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wakaba |
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=head1 NAME |
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Message::Markup::SuikaWikiConfig20::Parser: manakai --- SuikaWikiConfig/2.0 parser |
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=head1 DESCRIPTION |
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SuikaWikiConfig/2.0 is a general configuration description format. |
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This module can be used to parse such configuration and to |
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generate node tree for it. |
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This module is part of manakai. |
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=cut |
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package Message::Markup::SuikaWikiConfig20::Parser; |
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use strict; |
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our $VERSION = do{my @r=(q$Revision: 1.3 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r}; |
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require Message::Markup::SuikaWikiConfig20::Node; |
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=head1 METHODS |
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=over 4 |
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=item $x = Message::Markup::SuikaWikiConfig20::Parser->new (%options) |
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Returns new instance of parser |
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=cut |
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sub new ($;%) { |
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my $class = shift; |
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my $self = bless {@_}, $class; |
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$self; |
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} |
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sub parse_text ($$) { |
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my ($self, $s) = @_; |
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my $root = SuikaWiki::Markup::SuikaWikiConfig20->new |
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(type => '#document'); |
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my $current = $root; |
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my $current_element = $root; |
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my $is_new_element = 0; |
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my $is_list_element = 0; |
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for my $line (split /\x0D?\x0A/, $s) { |
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if ($line =~ /^([^#\s].*):\s*([^\s:][^:]*)?$/) { |
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my ($name, $val) = ($1, $2); |
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substr ($name, 0, 1) = '' if substr ($name, 0, 1) eq '\\'; |
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substr ($val, 0, 1) = '' if substr ($val, 0, 1) eq '\\'; |
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if (substr ($name, -6) eq '[list]') { |
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substr ($name, -6) = ''; |
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$val = length ($val) ? [$val] : []; |
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$is_list_element = 1; |
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} else { |
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$is_list_element = 0; |
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} |
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$current_element = $root->append_new_node (type => '#element', |
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local_name => $name, |
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value => $val); |
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if (defined $2) { ## Foo: bar |
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$current = $root; |
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$current_element = $root; |
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} else { ## Foo:\n bar\n baz |
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$current = $current_element; |
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$is_new_element = 1; |
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} |
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} elsif ($line =~ /^\s+(\@+)(.*):\s*([^\s:][^:]*)?$/) { |
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my ($nest, $name, $val) = (length $1, $2, $3); |
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substr ($name, 0, 1) = '' if substr ($name, 0, 1) eq '\\'; |
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substr ($val, 0, 1) = '' if substr ($val, 0, 1) eq '\\'; |
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if (substr ($name, -6) eq '[list]') { |
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substr ($name, -6) = ''; |
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$val = length ($val) ? [$val] : []; |
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$is_list_element = 1; |
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} else { |
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$is_list_element = 0; |
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} |
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my $ce; |
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if (length ($name)) { |
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while ($current_element->flag ('p__nest_level') >= $nest) { |
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$current_element = $current_element->parent_node; |
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} |
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$ce = $current_element->append_new_node (type => '#element', |
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local_name => $name, |
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value => $val); |
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$ce->flag (p__nest_level |
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=> $current_element->flag ('p__nest_level') + 1); |
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unless (defined $3) { ## @foo: \nbar |
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$current_element = $ce; |
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$current = $ce; |
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$is_new_element = 1; |
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} |
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} else { |
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while ($current_element->flag ('p__nest_level') > $nest - 1) { |
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$current_element = $current_element->parent_node; |
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} |
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$current_element->append_text ($val); |
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$current = $current_element; |
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unless (defined $3) { ## @@: \nbar |
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$is_new_element = 1; |
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} |
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} |
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} elsif ($line =~ /^\s+([^\s#].*)$/) { |
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my $val = $1; |
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substr ($val, 0, 1) = '' if substr ($val, 0, 1) eq '\\'; |
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if ($is_new_element || $is_list_element) { |
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$current_element->append_text ($val); |
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$is_new_element = 0; |
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} else { |
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$current_element->append_text ("\x0A" . $val); |
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} |
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} elsif ($line =~ /^\s+$/) { |
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# skip |
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} elsif ($line =~ /^\s*\#(.*)$/) { |
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if ($current->node_type eq '#comment') { |
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$current->append_text ("\x0A" . $1); |
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} else { |
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$current = $root->append_new_node (type => '#comment', value => $1); |
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} |
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} else { |
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$current = $root; |
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#print STDERR qq(**$line**\n); |
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} |
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} |
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$root; |
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} |
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sub flag ($$;$) { |
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my ($self, $name, $value) = @_; |
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if (defined $value) { |
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$self->{flag}->{$name} = $value; |
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} |
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$self->{flag}->{$name}; |
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} |
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sub option ($$;$) { |
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my ($self, $name, $value) = @_; |
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if (defined $value) { |
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$self->{option}->{$name} = $value; |
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} |
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$self->{option}->{$name}; |
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} |
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=back |
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=head1 EXAMPLE |
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use Message::Markup::SuikaWikiConfig20::Parser; |
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my $parser = new Message::Markup::SuikaWikiConfig20::Parser; |
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my $conf = $parser->parse_text ($config); |
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print $conf->get_attribute ('Some Configuration Item'); |
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=head1 SEE ALSO |
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Message::Markup::SuikaWikiConfig20::Node, |
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SuikaWiki <http://suika.fam.cx/~wakaba/-temp/wiki/wiki?SuikaWiki>, |
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<http://suika.fam.cx/~wakaba/-temp/wiki/wiki?SuikaWikiConfig/2.0> |
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=head1 HISTORY |
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This module was part of SuikaWiki 2, with the name of |
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C<SuikaWiki::Markup::SuikaWikiConfig20::Parser>. |
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=head1 LICENSE |
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Copyright 2003 Wakaba <w@suika.fam.cx> |
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This program is free software; you can redistribute it and/or |
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modify it under the same terms as Perl itself. |
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=cut |
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1; # $Date: 2003/11/15 07:14:35 $ |
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