sgf/src/game.rs

@@ -1,4 +1,4 @@
-use crate::{parser, Color};
+use crate::{tree, Color, Position};
 use std::{collections::HashSet, time::Duration};
 use uuid::Uuid;
 
@@ -227,9 +227,9 @@ impl Node for GameNode {
     }
 }
 
-impl TryFrom<&parser::Node> for GameNode {
+impl TryFrom<&tree::Node> for GameNode {
     type Error = ConversionError;
-    fn try_from(n: &parser::Node) -> Result<Self, Self::Error> {
+    fn try_from(n: &tree::Node) -> Result<Self, Self::Error> {
         unimplemented!()
     }
 }
@@ -260,7 +260,7 @@ impl Node for GameTree {
 pub struct MoveNode {
     id: Uuid,
     color: Color,
-    position: String,
+    position: Position,
     children: Vec<GameNode>,
 
     time_left: Option<Duration>,
@@ -274,7 +274,7 @@ pub struct MoveNode {
 }
 
 impl MoveNode {
-    pub fn new(color: Color, position: String) -> Self {
+    pub fn new(color: Color, position: Position) -> Self {
         Self {
             id: Uuid::new_v4(),
             color,
@@ -304,41 +304,42 @@ impl Node for MoveNode {
     }
 }
 
-impl TryFrom<&parser::Node> for MoveNode {
+impl TryFrom<&tree::Node> for MoveNode {
     type Error = ConversionError;
 
-    fn try_from(n: &parser::Node) -> Result<Self, Self::Error> {
+    fn try_from(n: &tree::Node) -> Result<Self, Self::Error> {
-        match n.move_() {
+        let move_ = match (n.find_prop("W"), n.find_prop("B")) {
-            Some((color, position)) => Ok(MoveNode::new(color, position)),
+            (Some(white_move), _) => Some((Color::White, Position{ row: white_move
+            (None, Some(black_move)) => unimplemented!(),
+            (None, None) => None,
+        };
+
+        match move_ {
+            Some((color, position)) => unimplemented!(),
             None => Err(ConversionError::IncompatibleNodeType),
         }
     }
 }
 
-/*
 fn parse_position(s: &str) -> Result<Position, ConversionError> {
     if s.len() == 2 {
-        Ok(Position {
+        Ok(Position{ row: s[0], column: s[1] })
-            row: s[0],
-            column: s[1],
-        })
     } else {
         Err(ConversionError::InvalidPositionSyntax)
     }
 }
-*/
 
 #[derive(Clone, Debug, PartialEq)]
 pub struct SetupNode {
     id: Uuid,
 
-    positions: Vec<(Option<Color>, String)>,
+    positions: Vec<(Option<Color>, Position)>,
     children: Vec<GameNode>,
 }
 
 impl SetupNode {
-    pub fn new(positions: Vec<(Option<Color>, String)>) -> Result<Self, SetupError> {
+    pub fn new(positions: Vec<(Option<Color>, Position)>) -> Result<Self, SetupError> {
-        let mut coords: HashSet<String> = HashSet::new();
+        let mut coords: HashSet<Position> = HashSet::new();
         for coord in positions.iter().map(|p| p.1.clone()) {
             if coords.contains(&coord) {
                 return Err(SetupError::ConflictingPosition);
@@ -395,9 +396,21 @@ mod test {
     fn it_can_add_moves_to_a_game() {
         let mut tree = GameTree::new();
 
-        let first_move = MoveNode::new(Color::Black, "dd".to_owned());
+        let first_move = MoveNode::new(
+            Color::Black,
+            Position {
+                row: 'd',
+                column: 'd',
+            },
+        );
         let first_ = tree.add_child(GameNode::MoveNode(first_move.clone()));
-        let second_move = MoveNode::new(Color::White, "qq".to_owned());
+        let second_move = MoveNode::new(
+            Color::White,
+            Position {
+                row: 'q',
+                column: 'q',
+            },
+        );
         first_.add_child(GameNode::MoveNode(second_move.clone()));
 
         let nodes = tree.nodes();
@@ -416,19 +429,20 @@ mod test {
 
     #[test]
     fn game_node_can_parse_sgf_move_node() {
-        let n = parser::Node {
+        let n = tree::Node {
             properties: vec![
-                parser::Property::Move((Color::White, "dp".to_owned())),
+                tree::Property {
-                /*
+                    ident: "W".to_owned(),
-                parser::Property {
+                    values: vec!["dp".to_owned()],
+                },
+                tree::Property {
                     ident: "WL".to_owned(),
                     values: vec!["176.099".to_owned()],
                 },
-                parser::Property {
+                tree::Property {
                     ident: "C".to_owned(),
                     values: vec!["Comments in the game".to_owned()],
                 },
-                */
             ],
             next: vec![],
         };
@@ -458,25 +472,26 @@ mod move_node_tests {
 
