Sha256: 3b9712788dec76b00586ef08725ba269ff96b45e9d993b3b32ec64f1e88732fd
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Size: 1.67 KB
Versions: 27
Compression:
Stored size: 1.67 KB
Contents
# -*- encoding: utf-8 -*-
# -*- frozen_stringing_literal: true -*-
# -*- warn_indent: true -*-
module UnitMeasurements
class Normalizer
FRACTIONS_SYMBOLS = {
"¼" => "1/4",
"½" => "1/2",
"¾" => "3/4",
"⅓" => "1/3",
"⅔" => "2/3",
"⅕" => "1/5",
"⅖" => "2/5",
"⅗" => "3/5",
"⅘" => "4/5",
"⅙" => "1/6",
"⅚" => "5/6",
"⅐" => "1/7",
"⅛" => "1/8",
"⅜" => "3/8",
"⅝" => "5/8",
"⅞" => "7/8",
"⅑" => "1/9",
"⅒" => "1/10",
"↉" => "0/3",
"⁄" => "/"
}.freeze
EXPONENTS_SYMBOLS = {
"⁰" => "0",
"¹" => "1",
"²" => "2",
"³" => "3",
"⁴" => "4",
"⁵" => "5",
"⁶" => "6",
"⁷" => "7",
"⁸" => "8",
"⁹" => "9",
"⁺" => "+",
"⁻" => "-",
}
FRACTION_REGEX = /(#{FRACTIONS_SYMBOLS.keys.join("|")})/
EXPONENT_REGEX = /([\d]+[Ee]?[+-]?)(#{EXPONENTS_SYMBOLS.keys.join("|")})/
RATIO_REGEX = /([\d]+):([\d]+)/
class << self
def normalize(string)
string.dup.tap do |str|
if str =~ Regexp.new(FRACTION_REGEX)
FRACTIONS_SYMBOLS.each do |search, replace|
str.gsub!(search) { " #{replace}" }
end
end
if str =~ Regexp.new(EXPONENT_REGEX)
EXPONENTS_SYMBOLS.each do |search, replace|
str.gsub!(search) { "#{replace}" }
end
end
if str =~ Regexp.new(RATIO_REGEX)
str.gsub!(RATIO_REGEX) { "#{$1.to_i}/#{$2.to_i}" }
end
str.strip!
end
end
end
end
end
Version data entries
27 entries across 27 versions & 1 rubygems