">digital-clock</a></strong><br />
267 </dt>
268 <dd>
269 Displays a digital clock using the built-in overlay.
270 </dd>
271 <p></p>
272 <dt><strong><a name="item_example_2drefresh_2dhooks">example-refresh-hooks</a></strong><br />
273 </dt>
274 <dd>
275 Displays a very simple digital clock in the upper right corner of the
276 window. Illustrates overwriting the refresh callbacks to create your own
277 overlays or changes.
278 </dd>
279 <p></p></dl>
280 <p>
281 </p>
282 <hr />
283 <h1><a name="api_documentation">API DOCUMENTATION</a></h1>
284 <p>
285 </p>
286 <h2><a name="general_api_considerations">General API Considerations</a></h2>
287 <p>All objects (such as terminals, time watchers etc.) are typical
288 reference-to-hash objects. The hash can be used to store anything you
289 like. All members starting with an underscore (such as <code>_ptr</code> or
290 <code>_hook</code>) are reserved for internal uses and <strong>MUST NOT</strong> be accessed or
291 modified).</p>
292 <p>When objects are destroyed on the C++ side, the perl object hashes are
293 emptied, so its best to store related objects such as time watchers and
294 the like inside the terminal object so they get destroyed as soon as the
295 terminal is destroyed.</p>
296 <p>Argument names also often indicate the type of a parameter. Here are some
297 hints on what they mean:</p>
298 <dl>
299 <dt><strong><a name="item__24text">$text</a></strong><br />
300 </dt>
301 <dd>
302 Rxvt-unicodes special way of encoding text, where one ``unicode'' character
303 always represents one screen cell. See <a href="#item_row_t">ROW_t</a> for a discussion of this format.
304 </dd>
305 <p></p>
306 <dt><strong><a name="item__24string">$string</a></strong><br />
307 </dt>
308 <dd>
309 A perl text string, with an emphasis on <em>text</em>. It can store all unicode
310 characters and is to be distinguished with text encoded in a specific
311 encoding (often locale-specific) and binary data.
312 </dd>
313 <p></p>
314 <dt><strong><a name="item__24octets">$octets</a></strong><br />
315 </dt>
316 <dd>
317 Either binary data or - more common - a text string encoded in a
318 locale-specific way.
319 </dd>
320 <p></p></dl>
321 <p>
322 </p>
323 <h2><a name="extension_objects">Extension Objects</a></h2>
324 <p>Very perl extension is a perl class. A separate perl object is created
325 for each terminal and each extension and passed as the first parameter to
326 hooks. So extensions can use their <code>$self</code> object without having to think
327 about other extensions, with the exception of methods and members that
328 begin with an underscore character <code>_</code>: these are reserved for internal
329 use.</p>
330 <p>Although it isn't a <code>urxvt::term</code> object, you can call all methods of the
331 <code>urxvt::term</code> class on this object.</p>
332 <p>It has the following methods and data members:</p>
333 <dl>
334 <dt><strong><a name="item__24urxvt_term__3d__24self_2d_3e_7bterm_7d">$urxvt_term = $self-&gt;{term}</a></strong><br />
335 </dt>
336 <dd>
337 Returns the <code>urxvt::term</code> object associated with this instance of the
338 extension. This member <em>must not</em> be changed in any way.
339 </dd>
340 <p></p>
341 <dt><strong><a name="item_enable">$self-&gt;enable ($hook_name =&gt; $cb, [$hook_name =&gt; $cb..])</a></strong><br />
342 </dt>
343 <dd>
344 Dynamically enable the given hooks (named without the <code>on_</code> prefix) for
345 this extension, replacing any previous hook. This is useful when you want
346 to overwrite time-critical hooks only temporarily.
347 </dd>
348 <p></p>
349 <dt><strong><a name="item_disable">$self-&gt;disable ($hook_name[, $hook_name..])</a></strong><br />
350 </dt>
351 <dd>
352 Dynamically disable the given hooks.
353 </dd>
354 <p></p></dl>
355 <p>
356 </p>
357 <h2><a name="hooks">Hooks</a></h2>
358 <p>The following subroutines can be declared in extension files, and will be
359 called whenever the relevant event happens.</p>
360 <p>The first argument passed to them is an extension oject as described in
361 the in the <code>Extension Objects</code> section.</p>
362 <p><strong>All</strong> of these hooks must return a boolean value. If it is true, then the
363 event counts as being <em>consumed</em>, and the invocation of other hooks is
364 skipped, and the relevant action might not be carried out by the C++ code.</p>
365 <p><em>When in doubt, return a false value (preferably <code>()</code>). </em>&gt;</p>
366 <dl>
367 <dt><strong><a name="item_on_init__24term">on_init $term</a></strong><br />
368 </dt>
369 <dd>
370 Called after a new terminal object has been initialized, but before
371 windows are created or the command gets run. Most methods are unsafe to
372 call or deliver senseless data, as terminal size and other characteristics
373 have not yet been determined. You can safely query and change resources,
374 though.
375 </dd>
376 <p></p>
377 <dt><strong><a name="item_on_reset__24term">on_reset $term</a></strong><br />
378 </dt>
379 <dd>
380 Called after the screen is ``reset'' for any reason, such as resizing or
381 control sequences. Here is where you can react on changes to size-related
382 variables.
383 </dd>
384 <p></p>
385 <dt><strong><a name="item_on_start__24term">on_start $term</a></strong><br />
386 </dt>
387 <dd>
388 Called at the very end of initialisation of a new terminal, just before
389 returning to the mainloop.
390 </dd>
391 <p></p>
392 <dt><strong><a name="item_on_sel_make__24term_2c__24eventtime">on_sel_make $term, $eventtime</a></strong><br />
393 </dt>
394 <dd>
395 Called whenever a selection has been made by the user, but before the
396 selection text is copied, so changes to the beginning, end or type of the
397 selection will be honored.
398 </dd>
399 <dd>
400 <p>Returning a true value aborts selection making by urxvt, in which case you
401 have to make a selection yourself by calling <a href="#item_selection_grab"><code>$term-&gt;selection_grab</code></a>.</p>
402 </dd>
403 <p></p>
404 <dt><strong><a name="item_on_sel_grab__24term_2c__24eventtime">on_sel_grab $term, $eventtime</a></strong><br />
405 </dt>
406 <dd>
407 Called whenever a selection has been copied, but before the selection is
408 requested from the server. The selection text can be queried and changed
409 by calling <a href="#item_selection"><code>$term-&gt;selection</code></a>.
410 </dd>
411 <dd>
412 <p>Returning a true value aborts selection grabbing. It will still be hilighted.</p>
413 </dd>
414 <p></p>
415 <dt><strong><a name="item_on_sel_extend__24term">on_sel_extend $term</a></strong><br />
416 </dt>
417 <dd>
418 Called whenever the user tries to extend the selection (e.g. with a double
419 click) and is either supposed to return false (normal operation), or
420 should extend the selection itelf and return true to suppress the built-in
421 processing. This can happen multiple times, as long as the callback
422 returns true, it will be called on every further click by the user and is
423 supposed to enlarge the selection more and more, if possible.
424 </dd>
425 <dd>
426 <p>See the <em>selection</em> example extension.</p>
427 </dd>
428 <p></p>
429 <dt><strong><a name="item_on_view_change__24term_2c__24offset">on_view_change $term, $offset</a></strong><br />
430 </dt>
431 <dd>
432 Called whenever the view offset changes, i..e the user or program
433 scrolls. Offset <code>0</code> means display the normal terminal, positive values
434 show this many lines of scrollback.
435 </dd>
436 <p></p>
437 <dt><strong><a name="item_on_scroll_back__24term_2c__24lines_2c__24saved">on_scroll_back $term, $lines, $saved</a></strong><br />
438 </dt>
439 <dd>
440 Called whenever lines scroll out of the terminal area into the scrollback
441 buffer. <code>$lines</code> is the number of lines scrolled out and may be larger
442 than the scroll back buffer or the terminal.
443 </dd>
444 <dd>
445 <p>It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
446 $nrow - 1) represent the lines to be scrolled out). <code>$saved</code> is the total
447 number of lines that will be in the scrollback buffer.</p>
448 </dd>
449 <p></p>
450 <dt><strong><a name="item_on_osc_seq__24term_2c__24string">on_osc_seq $term, $string</a></strong><br />
451 </dt>
452 <dd>
453 Called whenever the <strong>ESC ] 777 ; string ST</strong> command sequence (OSC =
454 operating system command) is processed. Cursor position and other state
455 information is up-to-date when this happens. For interoperability, the
456 string should start with the extension name and a colon, to distinguish
457 it from commands for other extensions, and this might be enforced in the
458 future.
459 </dd>
460 <dd>
461 <p>Be careful not ever to trust (in a security sense) the data you receive,
462 as its source can not easily be controleld (e-mail content, messages from
463 other users on the same system etc.).</p>
464 </dd>
465 <p></p>
466 <dt><strong><a name="item_on_add_lines__24term_2c__24string">on_add_lines $term, $string</a></strong><br />
467 </dt>
468 <dd>
469 Called whenever text is about to be output, with the text as argument. You
470 can filter/change and output the text yourself by returning a true value
471 and calling <a href="#item_scr_add_lines"><code>$term-&gt;scr_add_lines</code></a> yourself. Please note that this
472 might be very slow, however, as your hook is called for <strong>all</strong> text being
473 output.
474 </dd>
475 <p></p>
476 <dt><strong><a name="item_on_tt_write__24term_2c__24octets">on_tt_write $term, $octets</a></strong><br />
477 </dt>
478 <dd>
479 Called whenever some data is written to the tty/pty and can be used to
480 suppress or filter tty input.
481 </dd>
482 <p></p>
483 <dt><strong><a name="item_on_line_update__24term_2c__24row">on_line_update $term, $row</a></strong><br />
484 </dt>
485 <dd>
486 Called whenever a line was updated or changed. Can be used to filter
487 screen output (e.g. underline urls or other useless stuff). Only lines
488 that are being shown will be filtered, and, due to performance reasons,
489 not always immediately.
490 </dd>
491 <dd>
492 <p>The row number is always the topmost row of the line if the line spans
493 multiple rows.</p>
494 </dd>
495 <dd>
496 <p>Please note that, if you change the line, then the hook might get called
497 later with the already-modified line (e.g. if unrelated parts change), so
498 you cannot just toggle rendition bits, but only set them.</p>
499 </dd>
500 <p></p>
501 <dt><strong><a name="item_on_refresh_begin__24term">on_refresh_begin $term</a></strong><br />
502 </dt>
503 <dd>
504 Called just before the screen gets redrawn. Can be used for overlay
505 or similar effects by modify terminal contents in refresh_begin, and
506 restoring them in refresh_end. The built-in overlay and selection display
507 code is run after this hook, and takes precedence.
508 </dd>
509 <p></p>
510 <dt><strong><a name="item_on_refresh_end__24term">on_refresh_end $term</a></strong><br />
511 </dt>
512 <dd>
513 Called just after the screen gets redrawn. See <code>on_refresh_begin</code>.
514 </dd>
515 <p></p>
516 <dt><strong><a name="item_on_keyboard_command__24term_2c__24string">on_keyboard_command $term, $string</a></strong><br />
517 </dt>
518 <dd>
519 Called whenever the user presses a key combination that has a
520 <code>perl:string</code> action bound to it (see description of the <strong>keysym</strong>
521 resource in the <code>rxvt(1)</code> manpage).
522 </dd>
523 <p></p>
524 <dt><strong><a name="item_on_x_event__24term_2c__24event">on_x_event $term, $event</a></strong><br />
525 </dt>
526 <dd>
527 Called on every X event received on the vt window (and possibly other
528 windows). Should only be used as a last resort. Most event structure
529 members are not passed.
530 </dd>
531 <p></p>
532 <dt><strong><a name="item_on_focus_in__24term">on_focus_in $term</a></strong><br />
533 </dt>
534 <dd>
535 Called whenever the window gets the keyboard focus, before rxvt-unicode
536 does focus in processing.
537 </dd>
538 <p></p>
539 <dt><strong><a name="item_on_focus_out__24term">on_focus_out $term</a></strong><br />
540 </dt>
541 <dd>
542 Called wheneever the window loses keyboard focus, before rxvt-unicode does
543 focus out processing.
544 </dd>
545 <p></p>
546 <dt><strong><a name="item_on_key_press__24term_2c__24event_2c__24keysym_2c__">on_key_press $term, $event, $keysym, $octets</a></strong><br />
547 </dt>
548 <dt><strong><a name="item_on_key_release__24term_2c__24event_2c__24keysym">on_key_release $term, $event, $keysym</a></strong><br />
549 </dt>
550 <dt><strong><a name="item_on_button_press__24term_2c__24event">on_button_press $term, $event</a></strong><br />
551 </dt>
552 <dt><strong><a name="item_on_button_release__24term_2c__24event">on_button_release $term, $event</a></strong><br />
553 </dt>
554 <dt><strong><a name="item_on_motion_notify__24term_2c__24event">on_motion_notify $term, $event</a></strong><br />
555 </dt>
556 <dt><strong><a name="item_on_map_notify__24term_2c__24event">on_map_notify $term, $event</a></strong><br />
557 </dt>
558 <dt><strong><a name="item_on_unmap_notify__24term_2c__24event">on_unmap_notify $term, $event</a></strong><br />
559 </dt>
560 <dd>
561 Called whenever the corresponding X event is received for the terminal If
562 the hook returns true, then the even will be ignored by rxvt-unicode.
563 </dd>
564 <dd>
565 <p>The event is a hash with most values as named by Xlib (see the XEvent
566 manpage), with the additional members <code>row</code> and <code>col</code>, which are the row
567 and column under the mouse cursor.</p>
568 </dd>
569 <dd>
570 <p><code>on_key_press</code> additionally receives the string rxvt-unicode would
571 output, if any, in locale-specific encoding.</p>
572 </dd>
573 <dd>
574 <p>subwindow.</p>
575 </dd>
576 <p></p></dl>
577 <p>
578 </p>
579 <h2><a name="variables_in_the_urxvt_package">Variables in the <code>urxvt</code> Package</a></h2>
580 <dl>
581 <dt><strong><a name="item__24urxvt_3a_3alibdir">$urxvt::LIBDIR</a></strong><br />
582 </dt>
583 <dd>
584 The rxvt-unicode library directory, where, among other things, the perl
585 modules and scripts are stored.
586 </dd>
587 <p></p>
588 <dt><strong><a name="item__24urxvt_3a_3aresclass_2c__24urxvt_3a_3aresclass">$urxvt::RESCLASS, $urxvt::RESCLASS</a></strong><br />
589 </dt>
590 <dd>
591 The resource class and name rxvt-unicode uses to look up X resources.
592 </dd>
593 <p></p>
594 <dt><strong><a name="item__24urxvt_3a_3arxvtname">$urxvt::RXVTNAME</a></strong><br />
595 </dt>
596 <dd>
597 The basename of the installed binaries, usually <code>urxvt</code>.
598 </dd>
599 <p></p>
600 <dt><strong><a name="item__24urxvt_3a_3aterm">$urxvt::TERM</a></strong><br />
601 </dt>
602 <dd>
603 The current terminal. This variable stores the current <code>urxvt::term</code>
604 object, whenever a callback/hook is executing.
605 </dd>
606 <p></p></dl>
607 <p>
608 </p>
609 <h2><a name="functions_in_the_urxvt_package">Functions in the <code>urxvt</code> Package</a></h2>
610 <dl>
611 <dt><strong><a name="item_urxvt_3a_3afatal__24errormessage">urxvt::fatal $errormessage</a></strong><br />
612 </dt>
613 <dd>
614 Fatally aborts execution with the given error message. Avoid at all
615 costs! The only time this is acceptable is when the terminal process
616 starts up.
617 </dd>
618 <p></p>
619 <dt><strong><a name="item_urxvt_3a_3awarn__24string">urxvt::warn $string</a></strong><br />
620 </dt>
621 <dd>
622 Calls <code>rxvt_warn</code> with the given string which should not include a
623 newline. The module also overwrites the <code>warn</code> builtin with a function
624 that calls this function.
625 </dd>
626 <dd>
627 <p>Using this function has the advantage that its output ends up in the
628 correct place, e.g. on stderr of the connecting urxvtc client.</p>
629 </dd>
630 <dd>
631 <p>Messages have a size limit of 1023 bytes currently.</p>
632 </dd>
633 <p></p>
634 <dt><strong><a name="item__24time__3d_urxvt_3a_3anow">$time = urxvt::NOW</a></strong><br />
635 </dt>
636 <dd>
637 Returns the ``current time'' (as per the event loop).
638 </dd>
639 <p></p>
640 <dt><strong><a name="item_urxvt_3a_3acurrenttime">urxvt::CurrentTime</a></strong><br />
641 </dt>
642 <dt><strong><a name="item_urxvt_3a_3ashiftmask_2c_lockmask_2c_controlmask_2c">urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
643 Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
644 Button4Mask, Button5Mask, AnyModifier</a></strong><br />
645 </dt>
646 <dt><strong><a name="item_urxvt_3a_3anoeventmask_2c_keypressmask_2c_keyrelea">urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
647 ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
648 PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
649 Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
650 KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
651 ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
652 FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask</a></strong><br />
653 </dt>
654 <dt><strong><a name="item_urxvt_3a_3akeypress_2c_keyrelease_2c_buttonpress_2">urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
655 EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
656 GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
657 UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
658 ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
659 CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
660 SelectionNotify, ColormapNotify, ClientMessage, MappingNotify</a></strong><br />
661 </dt>
662 <dd>
663 Various constants for use in X calls and event processing.
664 </dd>
665 <p></p></dl>
666 <p>
667 </p>
668 <h2><a name="rendition">RENDITION</a></h2>
669 <p>Rendition bitsets contain information about colour, font, font styles and
670 similar information for each screen cell.</p>
671 <p>The following ``macros'' deal with changes in rendition sets. You should
672 never just create a bitset, you should always modify an existing one,
673 as they contain important information required for correct operation of
674 rxvt-unicode.</p>
675 <dl>
676 <dt><strong><a name="item__24rend__3d_urxvt_3a_3adefault_rstyle">$rend = urxvt::DEFAULT_RSTYLE</a></strong><br />
677 </dt>
678 <dd>
679 Returns the default rendition, as used when the terminal is starting up or
680 being reset. Useful as a base to start when creating renditions.
681 </dd>
682 <p></p>
683 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aoverlay_rstyle">$rend = urxvt::OVERLAY_RSTYLE</a></strong><br />
684 </dt>
685 <dd>
686 Return the rendition mask used for overlays by default.
687 </dd>
688 <p></p>
689 <dt><strong><a name="item__24rendbit__3d_urxvt_3a_3ars_bold_2c_rs_italic_2c_">$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline</a></strong><br />
690 </dt>
691 <dd>
692 Return the bit that enabled bold, italic, blink, reverse-video and
693 underline, respectively. To enable such a style, just logically OR it into
694 the bitset.
695 </dd>
696 <p></p>
697 <dt><strong><a name="item__24foreground__3d_urxvt_3a_3aget_basefg__24rend">$foreground = urxvt::GET_BASEFG $rend</a></strong><br />
698 </dt>
699 <dt><strong><a name="item__24background__3d_urxvt_3a_3aget_basebg__24rend">$background = urxvt::GET_BASEBG $rend</a></strong><br />
700 </dt>
701 <dd>
702 Return the foreground/background colour index, respectively.
703 </dd>
704 <p></p>
705 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_fgcolor__24rend_2c__24n">$rend = urxvt::SET_FGCOLOR $rend, $new_colour</a></strong><br />
706 </dt>
707 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_bgcolor__24rend_2c__24n">$rend = urxvt::SET_BGCOLOR $rend, $new_colour</a></strong><br />
708 </dt>
709 <dd>
710 Replace the foreground/background colour in the rendition mask with the
711 specified one.
712 </dd>
713 <p></p>
714 <dt><strong><a name="item__24value__3d_urxvt_3a_3aget_custom__24rend">$value = urxvt::GET_CUSTOM $rend</a></strong><br />
715 </dt>
716 <dd>
717 Return the ``custom'' value: Every rendition has 5 bits for use by
718 extensions. They can be set and changed as you like and are initially
719 zero.
720 </dd>
721 <p></p>
722 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_custom__24rend_2c__24ne">$rend = urxvt::SET_CUSTOM $rend, $new_value</a></strong><br />
723 </dt>
724 <dd>
725 Change the custom value.
726 </dd>
727 <p></p></dl>
728 <p>
729 </p>
730 <h2><a name="the_urxvt__anyevent_class">The <code>urxvt::anyevent</code> Class</a></h2>
731 <p>The sole purpose of this class is to deliver an interface to the
732 <code>AnyEvent</code> module - any module using it will work inside urxvt without
733 further programming. The only exception is that you cannot wait on
734 condition variables, but non-blocking condvar use is ok. What this means
735 is that you cannot use blocking APIs, but the non-blocking variant should
736 work.</p>
737 <p>
738 </p>
739 <h2><a name="the_urxvt__term_class">The <code>urxvt::term</code> Class</a></h2>
740 <dl>
741 <dt><strong><a name="item__24term__3d_new_urxvt_3a_3aterm__24envhashref_2c__">$term = new urxvt::term $envhashref, $rxvtname, [arg...]</a></strong><br />
742 </dt>
743 <dd>
744 Creates a new terminal, very similar as if you had started it with system
745 <code>$rxvtname, arg...</code>. <code>$envhashref</code> must be a reference to a <code>%ENV</code>-like
746 hash which defines the environment of the new terminal.
747 </dd>
748 <dd>
749 <p>Croaks (and probably outputs an error message) if the new instance
750 couldn't be created. Returns <code>undef</code> if the new instance didn't
751 initialise perl, and the terminal object otherwise. The <code>init</code> and
752 <a href="#item_start"><code>start</code></a> hooks will be called during this call.</p>
753 </dd>
754 <p></p>
755 <dt><strong><a name="item_destroy">$term-&gt;destroy</a></strong><br />
756 </dt>
757 <dd>
758 Destroy the terminal object (close the window, free resources
759 etc.). Please note that rxvt will not exit as long as any event
760 watchers (timers, io watchers) are still active.
761 </dd>
762 <p></p>
763 <dt><strong><a name="item_option">$isset = $term-&gt;option ($optval[, $set])</a></strong><br />
764 </dt>
765 <dd>
766 Returns true if the option specified by <code>$optval</code> is enabled, and
767 optionally change it. All option values are stored by name in the hash
768 <code>%urxvt::OPTION</code>. Options not enabled in this binary are not in the hash.
769 </dd>
770 <dd>
771 <p>Here is a a likely non-exhaustive list of option names, please see the
772 source file <em>/src/optinc.h</em> to see the actual list:</p>
773 </dd>
774 <dd>
775 <pre>
776 borderLess console cursorBlink cursorUnderline hold iconic insecure
777 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
778 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
779 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
780 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
781 tripleclickwords utmpInhibit visualBell</pre>
782 </dd>
783 <p></p>
784 <dt><strong><a name="item_resource">$value = $term-&gt;resource ($name[, $newval])</a></strong><br />
785 </dt>
786 <dd>
787 Returns the current resource value associated with a given name and
788 optionally sets a new value. Setting values is most useful in the <code>init</code>
789 hook. Unset resources are returned and accepted as <code>undef</code>.
790 </dd>
791 <dd>
792 <p>The new value must be properly encoded to a suitable character encoding
793 before passing it to this method. Similarly, the returned value may need
794 to be converted from the used encoding to text.</p>
795 </dd>
796 <dd>
797 <p>Resource names are as defined in <em>src/rsinc.h</em>. Colours can be specified
798 as resource names of the form <code>color+&lt;index&gt;</code>, e.g. <code>color+5</code>. (will
799 likely change).</p>
800 </dd>
801 <dd>
802 <p>Please note that resource strings will currently only be freed when the
803 terminal is destroyed, so changing options frequently will eat memory.</p>
804 </dd>
805 <dd>
806 <p>Here is a a likely non-exhaustive list of resource names, not all of which
807 are supported in every build, please see the source file <em>/src/rsinc.h</em>
808 to see the actual list:</p>
809 </dd>
810 <dd>
811 <pre>
812 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
813 borderLess color cursorBlink cursorUnderline cutchars delete_key
814 display_name embed ext_bwidth fade font geometry hold iconName
815 imFont imLocale inputMethod insecure int_bwidth intensityStyles
816 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
817 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
818 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
819 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
820 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
821 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
822 shade term_name title transparent transparent_all tripleclickwords
823 utmpInhibit visualBell</pre>
824 </dd>
825 <p></p>
826 <dt><strong><a name="item_x_resource">$value = $term-&gt;x_resource ($pattern)</a></strong><br />
827 </dt>
828 <dd>
829 Returns the X-Resource for the given pattern, excluding the program or
830 class name, i.e. <a href="#item_x_resource"><code>$term-&gt;x_resource (&quot;boldFont&quot;)</code></a> should return the
831 same value as used by this instance of rxvt-unicode. Returns <code>undef</code> if no
832 resource with that pattern exists.
833 </dd>
834 <dd>
835 <p>This method should only be called during the <code>on_start</code> hook, as there is
836 only one resource database per display, and later invocations might return
837 the wrong resources.</p>
838 </dd>
839 <p></p>
840 <dt><strong><a name="item_parse_keysym">$success = $term-&gt;parse_keysym ($keysym_spec, $command_string)</a></strong><br />
841 </dt>
842 <dd>
843 Adds a keymap translation exactly as specified via a resource. See the
844 <code>keysym</code> resource in the <code>rxvt(1)</code> manpage.
845 </dd>
846 <p></p>
847 <dt><strong><a name="item_rstyle">$rend = $term-&gt;rstyle ([$new_rstyle])</a></strong><br />
848 </dt>
849 <dd>
850 Return and optionally change the current rendition. Text that is output by
851 the terminal application will use this style.
852 </dd>
853 <p></p>
854 <dt><strong><a name="item_screen_cur">($row, $col) = $term-&gt;screen_cur ([$row, $col])</a></strong><br />
855 </dt>
856 <dd>
857 Return the current coordinates of the text cursor position and optionally
858 set it (which is usually bad as applications don't expect that).
859 </dd>
860 <p></p>
861 <dt><strong><a name="item_selection_mark">($row, $col) = $term-&gt;selection_mark ([$row, $col])</a></strong><br />
862 </dt>
863 <dt><strong><a name="item_selection_beg">($row, $col) = $term-&gt;selection_beg ([$row, $col])</a></strong><br />
864 </dt>
865 <dt><strong><a name="item_selection_end">($row, $col) = $term-&gt;selection_end ([$row, $col])</a></strong><br />
866 </dt>
867 <dd>
868 Return the current values of the selection mark, begin or end positions,
869 and optionally set them to new values.
870 </dd>
871 <p></p>
872 <dt><strong><a name="item_selection_make">$term-&gt;selection_make ($eventtime[, $rectangular])</a></strong><br />
873 </dt>
874 <dd>
875 Tries to make a selection as set by <a href="#item_selection_beg"><code>selection_beg</code></a> and
876 <a href="#item_selection_end"><code>selection_end</code></a>. If <code>$rectangular</code> is true (default: false), a
877 rectangular selection will be made. This is the prefered function to make
878 a selection.
879 </dd>
880 <p></p>
881 <dt><strong><a name="item_selection_grab">$success = $term-&gt;selection_grab ($eventtime)</a></strong><br />
882 </dt>
883 <dd>
884 Try to request the primary selection text from the server (for example, as
885 set by the next method). No visual feedback will be given. This function
886 is mostly useful from within <code>on_sel_grab</code> hooks.
887 </dd>
888 <p></p>
889 <dt><strong>$oldtext = $term-&gt;selection ([$newtext])</strong><br />
890 </dt>
891 <dd>
892 Return the current selection text and optionally replace it by <code>$newtext</code>.
893 </dd>
894 <p></p>
895 <dt><strong><a name="item_overlay_simple">$term-&gt;overlay_simple ($x, $y, $text)</a></strong><br />
896 </dt>
897 <dd>
898 Create a simple multi-line overlay box. See the next method for details.
899 </dd>
900 <p></p>
901 <dt><strong><a name="item_overlay">$term-&gt;overlay ($x, $y, $width, $height[, $rstyle[, $border]])</a></strong><br />
902 </dt>
903 <dd>
904 Create a new (empty) overlay at the given position with the given
905 width/height. <code>$rstyle</code> defines the initial rendition style
906 (default: <code>OVERLAY_RSTYLE</code>).
907 </dd>
908 <dd>
909 <p>If <code>$border</code> is <code>2</code> (default), then a decorative border will be put
910 around the box.</p>
911 </dd>
912 <dd>
913 <p>If either <code>$x</code> or <code>$y</code> is negative, then this is counted from the
914 right/bottom side, respectively.</p>
915 </dd>
916 <dd>
917 <p>This method returns an urxvt::overlay object. The overlay will be visible
918 as long as the perl object is referenced.</p>
919 </dd>
920 <dd>
921 <p>The methods currently supported on <code>urxvt::overlay</code> objects are:</p>
922 </dd>
923 <dl>
924 <dt><strong><a name="item_set">$overlay-&gt;set ($x, $y, $text, $rend)</a></strong><br />
925 </dt>
926 <dd>
927 Similar to <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> and <a href="#item_row_r"><code>$term-&gt;ROW_r</code></a> in that it puts
928 text in rxvt-unicode's special encoding and an array of rendition values
929 at a specific position inside the overlay.
930 </dd>
931 <p></p>
932 <dt><strong><a name="item_hide">$overlay-&gt;hide</a></strong><br />
933 </dt>
934 <dd>
935 If visible, hide the overlay, but do not destroy it.
936 </dd>
937 <p></p>
938 <dt><strong><a name="item_show">$overlay-&gt;show</a></strong><br />
939 </dt>
940 <dd>
941 If hidden, display the overlay again.
942 </dd>
943 <p></p></dl>
944 <dt><strong>$popup = $term-&gt;popup ($event)</strong><br />
945 </dt>
946 <dd>
947 Creates a new <code>urxvt::popup</code> object that implements a popup menu. The
948 <code>$event</code> <em>must</em> be the event causing the menu to pop up (a button event,
949 currently).
950 </dd>
951 <p></p>
952 <dt><strong><a name="item_strwidth">$cellwidth = $term-&gt;strwidth ($string)</a></strong><br />
953 </dt>
954 <dd>
955 Returns the number of screen-cells this string would need. Correctly
956 accounts for wide and combining characters.
957 </dd>
958 <p></p>
959 <dt><strong><a name="item_locale_encode">$octets = $term-&gt;locale_encode ($string)</a></strong><br />
960 </dt>
961 <dd>
962 Convert the given text string into the corresponding locale encoding.
963 </dd>
964 <p></p>
965 <dt><strong><a name="item_locale_decode">$string = $term-&gt;locale_decode ($octets)</a></strong><br />
966 </dt>
967 <dd>
968 Convert the given locale-encoded octets into a perl string.
969 </dd>
970 <p></p>
971 <dt><strong><a name="item_scr_xor_span">$term-&gt;scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])</a></strong><br />
972 </dt>
973 <dd>
974 XORs the rendition values in the given span with the provided value
975 (default: <code>RS_RVid</code>), which <em>MUST NOT</em> contain font styles. Useful in
976 refresh hooks to provide effects similar to the selection.
977 </dd>
978 <p></p>
979 <dt><strong><a name="item_scr_xor_rect">$term-&gt;scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])</a></strong><br />
980 </dt>
981 <dd>
982 Similar to <a href="#item_scr_xor_span"><code>scr_xor_span</code></a>, but xors a rectangle instead. Trailing
983 whitespace will additionally be xored with the <code>$rstyle2</code>, which defaults
984 to <code>RS_RVid | RS_Uline</code>, which removes reverse video again and underlines
985 it instead. Both styles <em>MUST NOT</em> contain font styles.
986 </dd>
987 <p></p>
988 <dt><strong><a name="item_scr_bell">$term-&gt;scr_bell</a></strong><br />
989 </dt>
990 <dd>
991 Ring the bell!
992 </dd>
993 <p></p>
994 <dt><strong><a name="item_scr_add_lines">$term-&gt;scr_add_lines ($string)</a></strong><br />
995 </dt>
996 <dd>
997 Write the given text string to the screen, as if output by the application
998 running inside the terminal. It may not contain command sequences (escape
999 codes), but is free to use line feeds, carriage returns and tabs. The
1000 string is a normal text string, not in locale-dependent encoding.
1001 </dd>
1002 <dd>
1003 <p>Normally its not a good idea to use this function, as programs might be
1004 confused by changes in cursor position or scrolling. Its useful inside a
1005 <code>on_add_lines</code> hook, though.</p>
1006 </dd>
1007 <p></p>
1008 <dt><strong><a name="item_cmd_parse">$term-&gt;cmd_parse ($octets)</a></strong><br />
1009 </dt>
1010 <dd>
1011 Similar to <a href="#item_scr_add_lines"><code>scr_add_lines</code></a>, but the argument must be in the
1012 locale-specific encoding of the terminal and can contain command sequences
1013 (escape codes) that will be interpreted.
1014 </dd>
1015 <p></p>
1016 <dt><strong><a name="item_tt_write">$term-&gt;tt_write ($octets)</a></strong><br />
1017 </dt>
1018 <dd>
1019 Write the octets given in <code>$data</code> to the tty (i.e. as program input). To
1020 pass characters instead of octets, you should convert your strings first
1021 to the locale-specific encoding using <a href="#item_locale_encode"><code>$term-&gt;locale_encode</code></a>.
1022 </dd>
1023 <p></p>
1024 <dt><strong><a name="item_pty_ev_events">$old_events = $term-&gt;pty_ev_events ([$new_events])</a></strong><br />
1025 </dt>
1026 <dd>
1027 Replaces the event mask of the pty watcher by the given event mask. Can
1028 be used to suppress input and output handling to the pty/tty. See the
1029 description of <a href="#item_events"><code>urxvt::timer-&gt;events</code></a>. Make sure to always restore
1030 the previous value.
1031 </dd>
1032 <p></p>
1033 <dt><strong><a name="item_parent">$windowid = $term-&gt;parent</a></strong><br />
1034 </dt>
1035 <dd>
1036 Return the window id of the toplevel window.
1037 </dd>
1038 <p></p>
1039 <dt><strong><a name="item_vt">$windowid = $term-&gt;vt</a></strong><br />
1040 </dt>
1041 <dd>
1042 Return the window id of the terminal window.
1043 </dd>
1044 <p></p>
1045 <dt><strong><a name="item_vt_emask_add">$term-&gt;vt_emask_add ($x_event_mask)</a></strong><br />
1046 </dt>
1047 <dd>
1048 Adds the specified events to the vt event mask. Useful e.g. when you want
1049 to receive pointer events all the times:
1050 </dd>
1051 <dd>
1052 <pre>
1053 $term-&gt;vt_emask_add (urxvt::PointerMotionMask);</pre>
1054 </dd>
1055 <p></p>
1056 <dt><strong><a name="item_width">$window_width = $term-&gt;width</a></strong><br />
1057 </dt>
1058 <dt><strong><a name="item_height">$window_height = $term-&gt;height</a></strong><br />
1059 </dt>
1060 <dt><strong><a name="item_fwidth">$font_width = $term-&gt;fwidth</a></strong><br />
1061 </dt>
1062 <dt><strong><a name="item_fheight">$font_height = $term-&gt;fheight</a></strong><br />
1063 </dt>
1064 <dt><strong><a name="item_fbase">$font_ascent = $term-&gt;fbase</a></strong><br />
1065 </dt>
1066 <dt><strong><a name="item_nrow">$terminal_rows = $term-&gt;nrow</a></strong><br />
1067 </dt>
1068 <dt><strong><a name="item_ncol">$terminal_columns = $term-&gt;ncol</a></strong><br />
1069 </dt>
1070 <dt><strong><a name="item_focus">$has_focus = $term-&gt;focus</a></strong><br />
1071 </dt>
1072 <dt><strong><a name="item_mapped">$is_mapped = $term-&gt;mapped</a></strong><br />
1073 </dt>
1074 <dt><strong><a name="item_savelines">$max_scrollback = $term-&gt;saveLines</a></strong><br />
1075 </dt>
1076 <dt><strong><a name="item_total_rows">$nrow_plus_saveLines = $term-&gt;total_rows</a></strong><br />
1077 </dt>
1078 <dt><strong><a name="item_top_row">$topmost_scrollback_row = $term-&gt;top_row</a></strong><br />
1079 </dt>
1080 <dd>
1081 Return various integers describing terminal characteristics.
1082 </dd>
1083 <p></p>
1084 <dt><strong><a name="item_display_id">$x_display = $term-&gt;display_id</a></strong><br />
1085 </dt>
1086 <dd>
1087 Return the DISPLAY used by rxvt-unicode.
1088 </dd>
1089 <p></p>
1090 <dt><strong><a name="item_locale">$lc_ctype = $term-&gt;locale</a></strong><br />
1091 </dt>
1092 <dd>
1093 Returns the LC_CTYPE category string used by this rxvt-unicode.
1094 </dd>
1095 <p></p>
1096 <dt><strong><a name="item_env">$env = $term-&gt;env</a></strong><br />
1097 </dt>
1098 <dd>
1099 Returns a copy of the environment in effect for the terminal as a hashref
1100 similar to <code>\%ENV</code>.
1101 </dd>
1102 <p></p>
1103 <dt><strong><a name="item_modlevel3mask">$modifiermask = $term-&gt;ModLevel3Mask</a></strong><br />
1104 </dt>
1105 <dt><strong><a name="item_modmetamask">$modifiermask = $term-&gt;ModMetaMask</a></strong><br />
1106 </dt>
1107 <dt><strong><a name="item_modnumlockmask">$modifiermask = $term-&gt;ModNumLockMask</a></strong><br />
1108 </dt>
1109 <dd>
1110 Return the modifier masks corresponding to the ``ISO Level 3 Shift'' (often
1111 AltGr), the meta key (often Alt) and the num lock key, if applicable.
1112 </dd>
1113 <p></p>
1114 <dt><strong><a name="item_view_start">$view_start = $term-&gt;view_start ([$newvalue])</a></strong><br />
1115 </dt>
1116 <dd>
1117 Returns the row number of the topmost displayed line. Maximum value is
1118 <code>0</code>, which displays the normal terminal contents. Lower values scroll
1119 this many lines into the scrollback buffer.
1120 </dd>
1121 <p></p>
1122 <dt><strong><a name="item_want_refresh">$term-&gt;want_refresh</a></strong><br />
1123 </dt>
1124 <dd>
1125 Requests a screen refresh. At the next opportunity, rxvt-unicode will
1126 compare the on-screen display with its stored representation. If they
1127 differ, it redraws the differences.
1128 </dd>
1129 <dd>
1130 <p>Used after changing terminal contents to display them.</p>
1131 </dd>
1132 <p></p>
1133 <dt><strong><a name="item_row_t">$text = $term-&gt;ROW_t ($row_number[, $new_text[, $start_col]])</a></strong><br />
1134 </dt>
1135 <dd>
1136 Returns the text of the entire row with number <code>$row_number</code>. Row <code>0</code>
1137 is the topmost terminal line, row <code>$term-&gt;$ncol-1</code> is the bottommost
1138 terminal line. The scrollback buffer starts at line <code>-1</code> and extends to
1139 line <code>-$term-&gt;nsaved</code>. Nothing will be returned if a nonexistent line
1140 is requested.
1141 </dd>
1142 <dd>
1143 <p>If <code>$new_text</code> is specified, it will replace characters in the current
1144 line, starting at column <code>$start_col</code> (default <code>0</code>), which is useful
1145 to replace only parts of a line. The font index in the rendition will
1146 automatically be updated.</p>
1147 </dd>
1148 <dd>
1149 <p><a href="#item__24text"><code>$text</code></a> is in a special encoding: tabs and wide characters that use more
1150 than one cell when displayed are padded with urxvt::NOCHAR characters
1151 (<code>chr 65535</code>). Characters with combining characters and other characters
1152 that do not fit into the normal tetx encoding will be replaced with
1153 characters in the private use area.</p>
1154 </dd>
1155 <dd>
1156 <p>You have to obey this encoding when changing text. The advantage is
1157 that <code>substr</code> and similar functions work on screen cells and not on
1158 characters.</p>
1159 </dd>
1160 <dd>
1161 <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>
1162 can be used to convert normal strings into this encoding and vice versa.</p>
1163 </dd>
1164 <p></p>
1165 <dt><strong><a name="item_row_r">$rend = $term-&gt;ROW_r ($row_number[, $new_rend[, $start_col]])</a></strong><br />
1166 </dt>
1167 <dd>
1168 Like <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a>, but returns an arrayref with rendition
1169 bitsets. Rendition bitsets contain information about colour, font, font
1170 styles and similar information. See also <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a>.
1171 </dd>
1172 <dd>
1173 <p>When setting rendition, the font mask will be ignored.</p>
1174 </dd>
1175 <dd>
1176 <p>See the section on RENDITION, above.</p>
1177 </dd>
1178 <p></p>
1179 <dt><strong><a name="item_row_l">$length = $term-&gt;ROW_l ($row_number[, $new_length])</a></strong><br />
1180 </dt>
1181 <dd>
1182 Returns the number of screen cells that are in use (``the line
1183 length''). Unlike the urxvt core, this returns <a href="#item_ncol"><code>$term-&gt;ncol</code></a> if the
1184 line is joined with the following one.
1185 </dd>
1186 <p></p>
1187 <dt><strong><a name="item_is_longer">$bool = $term-&gt;is_longer ($row_number)</a></strong><br />
1188 </dt>
1189 <dd>
1190 Returns true if the row is part of a multiple-row logical ``line'' (i.e.
1191 joined with the following row), which means all characters are in use
1192 and it is continued on the next row (and possibly a continuation of the
1193 previous row(s)).
1194 </dd>
1195 <p></p>
1196 <dt><strong><a name="item_line">$line = $term-&gt;line ($row_number)</a></strong><br />
1197 </dt>
1198 <dd>
1199 Create and return a new <code>urxvt::line</code> object that stores information
1200 about the logical line that row <code>$row_number</code> is part of. It supports the
1201 following methods:
1202 </dd>
1203 <dl>
1204 <dt><strong><a name="item_t">$text = $line-&gt;t ([$new_text])</a></strong><br />
1205 </dt>
1206 <dd>
1207 Returns or replaces the full text of the line, similar to <a href="#item_row_t"><code>ROW_t</code></a>
1208 </dd>
1209 <p></p>
1210 <dt><strong><a name="item_r">$rend = $line-&gt;r ([$new_rend])</a></strong><br />
1211 </dt>
1212 <dd>
1213 Returns or replaces the full rendition array of the line, similar to <a href="#item_row_r"><code>ROW_r</code></a>
1214 </dd>
1215 <p></p>
1216 <dt><strong><a name="item_l">$length = $line-&gt;l</a></strong><br />
1217 </dt>
1218 <dd>
1219 Returns the length of the line in cells, similar to <a href="#item_row_l"><code>ROW_l</code></a>.
1220 </dd>
1221 <p></p>
1222 <dt><strong><a name="item_beg">$rownum = $line-&gt;beg</a></strong><br />
1223 </dt>
1224 <dt><strong><a name="item_end">$rownum = $line-&gt;end</a></strong><br />
1225 </dt>
1226 <dd>
1227 Return the row number of the first/last row of the line, respectively.
1228 </dd>
1229 <p></p>
1230 <dt><strong><a name="item_offset_of">$offset = $line-&gt;offset_of ($row, $col)</a></strong><br />
1231 </dt>
1232 <dd>
1233 Returns the character offset of the given row|col pair within the logical
1234 line. Works for rows outside the line, too, and returns corresponding
1235 offsets outside the string.
1236 </dd>
1237 <p></p>
1238 <dt><strong><a name="item_coord_of">($row, $col) = $line-&gt;coord_of ($offset)</a></strong><br />
1239 </dt>
1240 <dd>
1241 Translates a string offset into terminal coordinates again.
1242 </dd>
1243 <p></p></dl>
1244 <dt><strong><a name="item_special_encode">$text = $term-&gt;special_encode $string</a></strong><br />
1245 </dt>
1246 <dd>
1247 Converts a perl string into the special encoding used by rxvt-unicode,
1248 where one character corresponds to one screen cell. See
1249 <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> for details.
1250 </dd>
1251 <p></p>
1252 <dt><strong><a name="item_special_decode">$string = $term-&gt;special_decode $text</a></strong><br />
1253 </dt>
1254 <dd>
1255 Converts rxvt-unicodes text reprsentation into a perl string. See
1256 <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> for details.
1257 </dd>
1258 <p></p>
1259 <dt><strong><a name="item_grab_button">$success = $term-&gt;grab_button ($button, $modifiermask)</a></strong><br />
1260 </dt>
1261 <dd>
1262 Registers a synchronous button grab. See the XGrabButton manpage.
1263 </dd>
1264 <p></p>
1265 <dt><strong><a name="item_grab">$success = $term-&gt;grab ($eventtime[, $sync])</a></strong><br />
1266 </dt>
1267 <dd>
1268 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1269 synchronous (<code>$sync</code> is true). Also remembers the grab timestampe.
1270 </dd>
1271 <p></p>
1272 <dt><strong><a name="item_allow_events_async">$term-&gt;allow_events_async</a></strong><br />
1273 </dt>
1274 <dd>
1275 Calls XAllowEvents with AsyncBoth for the most recent grab.
1276 </dd>
1277 <p></p>
1278 <dt><strong><a name="item_allow_events_sync">$term-&gt;allow_events_sync</a></strong><br />
1279 </dt>
1280 <dd>
1281 Calls XAllowEvents with SyncBoth for the most recent grab.
1282 </dd>
1283 <p></p>
1284 <dt><strong><a name="item_allow_events_replay">$term-&gt;allow_events_replay</a></strong><br />
1285 </dt>
1286 <dd>
1287 Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1288 recent grab.
1289 </dd>
1290 <p></p>
1291 <dt><strong><a name="item_ungrab">$term-&gt;ungrab</a></strong><br />
1292 </dt>
1293 <dd>
1294 Calls XUngrab for the most recent grab. Is called automatically on
1295 evaluation errors, as it is better to lose the grab in the error case as
1296 the session.
1297 </dd>
1298 <p></p></dl>
1299 <p>
1300 </p>
1301 <h2><a name="the_urxvt__popup_class">The <code>urxvt::popup</code> Class</a></h2>
1302 <dl>
1303 <dt><strong><a name="item_add_title">$popup-&gt;add_title ($title)</a></strong><br />
1304 </dt>
1305 <dd>
1306 Adds a non-clickable title to the popup.
1307 </dd>
1308 <p></p>
1309 <dt><strong><a name="item_add_separator">$popup-&gt;add_separator ([$sepchr])</a></strong><br />
1310 </dt>
1311 <dd>
1312 Creates a separator, optionally using the character given as <code>$sepchr</code>.
1313 </dd>
1314 <p></p>
1315 <dt><strong><a name="item_add_button">$popup-&gt;add_button ($text, $cb)</a></strong><br />
1316 </dt>
1317 <dd>
1318 Adds a clickable button to the popup. <code>$cb</code> is called whenever it is
1319 selected.
1320 </dd>
1321 <p></p>
1322 <dt><strong><a name="item_add_toggle">$popup-&gt;add_toggle ($text, $cb, $initial_value)</a></strong><br />
1323 </dt>
1324 <dd>
1325 Adds a toggle/checkbox item to the popup. Teh callback gets called
1326 whenever it gets toggled, with a boolean indicating its value as its first
1327 argument.
1328 </dd>
1329 <p></p>
1330 <dt><strong>$popup-&gt;show</strong><br />
1331 </dt>
1332 <dd>
1333 Displays the popup (which is initially hidden).
1334 </dd>
1335 <p></p></dl>
1336 <p>
1337 </p>
1338 <h2><a name="the_urxvt__timer_class">The <code>urxvt::timer</code> Class</a></h2>
1339 <p>This class implements timer watchers/events. Time is represented as a
1340 fractional number of seconds since the epoch. Example:</p>
1341 <pre>
1342 $term-&gt;{overlay} = $term-&gt;overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1343 $term-&gt;{timer} = urxvt::timer
1344 -&gt;new
1345 -&gt;interval (1)
1346 -&gt;cb (sub {
1347 $term-&gt;{overlay}-&gt;set (0, 0,
1348 sprintf &quot;%2d:%02d:%02d&quot;, (localtime urxvt::NOW)[2,1,0]);
1349 });</pre>
1350 <dl>
1351 <dt><strong><a name="item__24timer__3d_new_urxvt_3a_3atimer">$timer = new urxvt::timer</a></strong><br />
1352 </dt>
1353 <dd>
1354 Create a new timer object in started state. It is scheduled to fire
1355 immediately.
1356 </dd>
1357 <p></p>
1358 <dt><strong><a name="item_cb">$timer = $timer-&gt;cb (sub { my ($timer) = @_; ... })</a></strong><br />
1359 </dt>
1360 <dd>
1361 Set the callback to be called when the timer triggers.
1362 </dd>
1363 <p></p>
1364 <dt><strong><a name="item_at">$tstamp = $timer-&gt;at</a></strong><br />
1365 </dt>
1366 <dd>
1367 Return the time this watcher will fire next.
1368 </dd>
1369 <p></p>
1370 <dt><strong>$timer = $timer-&gt;set ($tstamp)</strong><br />
1371 </dt>
1372 <dd>
1373 Set the time the event is generated to $tstamp.
1374 </dd>
1375 <p></p>
1376 <dt><strong><a name="item_interval">$timer = $timer-&gt;interval ($interval)</a></strong><br />
1377 </dt>
1378 <dd>
1379 Normally (and when <code>$interval</code> is <code>0</code>), the timer will automatically
1380 stop after it has fired once. If <code>$interval</code> is non-zero, then the timer
1381 is automatically rescheduled at the given intervals.
1382 </dd>
1383 <p></p>
1384 <dt><strong><a name="item_start">$timer = $timer-&gt;start</a></strong><br />
1385 </dt>
1386 <dd>
1387 Start the timer.
1388 </dd>
1389 <p></p>
1390 <dt><strong>$timer = $timer-&gt;start ($tstamp)</strong><br />
1391 </dt>
1392 <dd>
1393 Set the event trigger time to <code>$tstamp</code> and start the timer.
1394 </dd>
1395 <p></p>
1396 <dt><strong><a name="item_stop">$timer = $timer-&gt;stop</a></strong><br />
1397 </dt>
1398 <dd>
1399 Stop the timer.
1400 </dd>
1401 <p></p></dl>
1402 <p>
1403 </p>
1404 <h2><a name="the_urxvt__iow_class">The <code>urxvt::iow</code> Class</a></h2>
1405 <p>This class implements io watchers/events. Example:</p>
1406 <pre>
1407 $term-&gt;{socket} = ...
1408 $term-&gt;{iow} = urxvt::iow
1409 -&gt;new
1410 -&gt;fd (fileno $term-&gt;{socket})
1411 -&gt;events (urxvt::EVENT_READ)
1412 -&gt;start
1413 -&gt;cb (sub {
1414 my ($iow, $revents) = @_;
1415 # $revents must be 1 here, no need to check
1416 sysread $term-&gt;{socket}, my $buf, 8192
1417 or end-of-file;
1418 });</pre>
1419 <dl>
1420 <dt><strong><a name="item__24iow__3d_new_urxvt_3a_3aiow">$iow = new urxvt::iow</a></strong><br />
1421 </dt>
1422 <dd>
1423 Create a new io watcher object in stopped state.
1424 </dd>
1425 <p></p>
1426 <dt><strong>$iow = $iow-&gt;cb (sub { my ($iow, $reventmask) = @_; ... })</strong><br />
1427 </dt>
1428 <dd>
1429 Set the callback to be called when io events are triggered. <code>$reventmask</code>
1430 is a bitset as described in the <a href="#item_events"><code>events</code></a> method.
1431 </dd>
1432 <p></p>
1433 <dt><strong><a name="item_fd">$iow = $iow-&gt;fd ($fd)</a></strong><br />
1434 </dt>
1435 <dd>
1436 Set the filedescriptor (not handle) to watch.
1437 </dd>
1438 <p></p>
1439 <dt><strong><a name="item_events">$iow = $iow-&gt;events ($eventmask)</a></strong><br />
1440 </dt>
1441 <dd>
1442 Set the event mask to watch. The only allowed values are
1443 <code>urxvt::EVENT_READ</code> and <code>urxvt::EVENT_WRITE</code>, which might be ORed
1444 together, or <code>urxvt::EVENT_NONE</code>.
1445 </dd>
1446 <p></p>
1447 <dt><strong>$iow = $iow-&gt;start</strong><br />
1448 </dt>
1449 <dd>
1450 Start watching for requested events on the given handle.
1451 </dd>
1452 <p></p>
1453 <dt><strong>$iow = $iow-&gt;stop</strong><br />
1454 </dt>
1455 <dd>
1456 Stop watching for events on the given filehandle.
1457 </dd>
1458 <p></p></dl>
1459 <p>
1460 </p>
1461 <hr />
1462 <h1><a name="environment">ENVIRONMENT</a></h1>
1463 <p>
1464 </p>
1465 <h2><a name="urxvt_perl_verbosity">URXVT_PERL_VERBOSITY</a></h2>
1466 <p>This variable controls the verbosity level of the perl extension. Higher
1467 numbers indicate more verbose output.</p>
1468 <dl>
1469 <dt><strong><a name="item__3d_3d_0__2d_fatal_messages">== 0 - fatal messages</a></strong><br />
1470 </dt>
1471 <dt><strong><a name="item__3e_3d_3__2d_script_loading_and_management">&gt;= 3 - script loading and management</a></strong><br />
1472 </dt>
1473 <dt><strong><a name="item__3e_3d10__2d_all_called_hooks">&gt;=10 - all called hooks</a></strong><br />
1474 </dt>
1475 <dt><strong><a name="item__3e_3d11__2d_hook_reutrn_values">&gt;=11 - hook reutrn values</a></strong><br />
1476 </dt>
1477 </dl>
1478 <p>
1479 </p>
1480 <hr />
1481 <h1><a name="author">AUTHOR</a></h1>
1482 <pre>
1483 Marc Lehmann &lt;pcg@goof.com&gt;
1484 <a href="http://software.schmorp.de/pkg/rxvt-unicode">http://software.schmorp.de/pkg/rxvt-unicode</a></pre>
1485
1486 </body>
1487
1488 </html>