Parser review

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Для прохідного:
✔️ ! Brief Description
✔️ ! Project Name
✔️ ! Grammar Rules
✔️ ! Unit Tests
✔️ ! Test Coverage
✔️ ! Core Files
✔️ ! CLI (треба help)

Для максимального:
❌ Error Handling ( Implement proper error handling by using anyhow for tests and thiserror for the library.)
✔️ cargo fmt:
✔️ cargo clippy
✔️ makefile
❌ Completeness
✔️ Including a diagram or grammar in the Readme.md:
✔️ Documentation:
✔️ Publishing

✔️ Курсова може бути зарахована
Бал: 14/20

[Invop]

updated:
1.
new grammar rules added
brand = { "(" ~ (ASCII_ALPHA | " ")+ ~ ")" }
description = { "{" ~ (ASCII_ALPHA | ASCII_DIGIT | " ")+ ~ "}" }

updated:
item = { index ~ "." ~ WHITE_SPACE? ~ name ~ WHITE_SPACE? ~ quantity ~ WHITE_SPACE? ~ unit ~ (WHITE_SPACE? ~ brand)? ~ (WHITE_SPACE? ~ description)? }
shopping_list = { SOI ~ ((WHITE_SPACE* ~ (category | item) ~ WHITE_SPACE* ~ NEWLINE?)* ~ EOI) }

Added tests for each grammar rule
3.
help has been updated

The readme file has been updated

err handling

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оновив