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#! perl |
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|
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sub on_user_command { |
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my ($self, $cmd) = @_; |
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|
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$cmd eq "selection:rot13" |
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and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection); |
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|
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() |
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} |
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|
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sub on_init { |
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my ($self) = @_; |
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|
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if (defined (my $res = $self->resource ("cutchars"))) { |
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$res = $self->locale_decode ($res); |
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push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x; |
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} |
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|
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for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) { |
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$res = $self->locale_decode ($res); |
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utf8::encode $res; |
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push @{ $self->{patterns} }, qr/$res/; |
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} |
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|
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$self->{enabled} = 1; |
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|
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push @{ $self->{term}{option_popup_hook} }, sub { |
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("new selection" => $self->{enabled}, sub { $self->{enabled} = shift }) |
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}; |
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|
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() |
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} |
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|
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# "find interesting things"-patterns |
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my @mark_patterns = ( |
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qr{ ([[:word:]]+) }x, |
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qr{ ([^[:space:]]+) }x, |
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|
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# common types of "parentheses" |
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qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space:]]) }x, |
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qr{ (?<![^[:space:]]) ` ([^`']+) ' (?![^[:space:]]) }x, |
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qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x, |
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qr{ (" [^"]* [^[:space:]] ") (?![^[:space:]]) }x, |
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qr{ \< ([^<>[:space:]]+) \> }x, |
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qr{ \{ ([^{}[:space:]]+) \} }x, |
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qr{ \[ ([^{}[:space:]]+) \] }x, |
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qr{ \( ([^()[:space:]]+) \) }x, |
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|
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# urls, just a heuristic |
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qr{( |
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(?:https?://|ftp://|news://|mailto:|file://|\bwww\.)[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~#]+ |
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[ab-zA-Z0-9\-\@;\/?:&=%\$_+*()~] # exclude some trailing characters (heuristic) |
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)}x, |
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|
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# shell-like argument quoting, basically always matches |
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qr{\G [\ \t|&;<>()]* ( |
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(?: |
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[^\\"'\ \t|&;<>()]+ |
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| \\. |
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| " (?: [^\\"]+ | \\. )* " |
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| ' [^']* ' |
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)+ |
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)}x, |
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); |
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|
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# "correct obvious? crap"-patterns |
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my @simplify_patterns = ( |
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qr{^"([^\\"'\ \t|&;<>()*?]+)"$}, # "simple" => simple |
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qr{^(.*)[,\-]$}, # strip off trailing , and - |
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); |
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|
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sub on_sel_extend { |
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my ($self, $time) = @_; |
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|
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$self->{enabled} |
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or return; |
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|
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my ($row, $col) = $self->selection_mark; |
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my $line = $self->line ($row); |
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my $text = $line->t; |
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my $markofs = $line->offset_of ($row, $col); |
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my $curlen = $line->offset_of ($self->selection_end) |
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- $line->offset_of ($self->selection_beg); |
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|
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my @matches; |
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|
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if ($markofs < $line->l) { |
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# convert markofs from character to UTF-8 offset space |
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{ |
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my $prefix = substr $text, 0, $markofs; |
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utf8::encode $prefix; |
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$markofs = length $prefix; |
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} |
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|
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# not doing matches in unicode mode helps speed |
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# enourmously here. working in utf-8 should be |
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# equivalent due to the magic of utf-8 encoding. |
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utf8::encode $text; |
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study $text; # _really_ helps, too :) |
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|
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for my $regex (@mark_patterns, @{ $self->{patterns} }) { |
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while ($text =~ /$regex/g) { |
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if ($-[1] <= $markofs and $markofs <= $+[1]) { |
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my $ofs = $-[1]; |
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my $match = $1; |
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|
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for my $regex (@simplify_patterns) { |
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if ($match =~ $regex) { |
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$match = $1; |
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$ofs += $-[1]; |
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} |
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} |
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|
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push @matches, [$ofs, length $match]; |
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} |
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} |
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} |
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} |
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|
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# whole line |
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push @matches, [0, ($line->end - $line->beg + 1) * $self->ncol]; |
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|
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for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) { |
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my ($ofs, $len) = @$_; |
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|
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next if $len <= $curlen; |
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|
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# convert back from UTF-8 offset space to character space |
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{ |
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my $length = substr "$text ", $ofs, $len; |
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utf8::decode $length; |
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$len = length $length; |
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} |
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{ |
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my $prefix = substr $text, 0, $ofs; |
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utf8::decode $prefix; |
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$ofs = length $prefix; |
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} |
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|
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$self->selection_beg ($line->coord_of ($ofs)); |
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$self->selection_end ($line->coord_of ($ofs + $len)); |
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return 1; |
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} |
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|
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() |
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} |
