回答編集履歴
3
修正
test
CHANGED
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@@ -42,7 +42,7 @@
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42
42
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43
43
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unless entry.name.valid_encoding?
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44
44
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45
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-
entry.name.force_encoding case NKF.guess
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45
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+
entry.name.force_encoding case NKF.guess(entry.name)
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46
46
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47
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when NKF::EUC then 'euc-jp'
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48
48
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2
修正
test
CHANGED
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@@ -36,6 +36,10 @@
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36
36
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37
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require 'nkf'
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38
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39
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+
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40
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+
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41
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42
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+
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39
43
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unless entry.name.valid_encoding?
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40
44
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41
45
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entry.name.force_encoding case NKF.guess
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1
追記
test
CHANGED
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@@ -25,3 +25,45 @@
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25
25
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26
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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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28
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+
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29
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+
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32
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33
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```rb
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34
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35
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+
# NKFを用いた場合
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36
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+
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37
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+
require 'nkf'
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38
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+
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39
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+
unless entry.name.valid_encoding?
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40
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+
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41
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+
entry.name.force_encoding case NKF.guess
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42
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+
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43
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+
when NKF::EUC then 'euc-jp'
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44
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+
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45
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+
when NKF::SJIS then 'cp932'
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46
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+
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47
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when NKF::UTF8 then 'utf-8'
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48
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49
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when NKF::UTF16 then 'utf-16'
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50
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+
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51
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+
when Encoding::EUCJP_MS then Encoding::EUCJP_MS
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52
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53
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when Encoding::CP51932 then Encoding::CP51932
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54
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+
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55
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when Encoding::WINDOWS_31J then Encoding::WINDOWS_31J
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56
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57
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else
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58
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59
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# JISコードもしくは不明
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60
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+
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61
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raise "文字コードが想定外です"
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62
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63
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end
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64
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+
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65
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+
entry.name.encode! 'utf-8'
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66
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+
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67
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+
end
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68
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+
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69
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+
```
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