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 1.20 by root, Wed Jan 11 01:00:04 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 Intelligent selection. This extension tries to be more intelligent 35 (More) intelligent selection. This extension tries to be more
36 when the user extends selections (double-click). Right now, it tries 36 intelligent when the user extends selections (double-click). Right
37 to select urls and complete shell-quoted arguments, which is very 37 now, it tries to select urls and complete shell-quoted arguments,
38 convenient, too, if your ls supports "--quoting-style=shell". 38 which is very convenient, too, if your ls supports
39 "--quoting-style=shell".
39 40
40 It also offers the following bindable event: 41 It also offers the following bindable keyboard command:
41 42
42 rot13 43 rot13
43 Rot-13 the selection when activated. Used via keyboard trigger: 44 Rot-13 the selection when activated. Used via keyboard trigger:
44 45
45 URxvt.keysym.C-M-r: perl:selection:rot13 46 URxvt.keysym.C-M-r: perl:selection:rot13
46 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
47 digital-clock 68 digital-clock
48 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.
49 79
50 example-refresh-hooks 80 example-refresh-hooks
51 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
52 the window. Illustrates overwriting the refresh callbacks to create 82 the window. Illustrates overwriting the refresh callbacks to create
53 your own overlays or changes. 83 your own overlays or changes.
54 84
85API DOCUMENTATION
55 General API Considerations 86 General API Considerations
56 All objects (such as terminals, time watchers etc.) are typical 87 All objects (such as terminals, time watchers etc.) are typical
57 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
58 like. All members starting with an underscore (such as "_ptr" or 89 like. All members starting with an underscore (such as "_ptr" or
59 "_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
62 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
63 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
64 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
65 terminal is destroyed. 96 terminal is destroyed.
66 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
67 Hooks 140 Hooks
68 The following subroutines can be declared in loaded scripts, and will be 141 The following subroutines can be declared in extension files, and will
69 called whenever the relevant event happens. 142 be called whenever the relevant event happens.
70 143
71 The first argument passed to them is an object private to each terminal 144 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 145 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.
76 146
77 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
78 counts as being *consumed*, and the invocation of other hooks is 148 event counts as being *consumed*, and the invocation of other hooks is
79 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++
80 code. 150 code.
81 151
82 When in doubt, return a false value (preferably "()"). 152 *When in doubt, return a false value (preferably "()").*
83 153
84 on_init $term 154 on_init $term
85 Called after a new terminal object has been initialized, but before 155 Called after a new terminal object has been initialized, but before
86 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.
87 160
88 on_reset $term 161 on_reset $term
89 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
90 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
91 size-related variables. 164 size-related variables.
117 operation), or should extend the selection itelf and return true to 190 operation), or should extend the selection itelf and return true to
118 suppress the built-in processing. 191 suppress the built-in processing.
119 192
120 See the selection example extension. 193 See the selection example extension.
121 194
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
130 on_view_change $term, $offset 195 on_view_change $term, $offset
131 Called whenever the view offset changes, i..e the user or program 196 Called whenever the view offset changes, i..e the user or program
132 scrolls. Offset 0 means display the normal terminal, positive values 197 scrolls. Offset 0 means display the normal terminal, positive values
133 show this many lines of scrollback. 198 show this many lines of scrollback.
134 199
138 may be larger than the scroll back buffer or the terminal. 203 may be larger than the scroll back buffer or the terminal.
139 204
140 It is called before lines are scrolled out (so rows 0 .. min ($lines 205 It is called before lines are scrolled out (so rows 0 .. min ($lines
141 - 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
142 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.
143
144 on_tty_activity $term *NYI*
145 Called whenever the program(s) running in the urxvt window send
146 output.
147 208
148 on_osc_seq $term, $string 209 on_osc_seq $term, $string
149 Called whenever the ESC ] 777 ; string ST command sequence (OSC = 210 Called whenever the ESC ] 777 ; string ST command sequence (OSC =
150 operating system command) is processed. Cursor position and other 211 operating system command) is processed. Cursor position and other
151 state information is up-to-date when this happens. For 212 state information is up-to-date when this happens. For
155 216
156 Be careful not ever to trust (in a security sense) the data you 217 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, 218 receive, as its source can not easily be controleld (e-mail content,
158 messages from other users on the same system etc.). 219 messages from other users on the same system etc.).
