Class: CocinaDisplay::Geospatial::CoordinatesParser

Inherits:

Object

• Object
• CocinaDisplay::Geospatial::CoordinatesParser

Defined in:

lib/cocina_display/geospatial.rb

Overview

Base class for parsers that convert strings into Coordinates objects. Subclasses must define at least the PATTERN constant and self.parse method.

Direct Known Subclasses

BoundingBoxParser, CoordinateNormalizer, PointParser

Constant Summary

PATTERN =

nil

Class Method Summary

• .hemisphere_first(value) ⇒ String

  Move a trailing hemisphere letter to the front, since that is where the decimal normalizer expects it.

• .supports?(input_str) ⇒ Boolean

  If true, use this parser for the given input string.

Class Method Details

.hemisphere_first(value) ⇒ String

Move a trailing hemisphere letter to the front, since that is where the decimal normalizer expects it.

Examples:

"121.5W" becomes "W121.5"

Parameters:

• value (String)

Returns:

• (String)

# File 'lib/cocina_display/geospatial.rb', line 344

def self.hemisphere_first(value)
  value.sub(/\A(.+?)([NESW])\z/, '\2\1')
end

.supports?(input_str) ⇒ Boolean

If true, use this parser for the given input string.

Parameters:

• input_str (String)

Returns:

• (Boolean)

# File 'lib/cocina_display/geospatial.rb', line 335

def self.supports?(input_str)
  input_str.match?(self::PATTERN)
end