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yaml (38404.0)
-
構造化されたデータを表現するフォーマットであるYAML (YAML Ain't Markup Language) を扱うためのライブラリです。
...あるYAML (YAML Ain't Markup Language) を扱うためのライブラリです。
//emlist[例1: 構造化された配列][ruby]{
require 'yaml'
data = ["Taro san", "Jiro san", "Saburo san"]
str_r = YAML.dump(data)
str_l = <<~YAML_EOT
---
- Taro san
- Jiro san
- Saburo san
YAML_EOT
p st......> true
//}
//emlist[例2: 構造化されたハッシュ][ruby]{
require 'yaml'
require 'date'
str_l = <<~YAML_EOT
Tanaka Taro: {age: 35, birthday: 1970-01-01}
Suzuki Suneo: {
age: 13,
birthday: 1992-12-21
}
YAML_EOT
str_r = {}
str_r["Tanaka Taro"] = {
"age" => 35,
"birthday" =>......= {
"age" => 13,
"birthday" => Date.new(1992, 12, 21)
}
p str_r == YAML.load(str_l) # => true
//}
//emlist[例3: 構造化されたログ][ruby]{
require 'yaml'
require 'stringio'
strio_r = StringIO.new(<<~YAML_EOT)
---
time: 2008-02-25 17:03:12 +09:00
target: YAML
version: 4
log:... -
NEWS for Ruby 3
. 0 . 0 (126.0) -
NEWS for Ruby 3.0.0 このドキュメントは前回リリース以降のバグ修正を除くユーザーに影響のある機能の変更のリストです。
...ated from positional arguments.
Code that resulted in deprecation warnings in Ruby 2.7 will now
result in ArgumentError or different behavior. 14183
* Procs accepting a single rest argument and keywords are no longer
subject to autosplatting. This now matches the behavior of Procs......o keywords.
16166
//emlist[][ruby]{
pr = proc{|*a, **kw| [a, kw]}
pr.call([1])
# 2.7 => [[1], {}]
# 3.0 => [[[1]], {}]
pr.call([1, {a: 1}])
# 2.7 => [[1], {:a=>1}] # and deprecation warning
# 3.0 => a=>1}, {}]
//}
* Arguments forwarding (`...`) now supports leading arguments.
16378
//......data[(1..).step(2)] # take each second element
# => ["data1", "data2", "data3"]
//}
* Binding
* Binding#eval when called with one argument will use `"(eval)"` for `__FILE__` and `1` for `__LINE__` in the evaluated code. 4352 17419
* ConditionVariable
* ConditionVariable#wait may now inv...