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blang

Bruce's language (a defunct programming language prototype)

  • language
Code 6.8K linesMoonScript 4.2KBL 1.4KC 841BP 235Makefile 22Dotfile 4
Docs 2.8K wordsMarkdown 2.5KText 309
Binary data 20.4 KiBOther 20.4 KiB
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README.md

Blang

Blang is a small, statically typed, garbage-collected, compiled imperative language with ergonomic syntax. It uses QBE as a backend IR, and compiles from there to assembly code and then to a binary.

Example

def sing_bottles_song(n:Int)
    for i in n..0
        when i is 0
            say "No more bottles of beer on the wall! :("
        is 1
            say "One last bottle of beer on the wall"
        else
            say "$i bottles of beer on the wall"
    between
        say "Take one down, pass it around... "


sing_bottles_song 99

See test/*.bl for more examples.

Language Features

See features.md for writeups of some of the features in blang. These include:

  • Type-safe DSL strings
  • Units of measure
  • Better loops
  • Ergonomic optional typing
  • Memory safety (GC and automatic array bounds checking)
  • Percentages

Dependencies

The Blang compiler is written in Moonscript, uses QBE as a backend, before being compiled from assembly with your assembler of choice. Blang uses the following libraries:

  • Garbage collection: Boehm garbage collector
    • Available from your package manager of choice: pacman -S gc
  • Parsing and string pattern matching: bp
    • Install via git clone https://github.com/bruce-hill/bp/ && cd bp && make && sudo make install-lib
  • Hash maps: bhash
    • Install via git clone https://github.com/bruce-hill/bhash/ && cd bhash && make && sudo make install
  • String interning: intern
    • Install via git clone https://github.com/bruce-hill/intern/ && cd intern && make && sudo make install

Usage

Once the necessary dependencies are installed, you can use ./blang your-file.bl to run a file directly or ./blangc your-file.bl to compile it into a binary called your-file.o. See blang --help and blangc --help for full usage info.

License

Blang is released under the MIT license with the Commons Clause, see LICENSE for full details.