Class: ToonFormat::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/toon_format/parser.rb

Overview

Parses TOON format strings into Ruby objects

Instance Method Summary collapse

Constructor Details

#initialize(input, strict: true) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/toon_format/parser.rb', line 6

def initialize(input, strict: true)
  @input = input
  @lines = input.split("\n")
  @position = 0
  @strict = strict
end

Instance Method Details

#looks_like_root_object? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/toon_format/parser.rb', line 24

def looks_like_root_object?
  # If we have multiple lines and they all look like key-value pairs at the same indent level
  return false if @lines.size < 2

  @lines.all? do |line|
    line.strip.empty? || line =~ KEY_VALUE_PATTERN || line =~ KEY_ONLY_PATTERN
  end
end

#parse ⇒ Object 



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# File 'lib/toon_format/parser.rb', line 13

def parse
  return nil if @lines.empty?

  # Check if the entire input is an object (multiple key-value pairs at root level)
  if looks_like_root_object?
    parse_root_object
  else
    parse_value
  end
end

#parse_root_object ⇒ Object 



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# File 'lib/toon_format/parser.rb', line 33

def parse_root_object
  result = {}

  while current_line
    line = current_line

    if line.strip.empty?
      advance
      next
    end

    if line =~ KEY_VALUE_PATTERN
      key = ::Regexp.last_match(1)
      value_str = ::Regexp.last_match(2).strip
      advance
      # Check if value is an empty array or empty object
      value = if value_str == "[]"
                []
              elsif value_str == "{}"
                {}
              else
                parse_primitive(value_str)
              end
      result[key.to_sym] = value
    elsif line =~ KEY_ONLY_PATTERN
      key = ::Regexp.last_match(1)
      advance
      result[key.to_sym] = parse_nested_value
    else
      break
    end
  end

  result
end