ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/perl/selection
Revision: 1.21
Committed: Thu Jan 12 09:55:44 2006 UTC (18 years, 5 months ago) by root
Branch: MAIN
Changes since 1.20: +5 -6 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #! perl
2
3 sub on_keyboard_command {
4 my ($self, $cmd) = @_;
5
6 $cmd eq "selection:rot13"
7 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection);
8
9 ()
10 }
11
12 # "find interetsing things"-patterns
13 my @mark_patterns = (
14 qr{([[:alnum:]]+)},
15
16 # common "parentheses"
17 qr{(?:^|\s) ‘ ([^‘’]+?) ’ (?:\s|\)|$)}x,
18 qr{(?:^|\s) ` ([^`']+?) ' (?:\s|\)|$)}x,
19 qr{ \{ ([^{}]+?) \} }x,
20 qr{ \[ ([^{}]+?) \] }x,
21
22 # urls, just a heuristic
23 qr{(
24 (?:https?|ftp|news|mailto|file)://[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~]+
25 [ab-zA-Z0-9\-\@;\/?:&=%\$_+!*\x27()~] # exclude some trailing characters (heuristic)
26 )}x,
27
28 # shell-like argument quoting, basically always matches
29 qr{\G [\ \t|&;<>()] *(
30 (?:
31 [^\\"'\ \t|&;<>()]+
32 | \\.
33 | " (?: [^\\"]+ | \\. )* "
34 | ' [^']* '
35 )+
36 )}x,
37 );
38
39 # "correct obvious? crap"-patterns
40 my @simplify_patterns = (
41 qr{^"([^\\"'\ \t|&;<>()*?]+)"$}, # "simple" => simple
42 qr{^(.*)[,\-]$}, # strip off trailing , and -
43 );
44
45 sub on_sel_extend {
46 my ($self, $time) = @_;
47
48 my ($row, $col) = $self->selection_mark;
49 my $line = $self->line ($row);
50 my $text = $line->t;
51 my $markofs = $line->offset_of ($row, $col);
52 my $curlen = $line->offset_of ($self->selection_end)
53 - $line->offset_of ($self->selection_beg);
54
55 my @matches;
56
57 for my $regex (@mark_patterns) {
58 while ($text =~ /$regex/g) {
59 if ($-[1] <= $markofs and $markofs <= $+[1]) {
60 my $ofs = $-[1];
61 my $match = $1;
62
63 push @matches, [$ofs, length $match];
64
65 for my $regex (@simplify_patterns) {
66 if ($match =~ $regex) {
67 $match = $1;
68 $ofs += $-[1];
69 }
70 }
71
72 push @matches, [$ofs, length $match];
73 }
74 }
75 }
76
77 # whole line
78 push @matches, [0, ($line->end - $line->beg + 1) * $self->ncol];
79
80 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) {
81 my ($ofs, $len) = @$_;
82
83 next if $len <= $curlen;
84
85 $self->selection_beg ($line->coord_of ($ofs));
86 $self->selection_end ($line->coord_of ($ofs + $len));
87 return 1;
88 }
89
90 ()
91 }