my compression alg

this works with any symbol set.

set aside four symbols, let's use \:;|

\ is the escape character

\\ turns to \ 

\: turns to :

\; turns to ;

\| turns to |

the first part is a "dictionary"

q:oo;r:are|bqks r cql

this encodes "books are cool"

shorthands CANNOT contain \:;|

first we interpret q:oo;

replace every q after the | with oo

then we interpret r:are|

replace ever r after the | with are

the escape character also works with escaping these shorthands, but we need to encase the end with : like this

q:oo;r:are|bqks a\r:e cql

the order matters, so we can do something like this

a:bd;b:bc|a

this would turn a into bd into bcd

but this

b:bc;a:bd|a

would turn a into bd and not into bcd