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Revision 1.37 by root, Wed Jan 25 21:48:47 2006 UTC

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
34 Or by adding them to the resource for extensions loaded by default:
35
36 URxvt.perl-ext-common: default,automove-background,selection-autotransform
33 37
34 selection (enabled by default) 38 selection (enabled by default)
35 (More) intelligent selection. This extension tries to be more 39 (More) intelligent selection. This extension tries to be more
36 intelligent when the user extends selections (double-click and 40 intelligent when the user extends selections (double-click and
37 further clicks). Right now, it tries to select words, urls and 41 further clicks). Right now, it tries to select words, urls and
54 be used for the match. For example, the followign adds a regex that 58 be used for the match. For example, the followign adds a regex that
55 matches everything between two vertical bars: 59 matches everything between two vertical bars:
56 60
57 URxvt.selection.pattern-0: \\|([^|]+)\\| 61 URxvt.selection.pattern-0: \\|([^|]+)\\|
58 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
59 You can look at the source of the selection extension to see more 70 You can look at the source of the selection extension to see more
60 interesting uses, such as parsing a line from beginning to end. 71 interesting uses, such as parsing a line from beginning to end.
61 72
62 This extension also offers following bindable keyboard commands: 73 This extension also offers following bindable keyboard commands:
63 74
71 options at runtime. 82 options at runtime.
72 83
73 selection-popup (enabled by default) 84 selection-popup (enabled by default)
74 Binds a popup menu to Ctrl-Button3 that lets you convert the 85 Binds a popup menu to Ctrl-Button3 that lets you convert the
75 selection text into various other formats/action (such as uri 86 selection text into various other formats/action (such as uri
76 unescaping, perl evalution, web-browser starting etc.), depending on 87 unescaping, perl evaluation, web-browser starting etc.), depending
77 content. 88 on content.
78 89
79 Other extensions can extend this popup menu by pushing a code 90 Other extensions can extend this popup menu by pushing a code
80 reference onto "@{ $term-"{selection_popup_hook} }>, that is called 91 reference onto "@{ $term-"{selection_popup_hook} }>, that is called
81 whenever the popup is displayed. 92 whenever the popup is displayed.
82 93
108 "End" jumps to the bottom. "Escape" leaves search mode and returns 119 "End" jumps to the bottom. "Escape" leaves search mode and returns
109 to the point where search was started, while "Enter" or "Return" 120 to the point where search was started, while "Enter" or "Return"
110 stay at the current position and additionally stores the first match 121 stay at the current position and additionally stores the first match
111 in the current line into the primary selection. 122 in the current line into the primary selection.
112 123
124 readline (enabled by default)
125 A support package that tries to make editing with readline easier.
126 At the moment, it reacts to clicking with the left mouse button by
127 trying to move the text cursor to this position. It does so by
128 generating as many cursor-left or cursor-right keypresses as
129 required (the this only works for programs that correctly support
130 wide characters).
131
132 To avoid too many false positives, this is only done when:
133
134 - the tty is in ICANON state.
135 - the text cursor is visible.
136 - the primary screen is currently being displayed.
137 - the mouse is on the same (multi-row-) line as the text cursor.
138
139 The normal selection mechanism isn't disabled, so quick successive
140 clicks might interfere with selection creation in harmless ways.
141
113 selection-autotransform 142 selection-autotransform
114 This selection allows you to do automatic transforms on a selection 143 This selection allows you to do automatic transforms on a selection
115 whenever a selection is made. 144 whenever a selection is made.
116 145
117 It works by specifying perl snippets (most useful is a single "s///" 146 It works by specifying perl snippets (most useful is a single "s///"
142 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/ 171 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
143 172
144 The first line tells the selection code to treat the unchanging part 173 The first line tells the selection code to treat the unchanging part
145 of every error message as a selection pattern, and the second line 174 of every error message as a selection pattern, and the second line
146 transforms the message into vi commands to load the file. 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.
