Maintained by Kevin Angstadt

Snail (Strings Numbers Arrays and Inheritance Language) is a dynamically typed, expression-based, object-oriented programming language that is simple enough to be implemented in a one-semester course.

Version 1.0.1 Released

Version 1.0.1 of snail has been released. This version contains minor bug fixes as described below. You can download a copy from the Downloads page.

[v1.0.1] - 2022-02-21

Changed

  • Error messages no longer begin with a blank line

Fixed

  • Parsing error messages now end in a newline
  • Column positions for string literals should now be reported correctly
  • \\ now allowed in string literals as last characters before double quote
  • There is now a lexer error message if an integer literal is invalid
  • Don’t crash if an sl-lex file cannot be parsed
  • Equals expressions are now handled consistently for generating and reading sl-ast files
  • Integer literals are now parsed correctly from sl-ast files
  • Don’t crash if an sl-ast file cannot be parsed
  • Error checking for String.substr now more exhaustive to catch corner cases
  • IO.print_string and IO.print_int flush stdout after outputting
  • Don’t crash on an unknown command line option (and handle -h)

Updated: