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/cvs/rxvt-unicode/src/perl/selection
Revision: 1.49
Committed: Mon Nov 19 15:52:13 2007 UTC (16 years, 6 months ago) by root
Branch: MAIN
CVS Tags: rel-8_5a, rel-8_9, rel-8_8, rel-8_6, rel-8_7
Changes since 1.48: +1 -1 lines
Log Message:
*** empty log message ***

File Contents

# User Rev Content
1 root 1.4 #! perl
2    
3 root 1.36 sub on_user_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 root 1.35 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 root 1.23 for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) {
21 root 1.31 $res = $self->locale_decode ($res);
22     utf8::encode $res;
23 root 1.23 push @{ $self->{patterns} }, qr/$res/;
24     }
25    
26 root 1.37 $self->{enabled} = 1;
27    
28     push @{ $self->{term}{option_popup_hook} }, sub {
29     ("new selection" => $self->{enabled}, sub { $self->{enabled} = shift })
30     };
31    
32 root 1.23 ()
33     }
34    
35 root 1.34 # "find interesting things"-patterns
36 root 1.15 my @mark_patterns = (
37 root 1.49 # qr{ ([[:word:]]+) }x,
38 root 1.42 qr{ ([^[:space:]]+) }x,
39    
40 root 1.24 # common types of "parentheses"
41 root 1.43 qr{ (?<![^[:space:]]) ` ([^‘’]+) ` (?![^[:space:]]) }x,
42     qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x,
43     qr{ (?<![^[:space:]]) ` ([^`']+) ' (?![^[:space:]]) }x,
44    
45 root 1.48 qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x,
46     qr{ (?<![^[:space:]]) “ ([^“”]+) ” (?![^[:space:]]) }x,
47 root 1.43
48 root 1.47 qr{ (?<![^[:space:]]) (' [^[:space:]] [^']* ') }x,
49 root 1.43 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 root 1.41 # convert markofs from character to UTF-8 offset space
98 root 1.32 {
99     my $prefix = substr $text, 0, $markofs;
100     utf8::encode $prefix;
101     $markofs = length $prefix;
102     }
103    
104     # not doing matches in unicode mode helps speed
105     # enourmously here. working in utf-8 should be
106     # equivalent due to the magic of utf-8 encoding.
107     utf8::encode $text;
108     study $text; # _really_ helps, too :)
109    
110     for my $regex (@mark_patterns, @{ $self->{patterns} }) {
111     while ($text =~ /$regex/g) {
112     if ($-[1] <= $markofs and $markofs <= $+[1]) {
113     my $ofs = $-[1];
114     my $match = $1;
115    
116     for my $regex (@simplify_patterns) {
117     if ($match =~ $regex) {
118     $match = $1;
119     $ofs += $-[1];
120     }
121 root 1.15 }
122 root 1.32
123     push @matches, [$ofs, length $match];
124 root 1.15 }
125 root 1.8 }
126     }
127     }
128    
129 root 1.21 # whole line
130     push @matches, [0, ($line->end - $line->beg + 1) * $self->ncol];
131    
132 root 1.20 for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) {
133     my ($ofs, $len) = @$_;
134    
135     next if $len <= $curlen;
136    
137 root 1.32 # convert back from UTF-8 offset space to character space
138     {
139 root 1.33 my $length = substr "$text ", $ofs, $len;
140 root 1.32 utf8::decode $length;
141     $len = length $length;
142     }
143     {
144     my $prefix = substr $text, 0, $ofs;
145     utf8::decode $prefix;
146     $ofs = length $prefix;
147     }
148    
149 root 1.20 $self->selection_beg ($line->coord_of ($ofs));
150     $self->selection_end ($line->coord_of ($ofs + $len));
151     return 1;
152     }
153    
154 root 1.21 ()
155 root 1.5 }