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Simple encoding function

A simple encoding function demonstration in several programming languages.

Photo by Jimmy Dean on Unsplash

So while I’m learning Haskell, I would try to write a simple encoding function then decode it back. Then add some more examples in other languages such as Scala, or Python.

Some explanations:

• ord function show us the offset of the character in Unicode
• chr function convert from offset to actually character
• The function take an offset integer, and the needed encode string to convert

Example running

ghci> encode 3 "I love you" 
"L#oryh#|rx"

Scala example

We define the string we want to encode, then we iterate each character in the string and convert to character with index is +3.

Running this show the result the same

L#oryh#|rx

And the last is example for Python

Running this show encoded string

L#oryh#|rx

Happy learning ~~

REFERENCES

Learn you a great haskell

Python Programming/Text - Wikibooks, open books for an open world

How to process a Scala String one character at a time (with map, for, and foreach)