Class: GuardrailsRuby::Redactors::KeywordRedactor

Inherits:
Object
  • Object
show all
Defined in:
lib/guardrails_ruby/redactors/keyword_redactor.rb

Instance Method Summary collapse

Constructor Details

#initialize(keywords, replacement: "[REDACTED]") ⇒ KeywordRedactor

Initialize with a list of keywords to redact.

redactor = KeywordRedactor.new(%w[secret password], replacement: "[HIDDEN]")
redactor.redact("The secret password is abc123")
# => "The [HIDDEN] [HIDDEN] is abc123"


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# File 'lib/guardrails_ruby/redactors/keyword_redactor.rb', line 12

def initialize(keywords, replacement: "[REDACTED]")
  @keywords = keywords
  @replacement = replacement
end

Instance Method Details

#detect(text) ⇒ Object

Detect which keywords are present in text. Returns an array of matched keywords.



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# File 'lib/guardrails_ruby/redactors/keyword_redactor.rb', line 28

def detect(text)
  @keywords.select { |kw| text.match?(/\b#{Regexp.escape(kw)}\b/i) }
end

#redact(text) ⇒ Object

Redact all occurrences of the configured keywords from text (case-insensitive). Uses word boundary matching to avoid partial-word replacements.



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# File 'lib/guardrails_ruby/redactors/keyword_redactor.rb', line 19

def redact(text)
  result = text.dup
  @keywords.each do |kw|
    result.gsub!(/\b#{Regexp.escape(kw)}\b/i, @replacement)
  end
  result
end