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Revision 1.68 by root, Mon Jan 9 20:00:31 2006 UTC vs.
Revision 1.98 by root, Tue Jan 17 17:01:54 2006 UTC

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 @@RXVT_NAME@@d, 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 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40=over 4 40=over 4
41 41
42=item selection (enabled by default) 42=item selection (enabled by default)
43 43
44Intelligent selection. This extension tries to be more intelligent when 44(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 45when the user extends selections (double-click and further clicks). Right
46urls and complete shell-quoted arguments, which is very convenient, too, 46now, it tries to select words, urls and complete shell-quoted
47if your F<ls> supports C<--quoting-style=shell>. 47arguments, which is very convenient, too, if your F<ls> supports
48C<--quoting-style=shell>.
48 49
49It also offers the following bindable event: 50A double-click usually selects the word under the cursor, further clicks
51will enlarge the selection.
52
53The selection works by trying to match a number of regexes and displaying
54them in increasing order of length. You can add your own regexes by
55specifying resources of the form:
56
57 URxvt.selection.pattern-0: perl-regex
58 URxvt.selection.pattern-1: perl-regex
59 ...
60
61The index number (0, 1...) must not have any holes, and each regex must
62contain at least one pair of capturing parentheses, which will be used for
63the match. For example, the followign adds a regex that matches everything
64between two vertical bars:
65
66 URxvt.selection.pattern-0: \\|([^|]+)\\|
67
68You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end.
70
71This extension also offers following bindable keyboard commands:
50 72
51=over 4 73=over 4
52 74
53=item rot13 75=item rot13
54 76
64runtime. 86runtime.
65 87
66=item selection-popup (enabled by default) 88=item selection-popup (enabled by default)
67 89
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection 90Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action. 91text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content.
70 93
71=item digital-clock 94=item searchable-scrollback<hotkey> (enabled by default)
72 95
73Displays a digital clock using the built-in overlay. 96Adds regex search functionality to the scrollback buffer, triggered
97by a hotkey (default: C<M-s>). While in search mode, normal terminal
98input/output is suspended and a regex is displayed at the bottom of the
99screen.
100
101Inputting characters appends them to the regex and continues incremental
102search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
103search upwards/downwards in the scrollback buffer, C<End> jumps to the
104bottom. C<Escape> leaves search mode and returns to the point where search
105was started, while C<Enter> or C<Return> stay at the current position and
106additionally stores the first match in the current line into the primary
107selection.
108
109=item selection-autotransform
110
111This selection allows you to do automatic transforms on a selection
112whenever a selection is made.
113
114It works by specifying perl snippets (most useful is a single C<s///>
115operator) that modify C<$_> as resources:
116
117 URxvt.selection-autotransform.0: transform
118 URxvt.selection-autotransform.1: transform
119 ...
120
121For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>:
124
125 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126
127And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor:
129
130 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/
131
132Of course, this can be modified to suit your needs and your editor :)
133
134To expand the example above to typical perl error messages ("XXX at
135FILENAME line YYY."), you need a slightly more elaborate solution:
136
137 URxvt.selection.pattern-0: ( at .*? line \\d+\\.)
138 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/
139
140The first line tells the selection code to treat the unchanging part of
141every error message as a selection pattern, and the second line transforms
142the message into vi commands to load the file.
74 143
75=item mark-urls 144=item mark-urls
76 145
77Uses per-line display filtering (C<on_line_update>) to underline urls. 146Uses per-line display filtering (C<on_line_update>) to underline urls and
147make them clickable. When middle-clicked, the program specified in the
148resource C<urlLauncher> (default C<x-www-browser>) will be started with
149the URL as first argument.
78 150
79=item block-graphics-to-ascii 151=item block-graphics-to-ascii
80 152
81A not very useful example of filtering all text output to the terminal, 153A not very useful example of filtering all text output to the terminal,
82by replacing all line-drawing characters (U+2500 .. U+259F) by a 154by replacing all line-drawing characters (U+2500 .. U+259F) by a
83similar-looking ascii character. 155similar-looking ascii character.
84 156
157=item digital-clock
158
159Displays a digital clock using the built-in overlay.
160
85=item example-refresh-hooks 161=item example-refresh-hooks
86 162
87Displays a very simple digital clock in the upper right corner of the 163Displays a very simple digital clock in the upper right corner of the
88window. Illustrates overwriting the refresh callbacks to create your own 164window. Illustrates overwriting the refresh callbacks to create your own
89overlays or changes. 165overlays or changes.
90 166
167=item selection-pastebin
168
169This is a little rarely useful extension that Uploads the selection as
170textfile to a remote site (or does other things).
171
172It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
173i.e.
174
175 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
176
177Pressing this combination runs a command with C<%> replaced by the name of
178the textfile. This command can be set via a resource:
179
180 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
181
182And the default is likely not useful to anybody but the few people around
183here :)
184
185The name of the textfile is the hex encoded md5 sum of the selection, so
186the same content should lead to the same filename.
