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Revision 1.110 by root, Thu Jan 19 16:22:13 2006 UTC vs.
Revision 1.125 by root, Sun Jan 22 20:39:47 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
87 91
88=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
89 93
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 94Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 96evaluation, web-browser starting etc.), depending on content.
93 97
94Other extensions can extend this popup menu by pushing a code reference 98Other extensions can extend this popup menu by pushing a code reference
95onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the 99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
96popup is displayed. 100popup is displayed.
97 101
123bottom. C<Escape> leaves search mode and returns to the point where search 127bottom. C<Escape> leaves search mode and returns to the point where search
124was started, while C<Enter> or C<Return> stay at the current position and 128was started, while C<Enter> or C<Return> stay at the current position and
125additionally stores the first match in the current line into the primary 129additionally stores the first match in the current line into the primary
126selection. 130selection.
127 131
132=item readline (enabled by default)
133
134A support package that tries to make editing with readline easier. At the
135moment, it reacts to clicking with the left mouse button by trying to
136move the text cursor to this position. It does so by generating as many
137cursor-left or cursor-right keypresses as required (the this only works
138for programs that correctly support wide characters).
139
140To avoid too many false positives, this is only done when:
141
142=over 4
143
144=item - the tty is in ICANON state.
145
146=item - the text cursor is visible.
147
148=item - the primary screen is currently being displayed.
149
150=item - the mouse is on the same (multi-row-) line as the text cursor.
151
152=back
153
154The normal selection mechanism isn't disabled, so quick successive clicks
155might interfere with selection creation in harmless ways.
156
128=item selection-autotransform 157=item selection-autotransform
129 158
130This selection allows you to do automatic transforms on a selection 159This selection allows you to do automatic transforms on a selection
131whenever a selection is made. 160whenever a selection is made.
132 161
157 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/ 186 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
158 187
159The first line tells the selection code to treat the unchanging part of 188The first line tells the selection code to treat the unchanging part of
160every error message as a selection pattern, and the second line transforms 189every error message as a selection pattern, and the second line transforms
161the message into vi commands to load the file. 190the message into vi commands to load the file.
191
192=item tabbed
193
194This transforms the terminal into a tabbar with additional terminals, that
195is, it implements what is commonly refered to as "tabbed terminal". The topmost line
196displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
197button per tab.
198
199Clicking a button will activate that tab. Pressing B<Shift-Left> and
200B<Shift-Right> will switch to the tab left or right of the current one,
201while B<Shift-Down> creates a new tab.
162 202
163=item mark-urls 203=item mark-urls
164 204
165Uses per-line display filtering (C<on_line_update>) to underline urls and 205Uses per-line display filtering (C<on_line_update>) to underline urls and
166make them clickable. When middle-clicked, the program specified in the 206make them clickable. When middle-clicked, the program specified in the
299called whenever the relevant event happens. 339called whenever the relevant event happens.
300 340
301The first argument passed to them is an extension oject as described in 341The first argument passed to them is an extension oject as described in
302the in the C<Extension Objects> section. 342the in the C<Extension Objects> section.
303 343
304B<All> of these hooks must return a boolean value. If it is true, then the 344B<All> of these hooks must return a boolean value. If any of the called
305event counts as being I<consumed>, and the invocation of other hooks is 345hooks returns true, then the event counts as being I<consumed>, and the
306skipped, and the relevant action might not be carried out by the C++ code. 346relevant action might not be carried out by the C++ code.
307 347
308I<< When in doubt, return a false value (preferably C<()>). >> 348I<< When in doubt, return a false value (preferably C<()>). >>
309 349
310=over 4 350=over 4
311 351
312=item on_init $term 352=item on_init $term
313 353
314Called after a new terminal object has been initialized, but before 354Called after a new terminal object has been initialized, but before
315windows are created or the command gets run. Most methods are unsafe to 355windows are created or the command gets run. Most methods are unsafe to
316call or deliver senseless data, as terminal size and other characteristics 356call or deliver senseless data, as terminal size and other characteristics
317have not yet been determined. You can safely query and change resources, 357have not yet been determined. You can safely query and change resources
318though. 358and options, though. For many purposes the C<on_start> hook is a better
359place.
360
361=item on_start $term
362
363Called at the very end of initialisation of a new terminal, just before
364trying to map (display) the toplevel and returning to the mainloop.
365
366=item on_destroy $term
367
368Called whenever something tries to destroy terminal, before doing anything
369yet. If this hook returns true, then destruction is skipped, but this is
370rarely a good idea.
319 371
320=item on_reset $term 372=item on_reset $term
321 373
322Called after the screen is "reset" for any reason, such as resizing or 374Called after the screen is "reset" for any reason, such as resizing or
323control sequences. Here is where you can react on changes to size-related 375control sequences. Here is where you can react on changes to size-related
324variables. 376variables.
325
326=item on_start $term
327
328Called at the very end of initialisation of a new terminal, just before
329returning to the mainloop.
330 377
331=item on_child_start $term, $pid 378=item on_child_start $term, $pid
332 379
333Called just after the child process has been C<fork>ed. 380Called just after the child process has been C<fork>ed.
334 381
454Called wheneever the window loses keyboard focus, before rxvt-unicode does 501Called wheneever the window loses keyboard focus, before rxvt-unicode does
455focus out processing. 502focus out processing.
456 503
457=item on_configure_notify $term, $event 504=item on_configure_notify $term, $event
458 505
506=item on_property_notify $term, $event
507
459=item on_key_press $term, $event, $keysym, $octets 508=item on_key_press $term, $event, $keysym, $octets
460 509
461=item on_key_release $term, $event, $keysym 510=item on_key_release $term, $event, $keysym
462 511
463=item on_button_press $term, $event 512=item on_button_press $term, $event
472 521
473Called whenever the corresponding X event is received for the terminal If 522Called whenever the corresponding X event is received for the terminal If
474the hook returns true, then the even will be ignored by rxvt-unicode. 523the hook returns true, then the even will be ignored by rxvt-unicode.
475 524
476The event is a hash with most values as named by Xlib (see the XEvent 525The event is a hash with most values as named by Xlib (see the XEvent
477manpage), with the additional members C<row> and C<col>, which are the row 526manpage), with the additional members C<row> and C<col>, which are the
478and column under the mouse cursor. 527(real, not screen-based) row and column under the mouse cursor.
479 528
480C<on_key_press> additionally receives the string rxvt-unicode would 529C<on_key_press> additionally receives the string rxvt-unicode would
481output, if any, in locale-specific encoding. 530output, if any, in locale-specific encoding.
482 531
483subwindow. 532subwindow.
533
534=item on_client_message $term, $event
535
536=item on_wm_protocols $term, $event
537
538=item on_wm_delete_window $term, $event
539
540Called when various types of ClientMessage events are received (all with
541format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
484 542
485=back 543=back
486 544
487=cut 545=cut
488 546
494use Scalar::Util (); 552use Scalar::Util ();
495use List::Util (); 553use List::Util ();
496 554
497our $VERSION = 1; 555our $VERSION = 1;
498our $TERM; 556our $TERM;
557our @TERM_INIT;
558our @TERM_EXT;
499our @HOOKNAME; 559our @HOOKNAME;
500our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 560our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
501our %OPTION; 561our %OPTION;
502 562
503our $LIBDIR; 563our $LIBDIR;
504our $RESNAME; 564our $RESNAME;
505our $RESCLASS; 565our $RESCLASS;
506our $RXVTNAME; 566our $RXVTNAME;
507 567
568our $NOCHAR = chr 0xffff;
569
508=head2 Variables in the C<urxvt> Package 570=head2 Variables in the C<urxvt> Package
509 571
510=over 4 572=over 4
511 573
512=item $urxvt::LIBDIR 574=item $urxvt::LIBDIR
524 586
525=item $urxvt::TERM 587=item $urxvt::TERM
526 588
527The current terminal. This variable stores the current C<urxvt::term> 589The current terminal. This variable stores the current C<urxvt::term>
528object, whenever a callback/hook is executing. 590object, whenever a callback/hook is executing.
591
592=item @urxvt::TERM_INIT
593
594All coderefs in this array will be called as methods of the next newly
595created C<urxvt::term> object (during the C<on_init> phase). The array
596gets cleared before the codereferences that were in it are being executed,
597so coderefs can push themselves onto it again if they so desire.
598
599This complements to the perl-eval commandline option, but gets executed
600first.
601
602=item @urxvt::TERM_EXT
603
604Works similar to C<@TERM_INIT>, but contains perl package/class names, which
605get registered as normal extensions after calling the hooks in C<@TERM_INIT>
606but before other extensions. Gets cleared just like C<@TERM_INIT>.
529 607
530=back 608=back
531 609
532=head2 Functions in the C<urxvt> Package 610=head2 Functions in the C<urxvt> Package
533 611
642 unless $msg =~ /\n$/; 720 unless $msg =~ /\n$/;
643 urxvt::warn ($msg); 721 urxvt::warn ($msg);
644 }; 722 };
645} 723}
646 724
725no warnings 'utf8';
726
647my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 727my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
648 728
649sub verbose { 729sub verbose {
650 my ($level, $msg) = @_; 730 my ($level, $msg) = @_;
651 warn "$msg\n" if $level <= $verbosity; 731 warn "$msg\n" if $level <= $verbosity;
654my %extension_pkg; 734my %extension_pkg;
655 735
656# load a single script into its own package, once only 736# load a single script into its own package, once only
657sub extension_package($) { 737sub extension_package($) {
658 my ($path) = @_; 738 my ($path) = @_;
659
660 no strict 'refs';
661 739
662 $extension_pkg{$path} ||= do { 740 $extension_pkg{$path} ||= do {
663 $path =~ /([^\/\\]+)$/; 741 $path =~ /([^\/\\]+)$/;
664 my $pkg = $1; 742 my $pkg = $1;
665 $pkg =~ s/[^[:word:]]/_/g; 743 $pkg =~ s/[^[:word:]]/_/g;
668 verbose 3, "loading extension '$path' into package '$pkg'"; 746 verbose 3, "loading extension '$path' into package '$pkg'";
669 747
670 open my $fh, "<:raw", $path 748 open my $fh, "<:raw", $path
671 or die "$path: $!"; 749 or die "$path: $!";
672 750
673 @{"$pkg\::ISA"} = urxvt::term::extension::;
674
675 my $source = 751 my $source =
676 "package $pkg; use strict; use utf8;\n" 752 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
677 . "#line 1 \"$path\"\n{\n" 753 . "#line 1 \"$path\"\n{\n"
678 . (do { local $/; <$fh> }) 754 . (do { local $/; <$fh> })
679 . "\n};\n1"; 755 . "\n};\n1";
680 756
681 eval $source 757 eval $source
695 if ($htype == 0) { # INIT 771 if ($htype == 0) { # INIT
696 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 772 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
697 773
698 my %ext_arg; 774 my %ext_arg;
699 775
776 {
777 my @init = @TERM_INIT;
778 @TERM_INIT = ();
779 $_->($TERM) for @init;
780 my @pkg = @TERM_EXT;
781 @TERM_EXT = ();
782 $TERM->register_package ($_) for @pkg;
783 }
784
700 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 785 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
701 if ($_ eq "default") { 786 if ($_ eq "default") {
702 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 787 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
703 } elsif (/^-(.*)$/) { 788 } elsif (/^-(.*)$/) {
704 delete $ext_arg{$1}; 789 delete $ext_arg{$1};
705 } elsif (/^([^<]+)<(.*)>$/) { 790 } elsif (/^([^<]+)<(.*)>$/) {
706 push @{ $ext_arg{$1} }, $2; 791 push @{ $ext_arg{$1} }, $2;
707 } else { 792 } else {
730 if $verbosity >= 10; 815 if $verbosity >= 10;
731 816
732 keys %$cb; 817 keys %$cb;
733 818
734 while (my ($pkg, $cb) = each %$cb) { 819 while (my ($pkg, $cb) = each %$cb) {
735 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 820 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
736 and last; 821 $retval ||= $retval_;
737 822
738 if ($@) { 823 if ($@) {
739 $TERM->ungrab; # better to lose the grab than the session 824 $TERM->ungrab; # better to lose the grab than the session
740 warn $@; 825 warn $@;
741 } 826 }
899 984
900# find on_xxx subs in the package and register them 985# find on_xxx subs in the package and register them
901# as hooks 986# as hooks
902sub register_package { 987sub register_package {
903 my ($self, $pkg, $argv) = @_; 988 my ($self, $pkg, $argv) = @_;
989
990 no strict 'refs';
991
992 urxvt::verbose 6, "register package $pkg to $self";
993
994 @{"$pkg\::ISA"} = urxvt::term::extension::;
904 995
905 my $proxy = bless { 996 my $proxy = bless {
906 _pkg => $pkg, 997 _pkg => $pkg,
907 argv => $argv, 998 argv => $argv,
908 }, $pkg; 999 }, $pkg;
1198 1289
1199Normally its not a good idea to use this function, as programs might be 1290Normally its not a good idea to use this function, as programs might be
1200confused by changes in cursor position or scrolling. Its useful inside a 1291confused by changes in cursor position or scrolling. Its useful inside a
1201C<on_add_lines> hook, though. 1292C<on_add_lines> hook, though.
1202 1293
1294=item $term->scr_change_screen ($screen)
1295
1296Switch to given screen - 0 primary, 1 secondary.
1297
1203=item $term->cmd_parse ($octets) 1298=item $term->cmd_parse ($octets)
1204 1299
1205Similar to C<scr_add_lines>, but the argument must be in the 1300Similar to C<scr_add_lines>, but the argument must be in the
1206locale-specific encoding of the terminal and can contain command sequences 1301locale-specific encoding of the terminal and can contain command sequences
1207(escape codes) that will be interpreted. 1302(escape codes) that will be interpreted.
1216 1311
1217Replaces the event mask of the pty watcher by the given event mask. Can 1312Replaces the event mask of the pty watcher by the given event mask. Can
1218be used to suppress input and output handling to the pty/tty. See the 1313be used to suppress input and output handling to the pty/tty. See the
1219description of C<< urxvt::timer->events >>. Make sure to always restore 1314description of C<< urxvt::timer->events >>. Make sure to always restore
1220the previous value. 1315the previous value.
1316
1317=item $fd = $term->pty_fd
1318
1319Returns the master file descriptor for the pty in use, or C<-1> if no pty
1320is used.
1221 1321
1222=item $windowid = $term->parent 1322=item $windowid = $term->parent
1223 1323
1224Return the window id of the toplevel window. 1324Return the window id of the toplevel window.
1225 1325
1290=item $modifiermask = $term->ModNumLockMask 1390=item $modifiermask = $term->ModNumLockMask
1291 1391
1292Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1392Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1293AltGr), the meta key (often Alt) and the num lock key, if applicable. 1393AltGr), the meta key (often Alt) and the num lock key, if applicable.
1294 1394
1395=item $screen = $term->current_screen
1396
1397Returns the currently displayed screen (0 primary, 1 secondary).
1398
1399=item $cursor_is_hidden = $term->hidden_cursor
1400
1401Returns wether the cursor is currently hidden or not.
1402
1295=item $view_start = $term->view_start ([$newvalue]) 1403=item $view_start = $term->view_start ([$newvalue])
1296 1404
1297Returns the row number of the topmost displayed line. Maximum value is 1405Returns the row number of the topmost displayed line. Maximum value is
1298C<0>, which displays the normal terminal contents. Lower values scroll 1406C<0>, which displays the normal terminal contents. Lower values scroll
1299this many lines into the scrollback buffer. 1407this many lines into the scrollback buffer.
1318line, starting at column C<$start_col> (default C<0>), which is useful 1426line, starting at column C<$start_col> (default C<0>), which is useful
1319to replace only parts of a line. The font index in the rendition will 1427to replace only parts of a line. The font index in the rendition will
1320automatically be updated. 1428automatically be updated.
1321 1429
1322C<$text> is in a special encoding: tabs and wide characters that use more 1430C<$text> is in a special encoding: tabs and wide characters that use more
1323than one cell when displayed are padded with urxvt::NOCHAR characters 1431than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1324(C<chr 65535>). Characters with combining characters and other characters 1432characters. Characters with combining characters and other characters that
1325that do not fit into the normal tetx encoding will be replaced with 1433do not fit into the normal tetx encoding will be replaced with characters
1326characters in the private use area. 1434in the private use area.
1327 1435
1328You have to obey this encoding when changing text. The advantage is 1436You have to obey this encoding when changing text. The advantage is
1329that C<substr> and similar functions work on screen cells and not on 1437that C<substr> and similar functions work on screen cells and not on
1330characters. 1438characters.
