- 2017B4A70495P Manan Soni
- 2017B4A70549P Siddharth Singh
- 2017B4A70636P Nayan Khanna
- 2017B4A70740P Aditya Tulsyan
- Create executable (driver.exe):
make - Remove all unwanted files:
make clean
After running make run the driver file.
It takes a command line arguement of a valid filename which it will parse according to the assignment specifications.
Example: ./driver.exe t1.txt
- The grammar file we wrote is stored in
grammar.txt - Use the
generate_grammar.pyscript to convert this grammar into a machine readable format (machine_grammar.txt) along with generation of terminals, non-terminals and utility functions (to get and print grammar symbols). - The grammar parser is written in
read_grammar.cand the data structures for storing the grammar are ingrammar.h
- The tokenizer is written in
tokenizer.cand the data structures are defined intokenizer_structs.h
According to the assignment PDF, The Type Expression Table is expected to store the following:
- Field 1: The name of variable extracted from the declaration statement and to be used in the assignment statement.
- Field 2: The information about whether it is an array or not, if yes, then whether it is rectangular
array or a jagged array.
Use numbers enumerated values of 0, 1 and 2 for primitive data type, rectangular array and jagged array respectively.
The value 0 corresponds to integer, real and Boolean types. However, these primitive type details are filled in the fourth field
explicitly defining the integer, real or Boolean specifications appropriately. - Field 3: If the type is a rectangular array, then whether it is static or dynamic based on the typeof range parameters used in
defining the array type. If it is not a rectangular array this value is stored as “not_applicable”. - Field 4: type expression, which is implemented using the union data type.