Menu
Is LALR(2) able to handle the dangling else case naturally (without any special rules, as with LALR(1))?
Thanks
707
The problem can also be solved by making explicit the link between an else and its if, within the syntax. This usually helps avoid human errors. Possible solutions are: Having an "end if" symbol delimiting the end of the if construct.
LALR Parser is Look Ahead LR Parser. It is intermediate in power between SLR and CLR parser. It is the compaction of CLR Parser, and hence tables obtained in this will be smaller than CLR Parsing Table. For constructing the LALR (1) parsing table, the canonical collection of LR (1) items is used.
Sometimes the programmer fails to initialize the pointer with a valid address, then this type of initialized pointer is known as a dangling pointer in C. Dangling pointer occurs at the time of the object destruction when the object is deleted or de-allocated from memory without modifying the value of the pointer.
An LALR(1) parser is an "upgraded" version of an LR(0) parser that keeps track of more precise information to disambiguate the grammar. An LR(1) parser is a significantly more powerful parser that keeps track of even more precise information than an LALR(1) parser.
No, the dangling else problem is an ambiguity, so no amount of lookahead helps.
93
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