159 220
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.
245
160 on_refresh_begin $term 246 on_refresh_begin $term
161 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
162 or similar effects by modify terminal contents in refresh_begin, and 248 or similar effects by modify terminal contents in refresh_begin, and
163 restoring them in refresh_end. The built-in overlay and selection 249 restoring them in refresh_end. The built-in overlay and selection
164 display code is run after this hook, and takes precedence. 250 display code is run after this hook, and takes precedence.
169 on_keyboard_command $term, $string 255 on_keyboard_command $term, $string
170 Called whenever the user presses a key combination that has a 256 Called whenever the user presses a key combination that has a
171 "perl:string" action bound to it (see description of the keysym 257 "perl:string" action bound to it (see description of the keysym
172 resource in the rxvt(1) manpage). 258 resource in the rxvt(1) manpage).
173 259
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
174 Variables in the "urxvt" Package 288 Variables in the "urxvt" Package
289 $urxvt::LIBDIR
290 The rxvt-unicode library directory, where, among other things, the
291 perl modules and scripts are stored.
292
293 $urxvt::RESCLASS, $urxvt::RESCLASS
294 The resource class and name rxvt-unicode uses to look up X
295 resources.
296
297 $urxvt::RXVTNAME
298 The basename of the installed binaries, usually "urxvt".
299
175 $urxvt::TERM 300 $urxvt::TERM
176 The current terminal. Whenever a callback/Hook is bein executed,
177 this variable stores the current "urxvt::term" object. 301 The current terminal. This variable stores the current "urxvt::term"
302 object, whenever a callback/hook is executing.
303
304 *
178 305
179 Functions in the "urxvt" Package 306 Functions in the "urxvt" Package
180 urxvt::fatal $errormessage 307 urxvt::fatal $errormessage
181 Fatally aborts execution with the given error message. Avoid at all 308 Fatally aborts execution with the given error message. Avoid at all
182 costs! The only time this is acceptable is when the terminal process 309 costs! The only time this is acceptable is when the terminal process
188 function that calls this function. 315 function that calls this function.
189 316
190 Using this function has the advantage that its output ends up in the 317 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. 318 correct place, e.g. on stderr of the connecting urxvtc client.
192 319
320 Messages have a size limit of 1023 bytes currently.
321
322 $is_safe = urxvt::safe
323 Returns true when it is safe to do potentially unsafe things, such
324 as evaluating perl code specified by the user. This is true when
325 urxvt was started setuid or setgid.
326
193 $time = urxvt::NOW 327 $time = urxvt::NOW
194 Returns the "current time" (as per the event loop). 328 Returns the "current time" (as per the event loop).
329
330 urxvt::CurrentTime
331 urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask,
332 Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask,
333 Button5Mask, AnyModifier
334 Various constants for use in X calls and event processing.
195 335
196 RENDITION 336 RENDITION
197 Rendition bitsets contain information about colour, font, font styles 337 Rendition bitsets contain information about colour, font, font styles
198 and similar information for each screen cell. 338 and similar information for each screen cell.
199 339
217 357
218 $foreground = urxvt::GET_BASEFG $rend 358 $foreground = urxvt::GET_BASEFG $rend
219 $background = urxvt::GET_BASEBG $rend 359 $background = urxvt::GET_BASEBG $rend
220 Return the foreground/background colour index, respectively. 360 Return the foreground/background colour index, respectively.
221 361
222 $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 362 $rend = urxvt::SET_FGCOLOR $rend, $new_colour
223 $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 363 $rend = urxvt::SET_BGCOLOR $rend, $new_colour
224 Replace the foreground/background colour in the rendition mask with 364 Replace the foreground/background colour in the rendition mask with
225 the specified one. 365 the specified one.
226 366
227 $value = urxvt::GET_CUSTOM ($rend) 367 $value = urxvt::GET_CUSTOM $rend
228 Return the "custom" value: Every rendition has 5 bits for use by 368 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 369 extensions. They can be set and changed as you like and are
230 initially zero. 370 initially zero.
231 371
232 $rend = urxvt::SET_CUSTOM ($rend, $new_value) 372 $rend = urxvt::SET_CUSTOM $rend, $new_value
233 Change the custom value. 373 Change the custom value.
234 374
375 The "urxvt::anyevent" Class
376 The sole purpose of this class is to deliver an interface to the
377 "AnyEvent" module - any module using it will work inside urxvt without
378 further programming. The only exception is that you cannot wait on
379 condition variables, but non-blocking condvar use is ok. What this means
380 is that you cannot use blocking APIs, but the non-blocking variant
381 should work.
382
235 The "urxvt::term" Class 383 The "urxvt::term" Class
384 $term = new urxvt::term $envhashref, $rxvtname, [arg...]
385 Creates a new terminal, very similar as if you had started it with
386 system "$rxvtname, arg...". $envhashref must be a reference to a
387 %ENV>-like "hash which defines the environment of the new terminal.
388 "
389
390 >Croaks (and probably outputs an error message) if the new instance
391 couldn't be created. Returns "undef" if the new instance didn't
392 initialise perl, and the terminal object otherwise. The "init" and
393 "start" hooks will be called during this call.
394
395 $term->destroy
396 Destroy the terminal object (close the window, free resources etc.).
397 Please note that rxvt will not exit as long as any event watchers
398 (timers, io watchers) are still active.
399
400 $isset = $term->option ($optval[, $set])
401 Returns true if the option specified by $optval is enabled, and
402 optionally change it. All option values are stored by name in the
403 hash %urxvt::OPTION. Options not enabled in this binary are not in
404 the hash.
405
406 Here is a a likely non-exhaustive list of option names, please see
407 the source file /src/optinc.h to see the actual list:
408
409 borderLess console cursorBlink cursorUnderline hold iconic insecure
410 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
411 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
412 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
413 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
414 tripleclickwords utmpInhibit visualBell
415
236 $value = $term->resource ($name[, $newval]) 416 $value = $term->resource ($name[, $newval])
237 Returns the current resource value associated with a given name and 417 Returns the current resource value associated with a given name and
238 optionally sets a new value. Setting values is most useful in the 418 optionally sets a new value. Setting values is most useful in the
239 "init" hook. Unset resources are returned and accepted as "undef". 419 "init" hook. Unset resources are returned and accepted as "undef".
240 420
249 Please note that resource strings will currently only be freed when 429 Please note that resource strings will currently only be freed when
250 the terminal is destroyed, so changing options frequently will eat 430 the terminal is destroyed, so changing options frequently will eat
251 memory. 431 memory.
252 432
253 Here is a a likely non-exhaustive list of resource names, not all of 433 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 434 which are supported in every build, please see the source file
255 actual list: 435 /src/rsinc.h to see the actual list:
256 436
257 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 437 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
258 borderLess color cursorBlink cursorUnderline cutchars delete_key 438 borderLess color cursorBlink cursorUnderline cutchars delete_key
259 display_name embed ext_bwidth fade font geometry hold iconName 439 display_name embed ext_bwidth fade font geometry hold iconName
260 imFont imLocale inputMethod insecure int_bwidth intensityStyles 440 imFont imLocale inputMethod insecure int_bwidth intensityStyles
261 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 441 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
262 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 442 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
263 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 443 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
264 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 444 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
265 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 445 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
266 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 446 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
267 shade term_name title transparent transparent_all tripleclickwords 447 shade term_name title transparent transparent_all tripleclickwords
268 utmpInhibit visualBell 448 utmpInhibit visualBell
269 449
450 $success = $term->parse_keysym ($keysym_spec, $command_string)
451 Adds a keymap translation exactly as specified via a resource. See
452 the "keysym" resource in the rxvt(1) manpage.
453
454 $rend = $term->rstyle ([$new_rstyle])
455 Return and optionally change the current rendition. Text that is
456 output by the terminal application will use this style.
457
458 ($row, $col) = $term->screen_cur ([$row, $col])
459 Return the current coordinates of the text cursor position and
460 optionally set it (which is usually bad as applications don't expect
461 that).
462
270 ($row, $col) = $term->selection_mark ([$row, $col]) 463 ($row, $col) = $term->selection_mark ([$row, $col])
271 ($row, $col) = $term->selection_beg ([$row, $col]) 464 ($row, $col) = $term->selection_beg ([$row, $col])
272 ($row, $col) = $term->selection_end ([$row, $col]) 465 ($row, $col) = $term->selection_end ([$row, $col])
273 Return the current values of the selection mark, begin or end 466 Return the current values of the selection mark, begin or end
274 positions, and optionally set them to new values. 467 positions, and optionally set them to new values.
279 472
280 $oldtext = $term->selection ([$newtext]) 473 $oldtext = $term->selection ([$newtext])
281 Return the current selection text and optionally replace it by 474 Return the current selection text and optionally replace it by
282 $newtext. 475 $newtext.
283 476
284 #=item $term->overlay ($x, $y, $text) # #Create a simple multi-line 477 $term->overlay_simple ($x, $y, $text)
285 overlay box. See the next method for details. # #=cut 478 Create a simple multi-line overlay box. See the next method for
286 479 details.
287 sub urxvt::term::scr_overlay { die; my ($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 }
299 480
300 $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 481 $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
301 Create a new (empty) overlay at the given position with the given 482 Create a new (empty) overlay at the given position with the given
302 width/height. $rstyle defines the initial rendition style (default: 483 width/height. $rstyle defines the initial rendition style (default:
303 "OVERLAY_RSTYLE"). 484 "OVERLAY_RSTYLE").
322 If visible, hide the overlay, but do not destroy it. 503 If visible, hide the overlay, but do not destroy it.
323 504
324 $overlay->show 505 $overlay->show
325 If hidden, display the overlay again. 506 If hidden, display the overlay again.
326 507
508 $popup = $term->popup ($event)
509 Creates a new "urxvt::popup" object that implements a popup menu.
510 The $event *must* be the event causing the menu to pop up (a button
511 event, currently).
512
327 $cellwidth = $term->strwidth $string 513 $cellwidth = $term->strwidth ($string)
328 Returns the number of screen-cells this string would need. Correctly 514 Returns the number of screen-cells this string would need. Correctly
329 accounts for wide and combining characters. 515 accounts for wide and combining characters.
330 516
331 $octets = $term->locale_encode $string 517 $octets = $term->locale_encode ($string)
332 Convert the given text string into the corresponding locale 518 Convert the given text string into the corresponding locale
333 encoding. 519 encoding.
334 520
335 $string = $term->locale_decode $octets 521 $string = $term->locale_decode ($octets)
336 Convert the given locale-encoded octets into a perl string. 522 Convert the given locale-encoded octets into a perl string.
523
524 $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
525 XORs the rendition values in the given span with the provided value
526 (default: "RS_RVid"). Useful in refresh hooks to provide effects
527 similar to the selection.
528
529 $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[,
530 $rstyle2]])
531 Similar to "scr_xor_span", but xors a rectangle instead. Trailing
532 whitespace will additionally be xored with the $rstyle2, which
533 defaults to "RS_RVid | RS_Uline", which removes reverse video again
534 and underlines it instead.
535
536 $term->scr_bell
537 Ring the bell!
538
539 $term->scr_add_lines ($string)
540 Write the given text string to the screen, as if output by the
541 application running inside the terminal. It may not contain command
542 sequences (escape codes), but is free to use line feeds, carriage
543 returns and tabs. The string is a normal text string, not in
544 locale-dependent encoding.
545
546 Normally its not a good idea to use this function, as programs might
547 be confused by changes in cursor position or scrolling. Its useful
548 inside a "on_add_lines" hook, though.
