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Revision 1.32 by root, Wed Jan 4 21:37:55 2006 UTC vs.
Revision 1.256 by sf-exg, Thu Jul 14 05:10:06 2016 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 extension tries to be more intelligent when 48Extensions may add additional resources and C<actions>, i.e., methods
45the user extends selections (double-click). Right now, it tries to select 49which can be bound to a key and invoked by the user. An extension can
46urls and complete shell-quoted arguments, which is very convenient, too, 50define the resources it support using so called META comments,
47if your F<ls> supports C<--quoting-style=shell>. 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.
48 56
49It also offers the following bindable event: 57=head1 API DOCUMENTATION
50
51=over 4
52
53=item rot13
54
55Rot-13 the selection when activated. Used via keyboard trigger:
56
57 URxvt.keysym.C-M-r: perl:selection:rot13
58
59=back
60
61=item digital-clock
62
63Displays a digital clock using the built-in overlay.
64
65=item example-refresh-hooks
66
67Displays a very simple digital clock in the upper right corner of the
68window. Illustrates overwriting the refresh callbacks to create your own
69overlays or changes.
70
71=back
72 58
73=head2 General API Considerations 59=head2 General API Considerations
74 60
75All objects (such as terminals, time watchers etc.) are typical 61All objects (such as terminals, time watchers etc.) are typical
76reference-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
81When 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
82emptied, 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
83the 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
84terminal is destroyed. 70terminal is destroyed.
85 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
86=head2 Hooks 134=head2 Hooks
87 135
88The following subroutines can be declared in loaded scripts, and will be 136The following subroutines can be declared in extension files, and will be
89called whenever the relevant event happens. 137called whenever the relevant event happens.
90 138
91The 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
92and extension package. You can call all C<urxvt::term> methods on it, but 140the in the C<Extension Objects> section.
93its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94object that is shared between all packages is stored in the C<term>
95member.
96 141
97All 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
98counts 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
99and the relevant action might not be carried out by the C++ code. 144relevant action might not be carried out by the C++ code.
100 145
101When in doubt, return a false value (preferably C<()>). 146I<< When in doubt, return a false value (preferably C<()>). >>
102 147
103=over 4 148=over 4
104 149
105=item on_init $term 150=item on_init $term
106 151
107Called after a new terminal object has been initialized, but before 152Called after a new terminal object has been initialized, but before
108windows 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).
109 168
110=item on_reset $term 169=item on_reset $term
111 170
112Called 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
113control 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
114variables. 173variables.
115 174
116=item on_start $term 175=item on_child_start $term, $pid
117 176
118Called at the very end of initialisation of a new terminal, just before 177Called just after the child process has been C<fork>ed.
119returning 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>.
120 183
121=item on_sel_make $term, $eventtime 184=item on_sel_make $term, $eventtime
122 185
123Called 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
124selection 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
131 194
132Called whenever a selection has been copied, but before the selection is 195Called whenever a selection has been copied, but before the selection is
133requested from the server. The selection text can be queried and changed 196requested from the server. The selection text can be queried and changed
134by calling C<< $term->selection >>. 197by calling C<< $term->selection >>.
135 198
136Returning a true value aborts selection grabbing. It will still be hilighted. 199Returning a true value aborts selection grabbing. It will still be highlighted.
137 200
138=item on_sel_extend $term 201=item on_sel_extend $term
139 202
140Called 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
141click) and is either supposed to return false (normal operation), or 204click) and is either supposed to return false (normal operation), or
142should 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
143processing. 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.
144 209
145See the F<selection> example extension. 210See the F<selection> example extension.
146 211
147=item on_focus_in $term
148
149Called whenever the window gets the keyboard focus, before urxvt does
150focus in processing.
151
152=item on_focus_out $term
153
154Called wheneever the window loses keyboard focus, before urxvt does focus
155out processing.
156
157=item on_view_change $term, $offset 212=item on_view_change $term, $offset
158 213
159Called whenever the view offset changes, i..e the user or program 214Called whenever the view offset changes, i.e. the user or program
160scrolls. Offset C<0> means display the normal terminal, positive values 215scrolls. Offset C<0> means display the normal terminal, positive values
161show this many lines of scrollback. 216show this many lines of scrollback.
162 217
163=item on_scroll_back $term, $lines, $saved 218=item on_scroll_back $term, $lines, $saved
164 219
168 223
169It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 224It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
170$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
171number of lines that will be in the scrollback buffer. 226number of lines that will be in the scrollback buffer.
172 227
173=item on_tty_activity $term *NYI*
174
175Called whenever the program(s) running in the urxvt window send output.
176
177=item on_osc_seq $term, $string 228=item on_osc_seq $term, $op, $args, $resp
229
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, $resp
178 239
179Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 240Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
180operating system command) is processed. Cursor position and other state 241operating system command) is processed. Cursor position and other state
181information is up-to-date when this happens. For interoperability, the 242information is up-to-date when this happens. For interoperability, the
182string should start with the extension name and a colon, to distinguish 243string should start with the extension name (sans -osc) and a semicolon,
183it from commands for other extensions, and this might be enforced in the 244to distinguish it from commands for other extensions, and this might be
184future. 245enforced in the future.
246
247For example, C<overlay-osc> uses this:
248
249 sub on_osc_seq_perl {
250 my ($self, $osc, $resp) = @_;
251
252 return unless $osc =~ s/^overlay;//;
253
254 ... process remaining $osc string
255 }
185 256
186Be careful not ever to trust (in a security sense) the data you receive, 257Be careful not ever to trust (in a security sense) the data you receive,
187as its source can not easily be controleld (e-mail content, messages from 258as its source can not easily be controlled (e-mail content, messages from
188other users on the same system etc.). 259other users on the same system etc.).
189 260
261For responses, C<$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.
297
190=item on_refresh_begin $term 298=item on_refresh_begin $term
191 299
192Called just before the screen gets redrawn. Can be used for overlay 300Called just before the screen gets redrawn. Can be used for overlay or
193or similar effects by modify terminal contents in refresh_begin, and 301similar effects by modifying the terminal contents in refresh_begin, and
194restoring them in refresh_end. The built-in overlay and selection display 302restoring them in refresh_end. The built-in overlay and selection display
195code is run after this hook, and takes precedence. 303code is run after this hook, and takes precedence.
196 304
197=item on_refresh_end $term 305=item on_refresh_end $term
198 306
199Called just after the screen gets redrawn. See C<on_refresh_begin>. 307Called just after the screen gets redrawn. See C<on_refresh_begin>.
200 308
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
201=item on_keyboard_command $term, $string 317=item on_user_command $term, $string *DEPRECATED*
202 318
203Called whenever the user presses a key combination that has a 319Called whenever a user-configured event is being activated (e.g. via
204C<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>
205resource 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.
206 392
207=back 393=back
208 394
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
209=head2 Variables in the C<urxvt> Package 420=head2 Variables in the C<urxvt> Package
210 421
211=over 4 422=over 4
212 423
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
213=item $urxvt::TERM 437=item $urxvt::TERM
214 438
215The current terminal. Whenever a callback/Hook is bein executed, this 439The current terminal. This variable stores the current C<urxvt::term>
216variable 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>.
217 457
218=back 458=back
219 459
220=head2 Functions in the C<urxvt> Package 460=head2 Functions in the C<urxvt> Package
221 461
222=over 4 462=over 4
223 463
224=item urxvt::fatal $errormessage 464=item urxvt::fatal $errormessage
225 465
226Fatally aborts execution with the given error message. Avoid at all 466Fatally aborts execution with the given error message (which should
227costs! The only time this is acceptable is when the terminal process 467include a trailing newline). Avoid at all costs! The only time this
228starts up. 468is acceptable (and useful) is in the init hook, where it prevents the
469terminal from starting up.
229 470
230=item urxvt::warn $string 471=item urxvt::warn $string
231 472
232Calls 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
233newline. The module also overwrites the C<warn> builtin with a function 474newline. The module also overwrites the C<warn> builtin with a function
234that calls this function. 475that calls this function.
235 476
236Using 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
237correct place, e.g. on stderr of the connecting urxvtc client. 478correct place, e.g. on stderr of the connecting urxvtc client.
238 479
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
239=item $time = urxvt::NOW 489=item $time = urxvt::NOW
240 490
241Returns 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.
242 516
243=back 517=back
244 518
245=head2 RENDITION 519=head2 RENDITION
246 520
261 535
262=item $rend = urxvt::OVERLAY_RSTYLE 536=item $rend = urxvt::OVERLAY_RSTYLE
263 537
264Return the rendition mask used for overlays by default. 538Return the rendition mask used for overlays by default.
265 539
266=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline 540=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
541urxvt::RS_RVid, urxvt::RS_Uline
267 542
268Return the bit that enabled bold, italic, blink, reverse-video and 543Return the bit that enabled bold, italic, blink, reverse-video and
269underline, respectively. To enable such a style, just logically OR it into 544underline, respectively. To enable such a style, just logically OR it into
270the bitset. 545the bitset.
271 546
273 548
274=item $background = urxvt::GET_BASEBG $rend 549=item $background = urxvt::GET_BASEBG $rend
275 550
276Return the foreground/background colour index, respectively. 551Return the foreground/background colour index, respectively.
277 552
278=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 553=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
279 554
280=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 555=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
556
557=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
281 558
282Replace the foreground/background colour in the rendition mask with the 559Replace the foreground/background colour in the rendition mask with the
283specified one. 560specified one.
284 561
285=item $value = urxvt::GET_CUSTOM ($rend) 562=item $value = urxvt::GET_CUSTOM $rend
286 563
287Return the "custom" value: Every rendition has 5 bits for use by 564Return the "custom" value: Every rendition has 5 bits for use by
288extensions. They can be set and changed as you like and are initially 565extensions. They can be set and changed as you like and are initially
289zero. 566zero.
290 567
291=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 568=item $rend = urxvt::SET_CUSTOM $rend, $new_value
292 569
293Change the custom value. 570Change the custom value.
294 571
295=back 572=back
296 573
297=cut 574=cut
298 575
299package urxvt;
300
301use strict;
302use Scalar::Util ();
303
304our $TERM;
305our @HOOKNAME;
306our $LIBDIR;
307
308BEGIN { 576BEGIN {
309 urxvt->bootstrap;
310
311 # overwrite perl's warn 577 # overwrite perl's warn
312 *CORE::GLOBAL::warn = sub { 578 *CORE::GLOBAL::warn = sub {
313 my $msg = join "", @_; 579 my $msg = join "", @_;
314 $msg .= "\n" 580 $msg .= "\n"
315 unless $msg =~ /\n$/; 581 unless $msg =~ /\n$/;
316 urxvt::warn ($msg); 582 urxvt::warn ($msg);
317 }; 583 };
318} 584}
319 585
320my @hook_count; 586no warnings 'utf8';
587
588sub parse_resource {
589 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
590
591 $term->scan_extensions;
592
593 my $r = $term->{meta}{resource};
594 keys %$r; # reset iterator
595 while (my ($k, $v) = each %$r) {
596 my $pattern = $k;
597 $pattern =~ y/./-/ if $isarg;
598 my $prefix = $name;
599 my $suffix;
600 if ($pattern =~ /\-$/) {
601 $prefix = substr $name, 0, length $pattern;
602 $suffix = substr $name, length $pattern;
603 }
604 if ($pattern eq $prefix) {
605 $name = "$urxvt::RESCLASS.$k$suffix";
606
607 push @{ $term->{perl_ext_3} }, $v->[0];
608
609 return 1 unless $isarg;
610
611 if ($v->[1] eq "boolean") {
612 $term->put_option_db ($name, $flag ? "true" : "false");
613 return 1;
614 } else {
615 $term->put_option_db ($name, $value);
616 return 1 + 2;
617 }
618 }
619 }
620
621 0
622}
623
624sub usage {
625 my ($term, $usage_type) = @_;
626
627 $term->scan_extensions;
628
629 my $r = $term->{meta}{resource};
630
631 for my $pattern (sort keys %$r) {
632 my ($ext, $type, $desc) = @{ $r->{$pattern} };
633
634 $desc .= " (-pe $ext)";
635
636 if ($usage_type == 1) {
637 $pattern =~ y/./-/;
638 $pattern =~ s/-$/-.../g;
639
640 if ($type eq "boolean") {
641 urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
642 } else {
643 urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
644 }
645 } else {
646 $pattern =~ s/\.$/.*/g;
647 urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
648 }
649 }
650}
651
321my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 652my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
322 653
323sub verbose { 654sub verbose {
324 my ($level, $msg) = @_; 655 my ($level, $msg) = @_;
325 warn "$msg\n" if $level <= $verbosity; 656 warn "$msg\n" if $level <= $verbosity;
326} 657}
327 658
328# find on_xxx subs in the package and register them 659my %extension_pkg;
329# as hooks
330sub register_package($) {
331 my ($pkg) = @_;
332
333 for my $htype (0.. $#HOOKNAME) {
334 my $name = $HOOKNAME[$htype];
335
336 my $ref = $pkg->can ("on_" . lc $name)
337 or next;
338
339 $TERM->{_hook}[$htype]{$pkg} = $ref;
340 $hook_count[$htype]++
341 or set_should_invoke $htype, 1;
342 }
343}
344
345my $script_pkg = "script0000";
346my %script_pkg;
347 660
348# load a single script into its own package, once only 661# load a single script into its own package, once only
349sub script_package($) { 662sub extension_package($) {
350 my ($path) = @_; 663 my ($path) = @_;
351 664
352 $script_pkg{$path} ||= do { 665 $extension_pkg{$path} ||= do {
353 my $pkg = "urxvt::" . ($script_pkg++); 666 $path =~ /([^\/\\]+)$/;
667 my $pkg = $1;
668 $pkg =~ s/[^[:word:]]/_/g;
669 $pkg = "urxvt::ext::$pkg";
354 670
355 verbose 3, "loading script '$path' into package '$pkg'"; 671 verbose 3, "loading extension '$path' into package '$pkg'";
672
673 (${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
356 674
357 open my $fh, "<:raw", $path 675 open my $fh, "<:raw", $path
358 or die "$path: $!"; 676 or die "$path: $!";
359 677
360 my $source = "package $pkg; use strict; use utf8;\n" 678 my $source =
679 "package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
361 . "#line 1 \"$path\"\n{\n" 680 . "#line 1 \"$path\"\n{\n"
362 . (do { local $/; <$fh> }) 681 . (do { local $/; <$fh> })
363 . "\n};\n1"; 682 . "\n};\n1";
364 683
684 eval $source
365 eval $source or die "$path: $@"; 685 or die "$path: $@";
366 686
367 $pkg 687 $pkg
368 } 688 }
369} 689}
370 690
373# called by the rxvt core 693# called by the rxvt core
374sub invoke { 694sub invoke {
375 local $TERM = shift; 695 local $TERM = shift;
376 my $htype = shift; 696 my $htype = shift;
377 697
378 if ($htype == 0) { # INIT 698 if ($htype == HOOK_INIT) {
379 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 699 my @dirs = $TERM->perl_libdirs;
380 700
701 $TERM->scan_extensions;
702
703 my %ext_arg;
704
705 {
706 my @init = @TERM_INIT;
707 @TERM_INIT = ();
708 $_->($TERM) for @init;
709 my @pkg = @TERM_EXT;
710 @TERM_EXT = ();
711 $TERM->register_package ($_) for @pkg;
712 }
713
714 for (
381 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) { 715 (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
716 @{ delete $TERM->{perl_ext_3} }
717 ) {
718 if ($_ eq "default") {
719
720 $ext_arg{$_} = []
721 for qw(selection option-popup selection-popup readline searchable-scrollback);
722
723 for ($TERM->_keysym_resources) {
724 next if /^(?:string|command|builtin|builtin-string|perl)/;
725 next unless /^([A-Za-z0-9_\-]+):/;
726
727 my $ext = $1;
728
729 $ext_arg{$ext} = [];
730 }
731
732 } elsif (/^-(.*)$/) {
733 delete $ext_arg{$1};
734
735 } elsif (/^([^<]+)<(.*)>$/) {
736 push @{ $ext_arg{$1} }, $2;
737
738 } else {
739 $ext_arg{$_} ||= [];
740 }
741 }
742
743 for my $ext (sort keys %ext_arg) {
382 my @files = grep -f $_, map "$_/$ext", @dirs; 744 my @files = grep -f $_, map "$_/$ext", @dirs;
383 745
384 if (@files) { 746 if (@files) {
385 register_package script_package $files[0]; 747 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
386 } else { 748 } else {
387 warn "perl extension '$ext' not found in perl library search path\n"; 749 warn "perl extension '$ext' not found in perl library search path\n";
388 } 750 }
389 } 751 }
752
753 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
754 warn $@ if $@;
390 } 755 }
391 756
392 $retval = undef; 757 $retval = undef;
393 758
394 if (my $cb = $TERM->{_hook}[$htype]) { 759 if (my $cb = $TERM->{_hook}[$htype]) {
395 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 760 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
396 if $verbosity >= 10; 761 if $verbosity >= 10;
397 762
398 keys %$cb; 763 if ($htype == HOOK_ACTION) {
764 # this hook is only sent to the extension with the name
765 # matching the first arg
766 my $pkg = shift;
767 $pkg =~ y/-/_/;
768 $pkg = "urxvt::ext::$pkg";
399 769
400 while (my ($pkg, $cb) = each %$cb) { 770 $cb = $cb->{$pkg}
401 $retval = $cb->( 771 or return undef; #TODO: maybe warn user?
