Class: Kotoshu::Languages::Portuguese::GrammarRules::CraseRule

Inherits:
Rule
  • Object
show all
Defined in:
lib/kotoshu/languages/pt/language.rb

Overview

Rule: Crase (à vs a)

Instance Attribute Summary

Attributes inherited from Rule

#description, #id, #name

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CraseRule

Returns a new instance of CraseRule.



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# File 'lib/kotoshu/languages/pt/language.rb', line 279

def initialize
  super('PT_CRASE', 'Crase Usage', 'Use crase (à) before feminine nouns indicating place/time.')
end

Instance Method Details

#check(tokens) ⇒ Object 



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# File 'lib/kotoshu/languages/pt/language.rb', line 283

def check(tokens)
  errors = []
  tokens.each_cons(2) do |prev_token, current_token|
    prev_word = prev_token[:token]&.downcase
    next unless %w[a ema].include?(prev_word)

    # Check if next word starts with 'a' sound and is feminine
    next_word = current_token[:token]
    next if next_word.nil? || next_word.empty?

    if next_word&.match?(/^[aáãâä]/i)
      # Suggest using crase
      errors << {
        rule_id: @id,
        position: prev_token[:position],
        message: "Possible crase usage needed: '#{prev_word}' -> 'à'",
        suggestion: 'à',
        context: "#{prev_word} #{next_word}",
        suggestions: ['à']
      }
    end
  end
  errors
end