187
188After a successful upload the selection will be replaced by the text given
189in the C<selection-pastebin-url> resource (again, the % is the placeholder
190for the filename):
191
192 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
193
91=back 194=back
195
196=head1 API DOCUMENTATION
92 197
93=head2 General API Considerations 198=head2 General API Considerations
94 199
95All objects (such as terminals, time watchers etc.) are typical 200All objects (such as terminals, time watchers etc.) are typical
96reference-to-hash objects. The hash can be used to store anything you 201reference-to-hash objects. The hash can be used to store anything you
109=over 4 214=over 4
110 215
111=item $text 216=item $text
112 217
113Rxvt-unicodes special way of encoding text, where one "unicode" character 218Rxvt-unicodes special way of encoding text, where one "unicode" character
114always represents one screen cell. See L<row_t> for a discussion of this format. 219always represents one screen cell. See L<ROW_t> for a discussion of this format.
115 220
116=item $string 221=item $string
117 222
118A perl text string, with an emphasis on I<text>. It can store all unicode 223A perl text string, with an emphasis on I<text>. It can store all unicode
119characters and is to be distinguished with text encoded in a specific 224characters and is to be distinguished with text encoded in a specific
124Either binary data or - more common - a text string encoded in a 229Either binary data or - more common - a text string encoded in a
125locale-specific way. 230locale-specific way.
126 231
127=back 232=back
128 233
234=head2 Extension Objects
235
236Very perl extension is a perl class. A separate perl object is created
237for each terminal and each extension and passed as the first parameter to
238hooks. So extensions can use their C<$self> object without having to think
239about other extensions, with the exception of methods and members that
240begin with an underscore character C<_>: these are reserved for internal
241use.
242
243Although it isn't a C<urxvt::term> object, you can call all methods of the
244C<urxvt::term> class on this object.
245
246It has the following methods and data members:
247
248=over 4
249
250=item $urxvt_term = $self->{term}
251
252Returns the C<urxvt::term> object associated with this instance of the
253extension. This member I<must not> be changed in any way.
254
255=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
256
257Dynamically enable the given hooks (named without the C<on_> prefix) for
258this extension, replacing any previous hook. This is useful when you want
259to overwrite time-critical hooks only temporarily.
260
261=item $self->disable ($hook_name[, $hook_name..])
262
263Dynamically disable the given hooks.
264
265=back
266
129=head2 Hooks 267=head2 Hooks
130 268
131The following subroutines can be declared in extension files, and will be 269The following subroutines can be declared in extension files, and will be
132called whenever the relevant event happens. 270called whenever the relevant event happens.
133 271
134The first argument passed to them is an object private to each terminal 272The first argument passed to them is an extension oject as described in
135and extension package. You can call all C<urxvt::term> methods on it, but 273the in the C<Extension Objects> section.
136its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
137object that is shared between all packages is stored in the C<term>
138member. It is, however, blessed intot he package of the extension script,
139so for all practical purposes you can treat an extension script as a class.
140 274
141All of them must return a boolean value. If it is true, then the event 275B<All> of these hooks must return a boolean value. If it is true, then the
142counts as being I<consumed>, and the invocation of other hooks is skipped, 276event counts as being I<consumed>, and the invocation of other hooks is
143and the relevant action might not be carried out by the C++ code. 277skipped, and the relevant action might not be carried out by the C++ code.
144 278
145When in doubt, return a false value (preferably C<()>). 279I<< When in doubt, return a false value (preferably C<()>). >>
146 280
147=over 4 281=over 4
148 282
149=item on_init $term 283=item on_init $term
150 284
185=item on_sel_extend $term 319=item on_sel_extend $term
186 320
187Called whenever the user tries to extend the selection (e.g. with a double 321Called whenever the user tries to extend the selection (e.g. with a double
188click) and is either supposed to return false (normal operation), or 322click) and is either supposed to return false (normal operation), or
189should extend the selection itelf and return true to suppress the built-in 323should extend the selection itelf and return true to suppress the built-in
190processing. 324processing. This can happen multiple times, as long as the callback
325returns true, it will be called on every further click by the user and is
326supposed to enlarge the selection more and more, if possible.
191 327
192See the F<selection> example extension. 328See the F<selection> example extension.
193 329
194=item on_view_change $term, $offset 330=item on_view_change $term, $offset
195 331
226can filter/change and output the text yourself by returning a true value 362can filter/change and output the text yourself by returning a true value
227and calling C<< $term->scr_add_lines >> yourself. Please note that this 363and calling C<< $term->scr_add_lines >> yourself. Please note that this
228might be very slow, however, as your hook is called for B<all> text being 364might be very slow, however, as your hook is called for B<all> text being
229output. 365output.
230 366
367=item on_tt_write $term, $octets
368
369Called whenever some data is written to the tty/pty and can be used to
370suppress or filter tty input.
371
231=item on_line_update $term, $row 372=item on_line_update $term, $row
232 373
233Called whenever a line was updated or changed. Can be used to filter 374Called whenever a line was updated or changed. Can be used to filter
234screen output (e.g. underline urls or other useless stuff). Only lines 375screen output (e.g. underline urls or other useless stuff). Only lines
235that are being shown will be filtered, and, due to performance reasons, 376that are being shown will be filtered, and, due to performance reasons,
257 398
258Called whenever the user presses a key combination that has a 399Called whenever the user presses a key combination that has a
259C<perl:string> action bound to it (see description of the B<keysym> 400C<perl:string> action bound to it (see description of the B<keysym>
260resource in the @@RXVT_NAME@@(1) manpage). 401resource in the @@RXVT_NAME@@(1) manpage).
261 402
403=item on_x_event $term, $event
404
405Called on every X event received on the vt window (and possibly other
406windows). Should only be used as a last resort. Most event structure
407members are not passed.
408
262=item on_focus_in $term 409=item on_focus_in $term
263 410
264Called whenever the window gets the keyboard focus, before rxvt-unicode 411Called whenever the window gets the keyboard focus, before rxvt-unicode
265does focus in processing. 412does focus in processing.
266 413
267=item on_focus_out $term 414=item on_focus_out $term
268 415
269Called wheneever the window loses keyboard focus, before rxvt-unicode does 416Called wheneever the window loses keyboard focus, before rxvt-unicode does
270focus out processing. 417focus out processing.
271 418
272=item on_key_press $term, $event, $octets 419=item on_key_press $term, $event, $keysym, $octets
273 420
274=item on_key_release $term, $event 421=item on_key_release $term, $event, $keysym
275 422
276=item on_button_press $term, $event 423=item on_button_press $term, $event
277 424
278=item on_button_release $term, $event 425=item on_button_release $term, $event
279 426
295 442
296subwindow. 443subwindow.
297 444
298=back 445=back
299 446
447=cut
448
449package urxvt;
450
451use utf8;
452use strict;
453use Carp ();
454use Scalar::Util ();
455use List::Util ();
456
457our $VERSION = 1;
458our $TERM;
459our @HOOKNAME;
460our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
461our %OPTION;
462
463our $LIBDIR;
464our $RESNAME;
465our $RESCLASS;
466our $RXVTNAME;
467
300=head2 Variables in the C<urxvt> Package 468=head2 Variables in the C<urxvt> Package
301 469
302=over 4 470=over 4
471
472=item $urxvt::LIBDIR
473
474The rxvt-unicode library directory, where, among other things, the perl
475modules and scripts are stored.
476
477=item $urxvt::RESCLASS, $urxvt::RESCLASS
478
479The resource class and name rxvt-unicode uses to look up X resources.
480
481=item $urxvt::RXVTNAME
482
483The basename of the installed binaries, usually C<urxvt>.
303 484
304=item $urxvt::TERM 485=item $urxvt::TERM
305 486
306The current terminal. This variable stores the current C<urxvt::term> 487The current terminal. This variable stores the current C<urxvt::term>
307object, whenever a callback/hook is executing. 488object, whenever a callback/hook is executing.
309=back 490=back
310 491
311=head2 Functions in the C<urxvt> Package 492=head2 Functions in the C<urxvt> Package
312 493
313=over 4 494=over 4
314
315=item $term = new urxvt [arg...]
316
317Creates a new terminal, very similar as if you had started it with
318C<system $binfile, arg...>. Croaks (and probably outputs an error message)
319if the new instance couldn't be created. Returns C<undef> if the new
320instance didn't initialise perl, and the terminal object otherwise. The
321C<init> and C<start> hooks will be called during the call.
322 495
323=item urxvt::fatal $errormessage 496=item urxvt::fatal $errormessage
324 497
325Fatally aborts execution with the given error message. Avoid at all 498Fatally aborts execution with the given error message. Avoid at all
326costs! The only time this is acceptable is when the terminal process 499costs! The only time this is acceptable is when the terminal process
333that calls this function. 506that calls this function.
334 507
335Using this function has the advantage that its output ends up in the 508Using this function has the advantage that its output ends up in the
336correct place, e.g. on stderr of the connecting urxvtc client. 509correct place, e.g. on stderr of the connecting urxvtc client.
337 510
338=item $is_safe = urxvt::safe 511Messages have a size limit of 1023 bytes currently.
339
340Returns true when it is safe to do potentially unsafe things, such as
341evaluating perl code specified by the user. This is true when urxvt was
342started setuid or setgid.
343 512
344=item $time = urxvt::NOW 513=item $time = urxvt::NOW
345 514
346Returns the "current time" (as per the event loop). 515Returns the "current time" (as per the event loop).
347 516
348=item urxvt::CurrentTime 517=item urxvt::CurrentTime
349 518
350=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 519=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
351Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 520Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
352Button4Mask, Button5Mask, AnyModifier 521Button4Mask, Button5Mask, AnyModifier
522
523=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
524ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
525PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
526Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
527KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
528ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
529FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
530
531=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
532EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
533GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
534UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
535ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
536CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
537SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
353 538
354Various constants for use in X calls and event processing. 539Various constants for use in X calls and event processing.
355 540
356=back 541=back
357 542
386 571
387=item $background = urxvt::GET_BASEBG $rend 572=item $background = urxvt::GET_BASEBG $rend
388 573
389Return the foreground/background colour index, respectively. 574Return the foreground/background colour index, respectively.
390 575
391=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 576=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
392 577
393=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 578=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
394 579
395Replace the foreground/background colour in the rendition mask with the 580Replace the foreground/background colour in the rendition mask with the
396specified one. 581specified one.
397 582
398=item $value = urxvt::GET_CUSTOM ($rend) 583=item $value = urxvt::GET_CUSTOM $rend
399 584
400Return the "custom" value: Every rendition has 5 bits for use by 585Return the "custom" value: Every rendition has 5 bits for use by
401extensions. They can be set and changed as you like and are initially 586extensions. They can be set and changed as you like and are initially
402zero. 587zero.
403 588
404=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 589=item $rend = urxvt::SET_CUSTOM $rend, $new_value
405 590
406Change the custom value. 591Change the custom value.
407 592
408=back 593=back
409 594
410=cut 595=cut
411
412package urxvt;
413
414use utf8;
415use strict;
416use Scalar::Util ();
417use List::Util ();
418
419our $VERSION = 1;
420our $TERM;
421our @HOOKNAME;
422our %OPTION;
423our $LIBDIR;
424 596
425BEGIN { 597BEGIN {
426 urxvt->bootstrap; 598 urxvt->bootstrap;
427 599
428 # overwrite perl's warn 600 # overwrite perl's warn
431 $msg .= "\n" 603 $msg .= "\n"
432 unless $msg =~ /\n$/; 604 unless $msg =~ /\n$/;
433 urxvt::warn ($msg); 605 urxvt::warn ($msg);
434 }; 606 };
435 607
608 # %ENV is the original startup environment
436 delete $ENV{IFS}; 609 delete $ENV{IFS};
437 delete $ENV{CDPATH}; 610 delete $ENV{CDPATH};
438 delete $ENV{BASH_ENV}; 611 delete $ENV{BASH_ENV};
439 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin"; 612 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
440} 613}
441 614
442my @hook_count;
443my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 615my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
444 616
445sub verbose { 617sub verbose {
446 my ($level, $msg) = @_; 618 my ($level, $msg) = @_;
447 warn "$msg\n" if $level <= $verbosity; 619 warn "$msg\n" if $level <= $verbosity;
460 verbose 3, "loading extension '$path' into package '$pkg'"; 632 verbose 3, "loading extension '$path' into package '$pkg'";
461 633
462 open my $fh, "<:raw", $path 634 open my $fh, "<:raw", $path
463 or die "$path: $!"; 635 or die "$path: $!";
464 636
637 my $source =
465 my $source = untaint "package $pkg; use strict; use utf8;\n" 638 "package $pkg; use strict; use utf8;\n"
466 . "use base urxvt::term::proxy::;\n" 639 . "use base urxvt::term::extension::;\n"
467 . "#line 1 \"$path\"\n{\n" 640 . "#line 1 \"$path\"\n{\n"
468 . (do { local $/; <$fh> }) 641 . (do { local $/; <$fh> })
469 . "\n};\n1"; 642 . "\n};\n1";
470 643
644 eval $source
471 eval $source or die "$path: $@"; 645 or die "$path: $@";
472 646
473 $pkg 647 $pkg
474 } 648 }
475} 649}
476 650
486 660
487 my %ext_arg; 661 my %ext_arg;
488 662
489 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 663 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
490 if ($_ eq "default") { 664 if ($_ eq "default") {
491 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup); 665 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
492 } elsif (/^-(.*)$/) { 666 } elsif (/^-(.*)$/) {
493 delete $ext_arg{$1}; 667 delete $ext_arg{$1};
494 } elsif (/^([^<]+)<(.*)>$/) { 668 } elsif (/^([^<]+)<(.*)>$/) {
495 push @{ $ext_arg{$1} }, $2; 669 push @{ $ext_arg{$1} }, $2;
496 } else { 670 } else {
527 if ($@) { 701 if ($@) {
528 $TERM->ungrab; # better to lose the grab than the session 702 $TERM->ungrab; # better to lose the grab than the session
529 warn $@; 703 warn $@;
530 } 704 }
531 } 705 }
706
707 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
708 if $verbosity >= 11;
532 } 709 }
533 710
534 if ($htype == 1) { # DESTROY 711 if ($htype == 1) { # DESTROY
535 # remove hooks if unused
536 if (my $hook = $TERM->{_hook}) {
537 for my $htype (0..$#$hook) {
538 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
539 or set_should_invoke $htype, 0;
540 }
541 }
542
543 # clear package objects 712 # clear package objects
544 %$_ = () for values %{ $TERM->{_pkg} }; 713 %$_ = () for values %{ $TERM->{_pkg} };
545 714
546 # clear package 715 # clear package
547 %$TERM = (); 716 %$TERM = ();
548 } 717 }
549 718
550 $retval 719 $retval
551} 720}
552 721
553# urxvt::term::proxy 722sub exec_async(@) {
723 my $pid = fork;
554 724
555sub urxvt::term::proxy::AUTOLOAD { 725 return
556 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 726 if !defined $pid or $pid;
727
728 %ENV = %{ $TERM->env };
729
730 exec @_;
731 _exit 255;
732}
733
734# urxvt::term::extension
735
736package urxvt::term::extension;
737
738sub enable {
739 my ($self, %hook) = @_;
740 my $pkg = $self->{_pkg};
741
742 while (my ($name, $cb) = each %hook) {
743 my $htype = $HOOKTYPE{uc $name};
744 defined $htype
745 or Carp::croak "unsupported hook type '$name'";
746
747 $self->set_should_invoke ($htype, +1)
748 unless exists $self->{term}{_hook}[$htype]{$pkg};
749
750 $self->{term}{_hook}[$htype]{$pkg} = $cb;
751 }
752}
753
754sub disable {
755 my ($self, @hook) = @_;
756 my $pkg = $self->{_pkg};
757
758 for my $name (@hook) {
759 my $htype = $HOOKTYPE{uc $name};
760 defined $htype
761 or Carp::croak "unsupported hook type '$name'";
762
763 $self->set_should_invoke ($htype, -1)
764 if delete $self->{term}{_hook}[$htype]{$pkg};
765 }
766}
767
768our $AUTOLOAD;
769
770sub AUTOLOAD {
771 $AUTOLOAD =~ /:([^:]+)$/
557 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 772 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
558 773
559 eval qq{ 774 eval qq{
560 sub $urxvt::term::proxy::AUTOLOAD { 775 sub $AUTOLOAD {
561 my \$proxy = shift; 776 my \$proxy = shift;
562 \$proxy->{term}->$1 (\@_) 777 \$proxy->{term}->$1 (\@_)
563 } 778 }
564 1 779 1
565 } or die "FATAL: unable to compile method forwarder: $@"; 780 } or die "FATAL: unable to compile method forwarder: $@";
566 781
567 goto &$urxvt::term::proxy::AUTOLOAD; 782 goto &$AUTOLOAD;
568} 783}
569 784
570sub urxvt::term::proxy::DESTROY { 785sub DESTROY {
571 # nop 786 # nop
572} 787}
573 788
574# urxvt::destroy_hook 789# urxvt::destroy_hook
575 790
585 800
586=head2 The C<urxvt::anyevent> Class 801=head2 The C<urxvt::anyevent> Class
587 802
588The sole purpose of this class is to deliver an interface to the 803The sole purpose of this class is to deliver an interface to the
589C<AnyEvent> module - any module using it will work inside urxvt without 804C<AnyEvent> module - any module using it will work inside urxvt without
590further work. The only exception is that you cannot wait on condition 805further programming. The only exception is that you cannot wait on
591variables, but non-blocking condvar use is ok. What this means is that you 806condition variables, but non-blocking condvar use is ok. What this means
592cannot use blocking APIs, but the non-blocking variant should work. 807is that you cannot use blocking APIs, but the non-blocking variant should
808work.
593 809
594=cut 810=cut
595 811
596our $VERSION = 1; 812our $VERSION = 1;
597 813
642 ${$_[0]}++; 858 ${$_[0]}++;
643} 859}
644 860
645sub urxvt::anyevent::condvar::wait { 861sub urxvt::anyevent::condvar::wait {
646 unless (${$_[0]}) { 862 unless (${$_[0]}) {
647 require Carp;
648 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"); 863 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
649 } 864 }
650} 865}
651 866
652package urxvt::term; 867package urxvt::term;
653 868
660# find on_xxx subs in the package and register them 875# find on_xxx subs in the package and register them
661# as hooks 876# as hooks
662sub register_package { 877sub register_package {
663 my ($self, $pkg, $argv) = @_; 878 my ($self, $pkg, $argv) = @_;
664 879
665 my $proxy = bless { argv => $argv }, $pkg; 880 my $proxy = bless {
881 _pkg => $pkg,
882 argv => $argv,
883 }, $pkg;
666 Scalar::Util::weaken ($proxy->{term} = $TERM); 884 Scalar::Util::weaken ($proxy->{term} = $self);
667 885
668 $self->{_pkg}{$pkg} = $proxy; 886 $self->{_pkg}{$pkg} = $proxy;
669 887
670 for my $htype (0.. $#HOOKNAME) { 888 for my $name (@HOOKNAME) {
671 my $name = $HOOKNAME[$htype];
672
673 my $ref = $pkg->can ("on_" . lc $name) 889 if (my $ref = $pkg->can ("on_" . lc $name)) {
674 or next; 890 $proxy->enable ($name => $ref);
675 891 }
676 $self->{_hook}[$htype]{$pkg} = $ref;
677 $hook_count[$htype]++
678 or urxvt::set_should_invoke $htype, 1;
679 } 892 }
680} 893}
681 894
895=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
896
897Creates a new terminal, very similar as if you had started it with system
898C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
899hash which defines the environment of the new terminal.
900
901Croaks (and probably outputs an error message) if the new instance
902couldn't be created. Returns C<undef> if the new instance didn't
903initialise perl, and the terminal object otherwise. The C<init> and
904C<start> hooks will be called during this call.
905
906=cut
907
908sub new {
909 my ($class, $env, @args) = @_;
910
911 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
912}
913
682=item $term->destroy 914=item $term->destroy
683 915
684Destroy the terminal object (close the window, free resources etc.). 916Destroy the terminal object (close the window, free resources
917etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
918watchers (timers, io watchers) are still active.
685 919
686=item $isset = $term->option ($optval[, $set]) 920=item $isset = $term->option ($optval[, $set])
687 921
688Returns true if the option specified by C<$optval> is enabled, and 922Returns true if the option specified by C<$optval> is enabled, and
689optionally change it. All option values are stored by name in the hash 923optionally change it. All option values are stored by name in the hash
739 my ($self, $name) = (shift, shift); 973 my ($self, $name) = (shift, shift);
740 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 974 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
741 &urxvt::term::_resource 975 &urxvt::term::_resource
742} 976}
743 977
978=item $value = $term->x_resource ($pattern)
979
980Returns the X-Resource for the given pattern, excluding the program or
981class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
982same value as used by this instance of rxvt-unicode. Returns C<undef> if no
983resource with that pattern exists.
984
985This method should only be called during the C<on_start> hook, as there is
986only one resource database per display, and later invocations might return
987the wrong resources.
988
989=item $success = $term->parse_keysym ($keysym_spec, $command_string)
990
991Adds a keymap translation exactly as specified via a resource. See the
992C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
993
744=item $rend = $term->rstyle ([$new_rstyle]) 994=item $rend = $term->rstyle ([$new_rstyle])
745 995
746Return and optionally change the current rendition. Text that is output by 996Return and optionally change the current rendition. Text that is output by
747the terminal application will use this style. 997the terminal application will use this style.
748 998
758=item ($row, $col) = $term->selection_end ([$row, $col]) 1008=item ($row, $col) = $term->selection_end ([$row, $col])
759 1009
760Return the current values of the selection mark, begin or end positions, 1010Return the current values of the selection mark, begin or end positions,
761and optionally set them to new values. 1011and optionally set them to new values.
762 1012
1013=item $term->selection_make ($eventtime[, $rectangular])
1014
1015Tries to make a selection as set by C<selection_beg> and
1016C<selection_end>. If C<$rectangular> is true (default: false), a
1017rectangular selection will be made. This is the prefered function to make
1018a selection.
1019
763=item $success = $term->selection_grab ($eventtime) 1020=item $success = $term->selection_grab ($eventtime)
764 1021
765Try to request the primary selection from the server (for example, as set 1022Try to request the primary selection text from the server (for example, as
766by the next method). 1023set by the next method). No visual feedback will be given. This function
1024is mostly useful from within C<on_sel_grab> hooks.
767 1025
768=item $oldtext = $term->selection ([$newtext]) 1026=item $oldtext = $term->selection ([$newtext])
769 1027
770Return the current selection text and optionally replace it by C<$newtext>. 1028Return the current selection text and optionally replace it by C<$newtext>.
771 1029
772#=item $term->overlay ($x, $y, $text) 1030=item $term->overlay_simple ($x, $y, $text)
773# 1031
774#Create a simple multi-line overlay box. See the next method for details. 1032Create a simple multi-line overlay box. See the next method for details.
775# 1033
776#=cut 1034=cut
777# 1035
778#sub urxvt::term::scr_overlay { 1036sub overlay_simple {
779# my ($self, $x, $y, $text) = @_; 1037 my ($self, $x, $y, $text) = @_;
780# 1038
781# my @lines = split /\n/, $text; 1039 my @lines = split /\n/, $text;
782# 1040
783# my $w = 0; 1041 my $w = List::Util::max map $self->strwidth ($_), @lines;
784# for (map $self->strwidth ($_), @lines) { 1042
785# $w = $_ if $w < $_;
786# }
787#
788# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1043 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
789# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1044 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
790#} 1045
1046 $overlay
1047}
791 1048
792=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1049=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
793 1050
794Create a new (empty) overlay at the given position with the given 1051Create a new (empty) overlay at the given position with the given
795width/height. C<$rstyle> defines the initial rendition style 1052width/height. C<$rstyle> defines the initial rendition style
862 1119
863=item $string = $term->locale_decode ($octets) 1120=item $string = $term->locale_decode ($octets)
864 1121
865Convert the given locale-encoded octets into a perl string. 1122Convert the given locale-encoded octets into a perl string.
866 1123
1124=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1125
1126XORs the rendition values in the given span with the provided value
1127(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1128refresh hooks to provide effects similar to the selection.
1129
1130=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1131
1132Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1133whitespace will additionally be xored with the C<$rstyle2>, which defaults
1134to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1135it instead. Both styles I<MUST NOT> contain font styles.
1136
1137=item $term->scr_bell
1138
1139Ring the bell!
1140
867=item $term->scr_add_lines ($string) 1141=item $term->scr_add_lines ($string)
868 1142
869Write the given text string to the screen, as if output by the application 1143Write the given text string to the screen, as if output by the application
870running inside the terminal. It may not contain command sequences (escape 1144running inside the terminal. It may not contain command sequences (escape
871codes), but is free to use line feeds, carriage returns and tabs. The 1145codes), but is free to use line feeds, carriage returns and tabs. The
885 1159
886Write the octets given in C<$data> to the tty (i.e. as program input). To 1160Write the octets given in C<$data> to the tty (i.e. as program input). To
887pass characters instead of octets, you should convert your strings first 1161pass characters instead of octets, you should convert your strings first
888to the locale-specific encoding using C<< $term->locale_encode >>. 1162to the locale-specific encoding using C<< $term->locale_encode >>.
889 1163
1164=item $old_events = $term->pty_ev_events ([$new_events])
1165
1166Replaces the event mask of the pty watcher by the given event mask. Can
1167be used to suppress input and output handling to the pty/tty. See the
1168description of C<< urxvt::timer->events >>. Make sure to always restore
1169the previous value.
1170
890=item $windowid = $term->parent 1171=item $windowid = $term->parent
891 1172
892Return the window id of the toplevel window. 1173Return the window id of the toplevel window.
893 1174
894=item $windowid = $term->vt 1175=item $windowid = $term->vt
895 1176
896Return the window id of the terminal window. 1177Return the window id of the terminal window.
897 1178
1179=item $term->vt_emask_add ($x_event_mask)
1180
1181Adds the specified events to the vt event mask. Useful e.g. when you want
1182to receive pointer events all the times:
1183
1184 $term->vt_emask_add (urxvt::PointerMotionMask);
1185
898=item $window_width = $term->width 1186=item $window_width = $term->width
899 1187
900=item $window_height = $term->height 1188=item $window_height = $term->height
901 1189
902=item $font_width = $term->fwidth 1190=item $font_width = $term->fwidth
915 1203
916=item $max_scrollback = $term->saveLines 1204=item $max_scrollback = $term->saveLines
917 1205
918=item $nrow_plus_saveLines = $term->total_rows 1206=item $nrow_plus_saveLines = $term->total_rows
919 1207
920=item $lines_in_scrollback = $term->nsaved 1208=item $topmost_scrollback_row = $term->top_row
921 1209
922Return various integers describing terminal characteristics. 1210Return various integers describing terminal characteristics.
923 1211
1212=item $x_display = $term->display_id
1213
1214Return the DISPLAY used by rxvt-unicode.
1215
924=item $lc_ctype = $term->locale 1216=item $lc_ctype = $term->locale
925 1217
926Returns the LC_CTYPE category string used by this rxvt-unicode. 1218Returns the LC_CTYPE category string used by this rxvt-unicode.
927 1219
928=item $x_display = $term->display_id 1220=item $env = $term->env
929 1221
930Return the DISPLAY used by rxvt-unicode. 1222Returns a copy of the environment in effect for the terminal as a hashref
1223similar to C<\%ENV>.
1224
1225=cut
1226
1227sub env {
1228 if (my $env = $_[0]->_env) {
1229 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1230 } else {
1231 +{ %ENV }
1232 }
1233}
931 1234
932=item $modifiermask = $term->ModLevel3Mask 1235=item $modifiermask = $term->ModLevel3Mask
933 1236
934=item $modifiermask = $term->ModMetaMask 1237=item $modifiermask = $term->ModMetaMask
935 1238
938Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1241Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
939AltGr), the meta key (often Alt) and the num lock key, if applicable. 1242AltGr), the meta key (often Alt) and the num lock key, if applicable.
940 1243
941=item $view_start = $term->view_start ([$newvalue]) 1244=item $view_start = $term->view_start ([$newvalue])
942 1245
943Returns the negative row number of the topmost line. Minimum value is 1246Returns the row number of the topmost displayed line. Maximum value is
944C<0>, which displays the normal terminal contents. Larger values scroll 1247C<0>, which displays the normal terminal contents. Lower values scroll
945this many lines into the scrollback buffer. 1248this many lines into the scrollback buffer.
946 1249
947=item $term->want_refresh 1250=item $term->want_refresh
948 1251
949Requests a screen refresh. At the next opportunity, rxvt-unicode will 1252Requests a screen refresh. At the next opportunity, rxvt-unicode will
1028Return the row number of the first/last row of the line, respectively. 1331Return the row number of the first/last row of the line, respectively.
1029 1332
1030=item $offset = $line->offset_of ($row, $col) 1333=item $offset = $line->offset_of ($row, $col)
1031 1334
1032Returns the character offset of the given row|col pair within the logical 1335Returns the character offset of the given row|col pair within the logical
1033line. 1336line. Works for rows outside the line, too, and returns corresponding
1337offsets outside the string.
1034 1338
1035=item ($row, $col) = $line->coord_of ($offset) 1339=item ($row, $col) = $line->coord_of ($offset)
1036 1340
1037Translates a string offset into terminal coordinates again. 1341Translates a string offset into terminal coordinates again.
1038 1342
1175 $item->{render} ||= sub { $_[0]{text} }; 1479 $item->{render} ||= sub { $_[0]{text} };
1176 1480
1177 push @{ $self->{item} }, $item; 1481 push @{ $self->{item} }, $item;
1178} 1482}
1179 1483
1484=item $popup->add_title ($title)
1485
1486Adds a non-clickable title to the popup.
1487
1488=cut
1489
1490sub add_title {
1491 my ($self, $title) = @_;
1492
1493 $self->add_item ({
1494 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1495 text => $title,
1496 activate => sub { },
1497 });
1498}
1499
1500=item $popup->add_separator ([$sepchr])
1501
1502Creates a separator, optionally using the character given as C<$sepchr>.
1503
1504=cut
1505
1180sub add_separator { 1506sub add_separator {
1181 my ($self, $sep) = @_; 1507 my ($self, $sep) = @_;
1182 1508
1183 $sep ||= "="; 1509 $sep ||= "=";
1184 1510
1188 render => sub { $sep x $self->{term}->ncol }, 1514 render => sub { $sep x $self->{term}->ncol },
1189 activate => sub { }, 1515 activate => sub { },
1190 }); 1516 });
1191} 1517}
1192 1518
1193sub add_title { 1519=item $popup->add_button ($text, $cb)
1194 my ($self, $title) = @_;
1195 1520
1196 $self->add_item ({ 1521Adds a clickable button to the popup. C<$cb> is called whenever it is
1197 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, 1522selected.
