| @@ -0,0 +1,229 @@ |
| 1 | +module Docs |
| 2 | + class Threejs |
| 3 | + class CleanHtmlFilter < Filter |
| 4 | + PATTERNS = { |
| 5 | + method_this: /\[method:this\s+([^\]]+)\]\s*\((.*?)\)/, |
| 6 | + method_return: /\[method:([^\s\]]+)\s+([^\]]+)\]\s*\((.*?)\)/, |
| 7 | + method_no_params: /\[method:([^\s\]]+)\s+([^\]]+)\](?!\()/, |
| 8 | + property: /\[property:([^\]]+?)\s+([^\]]+?)\]/, |
| 9 | + example_link: /\[example:([^\s\]]+)\s+([^\]]+)\]/, |
| 10 | + external_link_text: /\[link:([^\s\]]+)\s+([^\]]+)\]/, |
| 11 | + external_link: /\[link:([^\]]+)\]/, |
| 12 | + page_link_text: /\[page:([^\]]+?)\s+([^\]]+?)\]/, |
| 13 | + page_link: /\[page:([^\]]+?)\]/, |
| 14 | + inline_code: /`([^`]+)`/, |
| 15 | + name_placeholder: /\[name\]/, |
| 16 | + constructor_param: /\[param:([^\]]+?)\s+([^\]]+?)\]/ |
| 17 | + }.freeze |
| 18 | + |
| 19 | + def call |
| 20 | + remove_unnecessary_elements |
| 21 | + wrap_code_blocks |
| 22 | + process_sections |
| 23 | + format_links |
| 24 | + add_section_structure |
| 25 | + format_notes |
| 26 | + add_heading_attributes |
| 27 | + doc |
| 28 | + end |
| 29 | + |
| 30 | + private |
| 31 | + |
| 32 | + def remove_unnecessary_elements |
| 33 | + css('head, script, style').remove |
| 34 | + end |
| 35 | + |
| 36 | + def wrap_code_blocks |
| 37 | + css('code').each do |node| |
| 38 | + next if node.parent.name == 'pre' |
| 39 | + node.wrap('<pre>') |
| 40 | + node.parent['data-language'] = 'javascript' |
| 41 | + end |
| 42 | + end |
| 43 | + |
| 44 | + def process_sections |
| 45 | + # Handle source links |
| 46 | + css('h2').each do |node| |
| 47 | + next unless node.content.strip == 'Source' |
| 48 | + node.next_element.remove |
| 49 | + node.remove |
| 50 | + end |
| 51 | + |
| 52 | + # Handle method signatures and properties |
| 53 | + css('h3').each do |node| |
| 54 | + content = node.inner_html |
| 55 | + content = handle_method_signatures(content) |
| 56 | + content = handle_properties(content) |
| 57 | + node.inner_html = content |
| 58 | + end |
| 59 | + |
| 60 | + # Handle name placeholders and constructor params |
| 61 | + css('h1, h3').each do |node| |
| 62 | + content = node.inner_html |
| 63 | + content = handle_name_placeholders(content) |
| 64 | + content = format_constructor_params(content) |
| 65 | + node.inner_html = content |
| 66 | + end |
| 67 | + end |
| 68 | + |
| 69 | + def handle_method_signatures(content) |
| 70 | + content |
| 71 | + .gsub(PATTERNS[:method_this]) { format_method_signature('this', $1, $2) } |
| 72 | + .gsub(PATTERNS[:method_return]) do |match| |
| 73 | + next if $2.start_with?('this') |
| 74 | + format_method_signature($1, $2, $3, true) |
| 75 | + end |
| 76 | + .gsub(PATTERNS[:method_no_params]) { format_method_signature($1, $2, nil, true) } |
| 77 | + end |
| 78 | + |
| 79 | + def format_method_signature(type_or_this, name, params_str, with_return = false) |
| 80 | + params = if params_str |
| 81 | + params_str.split(',').map { |param| format_parameter(param.strip) }.join("<span class='sig-paren'>, </span>") |
| 82 | + end |
| 83 | + |
| 84 | + html = "<dt class='sig sig-object js' id='#{name}'>" |
| 85 | + if type_or_this == 'this' |
| 86 | + html << "<span class='property'><span class='pre'>this</span></span>." |
| 87 | + end |
| 88 | + html << "<span class='sig-name descname'>#{name}</span>" \ |
| 89 | + "<span class='sig-paren'>(</span>" \ |
| 90 | + "#{params}" \ |
| 91 | + "<span class='sig-paren'>)</span>" |
| 92 | + if with_return |
| 93 | + html << "<span class='sig-returns'><span class='sig-colon'>:</span> " \ |
| 94 | + "<span class='sig-type'>#{type_or_this}</span></span>" |
| 95 | + end |
| 96 | + html << "</dt>" |
| 97 | + end |
| 98 | + |
| 99 | + def format_parameter(param) |
| 100 | + if param.include?(' ') |
| 101 | + type, name = param.split(' ', 2).map(&:strip) |
| 102 | + "<span class='sig-param'><span class='sig-type'>#{type}</span> <span class='sig-name'>#{name}</span></span>" |
| 103 | + else |
| 104 | + "<span class='sig-param'>#{param}</span>" |
| 105 | + end |
| 106 | + end |
| 107 | + |
| 108 | + def handle_properties(content) |
| 109 | + content.gsub(PATTERNS[:property]) do |match| |
| 110 | + type, name = $1, $2 |
| 111 | + "<dt class='sig sig-object js'>" \ |
| 112 | + "<span class='sig-name descname'>#{name}</span>" \ |
| 113 | + "<span class='sig-colon'>:</span> " \ |
| 114 | + "<span class='sig-type'>#{type}</span></dt>" |
| 115 | + end |
| 116 | + end |
| 117 | + |
| 118 | + def handle_name_placeholders(content) |
| 119 | + content.gsub(PATTERNS[:name_placeholder]) do |
| 120 | + name = slug.split('/').last.gsub('.html', '') |
| 121 | + "<span class='descname'>#{name}</span>" |
| 122 | + end |
| 123 | + end |
| 124 | + |
| 125 | + def format_constructor_params(content) |
| 126 | + content.gsub(PATTERNS[:constructor_param]) do |match| |
| 127 | + type, name = $1, $2 |
| 128 | + "<span class='sig-param'><span class='sig-type'>#{type}</span> <code class='sig-name'>#{name}</code></span>" |
| 129 | + end |
| 130 | + end |
| 131 | + |
| 132 | + def format_links |
| 133 | + css('*').each do |node| |
| 134 | + next if node.text? |
| 135 | + |
| 136 | + content = node.inner_html |
| 137 | + .gsub(PATTERNS[:example_link]) { create_external_link("https://threejs.org/examples/##{$1}", $2) } |
| 138 | + .gsub(PATTERNS[:external_link_text]) { create_external_link($1, $2) } |
| 139 | + .gsub(PATTERNS[:external_link]) { create_external_link($1, $1) } |
| 140 | + .gsub(PATTERNS[:page_link_text]) { create_internal_link($1, $2) } |
| 141 | + .gsub(PATTERNS[:page_link]) { create_internal_link($1, $1) } |
| 142 | + |
| 143 | + node.inner_html = content |
| 144 | + end |
| 145 | + |
| 146 | + normalize_href_attributes |
| 147 | + end |
| 148 | + |
| 149 | + def create_external_link(url, text) |
| 150 | + %Q(<a class='reference external' href='#{url}'>#{text}</a>) |
| 151 | + end |
| 152 | + |
| 153 | + def create_internal_link(path, text) |
| 154 | + %Q(<a class='reference internal' href='#{path.downcase}'><code class='xref js js-#{path.downcase}'>#{text}</code></a>) |
| 155 | + end |
| 156 | + |
| 157 | + def normalize_href_attributes |
| 158 | + css('a[href]').each do |link| |
| 159 | + next if link['href'].start_with?('http') |
| 160 | + link['href'] = link['href'].remove('../').downcase.sub(/\.html$/, '') |
| 161 | + link['class'] = 'reference internal' |
| 162 | + end |
| 163 | + end |
| 164 | + |
| 165 | + def add_section_structure |
| 166 | + css('h2').each do |node| |
| 167 | + node['class'] = 'section-title' |
| 168 | + section = node.next_element |
| 169 | + next unless section |
| 170 | + |
| 171 | + wrapper = doc.document.create_element('div') |
| 172 | + wrapper['class'] = 'section' |
| 173 | + node.after(wrapper) |
| 174 | + wrapper.add_child(node) |
| 175 | + |
| 176 | + current = section |
| 177 | + while current && current.name != 'h2' |
| 178 | + next_el = current.next |
| 179 | + wrapper.add_child(current) |
| 180 | + current = next_el |
| 181 | + end |
| 182 | + end |
| 183 | + |
| 184 | + css('p.desc').each { |node| node['class'] = 'section-desc' } |
| 185 | + end |
| 186 | + |
| 187 | + def format_notes |
| 188 | + css('p').each do |node| |
| 189 | + next unless node.content.start_with?('Note:') |
| 190 | + |
| 191 | + wrapper = doc.document.create_element('div') |
| 192 | + wrapper['class'] = 'admonition note' |
| 193 | + |
| 194 | + title = doc.document.create_element('p') |
| 195 | + title['class'] = 'first admonition-title' |
| 196 | + title.content = 'Note' |
| 197 | + |
| 198 | + content = doc.document.create_element('p') |
| 199 | + content['class'] = 'last' |
| 200 | + content.inner_html = node.inner_html.sub('Note:', '').strip |
| 201 | + |
| 202 | + wrapper.add_child(title) |
| 203 | + wrapper.add_child(content) |
| 204 | + node.replace(wrapper) |
| 205 | + end |
| 206 | + end |
| 207 | + |
| 208 | + def add_heading_attributes |
| 209 | + css('h1, h2, h3, h4').each do |node| |
| 210 | + node['id'] ||= node.content.strip.downcase.gsub(/[^\w]+/, '-') |
| 211 | + existing_class = node['class'].to_s |
| 212 | + node['class'] = "#{existing_class} section-header" |
| 213 | + end |
| 214 | + |
| 215 | + format_inline_code |
| 216 | + end |
| 217 | + |
| 218 | + def format_inline_code |
| 219 | + selectors = ['p', 'li', 'dt', 'dd', '.property-type'].join(', ') |
| 220 | + css(selectors).each do |node| |
| 221 | + next if node.at_css('pre') |
| 222 | + node.inner_html = node.inner_html.gsub(PATTERNS[:inline_code]) do |match| |
| 223 | + "<code class='docutils literal notranslate'><span class='pre'>#{$1}</span></code>" |
| 224 | + end |
| 225 | + end |
| 226 | + end |
| 227 | + end |
| 228 | + end |
| 229 | +end |