1331 1439
1505=item $term->ungrab 1613=item $term->ungrab
1506 1614
1507Calls XUngrab for the most recent grab. Is called automatically on 1615Calls XUngrab for the most recent grab. Is called automatically on
1508evaluation errors, as it is better to lose the grab in the error case as 1616evaluation errors, as it is better to lose the grab in the error case as
1509the session. 1617the session.
1618
1619=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1620
1621=item $atom_name = $term->XGetAtomName ($atom)
1622
1623=item @atoms = $term->XListProperties ($window)
1624
1625=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1626
1627=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1628
1629=item $term->XDeleteProperty ($window, $property)
1630
1631=item $window = $term->DefaultRootWindow
1632
1633=item $term->XReparentWindow ($window, $parent, [$x, $y])
1634
1635=item $term->XMapWindow ($window)
1636
1637=item $term->XUnmapWindow ($window)
1638
1639=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1640
1641=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1642
1643=item $term->XChangeInput ($window, $add_events[, $del_events])
1644
1645Various X or X-related functions. The C<$term> object only serves as
1646the source of the display, otherwise those functions map more-or-less
1647directory onto the X functions of the same name.
1510 1648
1511=back 1649=back
1512 1650
1513=cut 1651=cut
1514 1652
1634 delete $self->{term}{_destroy}{$self}; 1772 delete $self->{term}{_destroy}{$self};
1635 $self->{term}->ungrab; 1773 $self->{term}->ungrab;
1636} 1774}
1637 1775
1638=back 1776=back
1777
1778=cut
1779
1780package urxvt::watcher;
1781
1782@urxvt::timer::ISA = __PACKAGE__;
1783@urxvt::iow::ISA = __PACKAGE__;
1784@urxvt::pw::ISA = __PACKAGE__;
1785@urxvt::iw::ISA = __PACKAGE__;
1639 1786
1640=head2 The C<urxvt::timer> Class 1787=head2 The C<urxvt::timer> Class
1641 1788
1642This class implements timer watchers/events. Time is represented as a 1789This class implements timer watchers/events. Time is represented as a
1643fractional number of seconds since the epoch. Example: 1790fractional number of seconds since the epoch. Example:
1741 1888
1742Stop watching for events on the given filehandle. 1889Stop watching for events on the given filehandle.
1743 1890
1744=back 1891=back
1745 1892
1893=head2 The C<urxvt::iw> Class
1894
1895This class implements idle watchers, that get called automatically when
1896the process is idle. They should return as fast as possible, after doing
1897some useful work.
1898
1899=over 4
1900
1901=item $iw = new urxvt::iw
1902
1903Create a new idle watcher object in stopped state.
1904
1905=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1906
1907Set the callback to be called when the watcher triggers.
1908
1909=item $timer = $timer->start
1910
1911Start the watcher.
1912
1913=item $timer = $timer->stop
1914
1915Stop the watcher.
1916
1917=back
1918
1919=head2 The C<urxvt::pw> Class
1920
1921This class implements process watchers. They create an event whenever a
1922process exits, after which they stop automatically.
1923
1924 my $pid = fork;
1925 ...
1926 $term->{pw} = urxvt::pw
1927 ->new
1928 ->start ($pid)
1929 ->cb (sub {
1930 my ($pw, $exit_status) = @_;
1931 ...
1932 });
1933
1934=over 4
1935
1936=item $pw = new urxvt::pw
1937
1938Create a new process watcher in stopped state.
1939
1940=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1941
1942Set the callback to be called when the timer triggers.
1943
1944=item $pw = $timer->start ($pid)
1945
1946Tells the wqtcher to start watching for process C<$pid>.
1947
1948=item $pw = $pw->stop
1949
1950Stop the watcher.
1951
1952=back
1953
1746=head1 ENVIRONMENT 1954=head1 ENVIRONMENT
1747 1955
1748=head2 URXVT_PERL_VERBOSITY 1956=head2 URXVT_PERL_VERBOSITY
1749 1957
1750This variable controls the verbosity level of the perl extension. Higher 1958This variable controls the verbosity level of the perl extension. Higher

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