Crate perl_parser_pest 

Legacy Pest-based Perl parser (v2).

This crate provides a pure Rust Perl parser built with the Pest parser generator. It outputs tree-sitter compatible S-expressions and requires no C dependencies.

Note: This is maintained as a learning tool and historical reference. For production parsing and LSP, use perl-parser (v3).

Example

use perl_parser_pest::PureRustPerlParser;

let mut parser = PureRustPerlParser::new();
let code = r#"
    sub hello {
        my $name = shift;
        print "Hello, $name!\n";
    }
"#;

let ast = parser.parse(code)?;
let sexp = parser.to_sexp(&ast);
println!("{}", sexp);

Architecture

The parser uses a three-stage pipeline:

1. Pest Parsing: PEG grammar processes input into parse tree
2. AST Building: Type-safe AST construction with position tracking
3. S-Expression Output: Tree-sitter compatible format generation

Re-exports

pub use error::ParseError;

pub use error::ParseResult;

pub use pratt_parser::PrattParser;

pub use pure_rust_parser::AstNode;

pub use pure_rust_parser::PerlParser;

pub use pure_rust_parser::PureRustPerlParser;

pub use sexp_formatter::SexpFormatter;

Modules

error

Error types for tree-sitter Perl parser

pratt_parser

pure_rust_parser

Pure Rust Perl parser implementation

sexp_formatter

S-expression formatter for AST nodes