Update nom requirement from 5.0.0 to 6.0.0 (#6)

Updates the requirements on [nom](https://github.com/Geal/nom) to permit the latest version.
- [Release notes](https://github.com/Geal/nom/releases)
- [Changelog](https://github.com/Geal/nom/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Geal/nom/compare/5.0.0...6.0.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.toml

@@ -8,7 +8,7 @@ edition = "2018"
 [dependencies]
 crc32fast = "1.2.0"
 esplugin = "3.0.0"
-nom = "5.0.0"
+nom = "6.0.0"
 pelite = "0.9.0"
 regex = "1.0.5"
 unicase = "2.2.0"

src/error.rs

@@ -85,6 +85,13 @@ impl<I: fmt::Debug + fmt::Display> From<(I, ErrorKind)> for ParsingError<I> {
     }
 }
 
+impl<I: fmt::Debug + fmt::Display> From<nom::error::Error<I>> for ParsingError<I> {
+    fn from(error: nom::error::Error<I>) -> Self {
+        use nom::error::ParseError;
+        ParsingError::from_error_kind(error.input, error.code)
+    }
+}
+
 impl<I: fmt::Debug + fmt::Display> fmt::Display for ParsingError<I> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(

src/function/parse.rs

@@ -93,7 +93,7 @@ fn parse_crc(input: &str) -> ParsingResult<u32> {
 }
 
 fn parse_checksum_args(input: &str) -> ParsingResult<(PathBuf, u32)> {
-    let parser = tuple((
+    let mut parser = tuple((
         map_err(parse_path),
         map_err(whitespace(tag(","))),
         map_parser(hex_digit1, parse_crc),

src/lib.rs

@@ -14,7 +14,7 @@ use nom::branch::alt;
 use nom::bytes::complete::tag;
 use nom::character::complete::space0;
 use nom::combinator::map;
-use nom::multi::separated_list;
+use nom::multi::separated_list0;
 use nom::sequence::{delimited, preceded};
 use nom::IResult;
 
@@ -175,7 +175,7 @@ impl str::FromStr for Expression {
 
 fn parse_expression(input: &str) -> ParsingResult<Expression> {
     map(
-        separated_list(map_err(whitespace(tag("or"))), CompoundCondition::parse),
+        separated_list0(map_err(whitespace(tag("or"))), CompoundCondition::parse),
         Expression,
     )(input)
 }
@@ -203,7 +203,7 @@ impl CompoundCondition {
 
     fn parse(input: &str) -> ParsingResult<CompoundCondition> {
         map(
-            separated_list(map_err(whitespace(tag("and"))), Condition::parse),
+            separated_list0(map_err(whitespace(tag("and"))), Condition::parse),
             CompoundCondition,
         )(input)
     }
@@ -263,14 +263,14 @@ impl fmt::Display for Condition {
 }
 
 fn map_err<'a, O>(
-    parser: impl Fn(&'a str) -> IResult<&'a str, O, (&'a str, nom::error::ErrorKind)>,
-) -> impl Fn(&'a str) -> ParsingResult<'a, O> {
+    mut parser: impl FnMut(&'a str) -> IResult<&'a str, O, nom::error::Error<&'a str>>,
+) -> impl FnMut(&'a str) -> ParsingResult<'a, O> {
     move |i| parser(i).map_err(nom::Err::convert)
 }
 
 fn whitespace<'a, O>(
     parser: impl Fn(&'a str) -> IResult<&'a str, O>,
-) -> impl Fn(&'a str) -> IResult<&'a str, O> {
+) -> impl FnMut(&'a str) -> IResult<&'a str, O> {
     delimited(space0, parser, space0)
 }
 
@@ -454,7 +454,7 @@ mod tests {
         let error = Expression::from_str("file(\"Carg").unwrap_err();
 
         assert_eq!(
-            "An error was encountered while parsing the expression \"file(\\\"Carg\": Error in parser: Separated list",
+            "The parser did not consume the following input: \"file(\"Carg\"",
             error.to_string()
         );
     }