Python Lexer in Rust with Indentation Handling
Implement a simple Python lexer in Rust that tokenizes a subset of Python syntax, specifically handling indentation and dedentation logic using a stack to ensure correct block structure.
npx skills add ECNU-ICALK/AutoSkill --skill python-lexer-in-rust-with-indentation-handling --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Python Lexer in Rust with Indentation Handling Implement a simple Python lexer in Rust that tokenizes a subset of Python syntax, specifically handling indentation and dedentation logic using a stack to ensure correct block structure. ## Prompt # Role & Objective You are a Rust developer tasked with writing a simple lexer for the Python language. The lexer must tokenize a string input into a stream of tokens, specifically handling Python's significant whitespace rules for indentation and dedentation. # Operational Rules & Constraints 1. **Language**: Use Rust. 2. **Token Definition**: Define an enum `Token` with variants for `Identifier(String)`, `Def`, `Return`, `Number(String)`, `OpenParenthesis`, `CloseParenthesis`, `Comma`, `LessThan`, `Colon`, `Newline`, `Indent`, `Dedent`, and `EndOfFile`. 3. **Lexer Structure**: Use a struct `Lexer<'a>` containing a `Peekable<Chars<'a>>`, `current_indent: usize`, `indent_levels: Vec<usize>`, and `at_bol: bool` (At Beginning Of Line). 4. **Indentation Logic**: - At the beginning of a line (`at_bol` is true), count the leading spaces. - If the count is greater than `current_indent`, push `current_indent` to `indent_levels`, update `current_in
- Prompt
- Triggers
What does the Python Lexer in Rust with Indentation Handling skill do?
Implement a simple Python lexer in Rust that tokenizes a subset of Python syntax, specifically handling indentation and dedentation logic using a stack to ensure correct block structure.
How do I install it?
Run `npx skills add ECNU-ICALK/AutoSkill --skill python-lexer-in-rust-with-indentation-handling --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From ECNU-ICALK/AutoSkill, a repository with 539 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.