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Revision 1.196 by sf-exg, Wed Jun 29 22:46:48 2011 UTC vs.
Revision 1.219 by sf-exg, Sun Jun 10 18:23:18 2012 UTC

20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Every time a terminal object gets created, extension scripts specified via 22Every time a terminal object gets created, extension scripts specified via
23the C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31You can disable the embedded perl interpreter by setting both "perl-ext" 31You can disable the embedded perl interpreter by setting both "perl-ext"
32and "perl-ext-common" resources to the empty string. 32and "perl-ext-common" resources to the empty string.
33 33
34=head1 PREPACKAGED EXTENSIONS 34=head1 PREPACKAGED EXTENSIONS
35 35
36This section describes the extensions delivered with this release. You can 36A number of extensions are delivered with this release. You can find them
37find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 37in F<@@RXVT_LIBDIR@@/urxvt/perl/>, and the documentation can be viewed
38using F<< man urxvt-<EXTENSIONNAME> >>.
38 39
39You can activate them like this: 40You can activate them like this:
40 41
41 @@RXVT_NAME@@ -pe <extensionname> 42 @@RXVT_NAME@@ -pe <extensionname>
42 43
43Or by adding them to the resource for extensions loaded by default: 44Or by adding them to the resource for extensions loaded by default:
44 45
45 URxvt.perl-ext-common: default,selection-autotransform 46 URxvt.perl-ext-common: default,selection-autotransform
46 47
47=over 4 48Extensions that add command line parameters or resources on their own are
48 49loaded automatically when used.
49=item selection (enabled by default)
50
51(More) intelligent selection. This extension tries to be more intelligent
52when the user extends selections (double-click and further clicks). Right
53now, it tries to select words, urls and complete shell-quoted
54arguments, which is very convenient, too, if your F<ls> supports
55C<--quoting-style=shell>.
56
57A double-click usually selects the word under the cursor, further clicks
58will enlarge the selection.
59
60The selection works by trying to match a number of regexes and displaying
61them in increasing order of length. You can add your own regexes by
62specifying resources of the form:
63
64 URxvt.selection.pattern-0: perl-regex
65 URxvt.selection.pattern-1: perl-regex
66 ...
67
68The index number (0, 1...) must not have any holes, and each regex must
69contain at least one pair of capturing parentheses, which will be used for
70the match. For example, the following adds a regex that matches everything
71between two vertical bars:
72
73 URxvt.selection.pattern-0: \\|([^|]+)\\|
74
75Another example: Programs I use often output "absolute path: " at the
76beginning of a line when they process multiple files. The following
77pattern matches the filename (note, there is a single space at the very
78end):
79
80 URxvt.selection.pattern-0: ^(/[^:]+):\
81
82You can look at the source of the selection extension to see more
83interesting uses, such as parsing a line from beginning to end.
84
85This extension also offers following bindable keyboard commands:
86
87=over 4
88
89=item rot13
90
91Rot-13 the selection when activated. Used via keyboard trigger:
92
93 URxvt.keysym.C-M-r: perl:selection:rot13
94
95=back
96
97=item option-popup (enabled by default)
98
99Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
100runtime.
101
102Other extensions can extend this popup menu by pushing a code reference
103onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
104popup is being displayed.
105
106Its sole argument is the popup menu, which can be modified. It should
107either return nothing or a string, the initial boolean value and a code
108reference. The string will be used as button text and the code reference
109will be called when the toggle changes, with the new boolean value as
110first argument.
111
112The following will add an entry C<myoption> that changes
113C<< $self->{myoption} >>:
114
115 push @{ $self->{term}{option_popup_hook} }, sub {
116 ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
117 };
118
119=item selection-popup (enabled by default)
120
121Binds a popup menu to Ctrl-Button3 that lets you convert the selection
122text into various other formats/action (such as uri unescaping, perl
123evaluation, web-browser starting etc.), depending on content.
124
125Other extensions can extend this popup menu by pushing a code reference
126onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
127popup is being displayed.
128
129Its sole argument is the popup menu, which can be modified. The selection
130is in C<$_>, which can be used to decide whether to add something or not.
