@see Hpricot @private
@see Haml::HTML::Node#to_haml
# File lib/haml/html.rb, line 234 234: def to_haml(tabs, options) 235: return "" if converted_to_haml 236: if name == "script" && 237: (attr_hash['type'].nil? || attr_hash['type'] == "text/javascript") && 238: (attr_hash.keys - ['type']).empty? 239: return to_haml_filter(:javascript, tabs, options) 240: elsif name == "style" && 241: (attr_hash['type'].nil? || attr_hash['type'] == "text/css") && 242: (attr_hash.keys - ['type']).empty? 243: return to_haml_filter(:css, tabs, options) 244: end 245: 246: output = tabulate(tabs) 247: if options[:erb] && name[0...5] == 'haml:' 248: case name[5..1] 249: when "loud" 250: lines = CGI.unescapeHTML(inner_text).split("\n"). 251: map {|s| s.rstrip}.reject {|s| s.strip.empty?} 252: lines.first.gsub!(/^[ \t]*/, "= ") 253: 254: if lines.size > 1 # Multiline script block 255: # Normalize the indentation so that the last line is the base 256: indent_str = lines.last[/^[ \t]*/] 257: indent_re = /^[ \t]{0,#{indent_str.count(" ") + 8 * indent_str.count("\t")}}/ 258: lines.map! {|s| s.gsub!(indent_re, '')} 259: 260: # Add an extra " " to make it indented relative to "= " 261: lines[1..1].each {|s| s.gsub!(/^/, " ")} 262: 263: # Add | at the end, properly aligned 264: length = lines.map {|s| s.size}.max + 1 265: lines.map! {|s| "%#{-length}s|" % s} 266: 267: if next_sibling && next_sibling.is_a?(Hpricot::Elem) && next_sibling.name == "haml:loud" && 268: next_sibling.inner_text.split("\n").reject {|s| s.strip.empty?}.size > 1 269: lines << "-#" 270: end 271: end 272: return lines.map {|s| output + s + "\n"}.join 273: when "silent" 274: return CGI.unescapeHTML(inner_text).split("\n").map do |line| 275: next "" if line.strip.empty? 276: "#{output}- #{line.strip}\n" 277: end.join 278: when "block" 279: return render_children("", tabs, options) 280: end 281: end 282: 283: if self.next && self.next.text? && self.next.content =~ /\A[^\s]/ 284: if self.previous.nil? || self.previous.text? && 285: (self.previous.content =~ /[^\s]\Z/ || 286: self.previous.content =~ /\A\s*\Z/ && self.previous.previous.nil?) 287: nuke_outer_whitespace = true 288: else 289: output << "= succeed #{self.next.content.slice!(/\A[^\s]+/).dump} do\n" 290: tabs += 1 291: output << tabulate(tabs) 292: end 293: end 294: 295: output << "%#{name}" unless name == 'div' && 296: (static_id?(options) || 297: static_classname?(options) && 298: attr_hash['class'].split(' ').any?(&method(:haml_css_attr?))) 299: 300: if attr_hash 301: if static_id?(options) 302: output << "##{attr_hash['id']}" 303: remove_attribute('id') 304: end 305: if static_classname?(options) 306: leftover = attr_hash['class'].split(' ').reject do |c| 307: next unless haml_css_attr?(c) 308: output << ".#{c}" 309: end 310: remove_attribute('class') 311: set_attribute('class', leftover.join(' ')) unless leftover.empty? 312: end 313: output << haml_attributes(options) if attr_hash.length > 0 314: end 315: 316: output << ">" if nuke_outer_whitespace 317: output << "/" if empty? && !etag 318: 319: if children && children.size == 1 320: child = children.first 321: if child.is_a?(::Hpricot::Text) 322: if !child.to_s.include?("\n") 323: text = child.to_haml(tabs + 1, options) 324: return output + " " + text.lstrip.gsub(/^\\/, '') unless text.chomp.include?("\n") 325: return output + "\n" + text 326: elsif ["pre", "textarea"].include?(name) || 327: (name == "code" && parent.is_a?(::Hpricot::Elem) && parent.name == "pre") 328: return output + "\n#{tabulate(tabs + 1)}:preserve\n" + 329: innerText.gsub(/^/, tabulate(tabs + 2)) 330: end 331: elsif child.is_a?(::Hpricot::Elem) && child.name == "haml:loud" 332: return output + child.to_haml(tabs + 1, options).lstrip 333: end 334: end 335: 336: render_children(output + "\n", tabs, options) 337: end
# File lib/haml/html.rb, line 384 384: def dynamic_attribute?(name, options) 385: options[:erb] and dynamic_attributes.key?(name) 386: end
# File lib/haml/html.rb, line 347 347: def dynamic_attributes 348: @dynamic_attributes ||= begin 349: Haml::Util.map_hash(attr_hash) do |name, value| 350: next if value.empty? 351: full_match = nil 352: ruby_value = value.gsub(%{<haml:loud>\s*(.+?)\s*</haml:loud>}) do 353: full_match = $`.empty? && $'.empty? 354: CGI.unescapeHTML(full_match ? $1: "\#{#{$1}}") 355: end 356: next if ruby_value == value 357: [name, full_match ? ruby_value : %("#{ruby_value}")] 358: end 359: end 360: end
Returns a string representation of an attributes hash that’s prettier than that produced by Hash#inspect
# File lib/haml/html.rb, line 402 402: def haml_attributes(options) 403: attrs = attr_hash.sort.map do |name, value| 404: value = dynamic_attribute?(name, options) ? dynamic_attributes[name] : value.inspect 405: name = name.index(/\W/) ? name.inspect : ":#{name}" 406: "#{name} => #{value}" 407: end 408: "{#{attrs.join(', ')}}" 409: end
# File lib/haml/html.rb, line 396 396: def haml_css_attr?(attr) 397: attr =~ /^[-:\w]+$/ 398: end
# File lib/haml/html.rb, line 341 341: def render_children(so_far, tabs, options) 342: (self.children || []).inject(so_far) do |output, child| 343: output + child.to_haml(tabs + 1, options) 344: end 345: end
# File lib/haml/html.rb, line 380 380: def static_attribute?(name, options) 381: attr_hash[name] && !dynamic_attribute?(name, options) 382: end
# File lib/haml/html.rb, line 392 392: def static_classname?(options) 393: static_attribute?('class', options) 394: end
# File lib/haml/html.rb, line 388 388: def static_id?(options) 389: static_attribute?('id', options) && haml_css_attr?(attr_hash['id']) 390: end
# File lib/haml/html.rb, line 362 362: def to_haml_filter(filter, tabs, options) 363: content = 364: if children.first.is_a?(::Hpricot::CData) 365: children.first.content 366: else 367: CGI.unescapeHTML(self.innerText) 368: end 369: 370: content = erb_to_interpolation(content, options) 371: content.gsub!(/\A\s*\n(\s*)/, '\1') 372: original_indent = content[/\A(\s*)/, 1] 373: if content.split("\n").all? {|l| l.strip.empty? || l =~ /^#{original_indent}/} 374: content.gsub!(/^#{original_indent}/, tabulate(tabs + 1)) 375: end 376: 377: "#{tabulate(tabs)}:#{filter}\n#{content}" 378: end
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