dasunpubudumal / lex-yacc

A simple Parser and a Lexical Analyzer using Lex (Flex) and Yacc (Bison)

lex-yacc

Description

A simple Lexical Analyzer and a Syntax Analyzer for the language C- defined as below.

(Figure 1)

(Figure 2)

• lexer.l is the Lexical Analyzer.
• parser.y is the Parser (Syntax Analyzer)
• lex.yy.c is the compiled file from lexer.l

To Run:

• Linux - Use ./compiler < testfile.c

In a need of compilation, run the makefile using make -f MAKEFILE (Linux).

lex-yacc's Issues

Single comment faliure

When a comment is included in a .c file and when we run it, the parser identifies it as a syntax error, which is not desirable. But when the comment is inside a function, it works fine.