147 187
148 mark-urls 188 mark-urls
149 Uses per-line display filtering ("on_line_update") to underline urls 189 Uses per-line display filtering ("on_line_update") to underline urls
150 and make them clickable. When middle-clicked, the program specified 190 and make them clickable. When middle-clicked, the program specified
151 in the resource "urlLauncher" (default "x-www-browser") will be 191 in the resource "urlLauncher" (default "x-www-browser") will be
152 started with the URL as first argument. 192 started with the URL as first argument.
153 193
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
154 automove-background 205 automove-background
155 This is basically a one-line extension that dynamically changes the 206 This is basically a one-line extension that dynamically changes the
156 background pixmap offset to the window position, in effect creating 207 background pixmap offset to the window position, in effect creating
157 the same effect as pseudo transparency with a custom pixmap. No 208 the same effect as pseudo transparency with a custom pixmap. No
158 scaling is supported in this mode. Exmaple: 209 scaling is supported in this mode. Exmaple:
165 U+259F) by a similar-looking ascii character. 216 U+259F) by a similar-looking ascii character.
166 217
167 digital-clock 218 digital-clock
168 Displays a digital clock using the built-in overlay. 219 Displays a digital clock using the built-in overlay.
169 220
170 example-refresh-hooks 221 remote-clipboard
171 Displays a very simple digital clock in the upper right corner of 222 Somewhat of a misnomer, this extension adds two menu entries to the
172 the window. Illustrates overwriting the refresh callbacks to create 223 selection popup that allows one ti run external commands to store
173 your own overlays or changes. 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'
174 239
175 selection-pastebin 240 selection-pastebin
176 This is a little rarely useful extension that Uploads the selection 241 This is a little rarely useful extension that Uploads the selection
177 as textfile to a remote site (or does other things). (The 242 as textfile to a remote site (or does other things). (The
178 implementation is not currently secure for use in a multiuser 243 implementation is not currently secure for use in a multiuser
197 After a successful upload the selection will be replaced by the text 262 After a successful upload the selection will be replaced by the text
198 given in the "selection-pastebin-url" resource (again, the % is the 263 given in the "selection-pastebin-url" resource (again, the % is the
199 placeholder for the filename): 264 placeholder for the filename):
200 265
201 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% 266 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
267
268 example-refresh-hooks
269 Displays a very simple digital clock in the upper right corner of
270 the window. Illustrates overwriting the refresh callbacks to create
271 your own overlays or changes.
202 272
203API DOCUMENTATION 273API DOCUMENTATION
204 General API Considerations 274 General API Considerations
205 All objects (such as terminals, time watchers etc.) are typical 275 All objects (such as terminals, time watchers etc.) are typical
206 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
260 be called whenever the relevant event happens. 330 be called whenever the relevant event happens.
261 331
262 The first argument passed to them is an extension oject as described in 332 The first argument passed to them is an extension oject as described in
263 the in the "Extension Objects" section. 333 the in the "Extension Objects" section.
264 334
265 All of these hooks must return a boolean value. If it is true, then the 335 All of these hooks must return a boolean value. If any of the called
266 event counts as being *consumed*, and the invocation of other hooks is 336 hooks returns true, then the event counts as being *consumed*, and the
267 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.
268 code.
269 338
270 *When in doubt, return a false value (preferably "()").* 339 *When in doubt, return a false value (preferably "()").*
271 340
272 on_init $term 341 on_init $term
273 Called after a new terminal object has been initialized, but before 342 Called after a new terminal object has been initialized, but before
274 windows are created or the command gets run. Most methods are unsafe 343 windows are created or the command gets run. Most methods are unsafe
275 to call or deliver senseless data, as terminal size and other 344 to call or deliver senseless data, as terminal size and other
276 characteristics have not yet been determined. You can safely query 345 characteristics have not yet been determined. You can safely query
277 and change resources, though. 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).
278 357
279 on_reset $term 358 on_reset $term
280 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
281 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
282 size-related variables. 361 size-related variables.
283
284 on_start $term
285 Called at the very end of initialisation of a new terminal, just
286 before returning to the mainloop.
