查看文章

Compiler development has been one of the leading computer research subjects. This field of study aims to understand the link between computer systems and computer languages. Compilers are used to translate code from a high-level programming language into machine code. This process consists of essentially six phases. Analysis of syntax is the second step of compilation. As input to a syntax analyzer, lexical analyzer-generated tokens are used. Syntax analyzers do parsing. Parsing is used to derive a string from a given grammar via the process of derivation. There are essentially two parsing algorithms, called top-down and bottom-up parsing. The four forms of bottom-up parsing LR (Left-To-Right) parsing strategies include Simple LR (SLR), Canonical LR (CLR), Look Ahead LR (LALR), and LR (1). In addition, LR Parsers are mostly used to parse a variety of context-free grammar. This approach is referred …