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[ruby/reline] Use UTF-8 only for width calc, rest uses original encoding

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I confirmed that libvterm supports only which are UTF-8, US ASCII, UK, and
DEC graphics by reading source code, so can't test this patch by
yamatanoorogi gem through vterm gem for now.

This fixes ruby/irb#190.

https://github.com/ruby/reline/commit/44596c0cc7
This commit is contained in:
aycabta 2021-02-18 03:41:47 +09:00
parent 38d30a6942
commit aeac4ddcc0
1 changed files with 3 additions and 2 deletions
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5
lib/reline/line_editor.rb
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@ -344,8 +344,9 @@ class Reline::LineEditor
else else
end_of_line_cursor = new_cursor_max end_of_line_cursor = new_cursor_max
end end
line_to_calc.encode(Encoding::UTF_8).grapheme_clusters.each do |gc| line_to_calc.grapheme_clusters.each do |gc|
mbchar_width = Reline::Unicode.get_mbchar_width(gc) mbchar = gc.encode(Encoding::UTF_8)
mbchar_width = Reline::Unicode.get_mbchar_width(mbchar)
now = new_cursor + mbchar_width now = new_cursor + mbchar_width
if now > end_of_line_cursor or now > cursor if now > end_of_line_cursor or now > cursor
break break