Class: MailParser

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pattern = nil) ⇒ MailParser

Returns a new instance of MailParser.



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# File 'lib/mail_parser/mail_parser.rb', line 4

def initialize(pattern=nil)
  @pattern = pattern
end

Instance Attribute Details

#body ⇒ Object

Returns the value of attribute body.



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# File 'lib/mail_parser/mail_parser.rb', line 2

def body
  @body
end

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/mail_parser/mail_parser.rb', line 2

def data
  @data
end

#index ⇒ Object

Returns the value of attribute index.



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# File 'lib/mail_parser/mail_parser.rb', line 2

def index
  @index
end

#pattern ⇒ Object

Returns the value of attribute pattern.



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# File 'lib/mail_parser/mail_parser.rb', line 2

def pattern
  @pattern
end

#stop ⇒ Object

Returns the value of attribute stop.



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# File 'lib/mail_parser/mail_parser.rb', line 2

def stop
  @stop
end

Instance Method Details

#match(field, *patterns) ⇒ Object 



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# File 'lib/mail_parser/mail_parser.rb', line 32

def match(field, *patterns)
  pattern = patterns[0]
  if patterns.length == 2
    invoked = false
    target_pattern = patterns[1]
  else
    invoked = true
    target_pattern = pattern
  end

  for line in @body[@index..@body.length] 
    if @stop and line =~ @stop
      throw :halt
    end
    if !invoked and line =~ pattern
      invoked = true
    end
    if invoked and line =~ target_pattern
      @data[field] = target_pattern.match(line)[1]
      @index += 1
      return
    end
    @index += 1
  end
end

#parse(body, *options, &block) ⇒ Object 



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

def parse(body, *options, &block)
  if options.include? :html
    body = truncate_html(body)
  end
  @body = body.split("\n") 
  @index = 0
  @data = {}

  if block_given?
    yield self
  end

  #call the injected pattern
  if not @pattern.nil? and not @pattern.block.nil?
    @pattern.block.call self
  end

  @data
end

#parse_until(field, pattern) ⇒ Object Also known as: match_until 



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# File 'lib/mail_parser/mail_parser.rb', line 58

def parse_until(field,pattern)
  data = @data.clone
  collections = []
  begin
    @data = {}
    @stop = pattern
    catch(:halt) do
      yield self if block_given?
    end
    @stop = nil
    collections << @data if @data != {}
  end until @body[@index] =~ pattern or @index >= @body.length
  @data = data.merge({field => collections })
end

#truncate_html(html) ⇒ Object 



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# File 'lib/mail_parser/mail_parser.rb', line 8

def truncate_html(html)
  html.gsub(/<.*>/,"")
end