Enhance Body Handling and Token Iteration

[LunaStev]

• Create function to handle body:

  • Introduced a new function to manage the body of a function or block, making it easier to handle dynamic content.

• Body variable function:

  • Added a variable function to handle body content more flexibly, improving the structure of the code.

• AST Conversion via HashMap:

  • Simplified AST conversion using a HashMap for easier handling of AST nodes and variables.

• Peekable Token Iterator:

  • Added peekable functionality to the token iterator, enabling more efficient token inspection and management.

• While-let Loop for Token Iteration:

  • Introduced a while-let loop for iterating over tokens, improving readability and efficiency of token processing.

• Match Statement for Token Processing:

  • Implemented a match statement to handle token processing, improving the clarity and extensibility of the token parsing logic.

• Test Body AST Generation:

  • Added functionality to test the generation of AST nodes for body content, ensuring correct body structure handling.

• Token Handling Improvements:

  • Refined token handling by making changes to token iteration logic, and removing unnecessary iteration constructs.

• Add StatementNode:

  • Introduced StatementNode to enhance the AST structure, representing individual statements within the body.

• Syntax for Body Test:

  • Created the syntax and framework for testing body AST generation and output handling.

• Compulsory Grammar:

  • Enforced grammar rules for body content, ensuring correctness in the AST generation.

• Extract Body:

  • Added an extract_body function for easier extraction and handling of body content, facilitating code clarity.