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Revision 1.112 by root, Thu Jan 19 21:02:06 2006 UTC vs.
Revision 1.128 by root, Wed Jan 25 00:57:57 2006 UTC

67the match. For example, the followign adds a regex that matches everything 67the match. For example, the followign adds a regex that matches everything
68between two vertical bars: 68between two vertical bars:
69 69
70 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71 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
72You 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
73interesting uses, such as parsing a line from beginning to end. 80interesting uses, such as parsing a line from beginning to end.
74 81
75This extension also offers following bindable keyboard commands: 82This extension also offers following bindable keyboard commands:
76 83
91 98
92=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
93 100
94Binds 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
95text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
96evalution, web-browser starting etc.), depending on content. 103evaluation, web-browser starting etc.), depending on content.
97 104
98Other extensions can extend this popup menu by pushing a code reference 105Other extensions can extend this popup menu by pushing a code reference
99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the 106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
100popup is displayed. 107popup is displayed.
101 108
127bottom. C<Escape> leaves search mode and returns to the point where search 134bottom. C<Escape> leaves search mode and returns to the point where search
128was started, while C<Enter> or C<Return> stay at the current position and 135was started, while C<Enter> or C<Return> stay at the current position and
129additionally stores the first match in the current line into the primary 136additionally stores the first match in the current line into the primary
130selection. 137selection.
131 138
139=item readline (enabled by default)
140
141A support package that tries to make editing with readline easier. At the
142moment, it reacts to clicking with the left mouse button by trying to
143move the text cursor to this position. It does so by generating as many
144cursor-left or cursor-right keypresses as required (the this only works
145for programs that correctly support wide characters).
146
147To avoid too many false positives, this is only done when:
148
149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
162might interfere with selection creation in harmless ways.
163
132=item selection-autotransform 164=item selection-autotransform
133 165
134This selection allows you to do automatic transforms on a selection 166This selection allows you to do automatic transforms on a selection
135whenever a selection is made. 167whenever a selection is made.
136 168
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/ 193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
162 194
163The 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
164every error message as a selection pattern, and the second line transforms 196every error message as a selection pattern, and the second line transforms
165the 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.
166 209
167=item mark-urls 210=item mark-urls
168 211
169Uses 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
170make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
171resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
172the URL as first argument. 215the URL as first argument.
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
173 228
174=item automove-background 229=item automove-background
175 230
176This is basically a one-line extension that dynamically changes the background pixmap offset 231This is basically a one-line extension that dynamically changes the background pixmap offset
177to the window position, in effect creating the same effect as pseudo transparency with 232to the window position, in effect creating the same effect as pseudo transparency with
323place. 378place.
324 379
325=item on_start $term 380=item on_start $term
326 381
327Called at the very end of initialisation of a new terminal, just before 382Called at the very end of initialisation of a new terminal, just before
328returning to the mainloop. 383trying to map (display) the toplevel and returning to the mainloop.
384
385=item on_destroy $term
386
387Called whenever something tries to destroy terminal, when the terminal is
388still fully functional (not for long, though).
329 389
330=item on_reset $term 390=item on_reset $term
331 391
332Called after the screen is "reset" for any reason, such as resizing or 392Called after the screen is "reset" for any reason, such as resizing or
333control sequences. Here is where you can react on changes to size-related 393control sequences. Here is where you can react on changes to size-related
459Called wheneever the window loses keyboard focus, before rxvt-unicode does 519Called wheneever the window loses keyboard focus, before rxvt-unicode does
460focus out processing. 520focus out processing.
461 521
462=item on_configure_notify $term, $event 522=item on_configure_notify $term, $event
463 523
524=item on_property_notify $term, $event
525
464=item on_key_press $term, $event, $keysym, $octets 526=item on_key_press $term, $event, $keysym, $octets
465 527
466=item on_key_release $term, $event, $keysym 528=item on_key_release $term, $event, $keysym
467 529
468=item on_button_press $term, $event 530=item on_button_press $term, $event
477 539
478Called whenever the corresponding X event is received for the terminal If 540Called whenever the corresponding X event is received for the terminal If
479the hook returns true, then the even will be ignored by rxvt-unicode. 541the hook returns true, then the even will be ignored by rxvt-unicode.
