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Revision 1.25 by root, Tue Jan 3 21:08:39 2006 UTC vs.
Revision 1.257 by root, Thu Jul 13 10:31:27 2017 UTC

1=encoding utf8 1=encoding utf8
2 2
3=head1 NAME 3=head1 NAME
4 4
5@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter 5urxvtperl - rxvt-unicode's embedded perl interpreter
6 6
7=head1 SYNOPSIS 7=head1 SYNOPSIS
8 8
9 # create a file grab_test in $HOME: 9 # create a file grab_test in $HOME:
10 10
11 sub on_sel_grab { 11 sub on_sel_grab {
12 warn "you selected ", $_[0]->selection; 12 warn "you selected ", $_[0]->selection;
13 () 13 ()
14 } 14 }
15 15
16 # start a @@RXVT_NAME@@ using it: 16 # start a urxvt using it:
17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 urxvt --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Everytime a terminal object gets created, scripts specified via the 22Every time a terminal object gets created, extension scripts specified via
23C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in urxvtd, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31You can disable the embedded perl interpreter by setting both "perl-ext"
32and "perl-ext-common" resources to the empty string.
32 33
33This section describes the extensiosn delivered with this version. You can 34=head1 PREPACKAGED EXTENSIONS
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 35
36A number of extensions are delivered with this release. You can find them
37in F<< <libdir>/urxvt/perl/ >>, and the documentation can be viewed using
38F<< man urxvt-<EXTENSIONNAME> >>.
35 39
36You can activate them like this: 40You can activate them like this:
37 41
38 @@RXVT_NAME@@ -pe <extensionname> 42 urxvt -pe <extensionname>
39 43
40=over 4 44Or by adding them to the resource for extensions loaded by default:
41 45
42=item selection 46 URxvt.perl-ext-common: default,selection-autotransform
43 47
44Intelligent selection. This etxension tries to be more intelligent when the user 48Extensions may add additional resources and C<actions>, i.e., methods
45extends selections (double-click). 49which can be bound to a key and invoked by the user. An extension can
50define the resources it support using so called META comments,
51described below. Similarly to builtin resources, extension resources
52can also be specified on the command line as long options (with C<.>
53replaced by C<->), in which case the corresponding extension is loaded
54automatically. For this to work the extension B<must> define META
55comments for its resources.
46 56
47It also offers the following bindable event: 57=head1 API DOCUMENTATION
48
49=over 4
50
51=item rot13
52
53Rot-13 the selection when activated. Used via keyboard trigger:
54
55 URxvt.keysym.C-M-r: perl:selection:rot13
56
57=back
58
59=item digital-clock
60
61Displays a digital clock using the built-in overlay.
62
63=item example-refresh-hooks
64
65Displays a very simple digital clock in the upper right corner of the
66window. Illustrates overwriting the refresh callbacks to create your own
67overlays or changes.
68
69=back
70 58
71=head2 General API Considerations 59=head2 General API Considerations
72 60
73All objects (such as terminals, time watchers etc.) are typical 61All objects (such as terminals, time watchers etc.) are typical
74reference-to-hash objects. The hash can be used to store anything you 62reference-to-hash objects. The hash can be used to store anything you
79When objects are destroyed on the C++ side, the perl object hashes are 67When objects are destroyed on the C++ side, the perl object hashes are
80emptied, so its best to store related objects such as time watchers and 68emptied, so its best to store related objects such as time watchers and
81the like inside the terminal object so they get destroyed as soon as the 69the like inside the terminal object so they get destroyed as soon as the
82terminal is destroyed. 70terminal is destroyed.
83 71
72Argument names also often indicate the type of a parameter. Here are some
73hints on what they mean:
74
75=over 4
76
77=item $text
78
79Rxvt-unicode's special way of encoding text, where one "unicode" character
80always represents one screen cell. See L<ROW_t> for a discussion of this format.
81
82=item $string
83
84A perl text string, with an emphasis on I<text>. It can store all unicode
85characters and is to be distinguished with text encoded in a specific
86encoding (often locale-specific) and binary data.
87
88=item $octets
89
90Either binary data or - more common - a text string encoded in a
91locale-specific way.
92
93=item $keysym
94
95an integer that is a valid X11 keysym code. You can convert a string
96into a keysym and viceversa by using C<XStringToKeysym> and
97C<XKeysymToString>.
98
99=back
100
101=head2 Extension Objects
102
103Every perl extension is a perl class. A separate perl object is created
104for each terminal, and each terminal has its own set of extension objects,
105which are passed as the first parameter to hooks. So extensions can use
106their C<$self> object without having to think about clashes with other
107extensions or other terminals, with the exception of methods and members
108that begin with an underscore character C<_>: these are reserved for
109internal use.
110
111Although it isn't a C<urxvt::term> object, you can call all methods of the
112C<urxvt::term> class on this object.
113
114Additional methods only supported for extension objects are described in
115the C<urxvt::extension> section below.
116
117=head2 META comments
118
119Rxvt-unicode recognizes special meta comments in extensions that define
120different types of metadata.
121
122Currently, it recognises only one such comment:
123
124=over 4
125
126=item #:META:RESOURCE:name:type:desc
127
128The RESOURCE comment defines a resource used by the extension, where
129C<name> is the resource name, C<type> is the resource type, C<boolean>
130or C<string>, and C<desc> is the resource description.
131
132=back
133
84=head2 Hooks 134=head2 Hooks
85 135
86The following subroutines can be declared in loaded scripts, and will be 136The following subroutines can be declared in extension files, and will be
87called whenever the relevant event happens. 137called whenever the relevant event happens.
88 138
89The first argument passed to them is an object private to each terminal 139The first argument passed to them is an extension object as described in
90and extension package. You can call all C<urxvt::term> methods on it, but 140the in the C<Extension Objects> section.
91its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
92object that is shared between all packages is stored in the C<term>
93member.
94 141
95All of them must return a boolean value. If it is true, then the event 142B<All> of these hooks must return a boolean value. If any of the called
96counts as being I<consumed>, and the invocation of other hooks is skipped, 143hooks returns true, then the event counts as being I<consumed>, and the
97and the relevant action might not be carried out by the C++ code. 144relevant action might not be carried out by the C++ code.
98 145
99When in doubt, return a false value (preferably C<()>). 146I<< When in doubt, return a false value (preferably C<()>). >>
100 147
101=over 4 148=over 4
102 149
103=item on_init $term 150=item on_init $term
104 151
105Called after a new terminal object has been initialized, but before 152Called after a new terminal object has been initialized, but before
106windows are created or the command gets run. 153windows are created or the command gets run. Most methods are unsafe to
154call or deliver senseless data, as terminal size and other characteristics
155have not yet been determined. You can safely query and change resources
156and options, though. For many purposes the C<on_start> hook is a better
157place.
158
159=item on_start $term
160
161Called at the very end of initialisation of a new terminal, just before
162trying to map (display) the toplevel and returning to the main loop.
163
164=item on_destroy $term
165
166Called whenever something tries to destroy terminal, when the terminal is
167still fully functional (not for long, though).
107 168
108=item on_reset $term 169=item on_reset $term
109 170
110Called after the screen is "reset" for any reason, such as resizing or 171Called after the screen is "reset" for any reason, such as resizing or
111control sequences. Here is where you can react on changes to size-related 172control sequences. Here is where you can react on changes to size-related
112variables. 173variables.
113 174
114=item on_start $term 175=item on_child_start $term, $pid
115 176
116Called at the very end of initialisation of a new terminal, just before 177Called just after the child process has been C<fork>ed.
117returning to the mainloop. 178
179=item on_child_exit $term, $status
180
181Called just after the child process has exited. C<$status> is the status
182from C<waitpid>.
118 183
119=item on_sel_make $term, $eventtime 184=item on_sel_make $term, $eventtime
120 185
121Called whenever a selection has been made by the user, but before the 186Called whenever a selection has been made by the user, but before the
122selection text is copied, so changes to the beginning, end or type of the 187selection text is copied, so changes to the beginning, end or type of the
129 194
130Called whenever a selection has been copied, but before the selection is 195Called whenever a selection has been copied, but before the selection is
131requested from the server. The selection text can be queried and changed 196requested from the server. The selection text can be queried and changed
132by calling C<< $term->selection >>. 197by calling C<< $term->selection >>.
133 198
134Returning a true value aborts selection grabbing. It will still be hilighted. 199Returning a true value aborts selection grabbing. It will still be highlighted.
135 200
136=item on_sel_extend $term 201=item on_sel_extend $term
137 202
138Called whenever the user tries to extend the selection (e.g. with a double 203Called whenever the user tries to extend the selection (e.g. with a double
139click) and is either supposed to return false (normal operation), or 204click) and is either supposed to return false (normal operation), or
140should extend the selection itelf and return true to suppress the built-in 205should extend the selection itself and return true to suppress the built-in
141processing. 206processing. This can happen multiple times, as long as the callback
207returns true, it will be called on every further click by the user and is
208supposed to enlarge the selection more and more, if possible.
142 209
143See the F<selection> example extension. 210See the F<selection> example extension.
144 211
145=item on_focus_in $term
146
147Called whenever the window gets the keyboard focus, before urxvt does
148focus in processing.
149
150=item on_focus_out $term
151
152Called wheneever the window loses keyboard focus, before urxvt does focus
153out processing.
154
155=item on_view_change $term, $offset 212=item on_view_change $term, $offset
156 213
157Called whenever the view offset changes, i..e the user or program 214Called whenever the view offset changes, i.e. the user or program
158scrolls. Offset C<0> means display the normal terminal, positive values 215scrolls. Offset C<0> means display the normal terminal, positive values
159show this many lines of scrollback. 216show this many lines of scrollback.
160 217
161=item on_scroll_back $term, $lines, $saved 218=item on_scroll_back $term, $lines, $saved
162 219
166 223
167It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 224It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
168$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 225$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
169number of lines that will be in the scrollback buffer. 226number of lines that will be in the scrollback buffer.
