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Comparing rxvt-unicode/src/perl/selection (file contents):
Revision 1.27 by elmex, Tue Jan 17 13:07:16 2006 UTC vs.
Revision 1.61 by sf-exg, Mon Jun 9 19:54:26 2014 UTC

1#! perl 1#! perl
2use Digest::MD5 qw/md5_hex/;
3 2
4my $timers = {}; 3#:META:RESOURCE:%.pattern-0:string:first selection pattern
5my $pastebin_cmd;
6my $pastebin_url;
7 4
8sub on_start { 5=head1 NAME
9 my ($self) = @_;
10 $pastebin_cmd =
11 (urxvt::untaint $self->x_resource ("selection-pastebin-cmd"))
12 or "scp -p % ruth:/var/www/www.ta-sa.org/files/txt/";
13 6
14 $pastebin_url = 7selection - more intelligent selection (enabled by default)
15 (urxvt::untaint $self->x_resource ("selection-pastebin-url"))
16 or "http://www.ta-sa.org/files/txt/";
17 ();
18}
19 8
20sub upload_paste { 9=head1 DESCRIPTION
21 my ($self) = @_;
22 10
23 my $txt = $self->selection; 11This extension tries to be more intelligent when the user extends
24 my $h = md5_hex ($txt); 12selections (double-click and further clicks). Right now, it tries to
13select words, urls and complete shell-quoted arguments, which is very
14convenient, too, if your F<ls> supports C<--quoting-style=shell>.
25 15
26 my $fn = "/tmp/$h.txt"; 16A double-click usually selects the word under the cursor, further clicks
17will enlarge the selection.
27 18
28 my $msg = "uploaded $h.txt"; 19The selection works by trying to match a number of regexes and displaying
20them in increasing order of length. You can add your own regexes by
21specifying resources of the form:
29 22
30 if (open my $o, ">" . $fn) { 23 URxvt.selection.pattern-0: perl-regex
31 print $o $txt; 24 URxvt.selection.pattern-1: perl-regex
32 close $o; 25 ...
33 } else {
34 $msg = "couldn't write $fn: $!";
35 }
36 26
37 my $cmd = $pastebin_cmd; 27The index number (0, 1...) must not have any holes, and each regex must
38 $cmd =~ s/%/$fn/; 28contain at least one pair of capturing parentheses, which will be used for
39 unless (system ($cmd) == 0) { 29the match. For example, the following adds a regex that matches everything
40 $msg = "couldn't upload, '$cmd' failed"; 30between two vertical bars:
41 }
42 31
43 $self->selection ($pastebin_url . "$h.txt"); 32 URxvt.selection.pattern-0: \\|([^|]+)\\|
44 33
45 my $ov = $timers->{ov} = $self->overlay (-1, 0, length ($msg), 1, urxvt::OVERLAY_RSTYLE, 0); 34Another example: Programs I use often output "absolute path: " at the
46 $ov->set (0, 0, $msg); 35beginning of a line when they process multiple files. The following
36pattern matches the filename (note, there is a single space at the very
37end):
47 38
48 $timers->{t1} = 39 URxvt.selection.pattern-0: ^(/[^:]+):\
49 urxvt::timer
50 ->new
51 ->start ((int urxvt::NOW) + 5) # make sure we update "on" the second
52 ->interval (1)
53 ->cb (sub { delete $timers->{ov}; delete $timers->{t1}; });
54}
55 40
41You can look at the source of the selection extension to see more
42interesting uses, such as parsing a line from beginning to end.
43
44This extension also offers the following actions:
45
46=over 4
47
48=item rot13
49
50Rot-13 the selection when activated.
51
52Example:
53
54 URxvt.keysym.C-M-r: selection:rot13
55
56=back
57
58=cut
59
56sub on_keyboard_command { 60sub on_user_command {
57 my ($self, $cmd) = @_; 61 my ($self, $cmd) = @_;
58 62
59 $cmd eq "selection:rot13" 63 $cmd eq "selection:rot13"
60 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection); 64 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection);
61 65
62 $cmd eq "selection:remote-pastebin" 66 ()
63 and upload_paste ($self); 67}
68
69sub on_action {
70 my ($self, $action) = @_;
71
72 $action eq "rot13"
73 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection);
64 74
65 () 75 ()
66} 76}
67 77
68sub on_init { 78sub on_init {
69 my ($self) = @_; 79 my ($self) = @_;
70 80
81 if (defined (my $res = $self->resource ("cutchars"))) {
82 $res = $self->locale_decode ($res);
83 push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x;
84 }
85
71 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) { 86 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) {
72 no re 'eval'; # just to be sure
73 $res = utf8::encode $self->locale_decode ($res); 87 $res = $self->locale_decode ($res);
74 push @{ $self->{patterns} }, qr/$res/; 88 push @{ $self->{patterns} }, qr/$res/;
75 } 89 }
90
91 $self->{enabled} = 1;
92
93 push @{ $self->{term}{option_popup_hook} }, sub {
94 ("new selection" => $self->{enabled}, sub { $self->{enabled} = shift })
95 };
76 96
77 () 97 ()
78} 98}
79 99
80# "find interetsing things"-patterns 100# "find interesting things"-patterns
81my @mark_patterns = ( 101my @mark_patterns = (
102# qr{ ([[:word:]]+) }x,
103 qr{ ([^[:space:]]+) }x,
104
82 # common types of "parentheses" 105 # common types of "parentheses"
106 qr{ (?<![^[:space:]]) [`'] ([^`']+) [`'] (?![^[:space:]]) }x,
83 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space]]) }x, 107 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x,
84 qr{ (?<![^[:space:]]) ` ([^`']+) ' (?![^[:space]]) }x, 108 qr{ (?<![^[:space:]]) ([^“”]+) (?![^[:space:]]) }x,
109
110 qr{ (?<![^[:space:]]) (' [^[:space:]] [^']* ') }x,
111 qr{ (' [^']* [^[:space:]] ') (?![^[:space:]]) }x,
112 qr{ (?<![^[:space:]]) (` [^[:space:]] [^']* ') }x,
113 qr{ (` [^']* [^[:space:]] ') (?![^[:space:]]) }x,
85 qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x, 114 qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x,
86 qr{ (" [^"]* [^[:space:]] ") (?![^[:space]]) }x, 115 qr{ (" [^"]* [^[:space:]] ") (?![^[:space:]]) }x,
87 qr{ \< ([^<>[:space:]]+) \> }x, 116
88 qr{ \{ ([^{}[:space:]]+) \} }x, 117 qr{ \{ ([^\{\}]+) \} }x,
89 qr{ \[ ([^{}[:space:]]+) \] }x,
90 qr{ \( ([^()[:space:]]+) \) }x, 118 qr{ \( ([^\(\)]+) \) }x,
119 qr{ \[ ([^\[\]]+) \] }x,
120 qr{ \< ([^\<\>]+) \> }x,
91 121
92 # urls, just a heuristic 122 # urls, just a heuristic
93 qr{( 123 qr{(
94 (?:https?|ftp|news|mailto|file)://[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~]+ 124 (?:https?://|ftp://|news://|mailto:|file://|\bwww\.)[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~#]+
95 [ab-zA-Z0-9\-\@;\/?:&=%\$_+!*\x27()~] # exclude some trailing characters (heuristic) 125 [ab-zA-Z0-9\-\@;\/?:&=%\$_+*()~] # exclude some trailing characters (heuristic)
96 )}x, 126 )}x,
97 127
98 # shell-like argument quoting, basically always matches 128 # shell-like argument quoting, basically always matches
99 qr{\G [\ \t|&;<>()] *( 129 qr{\G [\ \t|&;<>()]* (
100 (?: 130 (?:
101 [^\\"'\ \t|&;<>()]+ 131 [^\\"'\ \t|&;<>()]+
102 | \\. 132 | \\.
103 | " (?: [^\\"]+ | \\. )* " 133 | " (?: [^\\"]+ | \\. )* "
104 | ' [^']* ' 134 | ' [^']* '
113); 143);
114 144
115sub on_sel_extend { 145sub on_sel_extend {
116 my ($self, $time) = @_; 146 my ($self, $time) = @_;
117 147
148 $self->{enabled}
149 or return;
150
118 my ($row, $col) = $self->selection_mark; 151 my ($row, $col) = $self->selection_mark;
119 my $line = $self->line ($row); 152 my $line = $self->line ($row);
120 my $text = $line->t; 153 my $text = $line->t;
121 my $markofs = $line->offset_of ($row, $col); 154 my $markofs = $line->offset_of ($row, $col);
122 my $curlen = $line->offset_of ($self->selection_end) 155 my $curlen = $line->offset_of ($self->selection_end)
123 - $line->offset_of ($self->selection_beg); 156 - $line->offset_of ($self->selection_beg);
124 157
125 my @matches; 158 my @matches;
126 159
127 # not doing matches in unicode mode helps speed 160 if ($markofs < $line->l) {
128 # enourmously here. working in utf-8 should be
129 # equivalent due to the magic of utf-8 encoding.
130 utf8::encode $text;
131 study $text; # _really_ helps, too :) 161 study $text; # _really_ helps, too :)
132 162
133 for my $regex (@mark_patterns, @{ $self->{patterns} }) { 163 for my $regex (@mark_patterns, @{ $self->{patterns} }) {
134 while ($text =~ /$regex/g) { 164 while ($text =~ /$regex/g) {
135 if ($-[1] <= $markofs and $markofs <= $+[1]) { 165 if ($-[1] <= $markofs and $markofs <= $+[1]) {
136 my $ofs = $-[1]; 166 my $ofs = $-[1];
137 my $match = $1; 167 my $match = $1;
138 168
139 for my $regex (@simplify_patterns) { 169 for my $regex (@simplify_patterns) {
140 if ($match =~ $regex) { 170 if ($match =~ $regex) {
141 $match = $1; 171 $match = $1;
142 $ofs += $-[1]; 172 $ofs += $-[1];
173 }
143 } 174 }
175
176 push @matches, [$ofs, length $match];
144 } 177 }
145
146 push @matches, [$ofs, length $match];
147 } 178 }
148 } 179 }
149 } 180 }
150 181
151 # whole line 182 # whole line

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