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/cvs/rxvt-unicode/src/perl/selection
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Comparing rxvt-unicode/src/perl/selection (file contents):
Revision 1.8 by root, Tue Jan 3 20:47:36 2006 UTC vs.
Revision 1.42 by root, Mon Nov 19 09:13:47 2007 UTC

1#! perl 1#! perl
2 2
3sub on_keyboard_command { 3sub on_user_command {
4 my ($self, $cmd) = @_; 4 my ($self, $cmd) = @_;
5 5
6 $cmd eq "selection:rot13" 6 $cmd eq "selection:rot13"
7 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection); 7 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection);
8 8
9 () 9 ()
10} 10}
11 11
12sub on_init {
13 my ($self) = @_;
14
15 if (defined (my $res = $self->resource ("cutchars"))) {
16 $res = $self->locale_decode ($res);
17 push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x;
18 }
19
20 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) {
21 $res = $self->locale_decode ($res);
22 utf8::encode $res;
23 push @{ $self->{patterns} }, qr/$res/;
24 }
25
26 $self->{enabled} = 1;
27
28 push @{ $self->{term}{option_popup_hook} }, sub {
29 ("new selection" => $self->{enabled}, sub { $self->{enabled} = shift })
30 };
31
32 ()
33}
34
35# "find interesting things"-patterns
12my @patterns = ( 36my @mark_patterns = (
13 # urls 37 qr{ ([[:word:]]+) }x,
14 qr{ ([a-z0-9.+\-]+://[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),]+) }x, 38 qr{ ([^[:space:]]+) }x,
39
40 # common types of "parentheses"
41 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x,
42 qr{ (?<![^[:space:]]) ` ([^`']+) ' (?![^[:space:]]) }x,
43 qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x,
44 qr{ (" [^"]* [^[:space:]] ") (?![^[:space:]]) }x,
45 qr{ \< ([^<>[:space:]]+) \> }x,
46 qr{ \{ ([^{}[:space:]]+) \} }x,
47 qr{ \[ ([^{}[:space:]]+) \] }x,
48 qr{ \( ([^()[:space:]]+) \) }x,
49
50 # urls, just a heuristic
51 qr{(
52 (?:https?://|ftp://|news://|mailto:|file://|\bwww\.)[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~#]+
53 [ab-zA-Z0-9\-\@;\/?:&=%\$_+*()~] # exclude some trailing characters (heuristic)
54 )}x,
55
56 # shell-like argument quoting, basically always matches
57 qr{\G [\ \t|&;<>()]* (
58 (?:
59 [^\\"'\ \t|&;<>()]+
60 | \\.
61 | " (?: [^\\"]+ | \\. )* "
62 | ' [^']* '
63 )+
64 )}x,
65);
66
67# "correct obvious? crap"-patterns
68my @simplify_patterns = (
69 qr{^"([^\\"'\ \t|&;<>()*?]+)"$}, # "simple" => simple
70 qr{^(.*)[,\-]$}, # strip off trailing , and -
15); 71);
16 72
17sub on_sel_extend { 73sub on_sel_extend {
18 my ($self) = @_; 74 my ($self, $time) = @_;
75
76 $self->{enabled}
77 or return;
19 78
20 my ($row, $col) = $self->selection_mark; 79 my ($row, $col) = $self->selection_mark;
21 my $line = $self->line ($row); 80 my $line = $self->line ($row);
22 my $offset = $line->offset_of ($row, $col);
23 my $text = $line->t; 81 my $text = $line->t;
82 my $markofs = $line->offset_of ($row, $col);
83 my $curlen = $line->offset_of ($self->selection_end)
84 - $line->offset_of ($self->selection_beg);
24 85
25 for my $regex (@patterns) { 86 my @matches;
87
88 if ($markofs < $line->l) {
89 # convert markofs from character to UTF-8 offset space
90 {
91 my $prefix = substr $text, 0, $markofs;
92 utf8::encode $prefix;
93 $markofs = length $prefix;
94 }
95
96 # not doing matches in unicode mode helps speed
97 # enourmously here. working in utf-8 should be
98 # equivalent due to the magic of utf-8 encoding.
99 utf8::encode $text;
100 study $text; # _really_ helps, too :)
101
102 for my $regex (@mark_patterns, @{ $self->{patterns} }) {
26 while ($text =~ /$regex/g) { 103 while ($text =~ /$regex/g) {
27 if ($-[0] <= $offset and $offset <= $+[0]) { 104 if ($-[1] <= $markofs and $markofs <= $+[1]) {
28 $self->selection_beg ($line->coord_of ($-[0])); 105 my $ofs = $-[1];
29 $self->selection_end ($line->coord_of ($+[0])); 106 my $match = $1;
30 return 1; 107
108 for my $regex (@simplify_patterns) {
109 if ($match =~ $regex) {
110 $match = $1;
111 $ofs += $-[1];
112 }
113 }
114
115 push @matches, [$ofs, length $match];
116 }
31 } 117 }
32 } 118 }
33 } 119 }
34 120
121 # whole line
122 push @matches, [0, ($line->end - $line->beg + 1) * $self->ncol];
123
124 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) {
125 my ($ofs, $len) = @$_;
126
127 next if $len <= $curlen;
128
129 # convert back from UTF-8 offset space to character space
130 {
131 my $length = substr "$text ", $ofs, $len;
132 utf8::decode $length;
133 $len = length $length;
134 }
135 {
136 my $prefix = substr $text, 0, $ofs;
137 utf8::decode $prefix;
138 $ofs = length $prefix;
139 }
140
141 $self->selection_beg ($line->coord_of ($ofs));
142 $self->selection_end ($line->coord_of ($ofs + $len));
143 return 1;
144 }
145
35 () 146 ()
36} 147}

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