| 1 | package Padre::Wx::Dialog::RegexEditor; |
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| 2 | |
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| 3 | # The Regex Editor for Padre |
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| 4 | |
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| 5 | use 5.008; |
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| 6 | use strict; |
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| 7 | use warnings; |
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| 8 | use Padre::Wx (); |
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| 9 | use Padre::Wx::Icon (); |
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| 10 | use Padre::Wx::Role::MainChild (); |
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| 11 | |
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| 12 | our $VERSION = '0.56'; |
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| 13 | our @ISA = qw{ |
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| 14 | Padre::Wx::Role::MainChild |
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| 15 | Wx::Dialog |
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| 16 | }; |
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| 17 | |
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| 18 | |
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| 19 | ###################################################################### |
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| 20 | # Constructor |
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| 21 | |
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| 22 | sub new { |
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| 23 | my $class = shift; |
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| 24 | my $parent = shift; |
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| 25 | |
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| 26 | # Create the basic object |
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| 27 | my $self = $class->SUPER::new( |
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| 28 | $parent, |
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| 29 | -1, |
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| 30 | Wx::gettext('Regex Editor'), |
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| 31 | Wx::wxDefaultPosition, |
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| 32 | Wx::wxDefaultSize, |
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| 33 | Wx::wxDEFAULT_FRAME_STYLE, |
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| 34 | ); |
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| 35 | |
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| 36 | # Set basic dialog properties |
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| 37 | $self->SetIcon(Padre::Wx::Icon::PADRE); |
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| 38 | $self->SetMinSize( [ 350, 550 ] ); |
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| 39 | |
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| 40 | # create sizer that will host all controls |
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| 41 | my $sizer = Wx::BoxSizer->new(Wx::wxHORIZONTAL); |
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| 42 | |
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| 43 | # Create the controls |
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| 44 | $self->_create_controls($sizer); |
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| 45 | |
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| 46 | # Bind the control events |
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| 47 | $self->_bind_events; |
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| 48 | |
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| 49 | # Tune the size and position it appears |
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| 50 | $self->SetSizer($sizer); |
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| 51 | $self->Fit; |
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| 52 | $self->CentreOnParent; |
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| 53 | |
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| 54 | return $self; |
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| 55 | } |
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| 56 | |
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| 57 | |
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| 58 | # |
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| 59 | # A private method that returns a hash of regex groups along with their meaning |
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| 60 | # |
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| 61 | sub _regex_groups { |
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| 62 | my $self = shift; |
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| 63 | |
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| 64 | return ( |
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| 65 | '01' => { |
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| 66 | label => Wx::gettext('Character Classes'), |
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| 67 | value => { |
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| 68 | '.' => Wx::gettext('Any character except a newline'), |
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| 69 | '\d' => Wx::gettext('Any decimal digit'), |
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| 70 | '\D' => Wx::gettext('Any non-digit'), |
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| 71 | '\s' => Wx::gettext('Any whitespace character'), |
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| 72 | '\S' => Wx::gettext('Any non-whitespace character'), |
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| 73 | '\w' => Wx::gettext('Any word character'), |
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| 74 | '\W' => Wx::gettext('Any non-word character'), |
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| 75 | } |
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| 76 | }, |
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| 77 | '02' => { |
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| 78 | label => Wx::gettext('Quantifiers'), |
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| 79 | value => { |
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| 80 | '*' => Wx::gettext('Zero or more of the preceding block'), |
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| 81 | '+' => Wx::gettext('One or more of the preceding block'), |
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| 82 | '?' => Wx::gettext('Zero or one of the preceding block'), |
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| 83 | '{m}' => Wx::gettext('Exactly m of the preceding block'), |
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| 84 | '{m,n}' => Wx::gettext('m to n of the preceding block'), |
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| 85 | } |
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| 86 | }, |
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| 87 | '03' => { |
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| 88 | label => Wx::gettext('Miscellaneous'), |
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| 89 | value => { |
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| 90 | '|' => Wx::gettext('Alternation'), |
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| 91 | '[ ]' => Wx::gettext('Character set'), |
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| 92 | '^' => Wx::gettext('Beginning of line'), |
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| 93 | '$' => Wx::gettext('End of line'), |
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| 94 | '\b' => Wx::gettext('A word boundary'), |
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| 95 | '\B' => Wx::gettext('Not a word boundary'), |
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| 96 | } |
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| 97 | }, |
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| 98 | '04' => { |
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| 99 | label => Wx::gettext('Grouping constructs'), |
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| 100 | value => { |
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| 101 | '( )' => Wx::gettext('A group'), |
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| 102 | '(?: )' => Wx::gettext('Non-capturing group'), |
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| 103 | '(?= )' => Wx::gettext('Positive lookahead assertion'), |
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| 104 | '(?! )' => Wx::gettext('Negative lookahead assertion'), |
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| 105 | '\n' => Wx::gettext('Backreference to the nth group'), |
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| 106 | } |
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| 107 | } |
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| 108 | ); |
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| 109 | } |
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| 110 | |
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| 111 | sub _create_controls { |
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| 112 | my ( $self, $sizer ) = @_; |
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| 113 | |
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| 114 | # Dialog Controls |
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| 115 | |
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| 116 | my $regex_label = Wx::StaticText->new( $self, -1, Wx::gettext('&Regular Expression:') ); |
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| 117 | |
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| 118 | $self->{regex} = Wx::TextCtrl->new( |
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| 119 | $self, -1, '', Wx::wxDefaultPosition, Wx::wxDefaultSize, |
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| 120 | Wx::wxTE_MULTILINE | Wx::wxNO_FULL_REPAINT_ON_RESIZE |
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| 121 | ); |
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| 122 | |
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| 123 | my $substitute_label = Wx::StaticText->new( $self, -1, Wx::gettext('&Substitute text with:') ); |
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| 124 | $self->{substitute} = Wx::TextCtrl->new( |
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| 125 | $self, -1, '', Wx::wxDefaultPosition, Wx::wxDefaultSize, |
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| 126 | Wx::wxTE_MULTILINE | Wx::wxNO_FULL_REPAINT_ON_RESIZE |
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| 127 | ); |
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| 128 | |
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| 129 | my $original_label = Wx::StaticText->new( $self, -1, Wx::gettext('&Original text:') ); |
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| 130 | $self->{original_text} = Wx::TextCtrl->new( |
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| 131 | $self, -1, '', Wx::wxDefaultPosition, Wx::wxDefaultSize, |
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| 132 | Wx::wxTE_MULTILINE | Wx::wxNO_FULL_REPAINT_ON_RESIZE |
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| 133 | ); |
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| 134 | |
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| 135 | my $matched_label = Wx::StaticText->new( $self, -1, Wx::gettext('&Matched text:') ); |
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| 136 | $self->{matched_text} = Wx::TextCtrl->new( |
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| 137 | $self, -1, '', Wx::wxDefaultPosition, Wx::wxDefaultSize, |
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| 138 | Wx::wxTE_MULTILINE | Wx::wxNO_FULL_REPAINT_ON_RESIZE |
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| 139 | ); |
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| 140 | |
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| 141 | # Modifiers |
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| 142 | my %m = $self->_modifiers(); |
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| 143 | foreach my $name ( keys %m ) { |
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| 144 | $self->{$name} = Wx::CheckBox->new( |
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| 145 | $self, |
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| 146 | -1, |
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| 147 | $m{$name}{name}, |
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| 148 | ); |
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| 149 | } |
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| 150 | |
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| 151 | $self->{menu} = Wx::Menu->new; |
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| 152 | my %regex_groups = $self->_regex_groups; |
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| 153 | |
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| 154 | foreach my $code (keys %regex_groups) { |
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| 155 | my %sub_group = %{$regex_groups{$code}}; |
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| 156 | $self->{$code} = Wx::Button->new( |
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| 157 | $self, -1, $sub_group{label}, |
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| 158 | ); |
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| 159 | # $self->{menu}->Append( -1, $subgroup{label} ); |
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| 160 | # $self->{menu}->AppendSeparator(); |
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| 161 | # my $subgroup_value = $subgroup{value}; |
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| 162 | # foreach my $name (keys %subgroup_value) { |
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| 163 | # my $menu_item = $self->{menu}->Append( -1, $subgroup_value{$name} ); |
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| 164 | # $self->{menu}->AppendSeparator(); |
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| 165 | # } |
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| 166 | } |
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| 167 | # Wx::Event::EVT_MENU( |
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| 168 | # $self, |
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| 169 | # $self->{menu}, |
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| 170 | # sub { |
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| 171 | # }, |
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| 172 | # ); |
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| 173 | |
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| 174 | # Matching radio button |
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| 175 | $self->{matching} = Wx::RadioButton->new( |
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| 176 | $self, -1, Wx::gettext('Matching'), |
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| 177 | ); |
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| 178 | |
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| 179 | # Substitution radio button |
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| 180 | $self->{substituting} = Wx::RadioButton->new( |
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| 181 | $self, -1, Wx::gettext('Substituting'), |
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| 182 | ); |
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| 183 | |
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| 184 | # Close button |
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| 185 | $self->{close_button} = Wx::Button->new( |
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| 186 | $self, Wx::wxID_CANCEL, Wx::gettext('&Close'), |
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| 187 | ); |
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| 188 | |
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| 189 | # Dialog Layout |
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| 190 | |
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| 191 | my $modifiers = Wx::BoxSizer->new(Wx::wxHORIZONTAL); |
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| 192 | $modifiers->AddStretchSpacer; |
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| 193 | $modifiers->Add( $self->{ignore_case}, 0, Wx::wxALL, 1 ); |
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| 194 | $modifiers->Add( $self->{single_line}, 0, Wx::wxALL, 1 ); |
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| 195 | $modifiers->Add( $self->{multi_line}, 0, Wx::wxALL, 1 ); |
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| 196 | $modifiers->Add( $self->{extended}, 0, Wx::wxALL, 1 ); |
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| 197 | |
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| 198 | my $operation = Wx::BoxSizer->new(Wx::wxHORIZONTAL); |
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| 199 | $operation->AddStretchSpacer; |
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| 200 | $operation->Add( $self->{matching}, 0, Wx::wxALL, 1 ); |
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| 201 | $operation->Add( $self->{substituting}, 0, Wx::wxALL, 1 ); |
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| 202 | $operation->AddStretchSpacer; |
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| 203 | |
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| 204 | my $regex = Wx::BoxSizer->new(Wx::wxVERTICAL); |
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| 205 | $regex->Add( |
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| 206 | $self->{regex}, |
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| 207 | 1, |
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| 208 | Wx::wxALL | Wx::wxALIGN_CENTER_HORIZONTAL | Wx::wxEXPAND, |
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| 209 | 1 |
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| 210 | ); |
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| 211 | |
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| 212 | my $regex_groups = Wx::BoxSizer->new(Wx::wxVERTICAL); |
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| 213 | foreach my $code (keys %regex_groups) { |
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| 214 | $regex_groups->Add( $self->{$code}, 0, Wx::wxEXPAND | Wx::wxALIGN_CENTER_HORIZONTAL, 1 ); |
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| 215 | } |
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| 216 | |
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| 217 | my $combined = Wx::BoxSizer->new(Wx::wxHORIZONTAL); |
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| 218 | $combined->Add( $regex, 2, Wx::wxALL | Wx::wxEXPAND, 0 ); |
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| 219 | $combined->Add( $regex_groups, 0, Wx::wxALL | Wx::wxEXPAND, 0 ); |
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| 220 | |
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| 221 | # Vertical layout of the left hand side |
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| 222 | my $left = Wx::BoxSizer->new(Wx::wxVERTICAL); |
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| 223 | $left->Add( $operation, 0, Wx::wxALL | Wx::wxEXPAND, 2 ); |
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| 224 | $left->Add( $modifiers, 0, Wx::wxALL | Wx::wxEXPAND, 2 ); |
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| 225 | $left->AddSpacer(5); |
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| 226 | $left->Add( $regex_label, 0, Wx::wxALL | Wx::wxEXPAND, 1 ); |
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| 227 | $left->Add( $combined, 0, Wx::wxALL | Wx::wxEXPAND, 2 ); |
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| 228 | |
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| 229 | $left->Add( $substitute_label, 0, Wx::wxALL | Wx::wxEXPAND, 1 ); |
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| 230 | $left->Add( |
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| 231 | $self->{substitute}, |
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| 232 | 1, |
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| 233 | Wx::wxALL | Wx::wxALIGN_CENTER_HORIZONTAL | Wx::wxEXPAND, |
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| 234 | 1 |
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| 235 | ); |
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| 236 | |
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| 237 | |
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| 238 | $left->Add( $original_label, 0, Wx::wxALL | Wx::wxEXPAND, 1 ); |
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| 239 | $left->Add( |
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| 240 | $self->{original_text}, |
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| 241 | 1, |
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| 242 | Wx::wxALL | Wx::wxALIGN_CENTER_HORIZONTAL | Wx::wxEXPAND, |
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| 243 | 1 |
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| 244 | ); |
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| 245 | $left->Add( $matched_label, 0, Wx::wxALL | Wx::wxEXPAND, 1 ); |
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| 246 | $left->Add( |
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| 247 | $self->{matched_text}, |
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| 248 | 1, |
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| 249 | Wx::wxALL | Wx::wxALIGN_CENTER_HORIZONTAL | Wx::wxEXPAND, |
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| 250 | 1 |
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| 251 | ); |
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| 252 | $left->AddSpacer(5); |
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| 253 | $left->Add( $self->{close_button}, 0, Wx::wxALIGN_CENTER_HORIZONTAL, 1 ); |
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| 254 | |
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| 255 | # Main sizer |
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| 256 | $sizer->Add( $left, 1, Wx::wxALL | Wx::wxEXPAND, 5 ); |
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| 257 | } |
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| 258 | |
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| 259 | sub _bind_events { |
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| 260 | my $self = shift; |
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| 261 | |
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| 262 | Wx::Event::EVT_TEXT( |
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| 263 | $self, |
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| 264 | $self->{regex}, |
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| 265 | sub { $_[0]->run; }, |
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| 266 | ); |
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| 267 | Wx::Event::EVT_TEXT( |
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| 268 | $self, |
