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/cvs/rxvt-unicode/src/perl/selection
Revision: 1.25
Committed: Thu Jan 12 23:30:51 2006 UTC (18 years, 4 months ago) by root
Branch: MAIN
CVS Tags: rel-7_0
Changes since 1.24: +8 -7 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     push @{ $self->{patterns} }, qr/$res/;
18     }
19    
20     ()
21     }
22    
23 root 1.16 # "find interetsing things"-patterns
24 root 1.15 my @mark_patterns = (
25 root 1.24 # common types of "parentheses"
26 root 1.25 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space]]) }x,
27     qr{ (?<![^[:space:]]) ` ([^`']+) ' (?![^[:space]]) }x,
28     qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x,
29     qr{ (" [^"]* [^[:space:]] ") (?![^[:space]]) }x,
30     qr{ \< ([^<>[:space:]]+) \> }x,
31     qr{ \{ ([^{}[:space:]]+) \} }x,
32     qr{ \[ ([^{}[:space:]]+) \] }x,
33     qr{ \( ([^()[:space:]]+) \) }x,
34 root 1.14
35 root 1.20 # urls, just a heuristic
36     qr{(
37     (?:https?|ftp|news|mailto|file)://[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~]+
38     [ab-zA-Z0-9\-\@;\/?:&=%\$_+!*\x27()~] # exclude some trailing characters (heuristic)
39     )}x,
40    
41 root 1.17 # shell-like argument quoting, basically always matches
42 root 1.11 qr{\G [\ \t|&;<>()] *(
43 root 1.9 (?:
44 root 1.11 [^\\"'\ \t|&;<>()]+
45 root 1.9 | \\.
46 root 1.13 | " (?: [^\\"]+ | \\. )* "
47 root 1.9 | ' [^']* '
48     )+
49 root 1.14 )}x,
50 root 1.8 );
51    
52 root 1.16 # "correct obvious? crap"-patterns
53 root 1.15 my @simplify_patterns = (
54     qr{^"([^\\"'\ \t|&;<>()*?]+)"$}, # "simple" => simple
55 root 1.16 qr{^(.*)[,\-]$}, # strip off trailing , and -
56 root 1.15 );
57 root 1.14
58 root 1.6 sub on_sel_extend {
59 root 1.21 my ($self, $time) = @_;
60 root 1.8
61     my ($row, $col) = $self->selection_mark;
62     my $line = $self->line ($row);
63     my $text = $line->t;
64 root 1.20 my $markofs = $line->offset_of ($row, $col);
65     my $curlen = $line->offset_of ($self->selection_end)
66     - $line->offset_of ($self->selection_beg);
67    
68     my @matches;
69 root 1.8
70 root 1.23 for my $regex (@mark_patterns, @{ $self->{patterns} }) {
71 root 1.8 while ($text =~ /$regex/g) {
72 root 1.20 if ($-[1] <= $markofs and $markofs <= $+[1]) {
73 root 1.16 my $ofs = $-[1];
74 root 1.15 my $match = $1;
75    
76     for my $regex (@simplify_patterns) {
77     if ($match =~ $regex) {
78     $match = $1;
79 root 1.16 $ofs += $-[1];
80 root 1.15 }
81     }
82    
83 root 1.20 push @matches, [$ofs, length $match];
84 root 1.8 }
85     }
86     }
87    
88 root 1.21 # whole line
89     push @matches, [0, ($line->end - $line->beg + 1) * $self->ncol];
90    
91 root 1.20 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) {
92     my ($ofs, $len) = @$_;
93    
94     next if $len <= $curlen;
95    
96     $self->selection_beg ($line->coord_of ($ofs));
97     $self->selection_end ($line->coord_of ($ofs + $len));
98     return 1;
99     }
100    
101 root 1.21 ()
102 root 1.5 }