https://github.com/furkanonder/pytiny-c

A Tiny-C language compiler, rewritten in Python
https://github.com/furkanonder/pytiny-c

compiler tiny-c

Last synced: about 1 month ago
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A Tiny-C language compiler, rewritten in Python

• Host: GitHub
• URL: https://github.com/furkanonder/pytiny-c
• Owner: furkanonder
• License: gpl-3.0
• Created: 2024-11-15T21:11:45.000Z (about 2 months ago)
• Default Branch: main
• Last Pushed: 2024-11-15T21:14:57.000Z (about 2 months ago)
• Last Synced: 2024-11-27T06:07:16.905Z (about 1 month ago)
• Topics: compiler, tiny-c
• Language: Python
• Homepage:
• Size: 14.6 KB
• Stars: 10
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# PyTiny-C

A Tiny-C language compiler, rewritten in Python(It has been converted from C to Python with as much one-to-one

correlation as possible). 

Tiny-C is a considerably stripped down version of C and it is meant as a pedagogical tool for learning about compilers.

The integer global variables "a" to "z" are predefined and initialized to zero, and it is not possible to declare new

variables.  The compiler reads the program from standard input and prints out the value of the variables that are not

zero.

The grammar of Tiny-C in EBNF is:

```ebnf

 ::= 

 ::= "if"   |

                "if"   "else"  |

                "while"   |

                "do"  "while"  ";" |

                "{" {  } "}" |

                 ";" |

                ";"

 ::= "("  ")"

 ::=  |  "=" 

 ::=  |  "<" 

 ::=  |  "+"  |  "-" 

 ::=  |  | 

 ::= "a" | "b" | "c" | "d" | ... | "z"

 ::= 

```

Here are a few invocations of the compiler:

```sh

$ echo "a=b=c=2<3;" | python tinyc.py

a = 1

b = 1

c = 1

$ echo "{ i=1; while (i<100) i=i+i; }" | python tinyc.py

i = 128

$ echo "{ i=125; j=100; while (i-j) if (i