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/cvs/rxvt-unicode/src/perl/selection
Revision: 1.54
Committed: Wed Jun 6 15:06:41 2012 UTC (11 years, 11 months ago) by root
Branch: MAIN
Changes since 1.53: +2 -0 lines
Log Message:
*** empty log message ***

File Contents

# User Rev Content
1 root 1.4 #! perl
2    
3 root 1.54 #:META:X_RESOURCE:%.pattern-0:string:first selection pattern
4    
5 root 1.36 sub on_user_command {
6 root 1.7 my ($self, $cmd) = @_;
7 elmex 1.2
8     $cmd eq "selection:rot13"
9 root 1.7 and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection);
10 elmex 1.3
11     ()
12 elmex 1.1 }
13 root 1.5
14 root 1.23 sub on_init {
15     my ($self) = @_;
16    
17 root 1.35 if (defined (my $res = $self->resource ("cutchars"))) {
18     $res = $self->locale_decode ($res);
19     push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x;
20     }
21    
22 root 1.23 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) {
23 root 1.31 $res = $self->locale_decode ($res);
24 root 1.23 push @{ $self->{patterns} }, qr/$res/;
25     }
26    
27 root 1.37 $self->{enabled} = 1;
28    
29     push @{ $self->{term}{option_popup_hook} }, sub {
30     ("new selection" => $self->{enabled}, sub { $self->{enabled} = shift })
31     };
32    
33 root 1.23 ()
34     }
35    
36 root 1.34 # "find interesting things"-patterns
37 root 1.15 my @mark_patterns = (
38 root 1.49 # qr{ ([[:word:]]+) }x,
39 root 1.42 qr{ ([^[:space:]]+) }x,
40    
41 root 1.24 # common types of "parentheses"
42 root 1.50 qr{ (?<![^[:space:]]) [`'] ([^`']+) [`'] (?![^[:space:]]) }x,
43 root 1.48 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x,
44     qr{ (?<![^[:space:]]) “ ([^“”]+) ” (?![^[:space:]]) }x,
45 root 1.43
46 root 1.47 qr{ (?<![^[:space:]]) (' [^[:space:]] [^']* ') }x,
47 root 1.43 qr{ (' [^']* [^[:space:]] ') (?![^[:space:]]) }x,
48 root 1.52 qr{ (?<![^[:space:]]) (` [^[:space:]] [^']* ') }x,
49     qr{ (` [^']* [^[:space:]] ') (?![^[:space:]]) }x,
50 root 1.47 qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x,
51 root 1.42 qr{ (" [^"]* [^[:space:]] ") (?![^[:space:]]) }x,
52 root 1.43
53 root 1.48 qr{ \{ ([^\{\}]+) \} }x,
54     qr{ \( ([^\(\)]+) \) }x,
55     qr{ \[ ([^\[\]]+) \] }x,
56     qr{ \< ([^\<\>]+) \> }x,
57 root 1.14
58 root 1.20 # urls, just a heuristic
59     qr{(
60 root 1.40 (?:https?://|ftp://|news://|mailto:|file://|\bwww\.)[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~#]+
61     [ab-zA-Z0-9\-\@;\/?:&=%\$_+*()~] # exclude some trailing characters (heuristic)
62 root 1.20 )}x,
63    
64 root 1.17 # shell-like argument quoting, basically always matches
65 root 1.34 qr{\G [\ \t|&;<>()]* (
66 root 1.9 (?:
67 root 1.11 [^\\"'\ \t|&;<>()]+
68 root 1.9 | \\.
69 root 1.13 | " (?: [^\\"]+ | \\. )* "
70 root 1.9 | ' [^']* '
71     )+
72 root 1.14 )}x,
73 root 1.8 );
74    
75 root 1.16 # "correct obvious? crap"-patterns
76 root 1.15 my @simplify_patterns = (
77     qr{^"([^\\"'\ \t|&;<>()*?]+)"$}, # "simple" => simple
78 root 1.16 qr{^(.*)[,\-]$}, # strip off trailing , and -
79 root 1.15 );
80 root 1.14
81 root 1.6 sub on_sel_extend {
82 root 1.21 my ($self, $time) = @_;
83 root 1.8
84 root 1.37 $self->{enabled}
85     or return;
86    
87 root 1.8 my ($row, $col) = $self->selection_mark;
88     my $line = $self->line ($row);
89     my $text = $line->t;
90 root 1.20 my $markofs = $line->offset_of ($row, $col);
91     my $curlen = $line->offset_of ($self->selection_end)
92     - $line->offset_of ($self->selection_beg);
93    
94     my @matches;
95 root 1.8
96 root 1.32 if ($markofs < $line->l) {
97     study $text; # _really_ helps, too :)
98    
99     for my $regex (@mark_patterns, @{ $self->{patterns} }) {
100     while ($text =~ /$regex/g) {
101     if ($-[1] <= $markofs and $markofs <= $+[1]) {
102     my $ofs = $-[1];
103     my $match = $1;
104    
105     for my $regex (@simplify_patterns) {
106     if ($match =~ $regex) {
107     $match = $1;
108     $ofs += $-[1];
109     }
110 root 1.15 }
111 root 1.32
112     push @matches, [$ofs, length $match];
113 root 1.15 }
114 root 1.8 }
115     }
116     }
117    
118 root 1.21 # whole line
119     push @matches, [0, ($line->end - $line->beg + 1) * $self->ncol];
120    
121 root 1.20 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) {
122     my ($ofs, $len) = @$_;
123    
124     next if $len <= $curlen;
125    
126     $self->selection_beg ($line->coord_of ($ofs));
127     $self->selection_end ($line->coord_of ($ofs + $len));
128     return 1;
129     }
130    
131 root 1.21 ()
132 root 1.5 }