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Revision 1.110 by root, Thu Jan 19 16:22:13 2006 UTC vs.
Revision 1.124 by root, Sun Jan 22 11:57:06 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<@{ $term->{selection_popup_hook} }>, that is called whenever the
96popup is displayed. 100popup is displayed.
97 101
123bottom. C<Escape> leaves search mode and returns to the point where search 127bottom. C<Escape> leaves search mode and returns to the point where search
124was started, while C<Enter> or C<Return> stay at the current position and 128was started, while C<Enter> or C<Return> stay at the current position and
125additionally stores the first match in the current line into the primary 129additionally stores the first match in the current line into the primary
126selection. 130selection.
127 131
132=item readline (enabled by default)
133
134A support package that tries to make editing with readline easier. At the
135moment, it reacts to clicking with the left mouse button by trying to
136move the text cursor to this position. It does so by generating as many
137cursor-left or cursor-right keypresses as required (the this only works
138for programs that correctly support wide characters).
139
140To avoid too many false positives, this is only done when:
141
142=over 4
143
144=item - the mouse is on the same (multi-row-) line as the text cursor.
145
146=item - the primary screen is currently being displayed.
147
148=item - the text cursor is visible.
149
150=back
151
152The normal selection mechanism isn't disabled, so quick successive clicks
153might interfere with selection creation in harmless ways.
154
128=item selection-autotransform 155=item selection-autotransform
129 156
130This selection allows you to do automatic transforms on a selection 157This selection allows you to do automatic transforms on a selection
131whenever a selection is made. 158whenever a selection is made.
132 159
157 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/ 184 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
158 185
159The first line tells the selection code to treat the unchanging part of 186The first line tells the selection code to treat the unchanging part of
160every error message as a selection pattern, and the second line transforms 187every error message as a selection pattern, and the second line transforms
161the message into vi commands to load the file. 188the message into vi commands to load the file.
189
190=item tabbed
191
192This transforms the terminal into a tabbar with additional terminals, that
193is, it implements what is commonly refered to as "tabbed terminal". The topmost line
194displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
195button per tab.
196
197Clicking a button will activate that tab. Pressing B<Shift-Left> and
198B<Shift-Right> will switch to the tab left or right of the current one,
199while B<Shift-Down> creates a new tab.
162 200
163=item mark-urls 201=item mark-urls
164 202
165Uses per-line display filtering (C<on_line_update>) to underline urls and 203Uses per-line display filtering (C<on_line_update>) to underline urls and
166make them clickable. When middle-clicked, the program specified in the 204make them clickable. When middle-clicked, the program specified in the
299called whenever the relevant event happens. 337called whenever the relevant event happens.
300 338
301The first argument passed to them is an extension oject as described in 339The first argument passed to them is an extension oject as described in
302the in the C<Extension Objects> section. 340the in the C<Extension Objects> section.
303 341
304B<All> of these hooks must return a boolean value. If it is true, then the 342B<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 343hooks 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. 344relevant action might not be carried out by the C++ code.
307 345
308I<< When in doubt, return a false value (preferably C<()>). >> 346I<< When in doubt, return a false value (preferably C<()>). >>
309 347
310=over 4 348=over 4
311 349
312=item on_init $term 350=item on_init $term
313 351
314Called after a new terminal object has been initialized, but before 352Called after a new terminal object has been initialized, but before
315windows are created or the command gets run. Most methods are unsafe to 353windows are created or the command gets run. Most methods are unsafe to
316call or deliver senseless data, as terminal size and other characteristics 354call or deliver senseless data, as terminal size and other characteristics
317have not yet been determined. You can safely query and change resources, 355have not yet been determined. You can safely query and change resources
318though. 356and options, though. For many purposes the C<on_start> hook is a better
357place.
358
359=item on_start $term
360
361Called at the very end of initialisation of a new terminal, just before
362trying to map (display) the toplevel and returning to the mainloop.
