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 1.6 by root, Tue Jan 3 04:20:37 2006 UTC vs.
Revision 1.18 by root, Tue Jan 10 18:09:22 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 selection (enabled by default)
35 Miscellaneous selection modifications. 35 (More) intelligent selection. This extension tries to be more
36 intelligent when the user extends selections (double-click). Right
37 now, it tries to select urls and complete shell-quoted arguments,
38 which is very convenient, too, if your ls supports
39 "--quoting-style=shell".
40
41 It also offers the following bindable keyboard command:
36 42
37 rot13 43 rot13
38 Rot-13 the selection when activated. Used via keyboard trigger: 44 Rot-13 the selection when activated. Used via keyboard trigger:
39 45
40 URxvt.keysym.C-M-r: perl:selection:rot13 46 URxvt.keysym.C-M-r: perl:selection:rot13
41 47
48 option-popup (enabled by default)
49 Binds a popup menu to Ctrl-Button2 that lets you toggle (some)
50 options at runtime.
51
52 selection-popup (enabled by default)
53 Binds a popup menu to Ctrl-Button3 that lets you convert the
54 selection text into various other formats/action (such as uri
55 unescaping, perl evalution, web-browser starting etc.), depending on
56 content.
57
58 searchable-scrollback<hotkey> (enabled by default)
59 Adds regex search functionality to the scrollback buffer, triggered
60 by a hotkey (default: "M-s"). When in search mode, normal terminal
61 input/output is suspended.
62
63 "/" starts an incremental regex search, "n" searches further, "p" or
64 "N" jump to the previous match, "G" jumps to the bottom and clears
65 the history, "enter" leaves search mode at the current position and
66 "escape" returns to the original position.
67
42 digital-clock 68 digital-clock
43 Displays a digital clock using the built-in overlay. 69 Displays a digital clock using the built-in overlay.
70
71 mark-urls
72 Uses per-line display filtering ("on_line_update") to underline
73 urls.
74
75 block-graphics-to-ascii
76 A not very useful example of filtering all text output to the
77 terminal, by replacing all line-drawing characters (U+2500 ..
78 U+259F) by a similar-looking ascii character.
44 79
45 example-refresh-hooks 80 example-refresh-hooks
46 Displays a very simple digital clock in the upper right corner of 81 Displays a very simple digital clock in the upper right corner of
47 the window. Illustrates overwriting the refresh callbacks to create 82 the window. Illustrates overwriting the refresh callbacks to create
48 your own overlays or changes. 83 your own overlays or changes.
49 84
85API DOCUMENTATION
50 General API Considerations 86 General API Considerations
51 All objects (such as terminals, time watchers etc.) are typical 87 All objects (such as terminals, time watchers etc.) are typical
52 reference-to-hash objects. The hash can be used to store anything you 88 reference-to-hash objects. The hash can be used to store anything you
53 like. All members starting with an underscore (such as "_ptr" or 89 like. All members starting with an underscore (such as "_ptr" or
54 "_hook") are reserved for internal uses and must not be accessed or 90 "_hook") are reserved for internal uses and MUST NOT be accessed or
55 modified). 91 modified).
56 92
57 When objects are destroyed on the C++ side, the perl object hashes are 93 When objects are destroyed on the C++ side, the perl object hashes are
58 emptied, so its best to store related objects such as time watchers and 94 emptied, so its best to store related objects such as time watchers and
59 the like inside the terminal object so they get destroyed as soon as the 95 the like inside the terminal object so they get destroyed as soon as the
60 terminal is destroyed. 96 terminal is destroyed.
61 97
98 Argument names also often indicate the type of a parameter. Here are
99 some hints on what they mean:
100
101 $text
102 Rxvt-unicodes special way of encoding text, where one "unicode"
103 character always represents one screen cell. See row_t for a
104 discussion of this format.
105
106 $string
107 A perl text string, with an emphasis on *text*. It can store all
108 unicode characters and is to be distinguished with text encoded in a
109 specific encoding (often locale-specific) and binary data.
110
111 $octets
112 Either binary data or - more common - a text string encoded in a
113 locale-specific way.
114
115 Extension Objects
116 Very perl extension is a perl class. A separate perl object is created
117 for each terminal and each extension and passed as the first parameter
118 to hooks. So extensions can use their $self object without having to
119 think about other extensions, with the exception of methods and members
120 that begin with an underscore character "_": these are reserved for
121 internal use.