170 227
171=item on_tty_activity $term *NYI* 228=item on_osc_seq $term, $op, $args, $resp
172 229
173Called whenever the program(s) running in the urxvt window send output. 230Called on every OSC sequence and can be used to suppress it or modify its
231behaviour. The default should be to return an empty list. A true value
232suppresses execution of the request completely. Make sure you don't get
233confused by recursive invocations when you output an OSC sequence within
234this callback.
235
236C<on_osc_seq_perl> should be used for new behaviour.
237
238=item on_osc_seq_perl $term, $args, $resp
239
240Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
241operating system command) is processed. Cursor position and other state
242information is up-to-date when this happens. For interoperability, the
243string should start with the extension name (sans -osc) and a semicolon,
244to distinguish it from commands for other extensions, and this might be
245enforced in the future.
246
247For example, C<overlay-osc> uses this:
248
249 sub on_osc_seq_perl {
250 my ($self, $osc, $resp) = @_;
251
252 return unless $osc =~ s/^overlay;//;
253
254 ... process remaining $osc string
255 }
256
257Be careful not ever to trust (in a security sense) the data you receive,
258as its source can not easily be controlled (e-mail content, messages from
259other users on the same system etc.).
260
261For responses, C<$resp> contains the end-of-args separator used by the
262sender.
263
264=item on_add_lines $term, $string
265
266Called whenever text is about to be output, with the text as argument. You
267can filter/change and output the text yourself by returning a true value
268and calling C<< $term->scr_add_lines >> yourself. Please note that this
269might be very slow, however, as your hook is called for B<all> text being
270output.
271
272=item on_tt_write $term, $octets
273
274Called whenever some data is written to the tty/pty and can be used to
275suppress or filter tty input.
276
277=item on_tt_paste $term, $octets
278
279Called whenever text is about to be pasted, with the text as argument. You
280can filter/change and paste the text yourself by returning a true value
281and calling C<< $term->tt_paste >> yourself. C<$octets> is
282locale-encoded.
283
284=item on_line_update $term, $row
285
286Called whenever a line was updated or changed. Can be used to filter
287screen output (e.g. underline urls or other useless stuff). Only lines
288that are being shown will be filtered, and, due to performance reasons,
289not always immediately.
290
291The row number is always the topmost row of the line if the line spans
292multiple rows.
293
294Please note that, if you change the line, then the hook might get called
295later with the already-modified line (e.g. if unrelated parts change), so
296you cannot just toggle rendition bits, but only set them.
174 297
175=item on_refresh_begin $term 298=item on_refresh_begin $term
176 299
177Called just before the screen gets redrawn. Can be used for overlay 300Called just before the screen gets redrawn. Can be used for overlay or
178or similar effects by modify terminal contents in refresh_begin, and 301similar effects by modifying the terminal contents in refresh_begin, and
179restoring them in refresh_end. The built-in overlay and selection display 302restoring them in refresh_end. The built-in overlay and selection display
180code is run after this hook, and takes precedence. 303code is run after this hook, and takes precedence.
181 304
182=item on_refresh_end $term 305=item on_refresh_end $term
183 306
184Called just after the screen gets redrawn. See C<on_refresh_begin>. 307Called just after the screen gets redrawn. See C<on_refresh_begin>.
185 308
309=item on_action $term, $string
310
311Called whenever an action is invoked for the corresponding extension
312(e.g. via a C<extension:string> builtin action bound to a key, see
313description of the B<keysym> resource in the urxvt(1) manpage). The
314event is simply the action string. Note that an action event is always
315associated to a single extension.
316
186=item on_keyboard_command $term, $string 317=item on_user_command $term, $string *DEPRECATED*
187 318
188Called whenever the user presses a key combination that has a 319Called whenever a user-configured event is being activated (e.g. via
189C<perl:string> action bound to it (see description of the B<keysym> 320a C<perl:string> action bound to a key, see description of the B<keysym>
190resource in the @@RXVT_NAME@@(1) manpage). 321resource in the urxvt(1) manpage).
322
323The event is simply the action string. This interface is going away in
324preference to the C<on_action> hook.
325
326=item on_resize_all_windows $term, $new_width, $new_height
327
328Called just after the new window size has been calculated, but before
329windows are actually being resized or hints are being set. If this hook
330returns a true value, setting of the window hints is being skipped.
331
332=item on_x_event $term, $event
333
334Called on every X event received on the vt window (and possibly other
335windows). Should only be used as a last resort. Most event structure
336members are not passed.
337
338=item on_root_event $term, $event
339
340Like C<on_x_event>, but is called for events on the root window.
341
342=item on_focus_in $term
343
344Called whenever the window gets the keyboard focus, before rxvt-unicode
345does focus in processing.
346
347=item on_focus_out $term
348
349Called whenever the window loses keyboard focus, before rxvt-unicode does
350focus out processing.
351
352=item on_configure_notify $term, $event
353
354=item on_property_notify $term, $event
355
356=item on_key_press $term, $event, $keysym, $octets
357
358=item on_key_release $term, $event, $keysym
359
360=item on_button_press $term, $event
361
362=item on_button_release $term, $event
363
364=item on_motion_notify $term, $event
365
366=item on_map_notify $term, $event
367
368=item on_unmap_notify $term, $event
369
370Called whenever the corresponding X event is received for the terminal. If
371the hook returns true, then the event will be ignored by rxvt-unicode.
372
373The event is a hash with most values as named by Xlib (see the XEvent
374manpage), with the additional members C<row> and C<col>, which are the
375(real, not screen-based) row and column under the mouse cursor.
376
377C<on_key_press> additionally receives the string rxvt-unicode would
378output, if any, in locale-specific encoding.
379
380=item on_client_message $term, $event
381
382=item on_wm_protocols $term, $event
383
384=item on_wm_delete_window $term, $event
385
386Called when various types of ClientMessage events are received (all with
387format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
388
389=item on_bell $term
390
391Called on receipt of a bell character.
191 392
192=back 393=back
193 394
395=cut
396
397package urxvt;
398
399use utf8;
400use strict 'vars';
401use Carp ();
402use Scalar::Util ();
403use List::Util ();
404
405our $VERSION = 1;
406our $TERM;
407our @TERM_INIT; # should go, prevents async I/O etc.
408our @TERM_EXT; # should go, prevents async I/O etc.
409our @HOOKNAME;
410our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
411our %OPTION;
412
413our $LIBDIR;
414our $RESNAME;
415our $RESCLASS;
416our $RXVTNAME;
417
418our $NOCHAR = chr 0xffff;
419
194=head2 Variables in the C<urxvt> Package 420=head2 Variables in the C<urxvt> Package
195 421
196=over 4 422=over 4
197 423
424=item $urxvt::LIBDIR
425
426The rxvt-unicode library directory, where, among other things, the perl
427modules and scripts are stored.
428
429=item $urxvt::RESCLASS, $urxvt::RESCLASS
430
431The resource class and name rxvt-unicode uses to look up X resources.
432
433=item $urxvt::RXVTNAME
434
435The basename of the installed binaries, usually C<urxvt>.
436
198=item $urxvt::TERM 437=item $urxvt::TERM
199 438
200The current terminal. Whenever a callback/Hook is bein executed, this 439The current terminal. This variable stores the current C<urxvt::term>
201variable stores the current C<urxvt::term> object. 440object, whenever a callback/hook is executing.
441
442=item @urxvt::TERM_INIT
443
444All code references in this array will be called as methods of the next newly
445created C<urxvt::term> object (during the C<on_init> phase). The array
446gets cleared before the code references that were in it are being executed,
447so references can push themselves onto it again if they so desire.
448
449This complements to the perl-eval command line option, but gets executed
450first.
451
452=item @urxvt::TERM_EXT
453
454Works similar to C<@TERM_INIT>, but contains perl package/class names, which
455get registered as normal extensions after calling the hooks in C<@TERM_INIT>
456but before other extensions. Gets cleared just like C<@TERM_INIT>.
202 457
203=back 458=back
204 459
205=head2 Functions in the C<urxvt> Package 460=head2 Functions in the C<urxvt> Package
206 461
207=over 4 462=over 4
208 463
209=item urxvt::fatal $errormessage 464=item urxvt::fatal $errormessage
210 465
211Fatally aborts execution with the given error message. Avoid at all 466Fatally aborts execution with the given error message (which should
212costs! The only time this is acceptable is when the terminal process 467include a trailing newline). Avoid at all costs! The only time this
213starts up. 468is acceptable (and useful) is in the init hook, where it prevents the
469terminal from starting up.
214 470
215=item urxvt::warn $string 471=item urxvt::warn $string
216 472
217Calls C<rxvt_warn> with the given string which should not include a 473Calls C<rxvt_warn> with the given string which should include a trailing
218newline. The module also overwrites the C<warn> builtin with a function 474newline. The module also overwrites the C<warn> builtin with a function
219that calls this function. 475that calls this function.
220 476
221Using this function has the advantage that its output ends up in the 477Using this function has the advantage that its output ends up in the
222correct place, e.g. on stderr of the connecting urxvtc client. 478correct place, e.g. on stderr of the connecting urxvtc client.
223 479
480Messages have a size limit of 1023 bytes currently.
481
482=item @terms = urxvt::termlist
483
484Returns all urxvt::term objects that exist in this process, regardless of
485whether they are started, being destroyed etc., so be careful. Only term
486objects that have perl extensions attached will be returned (because there
487is no urxvt::term object associated with others).
488
224=item $time = urxvt::NOW 489=item $time = urxvt::NOW
225 490
226Returns the "current time" (as per the event loop). 491Returns the "current time" (as per the event loop).
492
493=item urxvt::CurrentTime
494
495=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
496Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
497Button4Mask, Button5Mask, AnyModifier
498
499=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
500ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
501PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
502Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
503KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
504ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
505FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
506
507=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
508EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
509GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
510UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
511ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
512CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
513SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
514
515Various constants for use in X calls and event processing.
