Pascal Interpreter

The interpreter is cleanly split into lexer, parser, semantic analyzer, and interpreter modules, providing a clear, educational structure as detailed in the README's component descriptions and diagrams.

Includes a CLI utility, Swift Playground, and example Pascal programs like a number guessing game, enabling interactive experimentation and testing without complex setup.

Built following the 'Let’s Build A Simple Interpreter' series, ensuring a pedagogically sound and well-documented approach to language implementation, as noted in the Philosophy section.

Implements standard types, functions, procedures, loops, and arrays, covering essential Pascal language elements as listed in the 'What is implemented' section with working examples.