122
123 Although it isn't a "urxvt::term" object, you can call all methods of
124 the "urxvt::term" class on this object.
125
126 It has the following methods and data members:
127
128 $urxvt_term = $self->{term}
129 Returns the "urxvt::term" object associated with this instance of
130 the extension. This member *must not* be changed in any way.
131
132 $self->enable ($hook_name => $cb, [$hook_name => $cb..])
133 Dynamically enable the given hooks (named without the "on_" prefix)
134 for this extension, replacing any previous hook. This is useful when
135 you want to overwrite time-critical hooks only temporarily.
136
137 $self->disable ($hook_name[, $hook_name..])
138 Dynamically disable the given hooks.
139
62 Hooks 140 Hooks
63 The following subroutines can be declared in loaded scripts, and will be 141 The following subroutines can be declared in extension files, and will
64 called whenever the relevant event happens. 142 be called whenever the relevant event happens.
65 143
144 The first argument passed to them is an extension oject as described in
145 the in the "Extension Objects" section.
146
66 All of them must return a boolean value. If it is true, then the event 147 All of these hooks must return a boolean value. If it is true, then the
67 counts as being *consumed*, and the invocation of other hooks is 148 event counts as being *consumed*, and the invocation of other hooks is
68 skipped, and the relevant action might not be carried out by the C++ 149 skipped, and the relevant action might not be carried out by the C++
69 code. 150 code.
70 151
71 When in doubt, return a false value (preferably "()"). 152 *When in doubt, return a false value (preferably "()").*
72 153
73 on_init $term 154 on_init $term
74 Called after a new terminal object has been initialized, but before 155 Called after a new terminal object has been initialized, but before
75 windows are created or the command gets run. 156 windows are created or the command gets run. Most methods are unsafe
157 to call or deliver senseless data, as terminal size and other
158 characteristics have not yet been determined. You can safely query
159 and change resources, though.
76 160
77 on_reset $term 161 on_reset $term
78 Called after the screen is "reset" for any reason, such as resizing 162 Called after the screen is "reset" for any reason, such as resizing
79 or control sequences. Here is where you can react on changes to 163 or control sequences. Here is where you can react on changes to
80 size-related variables. 164 size-related variables.
98 queried and changed by calling "$term->selection". 182 queried and changed by calling "$term->selection".
99 183
100 Returning a true value aborts selection grabbing. It will still be 184 Returning a true value aborts selection grabbing. It will still be
101 hilighted. 185 hilighted.
102 186
103 on_focus_in $term 187 on_sel_extend $term
104 Called whenever the window gets the keyboard focus, before urxvt 188 Called whenever the user tries to extend the selection (e.g. with a
105 does focus in processing. 189 double click) and is either supposed to return false (normal
190 operation), or should extend the selection itelf and return true to
191 suppress the built-in processing.
106 192
107 on_focus_out $term 193 See the selection example extension.
108 Called wheneever the window loses keyboard focus, before urxvt does
109 focus out processing.
110 194
111 on_view_change $term, $offset 195 on_view_change $term, $offset
112 Called whenever the view offset changes, i..e the user or program 196 Called whenever the view offset changes, i..e the user or program
113 scrolls. Offset 0 means display the normal terminal, positive values 197 scrolls. Offset 0 means display the normal terminal, positive values
114 show this many lines of scrollback. 198 show this many lines of scrollback.
120 204
121 It is called before lines are scrolled out (so rows 0 .. min ($lines 205 It is called before lines are scrolled out (so rows 0 .. min ($lines
122 - 1, $nrow - 1) represent the lines to be scrolled out). $saved is 206 - 1, $nrow - 1) represent the lines to be scrolled out). $saved is
123 the total number of lines that will be in the scrollback buffer. 207 the total number of lines that will be in the scrollback buffer.
124 208
125 on_tty_activity $term *NYI* 209 on_osc_seq $term, $string
126 Called whenever the program(s) running in the urxvt window send 210 Called whenever the ESC ] 777 ; string ST command sequence (OSC =
127 output. 211 operating system command) is processed. Cursor position and other
212 state information is up-to-date when this happens. For
213 interoperability, the string should start with the extension name
214 and a colon, to distinguish it from commands for other extensions,
215 and this might be enforced in the future.
