ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/doc/rxvtperl.3.txt
(Generate patch)

Comparing rxvt-unicode/doc/rxvtperl.3.txt (file contents):
Revision 1.9 by root, Wed Jan 4 00:12:12 2006 UTC vs.
Revision 1.37 by root, Wed Jan 25 21:48:47 2006 UTC

12 # start a rxvt using it: 12 # start a rxvt using it:
13 13
14 rxvt --perl-lib $HOME -pe grab_test 14 rxvt --perl-lib $HOME -pe grab_test
15 15
16DESCRIPTION 16DESCRIPTION
17 Everytime a terminal object gets created, scripts specified via the 17 Everytime a terminal object gets created, extension scripts specified
18 "perl" resource are loaded and associated with it. 18 via the "perl" resource are loaded and associated with it.
19 19
20 Scripts are compiled in a 'use strict' and 'use utf8' environment, and 20 Scripts are compiled in a 'use strict' and 'use utf8' environment, and
21 thus must be encoded as UTF-8. 21 thus must be encoded as UTF-8.
22 22
23 Each script will only ever be loaded once, even in rxvtd, where scripts 23 Each script will only ever be loaded once, even in rxvtd, where scripts
24 will be shared (but not enabled) for all terminals. 24 will be shared (but not enabled) for all terminals.
25 25
26 Prepackaged Extensions 26PREPACKAGED EXTENSIONS
27 This section describes the extensiosn delivered with this version. You 27 This section describes the extensions delivered with this release. You
28 can find them in /opt/rxvt/lib/urxvt/perl/. 28 can find them in /opt/rxvt/lib/urxvt/perl/.
29 29
30 You can activate them like this: 30 You can activate them like this:
31 31
32 rxvt -pe <extensionname> 32 rxvt -pe <extensionname>
33 33
34 selection 34 Or by adding them to the resource for extensions loaded by default:
35 Intelligent selection. This extension tries to be more intelligent 35
36 URxvt.perl-ext-common: default,automove-background,selection-autotransform
37
38 selection (enabled by default)
39 (More) intelligent selection. This extension tries to be more
36 when the user extends selections (double-click). Right now, it tries 40 intelligent when the user extends selections (double-click and
37 to select urls and complete shell-quoted arguments, which is very 41 further clicks). Right now, it tries to select words, urls and
42 complete shell-quoted arguments, which is very convenient, too, if
38 convenient, too, if your ls supports "--quoting-style=shell". 43 your ls supports "--quoting-style=shell".
39 44
40 It also offers the following bindable event: 45 A double-click usually selects the word under the cursor, further
46 clicks will enlarge the selection.
47
48 The selection works by trying to match a number of regexes and
49 displaying them in increasing order of length. You can add your own
50 regexes by specifying resources of the form:
51
52 URxvt.selection.pattern-0: perl-regex
53 URxvt.selection.pattern-1: perl-regex
54 ...
55
56 The index number (0, 1...) must not have any holes, and each regex
57 must contain at least one pair of capturing parentheses, which will
58 be used for the match. For example, the followign adds a regex that
59 matches everything between two vertical bars:
60
61 URxvt.selection.pattern-0: \\|([^|]+)\\|
62
63 Another example: Programs I use often output "absolute path: " at
64 the beginning of a line when they process multiple files. The
65 following pattern matches the filename (note, there is a single
66 space at the very end):
67
68 URxvt.selection.pattern-0: ^(/[^:]+):\
69
70 You can look at the source of the selection extension to see more
71 interesting uses, such as parsing a line from beginning to end.
72
73 This extension also offers following bindable keyboard commands:
41 74
42 rot13 75 rot13
43 Rot-13 the selection when activated. Used via keyboard trigger: 76 Rot-13 the selection when activated. Used via keyboard trigger:
44 77
45 URxvt.keysym.C-M-r: perl:selection:rot13 78 URxvt.keysym.C-M-r: perl:selection:rot13
46 79
80 option-popup (enabled by default)
81 Binds a popup menu to Ctrl-Button2 that lets you toggle (some)
82 options at runtime.
83
84 selection-popup (enabled by default)
85 Binds a popup menu to Ctrl-Button3 that lets you convert the
86 selection text into various other formats/action (such as uri
87 unescaping, perl evaluation, web-browser starting etc.), depending
88 on content.
89
90 Other extensions can extend this popup menu by pushing a code
91 reference onto "@{ $term-"{selection_popup_hook} }>, that is called
92 whenever the popup is displayed.
93
94 It's sole argument is the popup menu, which can be modified. The
95 selection is in $_, which can be used to decide wether to add
96 something or not. It should either return nothing or a string and a
97 code reference. The string will be used as button text and the code
98 reference will be called when the button gets activated and should
99 transform $_.
100
101 The following will add an entry "a to b" that transforms all "a"s in
102 the selection to "b"s, but only if the selection currently contains
103 any "a"s:
104
105 push @{ $self->{term}{selection_popup_hook} }, sub {
106 /a/ ? ("a to be" => sub { s/a/b/g }
107 : ()
108 };
109
110 searchable-scrollback<hotkey> (enabled by default)
111 Adds regex search functionality to the scrollback buffer, triggered
112 by a hotkey (default: "M-s"). While in search mode, normal terminal
113 input/output is suspended and a regex is displayed at the bottom of
114 the screen.
115
116 Inputting characters appends them to the regex and continues
117 incremental search. "BackSpace" removes a character from the regex,
118 "Up" and "Down" search upwards/downwards in the scrollback buffer,
119 "End" jumps to the bottom. "Escape" leaves search mode and returns
120 to the point where search was started, while "Enter" or "Return"
121 stay at the current position and additionally stores the first match
122 in the current line into the primary selection.
123
124 readline (enabled by default)
125 A support package that tries to make editing with readline easier.
126 At the moment, it reacts to clicking with the left mouse button by
127 trying to move the text cursor to this position. It does so by
128 generating as many cursor-left or cursor-right keypresses as
129 required (the this only works for programs that correctly support
130 wide characters).
131
132 To avoid too many false positives, this is only done when:
133
134 - the tty is in ICANON state.
135 - the text cursor is visible.
136 - the primary screen is currently being displayed.
137 - the mouse is on the same (multi-row-) line as the text cursor.
138
139 The normal selection mechanism isn't disabled, so quick successive
140 clicks might interfere with selection creation in harmless ways.
141
142 selection-autotransform
143 This selection allows you to do automatic transforms on a selection
144 whenever a selection is made.
145
146 It works by specifying perl snippets (most useful is a single "s///"
147 operator) that modify $_ as resources:
148
149 URxvt.selection-autotransform.0: transform
150 URxvt.selection-autotransform.1: transform
151 ...
152
153 For example, the following will transform selections of the form
154 "filename:number", often seen in compiler messages, into "vi
155 +$filename $word":
156
157 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
158
159 And this example matches the same,but replaces it with vi-commands
160 you can paste directly into your (vi :) editor:
161
162 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
163
164 Of course, this can be modified to suit your needs and your editor
165 :)
166
167 To expand the example above to typical perl error messages ("XXX at
168 FILENAME line YYY."), you need a slightly more elaborate solution:
169
170 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
171 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
172
173 The first line tells the selection code to treat the unchanging part
174 of every error message as a selection pattern, and the second line
175 transforms the message into vi commands to load the file.
176
177 tabbed
178 This transforms the terminal into a tabbar with additional
179 terminals, that is, it implements what is commonly refered to as
180 "tabbed terminal". The topmost line displays a "[NEW]" button,
181 which, when clicked, will add a new tab, followed by one button per
182 tab.
183
184 Clicking a button will activate that tab. Pressing Shift-Left and
185 Shift-Right will switch to the tab left or right of the current one,
186 while Shift-Down creates a new tab.
187
188 mark-urls
189 Uses per-line display filtering ("on_line_update") to underline urls
190 and make them clickable. When middle-clicked, the program specified
191 in the resource "urlLauncher" (default "x-www-browser") will be
192 started with the URL as first argument.
193
194 xim-onthespot
195 This (experimental) perl extension implements OnTheSpot editing. It
196 does not work perfectly, and some input methods don't seem to work
197 well with OnTheSpot editing in general, but it seems to work at
198 leats for SCIM and kinput2.
199
200 You enable it by specifying this extension and a preedit style of
201 "OnTheSpot", i.e.:
202
203 rxvt -pt OnTheSpot -pe xim-onthespot
204
205 automove-background
206 This is basically a one-line extension that dynamically changes the
207 background pixmap offset to the window position, in effect creating
208 the same effect as pseudo transparency with a custom pixmap. No
209 scaling is supported in this mode. Exmaple:
210
211 rxvt -pixmap background.xpm -pe automove-background
212
213 block-graphics-to-ascii
214 A not very useful example of filtering all text output to the
215 terminal, by replacing all line-drawing characters (U+2500 ..
216 U+259F) by a similar-looking ascii character.
217
47 digital-clock 218 digital-clock
48 Displays a digital clock using the built-in overlay. 219 Displays a digital clock using the built-in overlay.
220
221 remote-clipboard
222 Somewhat of a misnomer, this extension adds two menu entries to the
223 selection popup that allows one ti run external commands to store
224 the selection somewhere and fetch it again.
225
226 We use it to implement a "distributed selection mechanism", which
227 just means that one command uploads the file to a remote server, and
228 another reads it.
229
230 The commands can be set using the "URxvt.remote-selection.store" and
231 "URxvt.remote-selection.fetch" resources. The first should read the
232 selection to store from STDIN (always in UTF-8), the second should
233 provide the selection data on STDOUT (also in UTF-8).
234
235 The defaults (which are likely useless to you) use rsh and cat:
236
237 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
238 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
239
240 selection-pastebin
241 This is a little rarely useful extension that Uploads the selection
242 as textfile to a remote site (or does other things). (The
243 implementation is not currently secure for use in a multiuser
244 environment as it writes to /tmp directly.).
245
246 It listens to the "selection-pastebin:remote-pastebin" keyboard
247 command, i.e.
248
249 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
250
251 Pressing this combination runs a command with "%" replaced by the
252 name of the textfile. This command can be set via a resource:
253
254 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
255
256 And the default is likely not useful to anybody but the few people
257 around here :)
258
259 The name of the textfile is the hex encoded md5 sum of the
260 selection, so the same content should lead to the same filename.
261
262 After a successful upload the selection will be replaced by the text
263 given in the "selection-pastebin-url" resource (again, the % is the
264 placeholder for the filename):
265
266 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
49 267
50 example-refresh-hooks 268 example-refresh-hooks
51 Displays a very simple digital clock in the upper right corner of 269 Displays a very simple digital clock in the upper right corner of
52 the window. Illustrates overwriting the refresh callbacks to create 270 the window. Illustrates overwriting the refresh callbacks to create
53 your own overlays or changes. 271 your own overlays or changes.
54 272
273API DOCUMENTATION
55 General API Considerations 274 General API Considerations
56 All objects (such as terminals, time watchers etc.) are typical 275 All objects (such as terminals, time watchers etc.) are typical
57 reference-to-hash objects. The hash can be used to store anything you 276 reference-to-hash objects. The hash can be used to store anything you
58 like. All members starting with an underscore (such as "_ptr" or 277 like. All members starting with an underscore (such as "_ptr" or
59 "_hook") are reserved for internal uses and MUST NOT be accessed or 278 "_hook") are reserved for internal uses and MUST NOT be accessed or
62 When objects are destroyed on the C++ side, the perl object hashes are 281 When objects are destroyed on the C++ side, the perl object hashes are
63 emptied, so its best to store related objects such as time watchers and 282 emptied, so its best to store related objects such as time watchers and
64 the like inside the terminal object so they get destroyed as soon as the 283 the like inside the terminal object so they get destroyed as soon as the
65 terminal is destroyed. 284 terminal is destroyed.
66 285
286 Argument names also often indicate the type of a parameter. Here are
287 some hints on what they mean:
288
289 $text
290 Rxvt-unicodes special way of encoding text, where one "unicode"
291 character always represents one screen cell. See ROW_t for a
292 discussion of this format.
293
294 $string
295 A perl text string, with an emphasis on *text*. It can store all
296 unicode characters and is to be distinguished with text encoded in a
297 specific encoding (often locale-specific) and binary data.
298
299 $octets
300 Either binary data or - more common - a text string encoded in a
301 locale-specific way.
302
303 Extension Objects
304 Very perl extension is a perl class. A separate perl object is created
305 for each terminal and each extension and passed as the first parameter
306 to hooks. So extensions can use their $self object without having to
307 think about other extensions, with the exception of methods and members
308 that begin with an underscore character "_": these are reserved for
309 internal use.
310
311 Although it isn't a "urxvt::term" object, you can call all methods of
312 the "urxvt::term" class on this object.
