style-gen.rb

require 'anystyle'
require 'citeproc/ruby'
require 'csl/styles'

# Load all dependent CSL styles and create a Renderer
# Those should be cached!
styles = CSL::Style.list.map { |id| CSL::Style.load id }.reject { |s| s.bibliography.nil? }
cp = CiteProc::Ruby::Renderer.new

# Parse a reference to CSL/JSON
input = 'Knuth, Donald. (1968). The art of computer programming (Vol. 1). Boston: Addison-Wesley.'
items = AnyStyle.parse(input, format: 'csl')

# Generate a output hash for every style
refs = Hash[styles.map { |s|
  # Convert the item for use with CiteProc
  item = CiteProc::CitationItem.new { |c| c.data = CiteProc::Item.new(items[0]) }
  
  # Render the item
  ref = cp.render item, s.bibliography
  
  # TODO compute Levenshtein distance to input (or similar)
  score = 0
  
  # Return style id and reference string and score
  [s.id, ref, score]
}]

FWIW, see https://github.com/GlobalNamesArchitecture/damerau-levenshtein