TaskJuggler::XMLElement

    # File lib/XMLElement.rb, line 22
22:     def initialize(name, attributes = {}, selfClosing = false)
23:       if (name.nil? && attributes.length > 0) ||
24:          (!name.nil? && !name.is_a?(String))
25:         raise "Name must be nil or a String "
26:       end
27:       @name = name
28:       attributes.each do |n, v|
29:         if n.nil? || v.nil?
30:           raise "Attribute name (#{n}) or value (#{v}) may not be nil"
31:         end
32:       end
33:       @attributes = attributes
34:       @children = []
35:       # This can be set to true if <name /> is legal for this element.
36:       @selfClosing = selfClosing
37:     end

    # File lib/XMLElement.rb, line 40
40:     def <<(arg)
41:       # If the argument is an array, we have to insert each element
42:       # individually.
43:       if arg.is_a?(XMLElement)
44:         @children << arg
45:       elsif arg.is_a?(Array)
46:         # Delete all nil entries
47:         arg.delete_if { |i| i.nil? }
48:         # Check that the rest are really all XMLElement objects.
49:         arg.each do |i|
50:           unless i.is_a?(XMLElement)
51:             raise "Element must be of type XMLElement not #{i.class}"
52:           end
53:         end
54:         @children += arg
55:       elsif arg.nil?
56:         # do nothing
57:       else
58:         raise "Elements must be of type XMLElement not #{arg.class}"
59:       end
60:       self
61:     end

    # File lib/XMLElement.rb, line 69
69:     def [](attribute)
70:       @attributes[attribute]
71:     end

    # File lib/XMLElement.rb, line 64
64:     def []=(attribute, value)
65:       @attributes[attribute] = value
66:     end

    # File lib/XMLElement.rb, line 75
75:     def to_s(indent = 0)
76:       out = '<' + @name
77:       @attributes.keys.sort.each do |attrName|
78:         out << " #{attrName}=\"#{escape(@attributes[attrName], true)}\""
79:       end
80:       if @children.empty? && @selfClosing
81:         out << '/>'
82:       else
83:         out << '>'
84:         @children.each do |child|
85:           # We only insert newlines for multiple childs and after a tag has been
86:           # closed.
87:           if @children.size > 1 && !child.is_a?(XMLText) && out[1] == >>
88:             out << "\n" + indentation(indent + 1)
89:           end
90:           out << child.to_s(indent + 1)
91:         end
92:         out << "\n" + indentation(indent) if @children.size > 1 && out[1] == >>
93:         out << '</' + @name + '>'
94:       end
95:     end

     # File lib/XMLElement.rb, line 100
100:     def escape(str, quotes = false)
101:       out = ''
102:       str.each_utf8_char do |c|
103:         case c
104:         when '&'
105:           out << '&amp;'
106:         when '"'
107:           out << '\"'
108:         else
109:           out << c
110:         end
111:       end
112:       out
113:     end

     # File lib/XMLElement.rb, line 115
115:     def indentation(indent)
116:       ' ' * indent
117:     end