class RuboCop::Cop::Naming::AsciiIdentifiers


FOÖ = “foo”
end
class Foö
# good
@example AsciiConstants: false
FOÖ = “foo”
end
class Foö
# bad
@example AsciiConstants: true (default)

params[:width_gteq]
# good<br><br>params # Arabic character (non-ascii)
# bad
height = 10
# good
신장 = 10 # Hangul character (non-ascii)
# bad
end
def say_hello
# good
end
def hello_🍣 # Emoji (non-ascii)
# bad
end
def こんにちはと言う # Japanese character (non-ascii)
# bad
end
def καλημερα # Greek alphabet (non-ascii)
# bad
@example
can be controlled using AsciiConstants config.
Identifiers are always checked and whether constants are checked
Checks for non-ascii characters in identifier and constant names.

def first_non_ascii_chars(string) 

def first_non_ascii_chars(string)
  string.match(/[^[:ascii:]]+/).to_s
end

def first_offense_range(identifier) 

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

def on_new_investigation 

def on_new_investigation
  processed_source.tokens.each do |token|
    next if !should_check?(token) || token.text.ascii_only?
    message = token.type == :tIDENTIFIER ? IDENTIFIER_MSG : CONSTANT_MSG
    add_offense(first_offense_range(token), message: message)
  end
end

def should_check?(token) 

def should_check?(token)
  token.type == :tIDENTIFIER || (token.type == :tCONSTANT && cop_config['AsciiConstants'])
end