@see Hpricot @private
# File lib/haml/html.rb, line 250 250: def to_haml(tabs, options) 251: return "" if converted_to_haml 252: if name == "script" && 253: (attr_hash['type'].nil? || attr_hash['type'] == "text/javascript") && 254: (attr_hash.keys - ['type']).empty? 255: return to_haml_filter(:javascript, tabs, options) 256: elsif name == "style" && 257: (attr_hash['type'].nil? || attr_hash['type'] == "text/css") && 258: (attr_hash.keys - ['type']).empty? 259: return to_haml_filter(:css, tabs, options) 260: end 261: 262: output = tabulate(tabs) 263: if options[:erb] && name[0...5] == 'haml:' 264: case name[5..1] 265: when "loud" 266: lines = CGI.unescapeHTML(inner_text).split("\n"). 267: map {|s| s.rstrip}.reject {|s| s.strip.empty?} 268: lines.first.gsub!(/^[ \t]*/, "= ") 269: 270: if lines.size > 1 # Multiline script block 271: # Normalize the indentation so that the last line is the base 272: indent_str = lines.last[/^[ \t]*/] 273: indent_re = /^[ \t]{0,#{indent_str.count(" ") + 8 * indent_str.count("\t")}}/ 274: lines.map! {|s| s.gsub!(indent_re, '')} 275: 276: # Add an extra " " to make it indented relative to "= " 277: lines[1..1].each {|s| s.gsub!(/^/, " ")} 278: 279: # Add | at the end, properly aligned 280: length = lines.map {|s| s.size}.max + 1 281: lines.map! {|s| "%#{-length}s|" % s} 282: 283: if next_sibling && next_sibling.is_a?(Hpricot::Elem) && next_sibling.name == "haml:loud" && 284: next_sibling.inner_text.split("\n").reject {|s| s.strip.empty?}.size > 1 285: lines << "-#" 286: end 287: end 288: return lines.map {|s| output + s + "\n"}.join 289: when "silent" 290: return CGI.unescapeHTML(inner_text).split("\n").map do |line| 291: next "" if line.strip.empty? 292: "#{output}- #{line.strip}\n" 293: end.join 294: when "block" 295: return render_children("", tabs, options) 296: end 297: end 298: 299: if self.next && self.next.text? && self.next.content =~ /\A[^\s]/ 300: if self.previous.nil? || self.previous.text? && 301: (self.previous.content =~ /[^\s]\Z/ || 302: self.previous.content =~ /\A\s*\Z/ && self.previous.previous.nil?) 303: nuke_outer_whitespace = true 304: else 305: output << "= succeed #{self.next.content.slice!(/\A[^\s]+/).dump} do\n" 306: tabs += 1 307: output << tabulate(tabs) 308: end 309: end 310: 311: output << "%#{name}" unless name == 'div' && 312: (static_id?(options) || 313: static_classname?(options) && 314: attr_hash['class'].split(' ').any?(&method(:haml_css_attr?))) 315: 316: if attr_hash 317: if static_id?(options) 318: output << "##{attr_hash['id']}" 319: remove_attribute('id') 320: end 321: if static_classname?(options) 322: leftover = attr_hash['class'].split(' ').reject do |c| 323: next unless haml_css_attr?(c) 324: output << ".#{c}" 325: end 326: remove_attribute('class') 327: set_attribute('class', leftover.join(' ')) unless leftover.empty? 328: end 329: output << haml_attributes(options) if attr_hash.length > 0 330: end 331: 332: output << ">" if nuke_outer_whitespace 333: output << "/" if empty? && !etag 334: 335: if children && children.size == 1 336: child = children.first 337: if child.is_a?(::Hpricot::Text) 338: if !child.to_s.include?("\n") 339: text = child.to_haml(tabs + 1, options) 340: return output + " " + text.lstrip.gsub(/^\\/, '') unless text.chomp.include?("\n") 341: return output + "\n" + text 342: elsif ["pre", "textarea"].include?(name) || 343: (name == "code" && parent.is_a?(::Hpricot::Elem) && parent.name == "pre") 344: return output + "\n#{tabulate(tabs + 1)}:preserve\n" + 345: innerText.gsub(/^/, tabulate(tabs + 2)) 346: end 347: elsif child.is_a?(::Hpricot::Elem) && child.name == "haml:loud" 348: return output + child.to_haml(tabs + 1, options).lstrip 349: end 350: end 351: 352: render_children(output + "\n", tabs, options) 353: end
# File lib/haml/html.rb, line 400 400: def dynamic_attribute?(name, options) 401: options[:erb] and dynamic_attributes.key?(name) 402: end
# File lib/haml/html.rb, line 363 363: def dynamic_attributes 364: @dynamic_attributes ||= begin 365: Haml::Util.map_hash(attr_hash) do |name, value| 366: next if value.empty? 367: full_match = nil 368: ruby_value = value.gsub(%{<haml:loud>\s*(.+?)\s*</haml:loud>}) do 369: full_match = $`.empty? && $'.empty? 370: CGI.unescapeHTML(full_match ? $1: "\#{#{$1}}") 371: end 372: next if ruby_value == value 373: [name, full_match ? ruby_value : %("#{ruby_value}")] 374: end 375: end 376: end
Returns a string representation of an attributes hash that’s prettier than that produced by Hash#inspect
# File lib/haml/html.rb, line 418 418: def haml_attributes(options) 419: attrs = attr_hash.sort.map do |name, value| 420: value = dynamic_attribute?(name, options) ? dynamic_attributes[name] : value.inspect 421: name = name.index(/\W/) ? name.inspect : ":#{name}" 422: "#{name} => #{value}" 423: end 424: "{#{attrs.join(', ')}}" 425: end
# File lib/haml/html.rb, line 412 412: def haml_css_attr?(attr) 413: attr =~ /^[-:\w]+$/ 414: end
# File lib/haml/html.rb, line 357 357: def render_children(so_far, tabs, options) 358: (self.children || []).inject(so_far) do |output, child| 359: output + child.to_haml(tabs + 1, options) 360: end 361: end
# File lib/haml/html.rb, line 396 396: def static_attribute?(name, options) 397: attr_hash[name] && !dynamic_attribute?(name, options) 398: end
# File lib/haml/html.rb, line 408 408: def static_classname?(options) 409: static_attribute?('class', options) 410: end
# File lib/haml/html.rb, line 404 404: def static_id?(options) 405: static_attribute?('id', options) && haml_css_attr?(attr_hash['id']) 406: end
# File lib/haml/html.rb, line 378 378: def to_haml_filter(filter, tabs, options) 379: content = 380: if children.first.is_a?(::Hpricot::CData) 381: children.first.content 382: else 383: CGI.unescapeHTML(self.innerText) 384: end 385: 386: content = erb_to_interpolation(content, options) 387: content.gsub!(/\A\s*\n(\s*)/, '\1') 388: original_indent = content[/\A(\s*)/, 1] 389: if content.split("\n").all? {|l| l.strip.empty? || l =~ /^#{original_indent}/} 390: content.gsub!(/^#{original_indent}/, tabulate(tabs + 1)) 391: end 392: 393: "#{tabulate(tabs)}:#{filter}\n#{content}" 394: end
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