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Itera
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Itera is a Markov algorithm based Esoteric programming language. It uses a similar grammar to Thue. Unlike Thue, it is deterministic. The substitution rules are represented as
substring::=substitution
input is defined as:
substring::=?
when executed, the substring is substituted with the input string.
output is defined as:
substring::=!
when executed, the substring is printed onto the screen.
when an Itera program is started, it asks the user for input. The user input becomes the string that Itera uses.
Here is an example program that converts unary into Roman numerals
1::=I IIIII::=V IIII::=IV VV::=X VIV::=IX XXXXX::=L XXXX::=XL LL::=C LXL::=XC CCCCC::=D CCCC::=CD DD::=M DCD::=CM