Class: Markdoc::Sequence::Diagram

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input, options = {}) ⇒ Diagram

Returns a new instance of Diagram.



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# File 'lib/markdoc/sequence.rb', line 222

def initialize(input, options = {})
  self.input = input
  self.output = []
  self.roles = []
  self.messages = []
  self.rows = 0
  self.attributes = DEFAULTS.dup

  options.each do |key, value|
    attributes.merge!(key => value)
  end
end

Instance Attribute Details

#attributes ⇒ Object

Returns the value of attribute attributes.



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# File 'lib/markdoc/sequence.rb', line 220

def attributes
  @attributes
end

#input ⇒ Object

Returns the value of attribute input.



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# File 'lib/markdoc/sequence.rb', line 220

def input
  @input
end

#messages ⇒ Object

Returns the value of attribute messages.



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# File 'lib/markdoc/sequence.rb', line 220

def messages
  @messages
end

#output ⇒ Object

Returns the value of attribute output.



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# File 'lib/markdoc/sequence.rb', line 220

def output
  @output
end

#roles ⇒ Object

Returns the value of attribute roles.



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# File 'lib/markdoc/sequence.rb', line 220

def roles
  @roles
end

#rows ⇒ Object

Returns the value of attribute rows.



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# File 'lib/markdoc/sequence.rb', line 220

def rows
  @rows
end

Instance Method Details

#find(id) ⇒ Object 



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# File 'lib/markdoc/sequence.rb', line 235

def find(id)
  roles.detect{|role| role.id == id.strip} or raise("Non-declared role: #{id}")
end

#height ⇒ Object 



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# File 'lib/markdoc/sequence.rb', line 300

def height
  attributes[:message][:offset] +
    attributes[:message][:spacing] * rows +
    attributes[:diagram][:offsety] * 2
end

#parse ⇒ Object 



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# File 'lib/markdoc/sequence.rb', line 239

def parse
  input.split("\n").each do |line|
    next if line.strip.empty?

    if matches = line.match(/^(?<id>[a-zA-Z0-9_ \t]+) *= *(?<label>[a-zA-Z0-9_ \t]+)/)
      # User = Actor
      roles << Role.new(
        id: matches[:id],
        label: matches[:label],
        column: roles.size,
        diagram: attributes[:diagram],
        ui: attributes[:role]
      )
    elsif matches = line.match(/^(?<role1>[a-zA-Z0-9_ \t]+) *(?<op>[<\-~>]{2}) *(?<role2>[a-zA-Z0-9_ \t]+):(?<label>[^#]+)#?(?<comment>.*)/)
      # User -> Web : Login
      messages << Message.new(
        role1: find(matches[:role1]),
        role2: find(matches[:role2]),
        row: rows,
        op: matches[:op],
        label: matches[:label],
        comment: matches[:comment],
        diagram: attributes[:diagram],
        ui: attributes[:message]
      )
      self.rows += 1
      # comment takes 1 more row
      self.rows += 1 if matches[:comment].length > 0
    elsif matches = line.match(/^(?<role>[a-zA-Z0-9_ \t]+) *:(?<label>[^#]+)#?(?<comment>.*)/)
      # Web : Save the form
      messages << Message.new(
        role1: find(matches[:role]),
        role2: find(matches[:role]),
        row: rows,
        op: '->',
        label: matches[:label],
        comment: matches[:comment],
        diagram: attributes[:diagram],
        ui: attributes[:message]
      )
      # self message takes 2 rows
      self.rows += 2
    end
  end

  prev = nil
  roles.each do |succ|
    succ.prev = prev
    prev.succ = succ if prev
    prev = succ
  end
end

#print ⇒ Object 



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# File 'lib/markdoc/sequence.rb', line 292

def print
  template % {
    width: width,
    height: height,
    content: (roles + messages).map(&:print).join("\n")
  }
end

#width ⇒ Object 



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# File 'lib/markdoc/sequence.rb', line 306

def width
  (attributes[:role][:spacing] + attributes[:role][:width]) * roles.size +
    attributes[:diagram][:offsetx]
end