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Annotation of todotxt/Text-Todo/lib/Text/Todo/Entry.pm, Revision 1.10

1.1       andrew      1: package Text::Todo::Entry;
                      2:
1.10    ! andrew      3: # $RedRiver: Entry.pm,v 1.9 2010/01/08 17:41:56 andrew Exp $
1.1       andrew      4:
                      5: use warnings;
                      6: use strict;
                      7: use Carp;
                      8:
                      9: use Class::Std::Utils;
                     10: use List::Util qw/ first /;
                     11:
                     12: use version; our $VERSION = qv('0.0.1');
                     13:
                     14: {
                     15:     my %text_of;
                     16:
1.3       andrew     17:     my %tags_of;
1.1       andrew     18:     my %priority_of;
1.7       andrew     19:     my %completion_status_of;
1.1       andrew     20:
1.3       andrew     21:     my %tags = (
                     22:         context => q{@},
                     23:         project => q{+},
                     24:     );
                     25:
1.8       andrew     26:     # XXX Should the completion (x) be case sensitive?
                     27:     my $priority_completion_regex = qr/
                     28:         ^ \s*
                     29:         (?i:   (x)        \s+)?
                     30:         (?i:\( ([A-Z]) \) \s+)?
                     31:     /xms;
                     32:
1.4       andrew     33:     for my $tag ( keys %tags ) {
                     34:         ## no critic strict
                     35:         no strict 'refs';    # Violates use strict, but allows code generation
                     36:         ## use critic
                     37:
                     38:         *{ $tag . 's' } = sub {
                     39:             my ($self) = @_;
                     40:             return $self->_tags($tag);
                     41:         };
                     42:
                     43:         *{ 'in_' . $tag } = sub {
                     44:             my ( $self, $item ) = @_;
                     45:             return $self->_is_in( $tag . 's', $item );
                     46:         };
                     47:     }
                     48:
1.10    ! andrew     49:     sub replace { _update_entry(@_) }
1.8       andrew     50:     sub depri   { _set_priority( @_, '' ) }
1.10    ! andrew     51:     sub pri     { _set_priority(@_) }
1.8       andrew     52:
1.1       andrew     53:     sub new {
                     54:         my ( $class, $text ) = @_;
                     55:
                     56:         my $self = bless anon_scalar(), $class;
                     57:         my $ident = ident($self);
                     58:
                     59:         $self->_update_entry($text);
                     60:
                     61:         return $self;
                     62:     }
                     63:
                     64:     sub _update_entry {
                     65:         my ( $self, $text ) = @_;
                     66:         my $ident = ident($self);
                     67:
                     68:         $text = defined $text ? $text : q{};
                     69:
                     70:         $text_of{$ident} = $text;
                     71:
1.3       andrew     72:         foreach my $tag ( keys %tags ) {
                     73:             my $symbol = quotemeta $tags{$tag};
1.6       andrew     74:             $tags_of{$ident}{$tag} = { map { $_ => q{} }
                     75:                     $text =~ / (?:^|\s) $symbol  (\S+)/gxms };
1.3       andrew     76:         }
1.8       andrew     77:         ( $completion_status_of{$ident}, $priority_of{$ident} )
                     78:             = $text =~ / $priority_completion_regex /xms;
1.1       andrew     79:
                     80:         return 1;
                     81:     }
                     82:
1.3       andrew     83:     sub _tags {
                     84:         my ( $self, $tag ) = @_;
1.1       andrew     85:         my $ident = ident($self);
                     86:
1.3       andrew     87:         my @tags = sort keys %{ $tags_of{$ident}{$tag} };
                     88:         return wantarray ? @tags : \@tags;
1.1       andrew     89:     }
                     90:
1.3       andrew     91:     sub _is_in {
1.5       andrew     92:         my ( $self, $tags, $item ) = @_;
                     93:         return defined first { $_ eq $item } $self->$tags;
1.1       andrew     94:     }
                     95:
1.3       andrew     96:     sub text {
1.1       andrew     97:         my ($self) = @_;
                     98:         my $ident = ident($self);
                     99:
1.3       andrew    100:         return $text_of{$ident};
1.1       andrew    101:     }
                    102:
1.8       andrew    103:     sub _set_priority {
                    104:         my ( $self, $new_pri ) = @_;
                    105:         my $ident = ident($self);
                    106:
                    107:         if ( $new_pri !~ /^[a-zA-Z]?$/xms ) {
                    108:             croak "Invalid priority [$new_pri]";
                    109:         }
                    110:
                    111:         $priority_of{$ident} = $new_pri;
                    112:
                    113:         return $self->prepend();
                    114:     }
                    115:
1.1       andrew    116:     sub priority {
1.8       andrew    117:         my ( $self, $new_pri ) = @_;
1.1       andrew    118:         my $ident = ident($self);
                    119:
                    120:         return $priority_of{$ident};
                    121:     }
                    122:
                    123:     sub prepend {
                    124:         my ( $self, $addition ) = @_;
                    125:
                    126:         my $new = $self->text;
1.8       andrew    127:         my @new;
                    128:
                    129:         $new =~ s/$priority_completion_regex//xms;
1.1       andrew    130:
1.10    ! andrew    131:         if ( $self->done ) {
1.9       andrew    132:             push @new, $self->done;
1.1       andrew    133:         }
1.8       andrew    134:
                    135:         if ( $self->priority ) {
                    136:             push @new, '(' . $self->priority . ')';
                    137:         }
                    138:
                    139:         if ( defined $addition && length $addition ) {
                    140:             push @new, $addition;
1.1       andrew    141:         }
                    142:
1.8       andrew    143:         return $self->_update_entry( join q{ }, @new, $new );
1.1       andrew    144:     }
                    145:
                    146:     sub append {
                    147:         my ( $self, $addition ) = @_;
1.8       andrew    148:         return $self->_update_entry( join q{ }, $self->text, $addition );
1.1       andrew    149:     }
                    150:
1.9       andrew    151:     sub do {
1.7       andrew    152:         my ($self) = @_;
1.8       andrew    153:         my $ident = ident($self);
1.7       andrew    154:
1.10    ! andrew    155:         if ( $self->done ) {
1.7       andrew    156:             return 1;
                    157:         }
                    158:
1.8       andrew    159:         $completion_status_of{$ident} = 'x';
                    160:
                    161:         return $self->prepend();
1.7       andrew    162:     }
                    163:
1.9       andrew    164:     sub done {
                    165:         my ($self) = @_;
                    166:         my $ident = ident($self);
                    167:
                    168:         return $completion_status_of{$ident};
                    169:     }
                    170:
1.1       andrew    171: }
                    172: 1;    # Magic true value required at end of module
                    173: __END__
                    174:
                    175: =head1 NAME
                    176:
                    177: Text::Todo::Entry - [One line description of module's purpose here]
                    178:
                    179:
                    180: =head1 VERSION
                    181:
                    182: This document describes Text::Todo::Entry version 0.0.1
                    183:
                    184:
                    185: =head1 SYNOPSIS
                    186:
                    187:     use Text::Todo::Entry;
                    188:
                    189: =for author to fill in:
                    190:     Brief code example(s) here showing commonest usage(s).
                    191:     This section will be as far as many users bother reading
                    192:     so make it as educational and exeplary as possible.
                    193:
                    194:
                    195: =head1 DESCRIPTION
                    196:
                    197: =for author to fill in:
                    198:     Write a full description of the module and its features here.
                    199:     Use subsections (=head2, =head3) as appropriate.
                    200:
                    201:
                    202: =head1 INTERFACE
                    203:
                    204: =for author to fill in:
                    205:     Write a separate section listing the public components of the modules
                    206:     interface. These normally consist of either subroutines that may be
                    207:     exported, or methods that may be called on objects belonging to the
                    208:     classes provided by the module.
                    209:
                    210: =head2 new
                    211:
                    212: =head2 text
                    213:
                    214: =head2 priority
                    215:
                    216: =head2 contexts
                    217:
                    218: =head2 in_context
                    219:
                    220: =head2 projects
                    221:
                    222: =head2 in_project
                    223:
1.10    ! andrew    224: =head2 replace
1.1       andrew    225:
                    226: =head2 prepend
                    227:
                    228: =head2 append
1.7       andrew    229:
1.9       andrew    230: =head2 do
1.7       andrew    231:
1.9       andrew    232: =head2 done
1.1       andrew    233:
1.10    ! andrew    234: =head2 pri
        !           235:
        !           236: =head2 depri
1.1       andrew    237:
                    238: =head1 DIAGNOSTICS
                    239:
                    240: =for author to fill in:
                    241:     List every single error and warning message that the module can
                    242:     generate (even the ones that will "never happen"), with a full
                    243:     explanation of each problem, one or more likely causes, and any
                    244:     suggested remedies.
                    245:
                    246: =over
                    247:
                    248: =item C<< Error message here, perhaps with %s placeholders >>
                    249:
                    250: [Description of error here]
                    251:
                    252: =item C<< Another error message here >>
                    253:
                    254: [Description of error here]
                    255:
                    256: [Et cetera, et cetera]
                    257:
                    258: =back
                    259:
                    260:
                    261: =head1 CONFIGURATION AND ENVIRONMENT
                    262:
                    263: =for author to fill in:
                    264:     A full explanation of any configuration system(s) used by the
                    265:     module, including the names and locations of any configuration
                    266:     files, and the meaning of any environment variables or properties
                    267:     that can be set. These descriptions must also include details of any
                    268:     configuration language used.
                    269:
                    270: Text::Todo::Entry requires no configuration files or environment variables.
                    271:
                    272:
                    273: =head1 DEPENDENCIES
                    274:
                    275: =for author to fill in:
                    276:     A list of all the other modules that this module relies upon,
                    277:     including any restrictions on versions, and an indication whether
                    278:     the module is part of the standard Perl distribution, part of the
                    279:     module's distribution, or must be installed separately. ]
                    280:
                    281: None.
                    282:
                    283:
                    284: =head1 INCOMPATIBILITIES
                    285:
                    286: =for author to fill in:
                    287:     A list of any modules that this module cannot be used in conjunction
                    288:     with. This may be due to name conflicts in the interface, or
                    289:     competition for system or program resources, or due to internal
                    290:     limitations of Perl (for example, many modules that use source code
                    291:     filters are mutually incompatible).
                    292:
                    293: None reported.
                    294:
                    295:
                    296: =head1 BUGS AND LIMITATIONS
                    297:
                    298: =for author to fill in:
                    299:     A list of known problems with the module, together with some
                    300:     indication Whether they are likely to be fixed in an upcoming
                    301:     release. Also a list of restrictions on the features the module
                    302:     does provide: data types that cannot be handled, performance issues
                    303:     and the circumstances in which they may arise, practical
                    304:     limitations on the size of data sets, special cases that are not
                    305:     (yet) handled, etc.
                    306:
                    307: No bugs have been reported.
                    308:
                    309: Please report any bugs or feature requests to
                    310: C<bug-text-todo@rt.cpan.org>, or through the web interface at
                    311: L<http://rt.cpan.org>.
                    312:
                    313:
                    314: =head1 AUTHOR
                    315:
                    316: Andrew Fresh  C<< <andrew@cpan.org> >>
                    317:
                    318:
                    319: =head1 LICENSE AND COPYRIGHT
                    320:
                    321: Copyright (c) 2009, Andrew Fresh C<< <andrew@cpan.org> >>. All rights reserved.
                    322:
                    323: This module is free software; you can redistribute it and/or
                    324: modify it under the same terms as Perl itself. See L<perlartistic>.
                    325:
                    326:
                    327: =head1 DISCLAIMER OF WARRANTY
                    328:
                    329: BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
                    330: FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
                    331: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
                    332: PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
                    333: EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
                    334: WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
                    335: ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
                    336: YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
                    337: NECESSARY SERVICING, REPAIR, OR CORRECTION.
                    338:
                    339: IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
                    340: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
                    341: REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE
                    342: LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL,
                    343: OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
                    344: THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
                    345: RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
                    346: FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
                    347: SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
                    348: SUCH DAMAGES.

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