313
314 It has the following methods and data members:
315
316 $urxvt_term = $self->{term}
317 Returns the "urxvt::term" object associated with this instance of
318 the extension. This member *must not* be changed in any way.
319
320 $self->enable ($hook_name => $cb, [$hook_name => $cb..])
321 Dynamically enable the given hooks (named without the "on_" prefix)
322 for this extension, replacing any previous hook. This is useful when
323 you want to overwrite time-critical hooks only temporarily.
324
325 $self->disable ($hook_name[, $hook_name..])
326 Dynamically disable the given hooks.
327
67 Hooks 328 Hooks
68 The following subroutines can be declared in loaded scripts, and will be 329 The following subroutines can be declared in extension files, and will
69 called whenever the relevant event happens. 330 be called whenever the relevant event happens.
70 331
71 The first argument passed to them is an object private to each terminal 332 The first argument passed to them is an extension oject as described in
72 and extension package. You can call all "urxvt::term" methods on it, but 333 the in the "Extension Objects" section.
73 its not a real "urxvt::term" object. Instead, the real "urxvt::term"
74 object that is shared between all packages is stored in the "term"
75 member.
76 334
77 All of them must return a boolean value. If it is true, then the event 335 All of these hooks must return a boolean value. If any of the called
78 counts as being *consumed*, and the invocation of other hooks is 336 hooks returns true, then the event counts as being *consumed*, and the
79 skipped, and the relevant action might not be carried out by the C++ 337 relevant action might not be carried out by the C++ code.
80 code.
81 338
82 When in doubt, return a false value (preferably "()"). 339 *When in doubt, return a false value (preferably "()").*
83 340
84 on_init $term 341 on_init $term
85 Called after a new terminal object has been initialized, but before 342 Called after a new terminal object has been initialized, but before
86 windows are created or the command gets run. 343 windows are created or the command gets run. Most methods are unsafe
344 to call or deliver senseless data, as terminal size and other
345 characteristics have not yet been determined. You can safely query
346 and change resources and options, though. For many purposes the
347 "on_start" hook is a better place.
348
349 on_start $term
350 Called at the very end of initialisation of a new terminal, just
351 before trying to map (display) the toplevel and returning to the
352 mainloop.
353
354 on_destroy $term
355 Called whenever something tries to destroy terminal, when the
356 terminal is still fully functional (not for long, though).
87 357
88 on_reset $term 358 on_reset $term
89 Called after the screen is "reset" for any reason, such as resizing 359 Called after the screen is "reset" for any reason, such as resizing
90 or control sequences. Here is where you can react on changes to 360 or control sequences. Here is where you can react on changes to
91 size-related variables. 361 size-related variables.
92 362
93 on_start $term 363 on_child_start $term, $pid
94 Called at the very end of initialisation of a new terminal, just 364 Called just after the child process has been "fork"ed.
95 before returning to the mainloop. 365
366 on_child_exit $term, $status
367 Called just after the child process has exited. $status is the
368 status from "waitpid".
96 369
97 on_sel_make $term, $eventtime 370 on_sel_make $term, $eventtime
98 Called whenever a selection has been made by the user, but before 371 Called whenever a selection has been made by the user, but before
99 the selection text is copied, so changes to the beginning, end or 372 the selection text is copied, so changes to the beginning, end or
100 type of the selection will be honored. 373 type of the selection will be honored.
113 386
114 on_sel_extend $term 387 on_sel_extend $term
115 Called whenever the user tries to extend the selection (e.g. with a 388 Called whenever the user tries to extend the selection (e.g. with a
116 double click) and is either supposed to return false (normal 389 double click) and is either supposed to return false (normal
117 operation), or should extend the selection itelf and return true to 390 operation), or should extend the selection itelf and return true to
118 suppress the built-in processing. 391 suppress the built-in processing. This can happen multiple times, as
392 long as the callback returns true, it will be called on every
393 further click by the user and is supposed to enlarge the selection
394 more and more, if possible.
119 395
120 See the selection example extension. 396 See the selection example extension.
121
122 on_focus_in $term
123 Called whenever the window gets the keyboard focus, before urxvt
124 does focus in processing.
125
126 on_focus_out $term
127 Called wheneever the window loses keyboard focus, before urxvt does
128 focus out processing.
129 397
130 on_view_change $term, $offset 398 on_view_change $term, $offset
131 Called whenever the view offset changes, i..e the user or program 399 Called whenever the view offset changes, i..e the user or program
132 scrolls. Offset 0 means display the normal terminal, positive values 400 scrolls. Offset 0 means display the normal terminal, positive values
133 show this many lines of scrollback. 401 show this many lines of scrollback.
138 may be larger than the scroll back buffer or the terminal. 406 may be larger than the scroll back buffer or the terminal.
139 407
140 It is called before lines are scrolled out (so rows 0 .. min ($lines 408 It is called before lines are scrolled out (so rows 0 .. min ($lines
141 - 1, $nrow - 1) represent the lines to be scrolled out). $saved is 409 - 1, $nrow - 1) represent the lines to be scrolled out). $saved is
142 the total number of lines that will be in the scrollback buffer. 410 the total number of lines that will be in the scrollback buffer.
143
144 on_tty_activity $term *NYI*
145 Called whenever the program(s) running in the urxvt window send
146 output.
147 411
148 on_osc_seq $term, $string 412 on_osc_seq $term, $string
149 Called whenever the ESC ] 777 ; string ST command sequence (OSC = 413 Called whenever the ESC ] 777 ; string ST command sequence (OSC =
150 operating system command) is processed. Cursor position and other 414 operating system command) is processed. Cursor position and other
151 state information is up-to-date when this happens. For 415 state information is up-to-date when this happens. For
155 419
156 Be careful not ever to trust (in a security sense) the data you 420 Be careful not ever to trust (in a security sense) the data you
157 receive, as its source can not easily be controleld (e-mail content, 421 receive, as its source can not easily be controleld (e-mail content,
158 messages from other users on the same system etc.). 422 messages from other users on the same system etc.).
159 423
424 on_add_lines $term, $string
425 Called whenever text is about to be output, with the text as
426 argument. You can filter/change and output the text yourself by
427 returning a true value and calling "$term->scr_add_lines" yourself.
428 Please note that this might be very slow, however, as your hook is
429 called for all text being output.
430
431 on_tt_write $term, $octets
432 Called whenever some data is written to the tty/pty and can be used
433 to suppress or filter tty input.
434
435 on_line_update $term, $row
436 Called whenever a line was updated or changed. Can be used to filter
437 screen output (e.g. underline urls or other useless stuff). Only
438 lines that are being shown will be filtered, and, due to performance
439 reasons, not always immediately.
440
441 The row number is always the topmost row of the line if the line
442 spans multiple rows.
443
444 Please note that, if you change the line, then the hook might get
445 called later with the already-modified line (e.g. if unrelated parts
446 change), so you cannot just toggle rendition bits, but only set
447 them.
448
160 on_refresh_begin $term 449 on_refresh_begin $term
161 Called just before the screen gets redrawn. Can be used for overlay 450 Called just before the screen gets redrawn. Can be used for overlay
162 or similar effects by modify terminal contents in refresh_begin, and 451 or similar effects by modify terminal contents in refresh_begin, and
163 restoring them in refresh_end. The built-in overlay and selection 452 restoring them in refresh_end. The built-in overlay and selection
164 display code is run after this hook, and takes precedence. 453 display code is run after this hook, and takes precedence.
165 454
166 on_refresh_end $term 455 on_refresh_end $term
167 Called just after the screen gets redrawn. See "on_refresh_begin". 456 Called just after the screen gets redrawn. See "on_refresh_begin".
168 457
169 on_keyboard_command $term, $string 458 on_user_command $term, $string
170 Called whenever the user presses a key combination that has a 459 Called whenever the a user-configured event is being activated (e.g.
171 "perl:string" action bound to it (see description of the keysym 460 via a "perl:string" action bound to a key, see description of the
172 resource in the rxvt(1) manpage). 461 keysym resource in the rxvt(1) manpage).
462
463 The event is simply the action string. This interface is assumed to
464 change slightly in the future.
465
466 on_x_event $term, $event
467 Called on every X event received on the vt window (and possibly
468 other windows). Should only be used as a last resort. Most event
469 structure members are not passed.
470
471 on_focus_in $term
472 Called whenever the window gets the keyboard focus, before
473 rxvt-unicode does focus in processing.
474
475 on_focus_out $term
476 Called wheneever the window loses keyboard focus, before
477 rxvt-unicode does focus out processing.
478
479 on_configure_notify $term, $event
480 on_property_notify $term, $event
481 on_key_press $term, $event, $keysym, $octets
482 on_key_release $term, $event, $keysym
483 on_button_press $term, $event
484 on_button_release $term, $event
485 on_motion_notify $term, $event
486 on_map_notify $term, $event
487 on_unmap_notify $term, $event
488 Called whenever the corresponding X event is received for the
489 terminal If the hook returns true, then the even will be ignored by
490 rxvt-unicode.
491
492 The event is a hash with most values as named by Xlib (see the
493 XEvent manpage), with the additional members "row" and "col", which
494 are the (real, not screen-based) row and column under the mouse
495 cursor.
496
497 "on_key_press" additionally receives the string rxvt-unicode would
498 output, if any, in locale-specific encoding.
499
500 subwindow.
501
502 on_client_message $term, $event
503 on_wm_protocols $term, $event
504 on_wm_delete_window $term, $event
505 Called when various types of ClientMessage events are received (all
506 with format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
173 507
174 Variables in the "urxvt" Package 508 Variables in the "urxvt" Package
509 $urxvt::LIBDIR
510 The rxvt-unicode library directory, where, among other things, the
511 perl modules and scripts are stored.
512
513 $urxvt::RESCLASS, $urxvt::RESCLASS
514 The resource class and name rxvt-unicode uses to look up X
515 resources.
516
517 $urxvt::RXVTNAME
518 The basename of the installed binaries, usually "urxvt".
519
175 $urxvt::TERM 520 $urxvt::TERM
176 The current terminal. Whenever a callback/Hook is bein executed,
177 this variable stores the current "urxvt::term" object. 521 The current terminal. This variable stores the current "urxvt::term"
522 object, whenever a callback/hook is executing.
523
524 @urxvt::TERM_INIT
525 All coderefs in this array will be called as methods of the next
526 newly created "urxvt::term" object (during the "on_init" phase). The
527 array gets cleared before the codereferences that were in it are
528 being executed, so coderefs can push themselves onto it again if
529 they so desire.
530
531 This complements to the perl-eval commandline option, but gets
532 executed first.
533
534 @urxvt::TERM_EXT
535 Works similar to @TERM_INIT, but contains perl package/class names,
536 which get registered as normal extensions after calling the hooks in
537 @TERM_INIT but before other extensions. Gets cleared just like
538 @TERM_INIT.
178 539
179 Functions in the "urxvt" Package 540 Functions in the "urxvt" Package
180 urxvt::fatal $errormessage 541 urxvt::fatal $errormessage
181 Fatally aborts execution with the given error message. Avoid at all 542 Fatally aborts execution with the given error message. Avoid at all
182 costs! The only time this is acceptable is when the terminal process 543 costs! The only time this is acceptable is when the terminal process
188 function that calls this function. 549 function that calls this function.
189 550
190 Using this function has the advantage that its output ends up in the 551 Using this function has the advantage that its output ends up in the
191 correct place, e.g. on stderr of the connecting urxvtc client. 552 correct place, e.g. on stderr of the connecting urxvtc client.
192 553
554 Messages have a size limit of 1023 bytes currently.
555
193 $time = urxvt::NOW 556 $time = urxvt::NOW
194 Returns the "current time" (as per the event loop). 557 Returns the "current time" (as per the event loop).
558
559 urxvt::CurrentTime
560 urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask,
561 Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask,
562 Button5Mask, AnyModifier
563 urxvt::NoEventMask, KeyPressMask, KeyReleaseMask, ButtonPressMask,
564 ButtonReleaseMask, EnterWindowMask, LeaveWindowMask, PointerMotionMask,
565 PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
566 Button3MotionMask, Button4MotionMask, Button5MotionMask,
567 ButtonMotionMask, KeymapStateMask, ExposureMask, VisibilityChangeMask,
568 StructureNotifyMask, ResizeRedirectMask, SubstructureNotifyMask,
569 SubstructureRedirectMask, FocusChangeMask, PropertyChangeMask,
570 ColormapChangeMask, OwnerGrabButtonMask
571 urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
572 EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
573 GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
574 UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
575 ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
576 CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
577 SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
578 Various constants for use in X calls and event processing.
195 579
196 RENDITION 580 RENDITION
197 Rendition bitsets contain information about colour, font, font styles 581 Rendition bitsets contain information about colour, font, font styles
198 and similar information for each screen cell. 582 and similar information for each screen cell.