549
550 $term->cmd_parse ($octets)
551 Similar to "scr_add_lines", but the argument must be in the
552 locale-specific encoding of the terminal and can contain command
553 sequences (escape codes) that will be interpreted.
337 554
338 $term->tt_write ($octets) 555 $term->tt_write ($octets)
339 Write the octets given in $data to the tty (i.e. as program input). 556 Write the octets given in $data to the tty (i.e. as program input).
340 To pass characters instead of octets, you should convert your 557 To pass characters instead of octets, you should convert your
341 strings first to the locale-specific encoding using 558 strings first to the locale-specific encoding using
342 "$term->locale_encode". 559 "$term->locale_encode".
343 560
561 $old_events = $term->pty_ev_events ([$new_events])
562 Replaces the event mask of the pty watcher by the given event mask.
563 Can be used to suppress input and output handling to the pty/tty.
564 See the description of "urxvt::timer->events". Make sure to always
565 restore the previous value.
566
567 $windowid = $term->parent
568 Return the window id of the toplevel window.
569
570 $windowid = $term->vt
571 Return the window id of the terminal window.
572
573 $window_width = $term->width
574 $window_height = $term->height
575 $font_width = $term->fwidth
576 $font_height = $term->fheight
577 $font_ascent = $term->fbase
344 $nrow = $term->nrow 578 $terminal_rows = $term->nrow
345 $ncol = $term->ncol 579 $terminal_columns = $term->ncol
346 Return the number of rows/columns of the terminal window (i.e. as 580 $has_focus = $term->focus
347 specified by "-geometry", excluding any scrollback). 581 $is_mapped = $term->mapped
582 $max_scrollback = $term->saveLines
583 $nrow_plus_saveLines = $term->total_rows
584 $lines_in_scrollback = $term->nsaved
585 Return various integers describing terminal characteristics.
348 586
587 $x_display = $term->display_id
588 Return the DISPLAY used by rxvt-unicode.
589
590 $lc_ctype = $term->locale
591 Returns the LC_CTYPE category string used by this rxvt-unicode.
592
349 $nsaved = $term->nsaved 593 $env = $term->env
350 Returns the number of lines in the scrollback buffer. 594 Returns a copy of the environment in effect for the terminal as a
595 hashref similar to "\%ENV".
596
597 $modifiermask = $term->ModLevel3Mask
598 $modifiermask = $term->ModMetaMask
599 $modifiermask = $term->ModNumLockMask
600 Return the modifier masks corresponding to the "ISO Level 3 Shift"
601 (often AltGr), the meta key (often Alt) and the num lock key, if
602 applicable.
351 603
352 $view_start = $term->view_start ([$newvalue]) 604 $view_start = $term->view_start ([$newvalue])
353 Returns the negative row number of the topmost line. Minimum value 605 Returns the negative row number of the topmost line. Minimum value
354 is 0, which displays the normal terminal contents. Larger values 606 is 0, which displays the normal terminal contents. Larger values
355 scroll this many lines into the scrollback buffer. 607 scroll this many lines into the scrollback buffer.
409 $line = $term->line ($row_number) 661 $line = $term->line ($row_number)
410 Create and return a new "urxvt::line" object that stores information 662 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 663 about the logical line that row $row_number is part of. It supports
412 the following methods: 664 the following methods:
413 665
414 $text = $line->t 666 $text = $line->t ([$new_text])
415 Returns the full text of the line, similar to "ROW_t" 667 Returns or replaces the full text of the line, similar to
668 "ROW_t"
416 669
417 $rend = $line->r 670 $rend = $line->r ([$new_rend])
418 Returns the full rendition array of the line, similar to "ROW_r" 671 Returns or replaces the full rendition array of the line,
672 similar to "ROW_r"
419 673
420 $length = $line->l 674 $length = $line->l
421 Returns the length of the line in cells, similar to "ROW_l". 675 Returns the length of the line in cells, similar to "ROW_l".
422 676
423 $rownum = $line->beg 677 $rownum = $line->beg
430 the logical line. 684 the logical line.
431 685
432 ($row, $col) = $line->coord_of ($offset) 686 ($row, $col) = $line->coord_of ($offset)
433 Translates a string offset into terminal coordinates again. 687 Translates a string offset into terminal coordinates again.
434 688
435 ($row, $col) = $line->coord_of ($offset) =item $text =
436 $term->special_encode $string 689 $text = $term->special_encode $string
437 Converts a perl string into the special encoding used by 690 Converts a perl string into the special encoding used by
438 rxvt-unicode, where one character corresponds to one screen cell. 691 rxvt-unicode, where one character corresponds to one screen cell.
439 See "$term->ROW_t" for details. 692 See "$term->ROW_t" for details.
440 693
441 $string = $term->special_decode $text 694 $string = $term->special_decode $text
442 Converts rxvt-unicodes text reprsentation into a perl string. See 695 Converts rxvt-unicodes text reprsentation into a perl string. See
443 "$term->ROW_t" for details. 696 "$term->ROW_t" for details.
444 697
698 $success = $term->grab_button ($button, $modifiermask)
699 Registers a synchronous button grab. See the XGrabButton manpage.
700
701 $success = $term->grab ($eventtime[, $sync])
702 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
703 synchronous ($sync is true). Also remembers the grab timestampe.
704
705 $term->allow_events_async
706 Calls XAllowEvents with AsyncBoth for the most recent grab.
707
708 $term->allow_events_sync
709 Calls XAllowEvents with SyncBoth for the most recent grab.
710
711 $term->allow_events_replay
712 Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for
713 the most recent grab.
714
715 $term->ungrab
716 Calls XUngrab for the most recent grab. Is called automatically on
717 evaluation errors, as it is better to lose the grab in the error
718 case as the session.
719
720 The "urxvt::popup" Class
721 $popup->add_title ($title)
722 Adds a non-clickable title to the popup.
723
724 $popup->add_separator ([$sepchr])
725 Creates a separator, optionally using the character given as
726 $sepchr.
727
728 $popup->add_button ($text, $cb)
729 Adds a clickable button to the popup. $cb is called whenever it is
730 selected.
731
732 $popup->add_toggle ($text, $cb, $initial_value)
733 Adds a toggle/checkbox item to the popup. Teh callback gets called
734 whenever it gets toggled, with a boolean indicating its value as its
735 first argument.
736
737 $popup->show
738 Displays the popup (which is initially hidden).
739
445 The "urxvt::timer" Class 740 The "urxvt::timer" Class
446 This class implements timer watchers/events. Time is represented as a 741 This class implements timer watchers/events. Time is represented as
447 fractional number of seconds since the epoch. Example: 742 a fractional number of seconds since the epoch. Example:
448 743
449 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); 744 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
450 $term->{timer} = urxvt::timer 745 $term->{timer} = urxvt::timer
451 ->new 746 ->new
452 ->interval (1) 747 ->interval (1)
453 ->cb (sub { 748 ->cb (sub {
454 $term->{overlay}->set (0, 0, 749 $term->{overlay}->set (0, 0,
455 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); 750 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
456 }); 751 });
457 752
458 $timer = new urxvt::timer 753 $timer = new urxvt::timer
459 Create a new timer object in started state. It is scheduled to fire 754 Create a new timer object in started state. It is scheduled to
460 immediately. 755 fire immediately.
461 756
462 $timer = $timer->cb (sub { my ($timer) = @_; ... }) 757 $timer = $timer->cb (sub { my ($timer) = @_; ... })
463 Set the callback to be called when the timer triggers. 758 Set the callback to be called when the timer triggers.
464 759
465 $tstamp = $timer->at 760 $tstamp = $timer->at
466 Return the time this watcher will fire next. 761 Return the time this watcher will fire next.
467 762
468 $timer = $timer->set ($tstamp) 763 $timer = $timer->set ($tstamp)
469 Set the time the event is generated to $tstamp. 764 Set the time the event is generated to $tstamp.
470 765
471 $timer = $timer->interval ($interval) 766 $timer = $timer->interval ($interval)
472 Normally (and when $interval is 0), the timer will automatically 767 Normally (and when $interval is 0), the timer will automatically
473 stop after it has fired once. If $interval is non-zero, then the 768 stop after it has fired once. If $interval is non-zero, then the
474 timer is automatically rescheduled at the given intervals. 769 timer is automatically rescheduled at the given intervals.
