Class: Pasta::Recipes::Base

Inherits:
Object
  • Object
show all
Includes:
Ingredients
Defined in:
lib/pasta/recipes/base.rb

Direct Known Subclasses

Gruber

Constant Summary

Constants included from Ingredients

Ingredients::ANYTHING, Ingredients::ATX_HEADING, Ingredients::AUTOMATIC_LINKS, Ingredients::BLOCKQUOTE, Ingredients::CODE, Ingredients::CODEBLOCK, Ingredients::EMPHASIS, Ingredients::EMPTY_LINE, Ingredients::HTML_ENTITIES, Ingredients::LINKS, Ingredients::LINK_DEFINITION, Ingredients::LIST, Ingredients::PAGE_BREAK, Ingredients::PARAGRAPH, Ingredients::SETEXT_HEADING

Instance Method Summary collapse

Methods included from Ingredients

#anything, #atx_headings, #automatic_links, #blockquotes, #clean_link_definitions, #code, #codeblocks, #emphasis, #empty_lines, #find_link_definitions, #grammars, #html_entities, included, #links, #list_items, #lists, #page_breaks, #paragraphs, #parse_link, #setext_headings

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

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

Public. Generic to_x parser that converts a string to the specified output format.

Uses a depth first strategy to parse a text according to incredient rules as defined in a grammar
Raises a Pasta::Error if a grammar has not been defined

text - a String to be parsed

Example

to_html('some yummy text')
# => '<p>some yummy text</p>'

Returns a String



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# File 'lib/pasta/recipes/base.rb', line 20

def method_missing(method, *args, &block)
  if method.to_s =~ /^to_(.+)$/
    # ensure a grammar has been defined
    raise Pasta::Error.new "A grammar for #{$1} has not been defined in recipe #{self.class.name}" if grammars($1.to_sym).nil?
  
    # Depth first parsing - each ingredient should accept and return an input and output
    input, output = args[0], ''
    while input != "" do
      grammars($1.to_sym).each do |rule| 
        input, output = send(rule, input, output)
      end
    end
    output.strip  # remove any trailing whitespace
  else
    super
  end
end