diff options
| author | aycabta <[email protected]> | 2021-12-23 23:08:37 +0900 |
|---|---|---|
| committer | git <[email protected]> | 2021-12-24 00:51:47 +0900 |
| commit | 726cc8122e5abb17a2af156e83ac88c1e4e9a42e (patch) | |
| tree | 4d19869e9c2abf8631e56e0f10195c649180fdcc /lib/reline/unicode.rb | |
| parent | daf4a8884b36f44127fca9d0502080b32eda7f03 (diff) | |
[ruby/reline] "Halfwidth char + halfwidth (han)dakuten" is a single grapheme.
When a halfwidth character is followed by a halfwidth dakuten or a
halfwidth handakuten character, it should be treated as a single
grapheme.
https://github.com/ruby/reline/commit/9f20b9ec28
Diffstat (limited to 'lib/reline/unicode.rb')
| -rw-r--r-- | lib/reline/unicode.rb | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/reline/unicode.rb b/lib/reline/unicode.rb index 80cc54a05e..6000c9f82a 100644 --- a/lib/reline/unicode.rb +++ b/lib/reline/unicode.rb @@ -79,6 +79,8 @@ class Reline::Unicode require 'reline/unicode/east_asian_width' + HalfwidthDakutenHandakuten = /[\u{FF9E}\u{FF9F}]/ + MBCharWidthRE = / (?<width_2_1> [#{ EscapedChars.map {|c| "\\x%02x" % c.ord }.join }] (?# ^ + char, such as ^M, ^H, ^[, ...) @@ -93,6 +95,12 @@ class Reline::Unicode #{ EastAsianWidth::TYPE_H } | #{ EastAsianWidth::TYPE_NA } | #{ EastAsianWidth::TYPE_N } + )(?!#{ HalfwidthDakutenHandakuten }) + | (?<width_2_3> + (?: #{ EastAsianWidth::TYPE_H } + | #{ EastAsianWidth::TYPE_NA } + | #{ EastAsianWidth::TYPE_N }) + #{ HalfwidthDakutenHandakuten } ) | (?<ambiguous_width> #{EastAsianWidth::TYPE_A} @@ -109,7 +117,7 @@ class Reline::Unicode m = mbchar.encode(Encoding::UTF_8).match(MBCharWidthRE) case when m.nil? then 1 # TODO should be U+FFFD � REPLACEMENT CHARACTER - when m[:width_2_1], m[:width_2_2] then 2 + when m[:width_2_1], m[:width_2_2], m[:width_2_3] then 2 when m[:width_3] then 3 when m[:width_0] then 0 when m[:width_1] then 1 |