[ViewVC] Annotation of: cvs/rxvt-unicode/src/perl/matcher

#! perl

# Author: Tim Pope <rxvt-unicodeNOSPAM@tpope.org>
#          Bob Farrell <robertanthonyfarrell@gmail.com>

#:META:X_RESOURCE:%.launcher:string:default launcher command
#:META:X_RESOURCE:%.button:string:the button, yeah
#:META:X_RESOURCE:%.pattern.:string:extra pattern to match
#:META:X_RESOURCE:%.launcher.:string:custom launcher for pattern
#:META:X_RESOURCE:%.rend.:string:custom rednition for pattern

my $url =
   qr{
      (?:https?://|ftp://|news://|mailto:|file://|\bwww\.)
      [a-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27,~#]*
      (
         \([a-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27,~#]*\)| # Allow a pair of matched parentheses
         [a-zA-Z0-9\-\@;\/?:&=%\$_+*~]  # exclude some trailing characters (heuristic)
      )+
   }x;

sub on_key_press {
   my ($self, $event, $keysym, $octets) = @_;

   if (! $self->{showing} ) {
      return;
   }

   my $i = ($keysym == 96 ? 0 : $keysym - 48);
   if (($i > scalar(@{$self->{urls}})) || ($i < 0)) {
      $self->matchlist();
      return;
   }

   my @args = ($self->{urls}[ -$i-1 ]);
   $self->matchlist();

   $self->exec_async( $self->{launcher}, @args );
}

sub on_user_command {
   my ($self, $cmd) = @_;

   if($cmd =~ s/^matcher:list\b//) {
      $self->matchlist();
   } else {
      if($cmd =~ s/^matcher:last\b//) {
         $self->most_recent;
      }
   # For backward compatibility
    else {
      if($cmd =~ s/^matcher\b//) {
         $self->most_recent;
      }
   }
  }
   ()
}

sub matchlist {
   my ($self) = @_;
   if ( $self->{showing} ) {
     $self->{url_overlay}->hide();
     $self->{showing} = 0;
     return;
   }
  @{$self->{urls}} = ();
  my $line;
  for (my $i = 0; $i < $self->nrow; $i ++) {
     $line = $self->line($i);
     next if ($line->beg != $i);
     for my $url ($self->get_urls_from_line($line->t)) {
        if (scalar(@{$self->{urls}}) == 10) {
            shift @{$self->{urls}};
        }
        push @{$self->{urls}}, $url;
     }
  }

  if (! scalar(@{$self->{urls}})) {
    return;
  }

  my $max = 0;
  my $i = scalar( @{$self->{urls}} ) - 1 ;;

  my @temp = ();

  for my $url (@{$self->{urls}}) {
     my $url = "$i-$url";
     my $xpos = 0;

     if ($self->ncol + (length $url) >= $self->ncol) {
        $url = substr( $url, 0, $self->ncol );
     }

     push @temp, $url;

     if( length $url > $max ) {
        $max = length $url;
     }

     $i--;
  }

  @temp = reverse @temp;

  $self->{url_overlay} = $self->overlay(0, 0, $max, scalar( @temp ), urxvt::OVERLAY_RSTYLE, 2);
  my $i = 0;
  for my $url (@temp) {
     $self->{url_overlay}->set( 0, $i, $url, [(urxvt::OVERLAY_RSTYLE) x length $url]);
        $self->{showing} = 1;
     $i++;
  }

}

sub most_recent {
   my ($self) = shift;
   my $row = $self->nrow;
   my @exec;
   while($row-- > $self->top_row) {
      @exec = $self->command_for($row);
      last if(@exec);
   }
   if(@exec) {
      return $self->exec_async (@exec);
   }
   ()
}

sub my_resource {
   $_[0]->x_resource ("%.$_[1]")
}

# turn a rendition spec in the resource into a sub that implements it on $_
sub parse_rend {
   my ($self, $str) = @_;
   my ($mask, $fg, $bg, $failed) = $str ? urxvt::rend2mask($str)
                                        : (urxvt::RS_Uline, undef, undef, []);
   warn "Failed to parse rendition string: " . join(',', @$failed) if @$failed;
   my @rend;
   push @rend, sub { $_ |= $mask } if $mask;
   push @rend, sub { $_ = urxvt::SET_FGCOLOR($_, $fg) } if defined $fg;
   push @rend, sub { $_ = urxvt::SET_BGCOLOR($_, $bg) } if defined $bg;
   sub {
      for my $s ( @rend ) { &$s };
   }
}

sub on_start {
   my ($self) = @_;

   $self->{launcher} = $self->my_resource ("launcher") || $self->x_resource("url-launcher") || "sensible-browser";

   $self->{urls} = [];
   $self->{showing} = 0;
   $self->{button}  = 2;
   $self->{state}   = 0;
   if($self->{argv}[0] || $self->my_resource ("button")) {
      my @mods = split '', $self->{argv}[0] || $self->my_resource ("button");
      for my $mod (@mods) {
         if($mod =~ /^\d+$/) {
            $self->{button} = $mod;
         } elsif($mod eq "C") {
            $self->{state} |= urxvt::ControlMask;
         } elsif($mod eq "S") {
            $self->{state} |= urxvt::ShiftMask;
         } elsif($mod eq "M") {
            $self->{state} |= $self->ModMetaMask;
         } elsif($mod ne "-" && $mod ne " ") {
            warn("$mod is invalid in $self->{_name}<$self->{argv}[0]>\n");
         }
      }
   }

   my @defaults = ($url);
   my @matchers;
   for (my $idx = 0; defined (my $res = $self->my_resource ("pattern.$idx") || $defaults[$idx]); $idx++) {
      $res = $self->locale_decode ($res);
      utf8::encode $res;
      my $launcher = $self->my_resource ("launcher.$idx");
      $launcher =~ s/\$&|\$\{&\}/\${0}/g if $launcher;
      my $rend = $self->parse_rend($self->my_resource ("rend.$idx"));
      unshift @matchers, [qr($res)x,$launcher,$rend];
   }
   $self->{matchers} = \@matchers;

   ()
}

sub get_urls_from_line {
   my ($self, $line) = @_;
   my @urls;
   for my $matcher (@{$self->{matchers}}) {
     while ($line =~ /$matcher->[0]/g) {
        push @urls, substr( $line, $-[0], $+[0] - $-[0] );
     }
   }
   return @urls;
}

sub on_line_update {
   my ($self, $row) = @_;

   # fetch the line that has changed
   my $line = $self->line ($row);
   my $text = $line->t;
   my $i = 0;

   # find all urls (if any)
   for my $matcher (@{$self->{matchers}}) {
      while ($text =~ /$matcher->[0]/g) {
         #print "$&\n";
         my $rend = $line->r;

         # mark all characters as underlined. we _must_ not toggle underline,
         # as we might get called on an already-marked url.
         &{$matcher->[2]}
         for @{$rend}[ $-[0] .. $+[0] - 1];

         $line->r ($rend);
      }
   }

   ()
}

sub valid_button {
   my ($self, $event) = @_;
   my $mask = $self->ModLevel3Mask | $self->ModMetaMask
   | urxvt::ShiftMask | urxvt::ControlMask;
   return ($event->{button} == $self->{button} &&
      ($event->{state} & $mask) == $self->{state});
}

sub command_for {
   my ($self, $row, $col) = @_;
   my $line = $self->line ($row);
   my $text = $line->t;

   for my $matcher (@{$self->{matchers}}) {
      my $launcher = $matcher->[1] || $self->{launcher};
      while (($text =~ /$matcher->[0]/g)) {
         my $match = $&;
         my @begin = @-;
         my @end = @+;
         if (!defined($col) || ($-[0] <= $col && $+[0] >= $col)) {
            if ($launcher !~ /\$/) {
               return ($launcher,$match);
            } else {
               # It'd be nice to just access a list like ($&,$1,$2...),
               # but alas, m//g behaves differently in list context.
               my @exec = map { s/\$(\d+)|\$\{(\d+)\}/
                  substr($text,$begin[$1||$2],$end[$1||$2]-$begin[$1||$2])
                  /egx; $_ } split(/\s+/, $launcher);
               return @exec;
            }
         }
      }
   }

   ()
}

sub on_button_press {
   my ($self, $event) = @_;
   if($self->valid_button($event)
      && (my @exec = $self->command_for($event->{row},$event->{col}))) {
      $self->{row} = $event->{row};
      $self->{col} = $event->{col};
      $self->{cmd} = \@exec;
      return 1;
   } else {
      delete $self->{row};
      delete $self->{col};
      delete $self->{cmd};
   }

   ()
}

sub on_button_release {
   my ($self, $event) = @_;

   my $row = delete $self->{row};
   my $col = delete $self->{col};
   my $cmd = delete $self->{cmd};

   return if !defined $row;

   if($row == $event->{row} && abs($col-$event->{col}) < 2
      && join("\x00", @$cmd) eq join("\x00", $self->command_for($row,$col))) {
      if($self->valid_button($event)) {

         $self->exec_async (@$cmd);

      }
   }

   1;
}

# vim:set sw=3 sts=3 et:
Revision:	1.9
Committed:	Sun Jun 10 13:58:05 2012 UTC (11 years, 11 months ago) by root
Branch:	MAIN
Changes since 1.8:	+2 -5 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#! perl
2
3	sf-tpope	1.7	# Author: Tim Pope <rxvt-unicodeNOSPAM@tpope.org>
4	sf-tpope	1.6	# Bob Farrell <robertanthonyfarrell@gmail.com>
5	root	1.1
6	root	1.8	#:META:X_RESOURCE:%.launcher:string:default launcher command
7			#:META:X_RESOURCE:%.button:string:the button, yeah
8			#:META:X_RESOURCE:%.pattern.:string:extra pattern to match
9			#:META:X_RESOURCE:%.launcher.:string:custom launcher for pattern
10			#:META:X_RESOURCE:%.rend.:string:custom rednition for pattern
11
12	root	1.1	my $url =
13			qr{
14	tpope	1.2	(?:https?://\|ftp://\|news://\|mailto:\|file://\|\bwww\.)
15			[a-zA-Z0-9\-\@;\/?:&=%\$_.+!\x27,~#]
16			(
17			\([a-zA-Z0-9\-\@;\/?:&=%\$_.+!\x27,~#]\)\| # Allow a pair of matched parentheses
18			[a-zA-Z0-9\-\@;\/?:&=%\$_+*~] # exclude some trailing characters (heuristic)
19			)+
20	root	1.1	}x;
21
22	sf-tpope	1.6	sub on_key_press {
23			my ($self, $event, $keysym, $octets) = @_;
24
25			if (! $self->{showing} ) {
26			return;
27			}
28
29			my $i = ($keysym == 96 ? 0 : $keysym - 48);
30			if (($i > scalar(@{$self->{urls}})) \|\| ($i < 0)) {
31			$self->matchlist();
32			return;
33			}
34
35			my @args = ($self->{urls}[ -$i-1 ]);
36			$self->matchlist();
37
38			$self->exec_async( $self->{launcher}, @args );
39			}
40
41	tpope	1.4	sub on_user_command {
42			my ($self, $cmd) = @_;
43	sf-tpope	1.6
44			if($cmd =~ s/^matcher:list\b//) {
45			$self->matchlist();
46			} else {
47			if($cmd =~ s/^matcher:last\b//) {
48			$self->most_recent;
49			}
50			# For backward compatibility
51			else {
52			if($cmd =~ s/^matcher\b//) {
53			$self->most_recent;
54			}
55	tpope	1.4	}
56	sf-tpope	1.6	}
57	tpope	1.4	()
58			}
59
60	sf-tpope	1.6	sub matchlist {
61			my ($self) = @_;
62			if ( $self->{showing} ) {
63			$self->{url_overlay}->hide();
64			$self->{showing} = 0;
65			return;
66			}
67			@{$self->{urls}} = ();
68			my $line;
69			for (my $i = 0; $i < $self->nrow; $i ++) {
70			$line = $self->line($i);
71			next if ($line->beg != $i);
72			for my $url ($self->get_urls_from_line($line->t)) {
73			if (scalar(@{$self->{urls}}) == 10) {
74			shift @{$self->{urls}};
75			}
76			push @{$self->{urls}}, $url;
77			}
78			}
79
80			if (! scalar(@{$self->{urls}})) {
81			return;
82			}
83
84			my $max = 0;
85			my $i = scalar( @{$self->{urls}} ) - 1 ;;
86
87			my @temp = ();
88
89			for my $url (@{$self->{urls}}) {
90			my $url = "$i-$url";
91			my $xpos = 0;
92
93			if ($self->ncol + (length $url) >= $self->ncol) {
94			$url = substr( $url, 0, $self->ncol );
95			}
96
97			push @temp, $url;
98
99			if( length $url > $max ) {
100			$max = length $url;
101			}
102
103			$i--;
104			}
105
106			@temp = reverse @temp;
107
108			$self->{url_overlay} = $self->overlay(0, 0, $max, scalar( @temp ), urxvt::OVERLAY_RSTYLE, 2);
109			my $i = 0;
110			for my $url (@temp) {
111			$self->{url_overlay}->set( 0, $i, $url, [(urxvt::OVERLAY_RSTYLE) x length $url]);
112			$self->{showing} = 1;
113			$i++;
114			}
115
116			}
117
118	tpope	1.4	sub most_recent {
119			my ($self) = shift;
120			my $row = $self->nrow;
121			my @exec;
122			while($row-- > $self->top_row) {
123			@exec = $self->command_for($row);
124			last if(@exec);
125			}
126			if(@exec) {
127			return $self->exec_async (@exec);
128			}
129			()
130			}
131	tpope	1.2
132	root	1.1	sub my_resource {
133	root	1.9	$_[0]->x_resource ("%.$_[1]")
134	root	1.1	}
135
136	tpope	1.2	# turn a rendition spec in the resource into a sub that implements it on $_
137			sub parse_rend {
138			my ($self, $str) = @_;
139	sf-tpope	1.6	my ($mask, $fg, $bg, $failed) = $str ? urxvt::rend2mask($str)
140	tpope	1.2	: (urxvt::RS_Uline, undef, undef, []);
141			warn "Failed to parse rendition string: " . join(',', @$failed) if @$failed;
142			my @rend;
143			push @rend, sub { $_ \|= $mask } if $mask;
144			push @rend, sub { $_ = urxvt::SET_FGCOLOR($_, $fg) } if defined $fg;
145			push @rend, sub { $_ = urxvt::SET_BGCOLOR($_, $bg) } if defined $bg;
146			sub {
147			for my $s ( @rend ) { &$s };
148			}
149			}
150
151	root	1.1	sub on_start {
152			my ($self) = @_;
153
154	root	1.8	$self->{launcher} = $self->my_resource ("launcher") \|\| $self->x_resource("url-launcher") \|\| "sensible-browser";
155	root	1.1
156	sf-tpope	1.6	$self->{urls} = [];
157			$self->{showing} = 0;
158	root	1.1	$self->{button} = 2;
159			$self->{state} = 0;
160	root	1.8	if($self->{argv}[0] \|\| $self->my_resource ("button")) {
161			my @mods = split '', $self->{argv}[0] \|\| $self->my_resource ("button");
162	root	1.1	for my $mod (@mods) {
163			if($mod =~ /^\d+$/) {
164			$self->{button} = $mod;
165			} elsif($mod eq "C") {
166			$self->{state} \|= urxvt::ControlMask;
167			} elsif($mod eq "S") {
168			$self->{state} \|= urxvt::ShiftMask;
169			} elsif($mod eq "M") {
170			$self->{state} \|= $self->ModMetaMask;
171			} elsif($mod ne "-" && $mod ne " ") {
172	root	1.9	warn("$mod is invalid in $self->{_name}<$self->{argv}[0]>\n");
173	root	1.1	}
174			}
175			}
176
177			my @defaults = ($url);
178			my @matchers;
179	root	1.8	for (my $idx = 0; defined (my $res = $self->my_resource ("pattern.$idx") \|\| $defaults[$idx]); $idx++) {
180	root	1.1	$res = $self->locale_decode ($res);
181			utf8::encode $res;
182	root	1.8	my $launcher = $self->my_resource ("launcher.$idx");
183			$launcher =~ s/\$&\|\$\{&\}/\${0}/g if $launcher;
184			my $rend = $self->parse_rend($self->my_resource ("rend.$idx"));
185	tpope	1.2	unshift @matchers, [qr($res)x,$launcher,$rend];
186	root	1.1	}
187			$self->{matchers} = \@matchers;
188
189			()
190			}
191
192	sf-tpope	1.6	sub get_urls_from_line {
193			my ($self, $line) = @_;
194			my @urls;
195			for my $matcher (@{$self->{matchers}}) {
196			while ($line =~ /$matcher->[0]/g) {
197			push @urls, substr( $line, $-[0], $+[0] - $-[0] );
198			}
199			}
200			return @urls;
201			}
202
203	root	1.1	sub on_line_update {
204			my ($self, $row) = @_;
205
206			# fetch the line that has changed
207			my $line = $self->line ($row);
208			my $text = $line->t;
209			my $i = 0;
210
211			# find all urls (if any)
212			for my $matcher (@{$self->{matchers}}) {
213			while ($text =~ /$matcher->[0]/g) {
214	tpope	1.2	#print "$&\n";
215	root	1.1	my $rend = $line->r;
216
217			# mark all characters as underlined. we _must_ not toggle underline,
218			# as we might get called on an already-marked url.
219	tpope	1.2	&{$matcher->[2]}
220	root	1.1	for @{$rend}[ $-[0] .. $+[0] - 1];
221
222			$line->r ($rend);
223			}
224			}
225
226			()
227			}
228
229			sub valid_button {
230			my ($self, $event) = @_;
231			my $mask = $self->ModLevel3Mask \| $self->ModMetaMask
232			\| urxvt::ShiftMask \| urxvt::ControlMask;
233			return ($event->{button} == $self->{button} &&
234			($event->{state} & $mask) == $self->{state});
235			}
236
237			sub command_for {
238			my ($self, $row, $col) = @_;
239			my $line = $self->line ($row);
240			my $text = $line->t;
241
242			for my $matcher (@{$self->{matchers}}) {
243			my $launcher = $matcher->[1] \|\| $self->{launcher};
244			while (($text =~ /$matcher->[0]/g)) {
245			my $match = $&;
246			my @begin = @-;
247			my @end = @+;
248	tpope	1.2	if (!defined($col) \|\| ($-[0] <= $col && $+[0] >= $col)) {
249	root	1.1	if ($launcher !~ /\$/) {
250			return ($launcher,$match);
251			} else {
252			# It'd be nice to just access a list like ($&,$1,$2...),
253			# but alas, m//g behaves differently in list context.
254			my @exec = map { s/\$(\d+)\|\$\{(\d+)\}/
255			substr($text,$begin[$1\|\|$2],$end[$1\|\|$2]-$begin[$1\|\|$2])
256			/egx; $_ } split(/\s+/, $launcher);
257			return @exec;
258			}
259			}
260			}
261			}
262
263			()
264			}
265
266			sub on_button_press {
267			my ($self, $event) = @_;
268	sf-tpope	1.5	if($self->valid_button($event)
269			&& (my @exec = $self->command_for($event->{row},$event->{col}))) {
270	root	1.1	$self->{row} = $event->{row};
271			$self->{col} = $event->{col};
272	sf-tpope	1.5	$self->{cmd} = \@exec;
273			return 1;
274	root	1.1	} else {
275			delete $self->{row};
276			delete $self->{col};
277	sf-tpope	1.5	delete $self->{cmd};
278	root	1.1	}
279
280			()
281			}
282
283			sub on_button_release {
284			my ($self, $event) = @_;
285
286			my $row = delete $self->{row};
287			my $col = delete $self->{col};
288	sf-tpope	1.5	my $cmd = delete $self->{cmd};
289	root	1.1
290	sf-tpope	1.5	return if !defined $row;
291
292			if($row == $event->{row} && abs($col-$event->{col}) < 2
293			&& join("\x00", @$cmd) eq join("\x00", $self->command_for($row,$col))) {
294	root	1.1	if($self->valid_button($event)) {
295
296	sf-tpope	1.5	$self->exec_async (@$cmd);
297	root	1.1
298			}
299			}
300
301	sf-tpope	1.5	1;
302	root	1.1	}
303
304			# vim:set sw=3 sts=3 et: