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[ruby/reline] Remove unused method

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(https://github.com/ruby/reline/pull/557)

`get_mbchar_byte_size_by_first_char` isn't used in Reline.
Also, this method implements the same functionality as `String#bytesize` and is unnecessary.
This commit is contained in:
ima1zumi 2023-06-23 02:07:19 +09:00 • committed by git
parent de51a4a13e
commit 218a8d8ef1
1 changed files with 0 additions and 20 deletions
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20
lib/reline/unicode.rb
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@ -41,26 +41,6 @@ class Reline::Unicode
OSC_REGEXP = /\e\]\d+(?:;[^;\a\e]+)*(?:\a|\e\\)/ OSC_REGEXP = /\e\]\d+(?:;[^;\a\e]+)*(?:\a|\e\\)/
WIDTH_SCANNER = /\G(?:(#{NON_PRINTING_START})|(#{NON_PRINTING_END})|(#{CSI_REGEXP})|(#{OSC_REGEXP})|(\X))/o WIDTH_SCANNER = /\G(?:(#{NON_PRINTING_START})|(#{NON_PRINTING_END})|(#{CSI_REGEXP})|(#{OSC_REGEXP})|(\X))/o
def self.get_mbchar_byte_size_by_first_char(c)
# Checks UTF-8 character byte size
case c.ord
# 0b0xxxxxxx
when ->(code) { (code ^ 0b10000000).allbits?(0b10000000) } then 1
# 0b110xxxxx
when ->(code) { (code ^ 0b00100000).allbits?(0b11100000) } then 2
# 0b1110xxxx
when ->(code) { (code ^ 0b00010000).allbits?(0b11110000) } then 3
# 0b11110xxx
when ->(code) { (code ^ 0b00001000).allbits?(0b11111000) } then 4
# 0b111110xx
when ->(code) { (code ^ 0b00000100).allbits?(0b11111100) } then 5
# 0b1111110x
when ->(code) { (code ^ 0b00000010).allbits?(0b11111110) } then 6
# successor of mbchar
else 0
end
end
def self.escape_for_print(str) def self.escape_for_print(str)
str.chars.map! { |gr| str.chars.map! { |gr|
escaped = EscapedPairs[gr.ord] escaped = EscapedPairs[gr.ord]