216
217 Be careful not ever to trust (in a security sense) the data you
218 receive, as its source can not easily be controleld (e-mail content,
219 messages from other users on the same system etc.).
220
221 on_add_lines $term, $string
222 Called whenever text is about to be output, with the text as
223 argument. You can filter/change and output the text yourself by
224 returning a true value and calling "$term->scr_add_lines" yourself.
225 Please note that this might be very slow, however, as your hook is
226 called for all text being output.
227
228 on_tt_write $term, $octets
229 Called whenever some data is written to the tty/pty and can be used
230 to suppress or filter tty input.
231
232 on_line_update $term, $row
233 Called whenever a line was updated or changed. Can be used to filter
234 screen output (e.g. underline urls or other useless stuff). Only
235 lines that are being shown will be filtered, and, due to performance
236 reasons, not always immediately.
237
238 The row number is always the topmost row of the line if the line
239 spans multiple rows.
240
241 Please note that, if you change the line, then the hook might get
242 called later with the already-modified line (e.g. if unrelated parts
243 change), so you cannot just toggle rendition bits, but only set
244 them.
128 245
129 on_refresh_begin $term 246 on_refresh_begin $term
130 Called just before the screen gets redrawn. Can be used for overlay 247 Called just before the screen gets redrawn. Can be used for overlay
131 or similar effects by modify terminal contents in refresh_begin, and 248 or similar effects by modify terminal contents in refresh_begin, and
132 restoring them in refresh_end. The built-in overlay and selection 249 restoring them in refresh_end. The built-in overlay and selection
138 on_keyboard_command $term, $string 255 on_keyboard_command $term, $string
139 Called whenever the user presses a key combination that has a 256 Called whenever the user presses a key combination that has a
140 "perl:string" action bound to it (see description of the keysym 257 "perl:string" action bound to it (see description of the keysym
141 resource in the rxvt(1) manpage). 258 resource in the rxvt(1) manpage).
142 259
260 on_focus_in $term
261 Called whenever the window gets the keyboard focus, before
262 rxvt-unicode does focus in processing.
263
264 on_focus_out $term
265 Called wheneever the window loses keyboard focus, before
266 rxvt-unicode does focus out processing.
267
268 on_key_press $term, $event, $keysym, $octets
269 on_key_release $term, $event, $keysym
270 on_button_press $term, $event
271 on_button_release $term, $event
272 on_motion_notify $term, $event
273 on_map_notify $term, $event
274 on_unmap_notify $term, $event
275 Called whenever the corresponding X event is received for the
276 terminal If the hook returns true, then the even will be ignored by
277 rxvt-unicode.
278
279 The event is a hash with most values as named by Xlib (see the
280 XEvent manpage), with the additional members "row" and "col", which
281 are the row and column under the mouse cursor.
282
283 "on_key_press" additionally receives the string rxvt-unicode would
284 output, if any, in locale-specific encoding.
285
286 subwindow.
287
288 Variables in the "urxvt" Package
289 $urxvt::TERM
290 The current terminal. This variable stores the current "urxvt::term"
291 object, whenever a callback/hook is executing.
292
143 Functions in the "urxvt" Package 293 Functions in the "urxvt" Package
294 $term = new urxvt [arg...]
295 Creates a new terminal, very similar as if you had started it with
296 "system $binfile, arg...". Croaks (and probably outputs an error
297 message) if the new instance couldn't be created. Returns "undef" if
298 the new instance didn't initialise perl, and the terminal object
299 otherwise. The "init" and "start" hooks will be called during the
300 call.
301
144 urxvt::fatal $errormessage 302 urxvt::fatal $errormessage
145 Fatally aborts execution with the given error message. Avoid at all 303 Fatally aborts execution with the given error message. Avoid at all
146 costs! The only time this is acceptable is when the terminal process 304 costs! The only time this is acceptable is when the terminal process
147 starts up. 305 starts up.
148 306
152 function that calls this function. 310 function that calls this function.
153 311
154 Using this function has the advantage that its output ends up in the 312 Using this function has the advantage that its output ends up in the
155 correct place, e.g. on stderr of the connecting urxvtc client. 313 correct place, e.g. on stderr of the connecting urxvtc client.
156 314
315 $is_safe = urxvt::safe
316 Returns true when it is safe to do potentially unsafe things, such
317 as evaluating perl code specified by the user. This is true when
318 urxvt was started setuid or setgid.