475 770
476 $timer = $timer->start 771 $timer = $timer->start
477 Start the timer. 772 Start the timer.
478 773
479 $timer = $timer->start ($tstamp) 774 $timer = $timer->start ($tstamp)
480 Set the event trigger time to $tstamp and start the timer. 775 Set the event trigger time to $tstamp and start the timer.
481 776
482 $timer = $timer->stop 777 $timer = $timer->stop
483 Stop the timer. 778 Stop the timer.
484 779
485 The "urxvt::iow" Class 780 The "urxvt::iow" Class
486 This class implements io watchers/events. Example: 781 This class implements io watchers/events. Example:
487 782
488 $term->{socket} = ... 783 $term->{socket} = ...
489 $term->{iow} = urxvt::iow 784 $term->{iow} = urxvt::iow
490 ->new 785 ->new
491 ->fd (fileno $term->{socket}) 786 ->fd (fileno $term->{socket})
492 ->events (1) # wait for read data 787 ->events (urxvt::EVENT_READ)
493 ->start 788 ->start
494 ->cb (sub { 789 ->cb (sub {
495 my ($iow, $revents) = @_; 790 my ($iow, $revents) = @_;
496 # $revents must be 1 here, no need to check 791 # $revents must be 1 here, no need to check
497 sysread $term->{socket}, my $buf, 8192 792 sysread $term->{socket}, my $buf, 8192
498 or end-of-file; 793 or end-of-file;
499 }); 794 });
500 795
501 $iow = new urxvt::iow 796 $iow = new urxvt::iow
502 Create a new io watcher object in stopped state. 797 Create a new io watcher object in stopped state.
503 798
504 $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... }) 799 $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })
505 Set the callback to be called when io events are triggered. 800 Set the callback to be called when io events are triggered.
506 $reventmask is a bitset as described in the "events" method. 801 $reventmask is a bitset as described in the "events" method.
507 802
508 $iow = $iow->fd ($fd) 803 $iow = $iow->fd ($fd)
509 Set the filedescriptor (not handle) to watch. 804 Set the filedescriptor (not handle) to watch.
510 805
511 $iow = $iow->events ($eventmask) 806 $iow = $iow->events ($eventmask)
512 Set the event mask to watch. Bit #0 (value 1) enables watching for 807 Set the event mask to watch. The only allowed values are
513 read data, Bit #1 (value 2) enables watching for write data. 808 "urxvt::EVENT_READ" and "urxvt::EVENT_WRITE", which might be
809 ORed together, or "urxvt::EVENT_NONE".
514 810
515 $iow = $iow->start 811 $iow = $iow->start
516 Start watching for requested events on the given handle. 812 Start watching for requested events on the given handle.
517 813
518 $iow = $iow->stop 814 $iow = $iow->stop
519 Stop watching for events on the given filehandle. 815 Stop watching for events on the given filehandle.
520 816
521ENVIRONMENT 817ENVIRONMENT
522 URXVT_PERL_VERBOSITY 818 URXVT_PERL_VERBOSITY
523 This variable controls the verbosity level of the perl extension. Higher 819 This variable controls the verbosity level of the perl extension.
524 numbers indicate more verbose output. 820 Higher numbers indicate more verbose output.
525 821
526 =0 - only fatal messages 822 == 0 - fatal messages
527 =3 - script loading and management 823 >= 3 - script loading and management
528 =10 - all events received 824 >=10 - all events received
529 825
530AUTHOR 826AUTHOR
531 Marc Lehmann <pcg@goof.com> 827 Marc Lehmann <pcg@goof.com>
532 http://software.schmorp.de/pkg/rxvt-unicode 828 http://software.schmorp.de/pkg/rxvt-unicode
533 829

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines