Class: Protopack::StyledYAML::TreeBuilder

Inherits:
Psych::TreeBuilder
  • Object
show all
Defined in:
lib/protopack/styled_yaml.rb

Overview

Custom tree builder class to recognize scalars tagged with ‘yaml_style`

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ TreeBuilder

Returns a new instance of TreeBuilder.



58
59
60
61
 
# File 'lib/protopack/styled_yaml.rb', line 58

def initialize(*args)
  super
  @next_sequence_or_mapping_style = nil
end

Instance Attribute Details

#next_sequence_or_mapping_style(default_style) ⇒ Object 



63
64
65
66
67
 
# File 'lib/protopack/styled_yaml.rb', line 63

def next_sequence_or_mapping_style default_style
  style = @next_sequence_or_mapping_style || default_style
  @next_sequence_or_mapping_style = nil
  style
end

Instance Method Details

#scalar(value, anchor, tag, plain, quoted, style) ⇒ Object 



69
70
71
72
73
74
75
76
77
 
# File 'lib/protopack/styled_yaml.rb', line 69

def scalar value, anchor, tag, plain, quoted, style
  if style_any?(style) and value.respond_to?(:yaml_style) and style = value.yaml_style
    if style_literal? style
      plain = false
      quoted = true
    end
  end
  super
end

#style_any?(style) ⇒ Boolean

Returns:

  • (Boolean) 


79
 
# File 'lib/protopack/styled_yaml.rb', line 79

def style_any?(style) Psych::Nodes::Scalar::ANY == style end

#style_literal?(style) ⇒ Boolean

Returns:

  • (Boolean) 


81
 
# File 'lib/protopack/styled_yaml.rb', line 81

def style_literal?(style) Psych::Nodes::Scalar::LITERAL == style end