PARSER/SYNTACTIC ANALYSIS

Workflow:

1. Compile the script using Yacc tool.
   $ yacc -d parser.y

2. Compile the flex script using Flex tool.
   $ flex lexer.l

3. After compiling the lex file, lex.yy.c file is generated. Also, y.tab.c and y.tab.h files are generated after compiling the yacc script. \

4. Compilation is done with the options –ll, –ly and -w.
   $ gcc -o compiler lex.yy.c y.tab.h y.tab.c -ll -ly

5. The executable file is generated, which on running parses the C file given as a command line input.
   $ ./a.out test1.c