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1 root 1.1 <!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 root 1.30 <title>rxvtperl - rxvt-unicode's embedded perl interpreter</title>
5 root 1.1 <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 root 1.20 <li><a href="#prepackaged_extensions">PREPACKAGED EXTENSIONS</a></li>
19     <li><a href="#api_documentation">API DOCUMENTATION</a></li>
20 root 1.1 <ul>
21    
22 root 1.3 <li><a href="#general_api_considerations">General API Considerations</a></li>
23 root 1.19 <li><a href="#extension_objects">Extension Objects</a></li>
24 root 1.1 <li><a href="#hooks">Hooks</a></li>
25 root 1.9 <li><a href="#variables_in_the_urxvt_package">Variables in the <code>urxvt</code> Package</a></li>
26 root 1.1 <li><a href="#functions_in_the_urxvt_package">Functions in the <code>urxvt</code> Package</a></li>
27 root 1.8 <li><a href="#rendition">RENDITION</a></li>
28 root 1.16 <li><a href="#the_urxvt__anyevent_class">The <code>urxvt::anyevent</code> Class</a></li>
29 root 1.1 <li><a href="#the_urxvt__term_class">The <code>urxvt::term</code> Class</a></li>
30 root 1.15 <li><a href="#the_urxvt__popup_class">The <code>urxvt::popup</code> Class</a></li>
31 root 1.1 <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 root 1.34 <li><a href="#the_urxvt__iw_class">The <code>urxvt::iw</code> Class</a></li>
34     <li><a href="#the_urxvt__pw_class">The <code>urxvt::pw</code> Class</a></li>
35 root 1.1 </ul>
36    
37 root 1.2 <li><a href="#environment">ENVIRONMENT</a></li>
38     <ul>
39    
40     <li><a href="#urxvt_perl_verbosity">URXVT_PERL_VERBOSITY</a></li>
41     </ul>
42    
43 root 1.1 <li><a href="#author">AUTHOR</a></li>
44     </ul>
45     <!-- INDEX END -->
46    
47     <hr />
48     <p>
49     </p>
50 root 1.7 <hr />
51 root 1.1 <h1><a name="name">NAME</a></h1>
52 root 1.30 <p>rxvtperl - rxvt-unicode's embedded perl interpreter</p>
53 root 1.1 <p>
54     </p>
55     <hr />
56     <h1><a name="synopsis">SYNOPSIS</a></h1>
57 root 1.5 <pre>
58     # create a file grab_test in $HOME:</pre>
59 root 1.1 <pre>
60     sub on_sel_grab {
61     warn &quot;you selected &quot;, $_[0]-&gt;selection;
62     ()
63     }</pre>
64     <pre>
65 root 1.30 # start a rxvt using it:</pre>
66 root 1.5 <pre>
67 root 1.30 rxvt --perl-lib $HOME -pe grab_test</pre>
68 root 1.1 <p>
69     </p>
70     <hr />
71     <h1><a name="description">DESCRIPTION</a></h1>
72 root 1.15 <p>Everytime a terminal object gets created, extension scripts specified via
73     the <code>perl</code> resource are loaded and associated with it.</p>
74 root 1.5 <p>Scripts are compiled in a 'use strict' and 'use utf8' environment, and
75     thus must be encoded as UTF-8.</p>
76 root 1.30 <p>Each script will only ever be loaded once, even in rxvtd, where
77 root 1.7 scripts will be shared (but not enabled) for all terminals.</p>
78 root 1.3 <p>
79     </p>
80 root 1.20 <hr />
81     <h1><a name="prepackaged_extensions">PREPACKAGED EXTENSIONS</a></h1>
82     <p>This section describes the extensions delivered with this release. You can
83 root 1.30 find them in <em>/opt/rxvt/lib/urxvt/perl/</em>.</p>
84 root 1.6 <p>You can activate them like this:</p>
85     <pre>
86 root 1.30 rxvt -pe &lt;extensionname&gt;</pre>
87 root 1.34 <p>Or by adding them to the resource for extensions loaded by default:</p>
88     <pre>
89     URxvt.perl-ext-common: default,automove-background,selection-autotransform</pre>
90 root 1.6 <dl>
91 root 1.16 <dt><strong><a name="item_selection">selection (enabled by default)</a></strong><br />
92 root 1.6 </dt>
93     <dd>
94 root 1.20 (More) intelligent selection. This extension tries to be more intelligent
95 root 1.25 when the user extends selections (double-click and further clicks). Right
96     now, it tries to select words, urls and complete shell-quoted
97     arguments, which is very convenient, too, if your <em>ls</em> supports
98     <code>--quoting-style=shell</code>.
99     </dd>
100     <dd>
101     <p>A double-click usually selects the word under the cursor, further clicks
102     will enlarge the selection.</p>
103 root 1.9 </dd>
104     <dd>
105 root 1.26 <p>The selection works by trying to match a number of regexes and displaying
106     them in increasing order of length. You can add your own regexes by
107     specifying resources of the form:</p>
108     </dd>
109     <dd>
110     <pre>
111     URxvt.selection.pattern-0: perl-regex
112     URxvt.selection.pattern-1: perl-regex
113     ...</pre>
114     </dd>
115     <dd>
116     <p>The index number (0, 1...) must not have any holes, and each regex must
117     contain at least one pair of capturing parentheses, which will be used for
118     the match. For example, the followign adds a regex that matches everything
119     between two vertical bars:</p>
120     </dd>
121     <dd>
122     <pre>
123     URxvt.selection.pattern-0: \\|([^|]+)\\|</pre>
124     </dd>
125     <dd>
126 root 1.38 <p>Another example: Programs I use often output ``absolute path: '' at the
127     beginning of a line when they process multiple files. The following
128     pattern matches the filename (note, there is a single space at the very
129     end):</p>
130     </dd>
131     <dd>
132     <pre>
133     URxvt.selection.pattern-0: ^(/[^:]+):\</pre>
134     </dd>
135     <dd>
136 root 1.26 <p>You can look at the source of the selection extension to see more
137     interesting uses, such as parsing a line from beginning to end.</p>
138     </dd>
139     <dd>
140 root 1.31 <p>This extension also offers following bindable keyboard commands:</p>
141 root 1.6 </dd>
142     <dl>
143     <dt><strong><a name="item_rot13">rot13</a></strong><br />
144     </dt>
145     <dd>
146     Rot-13 the selection when activated. Used via keyboard trigger:
147     </dd>
148     <dd>
149     <pre>
150     URxvt.keysym.C-M-r: perl:selection:rot13</pre>
151     </dd>
152     <p></p></dl>
153 root 1.16 <dt><strong><a name="item_popup">option-popup (enabled by default)</a></strong><br />
154     </dt>
155     <dd>
156 root 1.17 Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
157 root 1.16 runtime.
158     </dd>
159     <p></p>
160 root 1.17 <dt><strong>selection-popup (enabled by default)</strong><br />
161     </dt>
162     <dd>
163     Binds a popup menu to Ctrl-Button3 that lets you convert the selection
164 root 1.20 text into various other formats/action (such as uri unescaping, perl
165 root 1.35 evaluation, web-browser starting etc.), depending on content.
166 root 1.17 </dd>
167 root 1.33 <dd>
168     <p>Other extensions can extend this popup menu by pushing a code reference
169     onto <code>@{ $term-</code>{selection_popup_hook} }&gt;, that is called whenever the
170     popup is displayed.</p>
171     </dd>
172     <dd>
173     <p>It's sole argument is the popup menu, which can be modified. The selection
174     is in <code>$_</code>, which can be used to decide wether to add something or not.
175     It should either return nothing or a string and a code reference. The
176     string will be used as button text and the code reference will be called
177     when the button gets activated and should transform <code>$_</code>.</p>
178     </dd>
179     <dd>
180     <p>The following will add an entry <code>a to b</code> that transforms all <code>a</code>s in
181     the selection to <code>b</code>s, but only if the selection currently contains any
182     <code>a</code>s:</p>
183     </dd>
184     <dd>
185     <pre>
186     push @{ $self-&gt;{term}{selection_popup_hook} }, sub {
187     /a/ ? (&quot;a to be&quot; =&gt; sub { s/a/b/g }
188     : ()
189     };</pre>
190     </dd>
191 root 1.17 <p></p>
192 root 1.19 <dt><strong><a name="item_searchable_2dscrollback_3chotkey_3e__28enabled_by_">searchable-scrollback&lt;hotkey&gt; (enabled by default)</a></strong><br />
193     </dt>
194     <dd>
195     Adds regex search functionality to the scrollback buffer, triggered
196 root 1.25 by a hotkey (default: <code>M-s</code>). While in search mode, normal terminal
197     input/output is suspended and a regex is displayed at the bottom of the
198     screen.
199 root 1.19 </dd>
200     <dd>
201 root 1.25 <p>Inputting characters appends them to the regex and continues incremental
202     search. <code>BackSpace</code> removes a character from the regex, <code>Up</code> and <code>Down</code>
203     search upwards/downwards in the scrollback buffer, <code>End</code> jumps to the
204     bottom. <code>Escape</code> leaves search mode and returns to the point where search
205     was started, while <code>Enter</code> or <code>Return</code> stay at the current position and
206     additionally stores the first match in the current line into the primary
207     selection.</p>
208 root 1.19 </dd>
209     <p></p>
210 root 1.36 <dt><strong><a name="item_readline">readline (enabled by default)</a></strong><br />
211     </dt>
212     <dd>
213     A support package that tries to make editing with readline easier. At the
214     moment, it reacts to clicking with the left mouse button by trying to
215     move the text cursor to this position. It does so by generating as many
216     cursor-left or cursor-right keypresses as required (the this only works
217     for programs that correctly support wide characters).
218     </dd>
219     <dd>
220     <p>To avoid too many false positives, this is only done when:</p>
221     </dd>
222     <dl>
223 root 1.37 <dt><strong><a name="item__2d_the_tty_is_in_icanon_state_2e">- the tty is in ICANON state.</a></strong><br />
224     </dt>
225     <dt><strong><a name="item__2d_the_text_cursor_is_visible_2e">- the text cursor is visible.</a></strong><br />
226 root 1.36 </dt>
227     <dt><strong><a name="item__2d_the_primary_screen_is_currently_being_displaye">- the primary screen is currently being displayed.</a></strong><br />
228     </dt>
229 root 1.37 <dt><strong><a name="item_same">- the mouse is on the same (multi-row-) line as the text cursor.</a></strong><br />
230 root 1.36 </dt>
231     </dl>
232     <p>The normal selection mechanism isn't disabled, so quick successive clicks
233     might interfere with selection creation in harmless ways.</p>
234 root 1.26 <dt><strong><a name="item_selection_2dautotransform">selection-autotransform</a></strong><br />
235 root 1.6 </dt>
236     <dd>
237 root 1.26 This selection allows you to do automatic transforms on a selection
238     whenever a selection is made.
