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This is a repo for my homework in Compiler Design, NCTU. It contains four directories. The lab is seperated into 4 parts, only hw4 is a complete work.

• HW1 contains only the lex scanner
• HW2 has the lex scanner and the parser by yacc
• HW3 is extended from HW2, a symbol table and the ability to find semantic error is added.
• HW4 is the complete work, compiles the code and generates java bytecode

The compiler is for the pascal-like P language.

• varible: integer, real. Supports global, local and constant varible
• loop: for, while
• I/O: print, read
• function: supports function define and invocation.
• expression: arithmetic, boolean expressions
• branch: if...else

• lex or flex
• yacc or bison
• java runtime
• gcc or clang to compile the compiler

Goto HW4

• Patterns is for full functionality test
• test is for small conponent test

Use bash ./compile_and_run [filename] to compile and run the code

for example: bash ./compile_and_run Patterns/general.p

This is a game of guessing a number

The code of the program

result