     #[test]
     fn it_can_parse_an_sgf_move_node() {
-        let n = parser::Node {
+        let n = tree::Node {
             properties: vec![
-                parser::Property::Move((Color::White, "dp".to_owned())),
+                tree::Property {
-                /*
+                    ident: "W".to_owned(),
-                parser::Property {
+                    values: vec!["dp".to_owned()],
+                },
+                tree::Property {
                     ident: "WL".to_owned(),
                     values: vec!["176.099".to_owned()],
                 },
-                parser::Property {
+                tree::Property {
                     ident: "C".to_owned(),
                     values: vec!["Comments in the game".to_owned()],
                 },
-                */
             ],
             next: vec![],
         };
         assert_matches!(MoveNode::try_from(&n), Ok(node) => {
             assert_eq!(node.color, Color::White);
-            assert_eq!(node.position, "dp".to_owned());
+            assert_eq!(node.position, Position{ row: 'd', column: 'p' });
             assert_eq!(node.children, vec![]);
             assert_eq!(node.time_left, Some(Duration::from_secs(176)));
             assert_eq!(node.comments, vec!["Comments in the game".to_owned()]);
@@ -502,16 +517,46 @@ mod setup_node_tests {
     fn it_rejects_conflicting_placement_properties() {
         assert_matches!(
             SetupNode::new(vec![
-                (Some(Color::Black), "dd".to_owned(),),
+                (
-                (Some(Color::Black), "dd".to_owned(),),
+                    Some(Color::Black),
+                    Position {
+                        row: 'd',
+                        column: 'd',
+                    },
+                ),
+                (
+                    Some(Color::Black),
+                    Position {
+                        row: 'd',
+                        column: 'd',
+                    },
+                ),
             ]),
             Err(SetupError::ConflictingPosition)
         );
         assert_matches!(
             SetupNode::new(vec![
-                (Some(Color::Black), "dd".to_owned(),),
+                (
-                (Some(Color::Black), "ee".to_owned(),),
+                    Some(Color::Black),
-                (Some(Color::White), "ee".to_owned(),),
+                    Position {
+                        row: 'd',
+                        column: 'd',
+                    },
+                ),
+                (
+                    Some(Color::Black),
+                    Position {
+                        row: 'e',
+                        column: 'e',
+                    },
+                ),
+                (
+                    Some(Color::White),
+                    Position {
+                        row: 'e',
+                        column: 'e',
+                    },
+                ),
             ]),
             Err(SetupError::ConflictingPosition)
         );

sgf/src/lib.rs

@@ -3,10 +3,10 @@ pub use date::Date;
 
 // pub mod go;
 
-mod game;
+mod tree;
+use tree::{parse_collection, Tree};
 
-mod parser;
+// mod game;
-use parser::{parse_collection, Tree};
 
 use thiserror::Error;
 

sgf/src/tree.rs

@@ -1,12 +1,11 @@
 use crate::{Color, Error, GameResult};
 use nom::{
     branch::alt,
-    bytes::complete::{escaped_transform, tag, take_until1},
+    bytes::complete::{escaped_transform, tag},
-    character::complete::{alpha1, digit1, multispace0, multispace1, none_of},
+    character::complete::{alpha1, multispace0, multispace1, none_of},
     combinator::{opt, value},
-    error::ParseError,
     multi::{many0, many1, separated_list1},
-    IResult, Parser,
+    IResult,
 };
 use std::num::ParseIntError;
 
@@ -28,12 +27,6 @@ impl From<ParseIntError> for ParseSizeError {
     }
 }
 
-#[derive(Clone, Debug, PartialEq)]
-pub enum Double {
-    Normal,
-    Emphasized,
-}
-
 #[derive(Clone, Debug, PartialEq)]
 pub enum GameType {
     Go,
@@ -238,18 +231,6 @@ pub struct Node {
     pub next: Vec<Node>,
 }
 
-impl Node {
-    pub fn move_(&self) -> Option<(Color, String)> {
-        self.properties
-            .iter()
-            .filter_map(|prop| match prop {
-                Property::Move(val) => Some(val.clone()),
-                _ => None,
-            })
-            .next()
-    }
-}
-
 impl ToString for Node {
     fn to_string(&self) -> String {
         let props = self
@@ -275,6 +256,21 @@ impl ToString for Node {
     }
 }
 
+/*
+impl Node {
+    pub fn find_prop(&self, ident: &str) -> Option<Property> {
+        self.properties
+            .iter()
+            .find(|prop| prop.ident == ident)
+            .cloned()
+    }
+
+    pub fn next<'a>(&'a self) -> Option<&'a Node> {
+        self.next.get(0)
+    }
+}
+*/
+
 //  KO
 //  MN
 //  N
@@ -297,10 +293,10 @@ impl ToString for Node {
 #[derive(Clone, Debug, PartialEq)]
 pub enum Property {
     //  B, W
-    Move((Color, String)),
+    Move((Color, Position)),
 
     // C
-    Comment(String),
+    Comment(Vec<String>),
 
     //  BM
     BadMove,
@@ -321,7 +317,7 @@ pub enum Property {
     Charset(String),
 
     //  FF
-    FileFormat(i32),
+    FileFormat(u8),
 
     //  GM
     GameType(GameType),
@@ -431,16 +427,30 @@ pub enum Property {
 #[derive(Clone, Debug, PartialEq)]
 pub struct UnknownProperty {
     ident: String,
-    value: String,
+    values: Vec<String>,
 }
 
+/*
+#[derive(Clone, Debug, PartialEq)]
+pub struct Property {
+    pub ident: String,
+    pub values: Vec<String>,
+}
+*/
+
 impl ToString for Property {
     fn to_string(&self) -> String {
         match self {
             Property::Move((color, position)) => {
-                format!("{}[{}]", color.abbreviation(), position)
+                format!("{}[{}]", color.abbreviation(), position.0)
             }
-            Property::Comment(value) => format!("C[{}]", value),
+            Property::Comment(values) => format!(
+                "C{}",
+                values
+                    .iter()
+                    .map(|v| format!("[{}]", v))
+                    .collect::<String>()
+            ),
             Property::BadMove => "BM[]".to_owned(),
             Property::DoubtfulMove => "DO[]".to_owned(),
             Property::InterestingMove => "IT[]".to_owned(),
@@ -494,10 +504,18 @@ impl ToString for Property {
             Property::User(value) => format!("US[{}]", value),
             Property::WhiteRank(value) => format!("WR[{}]", value),
             Property::WhiteTeam(value) => format!("WT[{}]", value),
-            Property::Unknown(UnknownProperty { ident, value }) => {
+            Property::Unknown(UnknownProperty { ident, values }) => {
-                format!("{}[{}]", ident, value)
+                let values = values
+                    .iter()
+                    .map(|val| format!("[{}]", val))
+                    .collect::<String>();
+                format!("{}{}", ident, values)
             }
         }
+        /*
+        let values = self
+            .collect::<String>();
+        */
     }
 }
 
@@ -545,133 +563,77 @@ fn parse_property<'a, E: nom::error::ParseError<&'a str>>(
 ) -> IResult<&'a str, Property, E> {
     let (input, _) = multispace0(input)?;
     let (input, ident) = alpha1(input)?;
+    let (input, values) = many1(parse_propval)(input)?;
+    let (input, _) = multispace0(input)?;
 
