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Revision 1.1 by root, Sat Nov 11 20:06:34 2006 UTC vs.
Revision 1.40 by root, Fri Dec 9 05:06:46 2022 UTC

1#! perl 1#! perl
2 2
3# Author: Tim Pope <rxvt-unicodeNOSPAM@tpope.info> 3# Author: Tim Pope <rxvt-unicodeNOSPAM@tpope.org>
4# Bob Farrell <robertanthonyfarrell@gmail.com>
5# Emanuele Giaquinta
6
7#:META:RESOURCE:%.launcher:string:default launcher command
8#:META:RESOURCE:%.button:string:the mouse button used to activate a match
9#:META:RESOURCE:%.pattern.:string:extra pattern to match
10#:META:RESOURCE:%.launcher.:string:custom launcher for pattern
11#:META:RESOURCE:%.rend.:string:custom rendition for pattern
12
13=head1 NAME
14
15matcher - match strings in terminal output and change their rendition
16
17=head1 DESCRIPTION
18
19Uses per-line display filtering (C<on_line_update>) to underline text
20matching a certain pattern and make it clickable. When clicked with the
21mouse button specified in the C<matcher.button> resource (default 2, or
22middle), the program specified in the C<matcher.launcher> resource
23(default, the C<url-launcher> resource, C<sensible-browser>) will be started
24with the matched text as first argument. The default configuration is
25suitable for matching URLs and launching a web browser, like the
26former "mark-urls" extension.
27
28The default pattern to match URLs can be overridden with the
29C<matcher.pattern.0> resource, and additional patterns can be specified
30with numbered patterns, in a manner similar to the "selection" extension.
31The launcher can also be overridden on a per-pattern basis.
32
33It is possible to activate the most recently seen match or a list of matches
34from the keyboard. Simply bind a keysym to "matcher:last" or
35"matcher:list" as seen in the example below.
36
37The C<matcher:select> action enables a mode in which it is possible to
38iterate over the matches using the keyboard and either activate them
39or copy them to the clipboard. While the mode is active, normal terminal
40input/output is suspended and the following bindings are recognized:
41
42=over
43
44=item C<Up>
45
46Search for a match upwards.
47
48=item C<Down>
49
50Search for a match downwards.
51
52=item C<Home>
53
54Jump to the topmost match.
55
56=item C<End>
57
58Jump to the bottommost match.
59
60=item C<Escape>
61
62Leave the mode and return to the point where search was started.
63
64=item C<Enter>
65
66Activate the current match.
67
68=item C<y>
69
70Copy the current match to the clipboard.
71
72=back
73
74It is also possible to cycle through the matches using a key
75combination bound to the C<matcher:select> action.
76
77Example: load and use the matcher extension with defaults.
78
79 URxvt.perl-ext: default,matcher
80
81Example: use a custom configuration.
82
83 URxvt.url-launcher: sensible-browser
84 URxvt.keysym.C-Delete: matcher:last
85 URxvt.keysym.M-Delete: matcher:list
86 URxvt.matcher.button: 1
87 URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
88 URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
89 URxvt.matcher.launcher.2: gvim +$2 $1
90
91=head2 Regex encoding/wide character matching
92
93Urxvt stores all text as unicode, in a special encoding that uses
94one character/code point per column. For various reasons, the regular
95expressions are matched directly against this encoding, which means there are a few things
96you need to keep in mind:
97
98=over
99
100=item X resources/command line arguments are locale-encoded
101
102The regexes taken from the command line or resources will be converted
103from locale encoding to unicode. This can change the number of code points
104per character.
105
106=item Wide characters are column-padded with C<$urxvt::NOCHAR>
107
108Wide characters (such as kanji and sometimes tabs) are padded with
109a special character value (C<$urxvt::NOCHAR>). That means that
110constructs such as C<\w> or C<.> will only match part of a character, as
111C<$urxvt::NOCHAR> is not matched by C<\w> and both only match the first
112"column" of a wide character.
113
114That means you have to incorporate C<$urxvt::NOCHAR> into parts of regexes
115that may match wide characters. For example, to match C<\w+> you might
116want to use C<[\w$urxvt::NOCHAR]+> instead, and to match a single character
117(C<.>) you might want to use C<.$urxvt::NOCHAR*> instead.
118
119=back
120
121=cut
4 122
5my $url = 123my $url =
6 qr{ 124 qr{
7 (?:https?://|ftp://|news://|mailto:|file://|\bwww\.)[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~#]+ 125 (?:https?://|ftp://|news://|mailto:|file://|\bwww\.)
126 [\w\-\@;\/?:&=%\$.+!*\x27,~#$urxvt::NOCHAR]*
127 (
128 \([\w\-\@;\/?:&=%\$.+!*\x27,~#$urxvt::NOCHAR]*\)| # Allow a pair of matched parentheses
8 [ab-zA-Z0-9\-\@;\/?:&=%\$_+*()~] # exclude some trailing characters (heuristic) 129 [\w\-\@;\/?:&=%\$+*~] # exclude some trailing characters (heuristic)
130 )+
9 }x; 131 }x;
10 132
133sub matchlist_key_press {
134 my ($self, $event, $keysym, $octets) = @_;
135
136 delete $self->{overlay};
137 $self->disable ("key_press");
138
139 my $i = ($keysym == 96 ? 0 : $keysym - 48);
140 if ($i >= 0 && $i < @{ $self->{matches} }) {
141 my @exec = @{ $self->{matches}[$i] };
142 $self->exec_async (@exec[5 .. $#exec]);
143 }
144
145 1
146}
147
148# backwards compat
149sub on_user_command {
150 my ($self, $cmd) = @_;
151
152 if ($cmd eq "matcher:list") {
153 $self->matchlist;
154 } elsif ($cmd eq "matcher:last") {
155 $self->most_recent;
156 } elsif ($cmd eq "matcher:select") {
157 $self->select_enter;
158 } elsif ($cmd eq "matcher") {
159 # for backward compatibility
160 $self->most_recent;
161 }
162
163 ()
164}
165
166sub on_action {
167 my ($self, $action) = @_;
168
169 if ($action eq "list") {
170 $self->matchlist;
171 } elsif ($action eq "last") {
172 $self->most_recent;
173 } elsif ($action eq "select") {
174 $self->select_enter;
175 }
176
177 ()
178}
179
180sub matchlist {
181 my ($self) = @_;
182
183 $self->{matches} = [];
184 my $row = $self->nrow - 1;
185 while ($row >= 0 && @{ $self->{matches} } < 10) {
186 my $line = $self->line ($row);
187 my @matches = $self->find_matches ($row);
188
189 for (sort { $b->[0] <=> $a->[0] or $b->[1] <=> $a->[1] } @matches) {
190 push @{ $self->{matches} }, $_;
191 last if @{ $self->{matches} } == 10;
192 }
193
194 $row = $line->beg - 1;
195 }
196
197 return unless @{ $self->{matches} };
198
199 my $width = 0;
200
201 my $i = 0;
202 for my $match (@{ $self->{matches} }) {
203 my $text = $match->[4];
204 my $w = $self->strwidth ("$i-$text");
205
206 $width = $w if $w > $width;
207 $i++;
208 }
209
210 $width = $self->ncol - 2 if $width > $self->ncol - 2;
211
212 $self->{overlay} = $self->overlay (0, 0, $width, scalar (@{ $self->{matches} }), urxvt::OVERLAY_RSTYLE, 2);
213 my $i = 0;
214 for my $match (@{ $self->{matches} }) {
215 my $text = $match->[4];
216
217 $self->{overlay}->set (0, $i, "$i-$text");
218 $i++;
219 }
220
221 $self->enable (key_press => \&matchlist_key_press);
222}
223
224sub most_recent {
225 my ($self) = shift;
226 my $row = $self->nrow - 1;
227 my @exec;
228
229 while ($row >= $self->top_row) {
230 my $line = $self->line ($row);
231 @exec = $self->command_for ($row);
232 last if @exec;
233
234 $row = $line->beg - 1;
235 }
236
237 if (@exec) {
238 return $self->exec_async (@exec);
239 }
240
241 ()
242}
243
11sub my_resource { 244sub my_resource {
12 my $self = shift; 245 $_[0]->x_resource ("%.$_[1]")
13 $self->x_resource("$self->{name}.$_[0]"); 246}
247
248# turn a rendition spec in the resource into a sub that implements it on $_
249sub parse_rend {
250 my ($self, $str) = @_;
251 my ($mask, $fg, $bg, $failed) = $str ? urxvt::rend2mask($str)
252 : (urxvt::RS_Uline, undef, undef, []);
253 warn "Failed to parse rendition string: " . join(',', @$failed) if @$failed;
254 my @rend;
255 push @rend, sub { $_ |= $mask } if $mask;
256 push @rend, sub { $_ = urxvt::SET_FGCOLOR($_, $fg) } if defined $fg;
257 push @rend, sub { $_ = urxvt::SET_BGCOLOR($_, $bg) } if defined $bg;
258 sub {
259 for my $s ( @rend ) { &$s };
260 }
14} 261}
15 262
16sub on_start { 263sub on_start {
17 my ($self) = @_; 264 my ($self) = @_;
18 265
19 ($self->{name} = __PACKAGE__) =~ s/.*:://; 266 $self->{launcher} = $self->my_resource ("launcher") || $self->x_resource("url-launcher") || "sensible-browser";
20 $self->{name} =~ tr/_/-/;
21 $self->{launcher} = $self->my_resource("launcher") ||
22 $self->x_resource("urlLauncher") ||
23 "sensible-browser";
24 267
25 $self->{button} = 2; 268 $self->{button} = 2;
26 $self->{state} = 0; 269 $self->{state} = 0;
27 if($self->{argv}[0] || $self->my_resource("button")) { 270 if($self->{argv}[0] || $self->my_resource ("button")) {
28 my @mods = split('', $self->{argv}[0] || $self->my_resource("button")); 271 my @mods = split '', $self->{argv}[0] || $self->my_resource ("button");
29 for my $mod (@mods) { 272 for my $mod (@mods) {
30 if($mod =~ /^\d+$/) { 273 if($mod =~ /^\d+$/) {
31 $self->{button} = $mod; 274 $self->{button} = $mod;
32 } elsif($mod eq "C") { 275 } elsif($mod eq "C") {
33 $self->{state} |= urxvt::ControlMask; 276 $self->{state} |= urxvt::ControlMask;
34 } elsif($mod eq "S") { 277 } elsif($mod eq "S") {
35 $self->{state} |= urxvt::ShiftMask; 278 $self->{state} |= urxvt::ShiftMask;
36 } elsif($mod eq "M") { 279 } elsif($mod eq "M") {
37 $self->{state} |= $self->ModMetaMask; 280 $self->{state} |= $self->ModMetaMask;
38 } elsif($mod ne "-" && $mod ne " ") { 281 } elsif($mod ne "-" && $mod ne " ") {
39 warn("$mod is invalid in $self->{name}<$self->{argv}[0]>\n"); 282 warn("$mod is invalid in $self->{_name}<$self->{argv}[0]>\n");
40 } 283 }
41 } 284 }
42 } 285 }
43 286
44 my @defaults = ($url); 287 my @defaults = ($url);
45 my @matchers; 288 my @matchers;
46 for (my $idx = 0; defined (my $res = $self->my_resource("pattern.$idx") || $defaults[$idx]); $idx++) { 289 for (my $idx = 0; defined (my $res = $self->locale_decode ($self->my_resource ("pattern.$idx")) || $defaults[$idx]); $idx++) {
47 $res = $self->locale_decode ($res);
48 utf8::encode $res;
49 my $launcher = $self->my_resource("launcher.$idx"); 290 my $launcher = $self->my_resource ("launcher.$idx");
50 $launcher =~ s/\$&|\$\{&\}/\${0}/g if ($launcher); 291 $launcher =~ s/\$&|\$\{&\}/\${0}/g if $launcher;
292 my $rend = $self->parse_rend($self->my_resource ("rend.$idx"));
51 push @matchers, [qr($res)x,$launcher]; 293 unshift @matchers, [qr($res)x,$launcher,$rend];
52 } 294 }
53 $self->{matchers} = \@matchers; 295 $self->{matchers} = \@matchers;
54 296
55 () 297 ()
56} 298}
59 my ($self, $row) = @_; 301 my ($self, $row) = @_;
60 302
61 # fetch the line that has changed 303 # fetch the line that has changed
62 my $line = $self->line ($row); 304 my $line = $self->line ($row);
63 my $text = $line->t; 305 my $text = $line->t;
64 my $i = 0; 306 my $rend;
65 307
66 # find all urls (if any) 308 # find all urls (if any)
67 for my $matcher (@{$self->{matchers}}) { 309 for my $matcher (@{$self->{matchers}}) {
68 while ($text =~ /$matcher->[0]/g) { 310 while ($text =~ /$matcher->[0]/g) {
311 #print "$&\n";
69 my $rend = $line->r; 312 $rend ||= $line->r;
70 313
71 # mark all characters as underlined. we _must_ not toggle underline, 314 # mark all characters as underlined. we _must_ not toggle underline,
72 # as we might get called on an already-marked url. 315 # as we might get called on an already-marked url.
73 $_ |= urxvt::RS_Uline 316 &{$matcher->[2]}
74 for @{$rend}[ $-[0] .. $+[0] - 1]; 317 for @{$rend}[$-[0] .. $+[0] - 1];
75
76 $line->r ($rend);
77 } 318 }
78 } 319 }
320
321 $line->r ($rend) if $rend;
79 322
80 () 323 ()
81} 324}
82 325
83sub valid_button { 326sub valid_button {
86 | urxvt::ShiftMask | urxvt::ControlMask; 329 | urxvt::ShiftMask | urxvt::ControlMask;
87 return ($event->{button} == $self->{button} && 330 return ($event->{button} == $self->{button} &&
88 ($event->{state} & $mask) == $self->{state}); 331 ($event->{state} & $mask) == $self->{state});
89} 332}
90 333
91sub command_for { 334sub find_matches {
92 my ($self, $row, $col) = @_; 335 my ($self, $row, $col) = @_;
93 my $line = $self->line ($row); 336 my $line = $self->line ($row);
94 my $text = $line->t; 337 my $text = $line->t;
338 my $off = $line->offset_of ($row, $col) if defined $col;
95 339
340 my @matches;
96 for my $matcher (@{$self->{matchers}}) { 341 for my $matcher (@{$self->{matchers}}) {
97 my $launcher = $matcher->[1] || $self->{launcher}; 342 my $launcher = $matcher->[1] || $self->{launcher};
98 while (($text =~ /$matcher->[0]/g)) { 343 while ($text =~ /$matcher->[0]/g) {
99 my $match = $&; 344 my $match = substr $text, $-[0], $+[0] - $-[0];
100 my @begin = @-; 345 my @begin = @-;
101 my @end = @+; 346 my @end = @+;
102 if ($-[0] <= $col && $+[0] >= $col) { 347 my @exec;
348
349 if (!(defined $off) || ($-[0] <= $off && $+[0] >= $off)) {
103 if ($launcher !~ /\$/) { 350 if ($launcher !~ /\$/) {
104 return ($launcher,$match); 351 @exec = ($launcher, $match);
105 } else { 352 } else {
106 # It'd be nice to just access a list like ($&,$1,$2...), 353 # It'd be nice to just access a list like ($&,$1,$2...),
107 # but alas, m//g behaves differently in list context. 354 # but alas, m//g behaves differently in list context.
108 my @exec = map { s/\$(\d+)|\$\{(\d+)\}/ 355 @exec = map {
356 s{\$(\d+)|\$\{(\d+)\}}{
109 substr($text,$begin[$1||$2],$end[$1||$2]-$begin[$1||$2]) 357 substr $text, $begin[$1 || $2], $end[$1 || $2] - $begin[$1 || $2]
358 }egx;
359 $_
110 /egx; $_ } split(/\s+/, $launcher); 360 } split /\s+/, $launcher;
111 return @exec;
112 } 361 }
362
363 push @matches, [ $line->coord_of ($begin[0]), $line->coord_of ($end[0]), $match, @exec ];
113 } 364 }
114 } 365 }
366 }
367
368 @matches
369}
370
371sub command_for {
372 my ($self, $row, $col) = @_;
373
374 my @matches = $self->find_matches ($row, $col);
375 if (@matches) {
376 my @match = @{ $matches[0] };
377 return @match[5 .. $#match];
115 } 378 }
116 379
117 () 380 ()
118} 381}
119 382
120sub on_button_press { 383sub on_button_press {
121 my ($self, $event) = @_; 384 my ($self, $event) = @_;
385
386 if (
122 if($self->valid_button($event)) { 387 $self->valid_button ($event)
388 && (my @exec = $self->command_for ($event->{row}, $event->{col}))
389 ) {
123 $self->{row} = $event->{row}; 390 $self->{row} = $event->{row};
124 $self->{col} = $event->{col}; 391 $self->{col} = $event->{col};
392 $self->{cmd} = \@exec;
393 return 1;
125 } else { 394 } else {
126 delete $self->{row}; 395 delete $self->{row};
127 delete $self->{col}; 396 delete $self->{col};
397 delete $self->{cmd};
128 } 398 }
129 399
130 () 400 ()
131} 401}
132 402
133sub on_button_release { 403sub on_button_release {
134 my ($self, $event) = @_; 404 my ($self, $event) = @_;
135 405
136 my $row = delete $self->{row}; 406 my $row = delete $self->{row};
137 my $col = delete $self->{col}; 407 my $col = delete $self->{col};
408 my $cmd = delete $self->{cmd};
138 409
139 if(defined($row) && $row == $event->{row} && abs($col-$event->{col}) < 2) { 410 return if !defined $row;
411
412 if (
413 $row == $event->{row}
414 && (abs $col-$event->{col}) < 2
415 && (join "\x00", @$cmd) eq (join "\x00", $self->command_for ($row, $col))
416 ) {
140 if($self->valid_button($event)) { 417 if ($self->valid_button ($event)) {
141
142 my @exec = $self->command_for($row,$col);
143 if(@exec) {
144 return $self->exec_async (@exec); 418 $self->exec_async (@$cmd);
145 } 419 }
146
147 }
148 } 420 }
149 421
422 1;
423}
424
425sub select_enter {
426 my ($self) = @_;
427
428 $self->{view_start} = $self->view_start;
429 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
430 $self->{cur_row} = $self->nrow - 1;
431
432 $self->enable (
433 key_press => \&select_key_press,
434 refresh_begin => \&select_refresh,
435 refresh_end => \&select_refresh,
150 () 436 );
437
438 $self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
439 $self->{overlay}->set (0, 0, "match-select");
440}
441
442sub select_leave {
443 my ($self) = @_;
444
445 $self->disable ("key_press", "refresh_begin", "refresh_end");
446 $self->pty_ev_events ($self->{pty_ev_events});
447
448 delete $self->{overlay};
449 delete $self->{matches};
450 delete $self->{id};
451}
452
453sub select_search {
454 my ($self, $dir, $row) = @_;
455
456 while ($self->nrow > $row && $row >= $self->top_row) {
457 my $line = $self->line ($row)
458 or last;
459
460 my @matches = $self->find_matches ($row);
461 if (@matches) {
462 @matches = sort { $a->[0] <=> $b->[0] or $a->[1] <=> $b->[1] } @matches;
463 $self->{matches} = \@matches;
464 $self->{cur_row} = $row;
465 $self->{id} = $dir < 0 ? @{ $self->{matches} } - 1 : 0;
466 $self->view_start ($row - ($self->nrow >> 1));
467 $self->want_refresh;
468 return 1;
469 }
470
471 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
472 }
473
474 $self->scr_bell;
475
476 ()
477}
478
479sub select_refresh {
480 my ($self) = @_;
481
482 return unless $self->{matches};
483
484 my $cur = $self->{matches}[$self->{id}];
485 $self->scr_xor_span (@$cur[0 .. 3], urxvt::RS_RVid);
486
487 ()
488}
489
490sub select_key_press {
491 my ($self, $event, $keysym, $string) = @_;
492
493 if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter
494 if ($self->{matches}) {
495 my @match = @{ $self->{matches}[$self->{id}] };
496 $self->exec_async (@match[5 .. $#match]);
497 }
498 $self->select_leave;
499 } elsif ($keysym == 0x79) { # y
500 if ($self->{matches}) {
501 $self->selection ($self->{matches}[$self->{id}][4], 1);
502 $self->selection_grab (urxvt::CurrentTime, 1);
503 }
504 $self->select_leave;
505 } elsif ($keysym == 0xff1b) { # escape
506 $self->view_start ($self->{view_start});
507 $self->select_leave;
508 } elsif ($keysym == 0xff50) { # home
509 $self->select_search (+1, $self->top_row)
510 } elsif ($keysym == 0xff57) { # end
511 $self->select_search (-1, $self->nrow - 1)
512 } elsif ($keysym == 0xff52) { # up
513 if ($self->{id} > 0) {
514 $self->{id}--;
515 $self->want_refresh;
516 } else {
517 my $line = $self->line ($self->{cur_row});
518 $self->select_search (-1, $line->beg - 1)
519 if $line->beg > $self->top_row;
520 }
521 } elsif ($keysym == 0xff54) { # down
522 if ($self->{id} < @{ $self->{matches} } - 1) {
523 $self->{id}++;
524 $self->want_refresh;
525 } else {
526 my $line = $self->line ($self->{cur_row});
527 $self->select_search (+1, $line->end + 1)
528 if $line->end < $self->nrow;
529 }
530 } elsif ($self->lookup_keysym ($keysym, $event->{state}) eq "matcher:select") {
531 if ($self->{id} > 0) {
532 $self->{id}--;
533 $self->want_refresh;
534 } else {
535 my $line = $self->line ($self->{cur_row});
536 $self->select_search (-1, $self->nrow - 1)
537 unless $self->select_search (-1, $line->beg - 1);
538 }
539 }
540
541 1
151} 542}
152 543
153# vim:set sw=3 sts=3 et: 544# vim:set sw=3 sts=3 et:

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