Rapira
Rapira is an educational procedural programming language developed in the Soviet Union and implemented on Agat computer, PDP-11 clones and Intel-8080/Z80 clones. It was an interpreted language with dynamic type system and high level constructions. The language originally had a Russian-based set of keywords, but English and Moldovan were added later. Also, it was more elegant and easier to use than existing Pascal implementations of the time.
Rapira was used in teaching computer programming in Soviet schools. The programming environment included a text editor and an integrated debugger.
Sample program:
ПРОЦ СТАРТ
ВЫВОД: 'Привет, мир!!!'
КОН ПРОЦ
The same, but using the English lexics :
proc start
output: 'Hello, world!!!';
end proc
Rapira's ideology was based on such languages as POP-2 and SETL, with strong influences from ALGOL.
Consequently, for example, Rapira implements a very strong, flexible and interesting data structure, so-named 'tuples'. Actually, tuples in Rapira are heterogeneous lists with such allowed operations as indexing, joining, length count, getting of sublist, easy comparison, etc.