-    let (input, prop) = match ident {
+    let values = values
-        "W" => parse_propval(parse_move(Color::White))(input)?,
+        .into_iter()
-        "B" => parse_propval(parse_move(Color::Black))(input)?,
+        .map(|v| v.to_owned())
-        "C" => parse_propval(parse_comment())(input)?,
+        .collect::<Vec<String>>();
-        "BM" => discard_propval().map(|_| Property::BadMove).parse(input)?,
+
-        "DO" => discard_propval()
+    let prop = match ident {
-            .map(|_| Property::DoubtfulMove)
+        "W" => Property::Move((Color::White, Position(values[0].clone()))),
-            .parse(input)?,
+        "B" => Property::Move((Color::Black, Position(values[0].clone()))),
-        "IT" => discard_propval()
+        "C" => Property::Comment(values),
-            .map(|_| Property::InterestingMove)
+        "BM" => Property::BadMove,
-            .parse(input)?,
+        "DO" => Property::DoubtfulMove,
-        "TE" => discard_propval().map(|_| Property::Tesuji).parse(input)?,
+        "IT" => Property::InterestingMove,
-        "AP" => parse_propval(parse_simple_text().map(Property::Application))(input)?,
+        "TE" => Property::Tesuji,
-        "CA" => parse_propval(parse_simple_text().map(Property::Charset))(input)?,
+        "AP" => Property::Application(values.join(",")),
-        "FF" => parse_propval(parse_number().map(Property::FileFormat))(input)?,
+        "CA" => Property::Charset(values.join(",")),
-        "GM" => unimplemented!(),
+        "FF" => Property::FileFormat(values.join("").parse::<u8>().unwrap()),
+        "GM" => Property::GameType(GameType::from(values.join("").as_ref())),
         "ST" => unimplemented!(),
-        "SZ" => unimplemented!(),
+        "SZ" => Property::BoardSize(Size::try_from(values.join("").as_ref()).unwrap()),
-        "DM" => discard_propval()
+        "DM" => Property::EvenResult,
-            .map(|_| Property::EvenResult)
+        "GB" => Property::GoodForBlack,
-            .parse(input)?,
+        "GW" => Property::GoodForWhite,
-        "GB" => discard_propval()
+        "UC" => Property::UnclearResult,
-            .map(|_| Property::GoodForBlack)
+        "V" => Property::Value(values.join("").parse::<f32>().unwrap()),
-            .parse(input)?,
+        "AN" => Property::Annotator(values.join("")),
-        "GW" => discard_propval()
+        "BR" => Property::BlackRank(values.join("")),
-            .map(|_| Property::GoodForWhite)
+        "BT" => Property::BlackTeam(values.join("")),
-            .parse(input)?,
+        "CP" => Property::Copyright(values.join("")),
-        "UC" => discard_propval()
-            .map(|_| Property::UnclearResult)
-            .parse(input)?,
-        "V" => unimplemented!(),
-        "AN" => parse_propval(parse_simple_text().map(Property::Annotator))(input)?,
-        "BR" => parse_propval(parse_simple_text().map(Property::BlackRank))(input)?,
-        "BT" => parse_propval(parse_simple_text().map(Property::BlackTeam))(input)?,
-        "CP" => parse_propval(parse_simple_text().map(Property::Copyright))(input)?,
         "DT" => unimplemented!(),
-        "EV" => parse_propval(parse_simple_text().map(Property::EventName))(input)?,
+        "EV" => Property::EventName(values.join("")),
-        "GN" => parse_propval(parse_simple_text().map(Property::GameName))(input)?,
+        "GN" => Property::GameName(values.join("")),
-        "GC" => parse_propval(parse_simple_text().map(Property::ExtraGameInformation))(input)?,
+        "GC" => Property::ExtraGameInformation(values.join("")),
-        "ON" => parse_propval(parse_simple_text().map(Property::GameOpening))(input)?,
+        "ON" => Property::GameOpening(values.join("")),
-        "OT" => parse_propval(parse_simple_text().map(Property::Overtime))(input)?,
+        "OT" => Property::Overtime(values.join("")),
-        "PB" => parse_propval(parse_simple_text().map(Property::BlackPlayer))(input)?,
+        "PB" => Property::BlackPlayer(values.join("")),
-        "PC" => parse_propval(parse_simple_text().map(Property::GameLocation))(input)?,
+        "PC" => Property::GameLocation(values.join("")),
-        "PW" => parse_propval(parse_simple_text().map(Property::WhitePlayer))(input)?,
+        "PW" => Property::WhitePlayer(values.join("")),
-        "RE" => unimplemented!(),
+        "RE" => Property::Result(GameResult::try_from(values.join("").as_ref()).unwrap()),
-        "RO" => parse_propval(parse_simple_text().map(Property::Round))(input)?,
+        "RO" => Property::Round(values.join("")),
-        "RU" => parse_propval(parse_simple_text().map(Property::Ruleset))(input)?,
+        "RU" => Property::Ruleset(values.join("")),
-        "SO" => parse_propval(parse_simple_text().map(Property::Source))(input)?,
+        "SO" => Property::Source(values.join("")),
         "TM" => unimplemented!(),
-        "US" => parse_propval(parse_simple_text().map(Property::User))(input)?,
+        "US" => Property::User(values.join("")),
-        "WR" => parse_propval(parse_simple_text().map(Property::WhiteRank))(input)?,
+        "WR" => Property::WhiteRank(values.join("")),
-        "WT" => parse_propval(parse_simple_text().map(Property::WhiteTeam))(input)?,
+        "WT" => Property::WhiteTeam(values.join("")),
-        _ => parse_propval(parse_simple_text().map(|value| {
+        _ => Property::Unknown(UnknownProperty {
-            Property::Unknown(UnknownProperty {
             ident: ident.to_owned(),
-                value,
+            values,
-            })
+        }),
-        }))(input)?,
     };
 
     Ok((input, prop))
 }
 
-fn parse_comment<'a, E: nom::error::ParseError<&'a str>>() -> impl Parser<&'a str, Property, E> {
-    parse_text().map(|text| Property::Comment(text))
-}
-
-fn parse_move<'a, E: nom::error::ParseError<&'a str>>(
-    color: Color,
-) -> impl FnMut(&'a str) -> IResult<&'a str, Property, E> {
-    {
-        let color = color.clone();
-        move |input: &'a str| {
-            take_until1("]")
-                .map(|text: &'a str| Property::Move((color.clone(), text.to_owned())))
-                .parse(input)
-        }
-    }
-}
-
 fn parse_propval<'a, E: nom::error::ParseError<&'a str>>(
-    mut parser: impl Parser<&'a str, Property, E>,
+    input: &'a str,
-) -> impl FnMut(&'a str) -> IResult<&'a str, Property, E> {
+) -> IResult<&'a str, String, E> {
-    move |input| {
     let (input, _) = multispace0(input)?;
     let (input, _) = tag("[")(input)?;
-        let (input, value) = parser.parse(input)?;
+    let (input, value) = parse_propval_text(input)?;
     let (input, _) = tag("]")(input)?;
 
-        Ok((input, value))
+    Ok((input, value.unwrap_or(String::new())))
-    }
 }
 
-fn discard_propval<'a, E: nom::error::ParseError<&'a str>>() -> impl Parser<&'a str, (), E> {
+fn parse_propval_text<'a, E: nom::error::ParseError<&'a str>>(
-    |input| {
+    input: &'a str,
-        let (input, _) = multispace0(input)?;
+) -> IResult<&'a str, Option<String>, E> {
-        let (input, _) = tag("[")(input)?;
-        let (input, _) = parse_text().parse(input)?;
-        let (input, _) = tag("]")(input)?;
-        Ok((input, ()))
-    }
-}
-
-fn parse_number<'a, E: ParseError<&'a str>>() -> impl Parser<&'a str, i32, E> {
-    |input| {
-        let (input, sign) = opt(alt((tag("+"), tag("-"))))(input)?;
-        let (input, value) = digit1(input)?;
-        let mult = if sign == Some("-") { -1 } else { 1 };
-        Ok((input, value.parse::<i32>().unwrap() * mult))
-    }
-}
-
-fn parse_real<'a, E: ParseError<&'a str>>() -> impl Parser<&'a str, f32, E> {
-    |input| unimplemented!()
-}
-
-fn parse_double<'a, E: ParseError<&'a str>>() -> impl Parser<&'a str, Double, E> {
-    |input| unimplemented!()
-}
-
-fn parse_simple_text<'a, E: ParseError<&'a str>>() -> impl Parser<&'a str, String, E> {
-    |input| unimplemented!()
-}
-
-fn parse_text<'a, E: ParseError<&'a str>>() -> impl Parser<&'a str, String, E> {
-    |input| {
     let (input, value) = opt(escaped_transform(
         none_of("\\]"),
         '\\',
@@ -681,8 +643,7 @@ fn parse_text<'a, E: ParseError<&'a str>>() -> impl Parser<&'a str, String, E> {
             value("", tag("\n")),
         )),
     ))(input)?;
-        Ok((input, value.unwrap_or("".to_owned())))
+    Ok((input, value.map(|v| v.to_owned())))
-    }
 }
 
 /*
@@ -714,7 +675,13 @@ mod test {
     #[test]
     fn it_can_parse_properties() {
         let (_, prop) = parse_property::<nom::error::VerboseError<&str>>("C[a]").unwrap();
-        assert_eq!(prop, Property::Comment("a".to_owned()));
+        assert_eq!(prop, Property::Comment(vec!["a".to_owned()]));
+
+        let (_, prop) = parse_property::<nom::error::VerboseError<&str>>("C[a][b][c]").unwrap();
+        assert_eq!(
+            prop,
+            Property::Comment(vec!["a".to_owned(), "b".to_owned(), "c".to_owned()])
+        );
     }
 
     #[test]
@@ -724,7 +691,7 @@ mod test {
         assert_eq!(
             node,
             Node {
-                properties: vec![Property::Move((Color::Black, "ab".to_owned()))],
+                properties: vec![Property::Move((Color::Black, Position("ab".to_owned())))],
                 next: vec![]
             }
         );
@@ -736,13 +703,13 @@ mod test {
         assert_eq!(
             node,
             Node {
-                properties: vec![Property::Move((Color::Black, "ab".to_owned()))],
+                properties: vec![Property::Move((Color::Black, Position("ab".to_owned())))],
                 next: vec![Node {
-                    properties: vec![Property::Move((Color::White, "dp".to_owned()))],
+                    properties: vec![Property::Move((Color::White, Position("dp".to_owned())))],
                     next: vec![Node {
                         properties: vec![
-                            Property::Move((Color::Black, "pq".to_owned())),
+                            Property::Move((Color::Black, Position("pq".to_owned()))),
-                            Property::Comment("some comments".to_owned())
+                            Property::Comment(vec!["some comments".to_owned()])
                         ],
                         next: vec![],
                     }]
@@ -760,13 +727,13 @@ mod test {
         assert_eq!(
             sequence,
             Node {
-                properties: vec![Property::Move((Color::Black, "ab".to_owned()))],
+                properties: vec![Property::Move((Color::Black, Position("ab".to_owned())))],
                 next: vec![Node {
-                    properties: vec![Property::Move((Color::White, "dp".to_owned()))],
+                    properties: vec![Property::Move((Color::White, Position("dp".to_owned())))],
                     next: vec![Node {
                         properties: vec![
-                            Property::Move((Color::Black, "pq".to_owned())),
+                            Property::Move((Color::Black, Position("pq".to_owned()))),
-                            Property::Comment("some comments".to_owned())
+                            Property::Comment(vec!["some comments".to_owned()])
                         ],
                         next: vec![],
                     }]
@@ -781,18 +748,18 @@ mod test {
         let (_, tree) = parse_tree::<nom::error::VerboseError<&str>>(text).unwrap();
 
         let expected = Node {
-            properties: vec![Property::Comment("a".to_owned())],
+            properties: vec![Property::Comment(vec!["a".to_owned()])],
             next: vec![Node {
-                properties: vec![Property::Comment("b".to_owned())],
+                properties: vec![Property::Comment(vec!["b".to_owned()])],
                 next: vec![
                     Node {
-                        properties: vec![Property::Comment("c".to_owned())],
+                        properties: vec![Property::Comment(vec!["c".to_owned()])],
                         next: vec![],
                     },
                     Node {
-                        properties: vec![Property::Comment("d".to_owned())],
+                        properties: vec![Property::Comment(vec!["d".to_owned()])],
                         next: vec![Node {
-                            properties: vec![Property::Comment("e".to_owned())],
+                            properties: vec![Property::Comment(vec!["e".to_owned()])],
                             next: vec![],
                         }],
                     },
@@ -808,49 +775,49 @@ mod test {
         let (_, tree) = parse_tree::<nom::error::VerboseError<&str>>(EXAMPLE).unwrap();
 
         let j = Node {
-            properties: vec![Property::Comment("j".to_owned())],
+            properties: vec![Property::Comment(vec!["j".to_owned()])],
             next: vec![],
         };
         let i = Node {
-            properties: vec![Property::Comment("i".to_owned())],
+            properties: vec![Property::Comment(vec!["i".to_owned()])],
             next: vec![],
         };
         let h = Node {
-            properties: vec![Property::Comment("h".to_owned())],
+            properties: vec![Property::Comment(vec!["h".to_owned()])],
             next: vec![i],
         };
         let g = Node {
-            properties: vec![Property::Comment("g".to_owned())],
+            properties: vec![Property::Comment(vec!["g".to_owned()])],
             next: vec![h],
         };
         let f = Node {
-            properties: vec![Property::Comment("f".to_owned())],
+            properties: vec![Property::Comment(vec!["f".to_owned()])],
             next: vec![g, j],
         };
         let e = Node {
-            properties: vec![Property::Comment("e".to_owned())],
+            properties: vec![Property::Comment(vec!["e".to_owned()])],
             next: vec![],
         };
         let d = Node {
-            properties: vec![Property::Comment("d".to_owned())],
+            properties: vec![Property::Comment(vec!["d".to_owned()])],
             next: vec![e],
         };
         let c = Node {
-            properties: vec![Property::Comment("c".to_owned())],
+            properties: vec![Property::Comment(vec!["c".to_owned()])],
             next: vec![],
         };
         let b = Node {
-            properties: vec![Property::Comment("b".to_owned())],
+            properties: vec![Property::Comment(vec!["b".to_owned()])],
             next: vec![c, d],
         };
         let a = Node {
-            properties: vec![Property::Comment("a".to_owned())],
+            properties: vec![Property::Comment(vec!["a".to_owned()])],
             next: vec![b],
         };
         let expected = Node {
             properties: vec![
                 Property::FileFormat(4),
-                Property::Comment("root".to_owned()),
+                Property::Comment(vec!["root".to_owned()]),
             ],
             next: vec![a, f],
         };
@@ -872,59 +839,58 @@ mod test {
 
     #[test]
     fn it_parses_propvals() {
-        let (_, propval) = parse_propval::<nom::error::VerboseError<&str>>(parse_comment())
+        let (_, propval) = parse_propval::<nom::error::VerboseError<&str>>("[]").unwrap();
-            .parse("[]")
+        assert_eq!(propval, "".to_owned());
-            .unwrap();
-        assert_eq!(propval, Property::Comment("".to_owned()));
 
-        let (_, propval) = parse_propval::<nom::error::VerboseError<&str>>(parse_comment())
+        let (_, propval) =
-            .parse("[normal propval]")
+            parse_propval::<nom::error::VerboseError<&str>>("[normal propval]").unwrap();
-            .unwrap();
+        assert_eq!(propval, "normal propval".to_owned());
-        assert_eq!(propval, Property::Comment("normal propval".to_owned()));
 
-        let (_, propval) = parse_propval::<nom::error::VerboseError<&str>>(parse_comment())
+        let (_, propval) =
-            .parse(r"[need an [escape\] in the propval]")
+            parse_propval::<nom::error::VerboseError<&str>>(r"[need an [escape\] in the propval]")
                 .unwrap();
-        assert_eq!(
+        assert_eq!(propval, "need an [escape] in the propval".to_owned());
-            propval,
-            Property::Comment("need an [escape] in the propval".to_owned())
-        );
     }
 
     #[test]
     fn it_parses_propvals_with_hard_linebreaks() {
-        let (_, propval) = parse_text::<nom::error::VerboseError<&str>>()
+        let (_, propval) = parse_propval_text::<nom::error::VerboseError<&str>>(
-            .parse(
             "There are hard linebreaks & soft linebreaks.
 Soft linebreaks...",
         )
         .unwrap();
         assert_eq!(
             propval,
+            Some(
                 "There are hard linebreaks & soft linebreaks.
 Soft linebreaks..."
+                    .to_owned()
+            )
         );
     }
 
     #[test]
     fn it_parses_propvals_with_escaped_closing_brackets() {
-        let (_, propval) = parse_text::<nom::error::VerboseError<&str>>()
+        let (_, propval) =
-            .parse(r"escaped closing \] bracket")
+            parse_propval_text::<nom::error::VerboseError<&str>>(r"escaped closing \] bracket")
                 .unwrap();
-        assert_eq!(propval, r"escaped closing ] bracket".to_owned());
+        assert_eq!(
+            propval,
+            Some(r"escaped closing ] bracket".to_owned()).to_owned()
+        );
     }
 
     #[test]
     fn it_parses_propvals_with_soft_linebreaks() {
-        let (_, propval) = parse_text::<nom::error::VerboseError<&str>>()
+        let (_, propval) = parse_propval_text::<nom::error::VerboseError<&str>>(
-            .parse(
             r"Soft linebreaks are linebreaks preceeded by '\\' like this one >o\
 k<. Hard line breaks are all other linebreaks.",
         )
         .unwrap();
         assert_eq!(
             propval,
-            "Soft linebreaks are linebreaks preceeded by '\\' like this one >ok<. Hard line breaks are all other linebreaks."
+            Some("Soft linebreaks are linebreaks preceeded by '\\' like this one >ok<. Hard line breaks are all other linebreaks.".to_owned())
+                .to_owned()
         );
     }