Implement core lexer and parser

crates/decodal-core/src/lib.rs

@@ -2,6 +2,18 @@
 
 extern crate alloc;
 
+pub mod ast;
+pub mod diagnostic;
+pub mod lexer;
+pub mod parser;
+pub mod span;
+
+pub use ast::{Ast, BinaryOp, CompareOp, Expr, ExprId, Field, Literal, Param};
+pub use diagnostic::{Diagnostic, DiagnosticKind, Result};
+pub use lexer::{Lexer, Token, TokenKind};
+pub use parser::{ParseOutput, Parser, parse_source};
+pub use span::Span;
+
 pub fn version() -> &'static str {
     env!("CARGO_PKG_VERSION")
 }