199 583
217 601
218 $foreground = urxvt::GET_BASEFG $rend 602 $foreground = urxvt::GET_BASEFG $rend
219 $background = urxvt::GET_BASEBG $rend 603 $background = urxvt::GET_BASEBG $rend
220 Return the foreground/background colour index, respectively. 604 Return the foreground/background colour index, respectively.
221 605
222 $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 606 $rend = urxvt::SET_FGCOLOR $rend, $new_colour
223 $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 607 $rend = urxvt::SET_BGCOLOR $rend, $new_colour
224 Replace the foreground/background colour in the rendition mask with 608 Replace the foreground/background colour in the rendition mask with
225 the specified one. 609 the specified one.
226 610
227 $value = urxvt::GET_CUSTOM ($rend) 611 $value = urxvt::GET_CUSTOM $rend
228 Return the "custom" value: Every rendition has 5 bits for use by 612 Return the "custom" value: Every rendition has 5 bits for use by
229 extensions. They can be set and changed as you like and are 613 extensions. They can be set and changed as you like and are
230 initially zero. 614 initially zero.
231 615
232 $rend = urxvt::SET_CUSTOM ($rend, $new_value) 616 $rend = urxvt::SET_CUSTOM $rend, $new_value
233 Change the custom value. 617 Change the custom value.
234 618
619 The "urxvt::anyevent" Class
620 The sole purpose of this class is to deliver an interface to the
621 "AnyEvent" module - any module using it will work inside urxvt without
622 further programming. The only exception is that you cannot wait on
623 condition variables, but non-blocking condvar use is ok. What this means
624 is that you cannot use blocking APIs, but the non-blocking variant
625 should work.
626
235 The "urxvt::term" Class 627 The "urxvt::term" Class
628 $term = new urxvt::term $envhashref, $rxvtname, [arg...]
629 Creates a new terminal, very similar as if you had started it with
630 system "$rxvtname, arg...". $envhashref must be a reference to a
631 %ENV-like hash which defines the environment of the new terminal.
632
633 Croaks (and probably outputs an error message) if the new instance
634 couldn't be created. Returns "undef" if the new instance didn't
635 initialise perl, and the terminal object otherwise. The "init" and
636 "start" hooks will be called during this call.
637
638 $term->destroy
639 Destroy the terminal object (close the window, free resources etc.).
640 Please note that rxvt will not exit as long as any event watchers
641 (timers, io watchers) are still active.
642
643 $term->exec_async ($cmd[, @args])
644 Works like the combination of the "fork"/"exec" builtins, which
645 executes ("starts") programs in the background. This function takes
646 care of setting the user environment before exec'ing the command
647 (e.g. "PATH") and should be preferred over explicit calls to "exec"
648 or "system".
649
650 Returns the pid of the subprocess or "undef" on error.
651
652 $isset = $term->option ($optval[, $set])
653 Returns true if the option specified by $optval is enabled, and
654 optionally change it. All option values are stored by name in the
655 hash %urxvt::OPTION. Options not enabled in this binary are not in
656 the hash.
657
658 Here is a a likely non-exhaustive list of option names, please see
659 the source file /src/optinc.h to see the actual list:
660
661 borderLess console cursorBlink cursorUnderline hold iconic insecure
662 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
663 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
664 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
665 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
666 transparent tripleclickwords utmpInhibit visualBell
667
236 $value = $term->resource ($name[, $newval]) 668 $value = $term->resource ($name[, $newval])
237 Returns the current resource value associated with a given name and 669 Returns the current resource value associated with a given name and
238 optionally sets a new value. Setting values is most useful in the 670 optionally sets a new value. Setting values is most useful in the
239 "init" hook. Unset resources are returned and accepted as "undef". 671 "init" hook. Unset resources are returned and accepted as "undef".
240 672
249 Please note that resource strings will currently only be freed when 681 Please note that resource strings will currently only be freed when
250 the terminal is destroyed, so changing options frequently will eat 682 the terminal is destroyed, so changing options frequently will eat
251 memory. 683 memory.
252 684
253 Here is a a likely non-exhaustive list of resource names, not all of 685 Here is a a likely non-exhaustive list of resource names, not all of
254 which are supported in every build, please see the source to see the 686 which are supported in every build, please see the source file
255 actual list: 687 /src/rsinc.h to see the actual list:
256 688
257 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 689 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
258 borderLess color cursorBlink cursorUnderline cutchars delete_key 690 borderLess color cursorBlink cursorUnderline cutchars delete_key
259 display_name embed ext_bwidth fade font geometry hold iconName 691 display_name embed ext_bwidth fade font geometry hold iconName
260 imFont imLocale inputMethod insecure int_bwidth intensityStyles 692 imFont imLocale inputMethod insecure int_bwidth intensityStyles
261 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 693 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
262 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 694 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
263 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 695 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
264 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 696 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
265 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 697 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
266 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 698 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
699 secondaryScreen secondaryScroll selectstyle shade term_name title
267 shade term_name title transparent transparent_all tripleclickwords 700 transient_for transparent transparent_all tripleclickwords utmpInhibit
268 utmpInhibit visualBell 701 visualBell
702
703 $value = $term->x_resource ($pattern)
704 Returns the X-Resource for the given pattern, excluding the program
705 or class name, i.e. "$term->x_resource ("boldFont")" should return
706 the same value as used by this instance of rxvt-unicode. Returns
707 "undef" if no resource with that pattern exists.
708
709 This method should only be called during the "on_start" hook, as
710 there is only one resource database per display, and later
711 invocations might return the wrong resources.
712
713 $success = $term->parse_keysym ($keysym_spec, $command_string)
714 Adds a keymap translation exactly as specified via a resource. See
715 the "keysym" resource in the rxvt(1) manpage.
716
717 $rend = $term->rstyle ([$new_rstyle])
718 Return and optionally change the current rendition. Text that is
719 output by the terminal application will use this style.
720
721 ($row, $col) = $term->screen_cur ([$row, $col])
722 Return the current coordinates of the text cursor position and
723 optionally set it (which is usually bad as applications don't expect
724 that).