516
517=item urxvt::PrivMode_132, PrivMode_132OK, PrivMode_rVideo, PrivMode_relOrigin,
518PrivMode_Screen, PrivMode_Autowrap, PrivMode_aplCUR, PrivMode_aplKP,
519PrivMode_HaveBackSpace, PrivMode_BackSpace, PrivMode_ShiftKeys,
520PrivMode_VisibleCursor, PrivMode_MouseX10, PrivMode_MouseX11,
521PrivMode_scrollBar, PrivMode_TtyOutputInh, PrivMode_Keypress,
522PrivMode_smoothScroll, PrivMode_vt52, PrivMode_LFNL, PrivMode_MouseBtnEvent,
523PrivMode_MouseAnyEvent, PrivMode_BracketPaste, PrivMode_ExtModeMouse,
524PrivMode_ExtMouseRight, PrivMode_BlinkingCursor, PrivMode_mouse_report,
525PrivMode_Default
526
527Constants for checking DEC private modes.
227 528
228=back 529=back
229 530
230=head2 RENDITION 531=head2 RENDITION
231 532
246 547
247=item $rend = urxvt::OVERLAY_RSTYLE 548=item $rend = urxvt::OVERLAY_RSTYLE
248 549
249Return the rendition mask used for overlays by default. 550Return the rendition mask used for overlays by default.
250 551
251=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline 552=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
553urxvt::RS_RVid, urxvt::RS_Uline
252 554
253Return the bit that enabled bold, italic, blink, reverse-video and 555Return the bit that enabled bold, italic, blink, reverse-video and
254underline, respectively. To enable such a style, just logically OR it into 556underline, respectively. To enable such a style, just logically OR it into
255the bitset. 557the bitset.
256 558
258 560
259=item $background = urxvt::GET_BASEBG $rend 561=item $background = urxvt::GET_BASEBG $rend
260 562
261Return the foreground/background colour index, respectively. 563Return the foreground/background colour index, respectively.
262 564
263=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 565=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
264 566
265=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 567=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
568
569=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
266 570
267Replace the foreground/background colour in the rendition mask with the 571Replace the foreground/background colour in the rendition mask with the
268specified one. 572specified one.
269 573
270=item $value = urxvt::GET_CUSTOM ($rend) 574=item $value = urxvt::GET_CUSTOM $rend
271 575
272Return the "custom" value: Every rendition has 5 bits for use by 576Return the "custom" value: Every rendition has 5 bits for use by
273extensions. They can be set and changed as you like and are initially 577extensions. They can be set and changed as you like and are initially
274zero. 578zero.
275 579
276=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 580=item $rend = urxvt::SET_CUSTOM $rend, $new_value
277 581
278Change the custom value. 582Change the custom value.
279 583
280=back 584=back
281 585
282=cut 586=cut
283 587
284package urxvt;
285
286use strict;
287use Scalar::Util ();
288
289our $TERM;
290our @HOOKNAME;
291our $LIBDIR;
292
293BEGIN { 588BEGIN {
294 urxvt->bootstrap;
295
296 # overwrite perl's warn 589 # overwrite perl's warn
297 *CORE::GLOBAL::warn = sub { 590 *CORE::GLOBAL::warn = sub {
298 my $msg = join "", @_; 591 my $msg = join "", @_;
299 $msg .= "\n" 592 $msg .= "\n"
300 unless $msg =~ /\n$/; 593 unless $msg =~ /\n$/;
301 urxvt::warn ($msg); 594 urxvt::warn ($msg);
302 }; 595 };
303} 596}
304 597
305my @hook_count; 598no warnings 'utf8';
599
600sub parse_resource {
601 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
602
603 $term->scan_extensions;
604
605 my $r = $term->{meta}{resource};
606 keys %$r; # reset iterator
607 while (my ($k, $v) = each %$r) {
608 my $pattern = $k;
609 $pattern =~ y/./-/ if $isarg;
610 my $prefix = $name;
611 my $suffix;
612 if ($pattern =~ /\-$/) {
613 $prefix = substr $name, 0, length $pattern;
614 $suffix = substr $name, length $pattern;
615 }
616 if ($pattern eq $prefix) {
617 $name = "$urxvt::RESCLASS.$k$suffix";
618
619 push @{ $term->{perl_ext_3} }, $v->[0];
620
621 return 1 unless $isarg;
622
623 if ($v->[1] eq "boolean") {
624 $term->put_option_db ($name, $flag ? "true" : "false");
625 return 1;
626 } else {
627 $term->put_option_db ($name, $value);
628 return 1 + 2;
629 }
630 }
631 }
632
633 0
634}
635
636sub usage {
637 my ($term, $usage_type) = @_;
638
639 $term->scan_extensions;
640
641 my $r = $term->{meta}{resource};
642
643 for my $pattern (sort keys %$r) {
644 my ($ext, $type, $desc) = @{ $r->{$pattern} };
645
646 $desc .= " (-pe $ext)";
647
648 if ($usage_type == 1) {
649 $pattern =~ y/./-/;
650 $pattern =~ s/-$/-.../g;
651
652 if ($type eq "boolean") {
653 urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
654 } else {
655 urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
656 }
657 } else {
658 $pattern =~ s/\.$/.*/g;
659 urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
660 }
661 }
662}
663
306my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 664my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
307 665
308sub verbose { 666sub verbose {
309 my ($level, $msg) = @_; 667 my ($level, $msg) = @_;
310 warn "$msg\n" if $level <= $verbosity; 668 warn "$msg\n" if $level <= $verbosity;
311} 669}
312 670
313# find on_xxx subs in the package and register them 671my %extension_pkg;
314# as hooks
315sub register_package($) {
316 my ($pkg) = @_;
317
318 for my $htype (0.. $#HOOKNAME) {
319 my $name = $HOOKNAME[$htype];
320
321 my $ref = $pkg->can ("on_" . lc $name)
322 or next;
323
324 $TERM->{_hook}[$htype]{$pkg} = $ref;
325 $hook_count[$htype]++
326 or set_should_invoke $htype, 1;
327 }
328}
329
330my $script_pkg = "script0000";
331my %script_pkg;
332 672
333# load a single script into its own package, once only 673# load a single script into its own package, once only
334sub script_package($) { 674sub extension_package($) {
335 my ($path) = @_; 675 my ($path) = @_;
336 676
337 $script_pkg{$path} ||= do { 677 $extension_pkg{$path} ||= do {
338 my $pkg = "urxvt::" . ($script_pkg++); 678 $path =~ /([^\/\\]+)$/;
679 my $pkg = $1;
680 $pkg =~ s/[^[:word:]]/_/g;
681 $pkg = "urxvt::ext::$pkg";
339 682
340 verbose 3, "loading script '$path' into package '$pkg'"; 683 verbose 3, "loading extension '$path' into package '$pkg'";
684
685 (${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
341 686
342 open my $fh, "<:raw", $path 687 open my $fh, "<:raw", $path
343 or die "$path: $!"; 688 or die "$path: $!";
344 689
345 my $source = "package $pkg; use strict; use utf8;\n" 690 my $source =
691 "package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
346 . "#line 1 \"$path\"\n{\n" 692 . "#line 1 \"$path\"\n{\n"
347 . (do { local $/; <$fh> }) 693 . (do { local $/; <$fh> })
348 . "\n};\n1"; 694 . "\n};\n1";
349 695
696 eval $source
350 eval $source or die "$path: $@"; 697 or die "$path: $@";
351 698
352 $pkg 699 $pkg
353 } 700 }
354} 701}
702
703our $retval; # return value for urxvt
355 704
356# called by the rxvt core 705# called by the rxvt core
357sub invoke { 706sub invoke {
358 local $TERM = shift; 707 local $TERM = shift;
359 my $htype = shift; 708 my $htype = shift;
360 709
361 if ($htype == 0) { # INIT 710 if ($htype == HOOK_INIT) {
362 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 711 my @dirs = $TERM->perl_libdirs;
363 712
364 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 713 $TERM->scan_extensions;
714
715 my %ext_arg;
716
717 {
718 my @init = @TERM_INIT;
719 @TERM_INIT = ();
720 $_->($TERM) for @init;
721 my @pkg = @TERM_EXT;
722 @TERM_EXT = ();
723 $TERM->register_package ($_) for @pkg;
724 }
725
726 for (
727 (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
728 @{ delete $TERM->{perl_ext_3} }
729 ) {
730 if ($_ eq "default") {
731
732 $ext_arg{$_} = []
733 for qw(selection option-popup selection-popup readline searchable-scrollback);
734
735 for ($TERM->_keysym_resources) {
736 next if /^(?:string|command|builtin|builtin-string|perl)/;
737 next unless /^([A-Za-z0-9_\-]+):/;
738
739 my $ext = $1;
740
741 $ext_arg{$ext} = [];
742 }
743
744 } elsif (/^-(.*)$/) {
745 delete $ext_arg{$1};
746
747 } elsif (/^([^<]+)<(.*)>$/) {
748 push @{ $ext_arg{$1} }, $2;
749
750 } else {
751 $ext_arg{$_} ||= [];
752 }
753 }
754
755 for my $ext (sort keys %ext_arg) {
365 my @files = grep -f $_, map "$_/$ext", @dirs; 756 my @files = grep -f $_, map "$_/$ext", @dirs;
366 757
367 if (@files) { 758 if (@files) {
368 register_package script_package $files[0]; 759 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
369 } else { 760 } else {
370 warn "perl extension '$ext' not found in perl library search path\n"; 761 warn "perl extension '$ext' not found in perl library search path\n";
371 } 762 }
372 } 763 }
373 764
374 } elsif ($htype == 1) { # DESTROY 765 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
766 warn $@ if $@;
767 }
768
769 $retval = undef;
770
375 if (my $hook = $TERM->{_hook}) { 771 if (my $cb = $TERM->{_hook}[$htype]) {
376 for my $htype (0..$#$hook) { 772 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
377 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 773 if $verbosity >= 10;
378 or set_should_invoke $htype, 0; 774
775 if ($htype == HOOK_ACTION) {
776 # this hook is only sent to the extension with the name
777 # matching the first arg
778 my $pkg = shift;
779 $pkg =~ y/-/_/;
780 $pkg = "urxvt::ext::$pkg";
781
782 $cb = $cb->{$pkg}
783 or return undef; #TODO: maybe warn user?
