Writing a Verified Postfix Expression Calculator in Ada/SPARK

pyjarrett.github.io

cross-posted to:
[email protected]

Writing a Verified Postfix Expression Calculator in Ada/SPARK

pyjarrett.github.io

AndyM to

Concatenative ProgrammingEnglish · 1 month ago

cross-posted to:
[email protected]

A venture in writing a larger SPARK project.

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Concatenative Programming

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Hello!

This space is for sharing news, experiences, announcements, questions, showcases, etc. regarding concatenative programming concepts and tools.

We’ll also take any programming described as:

pipelined
stack-oriented
tacit
postfix / reverse Polish notation (RPN)
fluent
cascading
chained

From Wikipedia:

A concatenative programming language is a point-free computer programming language in which all expressions denote functions, and the juxtaposition of expressions denotes function composition. Concatenative programming replaces function application, which is common in other programming styles, with function composition as the default way to build subroutines.

For example, a sequence of operations in an applicative language like the following:

y = foo(x)
z = bar(y)
w = baz(z)

…is written in a concatenative language as a sequence of functions:

x foo bar baz

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