Prism.languages.parigp = { 'comment': /\/\*[\s\S]*?\*\/|\\\\.*/, 'string': /"(?:[^"\\]|\\.)*"/, // PARI/GP does not care about white spaces at all // so let's process the keywords to build an appropriate regexp // (e.g. "b *r *e *a *k", etc.) 'keyword': (function () { var keywords = [ 'breakpoint', 'break', 'dbg_down', 'dbg_err', 'dbg_up', 'dbg_x', 'forcomposite', 'fordiv', 'forell', 'forpart', 'forprime', 'forstep', 'forsubgroup', 'forvec', 'for', 'iferr', 'if', 'local', 'my', 'next', 'return', 'until', 'while' ]; keywords = keywords.map(function (keyword) { return keyword.split('').join(' *'); }).join('|'); return RegExp('\\b(?:' + keywords + ')\\b'); }()), 'function': /\w[\w ]*?(?= *\()/, 'number': { // The lookbehind and the negative lookahead prevent from breaking the .. operator pattern: /((?:\. *\. *)?)(?:\d(?: *\d)*(?: *(?!\. *\.)\.(?: *\d)*)?|\. *\d(?: *\d)*)(?: *e *[+-]? *\d(?: *\d)*)?/i, lookbehind: true }, 'operator': /\. *\.|[*\/!](?: *=)?|%(?: *=|(?: *#)?(?: *')*)?|\+(?: *[+=])?|-(?: *[-=>])?|<(?:(?: *<)?(?: *=)?| *>)?|>(?: *>)?(?: *=)?|=(?: *=){0,2}|\\(?: *\/)?(?: *=)?|&(?: *&)?|\| *\||['#~^]/, 'punctuation': /[\[\]{}().,:;|]/ };