1198 text => $title, 1523
1199 activate => sub { }, 1524=cut
1200 });
1201}
1202 1525
1203sub add_button { 1526sub add_button {
1204 my ($self, $text, $cb) = @_; 1527 my ($self, $text, $cb) = @_;
1205 1528
1206 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1529 $self->add_item ({ type => "button", text => $text, activate => $cb});
1207} 1530}
1531
1532=item $popup->add_toggle ($text, $cb, $initial_value)
1533
1534Adds a toggle/checkbox item to the popup. Teh callback gets called
1535whenever it gets toggled, with a boolean indicating its value as its first
1536argument.
1537
1538=cut
1208 1539
1209sub add_toggle { 1540sub add_toggle {
1210 my ($self, $text, $cb, $value) = @_; 1541 my ($self, $text, $cb, $value) = @_;
1211 1542
1212 my $item; $item = { 1543 my $item; $item = {
1213 type => "button", 1544 type => "button",
1214 text => " $text", 1545 text => " $text",
1215 value => $value, 1546 value => $value,
1216 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1547 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1217 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1548 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1218 }; 1549 };
1219 1550
1220 $self->add_item ($item); 1551 $self->add_item ($item);
1221} 1552}
1553
1554=item $popup->show
1555
1556Displays the popup (which is initially hidden).
1557
1558=cut
1222 1559
1223sub show { 1560sub show {
1224 my ($self) = @_; 1561 my ($self) = @_;
1225 1562
1226 local $urxvt::popup::self = $self; 1563 local $urxvt::popup::self = $self;
1227 1564
1565 my $env = $self->{term}->env;
1566 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1567 delete $env->{LC_ALL};
1228 local $ENV{LC_ALL} = $self->{term}->locale; 1568 $env->{LC_CTYPE} = $self->{term}->locale;
1229 1569
1570 urxvt::term->new ($env, $self->{term}->resource ("name"),
1230 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1571 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1231 "--transient-for" => $self->{term}->parent, 1572 "--transient-for" => $self->{term}->parent,
1232 "-display" => $self->{term}->display_id, 1573 "-display" => $self->{term}->display_id,
1233 "-pe" => "urxvt-popup") 1574 "-pe" => "urxvt-popup")
1234 or die "unable to create popup window\n"; 1575 or die "unable to create popup window\n";
1235} 1576}
1236 1577
1237sub DESTROY { 1578sub DESTROY {
1238 my ($self) = @_; 1579 my ($self) = @_;
1239 1580
1240 delete $self->{term}{_destroy}{$self}; 1581 delete $self->{term}{_destroy}{$self};
1241 $self->{term}->ungrab; 1582 $self->{term}->ungrab;
1242} 1583}
1584
1585=back
1243 1586
1244=head2 The C<urxvt::timer> Class 1587=head2 The C<urxvt::timer> Class
1245 1588
1246This class implements timer watchers/events. Time is represented as a 1589This class implements timer watchers/events. Time is represented as a
1247fractional number of seconds since the epoch. Example: 1590fractional number of seconds since the epoch. Example:
1300 1643
1301 $term->{socket} = ... 1644 $term->{socket} = ...
1302 $term->{iow} = urxvt::iow 1645 $term->{iow} = urxvt::iow
1303 ->new 1646 ->new
1304 ->fd (fileno $term->{socket}) 1647 ->fd (fileno $term->{socket})
1305 ->events (1) # wait for read data 1648 ->events (urxvt::EVENT_READ)
1306 ->start 1649 ->start
1307 ->cb (sub { 1650 ->cb (sub {
1308 my ($iow, $revents) = @_; 1651 my ($iow, $revents) = @_;
1309 # $revents must be 1 here, no need to check 1652 # $revents must be 1 here, no need to check
1310 sysread $term->{socket}, my $buf, 8192 1653 sysread $term->{socket}, my $buf, 8192
1327 1670
1328Set the filedescriptor (not handle) to watch. 1671Set the filedescriptor (not handle) to watch.
1329 1672
1330=item $iow = $iow->events ($eventmask) 1673=item $iow = $iow->events ($eventmask)
1331 1674
1332Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1675Set the event mask to watch. The only allowed values are
1333data, Bit #1 (value C<2>) enables watching for write data. 1676C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1677together, or C<urxvt::EVENT_NONE>.
1334 1678
1335=item $iow = $iow->start 1679=item $iow = $iow->start
1336 1680
1337Start watching for requested events on the given handle. 1681Start watching for requested events on the given handle.
1338 1682
1353 1697
1354=item == 0 - fatal messages 1698=item == 0 - fatal messages
1355 1699
1356=item >= 3 - script loading and management 1700=item >= 3 - script loading and management
1357 1701
1358=item >=10 - all events received 1702=item >=10 - all called hooks
1703
1704=item >=11 - hook reutrn values
1359 1705
1360=back 1706=back
1361 1707
1362=head1 AUTHOR 1708=head1 AUTHOR
1363 1709

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