ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/doc/rxvtperl.3.man.in
Revision: 1.3
Committed: Mon Jan 2 19:36:07 2006 UTC (18 years, 6 months ago) by root
Branch: MAIN
Changes since 1.2: +48 -16 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 .\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.14
2 .\"
3 .\" Standard preamble:
4 .\" ========================================================================
5 .de Sh \" Subsection heading
6 .br
7 .if t .Sp
8 .ne 5
9 .PP
10 \fB\\$1\fR
11 .PP
12 ..
13 .de Sp \" Vertical space (when we can't use .PP)
14 .if t .sp .5v
15 .if n .sp
16 ..
17 .de Vb \" Begin verbatim text
18 .ft CW
19 .nf
20 .ne \\$1
21 ..
22 .de Ve \" End verbatim text
23 .ft R
24 .fi
25 ..
26 .\" Set up some character translations and predefined strings. \*(-- will
27 .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
28 .\" double quote, and \*(R" will give a right double quote. | will give a
29 .\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
30 .\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
31 .\" expand to `' in nroff, nothing in troff, for use with C<>.
32 .tr \(*W-|\(bv\*(Tr
33 .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
34 .ie n \{\
35 . ds -- \(*W-
36 . ds PI pi
37 . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
38 . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
39 . ds L" ""
40 . ds R" ""
41 . ds C` ""
42 . ds C' ""
43 'br\}
44 .el\{\
45 . ds -- \|\(em\|
46 . ds PI \(*p
47 . ds L" ``
48 . ds R" ''
49 'br\}
50 .\"
51 .\" If the F register is turned on, we'll generate index entries on stderr for
52 .\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
53 .\" entries marked with X<> in POD. Of course, you'll have to process the
54 .\" output yourself in some meaningful fashion.
55 .if \nF \{\
56 . de IX
57 . tm Index:\\$1\t\\n%\t"\\$2"
58 ..
59 . nr % 0
60 . rr F
61 .\}
62 .\"
63 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
64 .\" way too many mistakes in technical documents.
65 .hy 0
66 .if n .na
67 .\"
68 .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
69 .\" Fear. Run. Save yourself. No user-serviceable parts.
70 . \" fudge factors for nroff and troff
71 .if n \{\
72 . ds #H 0
73 . ds #V .8m
74 . ds #F .3m
75 . ds #[ \f1
76 . ds #] \fP
77 .\}
78 .if t \{\
79 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
80 . ds #V .6m
81 . ds #F 0
82 . ds #[ \&
83 . ds #] \&
84 .\}
85 . \" simple accents for nroff and troff
86 .if n \{\
87 . ds ' \&
88 . ds ` \&
89 . ds ^ \&
90 . ds , \&
91 . ds ~ ~
92 . ds /
93 .\}
94 .if t \{\
95 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
96 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
97 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
98 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
99 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
100 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
101 .\}
102 . \" troff and (daisy-wheel) nroff accents
103 .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
104 .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
105 .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
106 .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
107 .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
108 .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
109 .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
110 .ds ae a\h'-(\w'a'u*4/10)'e
111 .ds Ae A\h'-(\w'A'u*4/10)'E
112 . \" corrections for vroff
113 .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
114 .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
115 . \" for low resolution devices (crt and lpr)
116 .if \n(.H>23 .if \n(.V>19 \
117 \{\
118 . ds : e
119 . ds 8 ss
120 . ds o a
121 . ds d- d\h'-1'\(ga
122 . ds D- D\h'-1'\(hy
123 . ds th \o'bp'
124 . ds Th \o'LP'
125 . ds ae ae
126 . ds Ae AE
127 .\}
128 .rm #[ #] #H #V #F C
129 .\" ========================================================================
130 .\"
131 .IX Title "rxvt 3"
132 .TH rxvt 3 "2006-01-02" "6.2" "RXVT-UNICODE"
133 .SH "NAME"
134 rxvtperl \- rxvt\-unicode's embedded perl interpreter
135 .SH "SYNOPSIS"
136 .IX Header "SYNOPSIS"
137 * Put your scripts into \fI@@RXVT_LIBDIR@@/urxvt/perl\-ext/\fR, they will be loaded automatically.
138 .PP
139 * Scripts are evaluated in a 'use strict' and 'use utf8' environment, and
140 thus must be encoded as \s-1UTF\-8\s0.
141 .PP
142 .Vb 4
143 \& sub on_sel_grab {
144 \& warn "you selected ", $_[0]->selection;
145 \& ()
146 \& }
147 .Ve
148 .PP
149 .Vb 1
150 \& 1
151 .Ve
152 .SH "DESCRIPTION"
153 .IX Header "DESCRIPTION"
154 On startup, @@RXVT_NAME@@ will scan \fI@@RXVT_LIBDIR@@/urxvt/perl\-ext/\fR
155 for files and will load them. Everytime a terminal object gets created,
156 the directory specified by the \f(CW\*(C`perl\-lib\*(C'\fR resource will be additionally
157 scanned.
158 .PP
159 Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
160 scripts will be shared for all terminals.
161 .PP
162 Hooks in scripts specified by \f(CW\*(C`perl\-lib\*(C'\fR will only be called for the
163 terminals created with that specific option value.
164 .Sh "General \s-1API\s0 Considerations"
165 .IX Subsection "General API Considerations"
166 All objects (such as terminals, time watchers etc.) are typical
167 reference-to-hash objects. The hash can be used to store anything you
168 like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or
169 \&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and must not be accessed or
170 modified).
171 .PP
172 When objects are destroyed on the \*(C+ side, the perl object hashes are
173 emptied, so its best to store related objects such as time watchers and
174 the like inside the terminal object so they get destroyed as soon as the
175 terminal is destroyed.
176 .Sh "Hooks"
177 .IX Subsection "Hooks"
178 The following subroutines can be declared in loaded scripts, and will be called
179 whenever the relevant event happens.
180 .PP
181 All of them must return a boolean value. If it is true, then the event
182 counts as being \fIconsumed\fR, and the invocation of other hooks is skipped,
183 and the relevant action might not be carried out by the \*(C+ code.
184 .PP
185 When in doubt, return a false value (preferably \f(CW\*(C`()\*(C'\fR).
186 .ie n .IP "on_init $term" 4
187 .el .IP "on_init \f(CW$term\fR" 4
188 .IX Item "on_init $term"
189 Called after a new terminal object has been initialized, but before
190 windows are created or the command gets run.
191 .ie n .IP "on_reset $term" 4
192 .el .IP "on_reset \f(CW$term\fR" 4
193 .IX Item "on_reset $term"
194 Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or
195 control sequences. Here is where you can react on changes to size-related
196 variables.
197 .ie n .IP "on_start $term" 4
198 .el .IP "on_start \f(CW$term\fR" 4
199 .IX Item "on_start $term"
200 Called at the very end of initialisation of a new terminal, just before
201 returning to the mainloop.
202 .ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4
203 .el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4
204 .IX Item "on_sel_make $term, $eventtime"
205 Called whenever a selection has been made by the user, but before the
206 selection text is copied, so changes to the beginning, end or type of the
207 selection will be honored.
208 .Sp
209 Returning a true value aborts selection making by urxvt, in which case you
210 have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR.
211 .ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4
212 .el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4
213 .IX Item "on_sel_grab $term, $eventtime"
214 Called whenever a selection has been copied, but before the selection is
215 requested from the server. The selection text can be queried and changed
216 by calling \f(CW\*(C`$term\->selection\*(C'\fR.
217 .Sp
218 Returning a true value aborts selection grabbing. It will still be hilighted.
219 .ie n .IP "on_focus_in $term" 4
220 .el .IP "on_focus_in \f(CW$term\fR" 4
221 .IX Item "on_focus_in $term"
222 Called whenever the window gets the keyboard focus, before urxvt does
223 focus in processing.
224 .ie n .IP "on_focus_out $term" 4
225 .el .IP "on_focus_out \f(CW$term\fR" 4
226 .IX Item "on_focus_out $term"
227 Called wheneever the window loses keyboard focus, before urxvt does focus
228 out processing.
229 .ie n .IP "on_view_change $term\fR, \f(CW$offset" 4
230 .el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4
231 .IX Item "on_view_change $term, $offset"
232 Called whenever the view offset changes, i..e the user or program
233 scrolls. Offset \f(CW0\fR means display the normal terminal, positive values
234 show this many lines of scrollback.