784
785 $cb = { $pkg => $cb };
786 }
787
788 for my $pkg (keys %$cb) {
789 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
790 $retval ||= $retval_;
791
792 if ($@) {
793 $TERM->ungrab; # better to lose the grab than the session
794 warn $@;
795 }
796 }
797
798 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
799 if $verbosity >= 11;
800 }
801
802 if ($htype == HOOK_DESTROY) {
803 # clear package objects
804 %$_ = () for values %{ $TERM->{_pkg} };
805
806 # clear package
807 %$TERM = ();
808 }
809
810 $retval
811}
812
813sub SET_COLOR($$$) {
814 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
815}
816
817sub rend2mask {
818 no strict 'refs';
819 my ($str, $mask) = (@_, 0);
820 my %color = ( fg => undef, bg => undef );
821 my @failed;
822 for my $spec ( split /\s+/, $str ) {
823 if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
824 $color{lc($1)} = $2;
825 } else {
826 my $neg = $spec =~ s/^[-^]//;
827 unless ( exists &{"RS_$spec"} ) {
828 push @failed, $spec;
829 next;
830 }
831 my $cur = &{"RS_$spec"};
832 if ( $neg ) {
833 $mask &= ~$cur;
834 } else {
835 $mask |= $cur;
379 } 836 }
380 } 837 }
381 } 838 }
382 839 ($mask, @color{qw(fg bg)}, \@failed)
383 my $cb = $TERM->{_hook}[$htype]
384 or return;
385
386 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
387 if $verbosity >= 10;
388
389 keys %$cb;
390
391 while (my ($pkg, $cb) = each %$cb) {
392 return 1
393 if $cb->(
394 $TERM->{$pkg} ||= do {
395 my $proxy = bless { }, urxvt::term::proxy::;
396 Scalar::Util::weaken ($proxy->{term} = $TERM);
397 $proxy
398 },
399 @_,
400 );
401 }
402
403 0
404} 840}
405 841
406sub urxvt::term::proxy::AUTOLOAD { 842package urxvt::term::extension;
407 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 843
844=head2 The C<urxvt::term::extension> class
845
846Each extension attached to a terminal object is represented by
847a C<urxvt::term::extension> object.
848
849You can use these objects, which are passed to all callbacks to store any
850state related to the terminal and extension instance.
851
852The methods (And data members) documented below can be called on extension
853objects, in addition to call methods documented for the <urxvt::term>
854class.
855
856=over 4
857
858=item $urxvt_term = $self->{term}
859
860Returns the C<urxvt::term> object associated with this instance of the
861extension. This member I<must not> be changed in any way.
862
863=cut
864
865our $AUTOLOAD;
866
867sub AUTOLOAD {
868 $AUTOLOAD =~ /:([^:]+)$/
408 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 869 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
409 870
410 eval qq{ 871 eval qq{
411 sub $urxvt::term::proxy::AUTOLOAD { 872 sub $AUTOLOAD {
412 my \$proxy = shift; 873 my \$proxy = shift;
413 \$proxy->{term}->$1 (\@_) 874 \$proxy->{term}->$1 (\@_)
414 } 875 }
415 1 876 1
416 } or die "FATAL: unable to compile method forwarder: $@"; 877 } or die "FATAL: unable to compile method forwarder: $@";
417 878
418 goto &$urxvt::term::proxy::AUTOLOAD; 879 goto &$AUTOLOAD;
419} 880}
881
882sub DESTROY {
883 # nop
884}
885
886# urxvt::destroy_hook (basically a cheap Guard:: implementation)
887
888sub urxvt::destroy_hook::DESTROY {
889 ${$_[0]}->();
890}
891
892sub urxvt::destroy_hook(&) {
893 bless \shift, urxvt::destroy_hook::
894}
895
896=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
897
898Dynamically enable the given hooks (named without the C<on_> prefix) for
899this extension, replacing any hook previously installed via C<enable> in
900this extension.
901
902This is useful when you want to overwrite time-critical hooks only
903temporarily.
904
905To install additional callbacks for the same hook, you can use the C<on>
906method of the C<urxvt::term> class.
907
908=item $self->disable ($hook_name[, $hook_name..])
909
910Dynamically disable the given hooks.
911
912=cut
913
914sub enable {
915 my ($self, %hook) = @_;
916 my $pkg = $self->{_pkg};
917
918 while (my ($name, $cb) = each %hook) {
919 my $htype = $HOOKTYPE{uc $name};
920 defined $htype
921 or Carp::croak "unsupported hook type '$name'";
922
923 $self->set_should_invoke ($htype, +1)
924 unless exists $self->{term}{_hook}[$htype]{$pkg};
925
926 $self->{term}{_hook}[$htype]{$pkg} = $cb;
927 }
928}
929
930sub disable {
931 my ($self, @hook) = @_;
932 my $pkg = $self->{_pkg};
933
934 for my $name (@hook) {
935 my $htype = $HOOKTYPE{uc $name};
936 defined $htype
937 or Carp::croak "unsupported hook type '$name'";
938
939 $self->set_should_invoke ($htype, -1)
940 if delete $self->{term}{_hook}[$htype]{$pkg};
941 }
942}
943
944=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
945
946Similar to the C<enable> enable, but installs additional callbacks for
947the given hook(s) (that is, it doesn't replace existing callbacks), and
948returns a guard object. When the guard object is destroyed the callbacks
949are disabled again.
950
951=cut
952
953sub urxvt::extension::on_disable::DESTROY {
954 my $disable = shift;
955
956 my $term = delete $disable->{""};
957
958 while (my ($htype, $id) = each %$disable) {
959 delete $term->{_hook}[$htype]{$id};
960 $term->set_should_invoke ($htype, -1);
961 }
962}
963
964sub on {
965 my ($self, %hook) = @_;
966
967 my $term = $self->{term};
968
969 my %disable = ( "" => $term );
970
971 while (my ($name, $cb) = each %hook) {
972 my $htype = $HOOKTYPE{uc $name};
973 defined $htype
974 or Carp::croak "unsupported hook type '$name'";
975
976 $term->set_should_invoke ($htype, +1);
977 $term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
978 = sub { shift; $cb->($self, @_) }; # very ugly indeed
979 }
980
981 bless \%disable, "urxvt::extension::on_disable"
982}
983
984=item $self->bind_action ($hotkey, $action)
985
986=item $self->x_resource ($pattern)
987
988=item $self->x_resource_boolean ($pattern)
989
990These methods support an additional C<%> prefix for C<$action> or
991C<$pattern> when called on an extension object, compared to the
992C<urxvt::term> methods of the same name - see the description of these
993methods in the C<urxvt::term> class for details.
994
995=cut
996
997sub bind_action {
998 my ($self, $hotkey, $action) = @_;
999 $action =~ s/^%:/$_[0]{_name}:/;
1000 $self->{term}->bind_action ($hotkey, $action)
1001}
1002
1003sub x_resource {
1004 my ($self, $name) = @_;
1005 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
1006 $self->{term}->x_resource ($name)
1007}
1008
1009sub x_resource_boolean {
1010 my ($self, $name) = @_;
1011 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
1012 $self->{term}->x_resource_boolean ($name)
1013}
1014
1015=back
1016
1017=cut
1018
1019package urxvt::anyevent;
1020
1021=head2 The C<urxvt::anyevent> Class
1022
1023The sole purpose of this class is to deliver an interface to the
1024C<AnyEvent> module - any module using it will work inside urxvt without
1025further programming. The only exception is that you cannot wait on
1026condition variables, but non-blocking condvar use is ok.
1027
1028In practical terms this means is that you cannot use blocking APIs, but
1029the non-blocking variant should work.