363
364=item on_destroy $term
365
366Called whenever something tries to destroy terminal, before doing anything
367yet. If this hook returns true, then destruction is skipped, but this is
368rarely a good idea.
319 369
320=item on_reset $term 370=item on_reset $term
321 371
322Called after the screen is "reset" for any reason, such as resizing or 372Called 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 373control sequences. Here is where you can react on changes to size-related
324variables. 374variables.
325
326=item on_start $term
327
328Called at the very end of initialisation of a new terminal, just before
329returning to the mainloop.
330 375
331=item on_child_start $term, $pid 376=item on_child_start $term, $pid
332 377
333Called just after the child process has been C<fork>ed. 378Called just after the child process has been C<fork>ed.
334 379
454Called wheneever the window loses keyboard focus, before rxvt-unicode does 499Called wheneever the window loses keyboard focus, before rxvt-unicode does
455focus out processing. 500focus out processing.
456 501
457=item on_configure_notify $term, $event 502=item on_configure_notify $term, $event
458 503
504=item on_property_notify $term, $event
505
459=item on_key_press $term, $event, $keysym, $octets 506=item on_key_press $term, $event, $keysym, $octets
460 507
461=item on_key_release $term, $event, $keysym 508=item on_key_release $term, $event, $keysym
462 509
463=item on_button_press $term, $event 510=item on_button_press $term, $event
472 519
473Called whenever the corresponding X event is received for the terminal If 520Called whenever the corresponding X event is received for the terminal If
474the hook returns true, then the even will be ignored by rxvt-unicode. 521the hook returns true, then the even will be ignored by rxvt-unicode.
475 522
476The event is a hash with most values as named by Xlib (see the XEvent 523The 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 524manpage), with the additional members C<row> and C<col>, which are the
478and column under the mouse cursor. 525(real, not screen-based) row and column under the mouse cursor.
479 526
480C<on_key_press> additionally receives the string rxvt-unicode would 527C<on_key_press> additionally receives the string rxvt-unicode would
481output, if any, in locale-specific encoding. 528output, if any, in locale-specific encoding.
482 529
483subwindow. 530subwindow.
531
532=item on_client_message $term, $event
533
534=item on_wm_protocols $term, $event
535
536=item on_wm_delete_window $term, $event
537
538Called when various types of ClientMessage events are received (all with
539format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
484 540
485=back 541=back
486 542
487=cut 543=cut
488 544
494use Scalar::Util (); 550use Scalar::Util ();
495use List::Util (); 551use List::Util ();
496 552
497our $VERSION = 1; 553our $VERSION = 1;
498our $TERM; 554our $TERM;
555our @TERM_INIT;
556our @TERM_EXT;
499our @HOOKNAME; 557our @HOOKNAME;
500our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 558our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
501our %OPTION; 559our %OPTION;
502 560
503our $LIBDIR; 561our $LIBDIR;
504our $RESNAME; 562our $RESNAME;
505our $RESCLASS; 563our $RESCLASS;
506our $RXVTNAME; 564our $RXVTNAME;
507 565
566our $NOCHAR = chr 0xffff;
567
508=head2 Variables in the C<urxvt> Package 568=head2 Variables in the C<urxvt> Package
509 569
510=over 4 570=over 4
511 571
512=item $urxvt::LIBDIR 572=item $urxvt::LIBDIR
524 584
525=item $urxvt::TERM 585=item $urxvt::TERM
526 586
527The current terminal. This variable stores the current C<urxvt::term> 587The current terminal. This variable stores the current C<urxvt::term>
528object, whenever a callback/hook is executing. 588object, whenever a callback/hook is executing.
589
590=item @urxvt::TERM_INIT
591
592All coderefs in this array will be called as methods of the next newly
593created C<urxvt::term> object (during the C<on_init> phase). The array
594gets cleared before the codereferences that were in it are being executed,
595so coderefs can push themselves onto it again if they so desire.
596
597This complements to the perl-eval commandline option, but gets executed
598first.
599
600=item @urxvt::TERM_EXT
601
602Works similar to C<@TERM_INIT>, but contains perl package/class names, which
603get registered as normal extensions after calling the hooks in C<@TERM_INIT>
604but before other extensions. Gets cleared just like C<@TERM_INIT>.
529 605
530=back 606=back
531 607
532=head2 Functions in the C<urxvt> Package 608=head2 Functions in the C<urxvt> Package
533 609
642 unless $msg =~ /\n$/; 718 unless $msg =~ /\n$/;
643 urxvt::warn ($msg); 719 urxvt::warn ($msg);
644 }; 720 };
645} 721}
646 722
723no warnings 'utf8';
724
647my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 725my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
648 726
649sub verbose { 727sub verbose {
650 my ($level, $msg) = @_; 728 my ($level, $msg) = @_;
651 warn "$msg\n" if $level <= $verbosity; 729 warn "$msg\n" if $level <= $verbosity;
654my %extension_pkg; 732my %extension_pkg;
655 733
656# load a single script into its own package, once only 734# load a single script into its own package, once only
657sub extension_package($) { 735sub extension_package($) {
658 my ($path) = @_; 736 my ($path) = @_;
659
660 no strict 'refs';
661 737
662 $extension_pkg{$path} ||= do { 738 $extension_pkg{$path} ||= do {
663 $path =~ /([^\/\\]+)$/; 739 $path =~ /([^\/\\]+)$/;
664 my $pkg = $1; 740 my $pkg = $1;
665 $pkg =~ s/[^[:word:]]/_/g; 741 $pkg =~ s/[^[:word:]]/_/g;
668 verbose 3, "loading extension '$path' into package '$pkg'"; 744 verbose 3, "loading extension '$path' into package '$pkg'";
669 745
670 open my $fh, "<:raw", $path 746 open my $fh, "<:raw", $path
671 or die "$path: $!"; 747 or die "$path: $!";
672 748
673 @{"$pkg\::ISA"} = urxvt::term::extension::;
674
675 my $source = 749 my $source =
676 "package $pkg; use strict; use utf8;\n" 750 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
677 . "#line 1 \"$path\"\n{\n" 751 . "#line 1 \"$path\"\n{\n"
678 . (do { local $/; <$fh> }) 752 . (do { local $/; <$fh> })
679 . "\n};\n1"; 753 . "\n};\n1";
680 754
681 eval $source 755 eval $source
695 if ($htype == 0) { # INIT 769 if ($htype == 0) { # INIT
696 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 770 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
697 771
698 my %ext_arg; 772 my %ext_arg;
699 773
774 {
775 my @init = @TERM_INIT;
776 @TERM_INIT = ();
777 $_->($TERM) for @init;
778 my @pkg = @TERM_EXT;
779 @TERM_EXT = ();
780 $TERM->register_package ($_) for @pkg;
781 }
782
700 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 783 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
701 if ($_ eq "default") { 784 if ($_ eq "default") {
702 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 785 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
703 } elsif (/^-(.*)$/) { 786 } elsif (/^-(.*)$/) {
704 delete $ext_arg{$1}; 787 delete $ext_arg{$1};
705 } elsif (/^([^<]+)<(.*)>$/) { 788 } elsif (/^([^<]+)<(.*)>$/) {
706 push @{ $ext_arg{$1} }, $2; 789 push @{ $ext_arg{$1} }, $2;
707 } else { 790 } else {
730 if $verbosity >= 10; 813 if $verbosity >= 10;
731 814
732 keys %$cb; 815 keys %$cb;
733 816
734 while (my ($pkg, $cb) = each %$cb) { 817 while (my ($pkg, $cb) = each %$cb) {
735 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 818 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
736 and last; 819 $retval ||= $retval_;
737 820
738 if ($@) { 821 if ($@) {
739 $TERM->ungrab; # better to lose the grab than the session 822 $TERM->ungrab; # better to lose the grab than the session
740 warn $@; 823 warn $@;
741 } 824 }
899 982
900# find on_xxx subs in the package and register them 983# find on_xxx subs in the package and register them
901# as hooks 984# as hooks
902sub register_package { 985sub register_package {
903 my ($self, $pkg, $argv) = @_; 986 my ($self, $pkg, $argv) = @_;
987
988 no strict 'refs';
989
990 urxvt::verbose 6, "register package $pkg to $self";
991
992 @{"$pkg\::ISA"} = urxvt::term::extension::;
904 993
905 my $proxy = bless { 994 my $proxy = bless {
906 _pkg => $pkg, 995 _pkg => $pkg,
907 argv => $argv, 996 argv => $argv,
908 }, $pkg; 997 }, $pkg;
1198 1287
1199Normally its not a good idea to use this function, as programs might be 1288Normally 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 1289confused by changes in cursor position or scrolling. Its useful inside a
1201C<on_add_lines> hook, though. 1290C<on_add_lines> hook, though.
