{      className: 'string',      begin: '`', end: '`',      contains: ['escape']    },    // variable    {      className: 'variable',      begin: '\\$\\d', end: '^',      relevance: 5    },    {      className: 'variable',      begin: '[\\$\\%\\@\\*](\\^\\w\\b|#\\w+|[^\\s\\w{]|{\\w+}|\\w+)', end: '^'    },    // array, $a[3] = {"a","b","c"}, $b[3] = {1,2,3}    // vector, $test = <<3.0, 7.7, 9.1>>    // matrix, matrix $a3[3][4] = <<2.5, 4.5, 3.25, 8.05; ... >>    // param, -name ... -radius ...    // operator, () [] ! ++ -- * / % ^ + - < <= > >= == != && || ? : = += -= *= /=    // comment    hljs.C_LINE_COMMENT_MODE,    hljs.C_BLOCK_COMMENT_MODE  ]}