BS

Implementation of the BS language as created by Mark Rendle at BuildStuff.lt 2014

BS is a general purpose Gradually typed language which can and should be used for building absolutely everything absolutely all the time.

• BS Hates programmers
• Booby trapped aztec temple pit of fail
• Programs must be edited and saved using Microsoft Word (2003)
• Compiles to ECMAScript3

Watch the talk, recorded at SkillsMatter

##Example program

#define /^my (.*?) thing:$/class \1:/
my Greeter thing:
  public function __construct(€name)
      HALT_AND_CATCH_FIRE
    (unless €name !=== null);
    €this->name = €name;
    Delete €name;

  public function say(€thing isProbablyA String)
    echo €thing, « », €this->name, BS::EOL;
    Delete €thing;

##Language Features

• Significant whitespace
• Significant formatting
• 17 bit integers
• Variables must be prefixed by €
• Variable hoisting from all scopes
• Exception handling - BS has only one exception - HALT_AND_CATCH_FIRE
• Raise exceptions conditionally with (unless <condition>)
• String processing:
  • ' ' Single quotes for ASCII strings
  • '' '' Double single quotes for ANSI strings
  • " " Double quotes
  • "" "" Double double quotes
  • « » European quotes are used for UTF-256
  • «« »» Double european quotes used for UTF-256 with string interpolation
• Mandatory Comments - at the end of every line, demarked by 5 spaces
• Optionally end statements with ;
• unless statements must be terminated with ;
• Regex Aliasing - #define
• Line numbers are mandatory, and must increment in steps of 42