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# frozen_string_literal: true
require_relative "const"
require_relative "converter_dsl"
module TTY
class Prompt
module Converters
extend ConverterDSL
TRUE_VALUES = /^(t(rue)?|y(es)?|on|1)$/i.freeze
FALSE_VALUES = /^(f(alse)?|n(o)?|off|0)$/i.freeze
SINGLE_DIGIT_MATCHER = /^(?<digit>\-?\d+(\.\d+)?)$/.freeze
DIGIT_MATCHER = /^(?<open>-?\d+(\.\d+)?)
\s*(?<sep>(\.\s*){2,3}|-|,)\s*
(?<close>-?\d+(\.\d+)?)$
/x.freeze
LETTER_MATCHER = /^(?<open>\w)
\s*(?<sep>(\.\s*){2,3}|-|,)\s*
(?<close>\w)$
/x.freeze
converter(:boolean, :bool) do |input|
case input.to_s
when TRUE_VALUES then true
when FALSE_VALUES then false
else Const::Undefined
end
end
converter(:string, :str) do |input|
String(input).chomp
end
converter(:symbol, :sym) do |input|
input.to_sym
end
converter(:char) do |input|
String(input).chars.to_a[0]
end
converter(:date) do |input|
begin
require "date" unless defined?(::Date)
::Date.parse(input)
rescue ArgumentError
Const::Undefined
end
end
converter(:datetime) do |input|
begin
require "date" unless defined?(::Date)
::DateTime.parse(input.to_s)
rescue ArgumentError
Const::Undefined
end
end
converter(:time) do |input|
begin
require "time"
::Time.parse(input.to_s)
rescue ArgumentError
Const::Undefined
end
end
converter(:integer, :int) do |input|
begin
Integer(input)
rescue ArgumentError
Const::Undefined
end
end
converter(:float) do |input|
begin
Float(input)
rescue TypeError, ArgumentError
Const::Undefined
end
end
# Convert string number to integer or float
#
# @return [Integer,Float,Const::Undefined]
#
# @api private
def cast_to_num(num)
([convert(:int, num), convert(:float, num)] - [Const::Undefined]).first ||
Const::Undefined
end
module_function :cast_to_num
converter(:range) do |input|
if input.is_a?(::Range)
input
elsif match = input.to_s.match(SINGLE_DIGIT_MATCHER)
digit = cast_to_num(match[:digit])
::Range.new(digit, digit)
elsif match = input.to_s.match(DIGIT_MATCHER)
open = cast_to_num(match[:open])
close = cast_to_num(match[:close])
::Range.new(open, close, match[:sep].gsub(/\s*/, "") == "...")
elsif match = input.to_s.match(LETTER_MATCHER)
::Range.new(match[:open], match[:close],
match[:sep].gsub(/\s*/, "") == "...")
else Const::Undefined
end
end
converter(:regexp) do |input|
Regexp.new(input)
end
converter(:filepath, :file) do |input|
::File.expand_path(input)
end
converter(:pathname, :path) do |input|
require "pathname" unless defined?(::Pathname)
::Pathname.new(input)
end
converter(:uri) do |input|
require "uri" unless defined?(::URI)
::URI.parse(input)
end
converter(:list, :array) do |val|
(val.respond_to?(:to_a) ? val : val.split(/(?<!\\),/))
.map { |v| v.strip.gsub(/\\,/, ",") }
.reject(&:empty?)
end
converter(:hash, :map) do |val|
values = val.respond_to?(:to_a) ? val : val.split(/[& ]/)
values.each_with_object({}) do |pair, pairs|
key, value = pair.split(/[=:]/, 2)
if (current = pairs[key.to_sym])
pairs[key.to_sym] = Array(current) << value
else
pairs[key.to_sym] = value
end
pairs
end
end
converter_registry.keys.each do |type|
next if type =~ /list|array|map|hash/
[:"#{type}_list", :"#{type}_array", :"#{type}s"].each do |new_type|
converter(new_type) do |val|
converter_registry[:array].(val).map do |obj|
converter_registry[type].(obj)
end
end
end
[:"#{type}_map", :"#{type}_hash"].each do |new_type|
converter(new_type) do |val|
converter_registry[:hash].(val).each_with_object({}) do |(k, v), h|
h[k] = converter_registry[type].(v)
end
end
end
[:"string_#{type}_map", :"str_#{type}_map",
:"string_#{type}_hash", :"str_#{type}_hash"].each do |new_type|
converter(new_type) do |val|
converter_registry[:hash].(val).each_with_object({}) do |(k, v), h|
h[converter_registry[:string].(k)] = converter_registry[type].(v)
end
end
end
end
end # Converters
end # Prompt
end # TTY
|
