Class: Glaemscribe::API::CharsetParser

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CharsetParser

Returns a new instance of CharsetParser.



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# File 'lib/api/charset_parser.rb', line 28

def initialize()
  @charset = nil
end

Instance Method Details

#parse(file_path) ⇒ Object 



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# File 'lib/api/charset_parser.rb', line 32

def parse(file_path)
  @charset = Charset.new(ResourceManager::charset_name_from_file_path(file_path))

  raw = File.open(file_path,"rb:utf-8").read
  doc = Glaeml::Parser.new.parse(raw)

  if(doc.errors.any?)
    @charset.errors = doc.errors
    return @charset
  end

  # TODO : verify charset glaeml like we do with modes

  doc.root_node.gpath("char").each { |char_element|
    code   = char_element.args[0].hex
    names  = char_element.args[1..-1].map{|cname| cname.strip }.reject{ |cname| cname.empty? }
    @charset.add_char(char_element.line,code,names)
  }

  doc.root_node.gpath("seq").each{ |seq_elemnt|
    names       = seq_elemnt.args
    child_node  = seq_elemnt.children.first
    seq         = (child_node && child_node.text?)?(child_node.args.first):("")
    @charset.add_sequence_char(seq_elemnt.line,names,seq)
  }

  doc.root_node.gpath("swap").each{ |element|
    trigger_one      = element.args.first
    text_lines       = element.children.select{ |c| c.text? }.map{ |c| c.args.first }
    second_triggers  = text_lines.join(" ").split(/\s/).select{ |e| e != '' }
    @charset.add_swap(element.line, trigger_one, second_triggers)
  }

  doc.root_node.gpath("virtual").each { |virtual_element|
    names     = virtual_element.args
    reversed  = false
    default   = nil
    classes   = []

    virtual_element.gpath("class").each { |class_element|
      vc =  Charset::VirtualChar::VirtualClass.new
      vc.target    = class_element.args[0]
      vc.triggers  = class_element.args[1..-1].map{|cname| cname.strip }.reject{ |cname| cname.empty? }

      # Allow triggers to be defined inside the body of the class element
      text_lines      = class_element.children.select { |c| c.text? }.map{ |c| c.args.first}
      inner_triggers  = text_lines.join(" ").split(/\s/).select{ |e| e != '' }
      vc.triggers    += inner_triggers

      classes << vc
    }
    virtual_element.gpath("reversed").each { |reversed_element|
      reversed = true
    }
    virtual_element.gpath("default").each { |default_element|
      default  = default_element.args[0]
    }

    @charset.add_virtual_char(virtual_element.line,classes,names,reversed,default)
  }

  @charset.finalize

  @charset
end