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94 lines
3.6 KiB
Markdown
94 lines
3.6 KiB
Markdown
# Carp
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[](https://gitter.im/eriksvedang/Carp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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<img src="https://github.com/carp-lang/Carp/blob/master/img/carp_logo_300_c.png" alt="Logo" align="right" />
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<i>WARNING! This is a research project and a lot of information here might become outdated and misleading without any explanation. Don't use it for anything important!</i>
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<i>Update (June 26, 2017): The total rewrite is now live; if you want to look at the old version, it's under the branch named "c" in this repository.</i>
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## About
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Carp is a small programming language designed to work well for interactive and performance sensitive use cases like games, sound synthesis and visualizations.
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The key features of Carp are the following:
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* Automatic and deterministic memory management (no garbage collector or VM)
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* Inferred static types for great speed and reliability
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* Ownership tracking enables a functional programming style while still using mutation of cache-friendly data structures under the hood
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* No hidden performance penalties – allocation and copying are explicit
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* Straightforward integration with existing C code
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## Learn more
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* [Installation](docs/Install.md) - how to build the Carp compiler
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* [The Compiler Manual](docs/Manual.md) - how to compile code and configure your projects
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* [Carp Language Guide](docs/LanguageGuide.md) - syntax and semantics of the language
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* [Libraries](docs/Libraries.md) - the various libraries that come built into Carp
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* [Tooling](docs/Tooling.md) - supported editors
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* [Game Example](examples/game.carp) - an example of how to use SDL with Carp
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The Carp REPL has built-in documentation, run ```(help)``` to access it!
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## A Small Example
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```clojure
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(use IO)
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(use Int)
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(use String)
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(defn main []
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(do (println "~ The number guessing game ~")
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(print "Please enter a number between 1 - 99: ")
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(let [play true
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answer (random-between 1 100)]
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(while play
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(let [guess (get-line)
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num (from-string &guess)]
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(if (= &guess "q\n")
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(do
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(println "Good bye...")
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(set! &play false))
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(do
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(cond (< num answer) (println "Too low.")
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(> num answer) (println "Too high.")
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(println "Correct!"))
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(print "Please guess again: "))))))))
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```
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To build this example, save it to a file called 'example.carp' and load it with ```(load "example.carp")```, then execute ```(build)``` to build an executable, and ```(run)``` to start.
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### Language Designer & Lead Developer
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[Erik Svedäng](http://www.eriksvedang.com) ([@e_svedang](https://twitter.com/e_svedang))
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### Core Contributor
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[Veit Heller](http://veitheller.de) ([@hellerve](https://github.com/hellerve))
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### Contributors
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* Markus Gustavsson
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* Fyodor Shchukin
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* Anes Lihovac
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* Chris Hall
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* Tom Smeding
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* Dan Connolly
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* Reini Urban
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* Jonas Granquist
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Are you missing from the contributors list? Please send a pull request!
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## License
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Copyright 2016 - 2017 Erik Svedäng
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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