402 $TERM->{_pkg}{$pkg} ||= do { 772
403 my $proxy = bless { }, urxvt::term::proxy::; 773 $cb = { $pkg => $cb };
404 Scalar::Util::weaken ($proxy->{term} = $TERM);
405 $proxy
406 },
407 @_,
408 ) and last;
409 } 774 }
410 }
411 775
412 if ($htype == 1) { # DESTROY 776 for my $pkg (keys %$cb) {
413 # remove hooks if unused 777 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
414 if (my $hook = $TERM->{_hook}) { 778 $retval ||= $retval_;
415 for my $htype (0..$#$hook) { 779
416 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 780 if ($@) {
417 or set_should_invoke $htype, 0; 781 $TERM->ungrab; # better to lose the grab than the session
782 warn $@;
418 } 783 }
419 } 784 }
420 785
786 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
787 if $verbosity >= 11;
788 }
789
790 if ($htype == HOOK_DESTROY) {
421 # clear package objects 791 # clear package objects
422 %$_ = () for values %{ $TERM->{_pkg} }; 792 %$_ = () for values %{ $TERM->{_pkg} };
423 793
424 # clear package 794 # clear package
425 %$TERM = (); 795 %$TERM = ();
426 } 796 }
427 797
428 $retval 798 $retval
429} 799}
430 800
431sub urxvt::term::proxy::AUTOLOAD { 801sub SET_COLOR($$$) {
432 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 802 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
803}
804
805sub rend2mask {
806 no strict 'refs';
807 my ($str, $mask) = (@_, 0);
808 my %color = ( fg => undef, bg => undef );
809 my @failed;
810 for my $spec ( split /\s+/, $str ) {
811 if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
812 $color{lc($1)} = $2;
813 } else {
814 my $neg = $spec =~ s/^[-^]//;
815 unless ( exists &{"RS_$spec"} ) {
816 push @failed, $spec;
817 next;
818 }
819 my $cur = &{"RS_$spec"};
820 if ( $neg ) {
821 $mask &= ~$cur;
822 } else {
823 $mask |= $cur;
824 }
825 }
826 }
827 ($mask, @color{qw(fg bg)}, \@failed)
828}
829
830package urxvt::term::extension;
831
832=head2 The C<urxvt::term::extension> class
833
834Each extension attached to a terminal object is represented by
835a C<urxvt::term::extension> object.
836
837You can use these objects, which are passed to all callbacks to store any
838state related to the terminal and extension instance.
839
840The methods (And data members) documented below can be called on extension
841objects, in addition to call methods documented for the <urxvt::term>
842class.
843
844=over 4
845
846=item $urxvt_term = $self->{term}
847
848Returns the C<urxvt::term> object associated with this instance of the
849extension. This member I<must not> be changed in any way.
850
851=cut
852
853our $AUTOLOAD;
854
855sub AUTOLOAD {
856 $AUTOLOAD =~ /:([^:]+)$/
433 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 857 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
434 858
435 eval qq{ 859 eval qq{
436 sub $urxvt::term::proxy::AUTOLOAD { 860 sub $AUTOLOAD {
437 my \$proxy = shift; 861 my \$proxy = shift;
438 \$proxy->{term}->$1 (\@_) 862 \$proxy->{term}->$1 (\@_)
439 } 863 }
440 1 864 1
441 } or die "FATAL: unable to compile method forwarder: $@"; 865 } or die "FATAL: unable to compile method forwarder: $@";
442 866
443 goto &$urxvt::term::proxy::AUTOLOAD; 867 goto &$AUTOLOAD;
444} 868}
869
870sub DESTROY {
871 # nop
872}
873
874# urxvt::destroy_hook (basically a cheap Guard:: implementation)
875
876sub urxvt::destroy_hook::DESTROY {
877 ${$_[0]}->();
878}
879
880sub urxvt::destroy_hook(&) {
881 bless \shift, urxvt::destroy_hook::
882}
883
884=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
885
886Dynamically enable the given hooks (named without the C<on_> prefix) for
887this extension, replacing any hook previously installed via C<enable> in
888this extension.
889
890This is useful when you want to overwrite time-critical hooks only
891temporarily.
892
893To install additional callbacks for the same hook, you can use the C<on>
894method of the C<urxvt::term> class.
895
896=item $self->disable ($hook_name[, $hook_name..])
897
898Dynamically disable the given hooks.
899
900=cut
901
902sub enable {
903 my ($self, %hook) = @_;
904 my $pkg = $self->{_pkg};
905
906 while (my ($name, $cb) = each %hook) {
907 my $htype = $HOOKTYPE{uc $name};
908 defined $htype
909 or Carp::croak "unsupported hook type '$name'";
910
911 $self->set_should_invoke ($htype, +1)
912 unless exists $self->{term}{_hook}[$htype]{$pkg};
913
914 $self->{term}{_hook}[$htype]{$pkg} = $cb;
915 }
916}
917
918sub disable {
919 my ($self, @hook) = @_;
920 my $pkg = $self->{_pkg};
921
922 for my $name (@hook) {
923 my $htype = $HOOKTYPE{uc $name};
924 defined $htype
925 or Carp::croak "unsupported hook type '$name'";
926
927 $self->set_should_invoke ($htype, -1)
928 if delete $self->{term}{_hook}[$htype]{$pkg};
929 }
930}
931
932=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
933
934Similar to the C<enable> enable, but installs additional callbacks for
935the given hook(s) (that is, it doesn't replace existing callbacks), and
936returns a guard object. When the guard object is destroyed the callbacks
937are disabled again.
938
939=cut
940
941sub urxvt::extension::on_disable::DESTROY {
942 my $disable = shift;
943
944 my $term = delete $disable->{""};
945
946 while (my ($htype, $id) = each %$disable) {
947 delete $term->{_hook}[$htype]{$id};
948 $term->set_should_invoke ($htype, -1);
949 }
950}
951
952sub on {
953 my ($self, %hook) = @_;
954
955 my $term = $self->{term};
956
957 my %disable = ( "" => $term );
958
959 while (my ($name, $cb) = each %hook) {
960 my $htype = $HOOKTYPE{uc $name};
961 defined $htype
962 or Carp::croak "unsupported hook type '$name'";
963
964 $term->set_should_invoke ($htype, +1);
965 $term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
966 = sub { shift; $cb->($self, @_) }; # very ugly indeed
967 }
968
969 bless \%disable, "urxvt::extension::on_disable"
970}
971
972=item $self->bind_action ($hotkey, $action)
973
974=item $self->x_resource ($pattern)
975
976=item $self->x_resource_boolean ($pattern)
977
978These methods support an additional C<%> prefix for C<$action> or
979C<$pattern> when called on an extension object, compared to the
980C<urxvt::term> methods of the same name - see the description of these
981methods in the C<urxvt::term> class for details.
982
983=cut
984
985sub bind_action {
986 my ($self, $hotkey, $action) = @_;
987 $action =~ s/^%:/$_[0]{_name}:/;
988 $self->{term}->bind_action ($hotkey, $action)
989}
990
991sub x_resource {
992 my ($self, $name) = @_;
993 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
994 $self->{term}->x_resource ($name)
995}
996
997sub x_resource_boolean {
998 my ($self, $name) = @_;
999 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
1000 $self->{term}->x_resource_boolean ($name)
1001}
1002
1003=back
1004
1005=cut
1006
1007package urxvt::anyevent;
1008
1009=head2 The C<urxvt::anyevent> Class
1010
1011The sole purpose of this class is to deliver an interface to the
1012C<AnyEvent> module - any module using it will work inside urxvt without
1013further programming. The only exception is that you cannot wait on
1014condition variables, but non-blocking condvar use is ok.
1015
1016In practical terms this means is that you cannot use blocking APIs, but
1017the non-blocking variant should work.
1018
1019=cut
1020
1021our $VERSION = '5.23';
1022
1023$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
1024push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
1025
1026sub timer {
1027 my ($class, %arg) = @_;
1028
1029 my $cb = $arg{cb};
1030
1031 urxvt::timer
1032 ->new
1033 ->after ($arg{after}, $arg{interval})
1034 ->cb ($arg{interval} ? $cb : sub {
1035 $_[0]->stop; # need to cancel manually
1036 $cb->();
1037 })
1038}
1039
1040sub io {
1041 my ($class, %arg) = @_;
1042
1043 my $cb = $arg{cb};
1044 my $fd = fileno $arg{fh};
1045 defined $fd or $fd = $arg{fh};
1046
1047 bless [$arg{fh}, urxvt::iow
1048 ->new
1049 ->fd ($fd)
1050 ->events (($arg{poll} =~ /r/ ? 1 : 0)
1051 | ($arg{poll} =~ /w/ ? 2 : 0))
1052 ->start
1053 ->cb ($cb)
1054 ], urxvt::anyevent::
1055}
1056
1057sub idle {
1058 my ($class, %arg) = @_;
1059
1060 my $cb = $arg{cb};
1061
1062 urxvt::iw
1063 ->new
1064 ->start
1065 ->cb ($cb)
1066}
1067
1068sub child {
1069 my ($class, %arg) = @_;
1070
1071 my $cb = $arg{cb};
1072
1073 urxvt::pw
1074 ->new
1075 ->start ($arg{pid})
1076 ->cb (sub {
1077 $_[0]->stop; # need to cancel manually
1078 $cb->($_[0]->rpid, $_[0]->rstatus);
1079 })
1080}
1081
1082sub DESTROY {
1083 $_[0][1]->stop;
1084}
1085
1086# only needed for AnyEvent < 6 compatibility
1087sub one_event {
1088 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
1089}
1090
1091package urxvt::term;
445 1092
446=head2 The C<urxvt::term> Class 1093=head2 The C<urxvt::term> Class
447 1094
448=over 4 1095=over 4
1096
1097=cut
1098
1099# find on_xxx subs in the package and register them
1100# as hooks
1101sub register_package {
1102 my ($self, $pkg, $argv) = @_;
1103
1104 no strict 'refs';
1105
1106 urxvt::verbose 6, "register package $pkg to $self";
1107
1108 @{"$pkg\::ISA"} = urxvt::term::extension::;
1109
1110 my $proxy = bless {
1111 _pkg => $pkg,
1112 _name => ${"$pkg\::_NAME"}, # hackish
1113 argv => $argv,
1114 }, $pkg;
1115 Scalar::Util::weaken ($proxy->{term} = $self);
1116
1117 $self->{_pkg}{$pkg} = $proxy;
1118
1119 for my $name (@HOOKNAME) {
1120 if (my $ref = $pkg->can ("on_" . lc $name)) {
1121 $proxy->enable ($name => $ref);
1122 }
1123 }
1124}
1125
1126sub perl_libdirs {
1127 map { split /:/ }
1128 $_[0]->resource ("perl_lib"),
1129 $ENV{URXVT_PERL_LIB},
1130 "$ENV{HOME}/.urxvt/ext",
1131 "$LIBDIR/perl"
1132}
1133
1134# scan for available extensions and collect their metadata
1135sub scan_extensions {
1136 my ($self) = @_;
1137
1138 return if exists $self->{meta};
1139
1140 my @urxvtdirs = perl_libdirs $self;
1141# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
1142
1143 $self->{meta} = \my %meta;
1144
1145 # first gather extensions
1146
1147 my $gather = sub {
1148 my ($dir, $core) = @_;
1149
1150 opendir my $fh, $dir
1151 or return;
1152
1153 for my $ext (readdir $fh) {
1154 $ext !~ /^\./
1155 or next;
1156
1157 open my $fh, "<", "$dir/$ext"
1158 or next;
1159
1160 -f $fh
1161 or next;
1162
1163 $ext =~ s/\.uext$// or $core
1164 or next;
1165
1166 my %ext = (dir => $dir);
1167
1168 while (<$fh>) {
1169 if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
1170 my ($pattern, $type, $desc) = split /:/, $1;
1171 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1172 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1173 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1174 } else {
1175 $ext{resource}{$pattern} = [$ext, $type, $desc];
1176 }
1177 } elsif (/^\s*(?:#|$)/) {
1178 # skip other comments and empty lines
1179 } else {
1180 last; # stop parsing on first non-empty non-comment line
1181 }
1182 }
1183
1184 $meta{ext}{$ext} = \%ext;
1185 }
1186 };
1187
1188# $gather->($_, 0) for @cpandirs;
1189 $gather->($_, 1) for @urxvtdirs;
1190
1191 # and now merge resources
1192
1193 $meta{resource} = \my %resource;
1194
1195 while (my ($k, $v) = each %{ $meta{ext} }) {
1196 #TODO: should check for extensions overriding each other
1197 %resource = (%resource, %{ $v->{resource} });
1198 }
1199}
1200
1201=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1202
1203Creates a new terminal, very similar as if you had started it with system
1204C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1205hash which defines the environment of the new terminal.
1206
1207Croaks (and probably outputs an error message) if the new instance
1208couldn't be created. Returns C<undef> if the new instance didn't
1209initialise perl, and the terminal object otherwise. The C<init> and
1210C<start> hooks will be called before this call returns, and are free to
1211refer to global data (which is race free).
1212
1213=cut
1214
1215sub new {
1216 my ($class, $env, @args) = @_;
1217
1218 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1219 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1220
1221 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1222}
1223
1224=item $term->destroy
1225
1226Destroy the terminal object (close the window, free resources
1227etc.). Please note that urxvt will not exit as long as any event
1228watchers (timers, io watchers) are still active.
1229
1230=item $term->exec_async ($cmd[, @args])
1231
1232Works like the combination of the C<fork>/C<exec> builtins, which executes
1233("starts") programs in the background. This function takes care of setting
1234the user environment before exec'ing the command (e.g. C<PATH>) and should
1235be preferred over explicit calls to C<exec> or C<system>.
1236
1237Returns the pid of the subprocess or C<undef> on error.
1238
1239=cut
1240
1241sub exec_async {
1242 my $self = shift;
1243
1244 my $pid = fork;
1245
1246 return $pid
1247 if !defined $pid or $pid;
1248
1249 %ENV = %{ $self->env };
1250
1251 exec @_;
1252 urxvt::_exit 255;
1253}
1254
1255=item $isset = $term->option ($optval[, $set])
1256
1257Returns true if the option specified by C<$optval> is enabled, and
1258optionally change it. All option values are stored by name in the hash
1259C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
1260
1261Here is a likely non-exhaustive list of option names, please see the
1262source file F</src/optinc.h> to see the actual list:
1263
1264 borderLess buffered console cursorBlink cursorUnderline hold iconic
1265 insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
1266 mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
1267 pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
1268 scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
1269 secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
1270 urgentOnBell utmpInhibit visualBell
449 1271
450=item $value = $term->resource ($name[, $newval]) 1272=item $value = $term->resource ($name[, $newval])
451 1273
452Returns the current resource value associated with a given name and 1274Returns the current resource value associated with a given name and
453optionally sets a new value. Setting values is most useful in the C<init> 1275optionally sets a new value. Setting values is most useful in the C<init>
462likely change). 1284likely change).
463 1285
464Please note that resource strings will currently only be freed when the 1286Please note that resource strings will currently only be freed when the
465terminal is destroyed, so changing options frequently will eat memory. 1287terminal is destroyed, so changing options frequently will eat memory.
466 1288
467Here is a a likely non-exhaustive list of resource names, not all of which 1289Here is a likely non-exhaustive list of resource names, not all of which
468are supported in every build, please see the source to see the actual 1290are supported in every build, please see the source file F</src/rsinc.h>
469list: 1291to see the actual list:
470 1292
471 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1293 answerbackstring backgroundPixmap backspace_key blurradius
472 borderLess color cursorBlink cursorUnderline cutchars delete_key 1294 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
473 display_name embed ext_bwidth fade font geometry hold iconName 1295 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
474 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1296 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1297 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
475 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1298 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
476 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1299 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
477 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1300 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
478 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1301 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
479 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1302 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
480 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1303 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
481 shade term_name title transparent transparent_all tripleclickwords 1304 secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
1305 term_name title transient_for transparent tripleclickwords urgentOnBell
482 utmpInhibit visualBell 1306 utmpInhibit visualBell
483 1307
484=cut 1308=cut
485 1309
486sub urxvt::term::resource($$;$) { 1310sub resource($$;$) {
487 my ($self, $name) = (shift, shift); 1311 my ($self, $name) = (shift, shift);
488 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1312 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
489 goto &urxvt::term::_resource; 1313 goto &urxvt::term::_resource
490} 1314}
491 1315
1316=item $value = $term->x_resource ($pattern)
1317
1318Returns the X-Resource for the given pattern, excluding the program or
1319class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1320same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1321resource with that pattern exists.
1322
1323Extensions that define extra resources also need to call this method
1324to access their values.
1325
1326If the method is called on an extension object (basically, from an
1327extension), then the special prefix C<%.> will be replaced by the name of
1328the extension and a dot, and the lone string C<%> will be replaced by the
1329extension name itself. This makes it possible to code extensions so you
1330can rename them and get a new set of resources without having to change
1331the actual code.
1332
1333This method should only be called during the C<on_start> hook, as there is
1334only one resource database per display, and later invocations might return
1335the wrong resources.
1336
1337=item $value = $term->x_resource_boolean ($pattern)
1338
1339Like C<x_resource>, above, but interprets the string value as a boolean
1340and returns C<1> for true values, C<0> for false values and C<undef> if
1341the resource or option isn't specified.
1342
1343You should always use this method to parse boolean resources.
1344
1345=cut
1346
1347sub x_resource_boolean {
1348 my $res = &x_resource;
1349
1350 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1351}
1352
1353=item $action = $term->lookup_keysym ($keysym, $state)
1354
1355Returns the action bound to key combination C<($keysym, $state)>,
1356if a binding for it exists, and C<undef> otherwise.
1357
1358=item $success = $term->bind_action ($key, $action)
1359
1360Adds a key binding exactly as specified via a C<keysym> resource. See the
1361C<keysym> resource in the urxvt(1) manpage.
1362
1363To add default bindings for actions, an extension should call C<<
1364->bind_action >> in its C<init> hook for every such binding. Doing it
1365in the C<init> hook allows users to override or remove the binding
1366again.
1367
1368Example: the C<searchable-scrollback> by default binds itself
1369on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1370$term->bind_action >>.
1371
1372 sub init {
1373 my ($self) = @_;
1374
1375 $self->bind_action ("M-s" => "%:start");
1376 }
1377
492=item $rend = $term->screen_rstyle ([$new_rstyle]) 1378=item $rend = $term->rstyle ([$new_rstyle])
493 1379
494Return and optionally change the current rendition. Text thta is output by 1380Return and optionally change the current rendition. Text that is output by
495the temrianl application will use this style. 1381the terminal application will use this style.
496 1382
497=item ($row, $col) = $term->screen_cur ([$row, $col]) 1383=item ($row, $col) = $term->screen_cur ([$row, $col])
498 1384
499Return the current coordinates of the text cursor position and optionally 1385Return the current coordinates of the text cursor position and optionally
500set it (which is usually bad as applications don't expect that). 1386set it (which is usually bad as applications don't expect that).
503 1389
504=item ($row, $col) = $term->selection_beg ([$row, $col]) 1390=item ($row, $col) = $term->selection_beg ([$row, $col])
505 1391
506=item ($row, $col) = $term->selection_end ([$row, $col]) 1392=item ($row, $col) = $term->selection_end ([$row, $col])
507 1393
508Return the current values of the selection mark, begin or end positions, 1394Return the current values of the selection mark, begin or end positions.
509and optionally set them to new values.
510 1395
1396When arguments are given, then the selection coordinates are set to
1397C<$row> and C<$col>, and the selection screen is set to the current
1398screen.
1399
1400=item $screen = $term->selection_screen ([$screen])
1401
1402Returns the current selection screen, and then optionally sets it.
1403
1404=item $term->selection_make ($eventtime[, $rectangular])
1405
1406Tries to make a selection as set by C<selection_beg> and
1407C<selection_end>. If C<$rectangular> is true (default: false), a
1408rectangular selection will be made. This is the preferred function to make
1409a selection.
1410
511=item $success = $term->selection_grab ($eventtime) 1411=item $success = $term->selection_grab ($eventtime[, $clipboard])
512 1412
513Try to request the primary selection from the server (for example, as set 1413Try to acquire ownership of the primary (clipboard if C<$clipboard> is
514by the next method). 1414true) selection from the server. The corresponding text can be set
1415with the next method. No visual feedback will be given. This function
1416is mostly useful from within C<on_sel_grab> hooks.
515 1417
516=item $oldtext = $term->selection ([$newtext]) 1418=item $oldtext = $term->selection ([$newtext, $clipboard])
517 1419
518Return the current selection text and optionally replace it by C<$newtext>. 1420Return the current selection (clipboard if C<$clipboard> is true) text
1421and optionally replace it by C<$newtext>.
519 1422
1423=item $term->selection_clear ([$clipboard])
1424
1425Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
1426
520#=item $term->overlay ($x, $y, $text) 1427=item $term->overlay_simple ($x, $y, $text)
521# 1428
522#Create a simple multi-line overlay box. See the next method for details. 1429Create a simple multi-line overlay box. See the next method for details.
523# 1430
524#=cut 1431=cut
525 1432
526sub urxvt::term::scr_overlay { 1433sub overlay_simple {
527die;
528 my ($self, $x, $y, $text) = @_; 1434 my ($self, $x, $y, $text) = @_;
529 1435
530 my @lines = split /\n/, $text; 1436 my @lines = split /\n/, $text;
531 1437
532 my $w = 0; 1438 my $w = List::Util::max map $self->strwidth ($_), @lines;
533 for (map $self->strwidth ($_), @lines) {
534 $w = $_ if $w < $_;
535 }
536 1439
537 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1440 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
538 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1441 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
1442
1443 $overlay
539} 1444}
540 1445
541=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1446=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
542 1447
543Create a new (empty) overlay at the given position with the given 1448Create a new (empty) overlay at the given position with the given
555 1460
556The methods currently supported on C<urxvt::overlay> objects are: 1461The methods currently supported on C<urxvt::overlay> objects are:
557 1462
558=over 4 1463=over 4
559 1464
560=item $overlay->set ($x, $y, $text, $rend) 1465=item $overlay->set ($x, $y, $text[, $rend])
561 1466
562Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts 1467Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
563text in rxvt-unicode's special encoding and an array of rendition values 1468text in rxvt-unicode's special encoding and an array of rendition values
564at a specific position inside the overlay. 1469at a specific position inside the overlay.
565 1470
1471If C<$rend> is missing, then the rendition will not be changed.
1472
566=item $overlay->hide 1473=item $overlay->hide
567 1474
568If visible, hide the overlay, but do not destroy it. 1475If visible, hide the overlay, but do not destroy it.
569 1476
570=item $overlay->show 1477=item $overlay->show
571 1478
572If hidden, display the overlay again. 1479If hidden, display the overlay again.
573 1480
574=back 1481=back
575 1482
1483=item $popup = $term->popup ($event)
1484
1485Creates a new C<urxvt::popup> object that implements a popup menu. The
1486C<$event> I<must> be the event causing the menu to pop up (a button event,
1487currently).
1488
1489=cut
1490
1491sub popup {
1492 my ($self, $event) = @_;
1493
1494 $self->grab ($event->{time}, 1)
1495 or return;
1496
1497 my $popup = bless {
1498 term => $self,
1499 event => $event,
1500 }, urxvt::popup::;
1501
1502 Scalar::Util::weaken $popup->{term};
1503
1504 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
1505 Scalar::Util::weaken $self->{_destroy}{$popup};
1506
1507 $popup
1508}
1509
576=item $cellwidth = $term->strwidth $string 1510=item $cellwidth = $term->strwidth ($string)
577 1511
578Returns the number of screen-cells this string would need. Correctly 1512Returns the number of screen-cells this string would need. Correctly
579accounts for wide and combining characters. 1513accounts for wide and combining characters.
580 1514
581=item $octets = $term->locale_encode $string 1515=item $octets = $term->locale_encode ($string)
582 1516
583Convert the given text string into the corresponding locale encoding. 1517Convert the given text string into the corresponding locale encoding.
584 1518
585=item $string = $term->locale_decode $octets 1519=item $string = $term->locale_decode ($octets)
586 1520
587Convert the given locale-encoded octets into a perl string. 1521Convert the given locale-encoded octets into a perl string.
588 1522
1523=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1524
1525XORs the rendition values in the given span with the provided value
1526(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1527refresh hooks to provide effects similar to the selection.
1528
1529=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1530
1531Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1532whitespace will additionally be xored with the C<$rstyle2>, which defaults
1533to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1534it instead. Both styles I<MUST NOT> contain font styles.
1535
1536=item $term->scr_bell
1537
1538Ring the bell!
1539
1540=item $term->scr_add_lines ($string)
1541
1542Write the given text string to the screen, as if output by the application
1543running inside the terminal. It may not contain command sequences (escape
1544codes - see C<cmd_parse> for that), but is free to use line feeds,
1545carriage returns and tabs. The string is a normal text string, not in
1546locale-dependent encoding.
1547
1548Normally its not a good idea to use this function, as programs might be
1549confused by changes in cursor position or scrolling. Its useful inside a
1550C<on_add_lines> hook, though.
1551
1552=item $term->scr_change_screen ($screen)
1553
1554Switch to given screen - 0 primary, 1 secondary.
1555
1556=item $term->cmd_parse ($octets)
1557
1558Similar to C<scr_add_lines>, but the argument must be in the
1559locale-specific encoding of the terminal and can contain command sequences
1560(escape codes) that will be interpreted.
1561
589=item $term->tt_write ($octets) 1562=item $term->tt_write ($octets)
590 1563
591Write the octets given in C<$data> to the tty (i.e. as program input). To 1564Write the octets given in C<$octets> to the tty (i.e. as user input
1565to the program, see C<cmd_parse> for the opposite direction). To pass
592pass characters instead of octets, you should convert your strings first 1566characters instead of octets, you should convert your strings first to the
593to the locale-specific encoding using C<< $term->locale_encode >>. 1567locale-specific encoding using C<< $term->locale_encode >>.
594 1568
1569=item $term->tt_write_user_input ($octets)
1570
1571Like C<tt_write>, but should be used when writing strings in response to
1572the user pressing a key, to invoke the additional actions requested by
1573the user for that case (C<tt_write> doesn't do that).
1574
1575The typical use case would be inside C<on_action> hooks.
1576
1577=item $term->tt_paste ($octets)
1578
1579Write the octets given in C<$octets> to the tty as a paste, converting NL to
1580CR and bracketing the data with control sequences if bracketed paste mode
1581is set.
1582
1583=item $old_events = $term->pty_ev_events ([$new_events])
1584
1585Replaces the event mask of the pty watcher by the given event mask. Can
1586be used to suppress input and output handling to the pty/tty. See the
1587description of C<< urxvt::timer->events >>. Make sure to always restore
1588the previous value.
1589
1590=item $fd = $term->pty_fd
1591
1592Returns the master file descriptor for the pty in use, or C<-1> if no pty
1593is used.
1594
1595=item $windowid = $term->parent
1596
1597Return the window id of the toplevel window.
1598
595=item $window_width = $term->width 1599=item $windowid = $term->vt
596 1600
1601Return the window id of the terminal window.
1602
1603=item $term->vt_emask_add ($x_event_mask)
1604
1605Adds the specified events to the vt event mask. Useful e.g. when you want
1606to receive pointer events all the times:
1607
1608 $term->vt_emask_add (urxvt::PointerMotionMask);
1609
1610=item $term->set_urgency ($set)
1611
1612Enable/disable the urgency hint on the toplevel window.
1613
1614=item $term->focus_in
1615
1616=item $term->focus_out
1617
1618=item $term->key_press ($state, $keycode[, $time])
1619
1620=item $term->key_release ($state, $keycode[, $time])
1621
1622Deliver various fake events to to terminal.
1623
1624=item $window_width = $term->width ([$new_value])
1625
597=item $window_height = $term->height 1626=item $window_height = $term->height ([$new_value])
598 1627
599=item $font_width = $term->fwidth 1628=item $font_width = $term->fwidth ([$new_value])
600 1629
601=item $font_height = $term->fheight 1630=item $font_height = $term->fheight ([$new_value])
602 1631
603=item $font_ascent = $term->fbase 1632=item $font_ascent = $term->fbase ([$new_value])
604 1633
605=item $terminal_rows = $term->nrow 1634=item $terminal_rows = $term->nrow ([$new_value])
606 1635
607=item $terminal_columns = $term->ncol 1636=item $terminal_columns = $term->ncol ([$new_value])
608 1637
609=item $has_focus = $term->focus 1638=item $has_focus = $term->focus ([$new_value])
610 1639
611=item $is_mapped = $term->mapped 1640=item $is_mapped = $term->mapped ([$new_value])
612 1641
613=item $max_scrollback = $term->saveLines 1642=item $max_scrollback = $term->saveLines ([$new_value])
614 1643
615=item $nrow_plus_saveLines = $term->total_rows 1644=item $nrow_plus_saveLines = $term->total_rows ([$new_value])
616 1645
617=item $lines_in_scrollback = $term->nsaved 1646=item $topmost_scrollback_row = $term->top_row ([$new_value])
618 1647
619Return various integers describing terminal characteristics. 1648Return various integers describing terminal characteristics. If an
1649argument is given, changes the value and returns the previous one.
1650
1651=item $x_display = $term->display_id
1652
1653Return the DISPLAY used by rxvt-unicode.
1654
1655=item $lc_ctype = $term->locale
1656
1657Returns the LC_CTYPE category string used by this rxvt-unicode.
1658
1659=item $env = $term->env
1660
1661Returns a copy of the environment in effect for the terminal as a hashref
1662similar to C<\%ENV>.
1663
1664=item @envv = $term->envv
1665
1666Returns the environment as array of strings of the form C<VAR=VALUE>.
1667
1668=item @argv = $term->argv
1669
1670Return the argument vector as this terminal, similar to @ARGV, but
1671includes the program name as first element.
1672
1673=cut
1674
1675sub env {
1676 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1677}
1678
1679=item $modifiermask = $term->ModLevel3Mask
1680
1681=item $modifiermask = $term->ModMetaMask
1682
1683=item $modifiermask = $term->ModNumLockMask
1684
1685Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1686AltGr), the meta key (often Alt) and the num lock key, if applicable.
1687
1688=item $screen = $term->current_screen
1689
1690Returns the currently displayed screen (0 primary, 1 secondary).
1691
1692=item $cursor_is_hidden = $term->hidden_cursor
1693
1694Returns whether the cursor is currently hidden or not.
620 1695
621=item $view_start = $term->view_start ([$newvalue]) 1696=item $view_start = $term->view_start ([$newvalue])
622 1697
623Returns the negative row number of the topmost line. Minimum value is 1698Returns the row number of the topmost displayed line. Maximum value is
624C<0>, which displays the normal terminal contents. Larger values scroll 1699C<0>, which displays the normal terminal contents. Lower values scroll
625this many lines into the scrollback buffer. 1700this many lines into the scrollback buffer.
626 1701
627=item $term->want_refresh 1702=item $term->want_refresh
628 1703
629Requests a screen refresh. At the next opportunity, rxvt-unicode will 1704Requests a screen refresh. At the next opportunity, rxvt-unicode will
630compare the on-screen display with its stored representation. If they 1705compare the on-screen display with its stored representation. If they
631differ, it redraws the differences. 1706differ, it redraws the differences.
632 1707
633Used after changing terminal contents to display them. 1708Used after changing terminal contents to display them.
634 1709
1710=item $term->refresh_check
1711
1712Checks if a refresh has been requested and, if so, schedules one.
1713
635=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1714=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
636 1715
637Returns the text of the entire row with number C<$row_number>. Row C<0> 1716Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
638is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 1717is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
639terminal line. The scrollback buffer starts at line C<-1> and extends to
640line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line 1718terminal line. Nothing will be returned if a nonexistent line
641is requested. 1719is requested.
642 1720
643If C<$new_text> is specified, it will replace characters in the current 1721If C<$new_text> is specified, it will replace characters in the current
644line, starting at column C<$start_col> (default C<0>), which is useful 1722line, starting at column C<$start_col> (default C<0>), which is useful
645to replace only parts of a line. The font index in the rendition will 1723to replace only parts of a line. The font index in the rendition will
646automatically be updated. 1724automatically be updated.
647 1725
648C<$text> is in a special encoding: tabs and wide characters that use more 1726C<$text> is in a special encoding: tabs and wide characters that use more
649than one cell when displayed are padded with urxvt::NOCHAR characters 1727than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
650(C<chr 65535>). Characters with combining characters and other characters 1728characters. Characters with combining characters and other characters that
651that do not fit into the normal tetx encoding will be replaced with 1729do not fit into the normal text encoding will be replaced with characters
652characters in the private use area. 1730in the private use area.
653 1731
654You have to obey this encoding when changing text. The advantage is 1732You have to obey this encoding when changing text. The advantage is
655that C<substr> and similar functions work on screen cells and not on 1733that C<substr> and similar functions work on screen cells and not on
656characters. 1734characters.
657 1735
687about the logical line that row C<$row_number> is part of. It supports the 1765about the logical line that row C<$row_number> is part of. It supports the
688following methods: 1766following methods:
689 1767
690=over 4 1768=over 4
691 1769
692=item $text = $line->t 1770=item $text = $line->t ([$new_text])
693 1771
694Returns the full text of the line, similar to C<ROW_t> 1772Returns or replaces the full text of the line, similar to C<ROW_t>
695 1773
696=item $rend = $line->r 1774=item $rend = $line->r ([$new_rend])
697 1775
698Returns the full rendition array of the line, similar to C<ROW_r> 1776Returns or replaces the full rendition array of the line, similar to C<ROW_r>
699 1777
700=item $length = $line->l 1778=item $length = $line->l
701 1779
702Returns the length of the line in cells, similar to C<ROW_l>. 1780Returns the length of the line in cells, similar to C<ROW_l>.
703 1781
708Return the row number of the first/last row of the line, respectively. 1786Return the row number of the first/last row of the line, respectively.
709 1787
710=item $offset = $line->offset_of ($row, $col) 1788=item $offset = $line->offset_of ($row, $col)
711 1789
712Returns the character offset of the given row|col pair within the logical 1790Returns the character offset of the given row|col pair within the logical
713line. 1791line. Works for rows outside the line, too, and returns corresponding
1792offsets outside the string.
714 1793
715=item ($row, $col) = $line->coord_of ($offset) 1794=item ($row, $col) = $line->coord_of ($offset)
716 1795
717Translates a string offset into terminal coordinates again. 1796Translates a string offset into terminal coordinates again.
718 1797
719=back 1798=back
720 1799
721=cut 1800=cut
722 1801
723sub urxvt::term::line { 1802sub line {
724 my ($self, $row) = @_; 1803 my ($self, $row) = @_;
725 1804
726 my $maxrow = $self->nrow - 1; 1805 my $maxrow = $self->nrow - 1;
727 1806
728 my ($beg, $end) = ($row, $row); 1807 my ($beg, $end) = ($row, $row);
732 1811
733 bless { 1812 bless {
734 term => $self, 1813 term => $self,
735 beg => $beg, 1814 beg => $beg,
736 end => $end, 1815 end => $end,
1816 ncol => $self->ncol,
737 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 1817 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
738 }, urxvt::line:: 1818 }, urxvt::line::
739} 1819}
740 1820
741sub urxvt::line::t { 1821sub urxvt::line::t {
742 my ($self) = @_; 1822 my ($self) = @_;
743 1823
1824 if (@_ > 1) {
1825 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1826 for $self->{beg} .. $self->{end};
1827 }
1828
1829 defined wantarray &&
744 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1830 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
745 0, $self->{len} 1831 0, $self->{len}
746} 1832}
747 1833
748sub urxvt::line::r { 1834sub urxvt::line::r {
749 my ($self) = @_; 1835 my ($self) = @_;
750 1836
1837 if (@_ > 1) {
1838 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1839 for $self->{beg} .. $self->{end};
1840 }
1841
1842 if (defined wantarray) {
751 my $rend = [ 1843 my $rend = [
752 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1844 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
753 ]; 1845 ];
754 $#$rend = $self->{len} - 1; 1846 $#$rend = $self->{len} - 1;
755 $rend 1847 return $rend;
1848 }
1849
1850 ()
756} 1851}
757 1852
758sub urxvt::line::beg { $_[0]{beg} } 1853sub urxvt::line::beg { $_[0]{beg} }
759sub urxvt::line::end { $_[0]{end} } 1854sub urxvt::line::end { $_[0]{end} }
760sub urxvt::line::l { $_[0]{len} } 1855sub urxvt::line::l { $_[0]{len} }
761 1856
762sub urxvt::line::offset_of { 1857sub urxvt::line::offset_of {
763 my ($self, $row, $col) = @_; 1858 my ($self, $row, $col) = @_;
764 1859
765 ($row - $self->{beg}) * $self->{term}->ncol + $col 1860 ($row - $self->{beg}) * $self->{ncol} + $col
766} 1861}
767 1862
768sub urxvt::line::coord_of { 1863sub urxvt::line::coord_of {
769 my ($self, $offset) = @_; 1864 my ($self, $offset) = @_;
770 1865
771 use integer; 1866 use integer;
772 1867
773 ( 1868 (
774 $offset / $self->{term}->ncol + $self->{beg}, 1869 $offset / $self->{ncol} + $self->{beg},
775 $offset % $self->{term}->ncol 1870 $offset % $self->{ncol}
776 ) 1871 )
777} 1872}
778 1873
779=item ($row, $col) = $line->coord_of ($offset)
780=item $text = $term->special_encode $string 1874=item $text = $term->special_encode $string
781 1875
782Converts a perl string into the special encoding used by rxvt-unicode, 1876Converts a perl string into the special encoding used by rxvt-unicode,
783where one character corresponds to one screen cell. See 1877where one character corresponds to one screen cell. See
784C<< $term->ROW_t >> for details. 1878C<< $term->ROW_t >> for details.
785 1879
786=item $string = $term->special_decode $text 1880=item $string = $term->special_decode $text
787 1881
788Converts rxvt-unicodes text reprsentation into a perl string. See 1882Converts rxvt-unicodes text representation into a perl string. See
789C<< $term->ROW_t >> for details. 1883C<< $term->ROW_t >> for details.
790 1884
1885=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1886
1887=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1888
1889Register/unregister a synchronous button grab. See the XGrabButton
1890manpage.
1891
1892=item $success = $term->grab ($eventtime[, $sync])
1893
1894Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1895synchronous (C<$sync> is true). Also remembers the grab timestamp.
1896
1897=item $term->allow_events_async
1898
1899Calls XAllowEvents with AsyncBoth for the most recent grab.
1900
1901=item $term->allow_events_sync
1902
1903Calls XAllowEvents with SyncBoth for the most recent grab.
1904
1905=item $term->allow_events_replay
1906
1907Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1908recent grab.
1909
1910=item $term->ungrab
1911
1912Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1913evaluation errors, as it is better to lose the grab in the error case as
1914the session.
1915
1916=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1917
1918=item $atom_name = $term->XGetAtomName ($atom)
1919
1920=item @atoms = $term->XListProperties ($window)
1921
1922=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1923
1924=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
1925
1926=item $term->XDeleteProperty ($window, $property)
1927
1928=item $window = $term->DefaultRootWindow
1929
1930=item $term->XReparentWindow ($window, $parent, [$x, $y])
1931
1932=item $term->XMapWindow ($window)
1933
1934=item $term->XUnmapWindow ($window)
1935
1936=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1937
1938=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1939
1940=item $term->XChangeInput ($window, $add_events[, $del_events])
1941
1942=item $keysym = $term->XStringToKeysym ($string)
1943
1944=item $string = $term->XKeysymToString ($keysym)
1945
1946Various X or X-related functions. The C<$term> object only serves as
1947the source of the display, otherwise those functions map more-or-less
1948directly onto the X functions of the same name.
1949
791=back 1950=back
1951
1952=cut
1953
1954package urxvt::popup;
1955
1956=head2 The C<urxvt::popup> Class
1957
1958=over 4
1959
1960=cut
1961
1962sub add_item {
1963 my ($self, $item) = @_;
1964
1965 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1966 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1967 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1968
1969 $item->{render} ||= sub { $_[0]{text} };
1970
1971 push @{ $self->{item} }, $item;
1972}
1973
1974=item $popup->add_title ($title)
1975
1976Adds a non-clickable title to the popup.
1977
1978=cut
1979
1980sub add_title {
1981 my ($self, $title) = @_;
1982
1983 $self->add_item ({
1984 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1985 text => $title,
1986 activate => sub { },
1987 });
1988}
1989
1990=item $popup->add_separator ([$sepchr])
1991
1992Creates a separator, optionally using the character given as C<$sepchr>.
1993
1994=cut
1995
1996sub add_separator {
1997 my ($self, $sep) = @_;
1998
1999 $sep ||= "=";
2000
2001 $self->add_item ({
2002 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
2003 text => "",
2004 render => sub { $sep x $self->{term}->ncol },
2005 activate => sub { },
2006 });
2007}
2008
2009=item $popup->add_button ($text, $cb)
2010
2011Adds a clickable button to the popup. C<$cb> is called whenever it is
2012selected.
2013
2014=cut
2015
2016sub add_button {
2017 my ($self, $text, $cb) = @_;
2018
2019 $self->add_item ({ type => "button", text => $text, activate => $cb});
2020}
2021
2022=item $popup->add_toggle ($text, $initial_value, $cb)
2023
2024Adds a toggle/checkbox item to the popup. The callback gets called
2025whenever it gets toggled, with a boolean indicating its new value as its
2026first argument.
2027
2028=cut
2029
2030sub add_toggle {
2031 my ($self, $text, $value, $cb) = @_;
2032
2033 my $item; $item = {
2034 type => "button",
2035 text => " $text",
2036 value => $value,
2037 render => sub { ($_[0]{value} ? "* " : " ") . $text },
2038 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
2039 };
2040
2041 $self->add_item ($item);
2042}
2043
2044=item $popup->show
2045
2046Displays the popup (which is initially hidden).
2047
2048=cut
2049
2050sub show {
2051 my ($self) = @_;
2052
2053 local $urxvt::popup::self = $self;
2054
2055 my $env = $self->{term}->env;
2056 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
2057 delete $env->{LC_ALL};
2058 $env->{LC_CTYPE} = $self->{term}->locale;
2059
2060 my $term = urxvt::term->new (
2061 $env, "popup",
2062 "--perl-lib" => "", "--perl-ext-common" => "",
2063 "-pty-fd" => -1, "-sl" => 0,
2064 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
2065 "--transient-for" => $self->{term}->parent,
2066 "-display" => $self->{term}->display_id,
2067 "-pe" => "urxvt-popup",
2068 ) or die "unable to create popup window\n";
2069
2070 unless (delete $term->{urxvt_popup_init_done}) {
2071 $term->ungrab;
2072 $term->destroy;
2073 die "unable to initialise popup window\n";
2074 }
2075}
2076
2077sub DESTROY {
2078 my ($self) = @_;
2079
2080 delete $self->{term}{_destroy}{$self};
2081 $self->{term}->ungrab;
2082}
2083
2084=back
2085
2086=cut
2087
2088package urxvt::watcher;
792 2089
793=head2 The C<urxvt::timer> Class 2090=head2 The C<urxvt::timer> Class
794 2091
795This class implements timer watchers/events. Time is represented as a 2092This class implements timer watchers/events. Time is represented as a
796fractional number of seconds since the epoch. Example: 2093fractional number of seconds since the epoch. Example:
800 ->new 2097 ->new
801 ->interval (1) 2098 ->interval (1)
802 ->cb (sub { 2099 ->cb (sub {
803 $term->{overlay}->set (0, 0, 2100 $term->{overlay}->set (0, 0,
804 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); 2101 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
805 }); 2102 });
806 2103
807=over 4 2104=over 4
808 2105
809=item $timer = new urxvt::timer 2106=item $timer = new urxvt::timer
810 2107
813 2110
814=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 2111=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
815 2112
816Set the callback to be called when the timer triggers. 2113Set the callback to be called when the timer triggers.
817 2114
818=item $tstamp = $timer->at
819
820Return the time this watcher will fire next.
821
822=item $timer = $timer->set ($tstamp) 2115=item $timer = $timer->set ($tstamp[, $interval])
823 2116
824Set the time the event is generated to $tstamp. 2117Set the time the event is generated to $tstamp (and optionally specifies a
2118new $interval).
825 2119
826=item $timer = $timer->interval ($interval) 2120=item $timer = $timer->interval ($interval)
827 2121
828Normally (and when C<$interval> is C<0>), the timer will automatically 2122By default (and when C<$interval> is C<0>), the timer will automatically
829stop after it has fired once. If C<$interval> is non-zero, then the timer 2123stop after it has fired once. If C<$interval> is non-zero, then the timer
830is automatically rescheduled at the given intervals. 2124is automatically rescheduled at the given intervals.
831 2125
832=item $timer = $timer->start 2126=item $timer = $timer->start
833 2127
834Start the timer. 2128Start the timer.
835 2129
836=item $timer = $timer->start ($tstamp) 2130=item $timer = $timer->start ($tstamp[, $interval])
837 2131
838Set the event trigger time to C<$tstamp> and start the timer. 2132Set the event trigger time to C<$tstamp> and start the timer. Optionally
2133also replaces the interval.
2134
2135=item $timer = $timer->after ($delay[, $interval])
2136
2137Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
839 2138
840=item $timer = $timer->stop 2139=item $timer = $timer->stop
841 2140
842Stop the timer. 2141Stop the timer.
843 2142
849 2148
850 $term->{socket} = ... 2149 $term->{socket} = ...
851 $term->{iow} = urxvt::iow 2150 $term->{iow} = urxvt::iow
852 ->new 2151 ->new
853 ->fd (fileno $term->{socket}) 2152 ->fd (fileno $term->{socket})
854 ->events (1) # wait for read data 2153 ->events (urxvt::EV_READ)
855 ->start 2154 ->start
856 ->cb (sub { 2155 ->cb (sub {
857 my ($iow, $revents) = @_; 2156 my ($iow, $revents) = @_;
858 # $revents must be 1 here, no need to check 2157 # $revents must be 1 here, no need to check
859 sysread $term->{socket}, my $buf, 8192 2158 sysread $term->{socket}, my $buf, 8192
872Set the callback to be called when io events are triggered. C<$reventmask> 2171Set the callback to be called when io events are triggered. C<$reventmask>
873is a bitset as described in the C<events> method. 2172is a bitset as described in the C<events> method.
874 2173
875=item $iow = $iow->fd ($fd) 2174=item $iow = $iow->fd ($fd)
876 2175
877Set the filedescriptor (not handle) to watch. 2176Set the file descriptor (not handle) to watch.
878 2177
879=item $iow = $iow->events ($eventmask) 2178=item $iow = $iow->events ($eventmask)
880 2179
881Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 2180Set the event mask to watch. The only allowed values are
882data, Bit #1 (value C<2>) enables watching for write data. 2181C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
2182together, or C<urxvt::EV_NONE>.
883 2183
884=item $iow = $iow->start 2184=item $iow = $iow->start
885 2185
886Start watching for requested events on the given handle. 2186Start watching for requested events on the given handle.
887 2187
888=item $iow = $iow->stop 2188=item $iow = $iow->stop
889 2189
890Stop watching for events on the given filehandle. 2190Stop watching for events on the given file handle.
2191
2192=back
2193
2194=head2 The C<urxvt::iw> Class
2195
2196This class implements idle watchers, that get called automatically when
2197the process is idle. They should return as fast as possible, after doing
2198some useful work.
2199
2200=over 4
2201
2202=item $iw = new urxvt::iw
2203
2204Create a new idle watcher object in stopped state.
2205
2206=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2207
2208Set the callback to be called when the watcher triggers.
2209
2210=item $timer = $timer->start
2211
2212Start the watcher.
2213
2214=item $timer = $timer->stop
2215
2216Stop the watcher.
2217
2218=back
2219
2220=head2 The C<urxvt::pw> Class
2221
2222This class implements process watchers. They create an event whenever a
2223process exits, after which they stop automatically.
2224
2225 my $pid = fork;
2226 ...
2227 $term->{pw} = urxvt::pw
2228 ->new
2229 ->start ($pid)
2230 ->cb (sub {
2231 my ($pw, $exit_status) = @_;
2232 ...
2233 });
2234
2235=over 4
2236
2237=item $pw = new urxvt::pw
2238
2239Create a new process watcher in stopped state.
2240
2241=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2242
2243Set the callback to be called when the timer triggers.
2244
2245=item $pw = $timer->start ($pid)
2246
2247Tells the watcher to start watching for process C<$pid>.
2248
2249=item $pw = $pw->stop
2250
2251Stop the watcher.
891 2252
892=back 2253=back
893 2254
894=head1 ENVIRONMENT 2255=head1 ENVIRONMENT
895 2256
898This variable controls the verbosity level of the perl extension. Higher 2259This variable controls the verbosity level of the perl extension. Higher
899numbers indicate more verbose output. 2260numbers indicate more verbose output.
900 2261
901=over 4 2262=over 4
902 2263
903=item =0 - only fatal messages 2264=item == 0 - fatal messages
904 2265
905=item =3 - script loading and management 2266=item >= 3 - script loading and management
906 2267
907=item =10 - all events received 2268=item >=10 - all called hooks
2269
2270=item >=11 - hook return values
908 2271
909=back 2272=back
910 2273
911=head1 AUTHOR 2274=head1 AUTHOR
912 2275
913 Marc Lehmann <pcg@goof.com> 2276 Marc Lehmann <schmorp@schmorp.de>
914 http://software.schmorp.de/pkg/rxvt-unicode 2277 http://software.schmorp.de/pkg/rxvt-unicode
915 2278
916=cut 2279=cut
917 2280
9181 22811
2282
2283# vim: sw=3:

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