Sedust

What is this?

Sed written in Rust.

More than that, this is an opportunity for me to learn Rust. Eventually I want this implementation of sed to be fairly complete, whatever that means. My goal is not to create a faster or more feature-rich version of sed, though I may someday explore some optimizations.

Is it done yet?

Nope! Heck, I haven't even implemented the s command yet or regex addresses, which are arguably the most used features of sed. So here's what's ipmlemented so far:

• Numerical addresses
• Command line switches
  • -e (only one)
  • -n
• Commands
  • a
  • c
  • d
  • g and G
  • h and H
  • i
  • p and P
  • q
  • r
  • w
  • x
  • =
  • comments (#)
• Handles multiple input files
• Only one script can be specified (i.e. no ; or script files)

Here's what still needs done (a lot!):

• Command line switches
  • -e (allow multiple)
  • -f
• Regex addresses
• Improved script parsing to handle multiple scripts
  • For example, sedust cannot yet handle 'n;n;s/./X' since this is three scripts separated by semi-colons
• Commands
  • b
  • D
  • l
  • n and N
  • s
  • t
  • y
  • :

The Master Plan

This is not a shining example of Rust code. This is my first Rust project and it's probably going to look ugly along the way (this has had no code reviews to date). My goal is to slowly but surely address the todo's listed above, create good test coverage, and then once everything is working and correct, make the code more idiomatic.