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/cvs/rxvt-unicode/src/perl/selection-autotransform
Revision: 1.15
Committed: Thu Oct 30 09:44:58 2014 UTC (9 years, 6 months ago) by sf-exg
Branch: MAIN
CVS Tags: rxvt-unicode-rel-9_29, rxvt-unicode-rel-9_26, rxvt-unicode-rel-9_25, rxvt-unicode-rel-9_22, rxvt-unicode-rel-9_21, rxvt-unicode-rel-9_30, HEAD
Changes since 1.14: +2 -2 lines
Log Message:
Destroy overlay timer on terminal destruction in selection-{autotransform,popup}.

File Contents

# User Rev Content
1 root 1.1 #! perl
2    
3 root 1.14 #:META:RESOURCE:%.:string:autotransform expression
4 root 1.9
5 root 1.11 =head1 NAME
6    
7 root 1.13 selection-autotransform - automatically transform select text
8 root 1.11
9 root 1.12 =head1 DESCRIPTION
10 root 1.11
11     This selection allows you to do automatic transforms on a selection
12     whenever a selection is made.
13    
14     It works by specifying perl snippets (most useful is a single C<s///>
15     operator) that modify C<$_> as resources:
16    
17     URxvt.selection-autotransform.0: transform
18     URxvt.selection-autotransform.1: transform
19     ...
20    
21     For example, the following will transform selections of the form
22     C<filename:number>, often seen in compiler messages, into C<vi +$filename
23     $word>:
24    
25     URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
26    
27     And this example matches the same,but replaces it with vi-commands you can
28     paste directly into your (vi :) editor:
29    
30     URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
31    
32     Of course, this can be modified to suit your needs and your editor :)
33    
34     To expand the example above to typical perl error messages ("XXX at
35     FILENAME line YYY."), you need a slightly more elaborate solution:
36    
37     URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
38     URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
39    
40     The first line tells the selection code to treat the unchanging part of
41     every error message as a selection pattern, and the second line transforms
42     the message into vi commands to load the file.
43    
44     =cut
45    
46 root 1.1 sub msg {
47     my ($self, $msg) = @_;
48    
49     my $overlay = $self->overlay (0, 0, $self->strwidth ($msg), 1);
50     $overlay->set (0, 0, $msg);
51 sf-exg 1.15 $self->{timer} = urxvt::timer->new->after (2)->cb (sub {
52     delete $self->{timer};
53 root 1.1 undef $overlay;
54     });
55     }
56    
57     sub on_init {
58     my ($self) = @_;
59    
60 root 1.10 for (my $idx = 0; defined (my $res = $self->x_resource ("%.$idx")); $idx++) {
61 root 1.4 $res = $self->locale_decode ($res);
62 root 1.1 my $transform = eval "sub { $res }";
63    
64     if ($transform) {
65     push @{ $self->{transforms} }, $transform;
66     } else {
67     warn "$res: $@";
68     }
69     }
70    
71 root 1.7 $self->{enabled} = 1;
72    
73     push @{ $self->{term}{option_popup_hook} }, sub {
74     ("autotransform" => $self->{enabled}, sub { $self->{enabled} = shift })
75     };
76    
77 root 1.1 ()
78     }
79    
80     sub on_sel_grab {
81     my ($self) = @_;
82    
83 root 1.7 $self->{enabled}
84     or return;
85    
86 root 1.1 my $text = $self->selection;
87     local $_ = $text;
88    
89     for my $transform (@{ $self->{transforms} }) {
90     $transform->();
91     if ($text ne $_) {
92     $self->selection ($_);
93     s/[\x00-\x1f\x80-\x9f]/ยท/g;
94     $self->msg ($self->special_encode ("auto-transformed to $_"));
95 root 1.2 last;
96 root 1.1 }
97     }
98 sf-exg 1.8
99 root 1.1 ()
100     }
101