Abstract Programming Language

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0.1.16 (13.08.2024)

• Added strings and the import keyword. Currently, strings are used only to specify the path after the import keyword. The import keyword allows you to execute code from a file at the specified path using the current interpreter.

  ../Test.apl

   Write(AnyVariable);

  Main.apl

   data AnyVariable: 3;
   import "../Test.apl";

• Added the ability to specify paths as interpreter launch arguments, thereby importing other scripts immediately upon execution.

   APL.exe ../Test1.apl ../Test2.apl
  

0.1.15 (03.08.2024)

• Added the future to call functions. Currently, there is only the Write(...Values) function instead of the print keyword.

   Write(E, Pi);
  

• Optimized code execution in the following areas:
  • token parsing,
  • keyword recognition,
  • token sequence traversal,
  • creation of regions in brackets,
  • tree parsing for various operations,
  • evaluation of the tree from different nodes.
• Fixed token position detection.
• Any error now includes its position.
• Fixed parsing errors with multiple brackets.

   Write((1 + 1) * (1 + 1));
  

0.1.12 (10.02.2024)

• Temporarily removed unstable operators +:, -:, *:, /:.
• Interpreter split into parts for easier management. Code simplified using patterns.
• Parser structure changed. Pointer tracking during code reading implemented. Parser errors now indicate error location.

   print(1 + );
   Expected expression at line 1 column 9
  

• Keyword print now requires parentheses.

   print(E * PI);
  

0.1.10 (04.12.2023)

• Added operators +:, -:, *:, /:.

   data A;
   A +: 3;
   A : A + 3;
  

• Optimized token parsing.

0.1.9 (29.11.2023)

• Added the keyword null. To use a missing value, it's necessary to explicitly use null. The absence of a value is no longer automatically considered as null.

   data A : null;
  

• Improved recognition of semicolons.
• Now the initial variables E and Pi are considered non-writable. Their values cannot be changed.
• Improved adaptability and interpretation of variables.

   print(data A : 5);
  

• Fixed a bug where it was possible to initialize a variable with itself.

0.1.7 (28.11.2023)

• Now you can execute code with multiple instructions.

   data A : 1;
   data B : 2;
   print(A);
   print(B);
  

• Added the ability to work with signed numbers. For example: +2, -4.

   print(7 + -4);
  

• Improved language adaptability. Now, the absence of a value anywhere will be interpreted as null;

   data A : ();
   print(A);
  

• Changed syntax. Now it's mandatory to put a semicolon after each instruction.

0.1.5 (27.11.2023)

• Optimized parsing of code in brackets.
• Improved error descriptions.
• Added the ability to put a semicolon at the end of a line. It can also be omitted.
• Added the ability to declare variables, initialize them, and change their values.
• Now, only data in the print() key block will be output to the console.

Release 0.1.2 (24.11.2023)

First stable version