235 .ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4
236 .el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4
237 .IX Item "on_scroll_back $term, $lines, $saved"
238 Called whenever lines scroll out of the terminal area into the scrollback
239 buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger
240 than the scroll back buffer or the terminal.
241 .Sp
242 It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1,
243 \&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total
244 number of lines that will be in the scrollback buffer.
245 .ie n .IP "on_tty_activity $term *NYI*" 4
246 .el .IP "on_tty_activity \f(CW$term\fR *NYI*" 4
247 .IX Item "on_tty_activity $term *NYI*"
248 Called whenever the program(s) running in the urxvt window send output.
249 .ie n .IP "on_refresh_begin $term" 4
250 .el .IP "on_refresh_begin \f(CW$term\fR" 4
251 .IX Item "on_refresh_begin $term"
252 Called just before the screen gets redrawn. Can be used for overlay
253 or similar effects by modify terminal contents in refresh_begin, and
254 restoring them in refresh_end. The built-in overlay and selection display
255 code is run after this hook, and takes precedence.
256 .ie n .IP "on_refresh_end $term" 4
257 .el .IP "on_refresh_end \f(CW$term\fR" 4
258 .IX Item "on_refresh_end $term"
259 Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR.
260 .ie n .Sh "Functions in the ""urxvt"" Package"
261 .el .Sh "Functions in the \f(CWurxvt\fP Package"
262 .IX Subsection "Functions in the urxvt Package"
263 .ie n .IP "urxvt::fatal $errormessage" 4
264 .el .IP "urxvt::fatal \f(CW$errormessage\fR" 4
265 .IX Item "urxvt::fatal $errormessage"
266 Fatally aborts execution with the given error message. Avoid at all
267 costs! The only time this is acceptable is when the terminal process
268 starts up.
269 .ie n .IP "urxvt::warn $string" 4
270 .el .IP "urxvt::warn \f(CW$string\fR" 4
271 .IX Item "urxvt::warn $string"
272 Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a
273 newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function
274 that calls this function.
275 .Sp
276 Using this function has the advantage that its output ends up in the
277 correct place, e.g. on stderr of the connecting urxvtc client.
278 .IP "$time = urxvt::NOW" 4
279 .IX Item "$time = urxvt::NOW"
280 Returns the \*(L"current time\*(R" (as per the event loop).
281 .ie n .Sh "The ""urxvt::term"" Class"
282 .el .Sh "The \f(CWurxvt::term\fP Class"
283 .IX Subsection "The urxvt::term Class"
284 .ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4
285 .el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4
286 .IX Item "$value = $term->resource ($name[, $newval])"
287 Returns the current resource value associated with a given name and
288 optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR
289 hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR.
290 .Sp
291 The new value must be properly encoded to a suitable character encoding
292 before passing it to this method. Similarly, the returned value may need
293 to be converted from the used encoding to text.
294 .Sp
295 Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified
296 as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will
297 likely change).
298 .Sp
299 Please note that resource strings will currently only be freed when the
300 terminal is destroyed, so changing options frequently will eat memory.
301 .Sp
302 Here is a a likely non-exhaustive list of resource names, not all of which
303 are supported in every build, please see the source to see the actual
304 list:
305 .Sp
306 .Vb 12
307 \& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
308 \& borderLess color cursorBlink cursorUnderline cutchars delete_key
309 \& display_name embed ext_bwidth fade font geometry hold iconName
310 \& imFont imLocale inputMethod insecure int_bwidth intensityStyles
311 \& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8
312 \& modifier mouseWheelScrollPage name pastableTabs path perl perl_eval
313 \& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
314 \& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
315 \& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
316 \& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
317 \& shade term_name title transparent transparent_all tripleclickwords
318 \& utmpInhibit visualBell
319 .Ve
320 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4
321 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4
322 .IX Item "($row, $col) = $term->selection_mark ([$row, $col])"
323 .PD 0
324 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4
325 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4
326 .IX Item "($row, $col) = $term->selection_beg ([$row, $col])"
327 .ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4
328 .el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4
329 .IX Item "($row, $col) = $term->selection_end ([$row, $col])"
330 .PD
331 Return the current values of the selection mark, begin or end positions,
332 and optionally set them to new values.
333 .ie n .IP "$success = $term\->selection_grab ($eventtime)" 4
334 .el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4
335 .IX Item "$success = $term->selection_grab ($eventtime)"
336 Try to request the primary selection from the server (for example, as set
337 by the next method).
338 .ie n .IP "$oldtext = $term\->selection ([$newtext])" 4
339 .el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4
340 .IX Item "$oldtext = $term->selection ([$newtext])"
341 Return the current selection text and optionally replace it by \f(CW$newtext\fR.
342 .ie n .IP "$term\->scr_overlay ($x, $y\fR, \f(CW$text)" 4
343 .el .IP "$term\->scr_overlay ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
344 .IX Item "$term->scr_overlay ($x, $y, $text)"
345 Create a simple multi-line overlay box. See the next method for details.
346 .ie n .IP "$term\->scr_overlay_new ($x, $y\fR, \f(CW$width\fR, \f(CW$height)" 4
347 .el .IP "$term\->scr_overlay_new ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR)" 4
348 .IX Item "$term->scr_overlay_new ($x, $y, $width, $height)"
349 Create a new (empty) overlay at the given position with the given
350 width/height. A border will be put around the box. If either \f(CW$x\fR or
351 \&\f(CW$y\fR is negative, then this is counted from the right/bottom side,
352 respectively.
353 .IP "$term\->scr_overlay_off" 4
354 .IX Item "$term->scr_overlay_off"
355 Switch the overlay off again.
356 .ie n .IP "$term\->scr_overlay_set_char ($x, $y\fR, \f(CW$char\fR, \f(CW$rend = \s-1OVERLAY_RSTYLE\s0)" 4
357 .el .IP "$term\->scr_overlay_set_char ($x, \f(CW$y\fR, \f(CW$char\fR, \f(CW$rend\fR = \s-1OVERLAY_RSTYLE\s0)" 4
358 .IX Item "$term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)"
359 Put a single character (specified numerically) at the given overlay
360 position.
361 .ie n .IP "$term\->scr_overlay_set ($x, $y\fR, \f(CW$text)" 4
362 .el .IP "$term\->scr_overlay_set ($x, \f(CW$y\fR, \f(CW$text\fR)" 4
363 .IX Item "$term->scr_overlay_set ($x, $y, $text)"
364 Write a string at the given position into the overlay.
365 .ie n .IP "$cellwidth = $term\fR\->strwidth \f(CW$string" 4
366 .el .IP "$cellwidth = \f(CW$term\fR\->strwidth \f(CW$string\fR" 4
367 .IX Item "$cellwidth = $term->strwidth $string"
368 Returns the number of screen-cells this string would need. Correctly
369 accounts for wide and combining characters.
370 .ie n .IP "$octets = $term\fR\->locale_encode \f(CW$string" 4
371 .el .IP "$octets = \f(CW$term\fR\->locale_encode \f(CW$string\fR" 4
372 .IX Item "$octets = $term->locale_encode $string"
373 Convert the given text string into the corresponding locale encoding.
374 .ie n .IP "$string = $term\fR\->locale_decode \f(CW$octets" 4
375 .el .IP "$string = \f(CW$term\fR\->locale_decode \f(CW$octets\fR" 4
376 .IX Item "$string = $term->locale_decode $octets"
377 Convert the given locale-encoded octets into a perl string.
378 .IP "$term\->tt_write ($octets)" 4
379 .IX Item "$term->tt_write ($octets)"
380 Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To
381 pass characters instead of octets, you should convetr you strings first to
382 the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR.
383 .ie n .Sh "The ""urxvt::timer"" Class"
384 .el .Sh "The \f(CWurxvt::timer\fP Class"
385 .IX Subsection "The urxvt::timer Class"
386 This class implements timer watchers/events. Time is represented as a
387 fractional number of seconds since the epoch. Example:
388 .PP
389 .Vb 11
390 \& # create a digital clock display in upper right corner
391 \& $term->{timer} = urxvt::timer
392 \& ->new
393 \& ->start (urxvt::NOW)
394 \& ->cb (sub {
395 \& my ($timer) = @_;
396 \& my $time = $timer->at;
397 \& $timer->start ($time + 1);
398 \& $self->scr_overlay (-1, 0,
399 \& POSIX::strftime "%H:%M:%S", localtime $time);
400 \& });
401 .Ve
402 .IP "$timer = new urxvt::timer" 4
403 .IX Item "$timer = new urxvt::timer"