269 725
270 ($row, $col) = $term->selection_mark ([$row, $col]) 726 ($row, $col) = $term->selection_mark ([$row, $col])
271 ($row, $col) = $term->selection_beg ([$row, $col]) 727 ($row, $col) = $term->selection_beg ([$row, $col])
272 ($row, $col) = $term->selection_end ([$row, $col]) 728 ($row, $col) = $term->selection_end ([$row, $col])
273 Return the current values of the selection mark, begin or end 729 Return the current values of the selection mark, begin or end
274 positions, and optionally set them to new values. 730 positions, and optionally set them to new values.
275 731
732 $term->selection_make ($eventtime[, $rectangular])
733 Tries to make a selection as set by "selection_beg" and
734 "selection_end". If $rectangular is true (default: false), a
735 rectangular selection will be made. This is the prefered function to
736 make a selection.
737
276 $success = $term->selection_grab ($eventtime) 738 $success = $term->selection_grab ($eventtime)
277 Try to request the primary selection from the server (for example, 739 Try to request the primary selection text from the server (for
278 as set by the next method). 740 example, as set by the next method). No visual feedback will be
741 given. This function is mostly useful from within "on_sel_grab"
742 hooks.
279 743
280 $oldtext = $term->selection ([$newtext]) 744 $oldtext = $term->selection ([$newtext])
281 Return the current selection text and optionally replace it by 745 Return the current selection text and optionally replace it by
282 $newtext. 746 $newtext.
283 747
284 #=item $term->overlay ($x, $y, $text) # #Create a simple multi-line 748 $term->overlay_simple ($x, $y, $text)
285 overlay box. See the next method for details. # #=cut 749 Create a simple multi-line overlay box. See the next method for
286 750 details.
287 sub urxvt::term::scr_overlay { die; my ($self, $x, $y, $text) = @_;
288
289 my @lines = split /\n/, $text;
290
291 my $w = 0;
292 for (map $self->strwidth ($_), @lines) {
293 $w = $_ if $w < $_;
294 }
295
296 $self->scr_overlay_new ($x, $y, $w, scalar @lines);
297 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
298 }
299 751
300 $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 752 $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
301 Create a new (empty) overlay at the given position with the given 753 Create a new (empty) overlay at the given position with the given
302 width/height. $rstyle defines the initial rendition style (default: 754 width/height. $rstyle defines the initial rendition style (default:
303 "OVERLAY_RSTYLE"). 755 "OVERLAY_RSTYLE").
322 If visible, hide the overlay, but do not destroy it. 774 If visible, hide the overlay, but do not destroy it.
323 775
324 $overlay->show 776 $overlay->show
325 If hidden, display the overlay again. 777 If hidden, display the overlay again.
326 778
779 $popup = $term->popup ($event)
780 Creates a new "urxvt::popup" object that implements a popup menu.
781 The $event *must* be the event causing the menu to pop up (a button
782 event, currently).
783
327 $cellwidth = $term->strwidth $string 784 $cellwidth = $term->strwidth ($string)
328 Returns the number of screen-cells this string would need. Correctly 785 Returns the number of screen-cells this string would need. Correctly
329 accounts for wide and combining characters. 786 accounts for wide and combining characters.
330 787
331 $octets = $term->locale_encode $string 788 $octets = $term->locale_encode ($string)
332 Convert the given text string into the corresponding locale 789 Convert the given text string into the corresponding locale
333 encoding. 790 encoding.
334 791
335 $string = $term->locale_decode $octets 792 $string = $term->locale_decode ($octets)
336 Convert the given locale-encoded octets into a perl string. 793 Convert the given locale-encoded octets into a perl string.
794
795 $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
796 XORs the rendition values in the given span with the provided value
797 (default: "RS_RVid"), which *MUST NOT* contain font styles. Useful
798 in refresh hooks to provide effects similar to the selection.
799
800 $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[,
801 $rstyle2]])
802 Similar to "scr_xor_span", but xors a rectangle instead. Trailing
803 whitespace will additionally be xored with the $rstyle2, which
804 defaults to "RS_RVid | RS_Uline", which removes reverse video again
805 and underlines it instead. Both styles *MUST NOT* contain font
806 styles.
807
808 $term->scr_bell
809 Ring the bell!
810
811 $term->scr_add_lines ($string)
812 Write the given text string to the screen, as if output by the
813 application running inside the terminal. It may not contain command
814 sequences (escape codes), but is free to use line feeds, carriage
815 returns and tabs. The string is a normal text string, not in
816 locale-dependent encoding.
817
818 Normally its not a good idea to use this function, as programs might
819 be confused by changes in cursor position or scrolling. Its useful
820 inside a "on_add_lines" hook, though.
821
822 $term->scr_change_screen ($screen)
823 Switch to given screen - 0 primary, 1 secondary.
824
825 $term->cmd_parse ($octets)
826 Similar to "scr_add_lines", but the argument must be in the
827 locale-specific encoding of the terminal and can contain command
828 sequences (escape codes) that will be interpreted.
337 829
338 $term->tt_write ($octets) 830 $term->tt_write ($octets)
339 Write the octets given in $data to the tty (i.e. as program input). 831 Write the octets given in $data to the tty (i.e. as program input).
340 To pass characters instead of octets, you should convert your 832 To pass characters instead of octets, you should convert your
341 strings first to the locale-specific encoding using 833 strings first to the locale-specific encoding using
342 "$term->locale_encode". 834 "$term->locale_encode".
343 835
836 $old_events = $term->pty_ev_events ([$new_events])
837 Replaces the event mask of the pty watcher by the given event mask.
838 Can be used to suppress input and output handling to the pty/tty.
839 See the description of "urxvt::timer->events". Make sure to always
840 restore the previous value.
841
842 $fd = $term->pty_fd
843 Returns the master file descriptor for the pty in use, or -1 if no
844 pty is used.
845
846 $windowid = $term->parent
847 Return the window id of the toplevel window.
848
849 $windowid = $term->vt
850 Return the window id of the terminal window.
851
852 $term->vt_emask_add ($x_event_mask)
853 Adds the specified events to the vt event mask. Useful e.g. when you
854 want to receive pointer events all the times:
855
856 $term->vt_emask_add (urxvt::PointerMotionMask);
857
858 $window_width = $term->width
859 $window_height = $term->height
860 $font_width = $term->fwidth
861 $font_height = $term->fheight
862 $font_ascent = $term->fbase
344 $nrow = $term->nrow 863 $terminal_rows = $term->nrow
345 $ncol = $term->ncol 864 $terminal_columns = $term->ncol
346 Return the number of rows/columns of the terminal window (i.e. as 865 $has_focus = $term->focus
347 specified by "-geometry", excluding any scrollback). 866 $is_mapped = $term->mapped
867 $max_scrollback = $term->saveLines
868 $nrow_plus_saveLines = $term->total_rows
869 $topmost_scrollback_row = $term->top_row
870 Return various integers describing terminal characteristics.
348 871
872 $x_display = $term->display_id
873 Return the DISPLAY used by rxvt-unicode.
874
875 $lc_ctype = $term->locale
876 Returns the LC_CTYPE category string used by this rxvt-unicode.
877
349 $nsaved = $term->nsaved 878 $env = $term->env
350 Returns the number of lines in the scrollback buffer. 879 Returns a copy of the environment in effect for the terminal as a
880 hashref similar to "\%ENV".
