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Revision 1.92 by root, Fri Jan 13 04:59:04 2006 UTC vs.
Revision 1.131 by root, Sun Jan 29 20:51:28 2006 UTC

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
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
63the match. For example, the followign adds a regex that matches everything 67the match. For example, the followign adds a regex that matches everything
64between two vertical bars: 68between two vertical bars:
65 69
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
67 71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
68You can look at the source of the selection extension to see more 79You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 80interesting uses, such as parsing a line from beginning to end.
70 81
71This extension also offers the following bindable keyboard command: 82This extension also offers following bindable keyboard commands:
72 83
73=over 4 84=over 4
74 85
75=item rot13 86=item rot13
76 87
87 98
88=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
89 100
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 101Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 103evaluation, web-browser starting etc.), depending on content.
104
105Other extensions can extend this popup menu by pushing a code reference
106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
107popup is displayed.
108
109It's sole argument is the popup menu, which can be modified. The selection
110is in C<$_>, which can be used to decide wether to add something or not.
111It should either return nothing or a string and a code reference. The
112string will be used as button text and the code reference will be called
113when the button gets activated and should transform C<$_>.
114
115The following will add an entry C<a to b> that transforms all C<a>s in
116the selection to C<b>s, but only if the selection currently contains any
117C<a>s:
118
119 push @{ $self->{term}{selection_popup_hook} }, sub {
120 /a/ ? ("a to be" => sub { s/a/b/g }
121 : ()
122 };
93 123
94=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
95 125
96Adds regex search functionality to the scrollback buffer, triggered 126Adds regex search functionality to the scrollback buffer, triggered
97by a hotkey (default: C<M-s>). While in search mode, normal terminal 127by a hotkey (default: C<M-s>). While in search mode, normal terminal
104bottom. C<Escape> leaves search mode and returns to the point where search 134bottom. 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 135was 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 136additionally stores the first match in the current line into the primary
107selection. 137selection.
108 138
139=item readline (enabled by default)
140
141A support package that tries to make editing with readline easier. At the
142moment, it reacts to clicking with the left mouse button by trying to
143move the text cursor to this position. It does so by generating as many
144cursor-left or cursor-right keypresses as required (the this only works
145for programs that correctly support wide characters).
146
147To avoid too many false positives, this is only done when:
148
149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
162might interfere with selection creation in harmless ways.
163
109=item selection-autotransform 164=item selection-autotransform
110 165
111This selection allows you to do automatic transforms on a selection 166This selection allows you to do automatic transforms on a selection
112whenever a selection is made. 167whenever a selection is made.
113 168
120 175
121For example, the following will transform selections of the form 176For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename 177C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>: 178$word>:
124 179
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 181
127And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 183paste directly into your (vi :) editor:
129 184
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131 186
132Of course, this can be modified to suit your needs and your editor :) 187Of course, this can be modified to suit your needs and your editor :)
133 188
134To expand the example above to typical perl error messages ("XXX at 189To expand the example above to typical perl error messages ("XXX at
135FILENAME line YYY."), you need a slightly more elaborate solution: 190FILENAME line YYY."), you need a slightly more elaborate solution:
136 191
137 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
138 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
139 194
140The first line tells the selection code to treat the unchanging part of 195The first line tells the selection code to treat the unchanging part of
141every error message as a selection pattern, and the second line transforms 196every error message as a selection pattern, and the second line transforms
142the message into vi commands to load the file. 197the message into vi commands to load the file.
198
199=item tabbed
200
201This transforms the terminal into a tabbar with additional terminals, that
202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
203displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
204button per tab.
205
206Clicking a button will activate that tab. Pressing B<Shift-Left> and
207B<Shift-Right> will switch to the tab left or right of the current one,
208while B<Shift-Down> creates a new tab.
143 209
144=item mark-urls 210=item mark-urls
145 211
146Uses per-line display filtering (C<on_line_update>) to underline urls and 212Uses per-line display filtering (C<on_line_update>) to underline urls and
147make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
148resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
149the URL as first argument. 215the URL as first argument.
150 216
217=item xim-onthespot
218
219This (experimental) perl extension implements OnTheSpot editing. It does
220not work perfectly, and some input methods don't seem to work well with
221OnTheSpot editing in general, but it seems to work at leats for SCIM and
222kinput2.
