回答編集履歴
3
修正
answer
CHANGED
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@@ -20,7 +20,7 @@
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20
20
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21
21
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22
22
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unless entry.name.valid_encoding?
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23
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-
entry.name.force_encoding case NKF.guess
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23
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+
entry.name.force_encoding case NKF.guess(entry.name)
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24
24
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when NKF::EUC then 'euc-jp'
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25
25
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when NKF::SJIS then 'cp932'
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26
26
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when NKF::UTF8 then 'utf-8'
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2
修正
answer
CHANGED
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@@ -17,6 +17,8 @@
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17
17
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```rb
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18
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# NKFを用いた場合
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19
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require 'nkf'
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20
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+
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21
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+
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20
22
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unless entry.name.valid_encoding?
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21
23
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entry.name.force_encoding case NKF.guess
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24
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when NKF::EUC then 'euc-jp'
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1
追記
answer
CHANGED
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@@ -11,4 +11,25 @@
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11
11
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なので、unpack時にutf-8でない場合は自分で文字コードを推定する必要があります。
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12
12
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13
13
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14
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-
[`NKF.guess`](https://docs.ruby-lang.org/ja/latest/method/NKF/m/guess.html)や[charlock_holmes](https://github.com/brianmario/charlock_holmes)を用いる方法があります。
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14
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+
[`NKF.guess`](https://docs.ruby-lang.org/ja/latest/method/NKF/m/guess.html)や[charlock_holmes](https://github.com/brianmario/charlock_holmes)を用いる方法があります。
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15
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+
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16
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+
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17
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+
```rb
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18
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+
# NKFを用いた場合
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19
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+
require 'nkf'
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20
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+
unless entry.name.valid_encoding?
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21
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+
entry.name.force_encoding case NKF.guess
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22
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+
when NKF::EUC then 'euc-jp'
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23
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+
when NKF::SJIS then 'cp932'
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24
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+
when NKF::UTF8 then 'utf-8'
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25
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+
when NKF::UTF16 then 'utf-16'
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26
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+
when Encoding::EUCJP_MS then Encoding::EUCJP_MS
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27
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+
when Encoding::CP51932 then Encoding::CP51932
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28
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+
when Encoding::WINDOWS_31J then Encoding::WINDOWS_31J
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29
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else
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30
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+
# JISコードもしくは不明
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31
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raise "文字コードが想定外です"
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32
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end
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33
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+
entry.name.encode! 'utf-8'
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34
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+
end
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35
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+
```
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