Module: TWFilter::Checks::Erhua

Defined in:
lib/twfilter/checks/erhua.rb,
sig/twfilter.rbs

Constant Summary collapse

NAME =

Returns:

  • (::Symbol) 
:erhua
MARK =

兒 is a root morpheme inside a headed or tailed window, and an erhua suffix elsewhere.

Returns:

  • (::String) 
"兒"

Class Method Summary collapse

Class Method Details

.call(subject) ⇒ ::Array[Finding]

Parameters:

Returns:



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# File 'lib/twfilter/checks/erhua.rb', line 11

def call(subject)
  offender = offender(subject.text)
  return [] if offender.nil?

  [Finding.new(check: NAME, code: :erhua, detail: offender)]
end

.headed ⇒ ::Set[::String]

Returns:

  • (::Set[::String]) 


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# File 'lib/twfilter/checks/erhua.rb', line 34

def headed = Tables.set("erhua_headed.txt")

.offender(text) ⇒ ::String?

Parameters:

  • (::String)

Returns:

  • (::String, nil) 


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# File 'lib/twfilter/checks/erhua.rb', line 18

def offender(text)
  return nil if text == MARK

  position = 0
  while (position = text.index(MARK, position))
    after = text[position, 2]
    before = position.positive? ? text[position - 1, 2] : nil

    return before || MARK unless headed.include?(after) || tailed.include?(before)

    position += 1
  end

  nil
end

.tailed ⇒ ::Set[::String]

Returns:

  • (::Set[::String]) 


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# File 'lib/twfilter/checks/erhua.rb', line 36

def tailed = Tables.set("erhua_tailed.txt")