319
157 $time = urxvt::NOW 320 $time = urxvt::NOW
158 Returns the "current time" (as per the event loop). 321 Returns the "current time" (as per the event loop).
322
323 urxvt::CurrentTime
324 urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask,
325 Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask,
326 Button5Mask, AnyModifier
327 Various constants for use in X calls and event processing.
159 328
160 RENDITION 329 RENDITION
161 Rendition bitsets contain information about colour, font, font styles 330 Rendition bitsets contain information about colour, font, font styles
162 and similar information for each screen cell. 331 and similar information for each screen cell.
163 332
194 initially zero. 363 initially zero.
195 364
196 $rend = urxvt::SET_CUSTOM ($rend, $new_value) 365 $rend = urxvt::SET_CUSTOM ($rend, $new_value)
197 Change the custom value. 366 Change the custom value.
198 367
368 The "urxvt::anyevent" Class
369 The sole purpose of this class is to deliver an interface to the
370 "AnyEvent" module - any module using it will work inside urxvt without
371 further work. The only exception is that you cannot wait on condition
372 variables, but non-blocking condvar use is ok. What this means is that
373 you cannot use blocking APIs, but the non-blocking variant should work.
374
199 The "urxvt::term" Class 375 The "urxvt::term" Class
376 $term->destroy
377 Destroy the terminal object (close the window, free resources etc.).
378
379 $isset = $term->option ($optval[, $set])
380 Returns true if the option specified by $optval is enabled, and
381 optionally change it. All option values are stored by name in the
382 hash %urxvt::OPTION. Options not enabled in this binary are not in
383 the hash.
384
385 Here is a a likely non-exhaustive list of option names, please see
386 the source file /src/optinc.h to see the actual list:
387
388 borderLess console cursorBlink cursorUnderline hold iconic insecure
389 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
390 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
391 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
392 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
393 tripleclickwords utmpInhibit visualBell
394
200 $value = $term->resource ($name[, $newval]) 395 $value = $term->resource ($name[, $newval])
201 Returns the current resource value associated with a given name and 396 Returns the current resource value associated with a given name and
202 optionally sets a new value. Setting values is most useful in the 397 optionally sets a new value. Setting values is most useful in the
203 "init" hook. Unset resources are returned and accepted as "undef". 398 "init" hook. Unset resources are returned and accepted as "undef".
204 399
213 Please note that resource strings will currently only be freed when 408 Please note that resource strings will currently only be freed when
214 the terminal is destroyed, so changing options frequently will eat 409 the terminal is destroyed, so changing options frequently will eat
215 memory. 410 memory.
216 411
217 Here is a a likely non-exhaustive list of resource names, not all of 412 Here is a a likely non-exhaustive list of resource names, not all of
218 which are supported in every build, please see the source to see the 413 which are supported in every build, please see the source file
219 actual list: 414 /src/rsinc.h to see the actual list:
220 415
221 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 416 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
222 borderLess color cursorBlink cursorUnderline cutchars delete_key 417 borderLess color cursorBlink cursorUnderline cutchars delete_key
223 display_name embed ext_bwidth fade font geometry hold iconName 418 display_name embed ext_bwidth fade font geometry hold iconName
224 imFont imLocale inputMethod insecure int_bwidth intensityStyles 419 imFont imLocale inputMethod insecure int_bwidth intensityStyles
225 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 420 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
226 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 421 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
227 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 422 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
228 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 423 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
229 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 424 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
230 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 425 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
231 shade term_name title transparent transparent_all tripleclickwords 426 shade term_name title transparent transparent_all tripleclickwords
232 utmpInhibit visualBell 427 utmpInhibit visualBell
233 428
429 $success = $term->parse_keysym ($keysym_spec, $command_string)
430 Adds a keymap translation exactly as specified via a resource. See
431 the "keysym" resource in the rxvt(1) manpage.
432
433 $rend = $term->rstyle ([$new_rstyle])
434 Return and optionally change the current rendition. Text that is
435 output by the terminal application will use this style.
436
437 ($row, $col) = $term->screen_cur ([$row, $col])
438 Return the current coordinates of the text cursor position and
439 optionally set it (which is usually bad as applications don't expect
440 that).
