So, we'll go no more a roving the latter part of it, and sitting up late o' nights--had knocked me up a little. But it is over--and it is now Lent, with all its abstinence and sacred music... Though I did not dissipate much upon the whole, yet I find 'the sword wearing out the scabbard,' though I have but just turned the corner of twenty nine." The poem seems to have been suggested in part by the refrain of a Scottish song known as "The Jolly Beggar." The Jolly Beggar was published in Herd's "Scots Songs" in 1776, 41 years before Byron's letter, and goes partially
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