223
224You enable it by specifying this extension and a preedit style of
225C<OnTheSpot>, i.e.:
226
227 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
228
229=item automove-background
230
231This is basically a one-line extension that dynamically changes the background pixmap offset
232to the window position, in effect creating the same effect as pseudo transparency with
233a custom pixmap. No scaling is supported in this mode. Exmaple:
234
235 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
236
151=item block-graphics-to-ascii 237=item block-graphics-to-ascii
152 238
153A not very useful example of filtering all text output to the terminal, 239A not very useful example of filtering all text output to the terminal,
154by replacing all line-drawing characters (U+2500 .. U+259F) by a 240by replacing all line-drawing characters (U+2500 .. U+259F) by a
155similar-looking ascii character. 241similar-looking ascii character.
156 242
157=item digital-clock 243=item digital-clock
158 244
159Displays a digital clock using the built-in overlay. 245Displays a digital clock using the built-in overlay.
246
247=item remote-clipboard
248
249Somewhat of a misnomer, this extension adds two menu entries to the
250selection popup that allows one ti run external commands to store the
251selection somewhere and fetch it again.
252
253We use it to implement a "distributed selection mechanism", which just
254means that one command uploads the file to a remote server, and another
255reads it.
256
257The commands can be set using the C<URxvt.remote-selection.store> and
258C<URxvt.remote-selection.fetch> resources. The first should read the
259selection to store from STDIN (always in UTF-8), the second should provide
260the selection data on STDOUT (also in UTF-8).
261
262The defaults (which are likely useless to you) use rsh and cat:
263
264 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
265 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
266
267=item selection-pastebin
268
269This is a little rarely useful extension that Uploads the selection as
270textfile to a remote site (or does other things). (The implementation is
271not currently secure for use in a multiuser environment as it writes to
272F</tmp> directly.).
273
274It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
275i.e.
276
277 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
278
279Pressing this combination runs a command with C<%> replaced by the name of
280the textfile. This command can be set via a resource:
281
282 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
283
284And the default is likely not useful to anybody but the few people around
285here :)
286
287The name of the textfile is the hex encoded md5 sum of the selection, so
288the same content should lead to the same filename.
289
290After a successful upload the selection will be replaced by the text given
291in the C<selection-pastebin-url> resource (again, the % is the placeholder
292for the filename):
293
294 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
160 295
161=item example-refresh-hooks 296=item example-refresh-hooks
162 297
163Displays a very simple digital clock in the upper right corner of the 298Displays a very simple digital clock in the upper right corner of the
164window. Illustrates overwriting the refresh callbacks to create your own 299window. Illustrates overwriting the refresh callbacks to create your own
243called whenever the relevant event happens. 378called whenever the relevant event happens.
244 379
245The first argument passed to them is an extension oject as described in 380The first argument passed to them is an extension oject as described in
246the in the C<Extension Objects> section. 381the in the C<Extension Objects> section.
247 382
248B<All> of these hooks must return a boolean value. If it is true, then the 383B<All> of these hooks must return a boolean value. If any of the called
249event counts as being I<consumed>, and the invocation of other hooks is 384hooks returns true, then the event counts as being I<consumed>, and the
250skipped, and the relevant action might not be carried out by the C++ code. 385relevant action might not be carried out by the C++ code.
251 386
252I<< When in doubt, return a false value (preferably C<()>). >> 387I<< When in doubt, return a false value (preferably C<()>). >>
253 388
254=over 4 389=over 4
255 390
256=item on_init $term 391=item on_init $term
257 392
258Called after a new terminal object has been initialized, but before 393Called after a new terminal object has been initialized, but before
259windows are created or the command gets run. Most methods are unsafe to 394windows are created or the command gets run. Most methods are unsafe to
260call or deliver senseless data, as terminal size and other characteristics 395call or deliver senseless data, as terminal size and other characteristics
261have not yet been determined. You can safely query and change resources, 396have not yet been determined. You can safely query and change resources
262though. 397and options, though. For many purposes the C<on_start> hook is a better
398place.
399
400=item on_start $term
401
402Called at the very end of initialisation of a new terminal, just before
403trying to map (display) the toplevel and returning to the mainloop.
404
405=item on_destroy $term
406
407Called whenever something tries to destroy terminal, when the terminal is
408still fully functional (not for long, though).
263 409
264=item on_reset $term 410=item on_reset $term
265 411
266Called after the screen is "reset" for any reason, such as resizing or 412Called after the screen is "reset" for any reason, such as resizing or
267control sequences. Here is where you can react on changes to size-related 413control sequences. Here is where you can react on changes to size-related
268variables. 414variables.
269 415
270=item on_start $term 416=item on_child_start $term, $pid
271 417
272Called at the very end of initialisation of a new terminal, just before 418Called just after the child process has been C<fork>ed.
