Crate s_expr

Source
Expand description

S-Expressions Parser and Printer

§Parser example

use s_expr::{Parser, Element, Span};

let mut parser = Parser::new("(let x 1)");
let r = parser.next().expect("parse data").expect("not end of stream");

let elements = r.inner.paren().expect("paren group");
assert_eq!(elements[0].inner.atom().and_then(|atom| atom.ident()), Some("let"));
assert_eq!(elements[0].span, Span::on_line(1, 1, 4));

Structs§

  • ABytes
    A Bytes literal
  • ADecimal
    Decimal Number (e.g. 1.3)
  • ANum
    Integral Number
  • Parser
    S-Expr Parser
  • Position
    A file position for human composed of the line (starting at 1), and column (starting a 0)
  • Printer
    Simple printer
  • Span
    Span defined by 2 positions, defining a range between start and end
  • Tokenizer
    Tokenizer state on the data
  • TokenizerConfig
    Config for the tokenizer, for flags

Enums§

  • Atom
    Atom literal (Number, Bytes, String, or Ident)
  • Element
    Element of S-Expr
  • GroupKind
    Type of group
  • ParserError
    Parser Error, which are either token error or some error related to group balancing like unterminated group, or mismatch of group
  • Token
    Tokens
  • TokenError

Type Aliases§