441
234 ($row, $col) = $term->selection_mark ([$row, $col]) 442 ($row, $col) = $term->selection_mark ([$row, $col])
235 ($row, $col) = $term->selection_beg ([$row, $col]) 443 ($row, $col) = $term->selection_beg ([$row, $col])
236 ($row, $col) = $term->selection_end ([$row, $col]) 444 ($row, $col) = $term->selection_end ([$row, $col])
237 Return the current values of the selection mark, begin or end 445 Return the current values of the selection mark, begin or end
238 positions, and optionally set them to new values. 446 positions, and optionally set them to new values.
243 451
244 $oldtext = $term->selection ([$newtext]) 452 $oldtext = $term->selection ([$newtext])
245 Return the current selection text and optionally replace it by 453 Return the current selection text and optionally replace it by
246 $newtext. 454 $newtext.
247 455
248 #=item $term->overlay ($x, $y, $text) # #Create a simple multi-line 456 $term->overlay_simple ($x, $y, $text)
249 overlay box. See the next method for details. # #=cut 457 Create a simple multi-line overlay box. See the next method for
250 458 details.
251 sub urxvt::term::scr_overlay { die; my ($self, $x, $y, $text) = @_;
252
253 my @lines = split /\n/, $text;
254
255 my $w = 0;
256 for (map $self->strwidth ($_), @lines) {
257 $w = $_ if $w < $_;
258 }
259
260 $self->scr_overlay_new ($x, $y, $w, scalar @lines);
261 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
262 }
263 459
264 $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 460 $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
265 Create a new (empty) overlay at the given position with the given 461 Create a new (empty) overlay at the given position with the given
266 width/height. $rstyle defines the initial rendition style (default: 462 width/height. $rstyle defines the initial rendition style (default:
267 "OVERLAY_RSTYLE"). 463 "OVERLAY_RSTYLE").
273 right/bottom side, respectively. 469 right/bottom side, respectively.
274 470
275 This method returns an urxvt::overlay object. The overlay will be 471 This method returns an urxvt::overlay object. The overlay will be
276 visible as long as the perl object is referenced. 472 visible as long as the perl object is referenced.
277 473
278 Currently, the only method on the "urxvt::overlay" object is "set": 474 The methods currently supported on "urxvt::overlay" objects are:
279 475
280 $overlay->set ($x, $y, $text, $rend) 476 $overlay->set ($x, $y, $text, $rend)
281 Similar to "$term->ROW_t" and "$term->ROW_r" in that it puts text in 477 Similar to "$term->ROW_t" and "$term->ROW_r" in that it puts
282 rxvt-unicode's special encoding and an array of rendition values at 478 text in rxvt-unicode's special encoding and an array of
283 a specific position inside the overlay. 479 rendition values at a specific position inside the overlay.
284 480
481 $overlay->hide
482 If visible, hide the overlay, but do not destroy it.
483
484 $overlay->show
485 If hidden, display the overlay again.
486
487 $popup = $term->popup ($event)
488 Creates a new "urxvt::popup" object that implements a popup menu.
489 The $event *must* be the event causing the menu to pop up (a button
490 event, currently).
491
285 $cellwidth = $term->strwidth $string 492 $cellwidth = $term->strwidth ($string)
286 Returns the number of screen-cells this string would need. Correctly 493 Returns the number of screen-cells this string would need. Correctly
287 accounts for wide and combining characters. 494 accounts for wide and combining characters.
288 495
289 $octets = $term->locale_encode $string 496 $octets = $term->locale_encode ($string)
290 Convert the given text string into the corresponding locale 497 Convert the given text string into the corresponding locale
291 encoding. 498 encoding.
292 499
293 $string = $term->locale_decode $octets 500 $string = $term->locale_decode ($octets)
294 Convert the given locale-encoded octets into a perl string. 501 Convert the given locale-encoded octets into a perl string.
502
503 $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
504 XORs the rendition values in the given span with the provided value
505 (default: "RS_RVid"). Useful in refresh hooks to provide effects
506 similar to the selection.
507
508 $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[,
509 $rstyle2]])
510 Similar to "scr_xor_span", but xors a rectangle instead. Trailing
511 whitespace will additionally be xored with the $rstyle2, which
512 defaults to "RS_RVid | RS_Uline", which removes reverse video again
513 and underlines it instead.
514
515 $term->scr_bell
516 Ring the bell!
517
518 $term->scr_add_lines ($string)
519 Write the given text string to the screen, as if output by the
520 application running inside the terminal. It may not contain command
521 sequences (escape codes), but is free to use line feeds, carriage
522 returns and tabs. The string is a normal text string, not in
523 locale-dependent encoding.