1202 1291
1292=item $term->scr_change_screen ($screen)
1293
1294Switch to given screen - 0 primary, 1 secondary.
1295
1203=item $term->cmd_parse ($octets) 1296=item $term->cmd_parse ($octets)
1204 1297
1205Similar to C<scr_add_lines>, but the argument must be in the 1298Similar to C<scr_add_lines>, but the argument must be in the
1206locale-specific encoding of the terminal and can contain command sequences 1299locale-specific encoding of the terminal and can contain command sequences
1207(escape codes) that will be interpreted. 1300(escape codes) that will be interpreted.
1290=item $modifiermask = $term->ModNumLockMask 1383=item $modifiermask = $term->ModNumLockMask
1291 1384
1292Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1385Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1293AltGr), the meta key (often Alt) and the num lock key, if applicable. 1386AltGr), the meta key (often Alt) and the num lock key, if applicable.
1294 1387
1388=item $screen = $term->current_screen
1389
1390Returns the currently displayed screen (0 primary, 1 secondary).
1391
1392=item $cursor_is_hidden = $term->hidden_cursor
1393
1394Returns wether the cursor is currently hidden or not.
1395
1295=item $view_start = $term->view_start ([$newvalue]) 1396=item $view_start = $term->view_start ([$newvalue])
1296 1397
1297Returns the row number of the topmost displayed line. Maximum value is 1398Returns the row number of the topmost displayed line. Maximum value is
1298C<0>, which displays the normal terminal contents. Lower values scroll 1399C<0>, which displays the normal terminal contents. Lower values scroll
1299this many lines into the scrollback buffer. 1400this many lines into the scrollback buffer.
1318line, starting at column C<$start_col> (default C<0>), which is useful 1419line, starting at column C<$start_col> (default C<0>), which is useful
1319to replace only parts of a line. The font index in the rendition will 1420to replace only parts of a line. The font index in the rendition will
1320automatically be updated. 1421automatically be updated.
1321 1422
1322C<$text> is in a special encoding: tabs and wide characters that use more 1423C<$text> is in a special encoding: tabs and wide characters that use more
1323than one cell when displayed are padded with urxvt::NOCHAR characters 1424than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1324(C<chr 65535>). Characters with combining characters and other characters 1425characters. Characters with combining characters and other characters that
1325that do not fit into the normal tetx encoding will be replaced with 1426do not fit into the normal tetx encoding will be replaced with characters
1326characters in the private use area. 1427in the private use area.
1327 1428
1328You have to obey this encoding when changing text. The advantage is 1429You have to obey this encoding when changing text. The advantage is
1329that C<substr> and similar functions work on screen cells and not on 1430that C<substr> and similar functions work on screen cells and not on
1330characters. 1431characters.
1331 1432
1505=item $term->ungrab 1606=item $term->ungrab
1506 1607
1507Calls XUngrab for the most recent grab. Is called automatically on 1608Calls 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 1609evaluation errors, as it is better to lose the grab in the error case as
1509the session. 1610the session.
1611
1612=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1613
1614=item $atom_name = $term->XGetAtomName ($atom)
1615
1616=item @atoms = $term->XListProperties ($window)
1617
1618=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1619
1620=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1621
1622=item $term->XDeleteProperty ($window, $property)
1623
1624=item $window = $term->DefaultRootWindow
1625
1626=item $term->XReparentWindow ($window, $parent, [$x, $y])
1627
1628=item $term->XMapWindow ($window)
1629
1630=item $term->XUnmapWindow ($window)
1631
1632=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1633
1634=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1635
1636=item $term->XChangeInput ($window, $add_events[, $del_events])
1637
1638Various X or X-related functions. The C<$term> object only serves as
1639the source of the display, otherwise those functions map more-or-less
1640directory onto the X functions of the same name.
1510 1641
1511=back 1642=back
1512 1643
1513=cut 1644=cut
1514 1645
1634 delete $self->{term}{_destroy}{$self}; 1765 delete $self->{term}{_destroy}{$self};
1635 $self->{term}->ungrab; 1766 $self->{term}->ungrab;
1636} 1767}
1637 1768
1638=back 1769=back
1770
1771=cut
1772
1773package urxvt::watcher;
1774
1775@urxvt::timer::ISA = __PACKAGE__;
1776@urxvt::iow::ISA = __PACKAGE__;
1777@urxvt::pw::ISA = __PACKAGE__;
1778@urxvt::iw::ISA = __PACKAGE__;
1639 1779
1640=head2 The C<urxvt::timer> Class 1780=head2 The C<urxvt::timer> Class
1641 1781
1642This class implements timer watchers/events. Time is represented as a 1782This class implements timer watchers/events. Time is represented as a
1643fractional number of seconds since the epoch. Example: 1783fractional number of seconds since the epoch. Example:
1741 1881
1742Stop watching for events on the given filehandle. 1882Stop watching for events on the given filehandle.
1743 1883
1744=back 1884=back
1745 1885
1886=head2 The C<urxvt::iw> Class
1887
1888This class implements idle watchers, that get called automatically when
1889the process is idle. They should return as fast as possible, after doing
1890some useful work.
1891
1892=over 4
1893
1894=item $iw = new urxvt::iw
1895
1896Create a new idle watcher object in stopped state.
1897
1898=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1899
1900Set the callback to be called when the watcher triggers.
1901
1902=item $timer = $timer->start
1903
1904Start the watcher.
1905
1906=item $timer = $timer->stop
1907
1908Stop the watcher.
1909
1910=back
1911
1912=head2 The C<urxvt::pw> Class
1913
1914This class implements process watchers. They create an event whenever a
1915process exits, after which they stop automatically.
1916
1917 my $pid = fork;
1918 ...
1919 $term->{pw} = urxvt::pw
1920 ->new
1921 ->start ($pid)
1922 ->cb (sub {
1923 my ($pw, $exit_status) = @_;
1924 ...
1925 });
1926
1927=over 4
1928
1929=item $pw = new urxvt::pw
1930
1931Create a new process watcher in stopped state.
1932
1933=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1934
1935Set the callback to be called when the timer triggers.
1936
1937=item $pw = $timer->start ($pid)
1938
1939Tells the wqtcher to start watching for process C<$pid>.
1940
1941=item $pw = $pw->stop
1942
1943Stop the watcher.
1944
1945=back
1946
1746=head1 ENVIRONMENT 1947=head1 ENVIRONMENT
1747 1948
1748=head2 URXVT_PERL_VERBOSITY 1949=head2 URXVT_PERL_VERBOSITY
1749 1950
1750This variable controls the verbosity level of the perl extension. Higher 1951This variable controls the verbosity level of the perl extension. Higher

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