287 362
288 on_child_start $term, $pid 363 on_child_start $term, $pid
289 Called just after the child process has been "fork"ed. 364 Called just after the child process has been "fork"ed.
290 365
291 on_child_exit $term, $status 366 on_child_exit $term, $status
378 display code is run after this hook, and takes precedence. 453 display code is run after this hook, and takes precedence.
379 454
380 on_refresh_end $term 455 on_refresh_end $term
381 Called just after the screen gets redrawn. See "on_refresh_begin". 456 Called just after the screen gets redrawn. See "on_refresh_begin".
382 457
383 on_keyboard_command $term, $string 458 on_user_command $term, $string
384 Called whenever the user presses a key combination that has a 459 Called whenever the a user-configured event is being activated (e.g.
385 "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
386 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.
387 465
388 on_x_event $term, $event 466 on_x_event $term, $event
389 Called on every X event received on the vt window (and possibly 467 Called on every X event received on the vt window (and possibly
390 other windows). Should only be used as a last resort. Most event 468 other windows). Should only be used as a last resort. Most event
391 structure members are not passed. 469 structure members are not passed.
397 on_focus_out $term 475 on_focus_out $term
398 Called wheneever the window loses keyboard focus, before 476 Called wheneever the window loses keyboard focus, before
399 rxvt-unicode does focus out processing. 477 rxvt-unicode does focus out processing.
400 478
401 on_configure_notify $term, $event 479 on_configure_notify $term, $event
480 on_property_notify $term, $event
402 on_key_press $term, $event, $keysym, $octets 481 on_key_press $term, $event, $keysym, $octets
403 on_key_release $term, $event, $keysym 482 on_key_release $term, $event, $keysym
404 on_button_press $term, $event 483 on_button_press $term, $event
405 on_button_release $term, $event 484 on_button_release $term, $event
406 on_motion_notify $term, $event 485 on_motion_notify $term, $event
410 terminal If the hook returns true, then the even will be ignored by 489 terminal If the hook returns true, then the even will be ignored by
411 rxvt-unicode. 490 rxvt-unicode.
412 491
413 The event is a hash with most values as named by Xlib (see the 492 The event is a hash with most values as named by Xlib (see the
414 XEvent manpage), with the additional members "row" and "col", which 493 XEvent manpage), with the additional members "row" and "col", which
415 are the row and column under the mouse cursor. 494 are the (real, not screen-based) row and column under the mouse
495 cursor.
416 496
417 "on_key_press" additionally receives the string rxvt-unicode would 497 "on_key_press" additionally receives the string rxvt-unicode would
418 output, if any, in locale-specific encoding. 498 output, if any, in locale-specific encoding.
419 499
420 subwindow. 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).
421 507
422 Variables in the "urxvt" Package 508 Variables in the "urxvt" Package
423 $urxvt::LIBDIR 509 $urxvt::LIBDIR
424 The rxvt-unicode library directory, where, among other things, the 510 The rxvt-unicode library directory, where, among other things, the
425 perl modules and scripts are stored. 511 perl modules and scripts are stored.
432 The basename of the installed binaries, usually "urxvt". 518 The basename of the installed binaries, usually "urxvt".
433 519
434 $urxvt::TERM 520 $urxvt::TERM
435 The current terminal. This variable stores the current "urxvt::term" 521 The current terminal. This variable stores the current "urxvt::term"
436 object, whenever a callback/hook is executing. 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.
437 539
438 Functions in the "urxvt" Package 540 Functions in the "urxvt" Package
439 urxvt::fatal $errormessage 541 urxvt::fatal $errormessage
440 Fatally aborts execution with the given error message. Avoid at all 542 Fatally aborts execution with the given error message. Avoid at all
441 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
715 817
716 Normally its not a good idea to use this function, as programs might 818 Normally its not a good idea to use this function, as programs might
717 be confused by changes in cursor position or scrolling. Its useful 819 be confused by changes in cursor position or scrolling. Its useful
718 inside a "on_add_lines" hook, though. 820 inside a "on_add_lines" hook, though.
719 821
822 $term->scr_change_screen ($screen)
823 Switch to given screen - 0 primary, 1 secondary.
824
720 $term->cmd_parse ($octets) 825 $term->cmd_parse ($octets)
721 Similar to "scr_add_lines", but the argument must be in the 826 Similar to "scr_add_lines", but the argument must be in the
722 locale-specific encoding of the terminal and can contain command 827 locale-specific encoding of the terminal and can contain command
723 sequences (escape codes) that will be interpreted. 828 sequences (escape codes) that will be interpreted.
724 829
731 $old_events = $term->pty_ev_events ([$new_events]) 836 $old_events = $term->pty_ev_events ([$new_events])
732 Replaces the event mask of the pty watcher by the given event mask. 837 Replaces the event mask of the pty watcher by the given event mask.
733 Can be used to suppress input and output handling to the pty/tty. 838 Can be used to suppress input and output handling to the pty/tty.
734 See the description of "urxvt::timer->events". Make sure to always 839 See the description of "urxvt::timer->events". Make sure to always
735 restore the previous value. 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.
736 845
737 $windowid = $term->parent 846 $windowid = $term->parent
738 Return the window id of the toplevel window. 847 Return the window id of the toplevel window.
739 848
740 $windowid = $term->vt 849 $windowid = $term->vt
775 $modifiermask = $term->ModNumLockMask 884 $modifiermask = $term->ModNumLockMask
776 Return the modifier masks corresponding to the "ISO Level 3 Shift" 885 Return the modifier masks corresponding to the "ISO Level 3 Shift"
777 (often AltGr), the meta key (often Alt) and the num lock key, if 886 (often AltGr), the meta key (often Alt) and the num lock key, if
778 applicable. 887 applicable.
779 888
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.
894
780 $view_start = $term->view_start ([$newvalue]) 895 $view_start = $term->view_start ([$newvalue])
781 Returns the row number of the topmost displayed line. Maximum value 896 Returns the row number of the topmost displayed line. Maximum value
782 is 0, which displays the normal terminal contents. Lower values 897 is 0, which displays the normal terminal contents. Lower values
783 scroll this many lines into the scrollback buffer. 898 scroll this many lines into the scrollback buffer.
784 899
800 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
801 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
802 automatically be updated. 917 automatically be updated.
803 918
804 $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
805 more than one cell when displayed are padded with urxvt::NOCHAR 920 more than one cell when displayed are padded with $urxvt::NOCHAR
806 characters ("chr 65535"). Characters with combining characters and 921 (chr 65535) characters. Characters with combining characters and
807 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
808 be replaced with characters in the private use area. 923 be replaced with characters in the private use area.
809 924
810 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
811 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
891 1006
892 $term->ungrab 1007 $term->ungrab
893 Calls XUngrab for the most recent grab. Is called automatically on 1008 Calls XUngrab for the most recent grab. Is called automatically on
894 evaluation errors, as it is better to lose the grab in the error 1009 evaluation errors, as it is better to lose the grab in the error
895 case as the session. 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.
896 1030
897 The "urxvt::popup" Class 1031 The "urxvt::popup" Class
898 $popup->add_title ($title) 1032 $popup->add_title ($title)
899 Adds a non-clickable title to the popup. 1033 Adds a non-clickable title to the popup.
900 1034
992 Start watching for requested events on the given handle. 1126 Start watching for requested events on the given handle.
993 1127
994 $iow = $iow->stop 1128 $iow = $iow->stop
995 Stop watching for events on the given filehandle. 1129 Stop watching for events on the given filehandle.
996 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.
1173
997ENVIRONMENT 1174ENVIRONMENT
998 URXVT_PERL_VERBOSITY 1175 URXVT_PERL_VERBOSITY
999 This variable controls the verbosity level of the perl extension. Higher 1176 This variable controls the verbosity level of the perl extension. Higher
1000 numbers indicate more verbose output. 1177 numbers indicate more verbose output.
1001 1178

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