A Review on LL (1) Parser
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 11
Abstract
In any programming language, parsing is performed after scanning each and every lexical unit of the program. Lexical unit of PL domain is any keyword, identifier, constant, operator, etc. Once all the units have been identified parsing is performed. Parser checks the syntax of each and statement of PL. If the syntax is found correct, the parser generates parse trees. LL (1) parsing is a top down parsing technique. LL (1) parser constructs table and based on the entry in the table it chooses the production on right hand side of the non-terminal. Error is generated if the entry in the table is found blank. If the entry is blank the parser has no option to replace the Non terminal with the production rule which means the given string is invalid.
Authors and Affiliations
Faraah M. Dabhoiwala
Keywords
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