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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.86 by root, Thu Jan 12 05:22:47 2006 UTC vs.
Revision 1.127 by root, Wed Jan 25 00:42:21 2006 UTC

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 39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
44(More) intelligent selection. This extension tries to be more intelligent 48(More) intelligent selection. This extension tries to be more intelligent
45when the user extends selections (double-click). Right now, it tries to 49when the user extends selections (double-click and further clicks). Right
46select urls and complete shell-quoted arguments, which is very convenient, 50now, it tries to select words, urls and complete shell-quoted
47too, if your F<ls> supports C<--quoting-style=shell>. 51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
48 53
54A double-click usually selects the word under the cursor, further clicks
55will enlarge the selection.
56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
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
79You can look at the source of the selection extension to see more
80interesting uses, such as parsing a line from beginning to end.
81
49It also offers the following bindable keyboard command: 82This extension also offers following bindable keyboard commands:
50 83
51=over 4 84=over 4
52 85
53=item rot13 86=item rot13
54 87
65 98
66=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
67 100
68Binds 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
69text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
70evalution, 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 };
71 123
72=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
73 125
74Adds regex search functionality to the scrollback buffer, triggered 126Adds regex search functionality to the scrollback buffer, triggered
75by a hotkey (default: C<M-s>). When in search mode, normal terminal 127by a hotkey (default: C<M-s>). While in search mode, normal terminal
76input/output is suspended. 128input/output is suspended and a regex is displayed at the bottom of the
129screen.
77 130
78C</> starts an incremental regex search, C<n> searches further, C<p> or 131Inputting characters appends them to the regex and continues incremental
79C<N> jump to the previous match, C<G> jumps to the bottom and clears the 132search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
80history, C<enter> leaves search mode at the current position and C<escape> 133search upwards/downwards in the scrollback buffer, C<End> jumps to the
81returns to the original position. 134bottom. C<Escape> leaves search mode and returns to the point where search
135was started, while C<Enter> or C<Return> stay at the current position and
136additionally stores the first match in the current line into the primary
137selection.
82 138
83=item digital-clock 139=item readline (enabled by default)
84 140
85Displays a digital clock using the built-in overlay. 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
164=item selection-autotransform
165
166This selection allows you to do automatic transforms on a selection
167whenever a selection is made.
168
169It works by specifying perl snippets (most useful is a single C<s///>
170operator) that modify C<$_> as resources:
171
172 URxvt.selection-autotransform.0: transform
173 URxvt.selection-autotransform.1: transform
174 ...
175
176For example, the following will transform selections of the form
177C<filename:number>, often seen in compiler messages, into C<vi +$filename
178$word>:
179
180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
181
182And this example matches the same,but replaces it with vi-commands you can
183paste directly into your (vi :) editor:
184
185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
186
187Of course, this can be modified to suit your needs and your editor :)
188
189To expand the example above to typical perl error messages ("XXX at
190FILENAME line YYY."), you need a slightly more elaborate solution:
191
192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
194
195The first line tells the selection code to treat the unchanging part of
196every error message as a selection pattern, and the second line transforms
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.
86 209
87=item mark-urls 210=item mark-urls
88 211
89Uses 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
90make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
91resource C<urlLauncher> (default C<x-www-browser>) will be started. 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
215the URL as first argument.
216
217=item automove-background
218
219This is basically a one-line extension that dynamically changes the background pixmap offset
220to the window position, in effect creating the same effect as pseudo transparency with
221a custom pixmap. No scaling is supported in this mode. Exmaple:
222
223 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
92 224
93=item block-graphics-to-ascii 225=item block-graphics-to-ascii
94 226
95A not very useful example of filtering all text output to the terminal, 227A not very useful example of filtering all text output to the terminal,
96by replacing all line-drawing characters (U+2500 .. U+259F) by a 228by replacing all line-drawing characters (U+2500 .. U+259F) by a
97similar-looking ascii character. 229similar-looking ascii character.
98 230
231=item digital-clock
232
233Displays a digital clock using the built-in overlay.
234
99=item example-refresh-hooks 235=item example-refresh-hooks
100 236
101Displays a very simple digital clock in the upper right corner of the 237Displays a very simple digital clock in the upper right corner of the
102window. Illustrates overwriting the refresh callbacks to create your own 238window. Illustrates overwriting the refresh callbacks to create your own
103overlays or changes. 239overlays or changes.
240
241=item selection-pastebin
242
243This is a little rarely useful extension that Uploads the selection as
244textfile to a remote site (or does other things). (The implementation is
245not currently secure for use in a multiuser environment as it writes to
246F</tmp> directly.).
247
248It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
249i.e.
250
251 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
252
253Pressing this combination runs a command with C<%> replaced by the name of
254the textfile. This command can be set via a resource:
255
256 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
257
258And the default is likely not useful to anybody but the few people around
259here :)
260
261The name of the textfile is the hex encoded md5 sum of the selection, so
262the same content should lead to the same filename.
263
264After a successful upload the selection will be replaced by the text given
265in the C<selection-pastebin-url> resource (again, the % is the placeholder
266for the filename):
267
268 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
104 269
105=back 270=back
106 271
107=head1 API DOCUMENTATION 272=head1 API DOCUMENTATION
108 273
181called whenever the relevant event happens. 346called whenever the relevant event happens.
182 347
183The first argument passed to them is an extension oject as described in 348The first argument passed to them is an extension oject as described in
184the in the C<Extension Objects> section. 349the in the C<Extension Objects> section.
185 350
186B<All> of these hooks must return a boolean value. If it is true, then the 351B<All> of these hooks must return a boolean value. If any of the called
187event counts as being I<consumed>, and the invocation of other hooks is 352hooks returns true, then the event counts as being I<consumed>, and the
188skipped, and the relevant action might not be carried out by the C++ code. 353relevant action might not be carried out by the C++ code.
189 354
190I<< When in doubt, return a false value (preferably C<()>). >> 355I<< When in doubt, return a false value (preferably C<()>). >>
191 356
192=over 4 357=over 4
193 358
194=item on_init $term 359=item on_init $term
195 360
196Called after a new terminal object has been initialized, but before 361Called after a new terminal object has been initialized, but before
197windows are created or the command gets run. Most methods are unsafe to 362windows are created or the command gets run. Most methods are unsafe to
198call or deliver senseless data, as terminal size and other characteristics 363call or deliver senseless data, as terminal size and other characteristics
199have not yet been determined. You can safely query and change resources, 364have not yet been determined. You can safely query and change resources
200though. 365and options, though. For many purposes the C<on_start> hook is a better
366place.
367
368=item on_start $term
369
370Called at the very end of initialisation of a new terminal, just before
371trying to map (display) the toplevel and returning to the mainloop.
372
373=item on_destroy $term
374
375Called whenever something tries to destroy terminal, when the terminal is
376still fully functional (not for long, though).
201 377
202=item on_reset $term 378=item on_reset $term
203 379
204Called after the screen is "reset" for any reason, such as resizing or 380Called after the screen is "reset" for any reason, such as resizing or
205control sequences. Here is where you can react on changes to size-related 381control sequences. Here is where you can react on changes to size-related
206variables. 382variables.
207 383
208=item on_start $term 384=item on_child_start $term, $pid
209 385
210Called at the very end of initialisation of a new terminal, just before 386Called just after the child process has been C<fork>ed.
211returning to the mainloop. 387
388=item on_child_exit $term, $status
389
390Called just after the child process has exited. C<$status> is the status
391from C<waitpid>.
212 392
213=item on_sel_make $term, $eventtime 393=item on_sel_make $term, $eventtime
214 394
215Called whenever a selection has been made by the user, but before the 395Called whenever a selection has been made by the user, but before the
216selection text is copied, so changes to the beginning, end or type of the 396selection text is copied, so changes to the beginning, end or type of the
309 489
310Called whenever the user presses a key combination that has a 490Called whenever the user presses a key combination that has a
311C<perl:string> action bound to it (see description of the B<keysym> 491C<perl:string> action bound to it (see description of the B<keysym>
312resource in the @@RXVT_NAME@@(1) manpage). 492resource in the @@RXVT_NAME@@(1) manpage).
313 493
494=item on_x_event $term, $event
495
496Called on every X event received on the vt window (and possibly other
497windows). Should only be used as a last resort. Most event structure
498members are not passed.
499
314=item on_focus_in $term 500=item on_focus_in $term
315 501
316Called whenever the window gets the keyboard focus, before rxvt-unicode 502Called whenever the window gets the keyboard focus, before rxvt-unicode
317does focus in processing. 503does focus in processing.
318 504
319=item on_focus_out $term 505=item on_focus_out $term
320 506
321Called wheneever the window loses keyboard focus, before rxvt-unicode does 507Called wheneever the window loses keyboard focus, before rxvt-unicode does
322focus out processing. 508focus out processing.
323 509
510=item on_configure_notify $term, $event
511
512=item on_property_notify $term, $event
513
324=item on_key_press $term, $event, $keysym, $octets 514=item on_key_press $term, $event, $keysym, $octets
325 515
326=item on_key_release $term, $event, $keysym 516=item on_key_release $term, $event, $keysym
327 517
328=item on_button_press $term, $event 518=item on_button_press $term, $event
337 527
338Called whenever the corresponding X event is received for the terminal If 528Called whenever the corresponding X event is received for the terminal If
339the hook returns true, then the even will be ignored by rxvt-unicode. 529the hook returns true, then the even will be ignored by rxvt-unicode.
340 530
341The event is a hash with most values as named by Xlib (see the XEvent 531The event is a hash with most values as named by Xlib (see the XEvent
342manpage), with the additional members C<row> and C<col>, which are the row 532manpage), with the additional members C<row> and C<col>, which are the
343and column under the mouse cursor. 533(real, not screen-based) row and column under the mouse cursor.
344 534
345C<on_key_press> additionally receives the string rxvt-unicode would 535C<on_key_press> additionally receives the string rxvt-unicode would
346output, if any, in locale-specific encoding. 536output, if any, in locale-specific encoding.
347 537
348subwindow. 538subwindow.
539
540=item on_client_message $term, $event
541
542=item on_wm_protocols $term, $event
543
544=item on_wm_delete_window $term, $event
545
546Called when various types of ClientMessage events are received (all with
547format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
349 548
350=back 549=back
351 550
352=cut 551=cut
353 552
359use Scalar::Util (); 558use Scalar::Util ();
360use List::Util (); 559use List::Util ();
361 560
362our $VERSION = 1; 561our $VERSION = 1;
363our $TERM; 562our $TERM;
563our @TERM_INIT;
564our @TERM_EXT;
364our @HOOKNAME; 565our @HOOKNAME;
365our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 566our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
366our %OPTION; 567our %OPTION;
367 568
368our $LIBDIR; 569our $LIBDIR;
369our $RESNAME; 570our $RESNAME;
370our $RESCLASS; 571our $RESCLASS;
371our $RXVTNAME; 572our $RXVTNAME;
372 573
574our $NOCHAR = chr 0xffff;
575
373=head2 Variables in the C<urxvt> Package 576=head2 Variables in the C<urxvt> Package
374 577
375=over 4 578=over 4
376 579
377=item $urxvt::LIBDIR 580=item $urxvt::LIBDIR
389 592
390=item $urxvt::TERM 593=item $urxvt::TERM
391 594
392The current terminal. This variable stores the current C<urxvt::term> 595The current terminal. This variable stores the current C<urxvt::term>
393object, whenever a callback/hook is executing. 596object, whenever a callback/hook is executing.
597
598=item @urxvt::TERM_INIT
599
600All coderefs in this array will be called as methods of the next newly
601created C<urxvt::term> object (during the C<on_init> phase). The array
602gets cleared before the codereferences that were in it are being executed,
603so coderefs can push themselves onto it again if they so desire.
604
605This complements to the perl-eval commandline option, but gets executed
606first.
607
608=item @urxvt::TERM_EXT
609
610Works similar to C<@TERM_INIT>, but contains perl package/class names, which
611get registered as normal extensions after calling the hooks in C<@TERM_INIT>
612but before other extensions. Gets cleared just like C<@TERM_INIT>.
394 613
395=back 614=back
396 615
397=head2 Functions in the C<urxvt> Package 616=head2 Functions in the C<urxvt> Package
398 617
413Using this function has the advantage that its output ends up in the 632Using this function has the advantage that its output ends up in the
414correct place, e.g. on stderr of the connecting urxvtc client. 633correct place, e.g. on stderr of the connecting urxvtc client.
415 634
416Messages have a size limit of 1023 bytes currently. 635Messages have a size limit of 1023 bytes currently.
417 636
418=item $is_safe = urxvt::safe
419
420Returns true when it is safe to do potentially unsafe things, such as
421evaluating perl code specified by the user. This is true when urxvt was
422started setuid or setgid.
423
424=item $time = urxvt::NOW 637=item $time = urxvt::NOW
425 638
426Returns the "current time" (as per the event loop). 639Returns the "current time" (as per the event loop).
427 640
428=item urxvt::CurrentTime 641=item urxvt::CurrentTime
429 642
430=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 643=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
431Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 644Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
432Button4Mask, Button5Mask, AnyModifier 645Button4Mask, Button5Mask, AnyModifier
646
647=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
648ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
649PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
650Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
651KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
652ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
653FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
654
655=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
656EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
657GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
658UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
659ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
660CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
661SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
433 662
434Various constants for use in X calls and event processing. 663Various constants for use in X calls and event processing.
435 664
436=back 665=back
437 666
488=back 717=back
489 718
490=cut 719=cut
491 720
492BEGIN { 721BEGIN {
493 urxvt->bootstrap;
494
495 # overwrite perl's warn 722 # overwrite perl's warn
496 *CORE::GLOBAL::warn = sub { 723 *CORE::GLOBAL::warn = sub {
497 my $msg = join "", @_; 724 my $msg = join "", @_;
498 $msg .= "\n" 725 $msg .= "\n"
499 unless $msg =~ /\n$/; 726 unless $msg =~ /\n$/;
500 urxvt::warn ($msg); 727 urxvt::warn ($msg);
501 }; 728 };
502
503 # %ENV is the original startup environment
504 delete $ENV{IFS};
505 delete $ENV{CDPATH};
506 delete $ENV{BASH_ENV};
507 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
508} 729}
509 730
510my @hook_count; 731no warnings 'utf8';
732
511my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 733my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
512 734
513sub verbose { 735sub verbose {
514 my ($level, $msg) = @_; 736 my ($level, $msg) = @_;
515 warn "$msg\n" if $level <= $verbosity; 737 warn "$msg\n" if $level <= $verbosity;
516} 738}
517 739
518my $extension_pkg = "extension0000";
519my %extension_pkg; 740my %extension_pkg;
520 741
521# load a single script into its own package, once only 742# load a single script into its own package, once only
522sub extension_package($) { 743sub extension_package($) {
523 my ($path) = @_; 744 my ($path) = @_;
524 745
525 $extension_pkg{$path} ||= do { 746 $extension_pkg{$path} ||= do {
526 my $pkg = "urxvt::" . ($extension_pkg++); 747 $path =~ /([^\/\\]+)$/;
748 my $pkg = $1;
749 $pkg =~ s/[^[:word:]]/_/g;
750 $pkg = "urxvt::ext::$pkg";
527 751
528 verbose 3, "loading extension '$path' into package '$pkg'"; 752 verbose 3, "loading extension '$path' into package '$pkg'";
529 753
530 open my $fh, "<:raw", $path 754 open my $fh, "<:raw", $path
531 or die "$path: $!"; 755 or die "$path: $!";
532 756
533 my $source = untaint 757 my $source =
534 "package $pkg; use strict; use utf8;\n" 758 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
535 . "use base urxvt::term::extension::;\n"
536 . "#line 1 \"$path\"\n{\n" 759 . "#line 1 \"$path\"\n{\n"
537 . (do { local $/; <$fh> }) 760 . (do { local $/; <$fh> })
538 . "\n};\n1"; 761 . "\n};\n1";
539 762
540 eval $source 763 eval $source
554 if ($htype == 0) { # INIT 777 if ($htype == 0) { # INIT
555 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 778 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
556 779
557 my %ext_arg; 780 my %ext_arg;
558 781
782 {
783 my @init = @TERM_INIT;
784 @TERM_INIT = ();
785 $_->($TERM) for @init;
786 my @pkg = @TERM_EXT;
787 @TERM_EXT = ();
788 $TERM->register_package ($_) for @pkg;
789 }
790
559 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 791 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
560 if ($_ eq "default") { 792 if ($_ eq "default") {
561 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 793 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
562 } elsif (/^-(.*)$/) { 794 } elsif (/^-(.*)$/) {
563 delete $ext_arg{$1}; 795 delete $ext_arg{$1};
564 } elsif (/^([^<]+)<(.*)>$/) { 796 } elsif (/^([^<]+)<(.*)>$/) {
565 push @{ $ext_arg{$1} }, $2; 797 push @{ $ext_arg{$1} }, $2;
566 } else { 798 } else {
589 if $verbosity >= 10; 821 if $verbosity >= 10;
590 822
591 keys %$cb; 823 keys %$cb;
592 824
593 while (my ($pkg, $cb) = each %$cb) { 825 while (my ($pkg, $cb) = each %$cb) {
594 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 826 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
595 and last; 827 $retval ||= $retval_;
596 828
597 if ($@) { 829 if ($@) {
598 $TERM->ungrab; # better to lose the grab than the session 830 $TERM->ungrab; # better to lose the grab than the session
599 warn $@; 831 warn $@;
600 } 832 }
603 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 835 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
604 if $verbosity >= 11; 836 if $verbosity >= 11;
605 } 837 }
606 838
607 if ($htype == 1) { # DESTROY 839 if ($htype == 1) { # DESTROY
608 if (my $hook = delete $TERM->{_hook}) {
609 for my $htype (0..$#$hook) {
610 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
611 or set_should_invoke $htype, 0;
612 }
613 }
614
615 # clear package objects 840 # clear package objects
616 %$_ = () for values %{ $TERM->{_pkg} }; 841 %$_ = () for values %{ $TERM->{_pkg} };
617 842
618 # clear package 843 # clear package
619 %$TERM = (); 844 %$TERM = ();
620 } 845 }
621 846
622 $retval 847 $retval
623}
624
625sub exec_async(@) {
626 my $pid = fork;
627
628 return
629 if !defined $pid or $pid;
630
631 %ENV = %{ $TERM->env };
632
633 exec @_;
634 _exit 255;
635} 848}
636 849
637# urxvt::term::extension 850# urxvt::term::extension
638 851
639package urxvt::term::extension; 852package urxvt::term::extension;
645 while (my ($name, $cb) = each %hook) { 858 while (my ($name, $cb) = each %hook) {
646 my $htype = $HOOKTYPE{uc $name}; 859 my $htype = $HOOKTYPE{uc $name};
647 defined $htype 860 defined $htype
648 or Carp::croak "unsupported hook type '$name'"; 861 or Carp::croak "unsupported hook type '$name'";
649 862
863 $self->set_should_invoke ($htype, +1)
650 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 864 unless exists $self->{term}{_hook}[$htype]{$pkg};
651 $hook_count[$htype]++
652 or urxvt::set_should_invoke $htype, 1;
653 }
654 865
655 $self->{term}{_hook}[$htype]{$pkg} = $cb; 866 $self->{term}{_hook}[$htype]{$pkg} = $cb;
656 } 867 }
657} 868}
658 869
663 for my $name (@hook) { 874 for my $name (@hook) {
664 my $htype = $HOOKTYPE{uc $name}; 875 my $htype = $HOOKTYPE{uc $name};
665 defined $htype 876 defined $htype
666 or Carp::croak "unsupported hook type '$name'"; 877 or Carp::croak "unsupported hook type '$name'";
667 878
879 $self->set_should_invoke ($htype, -1)
668 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 880 if delete $self->{term}{_hook}[$htype]{$pkg};
669 --$hook_count[$htype]
670 or urxvt::set_should_invoke $htype, 0;
671 }
672 } 881 }
673} 882}
674 883
675our $AUTOLOAD; 884our $AUTOLOAD;
676 885
782# find on_xxx subs in the package and register them 991# find on_xxx subs in the package and register them
783# as hooks 992# as hooks
784sub register_package { 993sub register_package {
785 my ($self, $pkg, $argv) = @_; 994 my ($self, $pkg, $argv) = @_;
786 995
996 no strict 'refs';
997
998 urxvt::verbose 6, "register package $pkg to $self";
999
1000 @{"$pkg\::ISA"} = urxvt::term::extension::;
1001
787 my $proxy = bless { 1002 my $proxy = bless {
788 _pkg => $pkg, 1003 _pkg => $pkg,
789 argv => $argv, 1004 argv => $argv,
790 }, $pkg; 1005 }, $pkg;
791 Scalar::Util::weaken ($proxy->{term} = $self); 1006 Scalar::Util::weaken ($proxy->{term} = $self);
822 1037
823Destroy the terminal object (close the window, free resources 1038Destroy the terminal object (close the window, free resources
824etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1039etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
825watchers (timers, io watchers) are still active. 1040watchers (timers, io watchers) are still active.
826 1041
1042=item $term->exec_async ($cmd[, @args])
1043
1044Works like the combination of the C<fork>/C<exec> builtins, which executes
1045("starts") programs in the background. This function takes care of setting
1046the user environment before exec'ing the command (e.g. C<PATH>) and should
1047be preferred over explicit calls to C<exec> or C<system>.
1048
1049Returns the pid of the subprocess or C<undef> on error.
1050
1051=cut
1052
1053sub exec_async {
1054 my $self = shift;
1055
1056 my $pid = fork;
1057
1058 return $pid
1059 if !defined $pid or $pid;
1060
1061 %ENV = %{ $self->env };
1062
1063 exec @_;
1064 urxvt::_exit 255;
1065}
1066
827=item $isset = $term->option ($optval[, $set]) 1067=item $isset = $term->option ($optval[, $set])
828 1068
829Returns true if the option specified by C<$optval> is enabled, and 1069Returns true if the option specified by C<$optval> is enabled, and
830optionally change it. All option values are stored by name in the hash 1070optionally change it. All option values are stored by name in the hash
831C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1071C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
833Here is a a likely non-exhaustive list of option names, please see the 1073Here is a a likely non-exhaustive list of option names, please see the
834source file F</src/optinc.h> to see the actual list: 1074source file F</src/optinc.h> to see the actual list:
835 1075
836 borderLess console cursorBlink cursorUnderline hold iconic insecure 1076 borderLess console cursorBlink cursorUnderline hold iconic insecure
837 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1077 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
838 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1078 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
839 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1079 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
840 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1080 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
841 tripleclickwords utmpInhibit visualBell 1081 transparent tripleclickwords utmpInhibit visualBell
842 1082
843=item $value = $term->resource ($name[, $newval]) 1083=item $value = $term->resource ($name[, $newval])
844 1084
845Returns the current resource value associated with a given name and 1085Returns the current resource value associated with a given name and
846optionally sets a new value. Setting values is most useful in the C<init> 1086optionally sets a new value. Setting values is most useful in the C<init>
863 1103
864 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1104 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
865 borderLess color cursorBlink cursorUnderline cutchars delete_key 1105 borderLess color cursorBlink cursorUnderline cutchars delete_key
866 display_name embed ext_bwidth fade font geometry hold iconName 1106 display_name embed ext_bwidth fade font geometry hold iconName
867 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1107 imFont imLocale inputMethod insecure int_bwidth intensityStyles
868 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1108 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
869 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1109 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
870 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1110 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
871 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1111 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
872 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1112 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
873 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1113 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
874 shade term_name title transparent transparent_all tripleclickwords 1114 secondaryScreen secondaryScroll selectstyle shade term_name title
875 utmpInhibit visualBell 1115 transient_for transparent transparent_all tripleclickwords utmpInhibit
1116 visualBell
876 1117
877=cut 1118=cut
878 1119
879sub resource($$;$) { 1120sub resource($$;$) {
880 my ($self, $name) = (shift, shift); 1121 my ($self, $name) = (shift, shift);
1054 1295
1055Normally its not a good idea to use this function, as programs might be 1296Normally its not a good idea to use this function, as programs might be
1056confused by changes in cursor position or scrolling. Its useful inside a 1297confused by changes in cursor position or scrolling. Its useful inside a
1057C<on_add_lines> hook, though. 1298C<on_add_lines> hook, though.
1058 1299
1300=item $term->scr_change_screen ($screen)
1301
1302Switch to given screen - 0 primary, 1 secondary.
1303
1059=item $term->cmd_parse ($octets) 1304=item $term->cmd_parse ($octets)
1060 1305
1061Similar to C<scr_add_lines>, but the argument must be in the 1306Similar to C<scr_add_lines>, but the argument must be in the
1062locale-specific encoding of the terminal and can contain command sequences 1307locale-specific encoding of the terminal and can contain command sequences
1063(escape codes) that will be interpreted. 1308(escape codes) that will be interpreted.
1073Replaces the event mask of the pty watcher by the given event mask. Can 1318Replaces the event mask of the pty watcher by the given event mask. Can
1074be used to suppress input and output handling to the pty/tty. See the 1319be used to suppress input and output handling to the pty/tty. See the
1075description of C<< urxvt::timer->events >>. Make sure to always restore 1320description of C<< urxvt::timer->events >>. Make sure to always restore
1076the previous value. 1321the previous value.
1077 1322
1323=item $fd = $term->pty_fd
1324
1325Returns the master file descriptor for the pty in use, or C<-1> if no pty
1326is used.
1327
1078=item $windowid = $term->parent 1328=item $windowid = $term->parent
1079 1329
1080Return the window id of the toplevel window. 1330Return the window id of the toplevel window.
1081 1331
1082=item $windowid = $term->vt 1332=item $windowid = $term->vt
1083 1333
1084Return the window id of the terminal window. 1334Return the window id of the terminal window.
1085 1335
1336=item $term->vt_emask_add ($x_event_mask)
1337
1338Adds the specified events to the vt event mask. Useful e.g. when you want
1339to receive pointer events all the times:
1340
1341 $term->vt_emask_add (urxvt::PointerMotionMask);
1342
1086=item $window_width = $term->width 1343=item $window_width = $term->width
1087 1344
1088=item $window_height = $term->height 1345=item $window_height = $term->height
1089 1346
1090=item $font_width = $term->fwidth 1347=item $font_width = $term->fwidth
1103 1360
1104=item $max_scrollback = $term->saveLines 1361=item $max_scrollback = $term->saveLines
1105 1362
1106=item $nrow_plus_saveLines = $term->total_rows 1363=item $nrow_plus_saveLines = $term->total_rows
1107 1364
1108=item $lines_in_scrollback = $term->nsaved 1365=item $topmost_scrollback_row = $term->top_row
1109 1366
1110Return various integers describing terminal characteristics. 1367Return various integers describing terminal characteristics.
1111 1368
1112=item $x_display = $term->display_id 1369=item $x_display = $term->display_id
1113 1370
1139=item $modifiermask = $term->ModNumLockMask 1396=item $modifiermask = $term->ModNumLockMask
1140 1397
1141Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1398Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1142AltGr), the meta key (often Alt) and the num lock key, if applicable. 1399AltGr), the meta key (often Alt) and the num lock key, if applicable.
1143 1400
1401=item $screen = $term->current_screen
1402
1403Returns the currently displayed screen (0 primary, 1 secondary).
1404
1405=item $cursor_is_hidden = $term->hidden_cursor
1406
1407Returns wether the cursor is currently hidden or not.
1408
1144=item $view_start = $term->view_start ([$newvalue]) 1409=item $view_start = $term->view_start ([$newvalue])
1145 1410
1146Returns the negative row number of the topmost line. Minimum value is 1411Returns the row number of the topmost displayed line. Maximum value is
1147C<0>, which displays the normal terminal contents. Larger values scroll 1412C<0>, which displays the normal terminal contents. Lower values scroll
1148this many lines into the scrollback buffer. 1413this many lines into the scrollback buffer.
1149 1414
1150=item $term->want_refresh 1415=item $term->want_refresh
1151 1416
1152Requests a screen refresh. At the next opportunity, rxvt-unicode will 1417Requests a screen refresh. At the next opportunity, rxvt-unicode will
1167line, starting at column C<$start_col> (default C<0>), which is useful 1432line, starting at column C<$start_col> (default C<0>), which is useful
1168to replace only parts of a line. The font index in the rendition will 1433to replace only parts of a line. The font index in the rendition will
1169automatically be updated. 1434automatically be updated.
1170 1435
1171C<$text> is in a special encoding: tabs and wide characters that use more 1436C<$text> is in a special encoding: tabs and wide characters that use more
1172than one cell when displayed are padded with urxvt::NOCHAR characters 1437than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1173(C<chr 65535>). Characters with combining characters and other characters 1438characters. Characters with combining characters and other characters that
1174that do not fit into the normal tetx encoding will be replaced with 1439do not fit into the normal tetx encoding will be replaced with characters
1175characters in the private use area. 1440in the private use area.
1176 1441
1177You have to obey this encoding when changing text. The advantage is 1442You have to obey this encoding when changing text. The advantage is
1178that C<substr> and similar functions work on screen cells and not on 1443that C<substr> and similar functions work on screen cells and not on
1179characters. 1444characters.
1180 1445
1355 1620
1356Calls XUngrab for the most recent grab. Is called automatically on 1621Calls XUngrab for the most recent grab. Is called automatically on
1357evaluation errors, as it is better to lose the grab in the error case as 1622evaluation errors, as it is better to lose the grab in the error case as
1358the session. 1623the session.
1359 1624
1625=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1626
1627=item $atom_name = $term->XGetAtomName ($atom)
1628
1629=item @atoms = $term->XListProperties ($window)
1630
1631=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1632
1633=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1634
1635=item $term->XDeleteProperty ($window, $property)
1636
1637=item $window = $term->DefaultRootWindow
1638
1639=item $term->XReparentWindow ($window, $parent, [$x, $y])
1640
1641=item $term->XMapWindow ($window)
1642
1643=item $term->XUnmapWindow ($window)
1644
1645=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1646
1647=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1648
1649=item $term->XChangeInput ($window, $add_events[, $del_events])
1650
1651Various X or X-related functions. The C<$term> object only serves as
1652the source of the display, otherwise those functions map more-or-less
1653directory onto the X functions of the same name.
1654
1360=back 1655=back
1361 1656
1362=cut 1657=cut
1363 1658
1364package urxvt::popup; 1659package urxvt::popup;
1465 my $env = $self->{term}->env; 1760 my $env = $self->{term}->env;
1466 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1761 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1467 delete $env->{LC_ALL}; 1762 delete $env->{LC_ALL};
1468 $env->{LC_CTYPE} = $self->{term}->locale; 1763 $env->{LC_CTYPE} = $self->{term}->locale;
1469 1764
1470 urxvt::term->new ($env, $self->{term}->resource ("name"), 1765 urxvt::term->new ($env, "popup",
1471 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1766 "--perl-lib" => "", "--perl-ext-common" => "",
1767 "-pty-fd" => -1, "-sl" => 0,
1768 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1472 "--transient-for" => $self->{term}->parent, 1769 "--transient-for" => $self->{term}->parent,
1473 "-display" => $self->{term}->display_id, 1770 "-display" => $self->{term}->display_id,
1474 "-pe" => "urxvt-popup") 1771 "-pe" => "urxvt-popup")
1475 or die "unable to create popup window\n"; 1772 or die "unable to create popup window\n";
1476} 1773}
1481 delete $self->{term}{_destroy}{$self}; 1778 delete $self->{term}{_destroy}{$self};
1482 $self->{term}->ungrab; 1779 $self->{term}->ungrab;
1483} 1780}
1484 1781
1485=back 1782=back
1783
1784=cut
1785
1786package urxvt::watcher;
1787
1788@urxvt::timer::ISA = __PACKAGE__;
1789@urxvt::iow::ISA = __PACKAGE__;
1790@urxvt::pw::ISA = __PACKAGE__;
1791@urxvt::iw::ISA = __PACKAGE__;
1486 1792
1487=head2 The C<urxvt::timer> Class 1793=head2 The C<urxvt::timer> Class
1488 1794
1489This class implements timer watchers/events. Time is represented as a 1795This class implements timer watchers/events. Time is represented as a
1490fractional number of seconds since the epoch. Example: 1796fractional number of seconds since the epoch. Example:
1528Start the timer. 1834Start the timer.
1529 1835
1530=item $timer = $timer->start ($tstamp) 1836=item $timer = $timer->start ($tstamp)
1531 1837
1532Set the event trigger time to C<$tstamp> and start the timer. 1838Set the event trigger time to C<$tstamp> and start the timer.
1839
1840=item $timer = $timer->after ($delay)
1841
1842Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1533 1843
1534=item $timer = $timer->stop 1844=item $timer = $timer->stop
1535 1845
1536Stop the timer. 1846Stop the timer.
1537 1847
1584 1894
1585Stop watching for events on the given filehandle. 1895Stop watching for events on the given filehandle.
1586 1896
1587=back 1897=back
1588 1898
1899=head2 The C<urxvt::iw> Class
1900
1901This class implements idle watchers, that get called automatically when
1902the process is idle. They should return as fast as possible, after doing
1903some useful work.
1904
1905=over 4
1906
1907=item $iw = new urxvt::iw
1908
1909Create a new idle watcher object in stopped state.
1910
1911=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1912
1913Set the callback to be called when the watcher triggers.
1914
1915=item $timer = $timer->start
1916
1917Start the watcher.
1918
1919=item $timer = $timer->stop
1920
1921Stop the watcher.
1922
1923=back
1924
1925=head2 The C<urxvt::pw> Class
1926
1927This class implements process watchers. They create an event whenever a
1928process exits, after which they stop automatically.
1929
1930 my $pid = fork;
1931 ...
1932 $term->{pw} = urxvt::pw
1933 ->new
1934 ->start ($pid)
1935 ->cb (sub {
1936 my ($pw, $exit_status) = @_;
1937 ...
1938 });
1939
1940=over 4
1941
1942=item $pw = new urxvt::pw
1943
1944Create a new process watcher in stopped state.
1945
1946=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1947
1948Set the callback to be called when the timer triggers.
1949
1950=item $pw = $timer->start ($pid)
1951
1952Tells the wqtcher to start watching for process C<$pid>.
1953
1954=item $pw = $pw->stop
1955
1956Stop the watcher.
1957
1958=back
1959
1589=head1 ENVIRONMENT 1960=head1 ENVIRONMENT
1590 1961
1591=head2 URXVT_PERL_VERBOSITY 1962=head2 URXVT_PERL_VERBOSITY
1592 1963
1593This variable controls the verbosity level of the perl extension. Higher 1964This variable controls the verbosity level of the perl extension. Higher

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