Class: Builder::XmlMarkup

Inherits:
Object
  • Object
show all
Defined in:
lib/cgi-spa/builder.rb,
lib/cgi-spa/builder.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args, &block) ⇒ Object 



59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
 
# File 'lib/cgi-spa/builder.rb', line 59

def method_missing(sym, *args, &block)
    text = nil
  attrs = nil
  sym = "#{sym}:#{args.shift}" if args.first.kind_of?(Symbol)
  args.each do |arg|
    case arg
    when Hash
      attrs ||= {}
      attrs.merge!(arg)
    else
      text ||= ''
      text << arg.to_s
    end
  end
  if block
    unless text.nil?
      raise ArgumentError, "XmlMarkup cannot mix a text argument with a block"
    end
    _indent
    _start_tag(sym, attrs)
    _newline
    begin ### Added
      _nested_structures(block)
    ensure ### Added
      _indent
      _end_tag(sym)
      _newline
    end ### Added
  elsif text.nil?
    _indent
    _start_tag(sym, attrs, true)
    _newline
  else
    _indent
    _start_tag(sym, attrs)
    text! text
    _end_tag(sym)
    _newline
  end
  @target
end

Instance Method Details

#indented_data!(data) ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/cgi-spa/builder.rb', line 11

def indented_data!(data)
  return if data.strip.length == 0
  lines = data.gsub(/\n\s*\n/,"\n")
  unindent = lines.scan(/^ */).map {|str| str.length}.min

  before  = Regexp.new('^'.ljust(unindent+1))
  after   =  " " * (@level * @indent)
  data = data.gsub(before, after)

  if block_given?
    yield data 
  else
    self << data
  end

  _newline unless data =~ /\n\Z/
end

#indented_text!(text) ⇒ Object 



5
6
7
 
# File 'lib/cgi-spa/builder.rb', line 5

def indented_text!(text)
  indented_data!(text) {|data| text! data}
end

#traceback!(exception = $!, klass = 'traceback') ⇒ Object 



31
32
33
34
35
36
37
 
# File 'lib/cgi-spa/builder.rb', line 31

def traceback!(exception=$!, klass='traceback')
  pre :class=>klass do
    text! exception.inspect
    _newline
    exception.backtrace.each {|frame| text!((' '*@indent)+frame + "\n")}
  end
end