class RuboCop::Cop::Naming::AsciiIdentifiers
This cop checks for non-ascii characters in identifier names.
@example
# bad def καλημερα # Greek alphabet (non-ascii) end # bad def こんにちはと言う # Japanese character (non-ascii) end # bad def hello_🍣 # Emoji (non-ascii) end # good def say_hello end # bad 신장 = 10 # Hangul character (non-ascii) # good height = 10 # bad params[:عرض_gteq] # Arabic character (non-ascii) # good params[:width_gteq]
Constants
- MSG
Public Instance Methods
investigate(processed_source)
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# File lib/rubocop/cop/naming/ascii_identifiers.rb, line 44 def investigate(processed_source) processed_source.each_token do |token| next unless token.type == :tIDENTIFIER && !token.text.ascii_only? add_offense(token, location: first_offense_range(token)) end end
Private Instance Methods
first_non_ascii_chars(string)
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# File lib/rubocop/cop/naming/ascii_identifiers.rb, line 65 def first_non_ascii_chars(string) string.match(/[^[:ascii:]]+/).to_s end
first_offense_range(identifier)
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# File lib/rubocop/cop/naming/ascii_identifiers.rb, line 54 def first_offense_range(identifier) expression = identifier.pos first_offense = first_non_ascii_chars(identifier.text) start_position = expression.begin_pos + identifier.text.index(first_offense) end_position = start_position + first_offense.length range_between(start_position, end_position) end