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Revision 1.121 by root, Fri Jan 20 22:49:34 2006 UTC vs.
Revision 1.130 by root, Wed Jan 25 15:32:48 2006 UTC

66contain at least one pair of capturing parentheses, which will be used for 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 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
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: ^(/[^:]+):\
71 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:
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
132=item selection-autotransform 139=item readline (enabled by default)
133
134This selection allows you to do automatic transforms on a selection
135whenever a selection is made.
136
137It works by specifying perl snippets (most useful is a single C<s///>
138operator) that modify C<$_> as resources:
139
140 URxvt.selection-autotransform.0: transform
141 URxvt.selection-autotransform.1: transform
142 ...
143
144For example, the following will transform selections of the form
145C<filename:number>, often seen in compiler messages, into C<vi +$filename
146$word>:
147
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
149
150And this example matches the same,but replaces it with vi-commands you can
151paste directly into your (vi :) editor:
152
153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
154
155Of course, this can be modified to suit your needs and your editor :)
156
157To expand the example above to typical perl error messages ("XXX at
158FILENAME line YYY."), you need a slightly more elaborate solution:
159
160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
162
163The first line tells the selection code to treat the unchanging part of
164every error message as a selection pattern, and the second line transforms
165the message into vi commands to load the file.
166
167=item readline
168 140
169A support package that tries to make editing with readline easier. At the 141A support package that tries to make editing with readline easier. At the
170moment, it reacts to clicking with the left mouse button by trying to 142moment, it reacts to clicking with the left mouse button by trying to
171move the text cursor to this position. It does so by generating as many 143move the text cursor to this position. It does so by generating as many
172cursor-left or cursor-right keypresses as required (the this only works 144cursor-left or cursor-right keypresses as required (the this only works
173for programs that correctly support wide characters). 145for programs that correctly support wide characters).
174 146
175It only works when clicking into the same line (possibly extended over 147To avoid too many false positives, this is only done when:
176multiple rows) as the text cursor and on the primary screen, to reduce the 148
177risk of misinterpreting. The normal selection isn't disabled, so quick 149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
178successive clicks might interfere with selection creation in harmless 162might interfere with selection creation in harmless ways.
179ways. 163
164=item selection-autotransform
165
166This selection allows you to do automatic transforms on a selection
167whenever a selection is made.
168
169It works by specifying perl snippets (most useful is a single C<s///>
170operator) that modify C<$_> 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.
180 198
181=item tabbed 199=item tabbed
182 200
183This transforms the terminal into a tabbar with additional terminals, that 201This transforms the terminal into a tabbar with additional terminals, that
184is, it implements what is commonly refered to as "tabbed terminal". The topmost line 202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
194Uses 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
195make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
196resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
197the URL as first argument. 215the URL as first argument.
198 216
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
228
199=item automove-background 229=item automove-background
200 230
201This 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
202to 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
203a custom pixmap. No scaling is supported in this mode. Exmaple: 233a custom pixmap. No scaling is supported in this mode. Exmaple:
212 242
213=item digital-clock 243=item digital-clock
214 244
215Displays a digital clock using the built-in overlay. 245Displays a digital clock using the built-in overlay.
216 246
217=item example-refresh-hooks 247=item remote-clipboard
218 248
219Displays a very simple digital clock in the upper right corner of the 249Somewhat of a misnomer, this extension adds two menu entries to the
220window. Illustrates overwriting the refresh callbacks to create your own 250selection popup that allows one ti run external commands to store the
221overlays or changes. 251selection somewhere and fetch it again.
252
253We use it to implement a "distributed selection mechanism", which just
254means that one command uploads the file to a remote server, and another
255reads it.
256
257The commands can be set using the C<URxvt.remote-selection.store> and
258C<URxvt.remote-selection.fetch> resources. The first should read the
259selection to store from STDIN (always in UTF-8), the second should provide
260the selection data on STDOUT (also in UTF-8).
261
262The defaults (which are likely useless to you) use rsh and cat:
263
264 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
265 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
222 266
223=item selection-pastebin 267=item selection-pastebin
224 268
225This is a little rarely useful extension that Uploads the selection as 269This is a little rarely useful extension that Uploads the selection as
226textfile to a remote site (or does other things). (The implementation is 270textfile to a remote site (or does other things). (The implementation is
246After a successful upload the selection will be replaced by the text given 290After a successful upload the selection will be replaced by the text given
247in the C<selection-pastebin-url> resource (again, the % is the placeholder 291in the C<selection-pastebin-url> resource (again, the % is the placeholder
248for the filename): 292for the filename):
249 293
250 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% 294 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
295
296=item example-refresh-hooks
297
298Displays a very simple digital clock in the upper right corner of the
299window. Illustrates overwriting the refresh callbacks to create your own
300overlays or changes.
251 301
252=back 302=back
253 303
254=head1 API DOCUMENTATION 304=head1 API DOCUMENTATION
255 305
352Called at the very end of initialisation of a new terminal, just before 402Called at the very end of initialisation of a new terminal, just before
353trying to map (display) the toplevel and returning to the mainloop. 403trying to map (display) the toplevel and returning to the mainloop.
354 404
355=item on_destroy $term 405=item on_destroy $term
356 406
357Called whenever something tries to destroy terminal, before doing anything 407Called whenever something tries to destroy terminal, when the terminal is
358yet. If this hook returns true, then destruction is skipped, but this is 408still fully functional (not for long, though).
359rarely a good idea.
360 409
361=item on_reset $term 410=item on_reset $term
362 411
363Called after the screen is "reset" for any reason, such as resizing or 412Called after the screen is "reset" for any reason, such as resizing or
364control sequences. Here is where you can react on changes to size-related 413control sequences. Here is where you can react on changes to size-related
466 515
467=item on_refresh_end $term 516=item on_refresh_end $term
468 517
469Called just after the screen gets redrawn. See C<on_refresh_begin>. 518Called just after the screen gets redrawn. See C<on_refresh_begin>.
470 519
471=item on_keyboard_command $term, $string 520=item on_user_command $term, $string
472 521
473Called whenever the user presses a key combination that has a 522Called whenever the a user-configured event is being activated (e.g. via
474C<perl:string> action bound to it (see description of the B<keysym> 523a C<perl:string> action bound to a key, see description of the B<keysym>
475resource in the @@RXVT_NAME@@(1) manpage). 524resource in the @@RXVT_NAME@@(1) manpage).
525
526The event is simply the action string. This interface is assumed to change
527slightly in the future.
476 528
477=item on_x_event $term, $event 529=item on_x_event $term, $event
478 530
479Called on every X event received on the vt window (and possibly other 531Called on every X event received on the vt window (and possibly other
480windows). Should only be used as a last resort. Most event structure 532windows). Should only be used as a last resort. Most event structure
552our $LIBDIR; 604our $LIBDIR;
553our $RESNAME; 605our $RESNAME;
554our $RESCLASS; 606our $RESCLASS;
555our $RXVTNAME; 607our $RXVTNAME;
556 608
557our $NOCHAR = chr 0xfffe; 609our $NOCHAR = chr 0xffff;
558 610
559=head2 Variables in the C<urxvt> Package 611=head2 Variables in the C<urxvt> Package
560 612
561=over 4 613=over 4
562 614
709 unless $msg =~ /\n$/; 761 unless $msg =~ /\n$/;
710 urxvt::warn ($msg); 762 urxvt::warn ($msg);
711 }; 763 };
712} 764}
713 765
766no warnings 'utf8';
767
714my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 768my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
715 769
716sub verbose { 770sub verbose {
717 my ($level, $msg) = @_; 771 my ($level, $msg) = @_;
718 warn "$msg\n" if $level <= $verbosity; 772 warn "$msg\n" if $level <= $verbosity;
734 788
735 open my $fh, "<:raw", $path 789 open my $fh, "<:raw", $path
736 or die "$path: $!"; 790 or die "$path: $!";
737 791
738 my $source = 792 my $source =
739 "package $pkg; use strict; use utf8;\n" 793 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
740 . "#line 1 \"$path\"\n{\n" 794 . "#line 1 \"$path\"\n{\n"
741 . (do { local $/; <$fh> }) 795 . (do { local $/; <$fh> })
742 . "\n};\n1"; 796 . "\n};\n1";
743 797
744 eval $source 798 eval $source
769 $TERM->register_package ($_) for @pkg; 823 $TERM->register_package ($_) for @pkg;
770 } 824 }
771 825
772 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 826 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
773 if ($_ eq "default") { 827 if ($_ eq "default") {
774 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 828 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
775 } elsif (/^-(.*)$/) { 829 } elsif (/^-(.*)$/) {
776 delete $ext_arg{$1}; 830 delete $ext_arg{$1};
777 } elsif (/^([^<]+)<(.*)>$/) { 831 } elsif (/^([^<]+)<(.*)>$/) {
778 push @{ $ext_arg{$1} }, $2; 832 push @{ $ext_arg{$1} }, $2;
779 } else { 833 } else {
1299Replaces the event mask of the pty watcher by the given event mask. Can 1353Replaces the event mask of the pty watcher by the given event mask. Can
1300be used to suppress input and output handling to the pty/tty. See the 1354be used to suppress input and output handling to the pty/tty. See the
1301description of C<< urxvt::timer->events >>. Make sure to always restore 1355description of C<< urxvt::timer->events >>. Make sure to always restore
1302the previous value. 1356the previous value.
1303 1357
1358=item $fd = $term->pty_fd
1359
1360Returns the master file descriptor for the pty in use, or C<-1> if no pty
1361is used.
1362
1304=item $windowid = $term->parent 1363=item $windowid = $term->parent
1305 1364
1306Return the window id of the toplevel window. 1365Return the window id of the toplevel window.
1307 1366
1308=item $windowid = $term->vt 1367=item $windowid = $term->vt
1376 1435
1377=item $screen = $term->current_screen 1436=item $screen = $term->current_screen
1378 1437
1379Returns the currently displayed screen (0 primary, 1 secondary). 1438Returns the currently displayed screen (0 primary, 1 secondary).
1380 1439
1440=item $cursor_is_hidden = $term->hidden_cursor
1441
1442Returns wether the cursor is currently hidden or not.
1443
1381=item $view_start = $term->view_start ([$newvalue]) 1444=item $view_start = $term->view_start ([$newvalue])
1382 1445
1383Returns the row number of the topmost displayed line. Maximum value is 1446Returns the row number of the topmost displayed line. Maximum value is
1384C<0>, which displays the normal terminal contents. Lower values scroll 1447C<0>, which displays the normal terminal contents. Lower values scroll
1385this many lines into the scrollback buffer. 1448this many lines into the scrollback buffer.
1403If C<$new_text> is specified, it will replace characters in the current 1466If C<$new_text> is specified, it will replace characters in the current
1404line, starting at column C<$start_col> (default C<0>), which is useful 1467line, starting at column C<$start_col> (default C<0>), which is useful
1405to replace only parts of a line. The font index in the rendition will 1468to replace only parts of a line. The font index in the rendition will
1406automatically be updated. 1469automatically be updated.
1407 1470
1408C<$text> is in a special encoding: tabs and wide characters that use 1471C<$text> is in a special encoding: tabs and wide characters that use more
1409more than one cell when displayed are padded with C<$urxvt::NOCHAR> 1472than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1410characters. Characters with combining characters and other characters that 1473characters. Characters with combining characters and other characters that
1411do not fit into the normal tetx encoding will be replaced with characters 1474do not fit into the normal tetx encoding will be replaced with characters
1412in the private use area. 1475in the private use area.
1413 1476
1414You have to obey this encoding when changing text. The advantage is 1477You have to obey this encoding when changing text. The advantage is

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