881
882 $modifiermask = $term->ModLevel3Mask
883 $modifiermask = $term->ModMetaMask
884 $modifiermask = $term->ModNumLockMask
885 Return the modifier masks corresponding to the "ISO Level 3 Shift"
886 (often AltGr), the meta key (often Alt) and the num lock key, if
887 applicable.
888
889 $screen = $term->current_screen
890 Returns the currently displayed screen (0 primary, 1 secondary).
891
892 $cursor_is_hidden = $term->hidden_cursor
893 Returns wether the cursor is currently hidden or not.
351 894
352 $view_start = $term->view_start ([$newvalue]) 895 $view_start = $term->view_start ([$newvalue])
353 Returns the negative row number of the topmost line. Minimum value 896 Returns the row number of the topmost displayed line. Maximum value
354 is 0, which displays the normal terminal contents. Larger values 897 is 0, which displays the normal terminal contents. Lower values
355 scroll this many lines into the scrollback buffer. 898 scroll this many lines into the scrollback buffer.
356 899
357 $term->want_refresh 900 $term->want_refresh
358 Requests a screen refresh. At the next opportunity, rxvt-unicode 901 Requests a screen refresh. At the next opportunity, rxvt-unicode
359 will compare the on-screen display with its stored representation. 902 will compare the on-screen display with its stored representation.
372 line, starting at column $start_col (default 0), which is useful to 915 line, starting at column $start_col (default 0), which is useful to
373 replace only parts of a line. The font index in the rendition will 916 replace only parts of a line. The font index in the rendition will
374 automatically be updated. 917 automatically be updated.
375 918
376 $text is in a special encoding: tabs and wide characters that use 919 $text is in a special encoding: tabs and wide characters that use
377 more than one cell when displayed are padded with urxvt::NOCHAR 920 more than one cell when displayed are padded with $urxvt::NOCHAR
378 characters ("chr 65535"). Characters with combining characters and 921 (chr 65535) characters. Characters with combining characters and
379 other characters that do not fit into the normal tetx encoding will 922 other characters that do not fit into the normal tetx encoding will
380 be replaced with characters in the private use area. 923 be replaced with characters in the private use area.
381 924
382 You have to obey this encoding when changing text. The advantage is 925 You have to obey this encoding when changing text. The advantage is
383 that "substr" and similar functions work on screen cells and not on 926 that "substr" and similar functions work on screen cells and not on
409 $line = $term->line ($row_number) 952 $line = $term->line ($row_number)
410 Create and return a new "urxvt::line" object that stores information 953 Create and return a new "urxvt::line" object that stores information
411 about the logical line that row $row_number is part of. It supports 954 about the logical line that row $row_number is part of. It supports
412 the following methods: 955 the following methods:
413 956
414 $text = $line->t 957 $text = $line->t ([$new_text])
415 Returns the full text of the line, similar to "ROW_t" 958 Returns or replaces the full text of the line, similar to
959 "ROW_t"
416 960
417 $rend = $line->r 961 $rend = $line->r ([$new_rend])
418 Returns the full rendition array of the line, similar to "ROW_r" 962 Returns or replaces the full rendition array of the line,
963 similar to "ROW_r"
419 964
420 $length = $line->l 965 $length = $line->l
421 Returns the length of the line in cells, similar to "ROW_l". 966 Returns the length of the line in cells, similar to "ROW_l".
422 967
423 $rownum = $line->beg 968 $rownum = $line->beg
425 Return the row number of the first/last row of the line, 970 Return the row number of the first/last row of the line,
426 respectively. 971 respectively.
427 972
428 $offset = $line->offset_of ($row, $col) 973 $offset = $line->offset_of ($row, $col)
429 Returns the character offset of the given row|col pair within 974 Returns the character offset of the given row|col pair within
430 the logical line. 975 the logical line. Works for rows outside the line, too, and
976 returns corresponding offsets outside the string.
431 977
432 ($row, $col) = $line->coord_of ($offset) 978 ($row, $col) = $line->coord_of ($offset)
433 Translates a string offset into terminal coordinates again. 979 Translates a string offset into terminal coordinates again.
434 980
435 ($row, $col) = $line->coord_of ($offset) =item $text =
436 $term->special_encode $string 981 $text = $term->special_encode $string
437 Converts a perl string into the special encoding used by 982 Converts a perl string into the special encoding used by
438 rxvt-unicode, where one character corresponds to one screen cell. 983 rxvt-unicode, where one character corresponds to one screen cell.
439 See "$term->ROW_t" for details. 984 See "$term->ROW_t" for details.
440 985
441 $string = $term->special_decode $text 986 $string = $term->special_decode $text
442 Converts rxvt-unicodes text reprsentation into a perl string. See 987 Converts rxvt-unicodes text reprsentation into a perl string. See
443 "$term->ROW_t" for details. 988 "$term->ROW_t" for details.
989
990 $success = $term->grab_button ($button, $modifiermask)
991 Registers a synchronous button grab. See the XGrabButton manpage.
992
993 $success = $term->grab ($eventtime[, $sync])
994 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
995 synchronous ($sync is true). Also remembers the grab timestampe.
996
997 $term->allow_events_async
998 Calls XAllowEvents with AsyncBoth for the most recent grab.
999
1000 $term->allow_events_sync
1001 Calls XAllowEvents with SyncBoth for the most recent grab.
1002
1003 $term->allow_events_replay
1004 Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for
1005 the most recent grab.
1006
1007 $term->ungrab
1008 Calls XUngrab for the most recent grab. Is called automatically on
1009 evaluation errors, as it is better to lose the grab in the error
1010 case as the session.
1011
1012 $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1013 $atom_name = $term->XGetAtomName ($atom)
1014 @atoms = $term->XListProperties ($window)
1015 ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1016 $term->XChangeWindowProperty ($window, $property, $type, $format,
1017 $octets)
1018 $term->XDeleteProperty ($window, $property)
1019 $window = $term->DefaultRootWindow
1020 $term->XReparentWindow ($window, $parent, [$x, $y])
1021 $term->XMapWindow ($window)
1022 $term->XUnmapWindow ($window)
1023 $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1024 ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x,
1025 $y)
1026 $term->XChangeInput ($window, $add_events[, $del_events])
1027 Various X or X-related functions. The $term object only serves as
1028 the source of the display, otherwise those functions map
1029 more-or-less directory onto the X functions of the same name.
1030
1031 The "urxvt::popup" Class
1032 $popup->add_title ($title)
1033 Adds a non-clickable title to the popup.
1034
1035 $popup->add_separator ([$sepchr])
1036 Creates a separator, optionally using the character given as
1037 $sepchr.
1038
1039 $popup->add_button ($text, $cb)
1040 Adds a clickable button to the popup. $cb is called whenever it is
1041 selected.
1042
1043 $popup->add_toggle ($text, $cb, $initial_value)
1044 Adds a toggle/checkbox item to the popup. Teh callback gets called
1045 whenever it gets toggled, with a boolean indicating its value as its
1046 first argument.
1047
1048 $popup->show
1049 Displays the popup (which is initially hidden).
444 1050
445 The "urxvt::timer" Class 1051 The "urxvt::timer" Class
446 This class implements timer watchers/events. Time is represented as a 1052 This class implements timer watchers/events. Time is represented as a
447 fractional number of seconds since the epoch. Example: 1053 fractional number of seconds since the epoch. Example:
448 1054
477 Start the timer. 1083 Start the timer.
478 1084
479 $timer = $timer->start ($tstamp) 1085 $timer = $timer->start ($tstamp)
480 Set the event trigger time to $tstamp and start the timer. 1086 Set the event trigger time to $tstamp and start the timer.
481 1087
1088 $timer = $timer->after ($delay)
1089 Like "start", but sets the expiry timer to c<urxvt::NOW + $delay>.
1090
482 $timer = $timer->stop 1091 $timer = $timer->stop
483 Stop the timer. 1092 Stop the timer.
484 1093
485 The "urxvt::iow" Class 1094 The "urxvt::iow" Class
486 This class implements io watchers/events. Example: 1095 This class implements io watchers/events. Example:
487 1096
488 $term->{socket} = ... 1097 $term->{socket} = ...
489 $term->{iow} = urxvt::iow 1098 $term->{iow} = urxvt::iow
490 ->new 1099 ->new
491 ->fd (fileno $term->{socket}) 1100 ->fd (fileno $term->{socket})
492 ->events (1) # wait for read data 1101 ->events (urxvt::EVENT_READ)
493 ->start 1102 ->start
494 ->cb (sub { 1103 ->cb (sub {
495 my ($iow, $revents) = @_; 1104 my ($iow, $revents) = @_;
496 # $revents must be 1 here, no need to check 1105 # $revents must be 1 here, no need to check
497 sysread $term->{socket}, my $buf, 8192 1106 sysread $term->{socket}, my $buf, 8192
507 1116
508 $iow = $iow->fd ($fd) 1117 $iow = $iow->fd ($fd)
509 Set the filedescriptor (not handle) to watch. 1118 Set the filedescriptor (not handle) to watch.
510 1119
511 $iow = $iow->events ($eventmask) 1120 $iow = $iow->events ($eventmask)
512 Set the event mask to watch. Bit #0 (value 1) enables watching for 1121 Set the event mask to watch. The only allowed values are
513 read data, Bit #1 (value 2) enables watching for write data. 1122 "urxvt::EVENT_READ" and "urxvt::EVENT_WRITE", which might be ORed
1123 together, or "urxvt::EVENT_NONE".
514 1124
515 $iow = $iow->start 1125 $iow = $iow->start
516 Start watching for requested events on the given handle. 1126 Start watching for requested events on the given handle.
517 1127
518 $iow = $iow->stop 1128 $iow = $iow->stop
519 Stop watching for events on the given filehandle. 1129 Stop watching for events on the given filehandle.
1130
1131 The "urxvt::iw" Class
1132 This class implements idle watchers, that get called automatically when
1133 the process is idle. They should return as fast as possible, after doing
1134 some useful work.
1135
1136 $iw = new urxvt::iw
1137 Create a new idle watcher object in stopped state.
1138
1139 $iw = $iw->cb (sub { my ($iw) = @_; ... })
1140 Set the callback to be called when the watcher triggers.
1141
1142 $timer = $timer->start
1143 Start the watcher.
1144
1145 $timer = $timer->stop
1146 Stop the watcher.
1147
1148 The "urxvt::pw" Class
1149 This class implements process watchers. They create an event whenever a
1150 process exits, after which they stop automatically.
1151
1152 my $pid = fork;
1153 ...
1154 $term->{pw} = urxvt::pw
1155 ->new
1156 ->start ($pid)
1157 ->cb (sub {
1158 my ($pw, $exit_status) = @_;
1159 ...
1160 });
1161
1162 $pw = new urxvt::pw
1163 Create a new process watcher in stopped state.
1164
1165 $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1166 Set the callback to be called when the timer triggers.
1167
1168 $pw = $timer->start ($pid)
1169 Tells the wqtcher to start watching for process $pid.
1170
1171 $pw = $pw->stop
1172 Stop the watcher.
520 1173
521ENVIRONMENT 1174ENVIRONMENT
522 URXVT_PERL_VERBOSITY 1175 URXVT_PERL_VERBOSITY
523 This variable controls the verbosity level of the perl extension. Higher 1176 This variable controls the verbosity level of the perl extension. Higher
524 numbers indicate more verbose output. 1177 numbers indicate more verbose output.
525 1178
526 =0 - only fatal messages 1179 == 0 - fatal messages
527 =3 - script loading and management 1180 >= 3 - script loading and management
528 =10 - all events received 1181 >=10 - all called hooks
1182 >=11 - hook reutrn values
529 1183
530AUTHOR 1184AUTHOR
531 Marc Lehmann <pcg@goof.com> 1185 Marc Lehmann <pcg@goof.com>
532 http://software.schmorp.de/pkg/rxvt-unicode 1186 http://software.schmorp.de/pkg/rxvt-unicode
533 1187

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines