Prism.languages.arff = { 'comment': /%.*/, 'string': { pattern: /(["'])(?:\\.|(?!\1)[^\\\r\n])*\1/, greedy: true }, 'keyword': /@(?:attribute|data|end|relation)\b/i, 'number': /\b\d+(?:\.\d+)?\b/, 'punctuation': /[{},]/ };