131It should either return nothing or a string and a code reference. The
132string will be used as button text and the code reference will be called
133when the button gets activated and should transform C<$_>.
134
135The following will add an entry C<a to b> that transforms all C<a>s in
136the selection to C<b>s, but only if the selection currently contains any
137C<a>s:
138
139 push @{ $self->{term}{selection_popup_hook} }, sub {
140 /a/ ? ("a to b" => sub { s/a/b/g }
141 : ()
142 };
143
144=item searchable-scrollback<hotkey> (enabled by default)
145
146Adds regex search functionality to the scrollback buffer, triggered
147by a hotkey (default: C<M-s>). While in search mode, normal terminal
148input/output is suspended and a regex is displayed at the bottom of the
149screen.
150
151Inputting characters appends them to the regex and continues incremental
152search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
153search upwards/downwards in the scrollback buffer, C<End> jumps to the
154bottom. C<Escape> leaves search mode and returns to the point where search
155was started, while C<Enter> or C<Return> stay at the current position and
156additionally stores the first match in the current line into the primary
157selection if the C<Shift> modifier is active.
158
159The regex defaults to "(?i)", resulting in a case-insensitive search. To
160get a case-sensitive search you can delete this prefix using C<BackSpace>
161or simply use an uppercase character which removes the "(?i)" prefix.
162
163See L<perlre> for more info about perl regular expression syntax.
164
165=item readline (enabled by default)
166
167A support package that tries to make editing with readline easier. At
168the moment, it reacts to clicking shift-left mouse button by trying to
169move the text cursor to this position. It does so by generating as many
170cursor-left or cursor-right keypresses as required (this only works
171for programs that correctly support wide characters).
172
173To avoid too many false positives, this is only done when:
174
175=over 4
176
177=item - the tty is in ICANON state.
178
179=item - the text cursor is visible.
180
181=item - the primary screen is currently being displayed.
182
183=item - the mouse is on the same (multi-row-) line as the text cursor.
184
185=back
186
187The normal selection mechanism isn't disabled, so quick successive clicks
188might interfere with selection creation in harmless ways.
189
190=item selection-autotransform
191
192This selection allows you to do automatic transforms on a selection
193whenever a selection is made.
194
195It works by specifying perl snippets (most useful is a single C<s///>
196operator) that modify C<$_> as resources:
197
198 URxvt.selection-autotransform.0: transform
199 URxvt.selection-autotransform.1: transform
200 ...
201
202For example, the following will transform selections of the form
203C<filename:number>, often seen in compiler messages, into C<vi +$filename
204$word>:
205
206 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
207
208And this example matches the same,but replaces it with vi-commands you can
209paste directly into your (vi :) editor:
210
211 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
212
213Of course, this can be modified to suit your needs and your editor :)
214
215To expand the example above to typical perl error messages ("XXX at
216FILENAME line YYY."), you need a slightly more elaborate solution:
217
218 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
219 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
220
221The first line tells the selection code to treat the unchanging part of
222every error message as a selection pattern, and the second line transforms
223the message into vi commands to load the file.
224
225=item tabbed
226
227This transforms the terminal into a tabbar with additional terminals, that
228is, it implements what is commonly referred to as "tabbed terminal". The topmost line
229displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
230button per tab.
231
232Clicking a button will activate that tab. Pressing B<Shift-Left> and
233B<Shift-Right> will switch to the tab left or right of the current one,
234while B<Shift-Down> creates a new tab.
235
236The tabbar itself can be configured similarly to a normal terminal, but
237with a resource class of C<URxvt.tabbed>. In addition, it supports the
238following four resources (shown with defaults):
239
240 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
241 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
242 URxvt.tabbed.tab-fg: <colour-index, default 0>
243 URxvt.tabbed.tab-bg: <colour-index, default 1>
244
245See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
246indices.
247
248=item matcher
249
250Uses per-line display filtering (C<on_line_update>) to underline text
251matching a certain pattern and make it clickable. When clicked with the
252mouse button specified in the C<matcher.button> resource (default 2, or
253middle), the program specified in the C<matcher.launcher> resource
254(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
255with the matched text as first argument. The default configuration is
256suitable for matching URLs and launching a web browser, like the
257former "mark-urls" extension.
258
259The default pattern to match URLs can be overridden with the
260C<matcher.pattern.0> resource, and additional patterns can be specified
261with numbered patterns, in a manner similar to the "selection" extension.
262The launcher can also be overridden on a per-pattern basis.
263
264It is possible to activate the most recently seen match from the keyboard.
265Simply bind a keysym to "perl:matcher" as seen in the example below.
266
267Example configuration:
268
269 URxvt.perl-ext: default,matcher
270 URxvt.urlLauncher: sensible-browser
271 URxvt.keysym.C-Delete: perl:matcher
272 URxvt.matcher.button: 1
273 URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
274 URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
275 URxvt.matcher.launcher.2: gvim +$2 $1
276
277=item xim-onthespot
278
279This (experimental) perl extension implements OnTheSpot editing. It does
280not work perfectly, and some input methods don't seem to work well with
281OnTheSpot editing in general, but it seems to work at least for SCIM and
282kinput2.
283
284You enable it by specifying this extension and a preedit style of
285C<OnTheSpot>, i.e.:
286
287 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
288
289=item kuake<hotkey>
290
291A very primitive quake-console-like extension. It was inspired by a
292description of how the programs C<kuake> and C<yakuake> work: Whenever the
293user presses a global accelerator key (by default C<F10>), the terminal
294will show or hide itself. Another press of the accelerator key will hide
295or show it again.
296
297Initially, the window will not be shown when using this extension.
298
299This is useful if you need a single terminal that is not using any desktop
300space most of the time but is quickly available at the press of a key.
301
302The accelerator key is grabbed regardless of any modifiers, so this
303extension will actually grab a physical key just for this function.
304
305If you want a quake-like animation, tell your window manager to do so
306(fvwm can do it).
307
308=item overlay-osc
309
310This extension implements some OSC commands to display timed popups on the
311screen - useful for status displays from within scripts. You have to read
312the sources for more info.
313
314=item block-graphics-to-ascii
315
316A not very useful example of filtering all text output to the terminal
317by replacing all line-drawing characters (U+2500 .. U+259F) by a
318similar-looking ascii character.
319
320=item digital-clock
321
322Displays a digital clock using the built-in overlay.
323
324=item remote-clipboard
325
326Somewhat of a misnomer, this extension adds two menu entries to the
327selection popup that allows one to run external commands to store the
328selection somewhere and fetch it again.
329
330We use it to implement a "distributed selection mechanism", which just
331means that one command uploads the file to a remote server, and another
332reads it.
333
334The commands can be set using the C<URxvt.remote-selection.store> and
335C<URxvt.remote-selection.fetch> resources. The first should read the
336selection to store from STDIN (always in UTF-8), the second should provide
337the selection data on STDOUT (also in UTF-8).
338
339The defaults (which are likely useless to you) use rsh and cat:
340
341 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
342 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
343
344=item selection-pastebin
345
346This is a little rarely useful extension that uploads the selection as
347textfile to a remote site (or does other things). (The implementation is
348not currently secure for use in a multiuser environment as it writes to
349F</tmp> directly.).
350
351It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
352i.e.
353
354 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
355
356Pressing this combination runs a command with C<%> replaced by the name of
357the textfile. This command can be set via a resource:
358
359 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
360
361And the default is likely not useful to anybody but the few people around
362here :)
363
364The name of the textfile is the hex encoded md5 sum of the selection, so
365the same content should lead to the same filename.
366
367After a successful upload the selection will be replaced by the text given
368in the C<selection-pastebin-url> resource (again, the % is the placeholder
369for the filename):
370
371 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
372
373I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
374the double C</> characters as comment start. Use C<\057\057> instead,
375which works regardless of whether xrdb is used to parse the resource file
376or not.
377
378=item macosx-clipboard and macosx-clipboard-native
379
380These two modules implement an extended clipboard for Mac OS X. They are
381used like this:
382
383 URxvt.perl-ext-common: default,macosx-clipboard
384 URxvt.keysym.M-c: perl:macosx-clipboard:copy
385 URxvt.keysym.M-v: perl:macosx-clipboard:paste
386
387The difference between them is that the native variant requires a
388perl from apple's devkit or so, and C<macosx-clipboard> requires the
389C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
390simpler etc. etc.
391
392=item example-refresh-hooks
393
394Displays a very simple digital clock in the upper right corner of the
395window. Illustrates overwriting the refresh callbacks to create your own
396overlays or changes.
397
398=item confirm-paste
399
400Displays a confirmation dialog when a paste containing at least a full
401line is detected.
402
403=back
404 50
405=head1 API DOCUMENTATION 51=head1 API DOCUMENTATION
406 52
407=head2 General API Considerations 53=head2 General API Considerations
408 54
435 81
436=item $octets 82=item $octets
437 83
438Either binary data or - more common - a text string encoded in a 84Either binary data or - more common - a text string encoded in a
439locale-specific way. 85locale-specific way.
86
87=item $keysym
88
89an integer that is a valid X11 keysym code. You can convert a string
90into a keysym and viceversa by using C<XStringToKeysym> and
91C<XKeysymToString>.
440 92
441=back 93=back
442 94
443=head2 Extension Objects 95=head2 Extension Objects
444 96
656resource in the @@RXVT_NAME@@(1) manpage). 308resource in the @@RXVT_NAME@@(1) manpage).
657 309
658The event is simply the action string. This interface is assumed to change 310The event is simply the action string. This interface is assumed to change
659slightly in the future. 311slightly in the future.
660 312
313=item on_register_command $term, $keysym, $modifiermask, $string
314
315Called after parsing a keysym resource but before registering the
316associated binding. If this hook returns TRUE the binding is not
317registered. It can be used to modify a binding by calling
318C<register_command>.
319
661=item on_resize_all_windows $term, $new_width, $new_height 320=item on_resize_all_windows $term, $new_width, $new_height
662 321
663Called just after the new window size has been calculated, but before 322Called just after the new window size has been calculated, but before
664windows are actually being resized or hints are being set. If this hook 323windows are actually being resized or hints are being set. If this hook
665returns TRUE, setting of the window hints is being skipped. 324returns TRUE, setting of the window hints is being skipped.
732=cut 391=cut
733 392
734package urxvt; 393package urxvt;
735 394
736use utf8; 395use utf8;
737use strict; 396use strict 'vars';
738use Carp (); 397use Carp ();
739use Scalar::Util (); 398use Scalar::Util ();
740use List::Util (); 399use List::Util ();
741 400
742our $VERSION = 1; 401our $VERSION = 1;
743our $TERM; 402our $TERM;
744our @TERM_INIT; 403our @TERM_INIT; # should go, prevents async I/O etc.
745our @TERM_EXT; 404our @TERM_EXT; # should go, prevents async I/O etc.
746our @HOOKNAME; 405our @HOOKNAME;
747our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 406our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
748our %OPTION; 407our %OPTION;
749 408
750our $LIBDIR; 409our $LIBDIR;
920 }; 579 };
921} 580}
922 581
923no warnings 'utf8'; 582no warnings 'utf8';
924 583
584sub parse_resource {
585 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
586
587 $name =~ y/-/./ if $isarg;
588
589 $term->scan_meta;
590
591 my $r = $term->{meta}{resource};
592 keys %$r; # reste iterator
593 while (my ($pattern, $v) = each %$r) {
594 if (
595 $pattern =~ /\.$/
596 ? $pattern eq substr $name, 0, length $pattern
597 : $pattern eq $name
598 ) {
599 $name = "$urxvt::RESCLASS.$name";
600
601 push @{ $term->{perl_ext_3} }, $v->[0];
602
603 if ($v->[1] eq "boolean") {
604 $term->put_option_db ($name, $flag ? "true" : "false");
605 return 1;
606 } else {
607 $term->put_option_db ($name, $value);
608 return 1 + 2;
609 }
610 }
611 }
612
613 0
614}
615
616sub usage {
617 my ($term, $usage_type) = @_;
618
619 $term->scan_meta;
620
621 my $r = $term->{meta}{resource};
622
623 for my $pattern (sort keys %$r) {
624 my ($ext, $type, $desc) = @{ $r->{$pattern} };
625
626 $desc .= " (-pe $ext)";
627
628 if ($usage_type == 1) {
629 $pattern =~ y/./-/;
630 $pattern =~ s/-$/-.../g;
631
632 if ($type eq "boolean") {
633 urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
634 } else {
635 urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
636 }
637 } else {
638 $pattern =~ s/\.$/.*/g;
639 urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
640 }
641 }
642}
643
925my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 644my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
926 645
927sub verbose { 646sub verbose {
928 my ($level, $msg) = @_; 647 my ($level, $msg) = @_;
929 warn "$msg\n" if $level <= $verbosity; 648 warn "$msg\n" if $level <= $verbosity;
941 $pkg =~ s/[^[:word:]]/_/g; 660 $pkg =~ s/[^[:word:]]/_/g;
942 $pkg = "urxvt::ext::$pkg"; 661 $pkg = "urxvt::ext::$pkg";
943 662
944 verbose 3, "loading extension '$path' into package '$pkg'"; 663 verbose 3, "loading extension '$path' into package '$pkg'";
945 664
665 (${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
666
946 open my $fh, "<:raw", $path 667 open my $fh, "<:raw", $path
947 or die "$path: $!"; 668 or die "$path: $!";
948 669
949 my $source = 670 my $source =
950 "package $pkg; use strict; use utf8; no warnings 'utf8';\n" 671 "package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
951 . "#line 1 \"$path\"\n{\n" 672 . "#line 1 \"$path\"\n{\n"
952 . (do { local $/; <$fh> }) 673 . (do { local $/; <$fh> })
953 . "\n};\n1"; 674 . "\n};\n1";
954 675
955 eval $source 676 eval $source
965sub invoke { 686sub invoke {
966 local $TERM = shift; 687 local $TERM = shift;
967 my $htype = shift; 688 my $htype = shift;
968 689
969 if ($htype == 0) { # INIT 690 if ($htype == 0) { # INIT
970 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 691 my @dirs = $TERM->perl_libdirs;
971 692
972 my %ext_arg; 693 my %ext_arg;
973 694
974 { 695 {
975 my @init = @TERM_INIT; 696 my @init = @TERM_INIT;
978 my @pkg = @TERM_EXT; 699 my @pkg = @TERM_EXT;
979 @TERM_EXT = (); 700 @TERM_EXT = ();
980 $TERM->register_package ($_) for @pkg; 701 $TERM->register_package ($_) for @pkg;
981 } 702 }
982 703
704 for (
705 @{ delete $TERM->{perl_ext_3} },
983 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 706 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
707 ) {
984 if ($_ eq "default") { 708 if ($_ eq "default") {
985 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 709 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
986 } elsif (/^-(.*)$/) { 710 } elsif (/^-(.*)$/) {
987 delete $ext_arg{$1}; 711 delete $ext_arg{$1};
988 } elsif (/^([^<]+)<(.*)>$/) { 712 } elsif (/^([^<]+)<(.*)>$/) {
1064 } 788 }
1065 } 789 }
1066 ($mask, @color{qw(fg bg)}, \@failed) 790 ($mask, @color{qw(fg bg)}, \@failed)
1067} 791}
1068 792
1069# urxvt::term::extension
1070
1071package urxvt::term::extension; 793package urxvt::term::extension;
1072 794
1073sub enable { 795sub enable {
1074 my ($self, %hook) = @_; 796 my ($self, %hook) = @_;
1075 my $pkg = $self->{_pkg}; 797 my $pkg = $self->{_pkg};
1129 851
1130sub urxvt::destroy_hook(&) { 852sub urxvt::destroy_hook(&) {
1131 bless \shift, urxvt::destroy_hook:: 853 bless \shift, urxvt::destroy_hook::
1132} 854}
1133 855
856sub x_resource {
857 my ($self, $name) = @_;
858 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
859 $self->{term}->x_resource ($name)
860}
861
862sub x_resource_boolean {
863 my ($self, $name) = @_;
864 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
865 $self->{term}->x_resource_boolean ($name)
866}
867
1134package urxvt::anyevent; 868package urxvt::anyevent;
1135 869
1136=head2 The C<urxvt::anyevent> Class 870=head2 The C<urxvt::anyevent> Class
1137 871
1138The sole purpose of this class is to deliver an interface to the 872The sole purpose of this class is to deliver an interface to the
1139C<AnyEvent> module - any module using it will work inside urxvt without 873C<AnyEvent> module - any module using it will work inside urxvt without
1140further programming. The only exception is that you cannot wait on 874further programming. The only exception is that you cannot wait on
1141condition variables, but non-blocking condvar use is ok. What this means 875condition variables, but non-blocking condvar use is ok.
1142is that you cannot use blocking APIs, but the non-blocking variant should 876
1143work. 877In practical terms this means is that you cannot use blocking APIs, but
878the non-blocking variant should work.
1144 879
1145=cut 880=cut
1146 881
1147our $VERSION = '5.23'; 882our $VERSION = '5.23';
1148 883
1207 942
1208sub DESTROY { 943sub DESTROY {
1209 $_[0][1]->stop; 944 $_[0][1]->stop;
1210} 945}
1211 946
947# only needed for AnyEvent < 6 compatibility
1212sub one_event { 948sub one_event {
1213 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API"; 949 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
1214} 950}
1215 951
1216package urxvt::term; 952package urxvt::term;
1231 urxvt::verbose 6, "register package $pkg to $self"; 967 urxvt::verbose 6, "register package $pkg to $self";
1232 968
1233 @{"$pkg\::ISA"} = urxvt::term::extension::; 969 @{"$pkg\::ISA"} = urxvt::term::extension::;
1234 970
1235 my $proxy = bless { 971 my $proxy = bless {
1236 _pkg => $pkg, 972 _pkg => $pkg,
973 _name => ${"$pkg\::_NAME"}, # hackish
1237 argv => $argv, 974 argv => $argv,
1238 }, $pkg; 975 }, $pkg;
1239 Scalar::Util::weaken ($proxy->{term} = $self); 976 Scalar::Util::weaken ($proxy->{term} = $self);
1240 977
1241 $self->{_pkg}{$pkg} = $proxy; 978 $self->{_pkg}{$pkg} = $proxy;
1242 979
1243 for my $name (@HOOKNAME) { 980 for my $name (@HOOKNAME) {
1244 if (my $ref = $pkg->can ("on_" . lc $name)) { 981 if (my $ref = $pkg->can ("on_" . lc $name)) {
1245 $proxy->enable ($name => $ref); 982 $proxy->enable ($name => $ref);
983 }
984 }
985}
986
987sub perl_libdirs {
988 map { split /:/ }
989 $_[0]->resource ("perl_lib"),
990 $ENV{URXVT_PERL_LIB},
991 "$ENV{HOME}/.urxvt/ext",
992 "$LIBDIR/perl"
993}
994
995sub scan_meta {
996 my ($self) = @_;
997 my @libdirs = perl_libdirs $self;
998
999 return if $self->{meta_libdirs} eq join "\x00", @libdirs;
1000
1001 my %meta;
1002
1003 $self->{meta_libdirs} = join "\x00", @libdirs;
1004 $self->{meta} = \%meta;
1005
1006 for my $dir (reverse @libdirs) {
1007 opendir my $fh, $dir
1008 or next;
1009 for my $ext (readdir $fh) {
1010 $ext ne "."
1011 and $ext ne ".."
1012 and open my $fh, "<", "$dir/$ext"
1013 or next;
1014
1015 while (<$fh>) {
1016 if (/^#:META:X_RESOURCE:(.*)/) {
1017 my ($pattern, $type, $desc) = split /:/, $1;
1018 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1019 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1020 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1021 } else {
1022 $meta{resource}{$pattern} = [$ext, $type, $desc];
1023 }
1024 } elsif (/^\s*(?:#|$)/) {
1025 # skip other comments and empty lines
1026 } else {
1027 last; # stop parsing on first non-empty non-comment line
1028 }
1029 }
1246 } 1030 }
1247 } 1031 }
1248} 1032}
1249 1033
1250=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1034=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1337 1121
1338Here is a likely non-exhaustive list of resource names, not all of which 1122Here is a likely non-exhaustive list of resource names, not all of which
1339are supported in every build, please see the source file F</src/rsinc.h> 1123are supported in every build, please see the source file F</src/rsinc.h>
1340to see the actual list: 1124to see the actual list:
1341 1125
1342 answerbackstring backgroundPixmap backspace_key blendtype blurradius 1126 answerbackstring backgroundPixmap backspace_key blurradius
1343 boldFont boldItalicFont borderLess buffered chdir color cursorBlink 1127 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
1344 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth 1128 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
1345 fade font geometry hold iconName iconfile imFont imLocale inputMethod 1129 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1346 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont 1130 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
1347 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier 1131 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
1367Returns the X-Resource for the given pattern, excluding the program or 1151Returns the X-Resource for the given pattern, excluding the program or
1368class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1152class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1369same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1153same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1370resource with that pattern exists. 1154resource with that pattern exists.
1371 1155
1156Extensions that define extra resource or command line arguments also need
1157to call this method to access their values.
1158
1159If the method is called on an extension object (basically, from an
1160extension), then the special prefix C<%.> will be replaced by the name of
1161the extension and a dot, and the lone string C<%> will be replaced by the
1162extension name itself. This makes it possible to code extensions so you
1163can rename them and get a new set of commandline switches and resources
1164without having to change the actual code.
1165
1372This method should only be called during the C<on_start> hook, as there is 1166This method should only be called during the C<on_start> hook, as there is
1373only one resource database per display, and later invocations might return 1167only one resource database per display, and later invocations might return
1374the wrong resources. 1168the wrong resources.
1375 1169
1376=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1170=item $value = $term->x_resource_boolean ($pattern)
1377 1171
1172Like C<x_resource>, above, but interprets the string value as a boolean
1173and returns C<1> for true values, C<0> for false values and C<undef> if
1174the resource or option isn't specified.
1175
1176You should always use this method to parse boolean resources.
1177
1178=cut
1179
1180sub x_resource_boolean {
1181 my $res = &x_resource;
1182
1183 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1184}
1185
1186=item $success = $term->parse_keysym ($key, $octets)
1187
1378Adds a keymap translation exactly as specified via a resource. See the 1188Adds a key binding exactly as specified via a resource. See the
1379C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1189C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1190
1191=item $term->register_command ($keysym, $modifiermask, $string)
1192
1193Adds a key binding. This is a lower level api compared to
1194C<parse_keysym>, as it expects a parsed key description, and can be
1195used only inside either the C<on_init> hook, to add a binding, or the
1196C<on_register_command> hook, to modify a parsed binding.
1380 1197
1381=item $rend = $term->rstyle ([$new_rstyle]) 1198=item $rend = $term->rstyle ([$new_rstyle])
1382 1199
1383Return and optionally change the current rendition. Text that is output by 1200Return and optionally change the current rendition. Text that is output by
1384the terminal application will use this style. 1201the terminal application will use this style.
1597 1414
1598Adds the specified events to the vt event mask. Useful e.g. when you want 1415Adds the specified events to the vt event mask. Useful e.g. when you want
1599to receive pointer events all the times: 1416to receive pointer events all the times:
1600 1417
1601 $term->vt_emask_add (urxvt::PointerMotionMask); 1418 $term->vt_emask_add (urxvt::PointerMotionMask);
1419
1420=item $term->set_urgency ($set)
1421
1422Enable/disable the urgency hint on the toplevel window.
1602 1423
1603=item $term->focus_in 1424=item $term->focus_in
1604 1425
1605=item $term->focus_out 1426=item $term->focus_out
1606 1427
1922=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height) 1743=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1923 1744
1924=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y) 1745=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1925 1746
1926=item $term->XChangeInput ($window, $add_events[, $del_events]) 1747=item $term->XChangeInput ($window, $add_events[, $del_events])
1748
1749=item $keysym = $term->XStringToKeysym ($string)
1750
1751=item $string = $term->XKeysymToString ($keysym)
1927 1752
1928Various X or X-related functions. The C<$term> object only serves as 1753Various X or X-related functions. The C<$term> object only serves as
1929the source of the display, otherwise those functions map more-or-less 1754the source of the display, otherwise those functions map more-or-less
1930directly onto the X functions of the same name. 1755directly onto the X functions of the same name.
1931 1756

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