Implement support for multiline comments

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

src/lib.rs

@@ -14,7 +14,7 @@ use nom::{
 	branch::alt,
 	bytes::complete::{tag, take_until, take_until1, take_while, take_while1},
 	character::complete::{multispace0, space0},
-	combinator::recognize,
+	combinator::{opt, recognize},
 	error::{ErrorKind, ParseError},
 	multi::{many0, many1},
 	sequence::{delimited, tuple},
@@ -47,11 +47,23 @@ pub struct Spec {
 }
 
 fn allspaces(i: &str) -> IResult<&str, &str> {
-	alt((delimited(multispace0, comment, multispace0), multispace0))(i)
+	let (i, (_, comments)) = tuple((multispace0, opt(comment)))(i)?;
+
+	let mut i = i;
+	if let Some(_) = comments {
+		let (j, _) = multispace0(i)?;
+		i = j;
+	}
+
+	Ok((i, ""))
 }
 
 fn comment(i: &str) -> IResult<&str, &str> {
-	let (i, _) = delimited(alt((tag("#"), tag("//"))), take_until("\n"), tag("\n"))(i)?;
+	let (i, _) = many1(delimited(
+		alt((tag("#"), tag("//"))),
+		take_until("\n"),
+		tag("\n"),
+	))(i)?;
 	Ok((i, ""))
 }