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| 269 | $self->{substitute}, |
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| 270 | sub { $_[0]->run; }, |
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| 271 | ); |
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| 272 | Wx::Event::EVT_TEXT( |
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| 273 | $self, |
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| 274 | $self->{original_text}, |
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| 275 | sub { $_[0]->run; }, |
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| 276 | ); |
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| 277 | |
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| 278 | # Modifiers |
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| 279 | my %m = $self->_modifiers(); |
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| 280 | foreach my $name ( keys %m ) { |
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| 281 | Wx::Event::EVT_CHECKBOX( |
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| 282 | $self, |
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| 283 | $self->{$name}, |
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| 284 | sub { |
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| 285 | $_[0]->box_clicked($name); |
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| 286 | }, |
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| 287 | ); |
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| 288 | } |
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| 289 | |
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| 290 | Wx::Event::EVT_RADIOBUTTON( |
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| 291 | $self, |
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| 292 | $self->{matching}, |
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| 293 | sub { $_[0]->run; }, |
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| 294 | ); |
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| 295 | Wx::Event::EVT_RADIOBUTTON( |
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| 296 | $self, |
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| 297 | $self->{substituting}, |
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| 298 | sub { $_[0]->run; }, |
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| 299 | ); |
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| 300 | } |
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| 301 | |
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| 302 | |
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| 303 | # |
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| 304 | # A private method that returns a hash of regex modifiers |
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| 305 | # |
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| 306 | sub _modifiers { |
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| 307 | my $self = shift; |
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| 308 | return ( |
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| 309 | ignore_case => { mod => 'i', name => sprintf( Wx::gettext('Ignore case (%s)'), 'i' ) }, |
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| 310 | single_line => { mod => 's', name => sprintf( Wx::gettext('Single-line (%s)'), 's' ) }, |
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| 311 | multi_line => { mod => 'm', name => sprintf( Wx::gettext('Multi-line (%s)'), 'm' ) }, |
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| 312 | extended => { mod => 'x', name => sprintf( Wx::gettext('Extended (%s)'), 'x' ) }, |
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| 313 | ); |
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| 314 | } |
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| 315 | |
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| 316 | |
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| 317 | # -- public methods |
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| 318 | |
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| 319 | sub show { |
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| 320 | my $self = shift; |
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| 321 | |
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| 322 | $self->{regex}->AppendText("regex"); |
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| 323 | $self->{substitute}->AppendText("substitute"); |
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| 324 | $self->{original_text}->AppendText("Original text"); |
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| 325 | $self->{matching}->SetValue(1); |
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| 326 | |
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| 327 | $self->Show; |
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| 328 | } |
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| 329 | |
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| 330 | sub run { |
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| 331 | my $self = shift; |
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| 332 | |
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| 333 | my $regex = $self->{regex}->GetRange( 0, $self->{regex}->GetLastPosition ); |
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| 334 | my $original_text = $self->{original_text}->GetRange( 0, $self->{original_text}->GetLastPosition ); |
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| 335 | my $substitute = $self->{substitute}->GetRange( 0, $self->{substitute}->GetLastPosition ); |
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| 336 | |
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| 337 | |
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| 338 | my $start = ''; |
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| 339 | my $end = ''; |
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| 340 | my %m = $self->_modifiers(); |
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| 341 | foreach my $name ( keys %m ) { |
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| 342 | if ( $self->{$name}->IsChecked ) { |
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| 343 | $start .= $m{$name}{mod}; |
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| 344 | } else { |
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| 345 | $end .= $m{$name}{mod}; |
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| 346 | } |
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| 347 | } |
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| 348 | my $xism = "$start-$end"; |
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| 349 | |
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| 350 | $self->{matched_text}->Clear; |
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| 351 | |
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| 352 | if ( $self->{matching}->GetValue ) { |
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| 353 | my $match; |
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| 354 | eval { |
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| 355 | if ( $original_text =~ /(?$xism:$regex)/ ) |
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| 356 | { |
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| 357 | $match = substr( $original_text, $-[0], $+[0] - $-[0] ); |
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| 358 | } |
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| 359 | }; |
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| 360 | if ($@) { |
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| 361 | $self->{matched_text}->AppendText("Match failure in $regex: $@"); |
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| 362 | return; |
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| 363 | } |
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| 364 | |
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| 365 | if ( defined $match ) { |
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| 366 | $self->{matched_text}->AppendText("Matched '$match'"); |
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| 367 | } else { |
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| 368 | $self->{matched_text}->AppendText("No match"); |
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| 369 | } |
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| 370 | } else { |
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| 371 | $self->{matched_text}->AppendText("Substitute not yet implemented"); |
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| 372 | } |
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| 373 | |
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| 374 | return; |
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| 375 | } |
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| 376 | |
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| 377 | sub box_clicked { |
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| 378 | my $self = shift; |
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| 379 | $self->run(); |
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| 380 | return; |
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| 381 | } |
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| 382 | |
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| 383 | 1; |
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| 384 | |
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| 385 | __END__ |
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| 386 | |
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| 387 | =pod |
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| 388 | |
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| 389 | =head1 NAME |
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| 390 | |
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| 391 | Padre::Wx::Dialog::RegexEditor - dialog to make it easy to create a regular expression |
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| 392 | |
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| 393 | =head1 DESCRIPTION |
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| 394 | |
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| 395 | |
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| 396 | The C<Regex Editor> provides an interface to easily create regular |
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| 397 | expressions used in Perl. |
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| 398 | |
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| 399 | The user can insert a regular expression (the surrounding C</> characters are not |
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| 400 | needed) and a text. The C<Regex Editor> will automatically display the matching |
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| 401 | text in the bottom right window. |
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| 402 | |
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| 403 | |
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| 404 | At the top of the window the user can select any of the four |
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| 405 | regular expression modifiers: |
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| 406 | |
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| 407 | =over |
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| 408 | |
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| 409 | =item Ignore case (i) |
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| 410 | |
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| 411 | =item Single-line (s) |
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| 412 | |
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| 413 | =item Multi-line (m) |
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| 414 | |
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| 415 | =item Extended (x) |
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| 416 | |
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| 417 | =back |
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| 418 | |
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| 419 | =head1 TO DO |
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| 420 | |
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| 421 | Implement substitute as well |
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| 422 | |
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| 423 | Global match |
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| 424 | |
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| 425 | Allow the change/replacement of the // around the regular expression |
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| 426 | |
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| 427 | Highlight the match in the source text instead of in |
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| 428 | a separate window |
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| 429 | |
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| 430 | Display the captured groups in a tree hierarchy similar to Rx ? |
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| 431 | |
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| 432 | Group Span (character) Value |
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| 433 | Match 0 (Group 0) 4-7 the actual match |
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| 434 | |
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| 435 | Display the various Perl variable containing the relevant values |
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| 436 | e.g. the C<@-> and C<@+> arrays, the C<%+> hash |
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| 437 | C<$1>, C<$2>... |
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| 438 | |
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| 439 | point out what to use instead of C<$@> and C<$'> and C<$`> |
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| 440 | |
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| 441 | English explanation of the regular expression |
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| 442 | |
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| 443 | =head1 COPYRIGHT & LICENSE |
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| 444 | |
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| 445 | Copyright 2008-2010 The Padre development team as listed in Padre.pm. |
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| 446 | |
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| 447 | This program is free software; you can redistribute it and/or modify it |
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| 448 | under the same terms as Perl 5 itself. |
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| 449 | |
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| 450 | =cut |
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| 451 | |
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| 452 | # Copyright 2008-2010 The Padre development team as listed in Padre.pm. |
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| 453 | # LICENSE |
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| 454 | # This program is free software; you can redistribute it and/or |
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| 455 | # modify it under the same terms as Perl 5 itself. |
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