Prism.languages.prolog = {
  comment: { pattern: /\/\*[\s\S]*?\*\/|%.*/, greedy: !0 },
  string: {
    pattern: /(["'])(?:\1\1|\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1(?!\1)/,
    greedy: !0,
  },
  builtin: /\b(?:fx|fy|xf[xy]?|yfx?)\b/,
  function: /\b[a-z]\w*(?:(?=\()|\/\d+)/,
  number: /\b\d+(?:\.\d*)?/,
  operator: /[:\\=><\-?*@\/;+^|!$.]+|\b(?:is|mod|not|xor)\b/,
  punctuation: /[(){}\[\],]/,
};