| 1 | #! perl |
1 | #! perl |
| 2 | |
2 | |
| 3 | sub on_keyboard_command { |
3 | sub on_user_command { |
| 4 | my ($self, $cmd) = @_; |
4 | my ($self, $cmd) = @_; |
| 5 | |
5 | |
| 6 | $cmd eq "selection:rot13" |
6 | $cmd eq "selection:rot13" |
| 7 | and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection); |
7 | and $self->selection (map { y/A-Za-z/N-ZA-Mn-za-m/; $_ } $self->selection); |
| 8 | |
8 | |
| 9 | () |
9 | () |
| 10 | } |
10 | } |
| 11 | |
11 | |
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12 | sub on_init { |
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13 | my ($self) = @_; |
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14 | |
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15 | if (defined (my $res = $self->resource ("cutchars"))) { |
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16 | $res = $self->locale_decode ($res); |
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17 | push @{ $self->{patterns} }, qr{\G [\Q$res\E[:space:]]* ([^\Q$res\E[:space:]]+) }x; |
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18 | } |
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19 | |
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20 | for (my $idx = 0; defined (my $res = $self->x_resource ("selection.pattern-$idx")); $idx++) { |
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21 | $res = $self->locale_decode ($res); |
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22 | utf8::encode $res; |
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23 | push @{ $self->{patterns} }, qr/$res/; |
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24 | } |
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25 | |
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26 | () |
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27 | } |
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28 | |
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29 | # "find interesting things"-patterns |
| 12 | my @patterns = ( |
30 | my @mark_patterns = ( |
| 13 | # urls |
31 | # common types of "parentheses" |
| 14 | qr{ ([a-z0-9.+\-]+://[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),]+) }x, |
32 | qr{ (?<![^[:space:]]) ‘ ([^‘’]+) ’ (?![^[:space]]) }x, |
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33 | qr{ (?<![^[:space:]]) ` ([^`']+) ' (?![^[:space]]) }x, |
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34 | qr{ (?<![^[:space:]]) (" [^[:space:]] [^"]* ") }x, |
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35 | qr{ (" [^"]* [^[:space:]] ") (?![^[:space]]) }x, |
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36 | qr{ \< ([^<>[:space:]]+) \> }x, |
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37 | qr{ \{ ([^{}[:space:]]+) \} }x, |
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38 | qr{ \[ ([^{}[:space:]]+) \] }x, |
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39 | qr{ \( ([^()[:space:]]+) \) }x, |
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40 | |
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41 | # urls, just a heuristic |
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42 | qr{( |
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43 | (?:https?|ftp|news|mailto|file)://[ab-zA-Z0-9\-\@;\/?:&=%\$_.+!*\x27(),~]+ |
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44 | [ab-zA-Z0-9\-\@;\/?:&=%\$_+!*\x27()~] # exclude some trailing characters (heuristic) |
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45 | )}x, |
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46 | |
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47 | # shell-like argument quoting, basically always matches |
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48 | qr{\G [\ \t|&;<>()]* ( |
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49 | (?: |
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50 | [^\\"'\ \t|&;<>()]+ |
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51 | | \\. |
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52 | | " (?: [^\\"]+ | \\. )* " |
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53 | | ' [^']* ' |
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54 | )+ |
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55 | )}x, |
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56 | ); |
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57 | |
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58 | # "correct obvious? crap"-patterns |
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59 | my @simplify_patterns = ( |
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60 | qr{^"([^\\"'\ \t|&;<>()*?]+)"$}, # "simple" => simple |
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61 | qr{^(.*)[,\-]$}, # strip off trailing , and - |
| 15 | ); |
62 | ); |
| 16 | |
63 | |
| 17 | sub on_sel_extend { |
64 | sub on_sel_extend { |
| 18 | my ($self) = @_; |
65 | my ($self, $time) = @_; |
| 19 | |
66 | |
| 20 | my ($row, $col) = $self->selection_mark; |
67 | my ($row, $col) = $self->selection_mark; |
| 21 | my $line = $self->line ($row); |
68 | my $line = $self->line ($row); |
| 22 | my $offset = $line->offset_of ($row, $col); |
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| 23 | my $text = $line->t; |
69 | my $text = $line->t; |
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70 | my $markofs = $line->offset_of ($row, $col); |
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71 | my $curlen = $line->offset_of ($self->selection_end) |
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72 | - $line->offset_of ($self->selection_beg); |
| 24 | |
73 | |
| 25 | for my $regex (@patterns) { |
74 | my @matches; |
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75 | |
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76 | if ($markofs < $line->l) { |
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77 | # convert markofs form character to UTF-8 offset space |
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78 | { |
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79 | my $prefix = substr $text, 0, $markofs; |
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80 | utf8::encode $prefix; |
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81 | $markofs = length $prefix; |
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82 | } |
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83 | |
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84 | # not doing matches in unicode mode helps speed |
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85 | # enourmously here. working in utf-8 should be |
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86 | # equivalent due to the magic of utf-8 encoding. |
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87 | utf8::encode $text; |
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88 | study $text; # _really_ helps, too :) |
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89 | |
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90 | for my $regex (@mark_patterns, @{ $self->{patterns} }) { |
| 26 | while ($text =~ /$regex/g) { |
91 | while ($text =~ /$regex/g) { |
| 27 | if ($-[0] <= $offset and $offset <= $+[0]) { |
92 | if ($-[1] <= $markofs and $markofs <= $+[1]) { |
| 28 | $self->selection_beg ($line->coord_of ($-[0])); |
93 | my $ofs = $-[1]; |
| 29 | $self->selection_end ($line->coord_of ($+[0])); |
94 | my $match = $1; |
| 30 | return 1; |
95 | |
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96 | for my $regex (@simplify_patterns) { |
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97 | if ($match =~ $regex) { |
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98 | $match = $1; |
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99 | $ofs += $-[1]; |
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100 | } |
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101 | } |
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102 | |
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103 | push @matches, [$ofs, length $match]; |
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104 | } |
| 31 | } |
105 | } |
| 32 | } |
106 | } |
| 33 | } |
107 | } |
| 34 | |
108 | |
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109 | # whole line |
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110 | push @matches, [0, ($line->end - $line->beg + 1) * $self->ncol]; |
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111 | |
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112 | for (sort { $a->[1] <=> $b->[1] or $b->[0] <=> $a->[0] } @matches) { |
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113 | my ($ofs, $len) = @$_; |
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114 | |
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115 | next if $len <= $curlen; |
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116 | |
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117 | # convert back from UTF-8 offset space to character space |
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118 | { |
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119 | my $length = substr "$text ", $ofs, $len; |
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120 | utf8::decode $length; |
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121 | $len = length $length; |
|
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122 | } |
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123 | { |
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124 | my $prefix = substr $text, 0, $ofs; |
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125 | utf8::decode $prefix; |
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126 | $ofs = length $prefix; |
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127 | } |
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128 | |
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129 | $self->selection_beg ($line->coord_of ($ofs)); |
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130 | $self->selection_end ($line->coord_of ($ofs + $len)); |
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131 | return 1; |
|
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132 | } |
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133 | |
| 35 | () |
134 | () |
| 36 | } |
135 | } |