273returning to the mainloop. 419
420=item on_child_exit $term, $status
421
422Called just after the child process has exited. C<$status> is the status
423from C<waitpid>.
274 424
275=item on_sel_make $term, $eventtime 425=item on_sel_make $term, $eventtime
276 426
277Called whenever a selection has been made by the user, but before the 427Called whenever a selection has been made by the user, but before the
278selection text is copied, so changes to the beginning, end or type of the 428selection text is copied, so changes to the beginning, end or type of the
365 515
366=item on_refresh_end $term 516=item on_refresh_end $term
367 517
368Called just after the screen gets redrawn. See C<on_refresh_begin>. 518Called just after the screen gets redrawn. See C<on_refresh_begin>.
369 519
370=item on_keyboard_command $term, $string 520=item on_user_command $term, $string
371 521
372Called whenever the user presses a key combination that has a 522Called whenever the a user-configured event is being activated (e.g. via
373C<perl:string> action bound to it (see description of the B<keysym> 523a C<perl:string> action bound to a key, see description of the B<keysym>
374resource in the @@RXVT_NAME@@(1) manpage). 524resource in the @@RXVT_NAME@@(1) manpage).
525
526The event is simply the action string. This interface is assumed to change
527slightly in the future.
375 528
376=item on_x_event $term, $event 529=item on_x_event $term, $event
377 530
378Called on every X event received on the vt window (and possibly other 531Called on every X event received on the vt window (and possibly other
379windows). Should only be used as a last resort. Most event structure 532windows). Should only be used as a last resort. Most event structure
387=item on_focus_out $term 540=item on_focus_out $term
388 541
389Called wheneever the window loses keyboard focus, before rxvt-unicode does 542Called wheneever the window loses keyboard focus, before rxvt-unicode does
390focus out processing. 543focus out processing.
391 544
545=item on_configure_notify $term, $event
546
547=item on_property_notify $term, $event
548
392=item on_key_press $term, $event, $keysym, $octets 549=item on_key_press $term, $event, $keysym, $octets
393 550
394=item on_key_release $term, $event, $keysym 551=item on_key_release $term, $event, $keysym
395 552
396=item on_button_press $term, $event 553=item on_button_press $term, $event
405 562
406Called whenever the corresponding X event is received for the terminal If 563Called whenever the corresponding X event is received for the terminal If
407the hook returns true, then the even will be ignored by rxvt-unicode. 564the hook returns true, then the even will be ignored by rxvt-unicode.
408 565
409The event is a hash with most values as named by Xlib (see the XEvent 566The event is a hash with most values as named by Xlib (see the XEvent
410manpage), with the additional members C<row> and C<col>, which are the row 567manpage), with the additional members C<row> and C<col>, which are the
411and column under the mouse cursor. 568(real, not screen-based) row and column under the mouse cursor.
412 569
413C<on_key_press> additionally receives the string rxvt-unicode would 570C<on_key_press> additionally receives the string rxvt-unicode would
414output, if any, in locale-specific encoding. 571output, if any, in locale-specific encoding.
415 572
416subwindow. 573subwindow.
574
575=item on_client_message $term, $event
576
577=item on_wm_protocols $term, $event
578
579=item on_wm_delete_window $term, $event
580
581Called when various types of ClientMessage events are received (all with
582format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
417 583
418=back 584=back
419 585
420=cut 586=cut
421 587
427use Scalar::Util (); 593use Scalar::Util ();
428use List::Util (); 594use List::Util ();
429 595
430our $VERSION = 1; 596our $VERSION = 1;
431our $TERM; 597our $TERM;
598our @TERM_INIT;
599our @TERM_EXT;
432our @HOOKNAME; 600our @HOOKNAME;
433our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 601our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
434our %OPTION; 602our %OPTION;
435 603
436our $LIBDIR; 604our $LIBDIR;
437our $RESNAME; 605our $RESNAME;
438our $RESCLASS; 606our $RESCLASS;
439our $RXVTNAME; 607our $RXVTNAME;
440 608
609our $NOCHAR = chr 0xffff;
610
441=head2 Variables in the C<urxvt> Package 611=head2 Variables in the C<urxvt> Package
442 612
443=over 4 613=over 4
444 614
445=item $urxvt::LIBDIR 615=item $urxvt::LIBDIR
457 627
458=item $urxvt::TERM 628=item $urxvt::TERM
459 629
460The current terminal. This variable stores the current C<urxvt::term> 630The current terminal. This variable stores the current C<urxvt::term>
461object, whenever a callback/hook is executing. 631object, whenever a callback/hook is executing.
632
633=item @urxvt::TERM_INIT
634
635All coderefs in this array will be called as methods of the next newly
636created C<urxvt::term> object (during the C<on_init> phase). The array
637gets cleared before the codereferences that were in it are being executed,
638so coderefs can push themselves onto it again if they so desire.
639
640This complements to the perl-eval commandline option, but gets executed
641first.
642
643=item @urxvt::TERM_EXT
644
645Works similar to C<@TERM_INIT>, but contains perl package/class names, which
646get registered as normal extensions after calling the hooks in C<@TERM_INIT>
647but before other extensions. Gets cleared just like C<@TERM_INIT>.
462 648
463=back 649=back
464 650
465=head2 Functions in the C<urxvt> Package 651=head2 Functions in the C<urxvt> Package
466 652
481Using this function has the advantage that its output ends up in the 667Using this function has the advantage that its output ends up in the
482correct place, e.g. on stderr of the connecting urxvtc client. 668correct place, e.g. on stderr of the connecting urxvtc client.
483 669
484Messages have a size limit of 1023 bytes currently. 670Messages have a size limit of 1023 bytes currently.
485 671
486=item $is_safe = urxvt::safe 672=item @terms = urxvt::termlist
487 673
488Returns true when it is safe to do potentially unsafe things, such as 674Returns all urxvt::term objects that exist in this process, regardless of
489evaluating perl code specified by the user. This is true when urxvt was 675wether they are started, being destroyed etc., so be careful. Only term
490started setuid or setgid. 676objects that have perl extensions attached will be returned (because there
677is no urxvt::term objet associated with others).
491 678
492=item $time = urxvt::NOW 679=item $time = urxvt::NOW
493 680
494Returns the "current time" (as per the event loop). 681Returns the "current time" (as per the event loop).
495 682
572=back 759=back
573 760
574=cut 761=cut
575 762
576BEGIN { 763BEGIN {
577 urxvt->bootstrap;
578
579 # overwrite perl's warn 764 # overwrite perl's warn
580 *CORE::GLOBAL::warn = sub { 765 *CORE::GLOBAL::warn = sub {
581 my $msg = join "", @_; 766 my $msg = join "", @_;
582 $msg .= "\n" 767 $msg .= "\n"
583 unless $msg =~ /\n$/; 768 unless $msg =~ /\n$/;
584 urxvt::warn ($msg); 769 urxvt::warn ($msg);
585 }; 770 };
586
587 # %ENV is the original startup environment
588 delete $ENV{IFS};
589 delete $ENV{CDPATH};
590 delete $ENV{BASH_ENV};
591 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
592} 771}
772
773no warnings 'utf8';
593 774
594my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 775my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
595 776
596sub verbose { 777sub verbose {
597 my ($level, $msg) = @_; 778 my ($level, $msg) = @_;
598 warn "$msg\n" if $level <= $verbosity; 779 warn "$msg\n" if $level <= $verbosity;
599} 780}
600 781
601my $extension_pkg = "extension0000";
602my %extension_pkg; 782my %extension_pkg;
603 783
604# load a single script into its own package, once only 784# load a single script into its own package, once only
605sub extension_package($) { 785sub extension_package($) {
606 my ($path) = @_; 786 my ($path) = @_;
607 787
608 $extension_pkg{$path} ||= do { 788 $extension_pkg{$path} ||= do {
609 my $pkg = "urxvt::" . ($extension_pkg++); 789 $path =~ /([^\/\\]+)$/;
790 my $pkg = $1;
791 $pkg =~ s/[^[:word:]]/_/g;
792 $pkg = "urxvt::ext::$pkg";
610 793
611 verbose 3, "loading extension '$path' into package '$pkg'"; 794 verbose 3, "loading extension '$path' into package '$pkg'";
612 795
613 open my $fh, "<:raw", $path 796 open my $fh, "<:raw", $path
614 or die "$path: $!"; 797 or die "$path: $!";
615 798
616 my $source = untaint 799 my $source =
617 "package $pkg; use strict; use utf8;\n" 800 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
618 . "use base urxvt::term::extension::;\n"
619 . "#line 1 \"$path\"\n{\n" 801 . "#line 1 \"$path\"\n{\n"
620 . (do { local $/; <$fh> }) 802 . (do { local $/; <$fh> })
621 . "\n};\n1"; 803 . "\n};\n1";
622 804
623 eval $source 805 eval $source
637 if ($htype == 0) { # INIT 819 if ($htype == 0) { # INIT
638 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 820 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
639 821
640 my %ext_arg; 822 my %ext_arg;
641 823
824 {
825 my @init = @TERM_INIT;
826 @TERM_INIT = ();
827 $_->($TERM) for @init;
828 my @pkg = @TERM_EXT;
829 @TERM_EXT = ();
830 $TERM->register_package ($_) for @pkg;
831 }
832
642 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 833 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
643 if ($_ eq "default") { 834 if ($_ eq "default") {
644 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 835 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
645 } elsif (/^-(.*)$/) { 836 } elsif (/^-(.*)$/) {
646 delete $ext_arg{$1}; 837 delete $ext_arg{$1};
647 } elsif (/^([^<]+)<(.*)>$/) { 838 } elsif (/^([^<]+)<(.*)>$/) {
648 push @{ $ext_arg{$1} }, $2; 839 push @{ $ext_arg{$1} }, $2;
649 } else { 840 } else {
672 if $verbosity >= 10; 863 if $verbosity >= 10;
673 864
674 keys %$cb; 865 keys %$cb;
675 866
676 while (my ($pkg, $cb) = each %$cb) { 867 while (my ($pkg, $cb) = each %$cb) {
677 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 868 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
678 and last; 869 $retval ||= $retval_;
679 870
680 if ($@) { 871 if ($@) {
681 $TERM->ungrab; # better to lose the grab than the session 872 $TERM->ungrab; # better to lose the grab than the session
682 warn $@; 873 warn $@;
683 } 874 }
694 # clear package 885 # clear package
695 %$TERM = (); 886 %$TERM = ();
696 } 887 }
697 888
698 $retval 889 $retval
699}
700
701sub exec_async(@) {
702 my $pid = fork;
703
704 return
705 if !defined $pid or $pid;
706
707 %ENV = %{ $TERM->env };
708
709 exec @_;
710 _exit 255;
711} 890}
712 891
713# urxvt::term::extension 892# urxvt::term::extension
714 893
715package urxvt::term::extension; 894package urxvt::term::extension;
854# find on_xxx subs in the package and register them 1033# find on_xxx subs in the package and register them
855# as hooks 1034# as hooks
856sub register_package { 1035sub register_package {
857 my ($self, $pkg, $argv) = @_; 1036 my ($self, $pkg, $argv) = @_;
858 1037
1038 no strict 'refs';
1039
1040 urxvt::verbose 6, "register package $pkg to $self";
1041
1042 @{"$pkg\::ISA"} = urxvt::term::extension::;
1043
859 my $proxy = bless { 1044 my $proxy = bless {
860 _pkg => $pkg, 1045 _pkg => $pkg,
861 argv => $argv, 1046 argv => $argv,
862 }, $pkg; 1047 }, $pkg;
863 Scalar::Util::weaken ($proxy->{term} = $self); 1048 Scalar::Util::weaken ($proxy->{term} = $self);
878hash which defines the environment of the new terminal. 1063hash which defines the environment of the new terminal.
879 1064
880Croaks (and probably outputs an error message) if the new instance 1065Croaks (and probably outputs an error message) if the new instance
881couldn't be created. Returns C<undef> if the new instance didn't 1066couldn't be created. Returns C<undef> if the new instance didn't
882initialise perl, and the terminal object otherwise. The C<init> and 1067initialise perl, and the terminal object otherwise. The C<init> and
883C<start> hooks will be called during this call. 1068C<start> hooks will be called before this call returns, and are free to
1069refer to global data (which is race free).
884 1070
885=cut 1071=cut
886 1072
887sub new { 1073sub new {
888 my ($class, $env, @args) = @_; 1074 my ($class, $env, @args) = @_;
889 1075
1076 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1077 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1078
890 _new ([ map "$_=$env->{$_}", keys %$env ], @args); 1079 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
891} 1080}
892 1081
893=item $term->destroy 1082=item $term->destroy
894 1083
895Destroy the terminal object (close the window, free resources 1084Destroy the terminal object (close the window, free resources
896etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1085etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
897watchers (timers, io watchers) are still active. 1086watchers (timers, io watchers) are still active.
898 1087
1088=item $term->exec_async ($cmd[, @args])
1089
1090Works like the combination of the C<fork>/C<exec> builtins, which executes
1091("starts") programs in the background. This function takes care of setting
1092the user environment before exec'ing the command (e.g. C<PATH>) and should
1093be preferred over explicit calls to C<exec> or C<system>.
1094
1095Returns the pid of the subprocess or C<undef> on error.
1096
1097=cut
1098
1099sub exec_async {
1100 my $self = shift;
1101
1102 my $pid = fork;
1103
1104 return $pid
1105 if !defined $pid or $pid;
1106
1107 %ENV = %{ $self->env };
1108
1109 exec @_;
1110 urxvt::_exit 255;
1111}
1112
899=item $isset = $term->option ($optval[, $set]) 1113=item $isset = $term->option ($optval[, $set])
900 1114
901Returns true if the option specified by C<$optval> is enabled, and 1115Returns true if the option specified by C<$optval> is enabled, and
902optionally change it. All option values are stored by name in the hash 1116optionally change it. All option values are stored by name in the hash
903C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1117C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
905Here is a a likely non-exhaustive list of option names, please see the 1119Here is a a likely non-exhaustive list of option names, please see the
906source file F</src/optinc.h> to see the actual list: 1120source file F</src/optinc.h> to see the actual list:
907 1121
908 borderLess console cursorBlink cursorUnderline hold iconic insecure 1122 borderLess console cursorBlink cursorUnderline hold iconic insecure
909 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1123 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
910 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1124 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
911 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1125 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
912 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1126 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
913 tripleclickwords utmpInhibit visualBell 1127 transparent tripleclickwords utmpInhibit visualBell
914 1128
915=item $value = $term->resource ($name[, $newval]) 1129=item $value = $term->resource ($name[, $newval])
916 1130
917Returns the current resource value associated with a given name and 1131Returns the current resource value associated with a given name and
918optionally sets a new value. Setting values is most useful in the C<init> 1132optionally sets a new value. Setting values is most useful in the C<init>
935 1149
936 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1150 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
937 borderLess color cursorBlink cursorUnderline cutchars delete_key 1151 borderLess color cursorBlink cursorUnderline cutchars delete_key
938 display_name embed ext_bwidth fade font geometry hold iconName 1152 display_name embed ext_bwidth fade font geometry hold iconName
939 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1153 imFont imLocale inputMethod insecure int_bwidth intensityStyles
940 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1154 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
941 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1155 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
942 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1156 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
943 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1157 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
944 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1158 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
945 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1159 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
946 shade term_name title transparent transparent_all tripleclickwords 1160 secondaryScreen secondaryScroll selectstyle shade term_name title
947 utmpInhibit visualBell 1161 transient_for transparent transparent_all tripleclickwords utmpInhibit
1162 visualBell
948 1163
949=cut 1164=cut
950 1165
951sub resource($$;$) { 1166sub resource($$;$) {
952 my ($self, $name) = (shift, shift); 1167 my ($self, $name) = (shift, shift);
1126 1341
1127Normally its not a good idea to use this function, as programs might be 1342Normally its not a good idea to use this function, as programs might be
1128confused by changes in cursor position or scrolling. Its useful inside a 1343confused by changes in cursor position or scrolling. Its useful inside a
1129C<on_add_lines> hook, though. 1344C<on_add_lines> hook, though.
1130 1345
1346=item $term->scr_change_screen ($screen)
1347
1348Switch to given screen - 0 primary, 1 secondary.
1349
1131=item $term->cmd_parse ($octets) 1350=item $term->cmd_parse ($octets)
1132 1351
1133Similar to C<scr_add_lines>, but the argument must be in the 1352Similar to C<scr_add_lines>, but the argument must be in the
1134locale-specific encoding of the terminal and can contain command sequences 1353locale-specific encoding of the terminal and can contain command sequences
1135(escape codes) that will be interpreted. 1354(escape codes) that will be interpreted.
1145Replaces the event mask of the pty watcher by the given event mask. Can 1364Replaces the event mask of the pty watcher by the given event mask. Can
1146be used to suppress input and output handling to the pty/tty. See the 1365be used to suppress input and output handling to the pty/tty. See the
1147description of C<< urxvt::timer->events >>. Make sure to always restore 1366description of C<< urxvt::timer->events >>. Make sure to always restore
1148the previous value. 1367the previous value.
1149 1368
1369=item $fd = $term->pty_fd
1370
1371Returns the master file descriptor for the pty in use, or C<-1> if no pty
1372is used.
1373
1150=item $windowid = $term->parent 1374=item $windowid = $term->parent
1151 1375
1152Return the window id of the toplevel window. 1376Return the window id of the toplevel window.
1153 1377
1154=item $windowid = $term->vt 1378=item $windowid = $term->vt
1182 1406
1183=item $max_scrollback = $term->saveLines 1407=item $max_scrollback = $term->saveLines
1184 1408
1185=item $nrow_plus_saveLines = $term->total_rows 1409=item $nrow_plus_saveLines = $term->total_rows
1186 1410
1187=item $lines_in_scrollback = $term->nsaved 1411=item $topmost_scrollback_row = $term->top_row
1188 1412
1189Return various integers describing terminal characteristics. 1413Return various integers describing terminal characteristics.
1190 1414
1191=item $x_display = $term->display_id 1415=item $x_display = $term->display_id
1192 1416
1218=item $modifiermask = $term->ModNumLockMask 1442=item $modifiermask = $term->ModNumLockMask
1219 1443
1220Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1444Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1221AltGr), the meta key (often Alt) and the num lock key, if applicable. 1445AltGr), the meta key (often Alt) and the num lock key, if applicable.
1222 1446
1447=item $screen = $term->current_screen
1448
1449Returns the currently displayed screen (0 primary, 1 secondary).
1450
1451=item $cursor_is_hidden = $term->hidden_cursor
1452
1453Returns wether the cursor is currently hidden or not.
1454
1223=item $view_start = $term->view_start ([$newvalue]) 1455=item $view_start = $term->view_start ([$newvalue])
1224 1456
1225Returns the negative row number of the topmost line. Minimum value is 1457Returns the row number of the topmost displayed line. Maximum value is
1226C<0>, which displays the normal terminal contents. Larger values scroll 1458C<0>, which displays the normal terminal contents. Lower values scroll
1227this many lines into the scrollback buffer. 1459this many lines into the scrollback buffer.
1228 1460
1229=item $term->want_refresh 1461=item $term->want_refresh
1230 1462
1231Requests a screen refresh. At the next opportunity, rxvt-unicode will 1463Requests a screen refresh. At the next opportunity, rxvt-unicode will
1246line, starting at column C<$start_col> (default C<0>), which is useful 1478line, starting at column C<$start_col> (default C<0>), which is useful
1247to replace only parts of a line. The font index in the rendition will 1479to replace only parts of a line. The font index in the rendition will
1248automatically be updated. 1480automatically be updated.
1249 1481
1250C<$text> is in a special encoding: tabs and wide characters that use more 1482C<$text> is in a special encoding: tabs and wide characters that use more
1251than one cell when displayed are padded with urxvt::NOCHAR characters 1483than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1252(C<chr 65535>). Characters with combining characters and other characters 1484characters. Characters with combining characters and other characters that
1253that do not fit into the normal tetx encoding will be replaced with 1485do not fit into the normal tetx encoding will be replaced with characters
1254characters in the private use area. 1486in the private use area.
1255 1487
1256You have to obey this encoding when changing text. The advantage is 1488You have to obey this encoding when changing text. The advantage is
1257that C<substr> and similar functions work on screen cells and not on 1489that C<substr> and similar functions work on screen cells and not on
1258characters. 1490characters.
1259 1491
1406=item $string = $term->special_decode $text 1638=item $string = $term->special_decode $text
1407 1639
1408Converts rxvt-unicodes text reprsentation into a perl string. See 1640Converts rxvt-unicodes text reprsentation into a perl string. See
1409C<< $term->ROW_t >> for details. 1641C<< $term->ROW_t >> for details.
1410 1642
1411=item $success = $term->grab_button ($button, $modifiermask) 1643=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1412 1644
1645=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1646
1413Registers a synchronous button grab. See the XGrabButton manpage. 1647Register/unregister a synchronous button grab. See the XGrabButton
1648manpage.
1414 1649
1415=item $success = $term->grab ($eventtime[, $sync]) 1650=item $success = $term->grab ($eventtime[, $sync])
1416 1651
1417Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1652Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1418synchronous (C<$sync> is true). Also remembers the grab timestampe. 1653synchronous (C<$sync> is true). Also remembers the grab timestampe.
1433=item $term->ungrab 1668=item $term->ungrab
1434 1669
1435Calls XUngrab for the most recent grab. Is called automatically on 1670Calls XUngrab for the most recent grab. Is called automatically on
1436evaluation errors, as it is better to lose the grab in the error case as 1671evaluation errors, as it is better to lose the grab in the error case as
1437the session. 1672the session.
1673
1674=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1675
1676=item $atom_name = $term->XGetAtomName ($atom)
1677
1678=item @atoms = $term->XListProperties ($window)
1679
1680=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1681
1682=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1683
1684=item $term->XDeleteProperty ($window, $property)
1685
1686=item $window = $term->DefaultRootWindow
1687
1688=item $term->XReparentWindow ($window, $parent, [$x, $y])
1689
1690=item $term->XMapWindow ($window)
1691
1692=item $term->XUnmapWindow ($window)
1693
1694=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1695
1696=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1697
1698=item $term->XChangeInput ($window, $add_events[, $del_events])
1699
1700Various X or X-related functions. The C<$term> object only serves as
1701the source of the display, otherwise those functions map more-or-less
1702directory onto the X functions of the same name.
1438 1703
1439=back 1704=back
1440 1705
1441=cut 1706=cut
1442 1707
1544 my $env = $self->{term}->env; 1809 my $env = $self->{term}->env;
1545 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1810 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1546 delete $env->{LC_ALL}; 1811 delete $env->{LC_ALL};
1547 $env->{LC_CTYPE} = $self->{term}->locale; 1812 $env->{LC_CTYPE} = $self->{term}->locale;
1548 1813
1549 urxvt::term->new ($env, $self->{term}->resource ("name"), 1814 urxvt::term->new ($env, "popup",
1550 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1815 "--perl-lib" => "", "--perl-ext-common" => "",
1816 "-pty-fd" => -1, "-sl" => 0,
1817 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1551 "--transient-for" => $self->{term}->parent, 1818 "--transient-for" => $self->{term}->parent,
1552 "-display" => $self->{term}->display_id, 1819 "-display" => $self->{term}->display_id,
1553 "-pe" => "urxvt-popup") 1820 "-pe" => "urxvt-popup")
1554 or die "unable to create popup window\n"; 1821 or die "unable to create popup window\n";
1555} 1822}
1560 delete $self->{term}{_destroy}{$self}; 1827 delete $self->{term}{_destroy}{$self};
1561 $self->{term}->ungrab; 1828 $self->{term}->ungrab;
1562} 1829}
1563 1830
1564=back 1831=back
1832
1833=cut
1834
1835package urxvt::watcher;
1836
1837@urxvt::timer::ISA = __PACKAGE__;
1838@urxvt::iow::ISA = __PACKAGE__;
1839@urxvt::pw::ISA = __PACKAGE__;
1840@urxvt::iw::ISA = __PACKAGE__;
1565 1841
1566=head2 The C<urxvt::timer> Class 1842=head2 The C<urxvt::timer> Class
1567 1843
1568This class implements timer watchers/events. Time is represented as a 1844This class implements timer watchers/events. Time is represented as a
1569fractional number of seconds since the epoch. Example: 1845fractional number of seconds since the epoch. Example:
1607Start the timer. 1883Start the timer.
1608 1884
1609=item $timer = $timer->start ($tstamp) 1885=item $timer = $timer->start ($tstamp)
1610 1886
1611Set the event trigger time to C<$tstamp> and start the timer. 1887Set the event trigger time to C<$tstamp> and start the timer.
1888
1889=item $timer = $timer->after ($delay)
1890
1891Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1612 1892
1613=item $timer = $timer->stop 1893=item $timer = $timer->stop
1614 1894
1615Stop the timer. 1895Stop the timer.
1616 1896
1663 1943
1664Stop watching for events on the given filehandle. 1944Stop watching for events on the given filehandle.
1665 1945
1666=back 1946=back
1667 1947
1948=head2 The C<urxvt::iw> Class
1949
1950This class implements idle watchers, that get called automatically when
1951the process is idle. They should return as fast as possible, after doing
1952some useful work.
1953
1954=over 4
1955
1956=item $iw = new urxvt::iw
1957
1958Create a new idle watcher object in stopped state.
1959
1960=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1961
1962Set the callback to be called when the watcher triggers.
1963
1964=item $timer = $timer->start
1965
1966Start the watcher.
1967
1968=item $timer = $timer->stop
1969
1970Stop the watcher.
1971
1972=back
1973
1974=head2 The C<urxvt::pw> Class
1975
1976This class implements process watchers. They create an event whenever a
1977process exits, after which they stop automatically.
1978
1979 my $pid = fork;
1980 ...
1981 $term->{pw} = urxvt::pw
1982 ->new
1983 ->start ($pid)
1984 ->cb (sub {
1985 my ($pw, $exit_status) = @_;
1986 ...
1987 });
1988
1989=over 4
1990
1991=item $pw = new urxvt::pw
1992
1993Create a new process watcher in stopped state.
1994
1995=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1996
1997Set the callback to be called when the timer triggers.
1998
1999=item $pw = $timer->start ($pid)
2000
2001Tells the wqtcher to start watching for process C<$pid>.
2002
2003=item $pw = $pw->stop
2004
2005Stop the watcher.
2006
2007=back
2008
1668=head1 ENVIRONMENT 2009=head1 ENVIRONMENT
1669 2010
1670=head2 URXVT_PERL_VERBOSITY 2011=head2 URXVT_PERL_VERBOSITY
1671 2012
1672This variable controls the verbosity level of the perl extension. Higher 2013This variable controls the verbosity level of the perl extension. Higher

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