[−][src]Crate python_parser
A Python parser based on nom, plus some utilities.
Panics
Never (except stack overflows).
Numbers
Python's integer literals may be arbitrary large. This is supported
thanks to the num_bigint
crate.
Disable the bigint
feature to fall back to u64
.
String encoding
ast::PyString
s are WTF8-encoded if the wtf8
feature is enabled
(the default) allowing full support for Python's string literals.
If that feature is disabled, they default to regular Rust strings.
Note that without the wtf8
feature, some valid string
literals will be badly parsed (missing characters).
Python version support
Currently supports Python 3.7's syntax (and Python 3.8 up to 2018-09-22).
Example
use python_parser::ast::*; let code = "print(2 + 3, fd=sys.stderr)"; let ast = python_parser::file_input(python_parser::make_strspan(code)) .unwrap() .1; assert_eq!(ast, vec![ Statement::Assignment( vec![ Expression::Call( Box::new(Expression::Name("print".to_string())), vec![ Argument::Positional( Expression::Bop( Bop::Add, Box::new(Expression::Int(2u32.into())), Box::new(Expression::Int(3u32.into())), ) ), Argument::Keyword( "fd".to_string(), Expression::Attribute( Box::new(Expression::Name("sys".to_string())), "stderr".to_string(), ) ), ] ), ], vec![], ) ] );
Modules
ast | enums and structures that store the syntax tree outputed by the parser. |
errors | |
visitors | Utilities that work on the AST. |
Functions
eval_input | Parses the input of eval(). |
file_input | Parses a module or sequence of commands. |
make_strspan | Helper to make an instance of |
parse_single_input | Parses a single interactive statement, like in the REPL. |