Allow Non-Alphabetic Characters in Function, Global Variable, and Struct Type Names

[Y-Nak]

Currently, the parser restricts the characters allowed in the names of functions, global variables, and struct types to alphanbetic characters, numbers and underscores (_). We propose removing this limitation to allow a broader set of characters. Specifically, we want the parser to accept any character excluding delimiter characters(e.g., whitespace or newlines) in these names.

Proposed Solution:

• Grammar Update:
  • Modify sonatina.pest file.

Benefits:

• Improved Expressiveness:
  • Allows for more descriptive and meaningful names by including symbols and special characters(especially it's useful to describe namespace in frontend language, e.g., func %my_crate::module::foo).