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Remove \1 and \2 that escape CSI before render

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This commit is contained in:
aycabta 2019-05-27 05:01:04 +09:00
parent c6b7cad5c9
commit 64dc21830a
1 changed files with 4 additions and 0 deletions
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4
lib/reline/line_editor.rb
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@ -81,6 +81,7 @@ class Reline::LineEditor
MenuInfo = Struct.new('MenuInfo', :target, :list)
CSI_REGEXP = /\e\[(?:\d+;?)*[ABCDEFGHJKSTfminsuhl]/
NON_PRINTING_ESCAPES = "\1\2"
def initialize(config)
@config = config
@ -164,6 +165,8 @@ class Reline::LineEditor
lines = [String.new(encoding: @encoding)]
height = 1
width = 0
prompt = prompt.tr(NON_PRINTING_ESCAPES, '')
str = str.tr(NON_PRINTING_ESCAPES, '')
rest = "#{prompt}#{str}".encode(Encoding::UTF_8)
loop do
break if rest.empty?
@ -803,6 +806,7 @@ class Reline::LineEditor
private def calculate_width(str, allow_csi = false)
if allow_csi
str = str.gsub(CSI_REGEXP, '')
str = str.tr(NON_PRINTING_ESCAPES, '')
end
str.encode(Encoding::UTF_8).grapheme_clusters.inject(0) { |width, gc|
width + Reline::Unicode.get_mbchar_width(gc)