add license headers

interpreter/src/lib.rs

@@ -1,3 +1,8 @@
+// This file is part of the uutils awk package.
+//
+// For the full copyright and license information, please view the LICENSE
+// files that was distributed with this source code.
+
 use color_eyre::eyre::Result;
 use either::Either;
 

lexer/src/lib.rs

@@ -1,3 +1,9 @@
+// This file is part of the uutils awk package.
+//
+// For the full copyright and license information, please view the LICENSE
+// files that was distributed with this source code.
+
+
 #[cfg(test)]
 mod tests;
 

parser/src/ast.rs

@@ -1,3 +1,8 @@
+// This file is part of the uutils awk package.
+//
+// For the full copyright and license information, please view the LICENSE
+// files that was distributed with this source code.
+
 use std::fmt::Debug;
 
 use bumpalo::{Bump, collections::Vec};

parser/src/lex.rs

@@ -1,3 +1,8 @@
+// This file is part of the uutils awk package.
+//
+// For the full copyright and license information, please view the LICENSE
+// files that was distributed with this source code.
+
 use std::{fmt::Debug, iter::Peekable};
 
 use lexer::{LexingError, Logos, Span, SpannedIter, Token};

parser/src/lib.rs

@@ -1,3 +1,8 @@
+// This file is part of the uutils awk package.
+//
+// For the full copyright and license information, please view the LICENSE
+// files that was distributed with this source code.
+
 mod ast;
 mod lex;
 mod sexpr;

parser/src/sexpr.rs

@@ -1,3 +1,8 @@
+// This file is part of the uutils awk package.
+//
+// For the full copyright and license information, please view the LICENSE
+// files that was distributed with this source code.
+
 use std::fmt::{Debug, Formatter, Result};
 
 use crate::ast::{Atom, Body, Expr, Identifier, Statement, Variable};

src/main.rs

@@ -1,3 +1,8 @@
+// This file is part of the uutils awk package.
+//
+// For the full copyright and license information, please view the LICENSE
+// files that was distributed with this source code.
+
 // static POSIX: bool = false;
 
 mod utils;

src/utils.rs

@@ -1,3 +1,8 @@
+// This file is part of the uutils awk package.
+//
+// For the full copyright and license information, please view the LICENSE
+// files that was distributed with this source code.
+
 use std::fmt::{Debug, Display};
 use std::panic::{UnwindSafe, catch_unwind, set_hook, take_hook};
 use std::process::exit;