| … | |
… | |
| 20 | |
20 | |
| 21 | =cut |
21 | =cut |
| 22 | |
22 | |
| 23 | package XML::DB; |
23 | package XML::DB; |
| 24 | |
24 | |
| 25 | sub dk($) { |
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| 26 | my $x = unpack "H*", $_[0]; |
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| 27 | $x =~ y/a-z/A-Z/; |
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| 28 | $x; |
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| 29 | } |
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| 30 | |
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| 31 | use XML::Parser; |
25 | use XML::Parser; |
| 32 | use PApp::SQL; |
26 | use PApp::SQL; |
| 33 | |
27 | |
| 34 | #require Exporter; |
28 | #require Exporter; |
| 35 | BEGIN { |
29 | BEGIN { |
| … | |
… | |
| 43 | sub new { |
37 | sub new { |
| 44 | my $class = shift; |
38 | my $class = shift; |
| 45 | bless { @_ }, $class; |
39 | bless { @_ }, $class; |
| 46 | } |
40 | } |
| 47 | |
41 | |
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42 | sub seq { |
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43 | sql_insertid sql_exec "update $_[0]_seq set n = last_insert_id(n + 1)"; |
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44 | } |
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45 | |
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46 | sub name_id { |
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47 | # not threadsafe |
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48 | sql_ufetch $_[0]{dbh}, "select i from name where n = ? and v = ?", "$_[1]", $_[2] |
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49 | or sql_insertid sql_exec $_[0]{dbh}, "insert into name values (NULL, ?, ?)", "$_[1]", $_[2]; |
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50 | |
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51 | } |
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52 | |
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53 | sub new_value { |
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54 | sql_insertid sql_exec $_[0]{dbh}, "insert into value values (NULL, ?)", $_[1]; |
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55 | } |
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56 | |
| 48 | sub new_xml_insert_parser { |
57 | sub new_xml_insert_parser { |
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58 | my $self = shift; |
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59 | my $dbh = $self->{dbh}; |
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60 | |
| 49 | my $did = 55; |
61 | my $did = 55; |
| 50 | my $n = 1; |
62 | my $n = 1; |
| 51 | |
63 | |
| 52 | my @children = ([]); |
64 | my @l; |
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65 | my @attr; |
| 53 | |
66 | |
| 54 | new XML::Parser |
67 | new XML::Parser |
| 55 | NameSpaces => 1, |
68 | Namespaces => 1, |
| 56 | NoExpand => 1, |
69 | NoExpand => 1, |
| 57 | Handlers => { |
70 | Handlers => { |
| 58 | Char => sub { |
71 | Char => sub { |
| 59 | push @{$children[-1]}, ['pcdata', $_[1]]; |
72 | sql_exec $dbh, "insert into node values (?, ?, ?, 'pcdata', ?)", |
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73 | $did, $n+1, $n+2, $self->new_value($_[1]); |
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74 | $n += 2; |
| 60 | }, |
75 | }, |
| 61 | Start => sub { |
76 | Start => sub { |
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77 | my ($parser, $element, @attrs) = @_; |
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78 | push @l, ++$n; |
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79 | push @attr, \@attrs; |
| 62 | }, |
80 | }, |
| 63 | End => sub { |
81 | End => sub { |
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82 | my ($parser, $element) = @_; |
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83 | my $attr = pop @attr; |
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84 | my $l = pop @l; |
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85 | sql_exec $dbh, "insert into node values (?, ?, ?, 'element', ?)", |
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86 | $did, $l, ++$n, $self->name_id($parser->namespace($element), $element); |
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87 | |
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88 | for (my $i = 0; $i < @$attr; $i += 2) { |
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89 | sql_exec $dbh, "insert into attr values (?, ?, ?, ?)", |
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90 | $did, $l, $self->name_id($parser->namespace($attr->[$i]), $attr->[$i]), |
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91 | $self->new_value($attr->[$i+1]); |
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92 | } |
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93 | }, |
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94 | Final => sub { |
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95 | sql_exec $dbh, "insert into node values (?, ?, ?, 'root', 0)", |
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96 | $did, 1, ++$n; |
| 64 | }, |
97 | }, |
| 65 | }, |
98 | }, |
| 66 | @_, |
99 | @_, |
| 67 | ; |
100 | ; |
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101 | } |
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102 | |
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103 | sub get_fragment { |
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104 | my ($self, $did, $ol) = @_; |
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105 | |
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106 | $ol ||= 1; |
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107 | |
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108 | my $or = sql_fetch $self->{dbh}, "select r from node where did = ? and l = ?", $did, $ol; |
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109 | my $st = sql_exec $self->{dbh}, \my($l, $r, $t, $c), |
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110 | "select l, r, t, c from node where did = ? and l > ? and r < ? order by l", |
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111 | $did, $ol, $or; |
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112 | |
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113 | my $ot; |
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114 | my @stack; |
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115 | my $doc = ""; |
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116 | my %ns; |
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117 | my $nso; |
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118 | my $nsp = "a"; |
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119 | |
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120 | my $expand_name = sub { |
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121 | $ns{$_[0]} ||= $nsp++; |
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122 | }; |
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123 | |
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124 | while ($st->fetch) { |
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125 | if ($l > $or) { |
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126 | ($ol, $or, $oc) = @{pop @stack}; |
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127 | |
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128 | $doc .= "</$oc>"; |
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129 | } |
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130 | |
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131 | if ($t eq "element") { |
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132 | my ($ns, $name) = $expand_name->(sql_ufetch $self->{dbh}, "select ns, v from name where i = ?", $c); |
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133 | push @stack, [$ol, $or, $ns]; |
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134 | ($ol, $or) = ($l, $r); |
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135 | |
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136 | $doc .= "<$ns"; |
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137 | |
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138 | my $st = sql_exec $self->{dbh}, "select name.n, , v from |
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139 | } elsif ($t eq "pcdata") { |
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140 | $c = sql_ufetch $self->{dbh}, "select v from value where i = ?", $c; |
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141 | |
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142 | $doc .= "$c"; |
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143 | |
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144 | } elsif ($t eq "entity") { |
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145 | } elsif ($t eq "pi") { |
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146 | } elsif ($t eq "doctype") { |
|
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147 | } else { |
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148 | die "FATAL: database corrupt, unexpected nodetype '$t'"; |
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149 | } |
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150 | } |
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151 | |
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152 | $doc; |
| 68 | } |
153 | } |
| 69 | |
154 | |
| 70 | 1; |
155 | 1; |
| 71 | |
156 | |
| 72 | |
157 | |
