syaffers / fixer

Crappy program to convert infix/postfix/prefix strings to their counterparts

fixer

Crappy program to convert infix/postfix/prefix strings to their counterparts. Written in plain ANSI C using a stack and bunch of pointers and the likes. This is written as an exercise just so I can sharpen my more-than-rusty C therefore it's probably not well optimized. Hey, we all grow old okay?

Basically it converts:

• Infix to Postfix or Prefix or both
• Postfix to Prefix or Infix or both
• Prefix to Postfix or Infix or... you get it

Not really done yet so don't hold your breath. The program can convert strings from an input file (reading line-by-line) or via the stdin. Up to you.

Usage

Compiling

Super easy:

gcc expr.c -o <output filename>

e.g.

gcc expr.c -o expr

Running

Even easier:

./<output filename>

e.g.

./expr

You have an option to choose a file during the program runtime. Don't worry.

Important Files

• expr: The compiled program. Compiled in Ubuntu 14.04, recompile from the origin expr.c for best results.
• expr.c: The source code for the program. Where the magic happens.
• input.txt: The file that stores all the read lines from stdin in "console mode"
• output.txt: The file that stores the output for uses in "console mode"