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[ruby/reline] Add comments about optimizing chars in ASCII range of UTF-8

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https://github.com/ruby/reline/commit/3c13d93486
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aycabta 2021-09-06 05:19:50 +09:00 committed by git
parent f831ecd8d5
commit 1fe604a675
1 changed files with 2 additions and 2 deletions
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4
lib/reline/unicode.rb
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@ -101,9 +101,9 @@ class Reline::Unicode
def self.get_mbchar_width(mbchar) def self.get_mbchar_width(mbchar)
ord = mbchar.ord ord = mbchar.ord
if (0x00 <= ord and ord <= 0x1F) if (0x00 <= ord and ord <= 0x1F) # in EscapedPairs
return 2 return 2
elsif (0x20 <= ord and ord <= 0x7E) elsif (0x20 <= ord and ord <= 0x7E) # printable ASCII chars
return 1 return 1
end end
m = mbchar.encode(Encoding::UTF_8).match(MBCharWidthRE) m = mbchar.encode(Encoding::UTF_8).match(MBCharWidthRE)