Class: OpenC3::TableParser

Inherits:
PacketParser show all
Defined in:
lib/openc3/tools/table_manager/table_parser.rb

Overview

Parses the TABLE keyword definition in table configuration files.

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from PacketParser

check_item_data_types, #create_command, #create_packet, #create_telemetry, finish_create_command, finish_create_telemetry, #initialize, parse_command, parse_telemetry

Constructor Details

This class inherits a constructor from OpenC3::PacketParser

Class Method Details

.parse_table(parser, tables, warnings) ⇒ Object

Parameters:

  • parser (ConfigParser) —

    Configuration parser

  • tables (Hash) —

    Hash of the currently defined tables

  • warnings (Array<String>) —

    Any warning strings generated while parsing this command will be appened to this array



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# File 'lib/openc3/tools/table_manager/table_parser.rb', line 33

def self.parse_table(parser, tables, warnings)
  parser = TableParser.new(parser)
  parser.verify_parameters
  parser.create_table(tables, warnings)
end

Instance Method Details

#create_table(tables, warnings) ⇒ Object

Parameters:

  • tables (Array<Table>) —

    All tables defined in the configuration

  • warnings (String) —

    List of warnings to append to



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# File 'lib/openc3/tools/table_manager/table_parser.rb', line 48

def create_table(tables, warnings)
  params = @parser.parameters
  table_name = params[0].to_s.upcase
  endianness = params[1].to_s.upcase.to_sym
  if endianness != :BIG_ENDIAN && endianness != :LITTLE_ENDIAN
    raise @parser.error(
            "Invalid endianness #{params[1]}. Must be BIG_ENDIAN or LITTLE_ENDIAN.",
            @usage,
          )
  end
  type = params[2].to_s.upcase.to_sym
  case type
  when :KEY_VALUE, :ONE_DIMENSIONAL # :ONE_DIMENSIONAL is deprecated
    @parser.verify_num_parameters(3, 4, @usage)
    description = params[3].to_s
  when :ROW_COLUMN, :TWO_DIMENSIONAL # :TWO_DIMENSIONAL is deprecated
    @parser.verify_num_parameters(4, 5, @usage)
    num_rows = params[3].to_i
    description = params[4].to_s
  else
    raise @parser.error(
            "Invalid display type #{params[2]}. Must be KEY_VALUE or ROW_COLUMN.",
            @usage,
          )
  end
  table =
    Table.new(table_name, endianness, type, description, @parser.filename)
  table.num_rows = num_rows if type == :ROW_COLUMN
  TableParser.finish_create_table(table, tables, warnings)
end

#verify_parameters ⇒ Object

Verify the correct number of arguments to the TABLE keyword



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# File 'lib/openc3/tools/table_manager/table_parser.rb', line 40

def verify_parameters
  @usage =
    'TABLE <TABLE NAME> <ENDIANNESS: BIG_ENDIAN/LITTLE_ENDIAN> <DISPLAY: KEY_VALUE/ROW_COLUMN> <ROW_COLUMN ROW COUNT> <DESCRIPTION (Optional)>'
  @parser.verify_num_parameters(3, 5, @usage)
end