Class: Radius::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/radius/parser.rb

Overview

The Radius parser. Initialize a parser with a Context object that defines how tags should be expanded. See the QUICKSTART for a detailed explaination of its usage.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context = Context.new, options = {}) ⇒ Parser

Creates a new parser object initialized with a Context.



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# File 'lib/radius/parser.rb', line 19

def initialize(context = Context.new, options = {})
  if context.kind_of?(Hash) and options.empty?
    options, context = context, (context[:context] || context['context'])
  end
  options = Utility.symbolize_keys(options)
  self.context = context ? context.dup : Context.new
  self.tag_prefix = options[:tag_prefix] || 'radius'
  self.scanner = options[:scanner] || default_scanner
end

Instance Attribute Details

#context ⇒ Object

The Context object used to expand template tags.



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# File 'lib/radius/parser.rb', line 9

def context
  @context
end

#scanner ⇒ Object

The class that performs tokenization of the input string



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# File 'lib/radius/parser.rb', line 16

def scanner
  @scanner
end

#tag_prefix ⇒ Object

The string that prefixes all tags that are expanded by a parser (the part in the tag name before the first colon).



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# File 'lib/radius/parser.rb', line 13

def tag_prefix
  @tag_prefix
end

Instance Method Details

#parse(string) ⇒ Object

Parses string for tags, expands them, and returns the result.



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# File 'lib/radius/parser.rb', line 30

def parse(string)
  @stack = [ ParseContainerTag.new { |t| Utility.array_to_s(t.contents) } ]
  tokenize(string)
  stack_up
  @stack.last.to_s
end