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1 | package cf::pod; |
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2 | |
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3 | use Pod::POM; |
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4 | |
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5 | our $indent; |
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6 | our $level; |
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7 | our @result; |
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8 | |
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9 | package cf::pod::AsParagraphs; |
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10 | |
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11 | use strict; |
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12 | |
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13 | use base "Pod::POM::View"; |
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14 | |
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15 | sub aspod($) { |
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16 | local $_ = $_[0]; |
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17 | |
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18 | s/</E<lt>/g; |
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19 | s/>/E<gt>/g; |
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20 | |
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21 | $_ |
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22 | } |
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23 | |
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24 | sub flatten($) { |
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25 | local $_ = $_[0]; |
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26 | |
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27 | s/^\s+//; |
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28 | s/\s+$//; |
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29 | s/\s+/ /g; |
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30 | |
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31 | $_ |
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32 | } |
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33 | |
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34 | *view_seq_file = sub { "B<$_[1]>" }; |
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35 | *view_seq_code = sub { "B<$_[1]>" }; |
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36 | *view_seq_bold = sub { "B<$_[1]>" }; |
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37 | *view_seq_italic = sub { "I<$_[1]>" }; |
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38 | *view_seq_zero = sub { "Z<>" }; |
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39 | *view_seq_space = sub { my $text = $_[1]; $text =~ s/ /\xa0/g; $text }; |
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40 | *view_seq_index = sub { push @{ $result[-1]{index} }, $_[1]; "" }; |
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41 | |
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42 | sub view_seq_text { |
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43 | my $text = $_[1]; |
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44 | $text =~ s/\s+/ /g; |
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45 | aspod $text |
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46 | } |
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47 | |
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48 | sub view_seq_link { |
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49 | my (undef, $link) = @_; |
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50 | |
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51 | my $text = $link =~ s/^(.*)\|// ? $1 : $link; |
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52 | |
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53 | if ($link =~ /http:/) { |
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54 | "U<" . (asxml $link) . ">" |
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55 | } else { |
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56 | () |
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57 | } |
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58 | } |
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59 | |
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60 | sub view_item { |
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61 | push @result, { |
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62 | type => "item", |
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63 | indent => $indent * 8, |
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64 | level => $level, |
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65 | }; |
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66 | my $title = $_[1]->title->present ($_[0]); |
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67 | $result[-1]{markup} = $title if length $title; |
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68 | $title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title; |
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69 | local $level = $level + 1; |
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70 | $_[1]->content->present ($_[0]); |
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71 | () |
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72 | } |
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73 | |
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74 | sub view_verbatim { |
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75 | push @result, { |
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76 | type => "verbatim", |
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77 | indent => $indent * 16, |
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78 | level => $level, |
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79 | markup => $_[1], |
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80 | }; |
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81 | () |
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82 | } |
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83 | |
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84 | sub view_textblock { |
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85 | push @result, { |
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86 | indent => $indent * 16, |
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87 | level => $level, |
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88 | markup => flatten $_[1], |
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89 | }; |
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90 | () |
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91 | } |
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92 | |
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93 | sub view_head1 { |
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94 | push @result, { |
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95 | type => "head1", |
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96 | indent => $indent * 16, |
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97 | level => $level, |
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98 | }; |
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99 | my $title = $_[1]->title->present ($_[0]); |
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100 | $result[-1]{markup} = $title if length $title; |
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101 | $title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title; |
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102 | local $level = $level + 1; |
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103 | $_[1]->content->present ($_[0]); |
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104 | () |
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105 | }; |
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106 | |
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107 | sub view_head2 { |
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108 | push @result, { |
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109 | type => "head2", |
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110 | indent => $indent * 16, |
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111 | level => $level, |
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112 | }; |
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113 | my $title = $_[1]->title->present ($_[0]); |
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114 | $result[-1]{markup} = $title if length $title; |
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115 | $title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title; |
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116 | local $level = $level + 1; |
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117 | $_[1]->content->present ($_[0]); |
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118 | () |
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119 | }; |
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120 | |
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121 | sub view_head3 { |
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122 | push @result, { |
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123 | type => "head3", |
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124 | indent => $indent * 16, |
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125 | level => $level, |
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126 | }; |
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127 | my $title = $_[1]->title->present ($_[0]); |
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128 | $result[-1]{markup} = $title if length $title; |
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129 | $title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title; |
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130 | local $level = $level + 1; |
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131 | $_[1]->content->present ($_[0]); |
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132 | () |
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133 | }; |
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134 | |
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135 | sub view_over { |
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136 | local $indent = $indent + $_[1]->indent; |
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137 | push @result, { indent => $indent }; |
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138 | $_[1]->content->present ($_[0]); |
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139 | () |
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140 | } |
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141 | |
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142 | sub view_for { |
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143 | if ($_[1]->format eq "image") { |
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144 | # push @result, { |
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145 | # indent => $indent * 16, |
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146 | # level => $level, |
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147 | # markup => (::special image => "pod/" . $_->text), |
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148 | # }; |
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149 | } |
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150 | () |
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151 | } |
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152 | |
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153 | sub view_begin { |
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154 | () |
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155 | } |
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156 | |
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157 | sub view { |
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158 | my ($self, $type, $item) = @_; |
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159 | |
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160 | $item->content->present ($self); |
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161 | } |
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162 | |
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163 | ############################################################################# |
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164 | |
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165 | package cf::pod; |
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166 | |
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167 | sub pom_as_paragraphs($) { |
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168 | my ($pom) = @_; |
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169 | |
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170 | # we suckers use global variables, unfortunately. |
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171 | my $guard = cf::lock_acquire "cf::pod::as_paragraphs"; |
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172 | |
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173 | local $indent = 0; |
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174 | local $level = 1; |
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175 | local @result = ( { } ); |
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176 | |
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177 | $pom->present ("cf::pod::AsParagraphs"); |
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178 | |
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179 | [grep $_->{index} || exists $_->{markup}, @result] |
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180 | } |
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181 | |
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182 | sub load_pod($) { |
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183 | my ($path) = @_; |
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184 | |
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185 | Coro::Storable::thaw cf::cache "cf::pod::as_paragraphs/$path" => [$path], |
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186 | 4 => sub { |
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187 | my ($src) = @_; |
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188 | |
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189 | cf::fork_call { |
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190 | my $pod = $src->[0]; |
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191 | utf8::decode $pod; |
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192 | Coro::Storable::blocking_nfreeze pom_as_paragraphs +(Pod::POM->new->parse_text ($pod)) |
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193 | } |
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194 | }; |
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195 | } |
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196 | |
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197 | # format as cfpod-style text |
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198 | sub as_cfpod($) { |
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199 | my ($pars) = @_; |
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200 | |
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201 | my $res; |
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202 | |
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203 | for my $par (@$pars) { |
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204 | if ($par->{type} =~ /^head\d+$/) { |
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205 | $res .= "B<$par->{markup}>\n\n"; |
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206 | } elsif ($par->{type} eq "verbatim") { |
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207 | $res .= "\n$par->{markup}\n\n"; |
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208 | } elsif ($par->{type} eq "item") { |
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209 | $res .= "\n* I<$par->{markup}>\n\n"; |
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210 | } else { |
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211 | $res .= "$par->{markup}\n\n"; |
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212 | } |
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213 | } |
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214 | |
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215 | $res |
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216 | } |
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217 | |
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218 | 1; |
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219 | |
