SLR(1) parsing is a hack of LR(0) parsing: you attempt to construct a LR(0) parser for it, and if there are only minor glitches, you slap on some extra control. Because these parsing processes are rather complex, it's a lot of work to check if a grammar is LR(k),SLR(1) or...
G Size (G) Mossin LR 7PS-LR SLR [G.sub.1] 24 1608 652 1236 491 [G.sub.2] 48 3751 2070 2999 1197 [G.sub.3] 123 6181 5870 7294 2700 The LALR method uses a more precise method of computing the lookahead, but also works by decorating an LR(0) parser [DeRemer 1969]. Unfortun...
Shift Reduce Parser is a type of Bottom-Up Parser. It generates the Parse Tree from Leaves to the Root. In Shift Reduce Parser, the input string will be reduced to the starting symbol. This reduction can be produced by handling the rightmost derivation in reverse, i.e., from starting sym...