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Revision 1.98 by root, Tue Jan 17 17:01:54 2006 UTC vs.
Revision 1.130 by root, Wed Jan 25 15:32:48 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 following bindable keyboard commands: 82This extension also offers following bindable keyboard commands:
72 83
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
125 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 181
127And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 183paste directly into your (vi :) editor:
129 184
130 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\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.
160 246
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/%
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
165overlays or changes. 300overlays or changes.
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/%
193 301
194=back 302=back
195 303
196=head1 API DOCUMENTATION 304=head1 API DOCUMENTATION
197 305
270called whenever the relevant event happens. 378called whenever the relevant event happens.
271 379
272The 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
273the in the C<Extension Objects> section. 381the in the C<Extension Objects> section.
274 382
275B<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
276event 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
277skipped, and the relevant action might not be carried out by the C++ code. 385relevant action might not be carried out by the C++ code.
278 386
279I<< When in doubt, return a false value (preferably C<()>). >> 387I<< When in doubt, return a false value (preferably C<()>). >>
280 388
281=over 4 389=over 4
282 390
283=item on_init $term 391=item on_init $term
284 392
285Called after a new terminal object has been initialized, but before 393Called after a new terminal object has been initialized, but before
286windows 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
287call or deliver senseless data, as terminal size and other characteristics 395call or deliver senseless data, as terminal size and other characteristics
288have not yet been determined. You can safely query and change resources, 396have not yet been determined. You can safely query and change resources
289though. 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).
290 409
291=item on_reset $term 410=item on_reset $term
292 411
293Called 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
294control 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
295variables. 414variables.
296 415
297=item on_start $term 416=item on_child_start $term, $pid
298 417
299Called at the very end of initialisation of a new terminal, just before 418Called just after the child process has been C<fork>ed.
300returning 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>.
301 424
302=item on_sel_make $term, $eventtime 425=item on_sel_make $term, $eventtime
303 426
304Called 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
305selection 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
392 515
393=item on_refresh_end $term 516=item on_refresh_end $term
394 517
395Called just after the screen gets redrawn. See C<on_refresh_begin>. 518Called just after the screen gets redrawn. See C<on_refresh_begin>.
396 519
397=item on_keyboard_command $term, $string 520=item on_user_command $term, $string
398 521
399Called whenever the user presses a key combination that has a 522Called whenever the a user-configured event is being activated (e.g. via
400C<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>
401resource 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.
402 528
403=item on_x_event $term, $event 529=item on_x_event $term, $event
404 530
405Called 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
406windows). Should only be used as a last resort. Most event structure 532windows). Should only be used as a last resort. Most event structure
414=item on_focus_out $term 540=item on_focus_out $term
415 541
416Called wheneever the window loses keyboard focus, before rxvt-unicode does 542Called wheneever the window loses keyboard focus, before rxvt-unicode does
417focus out processing. 543focus out processing.
418 544
545=item on_configure_notify $term, $event
546
547=item on_property_notify $term, $event
548
419=item on_key_press $term, $event, $keysym, $octets 549=item on_key_press $term, $event, $keysym, $octets
420 550
421=item on_key_release $term, $event, $keysym 551=item on_key_release $term, $event, $keysym
422 552
423=item on_button_press $term, $event 553=item on_button_press $term, $event
432 562
433Called whenever the corresponding X event is received for the terminal If 563Called whenever the corresponding X event is received for the terminal If
434the 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.
435 565
436The 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
437manpage), 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
438and column under the mouse cursor. 568(real, not screen-based) row and column under the mouse cursor.
439 569
440C<on_key_press> additionally receives the string rxvt-unicode would 570C<on_key_press> additionally receives the string rxvt-unicode would
441output, if any, in locale-specific encoding. 571output, if any, in locale-specific encoding.
442 572
443subwindow. 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).
444 583
445=back 584=back
446 585
447=cut 586=cut
448 587
454use Scalar::Util (); 593use Scalar::Util ();
455use List::Util (); 594use List::Util ();
456 595
457our $VERSION = 1; 596our $VERSION = 1;
458our $TERM; 597our $TERM;
598our @TERM_INIT;
599our @TERM_EXT;
459our @HOOKNAME; 600our @HOOKNAME;
460our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 601our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
461our %OPTION; 602our %OPTION;
462 603
463our $LIBDIR; 604our $LIBDIR;
464our $RESNAME; 605our $RESNAME;
465our $RESCLASS; 606our $RESCLASS;
466our $RXVTNAME; 607our $RXVTNAME;
467 608
609our $NOCHAR = chr 0xffff;
610
468=head2 Variables in the C<urxvt> Package 611=head2 Variables in the C<urxvt> Package
469 612
470=over 4 613=over 4
471 614
472=item $urxvt::LIBDIR 615=item $urxvt::LIBDIR
484 627
485=item $urxvt::TERM 628=item $urxvt::TERM
486 629
487The current terminal. This variable stores the current C<urxvt::term> 630The current terminal. This variable stores the current C<urxvt::term>
488object, 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>.
489 648
490=back 649=back
491 650
492=head2 Functions in the C<urxvt> Package 651=head2 Functions in the C<urxvt> Package
493 652
593=back 752=back
594 753
595=cut 754=cut
596 755
597BEGIN { 756BEGIN {
598 urxvt->bootstrap;
599
600 # overwrite perl's warn 757 # overwrite perl's warn
601 *CORE::GLOBAL::warn = sub { 758 *CORE::GLOBAL::warn = sub {
602 my $msg = join "", @_; 759 my $msg = join "", @_;
603 $msg .= "\n" 760 $msg .= "\n"
604 unless $msg =~ /\n$/; 761 unless $msg =~ /\n$/;
605 urxvt::warn ($msg); 762 urxvt::warn ($msg);
606 }; 763 };
607
608 # %ENV is the original startup environment
609 delete $ENV{IFS};
610 delete $ENV{CDPATH};
611 delete $ENV{BASH_ENV};
612 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
613} 764}
765
766no warnings 'utf8';
614 767
615my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 768my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
616 769
617sub verbose { 770sub verbose {
618 my ($level, $msg) = @_; 771 my ($level, $msg) = @_;
619 warn "$msg\n" if $level <= $verbosity; 772 warn "$msg\n" if $level <= $verbosity;
620} 773}
621 774
622my $extension_pkg = "extension0000";
623my %extension_pkg; 775my %extension_pkg;
624 776
625# load a single script into its own package, once only 777# load a single script into its own package, once only
626sub extension_package($) { 778sub extension_package($) {
627 my ($path) = @_; 779 my ($path) = @_;
628 780
629 $extension_pkg{$path} ||= do { 781 $extension_pkg{$path} ||= do {
630 my $pkg = "urxvt::" . ($extension_pkg++); 782 $path =~ /([^\/\\]+)$/;
783 my $pkg = $1;
784 $pkg =~ s/[^[:word:]]/_/g;
785 $pkg = "urxvt::ext::$pkg";
631 786
632 verbose 3, "loading extension '$path' into package '$pkg'"; 787 verbose 3, "loading extension '$path' into package '$pkg'";
633 788
634 open my $fh, "<:raw", $path 789 open my $fh, "<:raw", $path
635 or die "$path: $!"; 790 or die "$path: $!";
636 791
637 my $source = 792 my $source =
638 "package $pkg; use strict; use utf8;\n" 793 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
639 . "use base urxvt::term::extension::;\n"
640 . "#line 1 \"$path\"\n{\n" 794 . "#line 1 \"$path\"\n{\n"
641 . (do { local $/; <$fh> }) 795 . (do { local $/; <$fh> })
642 . "\n};\n1"; 796 . "\n};\n1";
643 797
644 eval $source 798 eval $source
658 if ($htype == 0) { # INIT 812 if ($htype == 0) { # INIT
659 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 813 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
660 814
661 my %ext_arg; 815 my %ext_arg;
662 816
817 {
818 my @init = @TERM_INIT;
819 @TERM_INIT = ();
820 $_->($TERM) for @init;
821 my @pkg = @TERM_EXT;
822 @TERM_EXT = ();
823 $TERM->register_package ($_) for @pkg;
824 }
825
663 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 826 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
664 if ($_ eq "default") { 827 if ($_ eq "default") {
665 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 828 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
666 } elsif (/^-(.*)$/) { 829 } elsif (/^-(.*)$/) {
667 delete $ext_arg{$1}; 830 delete $ext_arg{$1};
668 } elsif (/^([^<]+)<(.*)>$/) { 831 } elsif (/^([^<]+)<(.*)>$/) {
669 push @{ $ext_arg{$1} }, $2; 832 push @{ $ext_arg{$1} }, $2;
670 } else { 833 } else {
693 if $verbosity >= 10; 856 if $verbosity >= 10;
694 857
695 keys %$cb; 858 keys %$cb;
696 859
697 while (my ($pkg, $cb) = each %$cb) { 860 while (my ($pkg, $cb) = each %$cb) {
698 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 861 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
699 and last; 862 $retval ||= $retval_;
700 863
701 if ($@) { 864 if ($@) {
702 $TERM->ungrab; # better to lose the grab than the session 865 $TERM->ungrab; # better to lose the grab than the session
703 warn $@; 866 warn $@;
704 } 867 }
715 # clear package 878 # clear package
716 %$TERM = (); 879 %$TERM = ();
717 } 880 }
718 881
719 $retval 882 $retval
720}
721
722sub exec_async(@) {
723 my $pid = fork;
724
725 return
726 if !defined $pid or $pid;
727
728 %ENV = %{ $TERM->env };
729
730 exec @_;
731 _exit 255;
732} 883}
733 884
734# urxvt::term::extension 885# urxvt::term::extension
735 886
736package urxvt::term::extension; 887package urxvt::term::extension;
875# find on_xxx subs in the package and register them 1026# find on_xxx subs in the package and register them
876# as hooks 1027# as hooks
877sub register_package { 1028sub register_package {
878 my ($self, $pkg, $argv) = @_; 1029 my ($self, $pkg, $argv) = @_;
879 1030
1031 no strict 'refs';
1032
1033 urxvt::verbose 6, "register package $pkg to $self";
1034
1035 @{"$pkg\::ISA"} = urxvt::term::extension::;
1036
880 my $proxy = bless { 1037 my $proxy = bless {
881 _pkg => $pkg, 1038 _pkg => $pkg,
882 argv => $argv, 1039 argv => $argv,
883 }, $pkg; 1040 }, $pkg;
884 Scalar::Util::weaken ($proxy->{term} = $self); 1041 Scalar::Util::weaken ($proxy->{term} = $self);
915 1072
916Destroy the terminal object (close the window, free resources 1073Destroy the terminal object (close the window, free resources
917etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1074etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
918watchers (timers, io watchers) are still active. 1075watchers (timers, io watchers) are still active.
919 1076
1077=item $term->exec_async ($cmd[, @args])
1078
1079Works like the combination of the C<fork>/C<exec> builtins, which executes
1080("starts") programs in the background. This function takes care of setting
1081the user environment before exec'ing the command (e.g. C<PATH>) and should
1082be preferred over explicit calls to C<exec> or C<system>.
1083
1084Returns the pid of the subprocess or C<undef> on error.
1085
1086=cut
1087
1088sub exec_async {
1089 my $self = shift;
1090
1091 my $pid = fork;
1092
1093 return $pid
1094 if !defined $pid or $pid;
1095
1096 %ENV = %{ $self->env };
1097
1098 exec @_;
1099 urxvt::_exit 255;
1100}
1101
920=item $isset = $term->option ($optval[, $set]) 1102=item $isset = $term->option ($optval[, $set])
921 1103
922Returns true if the option specified by C<$optval> is enabled, and 1104Returns true if the option specified by C<$optval> is enabled, and
923optionally change it. All option values are stored by name in the hash 1105optionally change it. All option values are stored by name in the hash
924C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1106C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
926Here is a a likely non-exhaustive list of option names, please see the 1108Here is a a likely non-exhaustive list of option names, please see the
927source file F</src/optinc.h> to see the actual list: 1109source file F</src/optinc.h> to see the actual list:
928 1110
929 borderLess console cursorBlink cursorUnderline hold iconic insecure 1111 borderLess console cursorBlink cursorUnderline hold iconic insecure
930 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1112 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
931 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1113 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
932 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1114 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
933 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1115 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
934 tripleclickwords utmpInhibit visualBell 1116 transparent tripleclickwords utmpInhibit visualBell
935 1117
936=item $value = $term->resource ($name[, $newval]) 1118=item $value = $term->resource ($name[, $newval])
937 1119
938Returns the current resource value associated with a given name and 1120Returns the current resource value associated with a given name and
939optionally sets a new value. Setting values is most useful in the C<init> 1121optionally sets a new value. Setting values is most useful in the C<init>
956 1138
957 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1139 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
958 borderLess color cursorBlink cursorUnderline cutchars delete_key 1140 borderLess color cursorBlink cursorUnderline cutchars delete_key
959 display_name embed ext_bwidth fade font geometry hold iconName 1141 display_name embed ext_bwidth fade font geometry hold iconName
960 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1142 imFont imLocale inputMethod insecure int_bwidth intensityStyles
961 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1143 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
962 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1144 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
963 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1145 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
964 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1146 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
965 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1147 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
966 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1148 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
967 shade term_name title transparent transparent_all tripleclickwords 1149 secondaryScreen secondaryScroll selectstyle shade term_name title
968 utmpInhibit visualBell 1150 transient_for transparent transparent_all tripleclickwords utmpInhibit
1151 visualBell
969 1152
970=cut 1153=cut
971 1154
972sub resource($$;$) { 1155sub resource($$;$) {
973 my ($self, $name) = (shift, shift); 1156 my ($self, $name) = (shift, shift);
1147 1330
1148Normally its not a good idea to use this function, as programs might be 1331Normally its not a good idea to use this function, as programs might be
1149confused by changes in cursor position or scrolling. Its useful inside a 1332confused by changes in cursor position or scrolling. Its useful inside a
1150C<on_add_lines> hook, though. 1333C<on_add_lines> hook, though.
1151 1334
1335=item $term->scr_change_screen ($screen)
1336
1337Switch to given screen - 0 primary, 1 secondary.
1338
1152=item $term->cmd_parse ($octets) 1339=item $term->cmd_parse ($octets)
1153 1340
1154Similar to C<scr_add_lines>, but the argument must be in the 1341Similar to C<scr_add_lines>, but the argument must be in the
1155locale-specific encoding of the terminal and can contain command sequences 1342locale-specific encoding of the terminal and can contain command sequences
1156(escape codes) that will be interpreted. 1343(escape codes) that will be interpreted.
1165 1352
1166Replaces the event mask of the pty watcher by the given event mask. Can 1353Replaces 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 1354be used to suppress input and output handling to the pty/tty. See the
1168description of C<< urxvt::timer->events >>. Make sure to always restore 1355description of C<< urxvt::timer->events >>. Make sure to always restore
1169the previous value. 1356the previous value.
1357
1358=item $fd = $term->pty_fd
1359
1360Returns the master file descriptor for the pty in use, or C<-1> if no pty
1361is used.
1170 1362
1171=item $windowid = $term->parent 1363=item $windowid = $term->parent
1172 1364
1173Return the window id of the toplevel window. 1365Return the window id of the toplevel window.
1174 1366
1239=item $modifiermask = $term->ModNumLockMask 1431=item $modifiermask = $term->ModNumLockMask
1240 1432
1241Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1433Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1242AltGr), the meta key (often Alt) and the num lock key, if applicable. 1434AltGr), the meta key (often Alt) and the num lock key, if applicable.
1243 1435
1436=item $screen = $term->current_screen
1437
1438Returns the currently displayed screen (0 primary, 1 secondary).
1439
1440=item $cursor_is_hidden = $term->hidden_cursor
1441
1442Returns wether the cursor is currently hidden or not.
1443
1244=item $view_start = $term->view_start ([$newvalue]) 1444=item $view_start = $term->view_start ([$newvalue])
1245 1445
1246Returns the row number of the topmost displayed line. Maximum value is 1446Returns the row number of the topmost displayed line. Maximum value is
1247C<0>, which displays the normal terminal contents. Lower values scroll 1447C<0>, which displays the normal terminal contents. Lower values scroll
1248this many lines into the scrollback buffer. 1448this many lines into the scrollback buffer.
1267line, starting at column C<$start_col> (default C<0>), which is useful 1467line, starting at column C<$start_col> (default C<0>), which is useful
1268to replace only parts of a line. The font index in the rendition will 1468to replace only parts of a line. The font index in the rendition will
1269automatically be updated. 1469automatically be updated.
1270 1470
1271C<$text> is in a special encoding: tabs and wide characters that use more 1471C<$text> is in a special encoding: tabs and wide characters that use more
1272than one cell when displayed are padded with urxvt::NOCHAR characters 1472than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1273(C<chr 65535>). Characters with combining characters and other characters 1473characters. Characters with combining characters and other characters that
1274that do not fit into the normal tetx encoding will be replaced with 1474do not fit into the normal tetx encoding will be replaced with characters
1275characters in the private use area. 1475in the private use area.
1276 1476
1277You have to obey this encoding when changing text. The advantage is 1477You have to obey this encoding when changing text. The advantage is
1278that C<substr> and similar functions work on screen cells and not on 1478that C<substr> and similar functions work on screen cells and not on
1279characters. 1479characters.
1280 1480
1455 1655
1456Calls XUngrab for the most recent grab. Is called automatically on 1656Calls XUngrab for the most recent grab. Is called automatically on
1457evaluation errors, as it is better to lose the grab in the error case as 1657evaluation errors, as it is better to lose the grab in the error case as
1458the session. 1658the session.
1459 1659
1660=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1661
1662=item $atom_name = $term->XGetAtomName ($atom)
1663
1664=item @atoms = $term->XListProperties ($window)
1665
1666=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1667
1668=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1669
1670=item $term->XDeleteProperty ($window, $property)
1671
1672=item $window = $term->DefaultRootWindow
1673
1674=item $term->XReparentWindow ($window, $parent, [$x, $y])
1675
1676=item $term->XMapWindow ($window)
1677
1678=item $term->XUnmapWindow ($window)
1679
1680=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1681
1682=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1683
1684=item $term->XChangeInput ($window, $add_events[, $del_events])
1685
1686Various X or X-related functions. The C<$term> object only serves as
1687the source of the display, otherwise those functions map more-or-less
1688directory onto the X functions of the same name.
1689
1460=back 1690=back
1461 1691
1462=cut 1692=cut
1463 1693
1464package urxvt::popup; 1694package urxvt::popup;
1565 my $env = $self->{term}->env; 1795 my $env = $self->{term}->env;
1566 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1796 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1567 delete $env->{LC_ALL}; 1797 delete $env->{LC_ALL};
1568 $env->{LC_CTYPE} = $self->{term}->locale; 1798 $env->{LC_CTYPE} = $self->{term}->locale;
1569 1799
1570 urxvt::term->new ($env, $self->{term}->resource ("name"), 1800 urxvt::term->new ($env, "popup",
1571 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1801 "--perl-lib" => "", "--perl-ext-common" => "",
1802 "-pty-fd" => -1, "-sl" => 0,
1803 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1572 "--transient-for" => $self->{term}->parent, 1804 "--transient-for" => $self->{term}->parent,
1573 "-display" => $self->{term}->display_id, 1805 "-display" => $self->{term}->display_id,
1574 "-pe" => "urxvt-popup") 1806 "-pe" => "urxvt-popup")
1575 or die "unable to create popup window\n"; 1807 or die "unable to create popup window\n";
1576} 1808}
1581 delete $self->{term}{_destroy}{$self}; 1813 delete $self->{term}{_destroy}{$self};
1582 $self->{term}->ungrab; 1814 $self->{term}->ungrab;
1583} 1815}
1584 1816
1585=back 1817=back
1818
1819=cut
1820
1821package urxvt::watcher;
1822
1823@urxvt::timer::ISA = __PACKAGE__;
1824@urxvt::iow::ISA = __PACKAGE__;
1825@urxvt::pw::ISA = __PACKAGE__;
1826@urxvt::iw::ISA = __PACKAGE__;
1586 1827
1587=head2 The C<urxvt::timer> Class 1828=head2 The C<urxvt::timer> Class
1588 1829
1589This class implements timer watchers/events. Time is represented as a 1830This class implements timer watchers/events. Time is represented as a
1590fractional number of seconds since the epoch. Example: 1831fractional number of seconds since the epoch. Example:
1628Start the timer. 1869Start the timer.
1629 1870
1630=item $timer = $timer->start ($tstamp) 1871=item $timer = $timer->start ($tstamp)
1631 1872
1632Set the event trigger time to C<$tstamp> and start the timer. 1873Set the event trigger time to C<$tstamp> and start the timer.
1874
1875=item $timer = $timer->after ($delay)
1876
1877Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1633 1878
1634=item $timer = $timer->stop 1879=item $timer = $timer->stop
1635 1880
1636Stop the timer. 1881Stop the timer.
1637 1882
1684 1929
1685Stop watching for events on the given filehandle. 1930Stop watching for events on the given filehandle.
1686 1931
1687=back 1932=back
1688 1933
1934=head2 The C<urxvt::iw> Class
1935
1936This class implements idle watchers, that get called automatically when
1937the process is idle. They should return as fast as possible, after doing
1938some useful work.
1939
1940=over 4
1941
1942=item $iw = new urxvt::iw
1943
1944Create a new idle watcher object in stopped state.
1945
1946=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1947
1948Set the callback to be called when the watcher triggers.
1949
1950=item $timer = $timer->start
1951
1952Start the watcher.
1953
1954=item $timer = $timer->stop
1955
1956Stop the watcher.
1957
1958=back
1959
1960=head2 The C<urxvt::pw> Class
1961
1962This class implements process watchers. They create an event whenever a
1963process exits, after which they stop automatically.
1964
1965 my $pid = fork;
1966 ...
1967 $term->{pw} = urxvt::pw
1968 ->new
1969 ->start ($pid)
1970 ->cb (sub {
1971 my ($pw, $exit_status) = @_;
1972 ...
1973 });
1974
1975=over 4
1976
1977=item $pw = new urxvt::pw
1978
1979Create a new process watcher in stopped state.
1980
1981=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1982
1983Set the callback to be called when the timer triggers.
1984
1985=item $pw = $timer->start ($pid)
1986
1987Tells the wqtcher to start watching for process C<$pid>.
1988
1989=item $pw = $pw->stop
1990
1991Stop the watcher.
1992
1993=back
1994
1689=head1 ENVIRONMENT 1995=head1 ENVIRONMENT
1690 1996
1691=head2 URXVT_PERL_VERBOSITY 1997=head2 URXVT_PERL_VERBOSITY
1692 1998
1693This variable controls the verbosity level of the perl extension. Higher 1999This variable controls the verbosity level of the perl extension. Higher

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