1030
1031=cut
1032
1033our $VERSION = '5.23';
1034
1035$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
1036push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
1037
1038sub timer {
1039 my ($class, %arg) = @_;
1040
1041 my $cb = $arg{cb};
1042
1043 urxvt::timer
1044 ->new
1045 ->after ($arg{after}, $arg{interval})
1046 ->cb ($arg{interval} ? $cb : sub {
1047 $_[0]->stop; # need to cancel manually
1048 $cb->();
1049 })
1050}
1051
1052sub io {
1053 my ($class, %arg) = @_;
1054
1055 my $cb = $arg{cb};
1056 my $fd = fileno $arg{fh};
1057 defined $fd or $fd = $arg{fh};
1058
1059 bless [$arg{fh}, urxvt::iow
1060 ->new
1061 ->fd ($fd)
1062 ->events (($arg{poll} =~ /r/ ? 1 : 0)
1063 | ($arg{poll} =~ /w/ ? 2 : 0))
1064 ->start
1065 ->cb ($cb)
1066 ], urxvt::anyevent::
1067}
1068
1069sub idle {
1070 my ($class, %arg) = @_;
1071
1072 my $cb = $arg{cb};
1073
1074 urxvt::iw
1075 ->new
1076 ->start
1077 ->cb ($cb)
1078}
1079
1080sub child {
1081 my ($class, %arg) = @_;
1082
1083 my $cb = $arg{cb};
1084
1085 urxvt::pw
1086 ->new
1087 ->start ($arg{pid})
1088 ->cb (sub {
1089 $_[0]->stop; # need to cancel manually
1090 $cb->($_[0]->rpid, $_[0]->rstatus);
1091 })
1092}
1093
1094sub DESTROY {
1095 $_[0][1]->stop;
1096}
1097
1098# only needed for AnyEvent < 6 compatibility
1099sub one_event {
1100 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
1101}
1102
1103package urxvt::term;
420 1104
421=head2 The C<urxvt::term> Class 1105=head2 The C<urxvt::term> Class
422 1106
423=over 4 1107=over 4
1108
1109=cut
1110
1111# find on_xxx subs in the package and register them
1112# as hooks
1113sub register_package {
1114 my ($self, $pkg, $argv) = @_;
1115
1116 no strict 'refs';
1117
1118 urxvt::verbose 6, "register package $pkg to $self";
1119
1120 @{"$pkg\::ISA"} = urxvt::term::extension::;
1121
1122 my $proxy = bless {
1123 _pkg => $pkg,
1124 _name => ${"$pkg\::_NAME"}, # hackish
1125 argv => $argv,
1126 }, $pkg;
1127 Scalar::Util::weaken ($proxy->{term} = $self);
1128
1129 $self->{_pkg}{$pkg} = $proxy;
1130
1131 for my $name (@HOOKNAME) {
1132 if (my $ref = $pkg->can ("on_" . lc $name)) {
1133 $proxy->enable ($name => $ref);
1134 }
1135 }
1136}
1137
1138sub perl_libdirs {
1139 map { split /:/ }
1140 $_[0]->resource ("perl_lib"),
1141 $ENV{URXVT_PERL_LIB},
1142 "$ENV{HOME}/.urxvt/ext",
1143 "$LIBDIR/perl"
1144}
1145
1146# scan for available extensions and collect their metadata
1147sub scan_extensions {
1148 my ($self) = @_;
1149
1150 return if exists $self->{meta};
1151
1152 my @urxvtdirs = perl_libdirs $self;
1153# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
1154
1155 $self->{meta} = \my %meta;
1156
1157 # first gather extensions
1158
1159 my $gather = sub {
1160 my ($dir, $core) = @_;
1161
1162 opendir my $fh, $dir
1163 or return;
1164
1165 for my $ext (readdir $fh) {
1166 $ext !~ /^\./
1167 or next;
1168
1169 open my $fh, "<", "$dir/$ext"
1170 or next;
1171
1172 -f $fh
1173 or next;
1174
1175 $ext =~ s/\.uext$// or $core
1176 or next;
1177
1178 my %ext = (dir => $dir);
1179
1180 while (<$fh>) {
1181 if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
1182 my ($pattern, $type, $desc) = split /:/, $1;
1183 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1184 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1185 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1186 } else {
1187 $ext{resource}{$pattern} = [$ext, $type, $desc];
1188 }
1189 } elsif (/^\s*(?:#|$)/) {
1190 # skip other comments and empty lines
1191 } else {
1192 last; # stop parsing on first non-empty non-comment line
1193 }
1194 }
1195
1196 $meta{ext}{$ext} = \%ext;
1197 }
1198 };
1199
1200# $gather->($_, 0) for @cpandirs;
1201 $gather->($_, 1) for @urxvtdirs;
1202
1203 # and now merge resources
1204
1205 $meta{resource} = \my %resource;
1206
1207 while (my ($k, $v) = each %{ $meta{ext} }) {
1208 #TODO: should check for extensions overriding each other
1209 %resource = (%resource, %{ $v->{resource} });
1210 }
1211}
1212
1213=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1214
1215Creates a new terminal, very similar as if you had started it with system
1216C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1217hash which defines the environment of the new terminal.
1218
1219Croaks (and probably outputs an error message) if the new instance
1220couldn't be created. Returns C<undef> if the new instance didn't
1221initialise perl, and the terminal object otherwise. The C<init> and
1222C<start> hooks will be called before this call returns, and are free to
1223refer to global data (which is race free).
1224
1225=cut
1226
1227sub new {
1228 my ($class, $env, @args) = @_;
1229
1230 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1231 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1232
1233 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1234}
1235
1236=item $term->destroy
1237
1238Destroy the terminal object (close the window, free resources
1239etc.). Please note that urxvt will not exit as long as any event
1240watchers (timers, io watchers) are still active.
1241
1242=item $term->exec_async ($cmd[, @args])
1243
1244Works like the combination of the C<fork>/C<exec> builtins, which executes
1245("starts") programs in the background. This function takes care of setting
1246the user environment before exec'ing the command (e.g. C<PATH>) and should
1247be preferred over explicit calls to C<exec> or C<system>.
1248
1249Returns the pid of the subprocess or C<undef> on error.
1250
1251=cut
1252
1253sub exec_async {
1254 my $self = shift;
1255
1256 my $pid = fork;
1257
1258 return $pid
1259 if !defined $pid or $pid;
1260
1261 %ENV = %{ $self->env };
1262
1263 exec @_;
1264 urxvt::_exit 255;
1265}
1266
1267=item $isset = $term->option ($optval[, $set])
1268
1269Returns true if the option specified by C<$optval> is enabled, and
1270optionally change it. All option values are stored by name in the hash
1271C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
1272
1273Here is a likely non-exhaustive list of option names, please see the
1274source file F</src/optinc.h> to see the actual list:
1275
1276 borderLess buffered console cursorBlink cursorUnderline hold iconic
1277 insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
1278 mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
1279 pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
1280 scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
1281 secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
1282 urgentOnBell utmpInhibit visualBell
424 1283
425=item $value = $term->resource ($name[, $newval]) 1284=item $value = $term->resource ($name[, $newval])
426 1285
427Returns the current resource value associated with a given name and 1286Returns the current resource value associated with a given name and
428optionally sets a new value. Setting values is most useful in the C<init> 1287optionally sets a new value. Setting values is most useful in the C<init>
437likely change). 1296likely change).
438 1297
439Please note that resource strings will currently only be freed when the 1298Please note that resource strings will currently only be freed when the
440terminal is destroyed, so changing options frequently will eat memory. 1299terminal is destroyed, so changing options frequently will eat memory.
441 1300
442Here is a a likely non-exhaustive list of resource names, not all of which 1301Here is a likely non-exhaustive list of resource names, not all of which
443are supported in every build, please see the source to see the actual 1302are supported in every build, please see the source file F</src/rsinc.h>
444list: 1303to see the actual list:
445 1304
446 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1305 answerbackstring backgroundPixmap backspace_key blurradius
447 borderLess color cursorBlink cursorUnderline cutchars delete_key 1306 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
448 display_name embed ext_bwidth fade font geometry hold iconName 1307 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
449 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1308 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1309 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
450 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1310 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
451 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 1311 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
452 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1312 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
453 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1313 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
454 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1314 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
455 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1315 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
456 shade term_name title transparent transparent_all tripleclickwords 1316 secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
1317 term_name title transient_for transparent tripleclickwords urgentOnBell
457 utmpInhibit visualBell 1318 utmpInhibit visualBell
458 1319
459=cut 1320=cut
460 1321
461sub urxvt::term::resource($$;$) { 1322sub resource($$;$) {
462 my ($self, $name) = (shift, shift); 1323 my ($self, $name) = (shift, shift);
463 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1324 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
464 goto &urxvt::term::_resource; 1325 goto &urxvt::term::_resource
465} 1326}
1327
1328=item $value = $term->x_resource ($pattern)
1329
1330Returns the X-Resource for the given pattern, excluding the program or
1331class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1332same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1333resource with that pattern exists.
1334
1335Extensions that define extra resources also need to call this method
1336to access their values.
1337
1338If the method is called on an extension object (basically, from an
1339extension), then the special prefix C<%.> will be replaced by the name of
1340the extension and a dot, and the lone string C<%> will be replaced by the
1341extension name itself. This makes it possible to code extensions so you
1342can rename them and get a new set of resources without having to change
1343the actual code.
1344
1345This method should only be called during the C<on_start> hook, as there is
1346only one resource database per display, and later invocations might return
1347the wrong resources.
1348
1349=item $value = $term->x_resource_boolean ($pattern)
1350
1351Like C<x_resource>, above, but interprets the string value as a boolean
1352and returns C<1> for true values, C<0> for false values and C<undef> if
1353the resource or option isn't specified.
1354
1355You should always use this method to parse boolean resources.
1356
1357=cut
1358
1359sub x_resource_boolean {
1360 my $res = &x_resource;
1361
1362 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1363}
1364
1365=item $action = $term->lookup_keysym ($keysym, $state)
1366
1367Returns the action bound to key combination C<($keysym, $state)>,
1368if a binding for it exists, and C<undef> otherwise.
1369
1370=item $success = $term->bind_action ($key, $action)
1371
1372Adds a key binding exactly as specified via a C<keysym> resource. See the
1373C<keysym> resource in the urxvt(1) manpage.
1374
1375To add default bindings for actions, an extension should call C<<
1376->bind_action >> in its C<init> hook for every such binding. Doing it
1377in the C<init> hook allows users to override or remove the binding
1378again.
1379
1380Example: the C<searchable-scrollback> by default binds itself
1381on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1382$term->bind_action >>.
1383
1384 sub init {
1385 my ($self) = @_;
1386
1387 $self->bind_action ("M-s" => "%:start");
1388 }
1389
1390=item $rend = $term->rstyle ([$new_rstyle])
1391
1392Return and optionally change the current rendition. Text that is output by
1393the terminal application will use this style.
1394
1395=item ($row, $col) = $term->screen_cur ([$row, $col])
1396
1397Return the current coordinates of the text cursor position and optionally
1398set it (which is usually bad as applications don't expect that).
466 1399
467=item ($row, $col) = $term->selection_mark ([$row, $col]) 1400=item ($row, $col) = $term->selection_mark ([$row, $col])
468 1401
469=item ($row, $col) = $term->selection_beg ([$row, $col]) 1402=item ($row, $col) = $term->selection_beg ([$row, $col])
470 1403
471=item ($row, $col) = $term->selection_end ([$row, $col]) 1404=item ($row, $col) = $term->selection_end ([$row, $col])
472 1405
473Return the current values of the selection mark, begin or end positions, 1406Return the current values of the selection mark, begin or end positions.
474and optionally set them to new values.
475 1407
1408When arguments are given, then the selection coordinates are set to
1409C<$row> and C<$col>, and the selection screen is set to the current
1410screen.
1411
1412=item $screen = $term->selection_screen ([$screen])
1413
1414Returns the current selection screen, and then optionally sets it.
1415
1416=item $term->selection_make ($eventtime[, $rectangular])
1417
1418Tries to make a selection as set by C<selection_beg> and
1419C<selection_end>. If C<$rectangular> is true (default: false), a
1420rectangular selection will be made. This is the preferred function to make
1421a selection.
