Handles page fragment nodes and provides utility methods for parsing HTML headers and generating fragment nodes from them.
| Class | Webgen::SourceHandler::Fragment |
| In: |
lib/webgen/sourcehandler/fragment.rb
|
| Parent: | Object |
Handles page fragment nodes and provides utility methods for parsing HTML headers and generating fragment nodes from them.
| HTML_HEADER_REGEXP | = | /<h([123456])(?:>|\s([^>]*)>)(.*?)<\/h\1\s*>/i |
| HTML_ATTR_REGEXP | = | /\s*(\w+)\s*=\s*('|")(.+?)\2\s*/ |
Create nested fragment nodes under parent from sections (which can be created using parse_html_headers). path is the source path that defines the fragments (which is not the same as the creation path for parent). The meta information in_menu of the fragment nodes is set to the parameter in_menu and the meta info sort_info is calculated from the base si value.
# File lib/webgen/sourcehandler/fragment.rb, line 53
53: def create_fragment_nodes(sections, parent, path, in_menu, si = 1000)
54: sections.each do |level, id, title, sub_sections|
55: fragment_path = parent.alcn.sub(/#.*$/, '') + '#' + id
56: node = website.blackboard.invoke(:create_nodes,
57: Webgen::Path.new(fragment_path, path.source_path),
58: self) do |cn_path|
59: cn_path.meta_info['title'] = title
60: cn_path.meta_info['in_menu'] = in_menu
61: cn_path.meta_info['sort_info'] = si = si.succ
62: create_node(cn_path, :parent => parent)
63: end.first
64: create_fragment_nodes(sub_sections, node, path, in_menu, si.succ)
65: end
66: end
Parse the string content for headers +h1+, …, +h6+ and return the found, nested sections.
Only those headers are used which have an id attribute set. The method returns a list of arrays with entries level, id, title, sub sections where sub sections is such a list again.
# File lib/webgen/sourcehandler/fragment.rb, line 20
20: def parse_html_headers(content)
21: sections = []
22: stack = []
23: content.scan(HTML_HEADER_REGEXP).each do |level,attrs,title|
24: next if attrs.nil?
25: id_attr = attrs.scan(HTML_ATTR_REGEXP).find {|name,sep,value| name == 'id'}
26: next if id_attr.nil?
27: id = id_attr[2]
28:
29: section = [level.to_i, id, title, []]
30: success = false
31: while !success
32: if stack.empty?
33: sections << section
34: stack << section
35: success = true
36: elsif stack.last.first < section.first
37: stack.last.last << section
38: stack << section
39: success = true
40: else
41: stack.pop
42: end
43: end
44: end
45: sections
46: end