404 Create a new timer object in stopped state.
405 .ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4
406 .el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4
407 .IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })"
408 Set the callback to be called when the timer triggers.
409 .ie n .IP "$tstamp = $timer\->at" 4
410 .el .IP "$tstamp = \f(CW$timer\fR\->at" 4
411 .IX Item "$tstamp = $timer->at"
412 Return the time this watcher will fire next.
413 .ie n .IP "$timer = $timer\->set ($tstamp)" 4
414 .el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4
415 .IX Item "$timer = $timer->set ($tstamp)"
416 Set the time the event is generated to \f(CW$tstamp\fR.
417 .ie n .IP "$timer = $timer\->start" 4
418 .el .IP "$timer = \f(CW$timer\fR\->start" 4
419 .IX Item "$timer = $timer->start"
420 Start the timer.
421 .ie n .IP "$timer = $timer\->start ($tstamp)" 4
422 .el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4
423 .IX Item "$timer = $timer->start ($tstamp)"
424 Set the event trigger time to \f(CW$tstamp\fR and start the timer.
425 .ie n .IP "$timer = $timer\->stop" 4
426 .el .IP "$timer = \f(CW$timer\fR\->stop" 4
427 .IX Item "$timer = $timer->stop"
428 Stop the timer.
429 .ie n .Sh "The ""urxvt::iow"" Class"
430 .el .Sh "The \f(CWurxvt::iow\fP Class"
431 .IX Subsection "The urxvt::iow Class"
432 This class implements io watchers/events. Example:
433 .PP
434 .Vb 12
435 \& $term->{socket} = ...
436 \& $term->{iow} = urxvt::iow
437 \& ->new
438 \& ->fd (fileno $term->{socket})
439 \& ->events (1) # wait for read data
440 \& ->start
441 \& ->cb (sub {
442 \& my ($iow, $revents) = @_;
443 \& # $revents must be 1 here, no need to check
444 \& sysread $term->{socket}, my $buf, 8192
445 \& or end-of-file;
446 \& });
447 .Ve
448 .IP "$iow = new urxvt::iow" 4
449 .IX Item "$iow = new urxvt::iow"
450 Create a new io watcher object in stopped state.
451 .ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4
452 .el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4
453 .IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })"
454 Set the callback to be called when io events are triggered. \f(CW$reventmask\fR
455 is a bitset as described in the \f(CW\*(C`events\*(C'\fR method.
456 .ie n .IP "$iow = $iow\->fd ($fd)" 4
457 .el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4
458 .IX Item "$iow = $iow->fd ($fd)"
459 Set the filedescriptor (not handle) to watch.
460 .ie n .IP "$iow = $iow\->events ($eventmask)" 4
461 .el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4
462 .IX Item "$iow = $iow->events ($eventmask)"
463 Set the event mask to watch. Bit #0 (value \f(CW1\fR) enables watching for read
464 data, Bit #1 (value \f(CW2\fR) enables watching for write data.
465 .ie n .IP "$iow = $iow\->start" 4
466 .el .IP "$iow = \f(CW$iow\fR\->start" 4
467 .IX Item "$iow = $iow->start"
468 Start watching for requested events on the given handle.
469 .ie n .IP "$iow = $iow\->stop" 4
470 .el .IP "$iow = \f(CW$iow\fR\->stop" 4
471 .IX Item "$iow = $iow->stop"
472 Stop watching for events on the given filehandle.
473 .SH "ENVIRONMENT"
474 .IX Header "ENVIRONMENT"
475 .Sh "\s-1URXVT_PERL_VERBOSITY\s0"
476 .IX Subsection "URXVT_PERL_VERBOSITY"
477 This variable controls the verbosity level of the perl extension. Higher
478 numbers indicate more verbose output.
479 .IP "0 \- only fatal messages" 4
480 .IX Item "0 - only fatal messages"
481 .PD 0
482 .IP "3 \- script loading and management" 4
483 .IX Item "3 - script loading and management"
484 .IP "10 \- all events received" 4
485 .IX Item "10 - all events received"
486 .PD
487 .SH "AUTHOR"
488 .IX Header "AUTHOR"
489 .Vb 2
490 \& Marc Lehmann <pcg@goof.com>
491 \& http://software.schmorp.de/pkg/rxvt-unicode
492 .Ve