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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.95 by elmex, Tue Jan 17 13:19:45 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 following bindable keyboard commands: 82This extension also offers following bindable keyboard commands:
72 83
76 87
77Rot-13 the selection when activated. Used via keyboard trigger: 88Rot-13 the selection when activated. Used via keyboard trigger:
78 89
79 URxvt.keysym.C-M-r: perl:selection:rot13 90 URxvt.keysym.C-M-r: perl:selection:rot13
80 91
81=item remote-pastebin
82
83Upload the selection as textfile to a remote site.
84
85 URxvt.keysym.C-M-e: perl:selection:remote-pastebin
86
87To set the command to upload the file set this resource:
88
89 URxvt.selection-pastebin-cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
90
91The % is the placeholder for the textfile. The name of the textfile is the hex encoded
92md5 sum of the selection.
93After an successful upload the selection will be replaced by the following url
94(the % is the placeholder for the filename):
95
96 URxvt.selection-pastebin-url: http://www.ta-sa.org/files/txt/%
97
98=back 92=back
99 93
100=item option-popup (enabled by default) 94=item option-popup (enabled by default)
101 95
102Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at 96Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
104 98
105=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
106 100
107Binds 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
108text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
109evalution, 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 };
110 123
111=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
112 125
113Adds regex search functionality to the scrollback buffer, triggered 126Adds regex search functionality to the scrollback buffer, triggered
114by 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
121bottom. 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
122was 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
123additionally stores the first match in the current line into the primary 136additionally stores the first match in the current line into the primary
124selection. 137selection.
125 138
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
126=item selection-autotransform 164=item selection-autotransform
127 165
128This selection allows you to do automatic transforms on a selection 166This selection allows you to do automatic transforms on a selection
129whenever a selection is made. 167whenever a selection is made.
130 168
142 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
143 181
144And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
145paste directly into your (vi :) editor: 183paste directly into your (vi :) editor:
146 184
147 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
148 186
149Of course, this can be modified to suit your needs and your editor :) 187Of course, this can be modified to suit your needs and your editor :)
150 188
151To expand the example above to typical perl error messages ("XXX at 189To expand the example above to typical perl error messages ("XXX at
152FILENAME line YYY."), you need a slightly more elaborate solution: 190FILENAME line YYY."), you need a slightly more elaborate solution:
153 191
154 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
155 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
156 194
157The 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
158every error message as a selection pattern, and the second line transforms 196every error message as a selection pattern, and the second line transforms
159the 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.
160 209
161=item mark-urls 210=item mark-urls
162 211
163Uses 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
164make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
165resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
166the URL as first argument. 215the URL as first argument.
167 216
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
168=item block-graphics-to-ascii 237=item block-graphics-to-ascii
169 238
170A 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,
171by replacing all line-drawing characters (U+2500 .. U+259F) by a 240by replacing all line-drawing characters (U+2500 .. U+259F) by a
172similar-looking ascii character. 241similar-looking ascii character.
173 242
174=item digital-clock 243=item digital-clock
175 244
176Displays 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/%
177 295
178=item example-refresh-hooks 296=item example-refresh-hooks
179 297
180Displays 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
181window. Illustrates overwriting the refresh callbacks to create your own 299window. Illustrates overwriting the refresh callbacks to create your own
260called whenever the relevant event happens. 378called whenever the relevant event happens.
261 379
262The 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
263the in the C<Extension Objects> section. 381the in the C<Extension Objects> section.
264 382
265B<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
266event 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
267skipped, and the relevant action might not be carried out by the C++ code. 385relevant action might not be carried out by the C++ code.
268 386
269I<< When in doubt, return a false value (preferably C<()>). >> 387I<< When in doubt, return a false value (preferably C<()>). >>
270 388
271=over 4 389=over 4
272 390
273=item on_init $term 391=item on_init $term
274 392
275Called after a new terminal object has been initialized, but before 393Called after a new terminal object has been initialized, but before
276windows 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
277call or deliver senseless data, as terminal size and other characteristics 395call or deliver senseless data, as terminal size and other characteristics
278have not yet been determined. You can safely query and change resources, 396have not yet been determined. You can safely query and change resources
279though. 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).
280 409
281=item on_reset $term 410=item on_reset $term
282 411
283Called 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
284control 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
285variables. 414variables.
286 415
287=item on_start $term 416=item on_child_start $term, $pid
288 417
289Called at the very end of initialisation of a new terminal, just before 418Called just after the child process has been C<fork>ed.
290returning 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>.
291 424
292=item on_sel_make $term, $eventtime 425=item on_sel_make $term, $eventtime
293 426
294Called 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
295selection 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
382 515
383=item on_refresh_end $term 516=item on_refresh_end $term
384 517
385Called just after the screen gets redrawn. See C<on_refresh_begin>. 518Called just after the screen gets redrawn. See C<on_refresh_begin>.
386 519
387=item on_keyboard_command $term, $string 520=item on_user_command $term, $string
388 521
389Called whenever the user presses a key combination that has a 522Called whenever the a user-configured event is being activated (e.g. via
390C<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>
391resource 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.
392 528
393=item on_x_event $term, $event 529=item on_x_event $term, $event
394 530
395Called 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
396windows). Should only be used as a last resort. Most event structure 532windows). Should only be used as a last resort. Most event structure
404=item on_focus_out $term 540=item on_focus_out $term
405 541
406Called wheneever the window loses keyboard focus, before rxvt-unicode does 542Called wheneever the window loses keyboard focus, before rxvt-unicode does
407focus out processing. 543focus out processing.
408 544
545=item on_configure_notify $term, $event
546
547=item on_property_notify $term, $event
548
409=item on_key_press $term, $event, $keysym, $octets 549=item on_key_press $term, $event, $keysym, $octets
410 550
411=item on_key_release $term, $event, $keysym 551=item on_key_release $term, $event, $keysym
412 552
413=item on_button_press $term, $event 553=item on_button_press $term, $event
422 562
423Called whenever the corresponding X event is received for the terminal If 563Called whenever the corresponding X event is received for the terminal If
424the 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.
425 565
426The 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
427manpage), 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
428and column under the mouse cursor. 568(real, not screen-based) row and column under the mouse cursor.
429 569
430C<on_key_press> additionally receives the string rxvt-unicode would 570C<on_key_press> additionally receives the string rxvt-unicode would
431output, if any, in locale-specific encoding. 571output, if any, in locale-specific encoding.
432 572
433subwindow. 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).
434 583
435=back 584=back
436 585
437=cut 586=cut
438 587
444use Scalar::Util (); 593use Scalar::Util ();
445use List::Util (); 594use List::Util ();
446 595
447our $VERSION = 1; 596our $VERSION = 1;
448our $TERM; 597our $TERM;
598our @TERM_INIT;
599our @TERM_EXT;
449our @HOOKNAME; 600our @HOOKNAME;
450our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 601our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
451our %OPTION; 602our %OPTION;
452 603
453our $LIBDIR; 604our $LIBDIR;
454our $RESNAME; 605our $RESNAME;
455our $RESCLASS; 606our $RESCLASS;
456our $RXVTNAME; 607our $RXVTNAME;
457 608
609our $NOCHAR = chr 0xffff;
610
458=head2 Variables in the C<urxvt> Package 611=head2 Variables in the C<urxvt> Package
459 612
460=over 4 613=over 4
461 614
462=item $urxvt::LIBDIR 615=item $urxvt::LIBDIR
474 627
475=item $urxvt::TERM 628=item $urxvt::TERM
476 629
477The current terminal. This variable stores the current C<urxvt::term> 630The current terminal. This variable stores the current C<urxvt::term>
478object, 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>.
479 648
480=back 649=back
481 650
482=head2 Functions in the C<urxvt> Package 651=head2 Functions in the C<urxvt> Package
483 652
498Using 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
499correct place, e.g. on stderr of the connecting urxvtc client. 668correct place, e.g. on stderr of the connecting urxvtc client.
500 669
501Messages have a size limit of 1023 bytes currently. 670Messages have a size limit of 1023 bytes currently.
502 671
503=item $is_safe = urxvt::safe 672=item @terms = urxvt::termlist
504 673
505Returns true when it is safe to do potentially unsafe things, such as 674Returns all urxvt::term objects that exist in this process, regardless of
506evaluating perl code specified by the user. This is true when urxvt was 675wether they are started, being destroyed etc., so be careful. Only term
507started setuid or setgid. 676objects that have perl extensions attached will be returned (because there
677is no urxvt::term objet associated with others).
508 678
509=item $time = urxvt::NOW 679=item $time = urxvt::NOW
510 680
511Returns the "current time" (as per the event loop). 681Returns the "current time" (as per the event loop).
512 682
589=back 759=back
590 760
591=cut 761=cut
592 762
593BEGIN { 763BEGIN {
594 urxvt->bootstrap;
595
596 # overwrite perl's warn 764 # overwrite perl's warn
597 *CORE::GLOBAL::warn = sub { 765 *CORE::GLOBAL::warn = sub {
598 my $msg = join "", @_; 766 my $msg = join "", @_;
599 $msg .= "\n" 767 $msg .= "\n"
600 unless $msg =~ /\n$/; 768 unless $msg =~ /\n$/;
601 urxvt::warn ($msg); 769 urxvt::warn ($msg);
602 }; 770 };
603
604 # %ENV is the original startup environment
605 delete $ENV{IFS};
606 delete $ENV{CDPATH};
607 delete $ENV{BASH_ENV};
608 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
609} 771}
772
773no warnings 'utf8';
610 774
611my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 775my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
612 776
613sub verbose { 777sub verbose {
614 my ($level, $msg) = @_; 778 my ($level, $msg) = @_;
615 warn "$msg\n" if $level <= $verbosity; 779 warn "$msg\n" if $level <= $verbosity;
616} 780}
617 781
618my $extension_pkg = "extension0000";
619my %extension_pkg; 782my %extension_pkg;
620 783
621# load a single script into its own package, once only 784# load a single script into its own package, once only
622sub extension_package($) { 785sub extension_package($) {
623 my ($path) = @_; 786 my ($path) = @_;
624 787
625 $extension_pkg{$path} ||= do { 788 $extension_pkg{$path} ||= do {
626 my $pkg = "urxvt::" . ($extension_pkg++); 789 $path =~ /([^\/\\]+)$/;
790 my $pkg = $1;
791 $pkg =~ s/[^[:word:]]/_/g;
792 $pkg = "urxvt::ext::$pkg";
627 793
628 verbose 3, "loading extension '$path' into package '$pkg'"; 794 verbose 3, "loading extension '$path' into package '$pkg'";
629 795
630 open my $fh, "<:raw", $path 796 open my $fh, "<:raw", $path
631 or die "$path: $!"; 797 or die "$path: $!";
632 798
633 my $source = untaint 799 my $source =
634 "package $pkg; use strict; use utf8;\n" 800 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
635 . "use base urxvt::term::extension::;\n"
636 . "#line 1 \"$path\"\n{\n" 801 . "#line 1 \"$path\"\n{\n"
637 . (do { local $/; <$fh> }) 802 . (do { local $/; <$fh> })
638 . "\n};\n1"; 803 . "\n};\n1";
639 804
640 eval $source 805 eval $source
654 if ($htype == 0) { # INIT 819 if ($htype == 0) { # INIT
655 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 820 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
656 821
657 my %ext_arg; 822 my %ext_arg;
658 823
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
659 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 833 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
660 if ($_ eq "default") { 834 if ($_ eq "default") {
661 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 835 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
662 } elsif (/^-(.*)$/) { 836 } elsif (/^-(.*)$/) {
663 delete $ext_arg{$1}; 837 delete $ext_arg{$1};
664 } elsif (/^([^<]+)<(.*)>$/) { 838 } elsif (/^([^<]+)<(.*)>$/) {
665 push @{ $ext_arg{$1} }, $2; 839 push @{ $ext_arg{$1} }, $2;
666 } else { 840 } else {
689 if $verbosity >= 10; 863 if $verbosity >= 10;
690 864
691 keys %$cb; 865 keys %$cb;
692 866
693 while (my ($pkg, $cb) = each %$cb) { 867 while (my ($pkg, $cb) = each %$cb) {
694 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 868 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
695 and last; 869 $retval ||= $retval_;
696 870
697 if ($@) { 871 if ($@) {
698 $TERM->ungrab; # better to lose the grab than the session 872 $TERM->ungrab; # better to lose the grab than the session
699 warn $@; 873 warn $@;
700 } 874 }
711 # clear package 885 # clear package
712 %$TERM = (); 886 %$TERM = ();
713 } 887 }
714 888
715 $retval 889 $retval
716}
717
718sub exec_async(@) {
719 my $pid = fork;
720
721 return
722 if !defined $pid or $pid;
723
724 %ENV = %{ $TERM->env };
725
726 exec @_;
727 _exit 255;
728} 890}
729 891
730# urxvt::term::extension 892# urxvt::term::extension
731 893
732package urxvt::term::extension; 894package urxvt::term::extension;
871# find on_xxx subs in the package and register them 1033# find on_xxx subs in the package and register them
872# as hooks 1034# as hooks
873sub register_package { 1035sub register_package {
874 my ($self, $pkg, $argv) = @_; 1036 my ($self, $pkg, $argv) = @_;
875 1037
1038 no strict 'refs';
1039
1040 urxvt::verbose 6, "register package $pkg to $self";
1041
1042 @{"$pkg\::ISA"} = urxvt::term::extension::;
1043
876 my $proxy = bless { 1044 my $proxy = bless {
877 _pkg => $pkg, 1045 _pkg => $pkg,
878 argv => $argv, 1046 argv => $argv,
879 }, $pkg; 1047 }, $pkg;
880 Scalar::Util::weaken ($proxy->{term} = $self); 1048 Scalar::Util::weaken ($proxy->{term} = $self);
895hash which defines the environment of the new terminal. 1063hash which defines the environment of the new terminal.
896 1064
897Croaks (and probably outputs an error message) if the new instance 1065Croaks (and probably outputs an error message) if the new instance
898couldn't be created. Returns C<undef> if the new instance didn't 1066couldn't be created. Returns C<undef> if the new instance didn't
899initialise perl, and the terminal object otherwise. The C<init> and 1067initialise perl, and the terminal object otherwise. The C<init> and
900C<start> hooks will be called during this call. 1068C<start> hooks will be called before this call returns, and are free to
1069refer to global data (which is race free).
901 1070
902=cut 1071=cut
903 1072
904sub new { 1073sub new {
905 my ($class, $env, @args) = @_; 1074 my ($class, $env, @args) = @_;
906 1075
1076 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1077 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1078
907 _new ([ map "$_=$env->{$_}", keys %$env ], @args); 1079 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
908} 1080}
909 1081
910=item $term->destroy 1082=item $term->destroy
911 1083
912Destroy the terminal object (close the window, free resources 1084Destroy the terminal object (close the window, free resources
913etc.). 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
914watchers (timers, io watchers) are still active. 1086watchers (timers, io watchers) are still active.
915 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
916=item $isset = $term->option ($optval[, $set]) 1113=item $isset = $term->option ($optval[, $set])
917 1114
918Returns true if the option specified by C<$optval> is enabled, and 1115Returns true if the option specified by C<$optval> is enabled, and
919optionally 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
920C<%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.
922Here 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
923source file F</src/optinc.h> to see the actual list: 1120source file F</src/optinc.h> to see the actual list:
924 1121
925 borderLess console cursorBlink cursorUnderline hold iconic insecure 1122 borderLess console cursorBlink cursorUnderline hold iconic insecure
926 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1123 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
927 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1124 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
928 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1125 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
929 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1126 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
930 tripleclickwords utmpInhibit visualBell 1127 transparent tripleclickwords utmpInhibit visualBell
931 1128
932=item $value = $term->resource ($name[, $newval]) 1129=item $value = $term->resource ($name[, $newval])
933 1130
934Returns the current resource value associated with a given name and 1131Returns the current resource value associated with a given name and
935optionally 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>
952 1149
953 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1150 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
954 borderLess color cursorBlink cursorUnderline cutchars delete_key 1151 borderLess color cursorBlink cursorUnderline cutchars delete_key
955 display_name embed ext_bwidth fade font geometry hold iconName 1152 display_name embed ext_bwidth fade font geometry hold iconName
956 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1153 imFont imLocale inputMethod insecure int_bwidth intensityStyles
957 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1154 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
958 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1155 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
959 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1156 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
960 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1157 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
961 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1158 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
962 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1159 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
963 shade term_name title transparent transparent_all tripleclickwords 1160 secondaryScreen secondaryScroll selectstyle shade term_name title
964 utmpInhibit visualBell 1161 transient_for transparent transparent_all tripleclickwords utmpInhibit
1162 visualBell
965 1163
966=cut 1164=cut
967 1165
968sub resource($$;$) { 1166sub resource($$;$) {
969 my ($self, $name) = (shift, shift); 1167 my ($self, $name) = (shift, shift);
1143 1341
1144Normally 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
1145confused by changes in cursor position or scrolling. Its useful inside a 1343confused by changes in cursor position or scrolling. Its useful inside a
1146C<on_add_lines> hook, though. 1344C<on_add_lines> hook, though.
1147 1345
1346=item $term->scr_change_screen ($screen)
1347
1348Switch to given screen - 0 primary, 1 secondary.
1349
1148=item $term->cmd_parse ($octets) 1350=item $term->cmd_parse ($octets)
1149 1351
1150Similar 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
1151locale-specific encoding of the terminal and can contain command sequences 1353locale-specific encoding of the terminal and can contain command sequences
1152(escape codes) that will be interpreted. 1354(escape codes) that will be interpreted.
1161 1363
1162Replaces 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
1163be 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
1164description of C<< urxvt::timer->events >>. Make sure to always restore 1366description of C<< urxvt::timer->events >>. Make sure to always restore
1165the previous value. 1367the previous value.
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.
1166 1373
1167=item $windowid = $term->parent 1374=item $windowid = $term->parent
1168 1375
1169Return the window id of the toplevel window. 1376Return the window id of the toplevel window.
1170 1377
1235=item $modifiermask = $term->ModNumLockMask 1442=item $modifiermask = $term->ModNumLockMask
1236 1443
1237Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1444Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1238AltGr), 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.
1239 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
1240=item $view_start = $term->view_start ([$newvalue]) 1455=item $view_start = $term->view_start ([$newvalue])
1241 1456
1242Returns the row number of the topmost displayed line. Maximum value is 1457Returns the row number of the topmost displayed line. Maximum value is
1243C<0>, which displays the normal terminal contents. Lower values scroll 1458C<0>, which displays the normal terminal contents. Lower values scroll
1244this many lines into the scrollback buffer. 1459this many lines into the scrollback buffer.
1263line, 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
1264to 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
1265automatically be updated. 1480automatically be updated.
1266 1481
1267C<$text> is in a special encoding: tabs and wide characters that use more 1482C<$text> is in a special encoding: tabs and wide characters that use more
1268than one cell when displayed are padded with urxvt::NOCHAR characters 1483than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1269(C<chr 65535>). Characters with combining characters and other characters 1484characters. Characters with combining characters and other characters that
1270that 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
1271characters in the private use area. 1486in the private use area.
1272 1487
1273You have to obey this encoding when changing text. The advantage is 1488You have to obey this encoding when changing text. The advantage is
1274that 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
1275characters. 1490characters.
1276 1491
1423=item $string = $term->special_decode $text 1638=item $string = $term->special_decode $text
1424 1639
1425Converts rxvt-unicodes text reprsentation into a perl string. See 1640Converts rxvt-unicodes text reprsentation into a perl string. See
1426C<< $term->ROW_t >> for details. 1641C<< $term->ROW_t >> for details.
1427 1642
1428=item $success = $term->grab_button ($button, $modifiermask) 1643=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1429 1644
1645=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1646
1430Registers a synchronous button grab. See the XGrabButton manpage. 1647Register/unregister a synchronous button grab. See the XGrabButton
1648manpage.
1431 1649
1432=item $success = $term->grab ($eventtime[, $sync]) 1650=item $success = $term->grab ($eventtime[, $sync])
1433 1651
1434Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1652Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1435synchronous (C<$sync> is true). Also remembers the grab timestampe. 1653synchronous (C<$sync> is true). Also remembers the grab timestampe.
1450=item $term->ungrab 1668=item $term->ungrab
1451 1669
1452Calls XUngrab for the most recent grab. Is called automatically on 1670Calls XUngrab for the most recent grab. Is called automatically on
1453evaluation 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
1454the 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.
1455 1703
1456=back 1704=back
1457 1705
1458=cut 1706=cut
1459 1707
1561 my $env = $self->{term}->env; 1809 my $env = $self->{term}->env;
1562 # 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.
1563 delete $env->{LC_ALL}; 1811 delete $env->{LC_ALL};
1564 $env->{LC_CTYPE} = $self->{term}->locale; 1812 $env->{LC_CTYPE} = $self->{term}->locale;
1565 1813
1566 urxvt::term->new ($env, $self->{term}->resource ("name"), 1814 urxvt::term->new ($env, "popup",
1567 "--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",
1568 "--transient-for" => $self->{term}->parent, 1818 "--transient-for" => $self->{term}->parent,
1569 "-display" => $self->{term}->display_id, 1819 "-display" => $self->{term}->display_id,
1570 "-pe" => "urxvt-popup") 1820 "-pe" => "urxvt-popup")
1571 or die "unable to create popup window\n"; 1821 or die "unable to create popup window\n";
1572} 1822}
1577 delete $self->{term}{_destroy}{$self}; 1827 delete $self->{term}{_destroy}{$self};
1578 $self->{term}->ungrab; 1828 $self->{term}->ungrab;
1579} 1829}
1580 1830
1581=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__;
1582 1841
1583=head2 The C<urxvt::timer> Class 1842=head2 The C<urxvt::timer> Class
1584 1843
1585This class implements timer watchers/events. Time is represented as a 1844This class implements timer watchers/events. Time is represented as a
1586fractional number of seconds since the epoch. Example: 1845fractional number of seconds since the epoch. Example:
1624Start the timer. 1883Start the timer.
1625 1884
1626=item $timer = $timer->start ($tstamp) 1885=item $timer = $timer->start ($tstamp)
1627 1886
1628Set 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>.
1629 1892
1630=item $timer = $timer->stop 1893=item $timer = $timer->stop
1631 1894
1632Stop the timer. 1895Stop the timer.
1633 1896
1680 1943
1681Stop watching for events on the given filehandle. 1944Stop watching for events on the given filehandle.
1682 1945
1683=back 1946=back
1684 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
1685=head1 ENVIRONMENT 2009=head1 ENVIRONMENT
1686 2010
1687=head2 URXVT_PERL_VERBOSITY 2011=head2 URXVT_PERL_VERBOSITY
1688 2012
1689This 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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