advent-of-code-ocr

"OCR" letter recognition for Advent of Code puzzles, compatible with all puzzles from 2015 to 2019. Also comes with a handy command line utility to parse the ASCII art directly from stdin:

$ cat abc.txt
.##..###...##.
#..#.#..#.#..#
#..#.###..#...
####.#..#.#...
#..#.#..#.#..#
#..#.###...##.
$ cat abc.txt | advent-of-code-ocr
ABC

Installation

To use as a library, add advent-of-code-ocr as a hackage dependency like you would any other.

To use as an executable:

# using stack
stack install advent-of-code-ocr
# using cabal
cabal install advent-of-code-ocr
# from source
git clone https://github.com/mstksg/advent-of-code-ocr
cd advent-of-code-ocr
cabal install     # or stack install

Compatibility

Should be compatible with all challenges from 2015 to 2019. However, I have only tested it with:

• 2016 Day 8
• 2018 Day 10
• 2019 Day 8
• 2019 Day 11

And it is possible I have missed some. If you notice any I am missing, please let me know!