1422
476=item $success = $term->selection_grab ($eventtime) 1423=item $success = $term->selection_grab ($eventtime[, $clipboard])
477 1424
478Try to request the primary selection from the server (for example, as set 1425Try to acquire ownership of the primary (clipboard if C<$clipboard> is
479by the next method). 1426true) selection from the server. The corresponding text can be set
1427with the next method. No visual feedback will be given. This function
1428is mostly useful from within C<on_sel_grab> hooks.
480 1429
481=item $oldtext = $term->selection ([$newtext]) 1430=item $oldtext = $term->selection ([$newtext, $clipboard])
482 1431
483Return the current selection text and optionally replace it by C<$newtext>. 1432Return the current selection (clipboard if C<$clipboard> is true) text
1433and optionally replace it by C<$newtext>.
484 1434
1435=item $term->selection_clear ([$clipboard])
1436
1437Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
1438
485#=item $term->overlay ($x, $y, $text) 1439=item $term->overlay_simple ($x, $y, $text)
486# 1440
487#Create a simple multi-line overlay box. See the next method for details. 1441Create a simple multi-line overlay box. See the next method for details.
488# 1442
489#=cut 1443=cut
490 1444
491sub urxvt::term::scr_overlay { 1445sub overlay_simple {
492die;
493 my ($self, $x, $y, $text) = @_; 1446 my ($self, $x, $y, $text) = @_;
494 1447
495 my @lines = split /\n/, $text; 1448 my @lines = split /\n/, $text;
496 1449
497 my $w = 0; 1450 my $w = List::Util::max map $self->strwidth ($_), @lines;
498 for (map $self->strwidth ($_), @lines) {
499 $w = $_ if $w < $_;
500 }
501 1451
502 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1452 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
503 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1453 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
1454
1455 $overlay
504} 1456}
505 1457
506=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1458=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
507 1459
508Create a new (empty) overlay at the given position with the given 1460Create a new (empty) overlay at the given position with the given
520 1472
521The methods currently supported on C<urxvt::overlay> objects are: 1473The methods currently supported on C<urxvt::overlay> objects are:
522 1474
523=over 4 1475=over 4
524 1476
525=item $overlay->set ($x, $y, $text, $rend) 1477=item $overlay->set ($x, $y, $text[, $rend])
526 1478
527Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts 1479Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
528text in rxvt-unicode's special encoding and an array of rendition values 1480text in rxvt-unicode's special encoding and an array of rendition values
529at a specific position inside the overlay. 1481at a specific position inside the overlay.
530 1482
1483If C<$rend> is missing, then the rendition will not be changed.
1484
531=item $overlay->hide 1485=item $overlay->hide
532 1486
533If visible, hide the overlay, but do not destroy it. 1487If visible, hide the overlay, but do not destroy it.
534 1488
535=item $overlay->show 1489=item $overlay->show
536 1490
537If hidden, display the overlay again. 1491If hidden, display the overlay again.
538 1492
539=back 1493=back
540 1494
1495=item $popup = $term->popup ($event)
1496
1497Creates a new C<urxvt::popup> object that implements a popup menu. The
1498C<$event> I<must> be the event causing the menu to pop up (a button event,
1499currently).
1500
1501=cut
1502
1503sub popup {
1504 my ($self, $event) = @_;
1505
1506 $self->grab ($event->{time}, 1)
1507 or return;
1508
1509 my $popup = bless {
1510 term => $self,
1511 event => $event,
1512 }, urxvt::popup::;
1513
1514 Scalar::Util::weaken $popup->{term};
1515
1516 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
1517 Scalar::Util::weaken $self->{_destroy}{$popup};
1518
1519 $popup
1520}
1521
541=item $cellwidth = $term->strwidth $string 1522=item $cellwidth = $term->strwidth ($string)
542 1523
543Returns the number of screen-cells this string would need. Correctly 1524Returns the number of screen-cells this string would need. Correctly
544accounts for wide and combining characters. 1525accounts for wide and combining characters.
545 1526
546=item $octets = $term->locale_encode $string 1527=item $octets = $term->locale_encode ($string)
547 1528
548Convert the given text string into the corresponding locale encoding. 1529Convert the given text string into the corresponding locale encoding.
549 1530
550=item $string = $term->locale_decode $octets 1531=item $string = $term->locale_decode ($octets)
551 1532
552Convert the given locale-encoded octets into a perl string. 1533Convert the given locale-encoded octets into a perl string.
553 1534
1535=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1536
1537XORs the rendition values in the given span with the provided value
1538(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1539refresh hooks to provide effects similar to the selection.
1540
1541=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1542
1543Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1544whitespace will additionally be xored with the C<$rstyle2>, which defaults
1545to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1546it instead. Both styles I<MUST NOT> contain font styles.
1547
1548=item $term->scr_bell
1549
1550Ring the bell!
1551
1552=item $term->scr_add_lines ($string)
1553
1554Write the given text string to the screen, as if output by the application
1555running inside the terminal. It may not contain command sequences (escape
1556codes - see C<cmd_parse> for that), but is free to use line feeds,
1557carriage returns and tabs. The string is a normal text string, not in
1558locale-dependent encoding.
1559
1560Normally its not a good idea to use this function, as programs might be
1561confused by changes in cursor position or scrolling. Its useful inside a
1562C<on_add_lines> hook, though.
1563
1564=item $term->scr_change_screen ($screen)
1565
1566Switch to given screen - 0 primary, 1 secondary.
1567
1568=item $term->cmd_parse ($octets)
1569
1570Similar to C<scr_add_lines>, but the argument must be in the
1571locale-specific encoding of the terminal and can contain command sequences
1572(escape codes) that will be interpreted.
1573
554=item $term->tt_write ($octets) 1574=item $term->tt_write ($octets)
555 1575
556Write the octets given in C<$data> to the tty (i.e. as program input). To 1576Write the octets given in C<$octets> to the tty (i.e. as user input
1577to the program, see C<cmd_parse> for the opposite direction). To pass
557pass characters instead of octets, you should convert your strings first 1578characters instead of octets, you should convert your strings first to the
558to the locale-specific encoding using C<< $term->locale_encode >>. 1579locale-specific encoding using C<< $term->locale_encode >>.
559 1580
1581=item $term->tt_write_user_input ($octets)
1582
1583Like C<tt_write>, but should be used when writing strings in response to
1584the user pressing a key, to invoke the additional actions requested by
1585the user for that case (C<tt_write> doesn't do that).
1586
1587The typical use case would be inside C<on_action> hooks.
1588
1589=item $term->tt_paste ($octets)
1590
1591Write the octets given in C<$octets> to the tty as a paste, converting NL to
1592CR and bracketing the data with control sequences if bracketed paste mode
1593is set.
1594
1595=item $old_events = $term->pty_ev_events ([$new_events])
1596
1597Replaces the event mask of the pty watcher by the given event mask. Can
1598be used to suppress input and output handling to the pty/tty. See the
1599description of C<< urxvt::timer->events >>. Make sure to always restore
1600the previous value.
1601
1602=item $fd = $term->pty_fd
1603
1604Returns the master file descriptor for the pty in use, or C<-1> if no pty
1605is used.
1606
1607=item $windowid = $term->parent
1608
1609Return the window id of the toplevel window.
1610
560=item $nrow = $term->nrow 1611=item $windowid = $term->vt
561 1612
562=item $ncol = $term->ncol 1613Return the window id of the terminal window.
563 1614
564Return the number of rows/columns of the terminal window (i.e. as 1615=item $term->vt_emask_add ($x_event_mask)
565specified by C<-geometry>, excluding any scrollback).
566 1616
1617Adds the specified events to the vt event mask. Useful e.g. when you want
1618to receive pointer events all the times:
1619
1620 $term->vt_emask_add (urxvt::PointerMotionMask);
1621
1622=item $term->set_urgency ($set)
1623
1624Enable/disable the urgency hint on the toplevel window.
1625
1626=item $term->focus_in
1627
1628=item $term->focus_out
1629
1630=item $term->key_press ($state, $keycode[, $time])
1631
1632=item $term->key_release ($state, $keycode[, $time])
1633
1634Deliver various fake events to to terminal.
1635
1636=item $window_width = $term->width ([$new_value])
1637
1638=item $window_height = $term->height ([$new_value])
1639
1640=item $font_width = $term->fwidth ([$new_value])
1641
1642=item $font_height = $term->fheight ([$new_value])
1643
1644=item $font_ascent = $term->fbase ([$new_value])
1645
1646=item $terminal_rows = $term->nrow ([$new_value])
1647
1648=item $terminal_columns = $term->ncol ([$new_value])
1649
1650=item $has_focus = $term->focus ([$new_value])
1651
1652=item $is_mapped = $term->mapped ([$new_value])
1653
1654=item $max_scrollback = $term->saveLines ([$new_value])
1655
1656=item $nrow_plus_saveLines = $term->total_rows ([$new_value])
1657
1658=item $topmost_scrollback_row = $term->top_row ([$new_value])
1659
1660Return various integers describing terminal characteristics. If an
1661argument is given, changes the value and returns the previous one.
1662
1663=item $x_display = $term->display_id
1664
1665Return the DISPLAY used by rxvt-unicode.
1666
1667=item $lc_ctype = $term->locale
1668
1669Returns the LC_CTYPE category string used by this rxvt-unicode.
1670
567=item $nsaved = $term->nsaved 1671=item $env = $term->env
568 1672
569Returns the number of lines in the scrollback buffer. 1673Returns a copy of the environment in effect for the terminal as a hashref
1674similar to C<\%ENV>.
1675
1676=item @envv = $term->envv
1677
1678Returns the environment as array of strings of the form C<VAR=VALUE>.
1679
1680=item @argv = $term->argv
1681
1682Return the argument vector as this terminal, similar to @ARGV, but
1683includes the program name as first element.
1684
1685=cut
1686
1687sub env {
1688 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1689}
1690
1691=item $modifiermask = $term->ModLevel3Mask
1692
1693=item $modifiermask = $term->ModMetaMask
1694
1695=item $modifiermask = $term->ModNumLockMask
1696
1697Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1698AltGr), the meta key (often Alt) and the num lock key, if applicable.
1699
1700=item $screen = $term->current_screen
1701
1702Returns the currently displayed screen (0 primary, 1 secondary).
1703
1704=item $cursor_is_hidden = $term->hidden_cursor
1705
1706Returns whether the cursor is currently hidden or not.
1707
1708=item $priv_modes = $term->priv_modes
1709
1710Returns a bitset with the state of DEC private modes.
1711
1712Example:
1713
1714 if ($term->priv_modes & urxvt::PrivMode_mouse_report) {
1715 # mouse reporting is turned on
1716 }
570 1717
571=item $view_start = $term->view_start ([$newvalue]) 1718=item $view_start = $term->view_start ([$newvalue])
572 1719
573Returns the negative row number of the topmost line. Minimum value is 1720Returns the row number of the topmost displayed line. Maximum value is
574C<0>, which displays the normal terminal contents. Larger values scroll 1721C<0>, which displays the normal terminal contents. Lower values scroll
575this many lines into the scrollback buffer. 1722this many lines into the scrollback buffer.
576 1723
577=item $term->want_refresh 1724=item $term->want_refresh
578 1725
579Requests a screen refresh. At the next opportunity, rxvt-unicode will 1726Requests a screen refresh. At the next opportunity, rxvt-unicode will
580compare the on-screen display with its stored representation. If they 1727compare the on-screen display with its stored representation. If they
581differ, it redraws the differences. 1728differ, it redraws the differences.
582 1729
583Used after changing terminal contents to display them. 1730Used after changing terminal contents to display them.
584 1731
1732=item $term->refresh_check
1733
1734Checks if a refresh has been requested and, if so, schedules one.
1735
585=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1736=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
586 1737
587Returns the text of the entire row with number C<$row_number>. Row C<0> 1738Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
588is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 1739is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
589terminal line. The scrollback buffer starts at line C<-1> and extends to
590line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line 1740terminal line. Nothing will be returned if a nonexistent line
591is requested. 1741is requested.
592 1742
593If C<$new_text> is specified, it will replace characters in the current 1743If C<$new_text> is specified, it will replace characters in the current
594line, starting at column C<$start_col> (default C<0>), which is useful 1744line, starting at column C<$start_col> (default C<0>), which is useful
595to replace only parts of a line. The font index in the rendition will 1745to replace only parts of a line. The font index in the rendition will
596automatically be updated. 1746automatically be updated.
597 1747
598C<$text> is in a special encoding: tabs and wide characters that use more 1748C<$text> is in a special encoding: tabs and wide characters that use more
599than one cell when displayed are padded with urxvt::NOCHAR characters 1749than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
600(C<chr 65535>). Characters with combining characters and other characters 1750characters. Characters with combining characters and other characters that
601that do not fit into the normal tetx encoding will be replaced with 1751do not fit into the normal text encoding will be replaced with characters
602characters in the private use area. 1752in the private use area.
603 1753
604You have to obey this encoding when changing text. The advantage is 1754You have to obey this encoding when changing text. The advantage is
605that C<substr> and similar functions work on screen cells and not on 1755that C<substr> and similar functions work on screen cells and not on
606characters. 1756characters.
607 1757
637about the logical line that row C<$row_number> is part of. It supports the 1787about the logical line that row C<$row_number> is part of. It supports the
638following methods: 1788following methods:
639 1789
640=over 4 1790=over 4
641 1791
642=item $text = $line->t 1792=item $text = $line->t ([$new_text])
643 1793
644Returns the full text of the line, similar to C<ROW_t> 1794Returns or replaces the full text of the line, similar to C<ROW_t>
645 1795
646=item $rend = $line->r 1796=item $rend = $line->r ([$new_rend])
647 1797
648Returns the full rendition array of the line, similar to C<ROW_r> 1798Returns or replaces the full rendition array of the line, similar to C<ROW_r>
649 1799
650=item $length = $line->l 1800=item $length = $line->l
651 1801
652Returns the length of the line in cells, similar to C<ROW_l>. 1802Returns the length of the line in cells, similar to C<ROW_l>.
653 1803
658Return the row number of the first/last row of the line, respectively. 1808Return the row number of the first/last row of the line, respectively.
659 1809
660=item $offset = $line->offset_of ($row, $col) 1810=item $offset = $line->offset_of ($row, $col)
661 1811
662Returns the character offset of the given row|col pair within the logical 1812Returns the character offset of the given row|col pair within the logical
663line. 1813line. Works for rows outside the line, too, and returns corresponding
1814offsets outside the string.
664 1815
665=item ($row, $col) = $line->coord_of ($offset) 1816=item ($row, $col) = $line->coord_of ($offset)
666 1817
667Translates a string offset into terminal coordinates again. 1818Translates a string offset into terminal coordinates again.
668 1819
669=back 1820=back
670 1821
671=cut 1822=cut
672 1823
673sub urxvt::term::line { 1824sub line {
674 my ($self, $row) = @_; 1825 my ($self, $row) = @_;
675 1826
676 my $maxrow = $self->nrow - 1; 1827 my $maxrow = $self->nrow - 1;
677 1828
678 my ($beg, $end) = ($row, $row); 1829 my ($beg, $end) = ($row, $row);
682 1833
683 bless { 1834 bless {
684 term => $self, 1835 term => $self,
685 beg => $beg, 1836 beg => $beg,
686 end => $end, 1837 end => $end,
1838 ncol => $self->ncol,
687 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 1839 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
688 }, urxvt::line:: 1840 }, urxvt::line::
689} 1841}
690 1842
691sub urxvt::line::t { 1843sub urxvt::line::t {
692 my ($self) = @_; 1844 my ($self) = @_;
693 1845
1846 if (@_ > 1) {
1847 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1848 for $self->{beg} .. $self->{end};
1849 }
1850
1851 defined wantarray &&
694 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1852 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
695 0, $self->{len} 1853 0, $self->{len}
696} 1854}
697 1855
698sub urxvt::line::r { 1856sub urxvt::line::r {
699 my ($self) = @_; 1857 my ($self) = @_;
700 1858
1859 if (@_ > 1) {
1860 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1861 for $self->{beg} .. $self->{end};
1862 }
1863
1864 if (defined wantarray) {
701 my $rend = [ 1865 my $rend = [
702 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1866 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
703 ]; 1867 ];
704 $#$rend = $self->{len} - 1; 1868 $#$rend = $self->{len} - 1;
705 $rend 1869 return $rend;
1870 }
1871
1872 ()
706} 1873}
707 1874
708sub urxvt::line::beg { $_[0]{beg} } 1875sub urxvt::line::beg { $_[0]{beg} }
709sub urxvt::line::end { $_[0]{end} } 1876sub urxvt::line::end { $_[0]{end} }
710sub urxvt::line::l { $_[0]{len} } 1877sub urxvt::line::l { $_[0]{len} }
711 1878
712sub urxvt::line::offset_of { 1879sub urxvt::line::offset_of {
713 my ($self, $row, $col) = @_; 1880 my ($self, $row, $col) = @_;
714 1881
715 ($row - $self->{beg}) * $self->{term}->ncol + $col 1882 ($row - $self->{beg}) * $self->{ncol} + $col
716} 1883}
717 1884
718sub urxvt::line::coord_of { 1885sub urxvt::line::coord_of {
719 my ($self, $offset) = @_; 1886 my ($self, $offset) = @_;
720 1887
721 use integer; 1888 use integer;
722 1889
723 ( 1890 (
724 $offset / $self->{term}->ncol + $self->{beg}, 1891 $offset / $self->{ncol} + $self->{beg},
725 $offset % $self->{term}->ncol 1892 $offset % $self->{ncol}
726 ) 1893 )
727} 1894}
728 1895
729=item ($row, $col) = $line->coord_of ($offset)
730=item $text = $term->special_encode $string 1896=item $text = $term->special_encode $string
731 1897
732Converts a perl string into the special encoding used by rxvt-unicode, 1898Converts a perl string into the special encoding used by rxvt-unicode,
733where one character corresponds to one screen cell. See 1899where one character corresponds to one screen cell. See
734C<< $term->ROW_t >> for details. 1900C<< $term->ROW_t >> for details.
735 1901
736=item $string = $term->special_decode $text 1902=item $string = $term->special_decode $text
737 1903
738Converts rxvt-unicodes text reprsentation into a perl string. See 1904Converts rxvt-unicodes text representation into a perl string. See
739C<< $term->ROW_t >> for details. 1905C<< $term->ROW_t >> for details.
740 1906
1907=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1908
1909=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1910
1911Register/unregister a synchronous button grab. See the XGrabButton
1912manpage.
1913
1914=item $success = $term->grab ($eventtime[, $sync])
1915
1916Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1917synchronous (C<$sync> is true). Also remembers the grab timestamp.
1918
1919=item $term->allow_events_async
1920
1921Calls XAllowEvents with AsyncBoth for the most recent grab.
1922
1923=item $term->allow_events_sync
1924
1925Calls XAllowEvents with SyncBoth for the most recent grab.
1926
1927=item $term->allow_events_replay
1928
1929Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1930recent grab.
1931
1932=item $term->ungrab
1933
1934Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1935evaluation errors, as it is better to lose the grab in the error case as
1936the session.
1937
1938=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1939
1940=item $atom_name = $term->XGetAtomName ($atom)
1941
1942=item @atoms = $term->XListProperties ($window)
1943
1944=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1945
1946=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
1947
1948=item $term->XDeleteProperty ($window, $property)
1949
1950=item $window = $term->DefaultRootWindow
1951
1952=item $term->XReparentWindow ($window, $parent, [$x, $y])
1953
1954=item $term->XMapWindow ($window)
1955
1956=item $term->XUnmapWindow ($window)
1957
1958=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1959
1960=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1961
1962=item $term->XChangeInput ($window, $add_events[, $del_events])
1963
1964=item $keysym = $term->XStringToKeysym ($string)
1965
1966=item $string = $term->XKeysymToString ($keysym)
1967
1968Various X or X-related functions. The C<$term> object only serves as
1969the source of the display, otherwise those functions map more-or-less
1970directly onto the X functions of the same name.
1971
741=back 1972=back
1973
1974=cut
1975
1976package urxvt::popup;
1977
1978=head2 The C<urxvt::popup> Class
1979
1980=over 4
1981
1982=cut
1983
1984sub add_item {
1985 my ($self, $item) = @_;
1986
1987 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1988 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1989 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1990
1991 $item->{render} ||= sub { $_[0]{text} };
1992
1993 push @{ $self->{item} }, $item;
1994}
1995
1996=item $popup->add_title ($title)
1997
1998Adds a non-clickable title to the popup.
1999
2000=cut
2001
2002sub add_title {
2003 my ($self, $title) = @_;
2004
2005 $self->add_item ({
2006 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
2007 text => $title,
2008 activate => sub { },
2009 });
2010}
2011
2012=item $popup->add_separator ([$sepchr])
2013
2014Creates a separator, optionally using the character given as C<$sepchr>.
2015
2016=cut
2017
2018sub add_separator {
2019 my ($self, $sep) = @_;
2020
2021 $sep ||= "=";
2022
2023 $self->add_item ({
2024 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
2025 text => "",
2026 render => sub { $sep x $self->{term}->ncol },
2027 activate => sub { },
2028 });
2029}
2030
2031=item $popup->add_button ($text, $cb)
2032
2033Adds a clickable button to the popup. C<$cb> is called whenever it is
2034selected.
2035
2036=cut
2037
2038sub add_button {
2039 my ($self, $text, $cb) = @_;
2040
2041 $self->add_item ({ type => "button", text => $text, activate => $cb});
2042}
2043
2044=item $popup->add_toggle ($text, $initial_value, $cb)
2045
2046Adds a toggle/checkbox item to the popup. The callback gets called
2047whenever it gets toggled, with a boolean indicating its new value as its
2048first argument.
2049
2050=cut
2051
2052sub add_toggle {
2053 my ($self, $text, $value, $cb) = @_;
2054
2055 my $item; $item = {
2056 type => "button",
2057 text => " $text",
2058 value => $value,
2059 render => sub { ($_[0]{value} ? "* " : " ") . $text },
2060 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
2061 };
2062
2063 $self->add_item ($item);
2064}
2065
2066=item $popup->show
2067
2068Displays the popup (which is initially hidden).
2069
2070=cut
2071
2072sub show {
2073 my ($self) = @_;
2074
2075 local $urxvt::popup::self = $self;
2076
2077 my $env = $self->{term}->env;
2078 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
2079 delete $env->{LC_ALL};
2080 $env->{LC_CTYPE} = $self->{term}->locale;
2081
2082 my $term = urxvt::term->new (
2083 $env, "popup",
2084 "--perl-lib" => "", "--perl-ext-common" => "",
2085 "-pty-fd" => -1, "-sl" => 0,
2086 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
2087 "--transient-for" => $self->{term}->parent,
2088 "-display" => $self->{term}->display_id,
2089 "-pe" => "urxvt-popup",
2090 ) or die "unable to create popup window\n";
2091
2092 unless (delete $term->{urxvt_popup_init_done}) {
2093 $term->ungrab;
2094 $term->destroy;
2095 die "unable to initialise popup window\n";
2096 }
2097}
2098
2099sub DESTROY {
2100 my ($self) = @_;
2101
2102 delete $self->{term}{_destroy}{$self};
2103 $self->{term}->ungrab;
2104}
2105
2106=back
2107
2108=cut
2109
2110package urxvt::watcher;
742 2111
743=head2 The C<urxvt::timer> Class 2112=head2 The C<urxvt::timer> Class
744 2113
745This class implements timer watchers/events. Time is represented as a 2114This class implements timer watchers/events. Time is represented as a
746fractional number of seconds since the epoch. Example: 2115fractional number of seconds since the epoch. Example:
750 ->new 2119 ->new
751 ->interval (1) 2120 ->interval (1)
752 ->cb (sub { 2121 ->cb (sub {
753 $term->{overlay}->set (0, 0, 2122 $term->{overlay}->set (0, 0,
754 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); 2123 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
755 }); 2124 });
756 2125
757=over 4 2126=over 4
758 2127
759=item $timer = new urxvt::timer 2128=item $timer = new urxvt::timer
760 2129
763 2132
764=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 2133=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
765 2134
766Set the callback to be called when the timer triggers. 2135Set the callback to be called when the timer triggers.
767 2136
768=item $tstamp = $timer->at
769
770Return the time this watcher will fire next.
771
772=item $timer = $timer->set ($tstamp) 2137=item $timer = $timer->set ($tstamp[, $interval])
773 2138
774Set the time the event is generated to $tstamp. 2139Set the time the event is generated to $tstamp (and optionally specifies a
2140new $interval).
775 2141
776=item $timer = $timer->interval ($interval) 2142=item $timer = $timer->interval ($interval)
777 2143
778Normally (and when C<$interval> is C<0>), the timer will automatically 2144By default (and when C<$interval> is C<0>), the timer will automatically
779stop after it has fired once. If C<$interval> is non-zero, then the timer 2145stop after it has fired once. If C<$interval> is non-zero, then the timer
780is automatically rescheduled at the given intervals. 2146is automatically rescheduled at the given intervals.
781 2147
782=item $timer = $timer->start 2148=item $timer = $timer->start
783 2149
784Start the timer. 2150Start the timer.
785 2151
786=item $timer = $timer->start ($tstamp) 2152=item $timer = $timer->start ($tstamp[, $interval])
787 2153
788Set the event trigger time to C<$tstamp> and start the timer. 2154Set the event trigger time to C<$tstamp> and start the timer. Optionally
2155also replaces the interval.
2156
2157=item $timer = $timer->after ($delay[, $interval])
2158
2159Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
789 2160
790=item $timer = $timer->stop 2161=item $timer = $timer->stop
791 2162
792Stop the timer. 2163Stop the timer.
793 2164
799 2170
800 $term->{socket} = ... 2171 $term->{socket} = ...
801 $term->{iow} = urxvt::iow 2172 $term->{iow} = urxvt::iow
802 ->new 2173 ->new
803 ->fd (fileno $term->{socket}) 2174 ->fd (fileno $term->{socket})
804 ->events (1) # wait for read data 2175 ->events (urxvt::EV_READ)
805 ->start 2176 ->start
806 ->cb (sub { 2177 ->cb (sub {
807 my ($iow, $revents) = @_; 2178 my ($iow, $revents) = @_;
808 # $revents must be 1 here, no need to check 2179 # $revents must be 1 here, no need to check
809 sysread $term->{socket}, my $buf, 8192 2180 sysread $term->{socket}, my $buf, 8192
822Set the callback to be called when io events are triggered. C<$reventmask> 2193Set the callback to be called when io events are triggered. C<$reventmask>
823is a bitset as described in the C<events> method. 2194is a bitset as described in the C<events> method.
824 2195
825=item $iow = $iow->fd ($fd) 2196=item $iow = $iow->fd ($fd)
826 2197
827Set the filedescriptor (not handle) to watch. 2198Set the file descriptor (not handle) to watch.
828 2199
829=item $iow = $iow->events ($eventmask) 2200=item $iow = $iow->events ($eventmask)
830 2201
831Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 2202Set the event mask to watch. The only allowed values are
832data, Bit #1 (value C<2>) enables watching for write data. 2203C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
2204together, or C<urxvt::EV_NONE>.
833 2205
834=item $iow = $iow->start 2206=item $iow = $iow->start
835 2207
836Start watching for requested events on the given handle. 2208Start watching for requested events on the given handle.
837 2209
838=item $iow = $iow->stop 2210=item $iow = $iow->stop
839 2211
840Stop watching for events on the given filehandle. 2212Stop watching for events on the given file handle.
2213
2214=back
2215
2216=head2 The C<urxvt::iw> Class
2217
2218This class implements idle watchers, that get called automatically when
2219the process is idle. They should return as fast as possible, after doing
2220some useful work.
2221
2222=over 4
2223
2224=item $iw = new urxvt::iw
2225
2226Create a new idle watcher object in stopped state.
2227
2228=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2229
2230Set the callback to be called when the watcher triggers.
2231
2232=item $timer = $timer->start
2233
2234Start the watcher.
2235
2236=item $timer = $timer->stop
2237
2238Stop the watcher.
2239
2240=back
2241
2242=head2 The C<urxvt::pw> Class
2243
2244This class implements process watchers. They create an event whenever a
2245process exits, after which they stop automatically.
2246
2247 my $pid = fork;
2248 ...
2249 $term->{pw} = urxvt::pw
2250 ->new
2251 ->start ($pid)
2252 ->cb (sub {
2253 my ($pw, $exit_status) = @_;
2254 ...
2255 });
2256
2257=over 4
2258
2259=item $pw = new urxvt::pw
2260
2261Create a new process watcher in stopped state.
2262
2263=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2264
2265Set the callback to be called when the timer triggers.
2266
2267=item $pw = $timer->start ($pid)
2268
2269Tells the watcher to start watching for process C<$pid>.
2270
2271=item $pw = $pw->stop
2272
2273Stop the watcher.
841 2274
842=back 2275=back
843 2276
844=head1 ENVIRONMENT 2277=head1 ENVIRONMENT
845 2278
848This variable controls the verbosity level of the perl extension. Higher 2281This variable controls the verbosity level of the perl extension. Higher
849numbers indicate more verbose output. 2282numbers indicate more verbose output.
850 2283
851=over 4 2284=over 4
852 2285
853=item 0 - only fatal messages 2286=item == 0 - fatal messages
854 2287
855=item 3 - script loading and management 2288=item >= 3 - script loading and management
856 2289
857=item 10 - all events received 2290=item >=10 - all called hooks
2291
2292=item >=11 - hook return values
858 2293
859=back 2294=back
860 2295
861=head1 AUTHOR 2296=head1 AUTHOR
862 2297
863 Marc Lehmann <pcg@goof.com> 2298 Marc Lehmann <schmorp@schmorp.de>
864 http://software.schmorp.de/pkg/rxvt-unicode 2299 http://software.schmorp.de/pkg/rxvt-unicode
865 2300
866=cut 2301=cut
867 2302
8681 23031
2304
2305# vim: sw=3:

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