239     </dd>
240     <dd>
241     <p>It works by specifying perl snippets (most useful is a single <code>s///</code>
242     operator) that modify <code>$_</code> as resources:</p>
243     </dd>
244     <dd>
245     <pre>
246     URxvt.selection-autotransform.0: transform
247     URxvt.selection-autotransform.1: transform
248     ...</pre>
249     </dd>
250     <dd>
251     <p>For example, the following will transform selections of the form
252     <code>filename:number</code>, often seen in compiler messages, into <code>vi +$filename
253     $word</code>:</p>
254     </dd>
255     <dd>
256     <pre>
257 root 1.29 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/</pre>
258 root 1.26 </dd>
259     <dd>
260     <p>And this example matches the same,but replaces it with vi-commands you can
261     paste directly into your (vi :) editor:</p>
262     </dd>
263     <dd>
264     <pre>
265 root 1.33 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/</pre>
266 root 1.6 </dd>
267 root 1.27 <dd>
268     <p>Of course, this can be modified to suit your needs and your editor :)</p>
269     </dd>
270 root 1.28 <dd>
271     <p>To expand the example above to typical perl error messages (``XXX at
272     FILENAME line YYY.''), you need a slightly more elaborate solution:</p>
273     </dd>
274     <dd>
275     <pre>
276 root 1.33 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
277     URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/</pre>
278 root 1.28 </dd>
279     <dd>
280     <p>The first line tells the selection code to treat the unchanging part of
281     every error message as a selection pattern, and the second line transforms
282     the message into vi commands to load the file.</p>
283     </dd>
284 root 1.6 <p></p>
285 root 1.34 <dt><strong><a name="item_tabbed">tabbed</a></strong><br />
286     </dt>
287     <dd>
288     This transforms the terminal into a tabbar with additional terminals, that
289     is, it implements what is commonly refered to as ``tabbed terminal''. The topmost line
290     displays a ``[NEW]'' button, which, when clicked, will add a new tab, followed by one
291     button per tab.
292     </dd>
293     <dd>
294 root 1.35 <p>Clicking a button will activate that tab. Pressing <strong>Shift-Left</strong> and
295     <strong>Shift-Right</strong> will switch to the tab left or right of the current one,
296     while <strong>Shift-Down</strong> creates a new tab.</p>
297 root 1.34 </dd>
298     <p></p>
299 root 1.14 <dt><strong><a name="item_mark_2durls">mark-urls</a></strong><br />
300     </dt>
301     <dd>
302 root 1.24 Uses per-line display filtering (<code>on_line_update</code>) to underline urls and
303 root 1.25 make them clickable. When middle-clicked, the program specified in the
304     resource <code>urlLauncher</code> (default <code>x-www-browser</code>) will be started with
305     the URL as first argument.
306 root 1.14 </dd>
307     <p></p>
308 root 1.38 <dt><strong><a name="item_xim_2donthespot">xim-onthespot</a></strong><br />
309     </dt>
310     <dd>
311     This (experimental) perl extension implements OnTheSpot editing. It does
312     not work perfectly, and some input methods don't seem to work well with
313     OnTheSpot editing in general, but it seems to work at leats for SCIM and
314     kinput2.
315     </dd>
316     <dd>
317     <p>You enable it by specifying this extension and a preedit style of
318     <code>OnTheSpot</code>, i.e.:</p>
319     </dd>
320     <dd>
321     <pre>
322     rxvt -pt OnTheSpot -pe xim-onthespot</pre>
323     </dd>
324     <p></p>
325 root 1.33 <dt><strong><a name="item_automove_2dbackground">automove-background</a></strong><br />
326     </dt>
327     <dd>
328     This is basically a one-line extension that dynamically changes the background pixmap offset
329     to the window position, in effect creating the same effect as pseudo transparency with
330     a custom pixmap. No scaling is supported in this mode. Exmaple:
331     </dd>
332     <dd>
333     <pre>
334     rxvt -pixmap background.xpm -pe automove-background</pre>
335     </dd>
336     <p></p>
337 root 1.14 <dt><strong><a name="item_block_2dgraphics_2dto_2dascii">block-graphics-to-ascii</a></strong><br />
338     </dt>
339     <dd>
340     A not very useful example of filtering all text output to the terminal,
341     by replacing all line-drawing characters (U+2500 .. U+259F) by a
342     similar-looking ascii character.
343     </dd>
344     <p></p>
345 root 1.26 <dt><strong><a name="item_digital_2dclock">digital-clock</a></strong><br />
346     </dt>
347     <dd>
348     Displays a digital clock using the built-in overlay.
349     </dd>
350     <p></p>
351 root 1.39 <dt><strong><a name="item_remote_2dclipboard">remote-clipboard</a></strong><br />
352 root 1.6 </dt>
353     <dd>
354 root 1.39 Somewhat of a misnomer, this extension adds two menu entries to the
355     selection popup that allows one ti run external commands to store the
356     selection somewhere and fetch it again.
357     </dd>
358     <dd>
359     <p>We use it to implement a ``distributed selection mechanism'', which just
360     means that one command uploads the file to a remote server, and another
361     reads it.</p>
362     </dd>
363     <dd>
364     <p>The commands can be set using the <code>URxvt.remote-selection.store</code> and
365     <code>URxvt.remote-selection.fetch</code> resources. The first should read the
366     selection to store from STDIN (always in UTF-8), the second should provide
367     the selection data on STDOUT (also in UTF-8).</p>
368     </dd>
369     <dd>
370     <p>The defaults (which are likely useless to you) use rsh and cat:</p>
371     </dd>
372     <dd>
373     <pre>
374     URxvt.remote-selection.store: rsh ruth 'cat &gt;/tmp/distributed-selection'
375     URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'</pre>
376 root 1.6 </dd>
377 root 1.32 <p></p>
378     <dt><strong><a name="item_selection_2dpastebin">selection-pastebin</a></strong><br />
379     </dt>
380     <dd>
381     This is a little rarely useful extension that Uploads the selection as
382     textfile to a remote site (or does other things). (The implementation is
383     not currently secure for use in a multiuser environment as it writes to
384     <em>/tmp</em> directly.).
385     </dd>
386     <dd>
387     <p>It listens to the <code>selection-pastebin:remote-pastebin</code> keyboard command,
388     i.e.</p>
389     </dd>
390     <dd>
391     <pre>
392     URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin</pre>
393     </dd>
394     <dd>
395     <p>Pressing this combination runs a command with <code>%</code> replaced by the name of
396     the textfile. This command can be set via a resource:</p>
397     </dd>
398     <dd>
399     <pre>
400     URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.</pre>
401     </dd>
402     <dd>
403     <p>And the default is likely not useful to anybody but the few people around
404     here :)</p>
405     </dd>
406     <dd>
407     <p>The name of the textfile is the hex encoded md5 sum of the selection, so
408     the same content should lead to the same filename.</p>
409     </dd>
410     <dd>
411     <p>After a successful upload the selection will be replaced by the text given
412     in the <code>selection-pastebin-url</code> resource (again, the % is the placeholder
413     for the filename):</p>
414     </dd>
415     <dd>
416     <pre>
417     URxvt.selection-pastebin.url: <a href="http://www.ta-sa.org/files/txt/%">http://www.ta-sa.org/files/txt/%</a></pre>
418     </dd>
419 root 1.39 <p></p>
420     <dt><strong><a name="item_example_2drefresh_2dhooks">example-refresh-hooks</a></strong><br />
421     </dt>
422     <dd>
423     Displays a very simple digital clock in the upper right corner of the
424     window. Illustrates overwriting the refresh callbacks to create your own
425     overlays or changes.
426     </dd>
427 root 1.6 <p></p></dl>
428     <p>
429     </p>
430 root 1.20 <hr />
431     <h1><a name="api_documentation">API DOCUMENTATION</a></h1>
432     <p>
433     </p>
434 root 1.3 <h2><a name="general_api_considerations">General API Considerations</a></h2>
435     <p>All objects (such as terminals, time watchers etc.) are typical
436     reference-to-hash objects. The hash can be used to store anything you
437     like. All members starting with an underscore (such as <code>_ptr</code> or
438 root 1.9 <code>_hook</code>) are reserved for internal uses and <strong>MUST NOT</strong> be accessed or
439 root 1.3 modified).</p>
440     <p>When objects are destroyed on the C++ side, the perl object hashes are
441     emptied, so its best to store related objects such as time watchers and
442     the like inside the terminal object so they get destroyed as soon as the
443     terminal is destroyed.</p>
444 root 1.14 <p>Argument names also often indicate the type of a parameter. Here are some
445     hints on what they mean:</p>
446     <dl>
447     <dt><strong><a name="item__24text">$text</a></strong><br />
448     </dt>
449     <dd>
450     Rxvt-unicodes special way of encoding text, where one ``unicode'' character
451 root 1.23 always represents one screen cell. See <a href="#item_row_t">ROW_t</a> for a discussion of this format.
452 root 1.14 </dd>
453     <p></p>
454     <dt><strong><a name="item__24string">$string</a></strong><br />
455     </dt>
456     <dd>
457     A perl text string, with an emphasis on <em>text</em>. It can store all unicode
458     characters and is to be distinguished with text encoded in a specific
459     encoding (often locale-specific) and binary data.
460     </dd>
461     <p></p>
462     <dt><strong><a name="item__24octets">$octets</a></strong><br />
463     </dt>
464     <dd>
465     Either binary data or - more common - a text string encoded in a
466     locale-specific way.
467     </dd>
468     <p></p></dl>
469 root 1.1 <p>
470     </p>
471 root 1.19 <h2><a name="extension_objects">Extension Objects</a></h2>
472     <p>Very perl extension is a perl class. A separate perl object is created
473     for each terminal and each extension and passed as the first parameter to
474     hooks. So extensions can use their <code>$self</code> object without having to think
475     about other extensions, with the exception of methods and members that
476     begin with an underscore character <code>_</code>: these are reserved for internal
477     use.</p>
478     <p>Although it isn't a <code>urxvt::term</code> object, you can call all methods of the
479     <code>urxvt::term</code> class on this object.</p>
480     <p>It has the following methods and data members:</p>
481     <dl>
482     <dt><strong><a name="item__24urxvt_term__3d__24self_2d_3e_7bterm_7d">$urxvt_term = $self-&gt;{term}</a></strong><br />
483     </dt>
484     <dd>
485     Returns the <code>urxvt::term</code> object associated with this instance of the
486     extension. This member <em>must not</em> be changed in any way.
487     </dd>
488     <p></p>
489     <dt><strong><a name="item_enable">$self-&gt;enable ($hook_name =&gt; $cb, [$hook_name =&gt; $cb..])</a></strong><br />
490     </dt>
491     <dd>
492     Dynamically enable the given hooks (named without the <code>on_</code> prefix) for
493     this extension, replacing any previous hook. This is useful when you want
494     to overwrite time-critical hooks only temporarily.
