Module: OllamaAgent::LLM::FirstJsonObject

Defined in:
lib/ollama_agent/llm/first_json_object.rb

Overview

Finds the first top-level balanced ‘{ … }` slice, respecting string escapes.

Class Method Summary collapse

Class Method Details

.extract(text) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/PerceivedComplexity – brace depth + string escape scanner



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# File 'lib/ollama_agent/llm/first_json_object.rb', line 10

def extract(text)
  start_idx = text.index("{")
  return nil unless start_idx

  depth = 0
  in_string = false
  escape = false
  (start_idx...text.length).each do |i|
    c = text[i]
    if in_string
      if escape
        escape = false
      elsif c == "\\"
        escape = true
      elsif c == '"'
        in_string = false
      end
    elsif c == '"'
      in_string = true
    elsif c == "{"
      depth += 1
    elsif c == "}"
      depth -= 1
      return text[start_idx..i] if depth.zero?
    end
  end
  nil
end