So, we'll go no more a roving So, we'll go no more a roving "So, we'll go no more a roving" is a poem, written by (George Gordon) Lord Byron (1788–1824), and included in a letter to Thomas Moore on 28 February 1817. Moore published the poem in 1830 as part of "Letters and Journals of Lord Byron". It evocatively describes the fatigue of age conquering the restlessness of youth. Byron wrote the poem at the age of twenty-nine. In the letter to Thomas Moore, the poem is preceded by an account of its genesis. "At present, I am on the invalid regimen myself. The Carnival--that is,
LL parser all context-free languages. The LL(1) languages are a proper subset of the LR(1) languages which in turn are a proper subset of all context-free languages. In order for a CFG to be an LL(1) grammar, certain conflicts must not arise, which we describe in this section. Let A be a non-terminal. FIRST(A) is (defined to be) the set of terminals that can appear in the first position of any string derived from A. FOLLOW(A) is the union over FIRST(B) where B is any non-terminal that immediately follows A in the right hand side of a production rule. There are 2