480 542
481The event is a hash with most values as named by Xlib (see the XEvent 543The event is a hash with most values as named by Xlib (see the XEvent
482manpage), with the additional members C<row> and C<col>, which are the row 544manpage), with the additional members C<row> and C<col>, which are the
483and column under the mouse cursor. 545(real, not screen-based) row and column under the mouse cursor.
484 546
485C<on_key_press> additionally receives the string rxvt-unicode would 547C<on_key_press> additionally receives the string rxvt-unicode would
486output, if any, in locale-specific encoding. 548output, if any, in locale-specific encoding.
487 549
488subwindow. 550subwindow.
551
552=item on_client_message $term, $event
553
554=item on_wm_protocols $term, $event
555
556=item on_wm_delete_window $term, $event
557
558Called when various types of ClientMessage events are received (all with
559format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
489 560
490=back 561=back
491 562
492=cut 563=cut
493 564
499use Scalar::Util (); 570use Scalar::Util ();
500use List::Util (); 571use List::Util ();
501 572
502our $VERSION = 1; 573our $VERSION = 1;
503our $TERM; 574our $TERM;
575our @TERM_INIT;
576our @TERM_EXT;
504our @HOOKNAME; 577our @HOOKNAME;
505our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 578our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
506our %OPTION; 579our %OPTION;
507 580
508our $LIBDIR; 581our $LIBDIR;
509our $RESNAME; 582our $RESNAME;
510our $RESCLASS; 583our $RESCLASS;
511our $RXVTNAME; 584our $RXVTNAME;
512 585
586our $NOCHAR = chr 0xffff;
587
513=head2 Variables in the C<urxvt> Package 588=head2 Variables in the C<urxvt> Package
514 589
515=over 4 590=over 4
516 591
517=item $urxvt::LIBDIR 592=item $urxvt::LIBDIR
529 604
530=item $urxvt::TERM 605=item $urxvt::TERM
531 606
532The current terminal. This variable stores the current C<urxvt::term> 607The current terminal. This variable stores the current C<urxvt::term>
533object, whenever a callback/hook is executing. 608object, whenever a callback/hook is executing.
609
610=item @urxvt::TERM_INIT
611
612All coderefs in this array will be called as methods of the next newly
613created C<urxvt::term> object (during the C<on_init> phase). The array
614gets cleared before the codereferences that were in it are being executed,
615so coderefs can push themselves onto it again if they so desire.
616
617This complements to the perl-eval commandline option, but gets executed
618first.
619
620=item @urxvt::TERM_EXT
621
622Works similar to C<@TERM_INIT>, but contains perl package/class names, which
623get registered as normal extensions after calling the hooks in C<@TERM_INIT>
624but before other extensions. Gets cleared just like C<@TERM_INIT>.
534 625
535=back 626=back
536 627
537=head2 Functions in the C<urxvt> Package 628=head2 Functions in the C<urxvt> Package
538 629
647 unless $msg =~ /\n$/; 738 unless $msg =~ /\n$/;
648 urxvt::warn ($msg); 739 urxvt::warn ($msg);
649 }; 740 };
650} 741}
651 742
743no warnings 'utf8';
744
652my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 745my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
653 746
654sub verbose { 747sub verbose {
655 my ($level, $msg) = @_; 748 my ($level, $msg) = @_;
656 warn "$msg\n" if $level <= $verbosity; 749 warn "$msg\n" if $level <= $verbosity;
659my %extension_pkg; 752my %extension_pkg;
660 753
661# load a single script into its own package, once only 754# load a single script into its own package, once only
662sub extension_package($) { 755sub extension_package($) {
663 my ($path) = @_; 756 my ($path) = @_;
664
665 no strict 'refs';
666 757
667 $extension_pkg{$path} ||= do { 758 $extension_pkg{$path} ||= do {
668 $path =~ /([^\/\\]+)$/; 759 $path =~ /([^\/\\]+)$/;
669 my $pkg = $1; 760 my $pkg = $1;
670 $pkg =~ s/[^[:word:]]/_/g; 761 $pkg =~ s/[^[:word:]]/_/g;
673 verbose 3, "loading extension '$path' into package '$pkg'"; 764 verbose 3, "loading extension '$path' into package '$pkg'";
674 765
675 open my $fh, "<:raw", $path 766 open my $fh, "<:raw", $path
676 or die "$path: $!"; 767 or die "$path: $!";
677 768
678 @{"$pkg\::ISA"} = urxvt::term::extension::;
679
680 my $source = 769 my $source =
681 "package $pkg; use strict; use utf8;\n" 770 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
682 . "#line 1 \"$path\"\n{\n" 771 . "#line 1 \"$path\"\n{\n"
683 . (do { local $/; <$fh> }) 772 . (do { local $/; <$fh> })
684 . "\n};\n1"; 773 . "\n};\n1";
685 774
686 eval $source 775 eval $source
700 if ($htype == 0) { # INIT 789 if ($htype == 0) { # INIT
701 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 790 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
702 791
703 my %ext_arg; 792 my %ext_arg;
704 793
794 {
795 my @init = @TERM_INIT;
796 @TERM_INIT = ();
797 $_->($TERM) for @init;
798 my @pkg = @TERM_EXT;
799 @TERM_EXT = ();
800 $TERM->register_package ($_) for @pkg;
801 }
802
705 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 803 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
706 if ($_ eq "default") { 804 if ($_ eq "default") {
707 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 805 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
708 } elsif (/^-(.*)$/) { 806 } elsif (/^-(.*)$/) {
709 delete $ext_arg{$1}; 807 delete $ext_arg{$1};
710 } elsif (/^([^<]+)<(.*)>$/) { 808 } elsif (/^([^<]+)<(.*)>$/) {
711 push @{ $ext_arg{$1} }, $2; 809 push @{ $ext_arg{$1} }, $2;
712 } else { 810 } else {
735 if $verbosity >= 10; 833 if $verbosity >= 10;
736 834
737 keys %$cb; 835 keys %$cb;
738 836
739 while (my ($pkg, $cb) = each %$cb) { 837 while (my ($pkg, $cb) = each %$cb) {
740 $retval ||= eval { $cb->($TERM->{_pkg}{$pkg}, @_) }; 838 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
839 $retval ||= $retval_;
741 840
742 if ($@) { 841 if ($@) {
743 $TERM->ungrab; # better to lose the grab than the session 842 $TERM->ungrab; # better to lose the grab than the session
744 warn $@; 843 warn $@;
745 } 844 }
903 1002
904# find on_xxx subs in the package and register them 1003# find on_xxx subs in the package and register them
905# as hooks 1004# as hooks
906sub register_package { 1005sub register_package {
907 my ($self, $pkg, $argv) = @_; 1006 my ($self, $pkg, $argv) = @_;
1007
1008 no strict 'refs';
1009
1010 urxvt::verbose 6, "register package $pkg to $self";
1011
1012 @{"$pkg\::ISA"} = urxvt::term::extension::;
908 1013
909 my $proxy = bless { 1014 my $proxy = bless {
910 _pkg => $pkg, 1015 _pkg => $pkg,
911 argv => $argv, 1016 argv => $argv,
912 }, $pkg; 1017 }, $pkg;
1202 1307
1203Normally its not a good idea to use this function, as programs might be 1308Normally its not a good idea to use this function, as programs might be
1204confused by changes in cursor position or scrolling. Its useful inside a 1309confused by changes in cursor position or scrolling. Its useful inside a
1205C<on_add_lines> hook, though. 1310C<on_add_lines> hook, though.
1206 1311
1312=item $term->scr_change_screen ($screen)
1313
1314Switch to given screen - 0 primary, 1 secondary.
1315
1207=item $term->cmd_parse ($octets) 1316=item $term->cmd_parse ($octets)
1208 1317
1209Similar to C<scr_add_lines>, but the argument must be in the 1318Similar to C<scr_add_lines>, but the argument must be in the
1210locale-specific encoding of the terminal and can contain command sequences 1319locale-specific encoding of the terminal and can contain command sequences
1211(escape codes) that will be interpreted. 1320(escape codes) that will be interpreted.
1220 1329
1221Replaces the event mask of the pty watcher by the given event mask. Can 1330Replaces the event mask of the pty watcher by the given event mask. Can
1222be used to suppress input and output handling to the pty/tty. See the 1331be used to suppress input and output handling to the pty/tty. See the
1223description of C<< urxvt::timer->events >>. Make sure to always restore 1332description of C<< urxvt::timer->events >>. Make sure to always restore
1224the previous value. 1333the previous value.
1334
1335=item $fd = $term->pty_fd
1336
1337Returns the master file descriptor for the pty in use, or C<-1> if no pty
1338is used.
1225 1339
1226=item $windowid = $term->parent 1340=item $windowid = $term->parent
1227 1341
1228Return the window id of the toplevel window. 1342Return the window id of the toplevel window.
1229 1343
1294=item $modifiermask = $term->ModNumLockMask 1408=item $modifiermask = $term->ModNumLockMask
1295 1409
1296Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1410Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1297AltGr), the meta key (often Alt) and the num lock key, if applicable. 1411AltGr), the meta key (often Alt) and the num lock key, if applicable.
1298 1412
1413=item $screen = $term->current_screen
1414
1415Returns the currently displayed screen (0 primary, 1 secondary).
1416
1417=item $cursor_is_hidden = $term->hidden_cursor
1418
1419Returns wether the cursor is currently hidden or not.
1420
1299=item $view_start = $term->view_start ([$newvalue]) 1421=item $view_start = $term->view_start ([$newvalue])
1300 1422
1301Returns the row number of the topmost displayed line. Maximum value is 1423Returns the row number of the topmost displayed line. Maximum value is
1302C<0>, which displays the normal terminal contents. Lower values scroll 1424C<0>, which displays the normal terminal contents. Lower values scroll
1303this many lines into the scrollback buffer. 1425this many lines into the scrollback buffer.
1322line, starting at column C<$start_col> (default C<0>), which is useful 1444line, starting at column C<$start_col> (default C<0>), which is useful
1323to replace only parts of a line. The font index in the rendition will 1445to replace only parts of a line. The font index in the rendition will
1324automatically be updated. 1446automatically be updated.
1325 1447
1326C<$text> is in a special encoding: tabs and wide characters that use more 1448C<$text> is in a special encoding: tabs and wide characters that use more
1327than one cell when displayed are padded with urxvt::NOCHAR characters 1449than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1328(C<chr 65535>). Characters with combining characters and other characters 1450characters. Characters with combining characters and other characters that
1329that do not fit into the normal tetx encoding will be replaced with 1451do not fit into the normal tetx encoding will be replaced with characters
1330characters in the private use area. 1452in the private use area.
1331 1453
1332You have to obey this encoding when changing text. The advantage is 1454You have to obey this encoding when changing text. The advantage is
1333that C<substr> and similar functions work on screen cells and not on 1455that C<substr> and similar functions work on screen cells and not on
1334characters. 1456characters.
1335 1457
1509=item $term->ungrab 1631=item $term->ungrab
1510 1632
1511Calls XUngrab for the most recent grab. Is called automatically on 1633Calls XUngrab for the most recent grab. Is called automatically on
1512evaluation errors, as it is better to lose the grab in the error case as 1634evaluation errors, as it is better to lose the grab in the error case as
1513the session. 1635the session.
1636
1637=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1638
1639=item $atom_name = $term->XGetAtomName ($atom)
1640
1641=item @atoms = $term->XListProperties ($window)
1642
1643=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1644
1645=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1646
1647=item $term->XDeleteProperty ($window, $property)
1648
1649=item $window = $term->DefaultRootWindow
1650
1651=item $term->XReparentWindow ($window, $parent, [$x, $y])
1652
1653=item $term->XMapWindow ($window)
1654
1655=item $term->XUnmapWindow ($window)
1656
1657=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1658
1659=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1660
1661=item $term->XChangeInput ($window, $add_events[, $del_events])
1662
1663Various X or X-related functions. The C<$term> object only serves as
1664the source of the display, otherwise those functions map more-or-less
1665directory onto the X functions of the same name.
1514 1666
1515=back 1667=back
1516 1668
1517=cut 1669=cut
1518 1670
1638 delete $self->{term}{_destroy}{$self}; 1790 delete $self->{term}{_destroy}{$self};
1639 $self->{term}->ungrab; 1791 $self->{term}->ungrab;
1640} 1792}
1641 1793
1642=back 1794=back
1795
1796=cut
1797
1798package urxvt::watcher;
1799
1800@urxvt::timer::ISA = __PACKAGE__;
1801@urxvt::iow::ISA = __PACKAGE__;
1802@urxvt::pw::ISA = __PACKAGE__;
1803@urxvt::iw::ISA = __PACKAGE__;
1643 1804
1644=head2 The C<urxvt::timer> Class 1805=head2 The C<urxvt::timer> Class
1645 1806
1646This class implements timer watchers/events. Time is represented as a 1807This class implements timer watchers/events. Time is represented as a
1647fractional number of seconds since the epoch. Example: 1808fractional number of seconds since the epoch. Example:
1745 1906
1746Stop watching for events on the given filehandle. 1907Stop watching for events on the given filehandle.
1747 1908
1748=back 1909=back
1749 1910
1911=head2 The C<urxvt::iw> Class
1912
1913This class implements idle watchers, that get called automatically when
1914the process is idle. They should return as fast as possible, after doing
1915some useful work.
1916
1917=over 4
1918
1919=item $iw = new urxvt::iw
1920
1921Create a new idle watcher object in stopped state.
1922
1923=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1924
1925Set the callback to be called when the watcher triggers.
1926
1927=item $timer = $timer->start
1928
1929Start the watcher.
1930
1931=item $timer = $timer->stop
1932
1933Stop the watcher.
1934
1935=back
1936
1937=head2 The C<urxvt::pw> Class
1938
1939This class implements process watchers. They create an event whenever a
1940process exits, after which they stop automatically.
1941
1942 my $pid = fork;
1943 ...
1944 $term->{pw} = urxvt::pw
1945 ->new
1946 ->start ($pid)
1947 ->cb (sub {
1948 my ($pw, $exit_status) = @_;
1949 ...
1950 });
1951
1952=over 4
1953
1954=item $pw = new urxvt::pw
1955
1956Create a new process watcher in stopped state.
1957
1958=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1959
1960Set the callback to be called when the timer triggers.
1961
1962=item $pw = $timer->start ($pid)
1963
1964Tells the wqtcher to start watching for process C<$pid>.
1965
1966=item $pw = $pw->stop
1967
1968Stop the watcher.
1969
1970=back
1971
1750=head1 ENVIRONMENT 1972=head1 ENVIRONMENT
1751 1973
1752=head2 URXVT_PERL_VERBOSITY 1974=head2 URXVT_PERL_VERBOSITY
1753 1975
1754This variable controls the verbosity level of the perl extension. Higher 1976This variable controls the verbosity level of the perl extension. Higher

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