524
525 Normally its not a good idea to use this function, as programs might
526 be confused by changes in cursor position or scrolling. Its useful
527 inside a "on_add_lines" hook, though.
528
529 $term->cmd_parse ($octets)
530 Similar to "scr_add_lines", but the argument must be in the
531 locale-specific encoding of the terminal and can contain command
532 sequences (escape codes) that will be interpreted.
295 533
296 $term->tt_write ($octets) 534 $term->tt_write ($octets)
297 Write the octets given in $data to the tty (i.e. as program input). 535 Write the octets given in $data to the tty (i.e. as program input).
298 To pass characters instead of octets, you should convert your 536 To pass characters instead of octets, you should convert your
299 strings first to the locale-specific encoding using 537 strings first to the locale-specific encoding using
300 "$term->locale_encode". 538 "$term->locale_encode".
301 539
540 $old_events = $term->pty_ev_events ([$new_events])
541 Replaces the event mask of the pty watcher by the given event mask.
542 Can be used to suppress input and output handling to the pty/tty.
543 See the description of "urxvt::timer->events". Make sure to always
544 restore the previous value.
545
546 $windowid = $term->parent
547 Return the window id of the toplevel window.
548
549 $windowid = $term->vt
550 Return the window id of the terminal window.
551
552 $window_width = $term->width
553 $window_height = $term->height
554 $font_width = $term->fwidth
555 $font_height = $term->fheight
556 $font_ascent = $term->fbase
302 $nrow = $term->nrow 557 $terminal_rows = $term->nrow
303 $ncol = $term->ncol 558 $terminal_columns = $term->ncol
304 Return the number of rows/columns of the terminal window (i.e. as 559 $has_focus = $term->focus
305 specified by "-geometry", excluding any scrollback).
306
307 $nsaved = $term->nsaved 560 $is_mapped = $term->mapped
308 Returns the number of lines in the scrollback buffer. 561 $max_scrollback = $term->saveLines
562 $nrow_plus_saveLines = $term->total_rows
563 $lines_in_scrollback = $term->nsaved
564 Return various integers describing terminal characteristics.
565
566 $lc_ctype = $term->locale
567 Returns the LC_CTYPE category string used by this rxvt-unicode.
568
569 $x_display = $term->display_id
570 Return the DISPLAY used by rxvt-unicode.
571
572 $modifiermask = $term->ModLevel3Mask
573 $modifiermask = $term->ModMetaMask
574 $modifiermask = $term->ModNumLockMask
575 Return the modifier masks corresponding to the "ISO Level 3 Shift"
576 (often AltGr), the meta key (often Alt) and the num lock key, if
577 applicable.
309 578
310 $view_start = $term->view_start ([$newvalue]) 579 $view_start = $term->view_start ([$newvalue])
311 Returns the negative row number of the topmost line. Minimum value 580 Returns the negative row number of the topmost line. Minimum value
312 is 0, which displays the normal terminal contents. Larger values 581 is 0, which displays the normal terminal contents. Larger values
313 scroll this many lines into the scrollback buffer. 582 scroll this many lines into the scrollback buffer.
321 590
322 $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 591 $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
323 Returns the text of the entire row with number $row_number. Row 0 is 592 Returns the text of the entire row with number $row_number. Row 0 is
324 the topmost terminal line, row "$term->$ncol-1" is the bottommost 593 the topmost terminal line, row "$term->$ncol-1" is the bottommost
325 terminal line. The scrollback buffer starts at line -1 and extends 594 terminal line. The scrollback buffer starts at line -1 and extends
326 to line "-$term->nsaved". 595 to line "-$term->nsaved". Nothing will be returned if a nonexistent
596 line is requested.
327 597
328 If $new_text is specified, it will replace characters in the current 598 If $new_text is specified, it will replace characters in the current
329 line, starting at column $start_col (default 0), which is useful to 599 line, starting at column $start_col (default 0), which is useful to
330 replace only parts of a line. The font index in the rendition will 600 replace only parts of a line. The font index in the rendition will
331 automatically be updated. 601 automatically be updated.
352 622
353 See the section on RENDITION, above. 623 See the section on RENDITION, above.
354 624
355 $length = $term->ROW_l ($row_number[, $new_length]) 625 $length = $term->ROW_l ($row_number[, $new_length])
356 Returns the number of screen cells that are in use ("the line 626 Returns the number of screen cells that are in use ("the line
357 length"). If it is -1, then the line is part of a multiple-row 627 length"). Unlike the urxvt core, this returns "$term->ncol" if the
358 logical "line", which means all characters are in use and it is 628 line is joined with the following one.
359 continued on the next row. 629
630 $bool = $term->is_longer ($row_number)
631 Returns true if the row is part of a multiple-row logical "line"
632 (i.e. joined with the following row), which means all characters are
633 in use and it is continued on the next row (and possibly a
634 continuation of the previous row(s)).
635
636 $line = $term->line ($row_number)
637 Create and return a new "urxvt::line" object that stores information
638 about the logical line that row $row_number is part of. It supports
639 the following methods:
640
641 $text = $line->t ([$new_text])
642 Returns or replaces the full text of the line, similar to
643 "ROW_t"
644
645 $rend = $line->r ([$new_rend])
646 Returns or replaces the full rendition array of the line,
647 similar to "ROW_r"
648
649 $length = $line->l
650 Returns the length of the line in cells, similar to "ROW_l".
651
652 $rownum = $line->beg
653 $rownum = $line->end
654 Return the row number of the first/last row of the line,
655 respectively.
656
657 $offset = $line->offset_of ($row, $col)
658 Returns the character offset of the given row|col pair within
659 the logical line.
660
661 ($row, $col) = $line->coord_of ($offset)
662 Translates a string offset into terminal coordinates again.
360 663
361 $text = $term->special_encode $string 664 $text = $term->special_encode $string
362 Converts a perl string into the special encoding used by 665 Converts a perl string into the special encoding used by
363 rxvt-unicode, where one character corresponds to one screen cell. 666 rxvt-unicode, where one character corresponds to one screen cell.
364 See "$term->ROW_t" for details. 667 See "$term->ROW_t" for details.
365 668
366 $string = $term->special_decode $text 669 $string = $term->special_decode $text
367 Converts rxvt-unicodes text reprsentation into a perl string. See 670 Converts rxvt-unicodes text reprsentation into a perl string. See
368 "$term->ROW_t" for details. 671 "$term->ROW_t" for details.
369 672
673 $success = $term->grab_button ($button, $modifiermask)
674 Registers a synchronous button grab. See the XGrabButton manpage.
675
676 $success = $term->grab ($eventtime[, $sync])
677 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
678 synchronous ($sync is true). Also remembers the grab timestampe.
679
680 $term->allow_events_async
681 Calls XAllowEvents with AsyncBoth for the most recent grab.
682
683 $term->allow_events_sync
684 Calls XAllowEvents with SyncBoth for the most recent grab.
685
686 $term->allow_events_replay
687 Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for
688 the most recent grab.
689
690 $term->ungrab
691 Calls XUngrab for the most recent grab. Is called automatically on
692 evaluation errors, as it is better to lose the grab in the error
693 case as the session.
694
695 The "urxvt::popup" Class
370 The "urxvt::timer" Class 696 The "urxvt::timer" Class
371 This class implements timer watchers/events. Time is represented as a 697 This class implements timer watchers/events. Time is represented as
372 fractional number of seconds since the epoch. Example: 698 a fractional number of seconds since the epoch. Example:
373 699
374 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); 700 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
375 $term->{timer} = urxvt::timer 701 $term->{timer} = urxvt::timer
376 ->new 702 ->new
377 ->interval (1) 703 ->interval (1)
378 ->cb (sub { 704 ->cb (sub {
379 $term->{overlay}->set (0, 0, 705 $term->{overlay}->set (0, 0,
380 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); 706 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
381 }); 707 });
382 708
383 $timer = new urxvt::timer 709 $timer = new urxvt::timer
384 Create a new timer object in started state. It is scheduled to fire 710 Create a new timer object in started state. It is scheduled to
385 immediately. 711 fire immediately.
386 712
387 $timer = $timer->cb (sub { my ($timer) = @_; ... }) 713 $timer = $timer->cb (sub { my ($timer) = @_; ... })
388 Set the callback to be called when the timer triggers. 714 Set the callback to be called when the timer triggers.
389 715
390 $tstamp = $timer->at 716 $tstamp = $timer->at
391 Return the time this watcher will fire next. 717 Return the time this watcher will fire next.
392 718
393 $timer = $timer->set ($tstamp) 719 $timer = $timer->set ($tstamp)
394 Set the time the event is generated to $tstamp. 720 Set the time the event is generated to $tstamp.
395 721
396 $timer = $timer->interval ($interval) 722 $timer = $timer->interval ($interval)
397 Normally (and when $interval is 0), the timer will automatically 723 Normally (and when $interval is 0), the timer will automatically
398 stop after it has fired once. If $interval is non-zero, then the 724 stop after it has fired once. If $interval is non-zero, then the
399 timer is automatically rescheduled at the given intervals. 725 timer is automatically rescheduled at the given intervals.
400 726
401 $timer = $timer->start 727 $timer = $timer->start
402 Start the timer. 728 Start the timer.
403 729
404 $timer = $timer->start ($tstamp) 730 $timer = $timer->start ($tstamp)
405 Set the event trigger time to $tstamp and start the timer. 731 Set the event trigger time to $tstamp and start the timer.
406 732
407 $timer = $timer->stop 733 $timer = $timer->stop
408 Stop the timer. 734 Stop the timer.
409 735
410 The "urxvt::iow" Class 736 The "urxvt::iow" Class
411 This class implements io watchers/events. Example: 737 This class implements io watchers/events. Example:
412 738
413 $term->{socket} = ... 739 $term->{socket} = ...
414 $term->{iow} = urxvt::iow 740 $term->{iow} = urxvt::iow
415 ->new 741 ->new
416 ->fd (fileno $term->{socket}) 742 ->fd (fileno $term->{socket})
417 ->events (1) # wait for read data 743 ->events (urxvt::EVENT_READ)
418 ->start 744 ->start
419 ->cb (sub { 745 ->cb (sub {
420 my ($iow, $revents) = @_; 746 my ($iow, $revents) = @_;
421 # $revents must be 1 here, no need to check 747 # $revents must be 1 here, no need to check
422 sysread $term->{socket}, my $buf, 8192 748 sysread $term->{socket}, my $buf, 8192
423 or end-of-file; 749 or end-of-file;
424 }); 750 });
425 751
426 $iow = new urxvt::iow 752 $iow = new urxvt::iow
427 Create a new io watcher object in stopped state. 753 Create a new io watcher object in stopped state.
428 754
429 $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... }) 755 $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })
430 Set the callback to be called when io events are triggered. 756 Set the callback to be called when io events are triggered.
431 $reventmask is a bitset as described in the "events" method. 757 $reventmask is a bitset as described in the "events" method.
432 758
433 $iow = $iow->fd ($fd) 759 $iow = $iow->fd ($fd)
434 Set the filedescriptor (not handle) to watch. 760 Set the filedescriptor (not handle) to watch.
435 761
436 $iow = $iow->events ($eventmask) 762 $iow = $iow->events ($eventmask)
437 Set the event mask to watch. Bit #0 (value 1) enables watching for 763 Set the event mask to watch. The only allowed values are
438 read data, Bit #1 (value 2) enables watching for write data. 764 "urxvt::EVENT_READ" and "urxvt::EVENT_WRITE", which might be
765 ORed together, or "urxvt::EVENT_NONE".
439 766
440 $iow = $iow->start 767 $iow = $iow->start
441 Start watching for requested events on the given handle. 768 Start watching for requested events on the given handle.
442 769
443 $iow = $iow->stop 770 $iow = $iow->stop
444 Stop watching for events on the given filehandle. 771 Stop watching for events on the given filehandle.
445 772
446ENVIRONMENT 773ENVIRONMENT
447 URXVT_PERL_VERBOSITY 774 URXVT_PERL_VERBOSITY
448 This variable controls the verbosity level of the perl extension. Higher 775 This variable controls the verbosity level of the perl extension.
449 numbers indicate more verbose output. 776 Higher numbers indicate more verbose output.
450 777
451 0 - only fatal messages 778 == 0 - fatal messages
452 3 - script loading and management 779 >= 3 - script loading and management
453 10 - all events received 780 >=10 - all events received
454 781
455AUTHOR 782AUTHOR
456 Marc Lehmann <pcg@goof.com> 783 Marc Lehmann <pcg@goof.com>
457 http://software.schmorp.de/pkg/rxvt-unicode 784 http://software.schmorp.de/pkg/rxvt-unicode
458 785

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines