TaskJuggler::XMLElement

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

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

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

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

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

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

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