Language pragmas via special comments

[resetius]

Motivation

To extend Kumir language with new features (structs, OOP, etc.) while maintaining backward compatibility with original Kumir interpreter, we need a pragma system.

Pragmas will be implemented as special comments that Kumir ignores but Qumir parses and processes.

Syntax

|# pragma_name: value #|

Or single-line:

| pragma_name: value

Examples:

|# qumir:feature struct #|
|# qumir:feature class #|
|# qumir:strict types #|

Use Cases

• Enable experimental language features (structs, classes, generics)
• Set compilation modes (strict type checking, optimizations)
• Configure runtime behavior
• Conditional compilation

Implementation

TBD — needs lexer/parser changes to recognize and store pragmas.

Notes

• Must be valid Kumir comments so original Kumir can still run the code
• Pragmas should be opt-in, default behavior matches Kumir