Class: HierarchyWriter

Inherits:
Object
  • Object
show all
Defined in:
lib/HierarchyWriter.rb

Class Method Summary collapse

Class Method Details

.dump_ancestors_of(node) ⇒ Object

print the ancestors of node as a tree using line drawing characters node is expected to respond to #name and #ancestors returns the indent array which can be passed to dump_descendants_of



35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
 
# File 'lib/HierarchyWriter.rb', line 35

def self.dump_ancestors_of node

  indent = []
  ansc = node.ancestors

  ansc.each_with_index do |c, index| 
    indent.each_with_index do |draw, index| 
      if index > 0 
        print "  "
      end
    end 

    if index != 0
      print "└─"
    end
    puts "○ " + c.name
    last = index == indent.size - 1 
    indent.push !last
  end 

  indent
end

.dump_descendants_of(node, indent = [], depth = :depth_all) ⇒ Object

print the descendants of node as a tree using line drawing characters node is expected to respond to #name and #descendants



5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
# File 'lib/HierarchyWriter.rb', line 5

def self.dump_descendants_of node, indent = [], depth = :depth_all
  indent.each_with_index do |draw, index| 
    last = index == indent.size - 1 
    if draw 
      print last ? "└" : " "
    else
      print last ? "├" : "│"
    end
    print last ? "─" : " "
  end 

  puts "○ " + node.name

  if depth != :depth_none
    desc = node.descendants
    if desc
      if depth == :depth_immediate
        depth = :depth_none
      end
      desc.each_with_index do |c, index|
        last = index == desc.size - 1
        self.dump_descendants_of c, indent.clone.push(last), depth
      end
    end
  end
end

.dump_hierarchy_of(node, depth = :depth_all) ⇒ Object

prints the ancestors and descendants of node



59
60
61
62
 
# File 'lib/HierarchyWriter.rb', line 59

def self.dump_hierarchy_of node, depth = :depth_all
  indent = HierarchyWriter::dump_ancestors_of node
  HierarchyWriter::dump_descendants_of node, indent, depth
end