ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/perl/selection
Revision: 1.31
Committed: Thu Jan 19 09:47:15 2006 UTC (18 years, 4 months ago) by root
Branch: MAIN
CVS Tags: rel-7_1
Changes since 1.30: +2 -1 lines
Log Message:
*** empty log message ***

File Contents

# User Rev Content
1 root 1.4 #! perl
2    
3 elmex 1.1 sub on_keyboard_command {
4 root 1.7 my ($self, $cmd) = @_;
5 elmex 1.2
6     $cmd eq "selection:rot13"
7 root 1.7 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection);
8 elmex 1.3
9     ()
10 elmex 1.1 }
11 root 1.5
12 root 1.23 sub on_init {
13     my ($self) = @_;
14    
15     for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) {
16     no re 'eval'; # just to be sure
17 root 1.31 $res = $self->locale_decode ($res);
18     utf8::encode $res;
19 root 1.23 push @{ $self->{patterns} }, qr/$res/;
20     }
21    
22     ()
23     }
24    
25 root 1.16 # "find interetsing things"-patterns
26 root 1.15 my @mark_patterns = (
27 root 1.24 # common types of "parentheses"
28 root 1.25 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space]]) }x,
29     qr{ (?<![^[:space:]]) ` ([^`']+) ' (?![^[:space]]) }x,
30     qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x,
31     qr{ (" [^"]* [^[:space:]] ") (?![^[:space]]) }x,
32     qr{ \< ([^<>[:space:]]+) \> }x,
33     qr{ \{ ([^{}[:space:]]+) \} }x,
34     qr{ \[ ([^{}[:space:]]+) \] }x,
35     qr{ \( ([^()[:space:]]+) \) }x,
36 root 1.14
37 root 1.20 # urls, just a heuristic
38     qr{(
39     (?:https?|ftp|news|mailto|file)://[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~]+
40     [ab-zA-Z0-9\-\@;\/?:&=%\$_+!*\x27()~] # exclude some trailing characters (heuristic)
41     )}x,
42    
43 root 1.17 # shell-like argument quoting, basically always matches
44 root 1.11 qr{\G [\ \t|&;<>()] *(
45 root 1.9 (?:
46 root 1.11 [^\\"'\ \t|&;<>()]+
47 root 1.9 | \\.
48 root 1.13 | " (?: [^\\"]+ | \\. )* "
49 root 1.9 | ' [^']* '
50     )+
51 root 1.14 )}x,
52 root 1.8 );
53    
54 root 1.16 # "correct obvious? crap"-patterns
55 root 1.15 my @simplify_patterns = (
56     qr{^"([^\\"'\ \t|&;<>()*?]+)"$}, # "simple" => simple
57 root 1.16 qr{^(.*)[,\-]$}, # strip off trailing , and -
58 root 1.15 );
59 root 1.14
60 root 1.6 sub on_sel_extend {
61 root 1.21 my ($self, $time) = @_;
62 root 1.8
63     my ($row, $col) = $self->selection_mark;
64     my $line = $self->line ($row);
65     my $text = $line->t;
66 root 1.20 my $markofs = $line->offset_of ($row, $col);
67     my $curlen = $line->offset_of ($self->selection_end)
68     - $line->offset_of ($self->selection_beg);
69    
70     my @matches;
71 root 1.8
72 root 1.26 # not doing matches in unicode mode helps speed
73     # enourmously here. working in utf-8 should be
74     # equivalent due to the magic of utf-8 encoding.
75     utf8::encode $text;
76     study $text; # _really_ helps, too :)
77    
78 root 1.23 for my $regex (@mark_patterns, @{ $self->{patterns} }) {
79 root 1.8 while ($text =~ /$regex/g) {
80 root 1.20 if ($-[1] <= $markofs and $markofs <= $+[1]) {
81 root 1.16 my $ofs = $-[1];
82 root 1.15 my $match = $1;
83    
84     for my $regex (@simplify_patterns) {
85     if ($match =~ $regex) {
86     $match = $1;
87 root 1.16 $ofs += $-[1];
88 root 1.15 }
89     }
90    
91 root 1.20 push @matches, [$ofs, length $match];
92 root 1.8 }
93     }
94     }
95    
96 root 1.21 # whole line
97     push @matches, [0, ($line->end - $line->beg + 1) * $self->ncol];
98    
99 root 1.20 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) {
100     my ($ofs, $len) = @$_;
101    
102     next if $len <= $curlen;
103    
104     $self->selection_beg ($line->coord_of ($ofs));
105     $self->selection_end ($line->coord_of ($ofs + $len));
106     return 1;
107     }
108    
109 root 1.21 ()
110 root 1.5 }