495     </dd>
496     <p></p>
497     <dt><strong><a name="item_disable">$self-&gt;disable ($hook_name[, $hook_name..])</a></strong><br />
498     </dt>
499     <dd>
500     Dynamically disable the given hooks.
501     </dd>
502     <p></p></dl>
503     <p>
504     </p>
505 root 1.1 <h2><a name="hooks">Hooks</a></h2>
506 root 1.14 <p>The following subroutines can be declared in extension files, and will be
507 root 1.9 called whenever the relevant event happens.</p>
508 root 1.19 <p>The first argument passed to them is an extension oject as described in
509     the in the <code>Extension Objects</code> section.</p>
510 root 1.34 <p><strong>All</strong> of these hooks must return a boolean value. If any of the called
511     hooks returns true, then the event counts as being <em>consumed</em>, and the
512     relevant action might not be carried out by the C++ code.</p>
513 root 1.19 <p><em>When in doubt, return a false value (preferably <code>()</code>). </em>&gt;</p>
514 root 1.1 <dl>
515     <dt><strong><a name="item_on_init__24term">on_init $term</a></strong><br />
516     </dt>
517     <dd>
518     Called after a new terminal object has been initialized, but before
519 root 1.14 windows are created or the command gets run. Most methods are unsafe to
520     call or deliver senseless data, as terminal size and other characteristics
521 root 1.34 have not yet been determined. You can safely query and change resources
522     and options, though. For many purposes the <code>on_start</code> hook is a better
523     place.
524     </dd>
525     <p></p>
526     <dt><strong><a name="item_on_start__24term">on_start $term</a></strong><br />
527     </dt>
528     <dd>
529     Called at the very end of initialisation of a new terminal, just before
530     trying to map (display) the toplevel and returning to the mainloop.
531     </dd>
532     <p></p>
533     <dt><strong><a name="item_on_destroy__24term">on_destroy $term</a></strong><br />
534     </dt>
535     <dd>
536 root 1.38 Called whenever something tries to destroy terminal, when the terminal is
537     still fully functional (not for long, though).
538 root 1.1 </dd>
539     <p></p>
540     <dt><strong><a name="item_on_reset__24term">on_reset $term</a></strong><br />
541     </dt>
542     <dd>
543     Called after the screen is ``reset'' for any reason, such as resizing or
544     control sequences. Here is where you can react on changes to size-related
545     variables.
546     </dd>
547     <p></p>
548 root 1.33 <dt><strong><a name="item_on_child_start__24term_2c__24pid">on_child_start $term, $pid</a></strong><br />
549     </dt>
550     <dd>
551     Called just after the child process has been <code>fork</code>ed.
552     </dd>
553     <p></p>
554     <dt><strong><a name="item_on_child_exit__24term_2c__24status">on_child_exit $term, $status</a></strong><br />
555     </dt>
556     <dd>
557     Called just after the child process has exited. <code>$status</code> is the status
558     from <code>waitpid</code>.
559     </dd>
560     <p></p>
561 root 1.1 <dt><strong><a name="item_on_sel_make__24term_2c__24eventtime">on_sel_make $term, $eventtime</a></strong><br />
562     </dt>
563     <dd>
564     Called whenever a selection has been made by the user, but before the
565     selection text is copied, so changes to the beginning, end or type of the
566     selection will be honored.
567     </dd>
568     <dd>
569     <p>Returning a true value aborts selection making by urxvt, in which case you
570     have to make a selection yourself by calling <a href="#item_selection_grab"><code>$term-&gt;selection_grab</code></a>.</p>
571     </dd>
572     <p></p>
573     <dt><strong><a name="item_on_sel_grab__24term_2c__24eventtime">on_sel_grab $term, $eventtime</a></strong><br />
574     </dt>
575     <dd>
576     Called whenever a selection has been copied, but before the selection is
577     requested from the server. The selection text can be queried and changed
578     by calling <a href="#item_selection"><code>$term-&gt;selection</code></a>.
579     </dd>
580     <dd>
581     <p>Returning a true value aborts selection grabbing. It will still be hilighted.</p>
582     </dd>
583     <p></p>
584 root 1.9 <dt><strong><a name="item_on_sel_extend__24term">on_sel_extend $term</a></strong><br />
585     </dt>
586     <dd>
587     Called whenever the user tries to extend the selection (e.g. with a double
588     click) and is either supposed to return false (normal operation), or
589     should extend the selection itelf and return true to suppress the built-in
590 root 1.25 processing. This can happen multiple times, as long as the callback
591     returns true, it will be called on every further click by the user and is
592     supposed to enlarge the selection more and more, if possible.
593 root 1.9 </dd>
594     <dd>
595     <p>See the <em>selection</em> example extension.</p>
596     </dd>
597     <p></p>
598 root 1.1 <dt><strong><a name="item_on_view_change__24term_2c__24offset">on_view_change $term, $offset</a></strong><br />
599     </dt>
600     <dd>
601     Called whenever the view offset changes, i..e the user or program
602     scrolls. Offset <code>0</code> means display the normal terminal, positive values
603     show this many lines of scrollback.
604     </dd>
605     <p></p>
606     <dt><strong><a name="item_on_scroll_back__24term_2c__24lines_2c__24saved">on_scroll_back $term, $lines, $saved</a></strong><br />
607     </dt>
608     <dd>
609     Called whenever lines scroll out of the terminal area into the scrollback
610     buffer. <code>$lines</code> is the number of lines scrolled out and may be larger
611     than the scroll back buffer or the terminal.
612     </dd>
613     <dd>
614     <p>It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
615     $nrow - 1) represent the lines to be scrolled out). <code>$saved</code> is the total
616     number of lines that will be in the scrollback buffer.</p>
617     </dd>
618     <p></p>
619 root 1.11 <dt><strong><a name="item_on_osc_seq__24term_2c__24string">on_osc_seq $term, $string</a></strong><br />
620     </dt>
621     <dd>
622     Called whenever the <strong>ESC ] 777 ; string ST</strong> command sequence (OSC =
623     operating system command) is processed. Cursor position and other state
624     information is up-to-date when this happens. For interoperability, the
625     string should start with the extension name and a colon, to distinguish
626     it from commands for other extensions, and this might be enforced in the
627     future.
628     </dd>
629     <dd>
630     <p>Be careful not ever to trust (in a security sense) the data you receive,
631     as its source can not easily be controleld (e-mail content, messages from
632     other users on the same system etc.).</p>
633     </dd>
634     <p></p>
635 root 1.14 <dt><strong><a name="item_on_add_lines__24term_2c__24string">on_add_lines $term, $string</a></strong><br />
636     </dt>
637     <dd>
638     Called whenever text is about to be output, with the text as argument. You
639     can filter/change and output the text yourself by returning a true value
640     and calling <a href="#item_scr_add_lines"><code>$term-&gt;scr_add_lines</code></a> yourself. Please note that this
641     might be very slow, however, as your hook is called for <strong>all</strong> text being
642     output.
643     </dd>
644     <p></p>
645 root 1.19 <dt><strong><a name="item_on_tt_write__24term_2c__24octets">on_tt_write $term, $octets</a></strong><br />
646     </dt>
647     <dd>
648     Called whenever some data is written to the tty/pty and can be used to
649     suppress or filter tty input.
650     </dd>
651     <p></p>
652 root 1.14 <dt><strong><a name="item_on_line_update__24term_2c__24row">on_line_update $term, $row</a></strong><br />
653     </dt>
654     <dd>
655     Called whenever a line was updated or changed. Can be used to filter
656     screen output (e.g. underline urls or other useless stuff). Only lines
657     that are being shown will be filtered, and, due to performance reasons,
658     not always immediately.
659     </dd>
660     <dd>
661     <p>The row number is always the topmost row of the line if the line spans
662     multiple rows.</p>
663     </dd>
664     <dd>
665     <p>Please note that, if you change the line, then the hook might get called
666     later with the already-modified line (e.g. if unrelated parts change), so
667     you cannot just toggle rendition bits, but only set them.</p>
668     </dd>
669     <p></p>
670 root 1.1 <dt><strong><a name="item_on_refresh_begin__24term">on_refresh_begin $term</a></strong><br />
671     </dt>
672     <dd>
673     Called just before the screen gets redrawn. Can be used for overlay
674     or similar effects by modify terminal contents in refresh_begin, and
675     restoring them in refresh_end. The built-in overlay and selection display
676     code is run after this hook, and takes precedence.
677     </dd>
678     <p></p>
679     <dt><strong><a name="item_on_refresh_end__24term">on_refresh_end $term</a></strong><br />
680     </dt>
681     <dd>
682     Called just after the screen gets redrawn. See <code>on_refresh_begin</code>.
683     </dd>
684 root 1.5 <p></p>
685 root 1.39 <dt><strong><a name="item_on_user_command__24term_2c__24string">on_user_command $term, $string</a></strong><br />
686 root 1.5 </dt>
687     <dd>
688 root 1.39 Called whenever the a user-configured event is being activated (e.g. via
689     a <code>perl:string</code> action bound to a key, see description of the <strong>keysym</strong>
690 root 1.30 resource in the <code>rxvt(1)</code> manpage).
691 root 1.29 </dd>
692 root 1.39 <dd>
693     <p>The event is simply the action string. This interface is assumed to change
694     slightly in the future.</p>
695     </dd>
696 root 1.29 <p></p>
697     <dt><strong><a name="item_on_x_event__24term_2c__24event">on_x_event $term, $event</a></strong><br />
698     </dt>
699     <dd>
700     Called on every X event received on the vt window (and possibly other
701     windows). Should only be used as a last resort. Most event structure
702     members are not passed.
703 root 1.5 </dd>
704 root 1.14 <p></p>
705 root 1.15 <dt><strong><a name="item_on_focus_in__24term">on_focus_in $term</a></strong><br />
706     </dt>
707     <dd>
708     Called whenever the window gets the keyboard focus, before rxvt-unicode
709     does focus in processing.
710     </dd>
711     <p></p>
712     <dt><strong><a name="item_on_focus_out__24term">on_focus_out $term</a></strong><br />
713     </dt>
714     <dd>
715     Called wheneever the window loses keyboard focus, before rxvt-unicode does
716     focus out processing.
717     </dd>
718     <p></p>
719 root 1.33 <dt><strong><a name="item_on_configure_notify__24term_2c__24event">on_configure_notify $term, $event</a></strong><br />
720     </dt>
721 root 1.35 <dt><strong><a name="item_on_property_notify__24term_2c__24event">on_property_notify $term, $event</a></strong><br />
722     </dt>
723 root 1.19 <dt><strong><a name="item_on_key_press__24term_2c__24event_2c__24keysym_2c__">on_key_press $term, $event, $keysym, $octets</a></strong><br />
724 root 1.14 </dt>
725 root 1.19 <dt><strong><a name="item_on_key_release__24term_2c__24event_2c__24keysym">on_key_release $term, $event, $keysym</a></strong><br />
726 root 1.14 </dt>
727     <dt><strong><a name="item_on_button_press__24term_2c__24event">on_button_press $term, $event</a></strong><br />
728     </dt>
729     <dt><strong><a name="item_on_button_release__24term_2c__24event">on_button_release $term, $event</a></strong><br />
730     </dt>
731     <dt><strong><a name="item_on_motion_notify__24term_2c__24event">on_motion_notify $term, $event</a></strong><br />
732     </dt>
733 root 1.15 <dt><strong><a name="item_on_map_notify__24term_2c__24event">on_map_notify $term, $event</a></strong><br />
734     </dt>
735     <dt><strong><a name="item_on_unmap_notify__24term_2c__24event">on_unmap_notify $term, $event</a></strong><br />
736     </dt>
737 root 1.14 <dd>
738     Called whenever the corresponding X event is received for the terminal If
739     the hook returns true, then the even will be ignored by rxvt-unicode.
740     </dd>
741     <dd>
742     <p>The event is a hash with most values as named by Xlib (see the XEvent
743 root 1.35 manpage), with the additional members <code>row</code> and <code>col</code>, which are the
744     (real, not screen-based) row and column under the mouse cursor.</p>
745 root 1.14 </dd>
746     <dd>
747     <p><code>on_key_press</code> additionally receives the string rxvt-unicode would
748     output, if any, in locale-specific encoding.</p>
749     </dd>
750     <dd>
751     <p>subwindow.</p>
752     </dd>
753 root 1.34 <p></p>
754     <dt><strong><a name="item_on_client_message__24term_2c__24event">on_client_message $term, $event</a></strong><br />
755     </dt>
756     <dt><strong><a name="item_on_wm_protocols__24term_2c__24event">on_wm_protocols $term, $event</a></strong><br />
757     </dt>
758     <dt><strong><a name="item_on_wm_delete_window__24term_2c__24event">on_wm_delete_window $term, $event</a></strong><br />
759     </dt>
760     <dd>
761     Called when various types of ClientMessage events are received (all with
762     format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
763     </dd>
764 root 1.1 <p></p></dl>
765     <p>
766     </p>
767 root 1.9 <h2><a name="variables_in_the_urxvt_package">Variables in the <code>urxvt</code> Package</a></h2>
768     <dl>
769 root 1.21 <dt><strong><a name="item__24urxvt_3a_3alibdir">$urxvt::LIBDIR</a></strong><br />
770     </dt>
771     <dd>
772     The rxvt-unicode library directory, where, among other things, the perl
773     modules and scripts are stored.
774     </dd>
775     <p></p>
776     <dt><strong><a name="item__24urxvt_3a_3aresclass_2c__24urxvt_3a_3aresclass">$urxvt::RESCLASS, $urxvt::RESCLASS</a></strong><br />
777     </dt>
778     <dd>
779     The resource class and name rxvt-unicode uses to look up X resources.
780     </dd>
781     <p></p>
782     <dt><strong><a name="item__24urxvt_3a_3arxvtname">$urxvt::RXVTNAME</a></strong><br />
783     </dt>
784     <dd>
785     The basename of the installed binaries, usually <code>urxvt</code>.
786     </dd>
787     <p></p>
788 root 1.9 <dt><strong><a name="item__24urxvt_3a_3aterm">$urxvt::TERM</a></strong><br />
789     </dt>
790     <dd>
791 root 1.14 The current terminal. This variable stores the current <code>urxvt::term</code>
792     object, whenever a callback/hook is executing.
793 root 1.9 </dd>
794 root 1.34 <p></p>
795     <dt><strong><a name="item__40urxvt_3a_3aterm_init">@urxvt::TERM_INIT</a></strong><br />
796     </dt>
797     <dd>
798     All coderefs in this array will be called as methods of the next newly
799     created <code>urxvt::term</code> object (during the <code>on_init</code> phase). The array
800     gets cleared before the codereferences that were in it are being executed,
801     so coderefs can push themselves onto it again if they so desire.
802     </dd>
803     <dd>
804     <p>This complements to the perl-eval commandline option, but gets executed
805     first.</p>
806     </dd>
807     <p></p>
808     <dt><strong><a name="item__40urxvt_3a_3aterm_ext">@urxvt::TERM_EXT</a></strong><br />
809     </dt>
810     <dd>
811     Works similar to <code>@TERM_INIT</code>, but contains perl package/class names, which
812     get registered as normal extensions after calling the hooks in <code>@TERM_INIT</code>
813     but before other extensions. Gets cleared just like <code>@TERM_INIT</code>.
814     </dd>
815 root 1.23 <p></p></dl>
816 root 1.9 <p>
817     </p>
818 root 1.1 <h2><a name="functions_in_the_urxvt_package">Functions in the <code>urxvt</code> Package</a></h2>
819     <dl>
820     <dt><strong><a name="item_urxvt_3a_3afatal__24errormessage">urxvt::fatal $errormessage</a></strong><br />
821     </dt>
822     <dd>
823     Fatally aborts execution with the given error message. Avoid at all
824     costs! The only time this is acceptable is when the terminal process
825     starts up.
826     </dd>
827     <p></p>
828     <dt><strong><a name="item_urxvt_3a_3awarn__24string">urxvt::warn $string</a></strong><br />
829     </dt>
830     <dd>
831 root 1.3 Calls <code>rxvt_warn</code> with the given string which should not include a
832 root 1.1 newline. The module also overwrites the <code>warn</code> builtin with a function
833     that calls this function.
834     </dd>
835     <dd>
836     <p>Using this function has the advantage that its output ends up in the
837     correct place, e.g. on stderr of the connecting urxvtc client.</p>
838     </dd>
839 root 1.22 <dd>
840     <p>Messages have a size limit of 1023 bytes currently.</p>
841     </dd>
842 root 1.1 <p></p>
843 root 1.40 <dt><strong><a name="item__40terms__3d_urxvt_3a_3atermlist">@terms = urxvt::termlist</a></strong><br />
844     </dt>
845     <dd>
846     Returns all urxvt::term objects that exist in this process, regardless of
847     wether they are started, being destroyed etc., so be careful. Only term
848     objects that have perl extensions attached will be returned (because there
849     is no urxvt::term objet associated with others).
850     </dd>
851     <p></p>
852 root 1.1 <dt><strong><a name="item__24time__3d_urxvt_3a_3anow">$time = urxvt::NOW</a></strong><br />
853     </dt>
854     <dd>
855     Returns the ``current time'' (as per the event loop).
856     </dd>
857 root 1.15 <p></p>
858     <dt><strong><a name="item_urxvt_3a_3acurrenttime">urxvt::CurrentTime</a></strong><br />
859     </dt>
860     <dt><strong><a name="item_urxvt_3a_3ashiftmask_2c_lockmask_2c_controlmask_2c">urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
861     Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
862     Button4Mask, Button5Mask, AnyModifier</a></strong><br />
863     </dt>
864 root 1.29 <dt><strong><a name="item_urxvt_3a_3anoeventmask_2c_keypressmask_2c_keyrelea">urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
865     ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
866     PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
867     Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
868     KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
869     ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
870     FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask</a></strong><br />
871     </dt>
872     <dt><strong><a name="item_urxvt_3a_3akeypress_2c_keyrelease_2c_buttonpress_2">urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
873     EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
874     GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
875     UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
876     ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
877     CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
878     SelectionNotify, ColormapNotify, ClientMessage, MappingNotify</a></strong><br />
879     </dt>
880 root 1.15 <dd>
881 root 1.16 Various constants for use in X calls and event processing.
882 root 1.15 </dd>
883 root 1.1 <p></p></dl>
884     <p>
885     </p>
886 root 1.8 <h2><a name="rendition">RENDITION</a></h2>
887     <p>Rendition bitsets contain information about colour, font, font styles and
888     similar information for each screen cell.</p>
889     <p>The following ``macros'' deal with changes in rendition sets. You should
890     never just create a bitset, you should always modify an existing one,
891     as they contain important information required for correct operation of
892     rxvt-unicode.</p>
893     <dl>
894     <dt><strong><a name="item__24rend__3d_urxvt_3a_3adefault_rstyle">$rend = urxvt::DEFAULT_RSTYLE</a></strong><br />
895     </dt>
896     <dd>
897     Returns the default rendition, as used when the terminal is starting up or
898     being reset. Useful as a base to start when creating renditions.
899     </dd>
900     <p></p>
901     <dt><strong><a name="item__24rend__3d_urxvt_3a_3aoverlay_rstyle">$rend = urxvt::OVERLAY_RSTYLE</a></strong><br />
902     </dt>
903     <dd>
904     Return the rendition mask used for overlays by default.
905     </dd>
906     <p></p>
907     <dt><strong><a name="item__24rendbit__3d_urxvt_3a_3ars_bold_2c_rs_italic_2c_">$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline</a></strong><br />
908     </dt>
909     <dd>
910     Return the bit that enabled bold, italic, blink, reverse-video and
911     underline, respectively. To enable such a style, just logically OR it into
912     the bitset.
913     </dd>
914     <p></p>
915     <dt><strong><a name="item__24foreground__3d_urxvt_3a_3aget_basefg__24rend">$foreground = urxvt::GET_BASEFG $rend</a></strong><br />
916     </dt>
917     <dt><strong><a name="item__24background__3d_urxvt_3a_3aget_basebg__24rend">$background = urxvt::GET_BASEBG $rend</a></strong><br />
918     </dt>
919     <dd>
920     Return the foreground/background colour index, respectively.
921     </dd>
922     <p></p>
923 root 1.21 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_fgcolor__24rend_2c__24n">$rend = urxvt::SET_FGCOLOR $rend, $new_colour</a></strong><br />
924 root 1.8 </dt>
925 root 1.21 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_bgcolor__24rend_2c__24n">$rend = urxvt::SET_BGCOLOR $rend, $new_colour</a></strong><br />
926 root 1.8 </dt>
927     <dd>
928     Replace the foreground/background colour in the rendition mask with the
929     specified one.
930     </dd>
931     <p></p>
932 root 1.21 <dt><strong><a name="item__24value__3d_urxvt_3a_3aget_custom__24rend">$value = urxvt::GET_CUSTOM $rend</a></strong><br />
933 root 1.8 </dt>
934     <dd>
935     Return the ``custom'' value: Every rendition has 5 bits for use by
936     extensions. They can be set and changed as you like and are initially
937     zero.
938     </dd>
939     <p></p>
940 root 1.21 <dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_custom__24rend_2c__24ne">$rend = urxvt::SET_CUSTOM $rend, $new_value</a></strong><br />
941 root 1.8 </dt>
942     <dd>
943     Change the custom value.
944     </dd>
945     <p></p></dl>
946     <p>
947     </p>
948 root 1.16 <h2><a name="the_urxvt__anyevent_class">The <code>urxvt::anyevent</code> Class</a></h2>
949     <p>The sole purpose of this class is to deliver an interface to the
950     <code>AnyEvent</code> module - any module using it will work inside urxvt without
951 root 1.21 further programming. The only exception is that you cannot wait on
952     condition variables, but non-blocking condvar use is ok. What this means
953     is that you cannot use blocking APIs, but the non-blocking variant should
954     work.</p>
955 root 1.16 <p>
956     </p>
957 root 1.1 <h2><a name="the_urxvt__term_class">The <code>urxvt::term</code> Class</a></h2>
958     <dl>
959 root 1.22 <dt><strong><a name="item__24term__3d_new_urxvt_3a_3aterm__24envhashref_2c__">$term = new urxvt::term $envhashref, $rxvtname, [arg...]</a></strong><br />
960     </dt>
961     <dd>
962     Creates a new terminal, very similar as if you had started it with system
963 root 1.23 <code>$rxvtname, arg...</code>. <code>$envhashref</code> must be a reference to a <code>%ENV</code>-like
964     hash which defines the environment of the new terminal.
965 root 1.22 </dd>
966     <dd>
967 root 1.23 <p>Croaks (and probably outputs an error message) if the new instance
968 root 1.22 couldn't be created. Returns <code>undef</code> if the new instance didn't
969     initialise perl, and the terminal object otherwise. The <code>init</code> and
970 root 1.40 <a href="#item_start"><code>start</code></a> hooks will be called before this call returns, and are free to
971     refer to global data (which is race free).</p>
972 root 1.22 </dd>
973     <p></p>
974 root 1.14 <dt><strong><a name="item_destroy">$term-&gt;destroy</a></strong><br />
975     </dt>
976     <dd>
977 root 1.21 Destroy the terminal object (close the window, free resources
978 root 1.30 etc.). Please note that rxvt will not exit as long as any event
979 root 1.21 watchers (timers, io watchers) are still active.
980 root 1.14 </dd>
981     <p></p>
982 root 1.33 <dt><strong><a name="item_exec_async">$term-&gt;exec_async ($cmd[, @args])</a></strong><br />
983     </dt>
984     <dd>
985     Works like the combination of the <code>fork</code>/<code>exec</code> builtins, which executes
986     (``starts'') programs in the background. This function takes care of setting
987     the user environment before exec'ing the command (e.g. <code>PATH</code>) and should
988     be preferred over explicit calls to <code>exec</code> or <code>system</code>.
989     </dd>
990     <dd>
991     <p>Returns the pid of the subprocess or <code>undef</code> on error.</p>
992     </dd>
993     <p></p>
994 root 1.15 <dt><strong><a name="item_option">$isset = $term-&gt;option ($optval[, $set])</a></strong><br />
995     </dt>
996     <dd>
997     Returns true if the option specified by <code>$optval</code> is enabled, and
998     optionally change it. All option values are stored by name in the hash
999     <code>%urxvt::OPTION</code>. Options not enabled in this binary are not in the hash.
1000     </dd>
1001     <dd>
1002     <p>Here is a a likely non-exhaustive list of option names, please see the
1003     source file <em>/src/optinc.h</em> to see the actual list:</p>
1004     </dd>
1005     <dd>
1006     <pre>
1007     borderLess console cursorBlink cursorUnderline hold iconic insecure
1008     intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
1009 root 1.33 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
1010     scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
1011     scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
1012     transparent tripleclickwords utmpInhibit visualBell</pre>
1013 root 1.15 </dd>
1014     <p></p>
1015 root 1.2 <dt><strong><a name="item_resource">$value = $term-&gt;resource ($name[, $newval])</a></strong><br />
1016     </dt>
1017     <dd>
1018     Returns the current resource value associated with a given name and
1019     optionally sets a new value. Setting values is most useful in the <code>init</code>
1020     hook. Unset resources are returned and accepted as <code>undef</code>.
1021     </dd>
1022     <dd>
1023     <p>The new value must be properly encoded to a suitable character encoding
1024     before passing it to this method. Similarly, the returned value may need
1025     to be converted from the used encoding to text.</p>
1026     </dd>
1027     <dd>
1028     <p>Resource names are as defined in <em>src/rsinc.h</em>. Colours can be specified
1029     as resource names of the form <code>color+&lt;index&gt;</code>, e.g. <code>color+5</code>. (will
1030     likely change).</p>
1031     </dd>
1032     <dd>
1033     <p>Please note that resource strings will currently only be freed when the
1034     terminal is destroyed, so changing options frequently will eat memory.</p>
1035     </dd>
1036     <dd>
1037     <p>Here is a a likely non-exhaustive list of resource names, not all of which
1038 root 1.15 are supported in every build, please see the source file <em>/src/rsinc.h</em>
1039     to see the actual list:</p>
1040 root 1.2 </dd>
1041     <dd>
1042     <pre>
1043     answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
1044     borderLess color cursorBlink cursorUnderline cutchars delete_key
1045     display_name embed ext_bwidth fade font geometry hold iconName
1046     imFont imLocale inputMethod insecure int_bwidth intensityStyles
1047 root 1.33 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
1048     mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
1049     perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
1050     preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
1051     scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
1052     scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
1053     secondaryScreen secondaryScroll selectstyle shade term_name title
1054     transient_for transparent transparent_all tripleclickwords utmpInhibit
1055     visualBell</pre>
1056 root 1.2 </dd>
1057     <p></p>
1058 root 1.24 <dt><strong><a name="item_x_resource">$value = $term-&gt;x_resource ($pattern)</a></strong><br />
1059     </dt>
1060     <dd>
1061     Returns the X-Resource for the given pattern, excluding the program or
1062     class name, i.e. <a href="#item_x_resource"><code>$term-&gt;x_resource (&quot;boldFont&quot;)</code></a> should return the
1063     same value as used by this instance of rxvt-unicode. Returns <code>undef</code> if no
1064     resource with that pattern exists.
1065     </dd>
1066     <dd>
1067     <p>This method should only be called during the <code>on_start</code> hook, as there is
1068     only one resource database per display, and later invocations might return
1069     the wrong resources.</p>
1070     </dd>
1071     <p></p>
1072 root 1.19 <dt><strong><a name="item_parse_keysym">$success = $term-&gt;parse_keysym ($keysym_spec, $command_string)</a></strong><br />
1073     </dt>
1074     <dd>
1075     Adds a keymap translation exactly as specified via a resource. See the
1076 root 1.30 <code>keysym</code> resource in the <code>rxvt(1)</code> manpage.
1077 root 1.19 </dd>
1078     <p></p>
1079 root 1.14 <dt><strong><a name="item_rstyle">$rend = $term-&gt;rstyle ([$new_rstyle])</a></strong><br />
1080 root 1.13 </dt>
1081     <dd>
1082 root 1.14 Return and optionally change the current rendition. Text that is output by
1083     the terminal application will use this style.
1084 root 1.13 </dd>
1085     <p></p>
1086     <dt><strong><a name="item_screen_cur">($row, $col) = $term-&gt;screen_cur ([$row, $col])</a></strong><br />
1087     </dt>
1088     <dd>
1089     Return the current coordinates of the text cursor position and optionally
1090     set it (which is usually bad as applications don't expect that).
1091     </dd>
1092     <p></p>
1093 root 1.1 <dt><strong><a name="item_selection_mark">($row, $col) = $term-&gt;selection_mark ([$row, $col])</a></strong><br />
1094     </dt>
1095     <dt><strong><a name="item_selection_beg">($row, $col) = $term-&gt;selection_beg ([$row, $col])</a></strong><br />
1096     </dt>
1097     <dt><strong><a name="item_selection_end">($row, $col) = $term-&gt;selection_end ([$row, $col])</a></strong><br />
1098     </dt>
1099     <dd>
1100     Return the current values of the selection mark, begin or end positions,
1101     and optionally set them to new values.
1102     </dd>
1103     <p></p>
1104 root 1.25 <dt><strong><a name="item_selection_make">$term-&gt;selection_make ($eventtime[, $rectangular])</a></strong><br />
1105     </dt>
1106     <dd>
1107     Tries to make a selection as set by <a href="#item_selection_beg"><code>selection_beg</code></a> and
1108     <a href="#item_selection_end"><code>selection_end</code></a>. If <code>$rectangular</code> is true (default: false), a
1109     rectangular selection will be made. This is the prefered function to make
1110     a selection.
1111     </dd>
1112     <p></p>
1113 root 1.1 <dt><strong><a name="item_selection_grab">$success = $term-&gt;selection_grab ($eventtime)</a></strong><br />
1114     </dt>
1115     <dd>
1116 root 1.25 Try to request the primary selection text from the server (for example, as
1117     set by the next method). No visual feedback will be given. This function
1118     is mostly useful from within <code>on_sel_grab</code> hooks.
1119 root 1.1 </dd>
1120     <p></p>
1121 root 1.6 <dt><strong>$oldtext = $term-&gt;selection ([$newtext])</strong><br />
1122 root 1.1 </dt>
1123     <dd>
1124     Return the current selection text and optionally replace it by <code>$newtext</code>.
1125     </dd>
1126 root 1.19 <p></p>
1127     <dt><strong><a name="item_overlay_simple">$term-&gt;overlay_simple ($x, $y, $text)</a></strong><br />
1128     </dt>
1129 root 1.1 <dd>
1130 root 1.19 Create a simple multi-line overlay box. See the next method for details.
1131 root 1.1 </dd>
1132     <p></p>
1133 root 1.8 <dt><strong><a name="item_overlay">$term-&gt;overlay ($x, $y, $width, $height[, $rstyle[, $border]])</a></strong><br />
1134 root 1.1 </dt>
1135     <dd>
1136     Create a new (empty) overlay at the given position with the given
1137 root 1.8 width/height. <code>$rstyle</code> defines the initial rendition style
1138     (default: <code>OVERLAY_RSTYLE</code>).
1139     </dd>
1140     <dd>
1141     <p>If <code>$border</code> is <code>2</code> (default), then a decorative border will be put
1142     around the box.</p>
1143     </dd>
1144     <dd>
1145     <p>If either <code>$x</code> or <code>$y</code> is negative, then this is counted from the
1146     right/bottom side, respectively.</p>
1147 root 1.1 </dd>
1148     <dd>
1149 root 1.8 <p>This method returns an urxvt::overlay object. The overlay will be visible
1150     as long as the perl object is referenced.</p>
1151 root 1.1 </dd>
1152     <dd>
1153 root 1.9 <p>The methods currently supported on <code>urxvt::overlay</code> objects are:</p>
1154 root 1.1 </dd>
1155 root 1.9 <dl>
1156 root 1.8 <dt><strong><a name="item_set">$overlay-&gt;set ($x, $y, $text, $rend)</a></strong><br />
1157 root 1.1 </dt>
1158     <dd>
1159 root 1.8 Similar to <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> and <a href="#item_row_r"><code>$term-&gt;ROW_r</code></a> in that it puts
1160     text in rxvt-unicode's special encoding and an array of rendition values
1161     at a specific position inside the overlay.
1162 root 1.1 </dd>
1163 root 1.3 <p></p>
1164 root 1.9 <dt><strong><a name="item_hide">$overlay-&gt;hide</a></strong><br />
1165     </dt>
1166     <dd>
1167     If visible, hide the overlay, but do not destroy it.
1168     </dd>
1169     <p></p>
1170     <dt><strong><a name="item_show">$overlay-&gt;show</a></strong><br />
1171     </dt>
1172     <dd>
1173     If hidden, display the overlay again.
1174     </dd>
1175     <p></p></dl>
1176 root 1.16 <dt><strong>$popup = $term-&gt;popup ($event)</strong><br />
1177 root 1.15 </dt>
1178     <dd>
1179     Creates a new <code>urxvt::popup</code> object that implements a popup menu. The
1180     <code>$event</code> <em>must</em> be the event causing the menu to pop up (a button event,
1181     currently).
1182     </dd>
1183     <p></p>
1184 root 1.14 <dt><strong><a name="item_strwidth">$cellwidth = $term-&gt;strwidth ($string)</a></strong><br />
1185 root 1.3 </dt>
1186     <dd>
1187     Returns the number of screen-cells this string would need. Correctly
1188     accounts for wide and combining characters.
1189     </dd>
1190     <p></p>
1191 root 1.14 <dt><strong><a name="item_locale_encode">$octets = $term-&gt;locale_encode ($string)</a></strong><br />
1192 root 1.3 </dt>
1193     <dd>
1194     Convert the given text string into the corresponding locale encoding.
1195     </dd>
1196     <p></p>
1197 root 1.14 <dt><strong><a name="item_locale_decode">$string = $term-&gt;locale_decode ($octets)</a></strong><br />
1198 root 1.3 </dt>
1199     <dd>
1200     Convert the given locale-encoded octets into a perl string.
1201     </dd>
1202     <p></p>
1203 root 1.19 <dt><strong><a name="item_scr_xor_span">$term-&gt;scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])</a></strong><br />
1204     </dt>
1205     <dd>
1206     XORs the rendition values in the given span with the provided value
1207 root 1.25 (default: <code>RS_RVid</code>), which <em>MUST NOT</em> contain font styles. Useful in
1208     refresh hooks to provide effects similar to the selection.
1209 root 1.19 </dd>
1210     <p></p>
1211     <dt><strong><a name="item_scr_xor_rect">$term-&gt;scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])</a></strong><br />
1212     </dt>
1213     <dd>
1214     Similar to <a href="#item_scr_xor_span"><code>scr_xor_span</code></a>, but xors a rectangle instead. Trailing
1215     whitespace will additionally be xored with the <code>$rstyle2</code>, which defaults
1216     to <code>RS_RVid | RS_Uline</code>, which removes reverse video again and underlines
1217 root 1.25 it instead. Both styles <em>MUST NOT</em> contain font styles.
1218 root 1.19 </dd>
1219     <p></p>
1220     <dt><strong><a name="item_scr_bell">$term-&gt;scr_bell</a></strong><br />
1221     </dt>
1222     <dd>
1223     Ring the bell!
1224     </dd>
1225     <p></p>
1226 root 1.14 <dt><strong><a name="item_scr_add_lines">$term-&gt;scr_add_lines ($string)</a></strong><br />
1227     </dt>
1228     <dd>
1229     Write the given text string to the screen, as if output by the application
1230     running inside the terminal. It may not contain command sequences (escape
1231     codes), but is free to use line feeds, carriage returns and tabs. The
1232     string is a normal text string, not in locale-dependent encoding.
1233     </dd>
1234     <dd>
1235     <p>Normally its not a good idea to use this function, as programs might be
1236     confused by changes in cursor position or scrolling. Its useful inside a
1237     <code>on_add_lines</code> hook, though.</p>
1238     </dd>
1239     <p></p>
1240 root 1.35 <dt><strong><a name="item_scr_change_screen">$term-&gt;scr_change_screen ($screen)</a></strong><br />
1241     </dt>
1242     <dd>
1243     Switch to given screen - 0 primary, 1 secondary.
1244     </dd>
1245     <p></p>
1246 root 1.14 <dt><strong><a name="item_cmd_parse">$term-&gt;cmd_parse ($octets)</a></strong><br />
1247     </dt>
1248     <dd>
1249     Similar to <a href="#item_scr_add_lines"><code>scr_add_lines</code></a>, but the argument must be in the
1250     locale-specific encoding of the terminal and can contain command sequences
1251     (escape codes) that will be interpreted.
1252     </dd>
1253     <p></p>
1254 root 1.3 <dt><strong><a name="item_tt_write">$term-&gt;tt_write ($octets)</a></strong><br />
1255     </dt>
1256     <dd>
1257     Write the octets given in <code>$data</code> to the tty (i.e. as program input). To
1258 root 1.6 pass characters instead of octets, you should convert your strings first
1259     to the locale-specific encoding using <a href="#item_locale_encode"><code>$term-&gt;locale_encode</code></a>.
1260     </dd>
1261     <p></p>
1262 root 1.19 <dt><strong><a name="item_pty_ev_events">$old_events = $term-&gt;pty_ev_events ([$new_events])</a></strong><br />
1263     </dt>
1264     <dd>
1265     Replaces the event mask of the pty watcher by the given event mask. Can
1266     be used to suppress input and output handling to the pty/tty. See the
1267     description of <a href="#item_events"><code>urxvt::timer-&gt;events</code></a>. Make sure to always restore
1268     the previous value.
1269     </dd>
1270     <p></p>
1271 root 1.37 <dt><strong><a name="item_pty_fd">$fd = $term-&gt;pty_fd</a></strong><br />
1272     </dt>
1273     <dd>
1274     Returns the master file descriptor for the pty in use, or <code>-1</code> if no pty
1275     is used.
1276     </dd>
1277     <p></p>
1278 root 1.14 <dt><strong><a name="item_parent">$windowid = $term-&gt;parent</a></strong><br />
1279     </dt>
1280     <dd>
1281     Return the window id of the toplevel window.
1282     </dd>
1283     <p></p>
1284     <dt><strong><a name="item_vt">$windowid = $term-&gt;vt</a></strong><br />
1285     </dt>
1286     <dd>
1287     Return the window id of the terminal window.
1288     </dd>
1289     <p></p>
1290 root 1.29 <dt><strong><a name="item_vt_emask_add">$term-&gt;vt_emask_add ($x_event_mask)</a></strong><br />
1291     </dt>
1292     <dd>
1293     Adds the specified events to the vt event mask. Useful e.g. when you want
1294     to receive pointer events all the times:
1295     </dd>
1296     <dd>
1297     <pre>
1298     $term-&gt;vt_emask_add (urxvt::PointerMotionMask);</pre>
1299     </dd>
1300     <p></p>
1301 root 1.13 <dt><strong><a name="item_width">$window_width = $term-&gt;width</a></strong><br />
1302     </dt>
1303     <dt><strong><a name="item_height">$window_height = $term-&gt;height</a></strong><br />
1304     </dt>
1305     <dt><strong><a name="item_fwidth">$font_width = $term-&gt;fwidth</a></strong><br />
1306 root 1.6 </dt>
1307 root 1.13 <dt><strong><a name="item_fheight">$font_height = $term-&gt;fheight</a></strong><br />
1308 root 1.6 </dt>
1309 root 1.13 <dt><strong><a name="item_fbase">$font_ascent = $term-&gt;fbase</a></strong><br />
1310     </dt>
1311     <dt><strong><a name="item_nrow">$terminal_rows = $term-&gt;nrow</a></strong><br />
1312     </dt>
1313     <dt><strong><a name="item_ncol">$terminal_columns = $term-&gt;ncol</a></strong><br />
1314     </dt>
1315     <dt><strong><a name="item_focus">$has_focus = $term-&gt;focus</a></strong><br />
1316     </dt>
1317     <dt><strong><a name="item_mapped">$is_mapped = $term-&gt;mapped</a></strong><br />
1318     </dt>
1319     <dt><strong><a name="item_savelines">$max_scrollback = $term-&gt;saveLines</a></strong><br />
1320     </dt>
1321     <dt><strong><a name="item_total_rows">$nrow_plus_saveLines = $term-&gt;total_rows</a></strong><br />
1322     </dt>
1323 root 1.30 <dt><strong><a name="item_top_row">$topmost_scrollback_row = $term-&gt;top_row</a></strong><br />
1324 root 1.6 </dt>
1325     <dd>
1326 root 1.13 Return various integers describing terminal characteristics.
1327 root 1.6 </dd>
1328     <p></p>
1329 root 1.22 <dt><strong><a name="item_display_id">$x_display = $term-&gt;display_id</a></strong><br />
1330     </dt>
1331     <dd>
1332     Return the DISPLAY used by rxvt-unicode.
1333     </dd>
1334     <p></p>
1335 root 1.19 <dt><strong><a name="item_locale">$lc_ctype = $term-&gt;locale</a></strong><br />
1336     </dt>
1337     <dd>
1338     Returns the LC_CTYPE category string used by this rxvt-unicode.
1339     </dd>
1340     <p></p>
1341 root 1.22 <dt><strong><a name="item_env">$env = $term-&gt;env</a></strong><br />
1342 root 1.19 </dt>
1343     <dd>
1344 root 1.22 Returns a copy of the environment in effect for the terminal as a hashref
1345     similar to <code>\%ENV</code>.
1346 root 1.19 </dd>
1347     <p></p>
1348 root 1.15 <dt><strong><a name="item_modlevel3mask">$modifiermask = $term-&gt;ModLevel3Mask</a></strong><br />
1349     </dt>
1350     <dt><strong><a name="item_modmetamask">$modifiermask = $term-&gt;ModMetaMask</a></strong><br />
1351     </dt>
1352     <dt><strong><a name="item_modnumlockmask">$modifiermask = $term-&gt;ModNumLockMask</a></strong><br />
1353     </dt>
1354     <dd>
1355     Return the modifier masks corresponding to the ``ISO Level 3 Shift'' (often
1356     AltGr), the meta key (often Alt) and the num lock key, if applicable.
1357     </dd>
1358     <p></p>
1359 root 1.35 <dt><strong><a name="item_current_screen">$screen = $term-&gt;current_screen</a></strong><br />
1360     </dt>
1361     <dd>
1362     Returns the currently displayed screen (0 primary, 1 secondary).
1363     </dd>
1364     <p></p>
1365 root 1.36 <dt><strong><a name="item_hidden_cursor">$cursor_is_hidden = $term-&gt;hidden_cursor</a></strong><br />
1366     </dt>
1367     <dd>
1368     Returns wether the cursor is currently hidden or not.
1369     </dd>
1370     <p></p>
1371 root 1.6 <dt><strong><a name="item_view_start">$view_start = $term-&gt;view_start ([$newvalue])</a></strong><br />
1372     </dt>
1373     <dd>
1374 root 1.30 Returns the row number of the topmost displayed line. Maximum value is
1375     <code>0</code>, which displays the normal terminal contents. Lower values scroll
1376 root 1.6 this many lines into the scrollback buffer.
1377     </dd>
1378     <p></p>
1379     <dt><strong><a name="item_want_refresh">$term-&gt;want_refresh</a></strong><br />
1380     </dt>
1381     <dd>
1382     Requests a screen refresh. At the next opportunity, rxvt-unicode will
1383     compare the on-screen display with its stored representation. If they
1384     differ, it redraws the differences.
1385     </dd>
1386     <dd>
1387     <p>Used after changing terminal contents to display them.</p>
1388     </dd>
1389     <p></p>
1390     <dt><strong><a name="item_row_t">$text = $term-&gt;ROW_t ($row_number[, $new_text[, $start_col]])</a></strong><br />
1391     </dt>
1392     <dd>
1393     Returns the text of the entire row with number <code>$row_number</code>. Row <code>0</code>
1394     is the topmost terminal line, row <code>$term-&gt;$ncol-1</code> is the bottommost
1395     terminal line. The scrollback buffer starts at line <code>-1</code> and extends to
1396 root 1.30 line <code>-$term-&gt;nsaved</code>. Nothing will be returned if a nonexistent line
1397 root 1.9 is requested.
1398 root 1.6 </dd>
1399     <dd>
1400     <p>If <code>$new_text</code> is specified, it will replace characters in the current
1401     line, starting at column <code>$start_col</code> (default <code>0</code>), which is useful
1402 root 1.8 to replace only parts of a line. The font index in the rendition will
1403 root 1.6 automatically be updated.</p>
1404     </dd>
1405     <dd>
1406 root 1.37 <p><a href="#item__24text"><code>$text</code></a> is in a special encoding: tabs and wide characters that use more
1407     than one cell when displayed are padded with <code>$urxvt::NOCHAR</code> (chr 65535)
1408 root 1.35 characters. Characters with combining characters and other characters that
1409     do not fit into the normal tetx encoding will be replaced with characters
1410     in the private use area.</p>
1411 root 1.6 </dd>
1412     <dd>
1413     <p>You have to obey this encoding when changing text. The advantage is
1414     that <code>substr</code> and similar functions work on screen cells and not on
1415     characters.</p>
1416     </dd>
1417     <dd>
1418 root 1.17 <p>The methods <a href="#item_special_encode"><code>$term-&gt;special_encode</code></a> and <a href="#item_special_decode"><code>$term-&gt;special_decode</code></a>
1419 root 1.6 can be used to convert normal strings into this encoding and vice versa.</p>
1420     </dd>
1421     <p></p>
1422     <dt><strong><a name="item_row_r">$rend = $term-&gt;ROW_r ($row_number[, $new_rend[, $start_col]])</a></strong><br />
1423     </dt>
1424     <dd>
1425     Like <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a>, but returns an arrayref with rendition
1426     bitsets. Rendition bitsets contain information about colour, font, font
1427     styles and similar information. See also <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a>.
1428     </dd>
1429     <dd>
1430     <p>When setting rendition, the font mask will be ignored.</p>
1431     </dd>
1432     <dd>
1433 root 1.8 <p>See the section on RENDITION, above.</p>
1434 root 1.6 </dd>
1435     <p></p>
1436     <dt><strong><a name="item_row_l">$length = $term-&gt;ROW_l ($row_number[, $new_length])</a></strong><br />
1437     </dt>
1438     <dd>
1439 root 1.9 Returns the number of screen cells that are in use (``the line
1440     length''). Unlike the urxvt core, this returns <a href="#item_ncol"><code>$term-&gt;ncol</code></a> if the
1441     line is joined with the following one.
1442     </dd>
1443     <p></p>
1444     <dt><strong><a name="item_is_longer">$bool = $term-&gt;is_longer ($row_number)</a></strong><br />
1445     </dt>
1446     <dd>
1447     Returns true if the row is part of a multiple-row logical ``line'' (i.e.
1448     joined with the following row), which means all characters are in use
1449     and it is continued on the next row (and possibly a continuation of the
1450     previous row(s)).
1451 root 1.6 </dd>
1452     <p></p>
1453 root 1.9 <dt><strong><a name="item_line">$line = $term-&gt;line ($row_number)</a></strong><br />
1454     </dt>
1455     <dd>
1456     Create and return a new <code>urxvt::line</code> object that stores information
1457     about the logical line that row <code>$row_number</code> is part of. It supports the
1458     following methods:
1459     </dd>
1460     <dl>
1461 root 1.14 <dt><strong><a name="item_t">$text = $line-&gt;t ([$new_text])</a></strong><br />
1462 root 1.9 </dt>
1463     <dd>
1464 root 1.14 Returns or replaces the full text of the line, similar to <a href="#item_row_t"><code>ROW_t</code></a>
1465 root 1.9 </dd>
1466     <p></p>
1467 root 1.14 <dt><strong><a name="item_r">$rend = $line-&gt;r ([$new_rend])</a></strong><br />
1468 root 1.9 </dt>
1469     <dd>
1470 root 1.14 Returns or replaces the full rendition array of the line, similar to <a href="#item_row_r"><code>ROW_r</code></a>
1471 root 1.9 </dd>
1472     <p></p>
1473     <dt><strong><a name="item_l">$length = $line-&gt;l</a></strong><br />
1474     </dt>
1475     <dd>
1476     Returns the length of the line in cells, similar to <a href="#item_row_l"><code>ROW_l</code></a>.
1477     </dd>
1478     <p></p>
1479     <dt><strong><a name="item_beg">$rownum = $line-&gt;beg</a></strong><br />
1480     </dt>
1481     <dt><strong><a name="item_end">$rownum = $line-&gt;end</a></strong><br />
1482     </dt>
1483     <dd>
1484     Return the row number of the first/last row of the line, respectively.
1485     </dd>
1486     <p></p>
1487     <dt><strong><a name="item_offset_of">$offset = $line-&gt;offset_of ($row, $col)</a></strong><br />
1488     </dt>
1489     <dd>
1490     Returns the character offset of the given row|col pair within the logical
1491 root 1.25 line. Works for rows outside the line, too, and returns corresponding
1492     offsets outside the string.
1493 root 1.9 </dd>
1494     <p></p>
1495     <dt><strong><a name="item_coord_of">($row, $col) = $line-&gt;coord_of ($offset)</a></strong><br />
1496     </dt>
1497     <dd>
1498     Translates a string offset into terminal coordinates again.
1499     </dd>
1500     <p></p></dl>
1501 root 1.17 <dt><strong><a name="item_special_encode">$text = $term-&gt;special_encode $string</a></strong><br />
1502 root 1.6 </dt>
1503     <dd>
1504     Converts a perl string into the special encoding used by rxvt-unicode,
1505     where one character corresponds to one screen cell. See
1506     <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> for details.
1507     </dd>
1508     <p></p>
1509     <dt><strong><a name="item_special_decode">$string = $term-&gt;special_decode $text</a></strong><br />
1510     </dt>
1511     <dd>
1512     Converts rxvt-unicodes text reprsentation into a perl string. See
1513     <a href="#item_row_t"><code>$term-&gt;ROW_t</code></a> for details.
1514     </dd>
1515 root 1.17 <p></p>
1516 root 1.40 <dt><strong><a name="item_grab_button">$success = $term-&gt;grab_button ($button, $modifiermask[, $window = $term-&gt;vt])</a></strong><br />
1517     </dt>
1518     <dt><strong><a name="item_ungrab_button">$term-&gt;ungrab_button ($button, $modifiermask[, $window = $term-&gt;vt])</a></strong><br />
1519 root 1.17 </dt>
1520     <dd>
1521 root 1.40 Register/unregister a synchronous button grab. See the XGrabButton
1522     manpage.
1523 root 1.17 </dd>
1524     <p></p>
1525     <dt><strong><a name="item_grab">$success = $term-&gt;grab ($eventtime[, $sync])</a></strong><br />
1526     </dt>
1527     <dd>
1528     Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1529     synchronous (<code>$sync</code> is true). Also remembers the grab timestampe.
1530     </dd>
1531     <p></p>
1532     <dt><strong><a name="item_allow_events_async">$term-&gt;allow_events_async</a></strong><br />
1533     </dt>
1534     <dd>
1535     Calls XAllowEvents with AsyncBoth for the most recent grab.
1536     </dd>
1537     <p></p>
1538     <dt><strong><a name="item_allow_events_sync">$term-&gt;allow_events_sync</a></strong><br />
1539     </dt>
1540     <dd>
1541     Calls XAllowEvents with SyncBoth for the most recent grab.
1542     </dd>
1543     <p></p>
1544     <dt><strong><a name="item_allow_events_replay">$term-&gt;allow_events_replay</a></strong><br />
1545     </dt>
1546     <dd>
1547     Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1548     recent grab.
1549     </dd>
1550     <p></p>
1551     <dt><strong><a name="item_ungrab">$term-&gt;ungrab</a></strong><br />
1552     </dt>
1553     <dd>
1554     Calls XUngrab for the most recent grab. Is called automatically on
1555     evaluation errors, as it is better to lose the grab in the error case as
1556     the session.
1557     </dd>
1558 root 1.35 <p></p>
1559     <dt><strong><a name="item_xinternatom">$atom = $term-&gt;XInternAtom ($atom_name[, $only_if_exists])</a></strong><br />
1560     </dt>
1561     <dt><strong><a name="item_xgetatomname">$atom_name = $term-&gt;XGetAtomName ($atom)</a></strong><br />
1562     </dt>
1563     <dt><strong><a name="item_xlistproperties">@atoms = $term-&gt;XListProperties ($window)</a></strong><br />
1564     </dt>
1565     <dt><strong><a name="item_xgetwindowproperty">($type,$format,$octets) = $term-&gt;XGetWindowProperty ($window, $property)</a></strong><br />
1566     </dt>
1567     <dt><strong><a name="item_xchangewindowproperty">$term-&gt;XChangeWindowProperty ($window, $property, $type, $format, $octets)</a></strong><br />
1568     </dt>
1569     <dt><strong><a name="item_xdeleteproperty">$term-&gt;XDeleteProperty ($window, $property)</a></strong><br />
1570     </dt>
1571     <dt><strong><a name="item_defaultrootwindow">$window = $term-&gt;DefaultRootWindow</a></strong><br />
1572     </dt>
1573     <dt><strong><a name="item_xreparentwindow">$term-&gt;XReparentWindow ($window, $parent, [$x, $y])</a></strong><br />
1574     </dt>
1575     <dt><strong><a name="item_xmapwindow">$term-&gt;XMapWindow ($window)</a></strong><br />
1576     </dt>
1577     <dt><strong><a name="item_xunmapwindow">$term-&gt;XUnmapWindow ($window)</a></strong><br />
1578     </dt>
1579     <dt><strong><a name="item_xmoveresizewindow">$term-&gt;XMoveResizeWindow ($window, $x, $y, $width, $height)</a></strong><br />
1580     </dt>
1581     <dt><strong><a name="item_xtranslatecoordinates">($x, $y, $child_window) = $term-&gt;XTranslateCoordinates ($src, $dst, $x, $y)</a></strong><br />
1582     </dt>
1583     <dt><strong><a name="item_xchangeinput">$term-&gt;XChangeInput ($window, $add_events[, $del_events])</a></strong><br />
1584     </dt>
1585     <dd>
1586     Various X or X-related functions. The <code>$term</code> object only serves as
1587     the source of the display, otherwise those functions map more-or-less
1588     directory onto the X functions of the same name.
1589     </dd>
1590 root 1.6 <p></p></dl>
1591     <p>
1592     </p>
1593 root 1.15 <h2><a name="the_urxvt__popup_class">The <code>urxvt::popup</code> Class</a></h2>
1594 root 1.21 <dl>
1595     <dt><strong><a name="item_add_title">$popup-&gt;add_title ($title)</a></strong><br />
1596     </dt>
1597     <dd>
1598     Adds a non-clickable title to the popup.
1599     </dd>
1600     <p></p>
1601     <dt><strong><a name="item_add_separator">$popup-&gt;add_separator ([$sepchr])</a></strong><br />
1602     </dt>
1603     <dd>
1604     Creates a separator, optionally using the character given as <code>$sepchr</code>.
1605     </dd>
1606     <p></p>
1607     <dt><strong><a name="item_add_button">$popup-&gt;add_button ($text, $cb)</a></strong><br />
1608     </dt>
1609     <dd>
1610     Adds a clickable button to the popup. <code>$cb</code> is called whenever it is
1611     selected.
1612     </dd>
1613     <p></p>
1614     <dt><strong><a name="item_add_toggle">$popup-&gt;add_toggle ($text, $cb, $initial_value)</a></strong><br />
1615     </dt>
1616     <dd>
1617     Adds a toggle/checkbox item to the popup. Teh callback gets called
1618     whenever it gets toggled, with a boolean indicating its value as its first
1619     argument.
1620     </dd>
1621     <p></p>
1622     <dt><strong>$popup-&gt;show</strong><br />
1623     </dt>
1624     <dd>
1625     Displays the popup (which is initially hidden).
1626     </dd>
1627     <p></p></dl>
1628 root 1.15 <p>
1629     </p>
1630 root 1.1 <h2><a name="the_urxvt__timer_class">The <code>urxvt::timer</code> Class</a></h2>
1631     <p>This class implements timer watchers/events. Time is represented as a
1632     fractional number of seconds since the epoch. Example:</p>
1633     <pre>
1634 root 1.8 $term-&gt;{overlay} = $term-&gt;overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
1635 root 1.1 $term-&gt;{timer} = urxvt::timer
1636     -&gt;new
1637 root 1.8 -&gt;interval (1)
1638 root 1.1 -&gt;cb (sub {
1639 root 1.8 $term-&gt;{overlay}-&gt;set (0, 0,
1640     sprintf &quot;%2d:%02d:%02d&quot;, (localtime urxvt::NOW)[2,1,0]);
1641 root 1.1 });</pre>
1642     <dl>
1643     <dt><strong><a name="item__24timer__3d_new_urxvt_3a_3atimer">$timer = new urxvt::timer</a></strong><br />
1644     </dt>
1645     <dd>
1646 root 1.8 Create a new timer object in started state. It is scheduled to fire
1647     immediately.
1648 root 1.1 </dd>
1649     <p></p>
1650     <dt><strong><a name="item_cb">$timer = $timer-&gt;cb (sub { my ($timer) = @_; ... })</a></strong><br />
1651     </dt>
1652     <dd>
1653     Set the callback to be called when the timer triggers.
1654     </dd>
1655     <p></p>
1656     <dt><strong><a name="item_at">$tstamp = $timer-&gt;at</a></strong><br />
1657     </dt>
1658     <dd>
1659     Return the time this watcher will fire next.
1660     </dd>
1661     <p></p>
1662 root 1.8 <dt><strong>$timer = $timer-&gt;set ($tstamp)</strong><br />
1663 root 1.1 </dt>
1664     <dd>
1665     Set the time the event is generated to $tstamp.
1666     </dd>
1667     <p></p>
1668 root 1.8 <dt><strong><a name="item_interval">$timer = $timer-&gt;interval ($interval)</a></strong><br />
1669     </dt>
1670     <dd>
1671     Normally (and when <code>$interval</code> is <code>0</code>), the timer will automatically
1672     stop after it has fired once. If <code>$interval</code> is non-zero, then the timer
1673     is automatically rescheduled at the given intervals.
1674     </dd>
1675     <p></p>
1676 root 1.1 <dt><strong><a name="item_start">$timer = $timer-&gt;start</a></strong><br />
1677     </dt>
1678     <dd>
1679     Start the timer.
1680     </dd>
1681     <p></p>
1682     <dt><strong>$timer = $timer-&gt;start ($tstamp)</strong><br />
1683     </dt>
1684     <dd>
1685     Set the event trigger time to <code>$tstamp</code> and start the timer.
1686     </dd>
1687     <p></p>
1688 root 1.33 <dt><strong><a name="item_after">$timer = $timer-&gt;after ($delay)</a></strong><br />
1689     </dt>
1690     <dd>
1691     Like <a href="#item_start"><code>start</code></a>, but sets the expiry timer to c&lt;urxvt::NOW + $delay&gt;.
1692     </dd>
1693     <p></p>
1694 root 1.1 <dt><strong><a name="item_stop">$timer = $timer-&gt;stop</a></strong><br />
1695     </dt>
1696     <dd>
1697     Stop the timer.
1698     </dd>
1699     <p></p></dl>
1700     <p>
1701     </p>
1702     <h2><a name="the_urxvt__iow_class">The <code>urxvt::iow</code> Class</a></h2>
1703     <p>This class implements io watchers/events. Example:</p>
1704     <pre>
1705     $term-&gt;{socket} = ...
1706     $term-&gt;{iow} = urxvt::iow
1707     -&gt;new
1708     -&gt;fd (fileno $term-&gt;{socket})
1709 root 1.19 -&gt;events (urxvt::EVENT_READ)
1710 root 1.1 -&gt;start
1711     -&gt;cb (sub {
1712     my ($iow, $revents) = @_;
1713     # $revents must be 1 here, no need to check
1714     sysread $term-&gt;{socket}, my $buf, 8192
1715     or end-of-file;
1716     });</pre>
1717     <dl>
1718     <dt><strong><a name="item__24iow__3d_new_urxvt_3a_3aiow">$iow = new urxvt::iow</a></strong><br />
1719     </dt>
1720     <dd>
1721     Create a new io watcher object in stopped state.
1722     </dd>
1723     <p></p>
1724     <dt><strong>$iow = $iow-&gt;cb (sub { my ($iow, $reventmask) = @_; ... })</strong><br />
1725     </dt>
1726     <dd>
1727     Set the callback to be called when io events are triggered. <code>$reventmask</code>
1728     is a bitset as described in the <a href="#item_events"><code>events</code></a> method.
1729     </dd>
1730     <p></p>
1731     <dt><strong><a name="item_fd">$iow = $iow-&gt;fd ($fd)</a></strong><br />
1732     </dt>
1733     <dd>
1734     Set the filedescriptor (not handle) to watch.
1735     </dd>
1736     <p></p>
1737     <dt><strong><a name="item_events">$iow = $iow-&gt;events ($eventmask)</a></strong><br />
1738     </dt>
1739     <dd>
1740 root 1.19 Set the event mask to watch. The only allowed values are
1741     <code>urxvt::EVENT_READ</code> and <code>urxvt::EVENT_WRITE</code>, which might be ORed
1742     together, or <code>urxvt::EVENT_NONE</code>.
1743 root 1.1 </dd>
1744     <p></p>
1745     <dt><strong>$iow = $iow-&gt;start</strong><br />
1746     </dt>
1747     <dd>
1748     Start watching for requested events on the given handle.
1749     </dd>
1750     <p></p>
1751     <dt><strong>$iow = $iow-&gt;stop</strong><br />
1752     </dt>
1753     <dd>
1754     Stop watching for events on the given filehandle.
1755     </dd>
1756     <p></p></dl>
1757     <p>
1758     </p>
1759 root 1.34 <h2><a name="the_urxvt__iw_class">The <code>urxvt::iw</code> Class</a></h2>
1760     <p>This class implements idle watchers, that get called automatically when
1761     the process is idle. They should return as fast as possible, after doing
1762     some useful work.</p>
1763     <dl>
1764     <dt><strong><a name="item__24iw__3d_new_urxvt_3a_3aiw">$iw = new urxvt::iw</a></strong><br />
1765     </dt>
1766     <dd>
1767     Create a new idle watcher object in stopped state.
1768     </dd>
1769     <p></p>
1770     <dt><strong>$iw = $iw-&gt;cb (sub { my ($iw) = @_; ... })</strong><br />
1771     </dt>
1772     <dd>
1773     Set the callback to be called when the watcher triggers.
1774     </dd>
1775     <p></p>
1776     <dt><strong>$timer = $timer-&gt;start</strong><br />
1777     </dt>
1778     <dd>
1779     Start the watcher.
1780     </dd>
1781     <p></p>
1782     <dt><strong>$timer = $timer-&gt;stop</strong><br />
1783     </dt>
1784     <dd>
1785     Stop the watcher.
1786     </dd>
1787     <p></p></dl>
1788     <p>
1789     </p>
1790     <h2><a name="the_urxvt__pw_class">The <code>urxvt::pw</code> Class</a></h2>
1791     <p>This class implements process watchers. They create an event whenever a
1792     process exits, after which they stop automatically.</p>
1793     <pre>
1794     my $pid = fork;
1795     ...
1796     $term-&gt;{pw} = urxvt::pw
1797     -&gt;new
1798     -&gt;start ($pid)
1799     -&gt;cb (sub {
1800     my ($pw, $exit_status) = @_;
1801     ...
1802     });</pre>
1803     <dl>
1804     <dt><strong><a name="item__24pw__3d_new_urxvt_3a_3apw">$pw = new urxvt::pw</a></strong><br />
1805     </dt>
1806     <dd>
1807     Create a new process watcher in stopped state.
1808     </dd>
1809     <p></p>
1810     <dt><strong>$pw = $pw-&gt;cb (sub { my ($pw, $exit_status) = @_; ... })</strong><br />
1811     </dt>
1812     <dd>
1813     Set the callback to be called when the timer triggers.
1814     </dd>
1815     <p></p>
1816     <dt><strong>$pw = $timer-&gt;start ($pid)</strong><br />
1817     </dt>
1818     <dd>
1819     Tells the wqtcher to start watching for process <code>$pid</code>.
1820     </dd>
1821     <p></p>
1822     <dt><strong>$pw = $pw-&gt;stop</strong><br />
1823     </dt>
1824     <dd>
1825     Stop the watcher.
1826     </dd>
1827     <p></p></dl>
1828     <p>
1829     </p>
1830 root 1.1 <hr />
1831 root 1.2 <h1><a name="environment">ENVIRONMENT</a></h1>
1832     <p>
1833     </p>
1834     <h2><a name="urxvt_perl_verbosity">URXVT_PERL_VERBOSITY</a></h2>
1835     <p>This variable controls the verbosity level of the perl extension. Higher
1836     numbers indicate more verbose output.</p>
1837 root 1.10 <dl>
1838 root 1.17 <dt><strong><a name="item__3d_3d_0__2d_fatal_messages">== 0 - fatal messages</a></strong><br />
1839 root 1.10 </dt>
1840 root 1.17 <dt><strong><a name="item__3e_3d_3__2d_script_loading_and_management">&gt;= 3 - script loading and management</a></strong><br />
1841 root 1.10 </dt>
1842 root 1.25 <dt><strong><a name="item__3e_3d10__2d_all_called_hooks">&gt;=10 - all called hooks</a></strong><br />
1843     </dt>
1844     <dt><strong><a name="item__3e_3d11__2d_hook_reutrn_values">&gt;=11 - hook reutrn values</a></strong><br />
1845 root 1.10 </dt>
1846     </dl>
1847 root 1.2 <p>
1848     </p>
1849     <hr />
1850 root 1.1 <h1><a name="author">AUTHOR</a></h1>
1851     <pre>
1852     Marc Lehmann &lt;pcg@goof.com&gt;
1853     <a href="http://software.schmorp.de/pkg/rxvt-unicode">http://software.schmorp.de/pkg/rxvt-unicode</a></pre>
1854    
1855     </body>
1856    
1857     </html>