Class: Ucode::Parsers::DerivedAge

Inherits:
Base
  • Object
show all
Defined in:
lib/ucode/parsers/derived_age.rb

Overview

Parses ‘DerivedAge.txt` — the Unicode version in which each codepoint was first assigned.

Format (UAX #44):

XXXX..YYYY; M.N
XXXX; M.N

The age is a Unicode version string like “1.1”, “5.2”, “15.0”. Coordinator merges each row into ‘CodePoint#age`.

Ranges are expanded per-codepoint (one Tuple per cp) because the Coordinator needs per-cp assignment for ‘CodePoint#age`.

Defined Under Namespace

Classes: Tuple

Class Method Summary collapse

Methods inherited from Base

each_line, parse_codepoint_or_range, parse_field, parse_hex_cp

Class Method Details

.each_record(path) ⇒ Object 



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# File 'lib/ucode/parsers/derived_age.rb', line 30

def each_record(path)
  return enum_for(:each_record, path) unless block_given?

  each_line(path) do |line|
    fields = line.fields
    next if fields.length < 2

    range = parse_codepoint_or_range(fields[0])
    age = fields[1]
    next if age.nil? || age.empty?

    each_cp(range) { |cp| yield Tuple.new(cp: cp, age: age) }
  end

  nil
end