Class: Rain::Parser

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

Constant Summary collapse

@@title_regex = 
/{title (.*?)}/m
@@route_regex = 
/{route (.*?)}/m
@@response_regex = 
/{response (.*?) (.*?)}/m
@@param_regex = 
/{param (.*?) (.*?)}/m
@@param_regex_default = 
/{param (.*?) (.*?) (.*?)}/m
@@method_regex = 
/(GET|PUT|POST|DELETE|PATCH|HEAD)/

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type) ⇒ Parser 



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# File 'lib/parser.rb', line 12

def initialize(type)
  self.type = type
end

Instance Attribute Details

#current_line ⇒ Object

Returns the value of attribute current_line.



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# File 'lib/parser.rb', line 3

def current_line
  @current_line
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/parser.rb', line 3

def type
  @type
end

Instance Method Details

#extract_method(line) ⇒ Object 



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# File 'lib/parser.rb', line 133

def extract_method(line)
  line[@@method_regex, 1]
end

#extract_param_default(line) ⇒ Object 



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# File 'lib/parser.rb', line 173

def extract_param_default(line)
  line[@@param_regex_default, 3]
end

#extract_param_name(line) ⇒ Object 



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# File 'lib/parser.rb', line 161

def extract_param_name(line)
  line[@@param_regex, 1]
end

#extract_param_type(line) ⇒ Object 



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# File 'lib/parser.rb', line 165

def extract_param_type(line)
  if line[@@param_regex_default, 2].nil?
    return line[@@param_regex, 2]
  end

  return line[@@param_regex_default, 2]
end

#extract_response_code(line) ⇒ Object 



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# File 'lib/parser.rb', line 149

def extract_response_code(line)
  line[@@response_regex, 1]
end

#extract_response_id(line) ⇒ Object 



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# File 'lib/parser.rb', line 153

def extract_response_id(line)
  line[@@response_regex, 2]
end

#extract_route(line) ⇒ Object 



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# File 'lib/parser.rb', line 141

def extract_route(line)
  line[@@route_regex, 1]
end

#extract_title(line) ⇒ Object 



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# File 'lib/parser.rb', line 125

def extract_title(line)
  line[@@title_regex, 1]
end

#is_method?(line) ⇒ Boolean 



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# File 'lib/parser.rb', line 129

def is_method?(line)
  line.start_with? '{method'
end

#is_param?(line) ⇒ Boolean 



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# File 'lib/parser.rb', line 157

def is_param?(line)
  line.start_with?('{param') || line.start_with?('{/param')
end

#is_response?(line) ⇒ Boolean 



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# File 'lib/parser.rb', line 145

def is_response?(line)
  line.start_with?('{response') || line.start_with?('{/response')
end

#is_route?(line) ⇒ Boolean 



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# File 'lib/parser.rb', line 137

def is_route?(line)
  line.start_with? '{route'
end

#is_title?(line) ⇒ Boolean 



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# File 'lib/parser.rb', line 121

def is_title?(line)
  line.start_with? '{title'
end

#parse(line, parse_signatures = false) ⇒ Object

parses the current line, determining which tag the line contains and returning the result accordingly in a hash with the tag type



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

def parse(line, parse_signatures = false)

  # return nil if there is no # on the line for ruby.
  basic_stripped = line.strip().sub(' do', '')
  return nil if self.type == :RUBY && basic_stripped == ''

  # see if a signature part can be extracted if a signature is enabled
  if parse_signatures
    return nil if self.type == :RUBY && !basic_stripped.start_with?('#') && !(basic_stripped =~ /class|def|get|put|post|delete/)
  else
    return nil if self.type == :RUBY && !basic_stripped.start_with?('#')
  end

  # strip blanks and # from the current line
  line = strip_current_line(line)

  # convert blank lines to new lines
  if line == ""
    line = "\n"
  end

  # title tag
  if is_title?(line)
    return {
      tag: :title,
      title: extract_title(line)
    }
  end

  # method tag
  if is_method?(line)
    return {
      tag: :method,
      method: extract_method(line)
    }
  end

  # route tag
  if is_route?(line)
    return {
      tag: :route,
      route: extract_route(line)
    }
  end

  # response tag. must determine whether to open the tag
  # for extra docs or close it
  if is_response?(line)
    open = line.start_with?('{/response') ? false : true
    return {
      tag: :response,
      code: extract_response_code(line),
      open: open,
      id: extract_response_id(line)
    }
  end

  # param tag. must determine whether to open the tag
  # for extra docs or close it
  if is_param?(line)
    open = line.start_with?('{/param') ? false : true
    return {
      tag: :param,
      name: extract_param_name(line),
      type: extract_param_type(line),
      default: extract_param_default(line),
      open: open
    }
  end

  # return method signature if found
  if parse_signatures
    if line.start_with?('def ', 'class ', 'get "', "get '", 'put "', "put '", 'post "', "post '", 'delete "', "delete '")
      return {
        tag: :signature,
        text: line
      }
    end
  end

  # return simple doc line if no tags fit
  return {
    tag: :doc,
    text: line
  }
end

#strip_current_line(line) ⇒ Object

remove any extra spaces from the current line and remove the comma # at the start of the line if the parser is for a ruby file



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# File 'lib/parser.rb', line 109

def strip_current_line(line)
  line.strip!

  # check the current type and if ruby, remove the #
  if self.type == :RUBY
    line.sub!('#', '')
    line.strip!
  end

  return line
end