Class: Liquid::Case

Inherits:
Block show all
Defined in:
lib/liquid/tags/case.rb

Constant Summary collapse

Syntax = 
/(#{Expression})/
WhenSyntax = 
/(#{Expression})(?:(?:\s+or\s+|\s*\,\s*)(#{Expression}.*))?/

Instance Attribute Summary

Attributes inherited from Tag

#nodelist

Instance Method Summary collapse

Methods inherited from Block

#block_delimiter, #block_name, #create_variable, #end_tag, #parse

Methods inherited from Tag

#name, #parse

Constructor Details

#initialize(tag_name, markup, tokens) ⇒ Case 



6
7
8
9
10
11
12
13
14
15
16
 
# File 'lib/liquid/tags/case.rb', line 6

def initialize(tag_name, markup, tokens)      
  @blocks = []
  
  if markup =~ Syntax
    @left = $1
  else
    raise SyntaxError.new("Syntax Error in tag 'case' - Valid syntax: case [condition]")
  end
        
  super
end

Instance Method Details

#render(context) ⇒ Object 



30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
 
# File 'lib/liquid/tags/case.rb', line 30

def render(context)      
  context.stack do          
    execute_else_block = true
    
    @blocks.inject([]) do |output, block|
  
      if block.else? 
        
        return render_all(block.attachment, context) if execute_else_block
        
      elsif block.evaluate(context)
        
        execute_else_block = false        
        output += render_all(block.attachment, context)                    
      end            
  
      output
    end
  end          
end

#unknown_tag(tag, markup, tokens) ⇒ Object 



18
19
20
21
22
23
24
25
26
27
28
 
# File 'lib/liquid/tags/case.rb', line 18

def unknown_tag(tag, markup, tokens)
  @nodelist = []
  case tag
  when 'when'
    record_when_condition(markup)
  when 'else'
    record_else_condition(markup)
  else
    super
  end
end