rslua

Yet another Lua lexer and Lua parser for Lua 5.3 written in pure Rust.

Lexer

• input str
• output Result, LexError>

rust use rslua::lexer::Lexer; let mut lexer = Lexer::new(); let tokens = lexer.run(input_lua_code)?;

Lexer Config

| Key | Type | Default | Descripten | | --- | --- | --- | --- | | use_origin_string | bool | false | Use origin string as token value instead of escaped one. | | reserve_comments | bool | false | Reserve comments as tokens. |

Parser

• input Vec\
• output Result

rust let mut parser = Parser::new(); let block = parser.run(tokens)?;

AST walker

Use ast_walker to travel the AST, implement the AstVisitor trait to run custom logic.

A complete example

Read Lua source files from ./lua folder, parse them, generate ASTs and walk them through, use a LuaWritter struct which impletements the AstVisitor trait to re-generate formatted Lua source again to ./tmp folder.

See tests/luatolua.rs