https://github.com/matz/streem

prototype of stream based programming language
https://github.com/matz/streem

Last synced: 3 months ago
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prototype of stream based programming language

• Host: GitHub
• URL: https://github.com/matz/streem
• Owner: matz
• License: mit
• Created: 2014-12-11T08:07:50.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2022-01-03T10:45:02.000Z (about 3 years ago)
• Last Synced: 2024-05-02T00:54:23.331Z (9 months ago)
• Language: C
• Size: 821 KB
• Stars: 4,596
• Watchers: 360
• Forks: 237
• Open Issues: 25
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: CODEOWNERS

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README

        
# Streem

[![Build Status](https://github.com/matz/streem/workflows/ci/badge.svg)](https://github.com/matz/streem/actions?query=workflow%3Aci)

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Streem is a stream based concurrent scripting language. It is based on a

programming model similar to the shell, with influences from Ruby, Erlang, and

other functional programming languages.

__Note:__ Streem is still in the design stage. It's not working yet. Stay tuned.

## Compiling

### Installing dependencies

* bison

* flex

* gcc / clang

### Run make

```shell

make

```

## Examples

In Streem, a simple `cat` program looks like this:

```

stdin | stdout

```

You can try it out by (firstly `cd` to streem top directory):

```shell

$ bin/streem -e 'stdin | stdout'

```

or

```shell

$ bin/streem examples/01cat.strm

```

Streem is a (sort of) DSL for data flows. Above code means

building data-flow connection between `stdin` and `stdout`.

Actual data processing will be done in the event loop

invoked after program execution.

For another example, a simple FizzBuzz will look like this:

```

# seq(100) returns a stream of numbers from 1 to 100.

# A function object in pipeline works as a map function.

# stdout is an output destination.

seq(100) | map{x->

  if (x % 15 == 0)     "FizzBuzz"

  else if (x % 3 == 0) "Fizz"

  else if (x % 5 == 0) "Buzz"

  else                 x

} | stdout

```

The second part in the pipeline (`{x ->...}`) is a function

object. If a function object is connected in the pipeline,

it will be invoked for each element in the stream.

There are more examples under folder `examples/`. Just play with them!

## Contributing

Send a pull request to .  We consider

you have granted non-exclusive right to your contributed code under

MIT license. Use  for

discussion.

## License

MIT license (© 2015-2016 Yukihiro Matsumoto)